JP5661908B2 - Power distribution system - Google Patents

Description

  The present invention relates to a power distribution system including a load device that consumes power supplied from a power source and a power control device that controls a power distribution system including the load device.

  Generally, a power distribution system includes a load device to which power is supplied from a commercial power source. In addition, a power distribution system including a distributed power source is known, and is configured to be able to supply power to a load device not only from a commercial power source but also from a distributed power source (see, for example, Patent Document 1). Such a power distribution system includes a power control device that controls a power distribution system including the load device, and the power supplied to the load device is controlled by the power control device.

JP 2009-159730 A

  Incidentally, in recent years, there has been a demand for energy saving (so-called energy saving) for electric power supplied to load equipment. In particular, energy saving is desired for power supplied from a distributed power source to a load device for a distributed power source in which power that can be supplied is limited compared to a commercial power source.

  However, the conventional power distribution system may not be able to meet the demand for energy saving. That is, in general, the load device is configured to be supplied with a certain amount of power, and the power supplied to the load device cannot be saved.

  This invention is made | formed in view of such a situation, The objective is to provide the power distribution system which can aim at energy saving about the electric power supplied to load equipment from a power supply.

In the following, means for achieving the above object and its effects are described.
The invention according to claim 1 includes a plurality of load devices that consume power supplied from a power source, and a power control device that controls a power distribution system including the plurality of load devices, the power control device comprising: As a power control mode in which power consumption consumed in the plurality of load devices is set, a first mode for reducing power consumption in the plurality of load devices, and the plurality of load devices than the first mode And a second mode corresponding to the second mode for each of the plurality of load devices, and a second mode corresponding to the second mode. The control content is predetermined, and the first power supply content for cutting off the power supply to the predetermined system corresponding to the first mode and the second mode for the power distribution system In response to When the power control mode is switched to the first mode, all of the plurality of load devices are respectively determined by the second power supply contents for controlling the power supply. When the power distribution system is controlled to become the first power supply content and the power control mode is switched to the second mode, All of the load devices are controlled to have the second control content determined for each, and the power distribution system is controlled to have the second power supply content, and the power distribution system is The predetermined system and other systems,
Distribution system by is switched the power control mode, the no power supply is controlled to other strains, the power supply to the predetermined system is characterized Rukoto controlled.

  According to the above configuration, power consumption in the load device is reduced by controlling the power consumption in the load device by the power control device and switching a plurality of power control modes in which the power consumed in the load device is variable. The For this reason, the power control mode is switched to the first mode (for example, the eco mode) for reducing the power consumption in the load device, whereby the power consumption in the load device is reduced and the power supplied from the power source to the load device. Can save energy.

  According to the above configuration, when the power control mode is switched, the power control apparatus controls the load device, and power consumption in the load device is reduced. For this reason, the power consumption in the load device is directly controlled, and energy saving can be reliably achieved for the power supplied from the power source to the load device.

  According to the above configuration, by switching between the plurality of power control modes, the power control device restricts power supply to a predetermined system constituting the power distribution system, and power consumption in the load device is reduced. For this reason, power supply to a predetermined system is restricted, and energy can be saved for the power supplied from the power source to the load device.

  According to the said structure, a power control apparatus interrupts | blocks the power supply to a predetermined | prescribed system | strain by switching several power control modes. For this reason, the power supply to a predetermined system | strain is interrupted | blocked and energy saving can be aimed at reliably about the electric power supplied to a load apparatus from a power supply.

  According to the above configuration, the power distribution system includes the predetermined system and the other system, and the power control mode is switched, so that the power supply to the other system is not controlled and the power distribution system is connected to the predetermined system. The power supply is controlled. For this reason, power supply to a predetermined system is preferentially controlled as compared to power supply to other systems. Therefore, for load devices included in other systems, a plurality of power control modes can be supplied with predetermined power from the power source regardless of switching.

The invention according to claim 2 is the power distribution system according to claim 1, wherein the operation mode of the load device can be changed, and the power consumption in the load device varies depending on the operation mode of the load device. However, by controlling the operation mode of the load device, power consumption in the load device is reduced while operating the load device.

  According to the above configuration, the power control device controls the operation mode of the load device, so that the power consumption in the load device is reduced while operating the load device. For this reason, the load device operates while reducing power consumption in the load device. Therefore, the present invention can be suitably applied to a load device that preferably continues to operate.

The invention according to claim 3 is the power distribution system according to claim 1 or 2 , wherein when the power control mode is switched, a predetermined load device among the plurality of load devices and another of the plurality of load devices It is possible to make the power control mode different between the load devices.

  According to the above configuration, it is possible to make the power control mode of a predetermined load device out of a plurality of load devices different from the power control mode of another load device. For this reason, for a predetermined device (for example, an air conditioner), the mode is switched to a mode (for example, a comfortable mode) for increasing the power consumption to provide a comfortable environment, and for other devices (for example, lighting devices). Thus, it is possible to switch to a first mode (for example, eco mode) for reducing power consumption. Therefore, it is possible to finely manage the power consumption consumed in the plurality of load devices, and to save energy for the power supplied from the power source to the plurality of load devices.

Invention of Claim 4 is an electric power distribution system as described in any one of Claims 1-3 , Comprising: The operation part operated in order to switch electric power control mode is provided, According to the operation content of an operation part Thus, the power control mode can be switched.

  According to the above configuration, the power distribution system includes the operation unit that is operated to switch the power control mode, and the power control mode is switched according to the operation content of the operation unit. For this reason, by operating the operation unit, it is possible to manually switch a plurality of power control modes in which the power consumption in the load device is variable.

Invention of Claim 5 is a power distribution system as described in any one of Claims 1-4 , Comprising: A power control apparatus changes power control mode based on the electric power which can be supplied to load equipment from a power supply. It is characterized by switching.

  According to the above configuration, the power control apparatus switches the power supply mode based on the power that can be supplied from the power source to the load device. For this reason, when it is determined that the power that can be supplied from the power source (for example, a solar cell configured as a distributed power source) to the load device is insufficient, the first mode (for example, the eco mode) for reducing the power consumption in the load device. Is automatically switched to (mode), the power consumption in the load device is automatically reduced, and the power supplied from the power source to the load device can be saved. In particular, power that can be supplied from a power source to a load device is predicted, and a plurality of power supply modes are switched based on the prediction result (that is, power that can be supplied in the future). Management of the power distribution system is possible.

