JPH09191579A - Outdoor integrated type power generating equipment utilizing solar energy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of integrated type storage boxes by storing at least a main current collecting device, an a.c./d.c. converter, a distribution board, a linking protective device, and a data collector in one integrated type storage box. SOLUTION: A plurality of sub current collecting boxes 103... are connected to one integrated type storage box 110, and a plurality of solar cells 12... are connected to the respective subcurrent collecting boxes 103. Power is supplied to the integrated type storage box 110 from an incoming linel through a storage box 101 for watthour meter and so on. A day & night illumination 7, a night illumination 10, 10, an actinometer 22, a thermometer and a data transmission line 25 are connected to the integrated type storage box 110. The integrated type storage box 110 is connected to the storage box 101 for watthour meter and so on and the sub-current collecting boxes 103 respectively through a wiring junction terminal. It is thus possible to attain manufacture at a lower cost than a plurality of storage boxes for cost reduction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor integrated solar energy-utilizing power generation facility in which electric power generated by a solar cell is connected to a power system and supplied to a load in a facility.

[0002]

2. Description of the Related Art Outdoor integrated solar energy-utilizing power generation equipment that connects a large number of solar cells to an electric power system to supply electric power to a load in the facility has been widely used in response to the recent demand for power saving. It's starting to happen. Such an outdoor integrated solar energy-utilizing power generation facility, during the daytime when a sufficient amount of solar radiation is obtained, mainly covers the power consumption of the load in the facility by the power generated by the solar cells, and at night when the amount of solar radiation is insufficient. Will be supplied with power from the power grid. In addition, this outdoor integrated solar energy utilization power generation facility,
When the amount of power generated by the solar cells is sufficient, surplus power that cannot be consumed in the facility may be returned to the power system.

FIG. 5 shows a structural example of the outdoor integrated solar energy utilizing power generation facility. The power system is a service line 1
Is supplied to the bus bar 5 through the two electric meters 2 and 3 and the outdoor switch 4. One watt-hour meter 2 is a watt-hour meter that measures the amount of power supplied from the power grid, and the other watt-hour meter 3 is a watt-hour meter that measures the amount of power sent back to the power grid side. The bus bar 5 has a wiring breaker (MCC
B) Day and night lighting 7 is connected via 6 and night lighting 10, 1 is connected via wiring breaker 8 and electromagnetic contactor 9.
0 is connected. The wiring breakers 6 and 8 are overcurrent breakers (breakers) for cutting off an overcurrent at the time of an overload or short circuit accident. The electromagnetic contactor 9 is a daylight sensor 1
It is a relay controlled by 1 and turns on at night
Then, the night lights 10, 10 are automatically turned on. The daytime / nighttime illumination 7 and the nighttime illuminations 10 and 10 are loads in the facility illustrated here.

A large number of solar cells 12 ... Are installed outdoors or on the roof of the facility. Each solar cell 12 is composed of a semiconductor element array of solar cells that generate DC power according to the amount of solar radiation. And these many solar cells 12 ...
Are, for example, appropriately grouped for each installation position (in the figure, an example in which they are grouped into three groups is shown), and are respectively connected to the sub-current collectors 13 provided for each group. The output of each sub-collector 13 ... Is connected to one main collector 14. Each sub-collector 13 is a current collector that collects the power generated by the plurality of solar cells 12 ... In one direction and outputs the power. The main current collector 14 outputs the power output by the plurality of sub-collectors 13. Is a current collector that collects electricity in one direction and outputs it.

Sub-current collector 1 is generated by the solar cells 12 ...
.. and the DC power collected by the main current collector 14 are converted into AC power by the inverter 15 and supplied to the bus bar 5 through the grid interconnection protection device 16 and the wiring breaker 17. There is. The inverter 15 is a static DC / AC converter using a semiconductor element. The grid interconnection protection device 16 includes various protective relays that protect the inverter 15 and the like by blocking the line when the power system is abnormal.
The wiring breaker 17 is an overcurrent breaker similar to the wiring breakers 6 and 8.