Invention of Claim 6 is a power distribution system as described in any one of Claims 1-5 , Comprising: A power control apparatus switches power control mode based on the power consumption consumed in load apparatus It is characterized by that.

  According to the above configuration, the power control apparatus switches the power control mode based on the power consumption consumed in the load device. For this reason, when it is determined that the power consumption of the load device is large, the load device is automatically switched to the first mode (for example, the eco mode) for reducing the power consumption of the load device. Power consumption is automatically reduced, and energy can be saved for the power supplied from the power source to the load device. In particular, power consumption consumed in a load device is predicted, and a plurality of power supply modes are switched based on the prediction result (that is, power consumption consumed in the future) to prepare for power trading. Management of the power distribution system is possible.

The invention of claim 7 is a power distribution system according to any one of claims 1 to 6 further comprising a controller controlling a power control device, the control device via the network The acquired information is acquired by each of the power control devices as information for switching a plurality of power control modes.

  According to the above configuration, the control device that controls the plurality of power control devices causes each of the power control devices to acquire the information acquired through the network as information for switching the power control mode. The power control mode is switched based on the acquired information. For this reason, each power control device can switch a plurality of power control modes in which the power supplied to the load device is variable based on information acquired by the control device. Can be controlled.

The invention according to claim 8 is the power distribution system according to claim 7 , wherein the control device acquires information relating to the weather via the network, and switches the power control mode for the information relating to the weather. It is characterized in that each of the power control devices is acquired as information for this purpose.
The invention described in claim 9 is a power control apparatus, and is used in the power distribution system described in claims 1-8.

  According to the above configuration, the control device acquires information related to the weather via the network, and causes each of the power control devices to acquire the information related to the weather as information for switching a plurality of power control modes. For this reason, when the power supply which supplies electric power to a load apparatus is comprised by the solar cell, it becomes possible to estimate the electric power which can be supplied to a load apparatus from the information concerning the acquired weather.

  ADVANTAGE OF THE INVENTION According to this invention, the power consumption in a load apparatus is reduced and energy saving can be aimed at about the electric power supplied to a load apparatus from a power supply.

1 is a configuration diagram of a power supply system included in a power distribution system according to a first embodiment of the present invention. The table which shows the relationship between the some power control mode and the aspect in the electric power distribution system according to the power control mode in the embodiment. The lineblock diagram showing the power distribution system in which the power supply system concerning a 2nd embodiment of the present invention is included. The lineblock diagram of the electric power supply system contained in the power distribution system concerning the embodiment. The flowchart for demonstrating operation | movement of the power control apparatus at the time of transferring electric power between electric power distribution systems in the power distribution system which concerns on the embodiment. In the power distribution system which concerns on the embodiment, the flowchart for demonstrating the operation | movement of the power control apparatus system which changes an operation program and switches a some power control mode. (A)-(c) In the embodiment, it is explanatory drawing containing the graph for demonstrating an operation program, Comprising: The explanatory view containing the table | surface which shows the electric power control mode of each load apparatus according to the operation program.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings. Each figure is a schematic diagram illustrating only a configuration necessary for explaining the power distribution system, and illustration and description of other configurations are omitted.

(First embodiment)
As shown in FIG. 1, in the power distribution system 50, a power distribution system 52 is connected to a power line 51 connected to a commercial AC power source 2 that is a commercial power source. In the present embodiment, the power distribution system 52 is a power distribution system provided in a detached house.

  The power distribution system 52 controls power to a load device from at least one power source of the distributed power source 54 provided in a house, a load device to which power is supplied, and the commercial AC power source 2 and the distributed power source 54. And a control unit 7. The load device is various devices such as the DC device 5, and specifically, for example, lighting devices such as LED lighting, audio-visual devices such as TV (TV receiver), home appliances such as a refrigerator, air conditioners, etc. It is an electronic device such as an air conditioner, a building facility such as a floor heating facility, or a PC (Personal Computer).

  In the present embodiment, the distributed power source 54 includes the solar cell 3, the fuel cell 4, and the storage battery 16. The solar cell 3 is a power generation source that converts light energy of sunlight into electric power to generate electric power. The fuel cell 4 is a power generation source that generates power by a chemical reaction between the fuel and the oxidant. The storage battery 16 is a chargeable / dischargeable power source that stores electric power supplied from the commercial AC power source 2, the solar cell 3, and the fuel cell 4, and discharges it as necessary. The electric power from the power source (that is, the solar cell 3, the fuel cell 4, and the storage battery 16) constituting the distributed power source 54 is supplied to a load device such as the DC device 5 through the control unit 7.

  The control unit 7 that is a power control device converts the power supplied from the commercial AC power supply 2 to the control unit 7 into power corresponding to the load device in the house and supplies it to the load device. In addition, the control unit 7 converts the power supplied from the distributed power source 54 to the control unit 7 into power corresponding to the load device in the house and supplies it to the load device. That is, when the solar cell 3 or the fuel cell 4 generates power, or when the storage battery 16 can discharge power, not only the commercial AC power supply 2 but also the distributed power supply 54 supplies power to the load device. .

  When the distributed power source 54 can sufficiently supply power to the load device, the commercial AC power source 2 may not supply power to the load device. That is, as long as sufficient power is supplied to the load device, power may be supplied from at least one of the commercial AC power supply 2 and the distributed power supply 54.

  As described above, the power distribution system 50 includes the load device that consumes the power supplied from the commercial AC power supply 2 or the distributed power supply 54 and the control unit 7 that controls the power distribution system 52 including the load device. .

With reference to FIG. 1, the in-house power supply system 1 constituting the power distribution system 50 will be described in more detail.
As shown in FIG. 1, a house is provided with a power supply system 1 that supplies power to various devices (such as lighting devices, air conditioning devices, home appliances, and audiovisual devices) installed in the house. The power supply system 1 not only supplies power to various devices from a commercial AC power source (AC power source) 2 for home use, but also supplies power to various devices from a solar cell 3 and a fuel cell 4 that generate electricity using sunlight. It is the composition which is done. The power supply system 1 supplies power not only to the DC device 5 that operates by inputting a DC power supply (DC power supply) but also to the AC device 6 that operates by inputting an AC power supply (AC power supply).

  The power supply system 1 is provided with a control unit 7 and a DC distribution board (built-in DC breaker) 8 as a distribution board of the system 1. The power supply system 1 is provided with a control unit 9 and a relay unit 10 as devices for controlling the operation of the DC device 5 in the house.

  An AC distribution board 11 for branching AC power is connected to the control unit 7 via an AC power line 12. The control unit 7 is connected to the commercial AC power supply 2 via the AC distribution board 11, connected to the solar cell 3 via the DC power line 13a, and connected to the fuel cell 4 via the DC power line 13b. Has been. The control unit 7 functioning as a converter takes in AC power from the AC distribution board 11 and converts the taken AC power into predetermined DC power. Further, the control unit 7 takes in DC power from the solar cell 3 or the fuel cell 4 and converts the fetched DC power into predetermined DC power. Then, the control unit 7 outputs the converted DC power to the DC distribution board 8 via the DC system power line 14 or outputs it to the storage battery 16 via the DC system power line 15 to store the same power. To do. Further, the control unit 7 takes in the DC power stored in the storage battery 16, converts the acquired DC power into predetermined DC power, and converts the converted DC power into DC power distribution via the DC power line 14. Output to board 8. The control unit 7 exchanges data with the DC distribution board 8 via the signal line 17.

  In the present embodiment, the control unit 7 that is a power control device is appropriately connected so as to be communicable with the load devices so that the load devices such as the DC device 5 can be controlled. In addition, the control unit 7 and the load device may be connected so as to be communicable wirelessly, or may be connected so as to be communicable via a wire (that is, an electric wire which is a tangible object). When the control unit 7 and the load device are communicably connected by an electric wire, it is preferable that the electric wire also serves as a power line and a communication line from the viewpoint of simplifying the configuration. That is, it is preferable that communication between the control unit 7 and the load device is performed by a so-called power line carrier communication, in which a communication signal for transmitting data by a high-frequency carrier wave is superimposed on a DC voltage serving as a power source for the load device.

  The DC distribution board 8 is a kind of breaker that supports DC power. The DC distribution board 8 branches the DC power input from the control unit 7 and outputs the branched DC power to the control unit 9 via the DC power line 18 or relays via the DC power line 19. Or output to the unit 10. Further, the DC distribution board 8 exchanges data with the control unit 9 via the signal line 20 and exchanges data with the relay unit 10 via the signal line 21.

  A plurality of DC devices 5, 5... Are connected to the control unit 9. These DC devices 5 are connected to the control unit 9 via a DC supply line 22 that can carry both DC power and data. The DC supply line 22 superimposes a communication signal for transmitting data by a high-frequency carrier wave on a DC voltage serving as a power source for the DC device 5, so that both the power and the data are transferred to the DC device 5 through a pair of lines. Transport to. The control unit 9 acquires the DC power of the DC device 5 through the DC power line 18, and based on the operation command obtained from the DC distribution board 8 through the signal line 20, the DC device 5 to be controlled and its Understand the details of operation control. Then, the control unit 9 controls the operation of the DC device 5 by outputting a DC voltage and an operation command to the instructed DC device 5 via the DC supply line 22.

  A switch 23 that is operated when switching the operation of the DC device 5 in the house is connected to the control unit 9 via a DC supply line 22. In addition, a sensor 24 that detects a radio wave transmitted from an infrared remote controller, for example, is connected to the control unit 9 via a DC supply line 22. Therefore, not only the operation instruction from the DC distribution board 8 but also the operation of the DC device 5 based on the communication signal flowing in the DC supply line 22 based on the detection result not only by the operation of the switch 23 or the detection of the sensor 24. Be controlled.

  A plurality of DC devices 5, 5... Are connected to the relay unit 10 via individual DC power lines 25. The relay unit 10 acquires the DC power supply of the DC device 5 through the DC system power line 19, and which DC device 5 is operated based on the operation command obtained from the DC distribution board 8 through the signal line 21. To grasp about. The relay unit 10 controls the operation of the DC device 5 by turning on / off the power supply to the DC power line 25 with respect to the instructed DC device 5 using a built-in relay. In addition, a plurality of switches 26 for manually operating the DC device 5 are connected to the relay unit 10, and the DC power line 25 is turned on and off by the relay by operating the switch 26, thereby enabling the DC unit 5 to operate the DC unit 5. The device 5 is controlled.

  The control unit 7 for controlling the power distribution system 52 is a system including a predetermined DC supply line 22 or a DC system power line 25 on the DC distribution board 8 via the signal line 17 (for example, the system 52a shown in FIG. 1). ) Can be transmitted to limit the power supply to. The DC distribution board 8 that has received a command signal for limiting the power supply to the system including the predetermined DC supply line 22 from the control unit 7, based on the command signal, the predetermined DC supply line 22 or the DC system. The circuit breaker corresponding to the system including the power line 25 is operated to cut off the power supply to the system.

  The DC distribution board 8 is connected to a DC outlet 27 built in a house in the form of a wall outlet or a floor outlet, for example, via a DC power line 28. If a plug (not shown) of a DC device is inserted into the DC outlet 27, DC power can be directly supplied to the device.

  Further, between the commercial AC power supply 2 and the AC distribution board 11, an electric power meter 29 capable of remotely measuring the amount of use of the commercial AC power supply 2 in one dwelling unit is connected. The power meter 29 is equipped with not only a function of remote meter reading of the amount of commercial power used, but also a function of power line carrier communication and wireless communication, for example. The power meter 29 transmits the meter reading result to an electric power company or the like via power line carrier communication or wireless communication.

  The power supply system 1 is provided with a network system 30 that enables various devices in the home to be controlled by network communication. The network system 30 is provided with a home server 31 as a control unit of the system 30. The home server 31 is connected to a management server 32 outside the home via a network N such as the Internet, and is connected to a home device 34 via a signal line 33. In addition, the in-home server 31 operates with DC power acquired from the DC distribution board 8 via the DC power line 35.

  A control box 36 that manages operation control of various devices in the home by network communication is connected to the home server 31 via a signal line 37. The control box 36 is connected to the control unit 7 and the DC distribution board 8 via the signal line 17 and directly controls the DC device 5 via the DC supply line 38. For example, a gas / water meter 39 capable of remotely metering the amount of gas used or the amount of water used is connected to the control box 36 and also connected to the operation panel 40 of the network system 30. The operation panel 40 is connected to a monitoring device 41 including, for example, a door phone slave, a sensor, and a camera.

  When the in-home server 31 inputs an operation command for various devices in the home via the network N, the home server 31 notifies the control box 36 of the instruction, and operates the control box 36 so that the various devices operate in accordance with the operation command. . The in-home server 31 can provide various information acquired from the gas / water meter 39 to the management server 32 through the network N, and accepts from the operation panel 40 that the monitoring device 41 has detected an abnormality. This is also provided to the management server 32 through the network N.