On the input / output line of the inverter 15,
DC side and AC side power detection devices 18, 18 are provided,
The voltage value and current value detected by these power detection devices 18, 18 are sent to the data collection device.
The data collecting device includes a data measuring device 19, a data processing device 20, and a printer 21. Data measuring device 19
Measures the input power on the DC side and the output power on the AC side of the inverter 15 based on the voltage value and the current value detected by the power detection devices 18, 18. In addition, this data measuring device 1
9 also measures the amount of solar radiation and the temperature by a pyranometer 22 and a thermometer 23 arranged near the installation position of the solar cells 12.
Each data measured by the data measuring device 19 can be sent to the data processing device 20 and temporarily stored therein, and can be printed by the printer 21 as appropriate. The data processing device 20 is an arithmetic processing storage device including a personal computer or the like. Further, the measurement data stored in the data processing device 20 can be sent to the data transmission device 24 and can be sent to the outside via the data transmission line 25 such as a public telephone line.

The data measuring device 19, the data processing device 20, and the printer 21 in the data collecting device are provided with an uninterruptible power supply (UPS).
Power is supplied from 26. Further, the data transmission device 24 is also supplied with power from the uninterruptible power supply device 26 via the transformer 27. The uninterruptible power supply 26 is a wiring breaker 2 during normal operation.
By charging the internal storage battery with the electric power supplied from the bus bar 5 via 8, the power of this storage battery is converted into alternating current and supplied to each device in the event of a power failure.

In the conventional outdoor integrated solar energy utilizing power generation facility having the above-mentioned structure, each device is divided into functional groups and stored in separate storage boxes (outdoor cabinets). That is, the watt-hour meters 2 and 3 and the outdoor switch 4 are stored in the storage box 101 such as the watt-hour meter, and the bus bar 5, the circuit breakers 6, 8, 17, 28, the electromagnetic contactor 9, and the daylight sensor 1 are stored.
1 is stored in the distribution board 102. In addition, the plurality of sub-collectors 13 are housed in the sub-collector boxes 103, the main collector 14 is housed in the main collector box 104, and the inverter 15 is installed.
Is stored in the inverter storage box 105, and the system interconnection protection device 16 is stored in the system interconnection protection device storage box 106. Further, the data measuring device 1 in the data collecting device
9, the data processing device 20 and the printer 21 are housed in the data collection device housing box 107, and the data transmission device 24 is
It is stored in the data transmission device storage box 108, and the uninterruptible power supply 26 is stored in the uninterruptible power supply storage box 109.

Therefore, as shown in FIG. 6, the conventional outdoor integrated solar energy utilizing power generation facility has a large number of storage boxes 1.
01 to 109 are separately installed outdoors, and each storage box 101
Up to 109 were respectively connected by the weatherproof cable 201 via the wiring relay terminals.

[0010]

However, in the conventional outdoor integrated solar energy-utilizing power generation facility, each device is stored in many storage boxes 101 to 109.
There is a problem that the cost of these cabinets becomes high. Moreover, when trying to operate a plurality of devices for maintenance or the like, a plurality of storage boxes 10 installed in different places
There is also a problem that it is necessary to open 1 to 109, which makes this operation inconvenient. Also, many storage boxes 101-109
There is also a problem that the installation work at the time of carrying in and installing becomes troublesome because it is necessary to install the cable and perform complicated wiring by the cable 201 on site. Further, in order to connect many storage boxes 101 to 109, a large number of wiring relay terminals and cables 201 are required, and there has been a problem that the cost of them increases.

The present invention has been made in view of the above circumstances, and an outdoor integrated solar in which the number of storage boxes is reduced by housing the devices of a plurality of functional groups in one integrated storage box. The objective is to provide light energy-utilizing power generation equipment.

[0012]

That is, the present invention, in order to solve the above problems, a plurality of solar cells installed outdoors, and the plurality of solar cells are appropriately grouped into groups,
A plurality of sub-current collectors that respectively collect the generated power of the solar cells of each set, a main current collector that further collects the power collected by the plurality of sub-current collectors, and the main current collector A DC / AC converter for converting DC power into AC power, a distribution board for linking the DC / AC converter and AC power supplied from the power grid to distribute to each load, and a DC / AC converter Connection protection device that protects the AC power when it is connected to the power system, a data collection device that monitors the power generation status of the solar cell, and the power generation status data obtained by the data collection device is transmitted to the outside. In the outdoor integrated solar energy-utilizing power generation facility including a data transmission device that performs the above, and an uninterruptible power supply device that supplies power to the data collection device and the data transmission device, at least a main current collector and a DC / AC converter Distribution board and interconnection protection Wherein the location and data collection system is housed in one integrated-type storage box integrated.