  Moreover, the operation part 42 for controlling the control unit 7 etc. of each dwelling unit is provided in the house, and the operation part 42 is connected to the control unit 7 so that communication is possible. Therefore, when the operation unit 42 is operated, the control unit 7 acquires information related to the operation content of the operation unit 42. The operation unit 42 includes switches, buttons, a touch panel, and the like that can be manually operated. This operation part 42 may be provided in any place, for example, may be provided in the DC distribution board 8. Further, the operation panel 40 may also serve as the operation unit 42.

  Here, in the present embodiment, the power distribution system 50 including the power supply system 1 has a plurality of power control modes in which the power consumption consumed in the load device is variable, and is consumed by the control unit 7 in the load device. It is characterized in that the power consumption is reduced in the load device by controlling the power and switching between a plurality of power control modes. The present invention will be described in detail below.

  FIG. 2 is a table showing a plurality of power control modes of the power distribution system 50 and modes of the power distribution system in the power control mode. As shown in FIG. 2, the power supply system 1 included in the power distribution system 50 has at least a comfort mode and an eco mode as a plurality of power control modes in which power consumption consumed in the load device is variable. ing. The power consumption consumed by the load device in the eco mode is configured to be smaller than the power consumption consumed by the load device in the comfort mode. In the present embodiment, the power supply system 1 further has an intermediate mode as the power control mode. The power consumption consumed by the load device in the intermediate mode is configured to be smaller than the power consumption consumed by the load device in the comfort mode, and compared with the power consumption consumed by the load device in the eco mode. And is configured to be large. The intermediate mode may have a plurality of stages.

  In the present embodiment, the power control mode described above can be selected using the operation unit 42, and a plurality of power control modes are switched according to the operation content of the operation unit 42. More specifically, the control unit 7 that controls the power distribution system 52 including the load device acquires information on the operation content of the operation unit 42 from the operation unit 42, and any of the plurality of power control modes is selected. Know what was selected. Then, the control unit 7 controls the load device included in the power distribution system 52 and the power supply mode in the power distribution system 52 based on the power control mode selected using the operation unit 42.

  Note that regarding the selection (switching) of the power control mode, the power consumption in all the load devices may not be reduced by switching the power control mode. More specifically, for example, the comfort mode may be selected for an air conditioner, and the eco mode may be selected for a lighting device. In other words, a plurality of power control modes in which the power consumption consumed in the air conditioner can be varied, and a plurality of power control modes in which the power consumption consumed in the lighting device can be varied. Further, the load device that changes the power control mode in this way is not limited to an air conditioner, a lighting device, or the like.

Next, a specific operation of the control unit 7 when controlling the power distribution system 52 based on the power control mode will be described.
First, the operation of the control unit 7 when the comfortable mode is selected using the operation unit 42 (that is, when the comfortable mode is switched from the intermediate mode or the eco mode) will be described.

  The control unit 7 that has grasped that the comfort mode has been selected from among the plurality of power control modes controls the load device so that a desired operation is possible. Specifically, the control unit 7 controls the operation mode of the load device as shown in FIG. 2 to enable the load device to perform a desired operation without reducing the power consumption in the load device.

  More specifically, for example, when the load device controlled by the control unit 7 is LED lighting, the load device is controlled so that the illuminance becomes bright when the comfort mode is selected. That is, the LED illumination composed of a plurality of LEDs (Light Emitting Diodes) is controlled by the control unit 7 so that all the LEDs emit light without thinning out the emitted LEDs. For example, when the load device controlled by the control unit 7 is a TV, the load device is controlled so that the screen illuminance becomes bright when the comfort mode is selected. For example, when the load device controlled by the control unit 7 is a refrigerator, the load device is controlled so that the internal temperature becomes lower when the comfort mode is selected. Further, for example, when the load device controlled by the control unit 7 is an air conditioner such as an air conditioner, the load device is controlled so that the cooling temperature in the cooling operation becomes lower when the comfort mode is selected. Is done. Further, for example, when the load device controlled by the control unit 7 is an air conditioner such as an air conditioner or a floor heating facility, the heating temperature in the heating operation is increased when the comfort mode is selected. The load equipment is controlled. When the load device controlled by the control unit 7 is a PC, when the comfort mode is selected, the PC operation mode is shifted to a sleep mode (for example, a mode in which no user operation is accepted). The load device is controlled to prohibit.

  Next, the operation of the control unit 7 when the eco mode is selected using the operation unit 42 (that is, when the intermediate mode or the comfort mode is switched to the eco mode) will be described.

  The control unit 7 grasping that the eco mode has been selected from among the plurality of power control modes controls the load device so as to reduce the power consumption. Specifically, since the power consumption in the load device whose operation mode can be changed differs depending on the operation mode of the load device, the control unit 7 controls the operation mode of the load device as shown in FIG. The power consumption in the load device is reduced while operating the load device.

  More specifically, for example, when the load device controlled by the control unit 7 is LED lighting, the load device is controlled so that the illuminance becomes dark when the eco mode is selected. That is, the LED illumination composed of a plurality of LEDs is controlled by the control unit 7 so that many LEDs emit light, and all the LEDs do not emit light. For example, when the load device controlled by the control unit 7 is a TV, the load device is controlled so that the screen illuminance becomes dark when the eco mode is selected. For example, when the load device controlled by the control unit 7 is a refrigerator, when the eco mode is selected, the load device is controlled so that the internal temperature becomes higher. For example, when the load device controlled by the control unit 7 is an air conditioner such as an air conditioner, the load device is controlled so that the cooling temperature in the cooling operation becomes higher when the eco mode is selected. Is done. In addition, for example, when the load device controlled by the control unit 7 is an air conditioner such as an air conditioner or a floor heating facility, the heating temperature in the heating operation is lowered when the eco mode is selected. The load equipment is controlled. In addition, when the load device controlled by the control unit 7 is a PC, the load device is controlled so that the operation mode of the PC shifts to the sleep mode when the user is not operating when the eco mode is selected. The

  Therefore, when the eco mode is selected, the power consumption in the load device is smaller than when the comfort mode is selected. Therefore, the control unit 7 controls the load device by switching the plurality of power control modes. Thus, power consumption in the load device can be reduced.

  When the intermediate mode is selected using the operation unit 42 (that is, when the eco mode or the comfort mode is switched to the intermediate mode), the control unit 7 is compared with the case where the eco mode is selected. The load device is controlled so that the power consumption is large and the power consumption is smaller than when the comfortable mode is selected.

  Furthermore, in the present embodiment, by switching between a plurality of power control modes, the control unit 7 restricts power supply to a predetermined system constituting the power distribution system 52, and power consumption in the load device is reduced. The

  Specifically, when the eco mode is selected using the operation unit 42 (that is, when the intermediate mode or the eco mode is switched to the comfort mode), the control unit 7 is a predetermined unit to which the load device is connected. Shut off the power supply to the system. That is, as shown in FIG. 2, when the eco mode is selected, the control unit 7 stops power supply to a system with a low power supply priority.

  More specifically, the power distribution system 52 includes, for example, a predetermined system 52a (see FIG. 1) having a low power supply priority and another system 52b (see FIG. 2) having a high power supply priority. When the eco mode is selected (that is, when the intermediate mode or the comfort mode is switched to the eco mode), the power supply to the system 52a is not controlled and the power supply to the system 52a is performed. Be controlled. That is, when the eco mode is selected, the control unit 7 restricts and cuts off the power supply to the system 52a without cutting off the power supply to the system 52b. Such interruption of the power supply is performed by the control unit 7 transmitting a command signal for limiting the power supply to a predetermined system to the DC distribution board 8 via the signal line 17.

  On the other hand, when the comfortable mode or the intermediate mode is selected, the control unit 7 supplies power to all the systems to which the load device is connected. Even when the intermediate mode is selected, the control unit 7 may be configured to limit power supply to a predetermined system in view of the priority of power supply.

  As described above, when the eco mode is selected and the load device is controlled by the control unit 7, the power consumption in the load device is reduced, and the power supplied from the commercial AC power supply 2 or the distributed power supply 54 is saved. Can be planned. When the comfortable mode is selected and the load device is controlled by the control unit 7, power sufficient for the operation of the load device is supplied from the commercial AC power supply 2 or the distributed power supply 54. For example, lighting for adjusting the indoor environment It is possible to provide a comfortable environment for residents by fully exhibiting the functions of the building facilities such as equipment and air conditioning equipment.

According to this embodiment, the following effects can be obtained.
(1) The power distribution system 50 includes a load device (for example, the DC device 5) that consumes power supplied from the commercial AC power supply 2 or the distributed power supply 54, and a control unit 7 that controls the power distribution system 52 including the load device. And has a plurality of power control modes in which the power consumption consumed in the load device is variable. And the power consumption in a load apparatus is controlled by the control unit 7, and the power consumption in a load apparatus is reduced by switching a some power control mode. For this reason, the power control mode is switched to a mode for reducing the power consumption in the load device (that is, the eco mode), whereby the power consumption in the load device is reduced, and the load device from the commercial AC power supply 2 or the distributed power supply 54 is reduced. It is possible to save energy for the power supplied to the.

  (2) By switching between a plurality of power control modes, the control unit 7 restricts power supply to a predetermined system (for example, the system 52a) constituting the power distribution system 52, thereby reducing power consumption in the load device. Is done. For this reason, power supply to a predetermined system is limited, and energy can be saved for the power supplied from the commercial AC power supply 2 or the distributed power supply 54 to the load device.

  (3) When a plurality of power control modes are switched, the control unit 7 cuts off power supply to a predetermined system (for example, the system 52a). For this reason, power supply to a predetermined system is interrupted, and energy saving can be reliably achieved for the power supplied from the commercial AC power supply 2 or the distributed power supply 54 to the load device.

  (4) The power distribution system 52 includes a predetermined system (for example, the system 52a) and another system (for example, the system 52b), and the power supply to other systems can be performed by switching a plurality of power control modes. The power supply to a predetermined system is controlled without being controlled. For this reason, power supply to a predetermined system is preferentially controlled as compared to power supply to other systems. Therefore, with respect to load devices included in other systems, it is possible to supply predetermined power from the commercial AC power supply 2 or the distributed power supply 54 regardless of switching between the plurality of power control modes.

  (5) By switching a plurality of power control modes, the control unit 7 controls the load device, and power consumption in the load device is reduced. For this reason, the power consumption in the load device is directly controlled, and energy saving can be reliably achieved for the power supplied from the commercial AC power supply 2 or the distributed power supply 54 to the load device.

  (6) While the operation mode of the load device can be changed, the power consumption in the load device varies depending on the operation mode of the load device. And the control unit 7 controls the operation | movement aspect of a load apparatus, The power consumption in this load apparatus is reduced, operating a load apparatus. For this reason, the load device operates while reducing power consumption in the load device. Therefore, the present invention can be suitably applied to a load device that preferably continues to operate.

  (7) The power distribution system 50 includes a plurality of load devices. In addition, for a predetermined load device (for example, an air conditioner), the plurality of power control modes for changing power consumption consumed by the load device can be switched, and other load devices (for example, lighting devices) can be switched. Etc.) can be switched among the plurality of power control modes in which the power consumption consumed in the load device is variable. A plurality of power control modes in which power consumption consumed in a predetermined load device can be varied, and a plurality of power control modes in which power consumption consumed in other load devices can be made different from each other. It is. For this reason, for a predetermined device (that is, an air conditioner or the like), the power consumption is increased to switch to a comfortable mode for a comfortable environment, and for other devices (that is, lighting devices or the like), the power consumption is decreased. Can be switched to eco-mode. Therefore, it is possible to finely manage the power consumption consumed in the plurality of load devices, and to save energy for the power supplied from the commercial AC power supply 2 or the distributed power source 54 to the plurality of load devices.

  (8) The power distribution system 50 includes an operation unit 42 that is operated to switch a plurality of power control modes, and the plurality of power control modes are switched according to the operation content of the operation unit 42. For this reason, by operating the operation unit 42, it is possible to manually switch between a plurality of power control modes in which the power consumption in the load device is variable.

  (9) The power distribution system 50 includes a solar cell 3 that generates power by the photovoltaic effect, a fuel cell 4 that generates power by an electrochemical reaction, a solar cell 3 and a fuel cell 4 as a distributed power source 54 that supplies power to load equipment. A storage battery 16 capable of storing the generated power is provided. For this reason, it is possible to save energy with respect to the power supplied from the distributed power source 54 to the load device, and to refrain from the power supply from the commercial AC power source 2.

(Second Embodiment)
Next, 2nd Embodiment at the time of changing so that the electric power distribution system 52 in the said 1st Embodiment may be provided in each dwelling unit of an apartment house is described. In addition, about the component similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted or simplified.