Also, the plurality of sub-collectors are stored in the integrated storage box.

Further, a plurality of solar cells installed outdoors, a current collector for collecting power generated by the plurality of solar cells, and a DC / AC converter for converting DC power collected by the current collector into AC power. A device, a distribution board for connecting the DC / AC converter and AC power supplied from the power grid to distribute to each load, and AC power supplied from the DC / AC converter to the power grid. In the case of an interconnection protection device that protects
A data collection device that monitors the power generation status of the solar cell, a data transmission device that transmits the data of the power generation status obtained by the data collection device to the outside, and a power supply to the data collection device and the data transmission device. In an outdoor integrated solar energy utilization power generation facility including a power failure power supply device, at least one current collector, DC / AC converter, distribution board, interconnection protection device, and data collection device integrated It is characterized by being stored in a shape storage box.

Further, the uninterruptible power supply device is stored in the integrated storage box.

According to the means of (1), at least the main collector, the DC / AC converter, the distribution board, the interconnection protection device and the data collecting device are housed in one integrated storage box, It is not necessary to provide a large number of storage boxes for each of these devices. Moreover, even when operating multiple devices,
Operation is convenient because you only have to open the individual storage boxes. Further, in the field, since it is only necessary to carry in and install one integrated type storage box in which a plurality of already wired devices are stored, the installation work becomes extremely easy. Further, it is not necessary to connect the respective devices using expensive wiring relay terminals and cables.

According to the above means, since the plurality of sub-collectors are also housed in the same integrated storage box as the main current collector and the like, the effect of saving the storage box and cables and the operability and Installation workability can be further improved.

Further, according to the above means, the present invention can be similarly applied to an outdoor integrated solar energy utilizing power generation facility in which a plurality of sub-current collectors are combined into one main current collector. .

Further, according to the means, since the uninterruptible power supply is also housed in the same integrated storage box as the data collection device and the like, there is an effect of saving the storage box and cables, operability and installation. Workability can be further improved.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

1 and 2 show a first embodiment of the present invention. FIG. 1 is a block diagram showing the equipment configuration of an outdoor integrated solar energy utilizing power generation facility, and FIG. 2 is an outdoor integrated type. It is a block diagram which shows the connection of each storage box of solar energy utilization power generation equipment. It should be noted that constituent members having the same functions as those of the conventional example shown in FIGS. 4 and 5 are denoted by the same reference numerals and the description thereof will be omitted.

In this embodiment, an outdoor integrated solar energy-utilizing power generation facility having the same equipment configuration as the conventional example shown in FIG. 4 will be described. As shown in FIG. 1, this outdoor integrated solar energy-utilizing power generation facility stores watt-hour meters 2 and 3 and an outdoor switch 4 in a storage box 101 such as a watt-hour meter as in the conventional example. The plurality of sub-collectors 13 ... Are housed in the sub-collector boxes 103, respectively.

However, in the outdoor integrated solar energy utilizing power generation equipment of this embodiment, the bus bar 5, the wiring breakers 6, 8, 17, 28 and the electromagnetic contactor 9 which are conventionally housed in the distribution board 102 are used. Also, the daylight sensor 11, the main current collector 14 which is conventionally stored in the main current collection box 104, and the conventional inverter storage box 1
The inverter 15 housed in 05 and the system interconnection protection device 1 stored in the conventional system interconnection protection device storage box 106
6, the data measuring device 19, the data processing device 20, and the printer 21 which are conventionally stored in the data collection device storage box 107, the data transmission device 24 which is conventionally stored in the data transmission device storage box 108, and the conventional uninterruptible power supply. Power supply storage box 1
The uninterruptible power supply 26 stored in 09 is stored in one integrated storage box 110. Integrated storage box 110
Is a storage box (outdoor cabinet) formed of a single integrated housing.

The integrated storage box 110 accommodates the inverter 15, the uninterruptible power supply 26, the data processing device 20 and the like, which are sources of noise, so that the noise causes other devices and data processing. The device 20 or the like malfunctions, or the data transmission line 2 of the data transmission device 24
It is necessary to take measures against noise in the storage box so that noise will not be mixed into the storage box 5. As measures against such noise, there are measures such as placing devices that are particularly susceptible to noise as far apart as possible, and providing an electromagnetic shield between the devices. Further, since a plurality of devices are stored in the integrated storage box 110, it is necessary to design the internal shape of the box so as not to cause confusion when operating these devices.
Further, since devices having a large amount of heat generation such as the inverter 15 and the data processing device 20 coexist, heat dissipation measures for these devices are taken, and dust-proof measures are taken especially for the data processing device 20 and the like which are particularly sensitive to intrusion of fine dust. It is also necessary to give it.