  As shown in FIG. 3, in the present embodiment, in the power distribution system 50, a plurality of power distribution systems 52 are connected to one power line 51 connected to the commercial AC power supply 2. In the present embodiment, the power line 51 is a DC power line serving as a trunk of a power supply path provided in an apartment house such as an apartment, and the power distribution system 52 is a distribution system provided in each dwelling unit of the apartment house. is there. Therefore, the power distribution system 53 including the plurality of power distribution systems 52 is a power distribution system for distributing power to the entire apartment house.

  The apartment house is provided with a control device 56 that controls the control unit 7 and the like of each dwelling unit, and the control device 56 is connected to the plurality of control units 7 in a communicable manner. In other words, the control device 56 is a higher-level management device that performs overall management of power in the plurality of control units 7, and the control unit 7 is a lower-level management device for power.

  The control device 56 is connected to the server 57 via a network N such as the Internet, like the home server 31. The control device 56 acquires various information via the network N. For example, the control device 56 acquires information related to the weather that can be used to predict the power generation amount of the solar cell 3 from the server 57. In addition, the control device 56 can transmit information related to charging in the power trading to a power management company such as a power company via the network N.

  In the present embodiment, the distributed power source 54, the control unit 7, and the like are provided for each dwelling unit. In the present embodiment, the control unit 7 not only functions as a converter that converts AC power supplied from the commercial AC power source 2 into DC power to be supplied to the load device, but also supplied from the distributed power source 54. It also functions as an inverter that converts DC power to AC power.

  That is, under a predetermined condition, the control unit 7 converts DC power supplied from the distributed power source 54 to the control unit 7 into AC power and supplies it to the power line 51. Accordingly, since the plurality of power distribution systems 52 are connected to the same power line 51 in the power distribution system 50, the power of the distributed power source 54 of the predetermined power distribution system 52 is transferred to other power distribution systems via the power line 51. It can be supplied to the system 52 and supplied to the load equipment of another power distribution system 52. Therefore, in this embodiment, power can be exchanged between the dwelling units of the apartment house.

  In addition, the control unit 7 acquires information for switching a plurality of power control modes from the control device 56. Even if this information is information for forcibly switching a plurality of power control modes, it is information (for example, information relating to the weather described later) that serves as a judgment material for switching a plurality of power control modes. Also good.

  Next, the power supply system 1 including the power distribution system 52 in each dwelling unit constituting the power distribution system 50 will be described with reference to FIG. In addition, the electric power distribution system 52 of each dwelling unit is the same structure.

  As shown in FIG. 4, in this embodiment, the electric power supply system 1 is provided in each dwelling unit. In the present embodiment, the control unit 7 not only takes in AC power from the AC distribution board 11, but also converts DC power of the solar cell 3 and the storage battery 16 into AC power and supplies it to the AC distribution board 11. It is also possible to do. That is, the control unit 7 that also functions as an inverter takes in DC power from the solar cell 3, the fuel cell 4, and the storage battery 16, converts it into predetermined AC power, and converts the converted AC power into the AC power line 12. And output (discharge) to the power line 51 via the AC distribution board 11.

Next, the power distribution system 50 according to the present embodiment capable of transferring power between the dwelling units of the apartment will be described in detail.
As described above, the control unit 7 converts the DC power supplied from the distributed power supply 54 to the control unit 7 into AC power and supplies it to the power line 51 under predetermined conditions. Here, the predetermined condition for supplying power from the control unit 7 to the power line 51 is when the distributed power source 54 can generate surplus power.

  That is, when the distributed power source 54 provided for each dwelling unit can supply power to the control unit 7 exceeding the power to be supplied to the load device in the dwelling unit provided with the distributed power source 54, Surplus power is supplied from the mold power source 54 to the control unit 7. Therefore, surplus power is supplied from one dwelling unit to the power line 51, and surplus power is supplied to the other dwelling units.

  FIG. 5 is a flowchart showing an operation flow of the control unit 7 when surplus power is sold between dwelling units. The series of operations shown in FIG. 5 may be started manually, for example, or may be automatically started based on a command signal from the control device 56. Hereinafter, the operation of the control unit 7 when buying and selling power will be described with reference to FIG.

  As shown in FIG. 6, the control unit 7 acquires information on the amount of power supplied from the commercial AC power supply 2 (step S11), and then acquires information on the amount of power demand of the power distribution system 52 (step S12). . The information on the power supply amount and the power demand amount includes, for example, the power detection result in the power meter 29 provided in the power distribution system 52 and the power in the control unit 9 and the relay unit 10 to which the DC device 5 is connected. It can be acquired based on the detection result. Thus, by acquiring information on the power supply amount and the power demand amount, it is possible to grasp the shortage or excess of power in the power distribution system 52. That is, the information on power consumption includes information on power consumption in the load device.

  Next, the control unit 7 determines whether or not the distributed power source 54 can supply surplus power (step S13). Specifically, the control unit 7 acquires information about the amount of power that can be supplied from the distributed power source 54, and based on the information acquired in steps S11 and S12, distributes power for selling power to the distributed power source 54. To determine whether or not sufficient supply is possible. That is, when the amount of power that can be supplied from the distributed power source 54 is equal to or greater than a predetermined amount of power, the control unit 7 determines that the distributed power source 54 can supply surplus power.

  If it is determined in step S13 that the distributed power source 54 cannot supply surplus power, power is purchased from the commercial AC power source 2 or the like (step S14). That is, power is supplied from the power line 51 to the storage battery 16 and the load device.

  On the other hand, when it is determined in step S13 that the distributed power source 54 can supply surplus power, power is sold from the distributed power source 54 (step S15). That is, surplus power is supplied from the distributed power source 54 to the power line 51.

  Here, in this embodiment, in order to manage the trading of the power, the control unit 7 is configured to automatically switch between a plurality of power control modes in which the power supplied to the load device is variable. . Hereinafter, a series of operations of the control unit 7 when automatically switching between a plurality of power control modes will be described.

  FIG. 6 is a flowchart showing an operation flow of the control unit 7 when the plurality of power control modes are automatically switched. A series of operations shown in FIG. 6 may be started periodically, for example, or may be automatically started based on a command signal from the control device 56.

  As shown in FIG. 6, first, the control unit 7 predicts the amount of power generated by the distributed power source 54 (step S21). For example, when the power generation amount of the solar cell 3 is predicted, prediction of the power generation amount can be performed based on information relating to weather that can be acquired from the server 57 via the control device 56.

  Next, the control unit 7 predicts the power demand amount of the load device in the power distribution system 52 (step S22). Such prediction of power demand can be performed based on, for example, life data obtained from power consumption that has been consumed in the load device so far. That is, the power demand amount of the load device is power consumption consumed in the load device in the future.

  Next, the control unit 7 predicts the power that can be supplied from the distributed power source 54 to the load device based on the power generation amount and the power demand predicted in steps S21 and S22, and based on the prediction result, A storage amount necessary for the storage battery 16 is calculated so that sufficient power can be supplied from the distributed power source 54 to the load device (step S23). That is, as the power generation amount predicted in step S21 is smaller, it is determined that the power that can be supplied from the distributed power source 54 to the load device is insufficient, and a larger amount of power storage is calculated. Further, it is determined that the larger the power demand predicted in step S22 is, the more power is consumed in the load device, and the larger amount of power storage is calculated. In this way, in order to minimize the purchase of power from the commercial AC power supply 2, the amount of power to be stored in the storage battery 16 is calculated.

  Next, the control unit 7 selects a predetermined operation program among a plurality of operation programs set in advance based on the necessary amount of electricity calculated in step S23 (step S24). The operation program is a program according to the control mode of the power distribution system 52 and is stored in a memory (not shown) in the control unit 7. That is, the control unit 7 has an operation program. In the operation program, a power control mode corresponding to each load device is set for a plurality of load devices.

  And the control unit 7 switches electric power control mode according to the driving | operation program selected in step S24 (step S25). Therefore, when an operation program is selected so as to change from one operation program to another operation program, the power control mode for a plurality of load devices set in the operation program is switched. Hereinafter, an operation program for switching a plurality of power control modes will be described in detail.

  In the present embodiment, each driving program is evaluated by an evaluation axis of comfort, energy saving, and cost saving as shown in FIG. Comfort is the degree to which a load device operates to contribute to providing a comfortable environment for residents in the dwelling, and energy saving is energy saving by reducing power supply to the load device. The cost-saving property is a degree that can contribute to cost reduction by reducing the power supply to the load device.

  As shown in FIG. 7, the operation program configured by two or more operation programs includes, for example, a first operation program, a second operation program, and a third operation program. For example, as shown in FIG. 7, each operation program includes information related to the power control mode for air-conditioning equipment and lighting equipment that are load equipment. And these driving programs differ in evaluation of comfort, energy-saving property, and cost performance, as shown to Fig.7 (a)-(c). Note that the operation program shown in FIG. 7 is an example, and the information related to the power control mode included in the operation program is not limited to the control target for the air conditioner and the lighting device. It may be an operation program for controlling building equipment such as floor heating equipment, electronic equipment, and the like.

  When the first operation program is selected in step S24, the comfort mode is selected for the air conditioner, and the eco mode is also selected for the lighting device. That is, when the first operation program is selected, as described in the first embodiment, for example, the lighting device is controlled so that the illuminance of the LED illumination is brightened, and the cooling temperature in the cooling operation of the air conditioner is controlled. The air conditioner is controlled so as to be low. Note that the power control mode selected when the driving program is selected is not limited to the comfort mode and the eco mode, and may be the intermediate mode described in the first embodiment. That is, also in this embodiment, a plurality of stepwise power control modes may be selected as in the first embodiment.

  Further, when the second operation program is selected in step S24, the comfort mode is selected for the air conditioner, and the eco mode is selected for the lighting device. That is, when the second operation program is selected, as described in the first embodiment, for example, the lighting device is controlled so that the illuminance of the LED illumination is brightened, and the cooling temperature in the cooling operation of the air conditioner is controlled. The air conditioner is controlled so as to be higher.

  Further, when the third operation program is selected in step S24, the eco mode is selected for the air conditioner, and the eco mode is also selected for the lighting device. That is, when the third operation program is selected, as described in the first embodiment, for example, the illumination device is controlled so that the illuminance of the LED illumination becomes dark, and the cooling temperature in the cooling operation of the air conditioner is controlled. The air conditioner is controlled so as to be higher.

  Therefore, at the time of selecting the first operation program, the total power consumption consumed in the air conditioner and the load device is larger than that at the time of selecting the second or third operation program, as shown in FIG. The evaluation of the first driving program is high in comfort but low in energy saving and cost saving. Further, at the time of selecting the third operation program, the total power consumption consumed in the air conditioner and the load device is smaller than that at the time of selecting the first or second operation program, as shown in FIG. The evaluation of the third driving program is low in comfort but high in energy saving and cost saving.

  Note that, when the second operation program is selected, the total power consumption in the air conditioner and the load device is smaller than when the first operation program is selected, and compared with the time when the third operation program is selected. The total power consumed by the load equipment is large. Therefore, as shown in FIG. 7B, the evaluation of the second operation program has lower comfort and higher energy and cost savings than the evaluation of the first operation program. Compared with the evaluation of the driving program 3, the comfort is high and the energy saving and cost saving are low.

  Therefore, the operation program selected in step S24 is preferably an operation program (for example, the first operation program) having a higher evaluation of energy saving as the required amount of power calculated in step S23 is larger. In order to increase the amount of stored electricity, it is preferable to select an operation program with high energy saving performance in step S24, but considering the other circumstances, an operation program with high evaluation of cost saving performance and comfort is selected. May be.

According to this embodiment, in addition to the effects described in (1) above, the following effects can be obtained.
(10) The control unit 7 switches the plurality of power control modes in step S25 based on the power that can be supplied from the distributed power source 54 to the load device in step S23. For this reason, when it is determined that the power that can be supplied from the distributed power source 54 to the load device is insufficient, the mode is automatically switched to a mode for reducing the power consumption in the load device, thereby reducing the power consumption in the load device. Energy saving can be achieved for the power that is automatically reduced and is supplied from the commercial AC power supply 2 or the distributed power supply 54 to the load device. In particular, power that can be supplied from the distributed power source 54 to the load device is predicted, and a plurality of power supply modes are switched based on the prediction result (that is, power that can be supplied in the future). Management of the provided power distribution system 52 is possible.

  (11) The control unit 7 switches a plurality of power control modes in step S25 based on the power consumption consumed in the load device grasped in step S22. For this reason, when it is determined that the power consumption in the load device is large, the power consumption in the load device is automatically reduced by automatically switching to the mode for reducing the power consumption in the load device. Thus, energy can be saved for the power supplied from the commercial AC power supply 2 or the distributed power supply 54 to the load device. In particular, since power consumption consumed in the load device is predicted and a plurality of power supply modes are switched based on the prediction result (that is, power consumption consumed in the future), power for power trading Management of the power distribution system 52 is possible.