As shown in FIG. 2, the outdoor integrated solar energy utilizing power generation equipment having the above structure is connected to a plurality (three in the figure) of sub-collection boxes 103 ... In one integrated storage box 110. In addition, a plurality of solar cells 12 are provided in each sub-collection box 103.
... will be connected. Further, the electric power system is supplied from the service line 1 to the integrated type storage box 110 via the storage box 101 such as an electric energy meter. The integrated storage box 110 is connected with the daytime / nighttime illumination 7, the nighttime illuminations 10, 10, the pyranometer 22, the thermometer 23, and the data transmission path 25. These integrated storage boxes 110 and storage boxes for electric energy meters 1
01 and each sub-collection box 103 are connected by a cable 201 via wiring relay terminals.

As a result, in the outdoor integrated solar energy utilizing power generation equipment of this embodiment, the integrated storage box 110 is generally larger than each conventional storage box, but it is different from a plurality of storage boxes. Since it can be manufactured at low cost, the cost of this storage box can be reduced. In addition, at the installation site of the outdoor integrated solar energy utilization power generation equipment, except for the storage box 101 such as the watt-hour meter and the sub-collection box 103 ..., only this one integrated storage box 110 is brought in and installed. Therefore, the installation work becomes extremely easy. Moreover, since a plurality of devices housed in the integrated storage box 110 can be pre-wired in a factory assembling process or the like, not only the wiring work at the site becomes easy, but also the wiring relay terminal and the cable. The amount of 201 used can be reduced, and the cost can be reduced accordingly. Further, at the time of installation or maintenance, most of the equipment can be operated by simply opening one integrated storage box 110 while staying in the same place, so that the operability of the operator can be improved. You can

In this embodiment, the integrated type storage box 11 is used.
The uninterruptible power supply 26 is also housed together with the uninterruptible power supply 26, but the uninterruptible power supply 26 can be separated and housed in the uninterruptible power supply storage box 109 as in the conventional case.

FIGS. 3 and 4 show a second embodiment of the present invention. FIG. 3 is a block diagram showing the equipment structure of an outdoor integrated solar energy utilizing power generation facility, and FIG. 4 is an outdoor integrated type. It is a block diagram which shows the connection of each storage box of solar energy utilization power generation equipment. The components having the same functions as those of the first embodiment shown in FIGS. 1 and 2 and the conventional example shown in FIGS. 4 and 5 are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, an outdoor integrated solar energy utilizing power generation facility having the same equipment structure as that of the first embodiment shown in FIG. 1 will be described. This outdoor integrated solar energy
As shown in FIG. 3, the utilization power generation equipment uses a large-scale integrated storage box 111 instead of the integrated storage box 110 of the first embodiment. The large-scale integrated storage box 111 stores a plurality of sub-current collectors 13 ... In addition to the devices stored in the integrated storage box 110 of the first embodiment. Large-scale integrated storage box 1
Reference numeral 11 is a storage box formed of a single casing that is integrated like the integrated storage box 110.

Therefore, this outdoor integrated solar energy
In the utilization power generation equipment, as shown in FIG. 4, a large number of solar cells 12 ... Are directly connected to one large-scale integrated storage box 111. Further, the power system is supplied from the service line 1 to the large-scale integrated storage box 111 via the storage box 101 such as an electric energy meter. And, in this large-scale integrated storage box 111, day and night lighting 7, night lighting 10, 10, pyranometer 22,
The thermometer 23 and the data transmission line 25 are connected. The large-scale integrated storage box 111 and the storage box 101 such as an electric energy meter
The cable 201 is connected via a wiring relay terminal.

As a result, the outdoor integrated solar energy utilizing power generation equipment of this embodiment does not require the plurality of sub-collector boxes 103 shown in the first embodiment, so that the cost of the storage box can be reduced and the cable can be used. The cost reduction effect due to the reduction of the amount of 201 or the like used can be further enhanced. Moreover, installation workability and operability can be further improved.

[0032]

As is apparent from the above description, according to the outdoor integrated solar energy utilizing power generation facility of the present invention, a plurality of devices are collectively stored in a single integrated storage box. Costs can be reduced by eliminating the need for a large number of storage boxes and cables for wiring between the storage boxes. In addition, it is possible to improve the operability when operating a plurality of devices and the installation workability of the storage box.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention and showing a device configuration of an outdoor integrated solar energy utilizing power generation facility.

FIG. 2 is a block diagram showing the first embodiment of the present invention and showing the connection of the storage boxes of the outdoor integrated solar energy utilizing power generation equipment.

FIG. 3 is a block diagram showing a second embodiment of the present invention and showing a device configuration of an outdoor integrated solar energy utilizing power generation facility.

FIG. 4 is a block diagram showing the second embodiment of the present invention and showing the connection of the storage boxes of the outdoor integrated solar energy utilizing power generation equipment.

FIG. 5 is a block diagram showing a conventional example, which is a device configuration of an outdoor integrated solar energy-utilizing power generation facility.

[Fig. 6] Fig. 6 is a block diagram showing a conventional example and showing a connection of respective storage boxes of an outdoor integrated solar energy utilizing power generation facility.

[Explanation of symbols]

 12 solar battery 13 sub-collector 14 main collector 15 inverter (DC / AC converter) 16 grid interconnection protection device 19 data measuring device (data collecting device) 20 data processing device (data collecting device) 21 printer (data collecting device) 24 data transmission device 26 uninterruptible power supply device 102 distribution board 110 integrated storage box 111 large-scale integrated storage box

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Takano 15-7-201, 6-1, Koyadai Nishi, Sugito-cho, Kitakatsushika-gun, Saitama Prefecture (72) Masaru Takai 4-10-Higashi-Funabashi, Funabashi-shi, Chiba 2-105 (72) Inventor Hiroshi Nishi 3-5 Kasumigaseki, Chiyoda-ku, Tokyo Within Showa Shell Sekiyu Co., Ltd. (72) Takayuki Ohashi No.1 Inobabacho, Nishinosho, Kichijoin, Minami-ku, Kyoto Japan Battery Co., Ltd.

Claims (4)

[Claims] 1. A plurality of solar cells installed outdoors, and a plurality of sub-collectors that appropriately classify the plurality of solar cells and collect power generated by the solar cells of each group. A main collector that further collects the electric power collected by the plurality of sub-collectors, a DC-AC converter that converts the DC power collected by the main collector into AC power, and the DC-AC converter A distribution board that interconnects AC power supplied from the power system to distribute to each load, and a grid protection device that protects when AC power supplied from the DC / AC converter is linked to the power system A data collection device that monitors the power generation status of the solar cell; a data transmission device that transmits the power generation status data obtained by the data collection device to the outside; and a power supply to the data collection device and the data transmission device. Outdoor integrated type with integrated uninterruptible power supply In the sunlight energy-utilizing power generation facility, at least the main current collector, the DC / AC converter, the distribution board, the interconnection protection device, and the data collection device are stored in one integrated storage box. Outdoor integrated solar energy-utilizing power generation facility. 2. The outdoor integrated solar energy utilization power generation facility according to claim 1, wherein the plurality of sub-collectors are housed in the integrated storage box. 3. A plurality of solar cells installed outdoors, a current collector for collecting power generated by the plurality of solar cells, and a DC / AC converter for converting DC power collected by the current collector into AC power. A device, a distribution board for connecting the DC / AC converter and AC power supplied from the power grid to distribute to each load, and AC power supplied from the DC / AC converter to the power grid. Connection protection device for protecting the power generation status, a data collection device for monitoring the power generation status of the solar cell, a data transmission device for transmitting the power generation status data obtained by the data collection device to the outside, and the data collection device And an outdoor integrated solar energy-utilizing power generation facility including an uninterruptible power supply that supplies power to the data transmission device, at least a current collector, a DC / AC converter, a distribution board, a link protection device, and a data collection device. Integrated with One outdoor integrated type solar energy, characterized in that it is housed in an integrated type storage box which - utilizing power generation equipment. 4. The outdoor integrated solar energy utilization power generation equipment according to claim 1, wherein the uninterruptible power supply is housed in the integrated storage box.