  (12) The control unit 7 acquires information (for example, information related to the weather) for switching between the plurality of power control modes in step S21, and sets the plurality of power control modes in step S25 based on the acquired information. Switch. For this reason, based on information from the outside of the control unit 7, a plurality of power control modes in which the power supplied to the load device is variable can be switched.

  (13) The power distribution system 50 includes a control device 56 that controls the plurality of control units 7, and the control device 56 receives the information acquired via the network N (that is, information related to the weather) in step S <b> 21. Each of the control units 7 is acquired as information for switching the power control mode. For this reason, each control unit 7 can switch a plurality of power control modes in which the power supplied to the load device is variable based on the information acquired by the control device 56, so that the control device 56 can control a plurality of control modes. The unit 7 can be controlled in an integrated manner.

  (14) The control device 56 acquires information related to the weather via the network N, and causes each of the control units 7 to acquire the information related to the weather as information for switching a plurality of power control modes. For this reason, it is possible to estimate the power that can be supplied to the load device from the acquired information on the weather for the distributed power source 54 that is a power source that supplies power to the load device and is configured by the solar cell 3. is there.

  In addition, this invention is not limited to the said embodiment, A various design change is possible based on the meaning of this invention, and they are not excluded from the scope of the present invention. For example, the above embodiment may be changed as follows, and the following changes and the above embodiments may be combined.

  In the second embodiment, the control device 56 controls the plurality of control units 7 so that the power transfer between the plurality of power distribution systems 52 is managed. Instead of using 56, power transfer between the plurality of power distribution systems 52 may be managed. In the case of such a configuration, the control unit 7 may have a function as the control device 56.

  In the above embodiment, the distributed power source 54 is configured by the solar cell 3, the fuel cell 4, and the storage battery 16. However, the distributed power source 54 may not be configured to include all of these power sources. It may be configured by a power source.

  In the above embodiment, the power distribution system 52 is provided in a single-family house or an apartment house, but the present invention may be applied to an infrastructure other than a house. Specifically, for example, the power distribution system 52 may be provided in an office, a store, or the like.

  In the above embodiment, the power control device that controls the power distribution system 52 may be configured by a device other than the control unit 7. In addition, the power control device that restricts power supply to a predetermined system constituting the power distribution system 52 and the power control device that controls the load device may be configured by separate devices.

  -The operation program which concerns on the control aspect of the power distribution system 52 is not restricted to the operation program demonstrated in the said 2nd Embodiment, Moreover, the some power control mode which makes variable the power consumption consumed in load apparatus is the following. The power control mode described in the above embodiment is not limited.

  DESCRIPTION OF SYMBOLS 1 ... Electric power supply system, 2 ... Commercial alternating current power supply (power supply), 3 ... Solar cell (power supply), 4 ... Fuel cell (power supply), 5 ... DC apparatus (load apparatus), 6 ... AC apparatus, 7 ... Control unit ( Power control device), 8 ... DC distribution board, 9 ... control unit, 10 ... relay unit, 11 ... AC distribution board, 12 ... AC power line, 13a, 13b, 14, 15, 18, 19, 25, 28 35 ... DC power line, 16 ... Storage battery (power supply), 17, 20, 21, 33, 37 ... Signal line, 22,38 ... DC supply line, 23,26 ... Switch, 24 ... Sensor, 27 ... DC outlet, DESCRIPTION OF SYMBOLS 29 ... Electric power meter, 30 ... Network system, 31 ... Home server, 32 ... Management server, 34 ... Home equipment, 36 ... Control box, 39 ... Gas / water meter, 40 ... Operation panel, 41 ... Monitoring equipment 42 ... operation section, 50 ... power distribution system, 51 ... power line, 52 ... power distribution system, 53 ... power distribution system, 54 ... distributed power (power supply), 56 ... controller, 57 ... server.

Claims (9)

A plurality of load devices consuming power supplied from a power source;
A power control device for controlling a power distribution system including the plurality of load devices,
The power control apparatus includes a first mode for reducing power consumption in the plurality of load devices, as a power control mode in which power consumption consumed in the plurality of load devices is set, and the first mode. And a second mode in which power consumption in the plurality of load devices is large,
For each of the plurality of load devices, a first control content corresponding to the first mode and a second control content corresponding to the second mode are determined in advance.
A first power supply content for cutting off power supply to a predetermined system corresponding to the first mode and a power supply control corresponding to the second mode for the power distribution system. 2 power supply contents are determined in advance,
When the power control mode is switched to the first mode, all of the plurality of load devices are controlled to have the first control content determined respectively, and the power distribution system is Controlled to be the first power supply content,
When the power control mode is switched to the second mode, all of the plurality of load devices are controlled so as to have the second control content determined respectively, and the power distribution system is It is controlled to become the second power supply content, the power distribution system includes the predetermined system and another system,
Power distribution system by the power control mode is switched, the without power supply is controlled to other strains, characterized in that the power supply to the predetermined strains that are controlled. The operation mode of the load device can be changed, and the power consumption in the load device varies depending on the operation mode of the load device,
The power distribution system according to claim 1, wherein the power control device controls an operation mode of the load device to reduce power consumption in the load device while operating the load device. When the power control mode is switched, the power control mode can be made different between a predetermined load device among the plurality of load devices and another load device among the plurality of load devices. The power distribution system according to claim 1 or 2 . An operation unit operated to switch the power control mode;
A power distribution system according to any one of claims 1 to 3 according to the operation content of the operation unit, characterized in that the switches are the power control mode. The power control unit based on the power available from the power source to the load device, power distribution system as claimed in any one of claims 1 to 4, characterized in that switching the power control mode. Wherein the power controller, power distribution system as claimed in any one of claims 1 to 5 based on the power consumed in the load device, and switches the power control mode. A control device for controlling the plurality of power control devices;
The control device causes each of the power control devices to acquire information acquired via a network as information for switching the power control mode,
The said power control apparatus switches the said power control mode based on the acquired information, The power distribution system as described in any one of Claims 1-6 characterized by the above-mentioned. The control device acquires information related to weather via a network, and causes each of the power control devices to acquire information related to the weather as information for switching the power control mode. Item 8. The power distribution system according to Item 7 .   The power control apparatus used for the power distribution system of Claims 1-8.