TWM449396U - Smart energy-storage system - Google Patents

Description

Smart energy storage system

This creation is about energy storage systems, especially an energy storage system with multiple control modes, which can effectively achieve a smart energy storage system that automatically regulates the supply of electricity and storage of electrical energy.

Electrical energy is the cornerstone of modern life and the driving force of economic development, whether it is the traditional industries of the past (such as printing houses, textile mills, steel mills, petrochemical plants, etc.) or emerging high-tech industries (such as : Semiconductor factories, LCD panel factories, etc.) All use electricity as power to start production and operation of the entire production line or machine. Moreover, in every day of life, almost every household also needs to use electric energy (such as electric lights, electric water heaters, televisions, air conditioners, refrigerators, etc.), and in order to provide electricity to the above various industries or domestic electricity, There is a need for a power supply system for generating electrical energy and distributing the electrical energy to various load devices that require electrical energy.

However, the power generated by any power plant is limited. If the power supply needs to supply many power-consuming devices at the same time, or the power consumption of any power supply line is too large, the power plant will not be able to provide sufficient power immediately. The amount of electricity, in this way, will cause power outages due to insufficient power. If any of the above industries or domestic electricity uses no stable electricity to utilize or operate, it will cause great economic losses and great life. Inconvenient.

In order to prevent the power supply line from being supplied with many power-consuming load devices at the same time Startup, or the power consumption of any power supply line is too large, resulting in a sudden increase in power consumption, resulting in insufficient power. The power supply system will start more power generation modules to provide more power than the current power supply line. The large amount of backup power makes the power generated not to be lacking, and ensures that the power supply system does not solve the problem of insufficient power due to the inability to immediately start more power generation modules, resulting in power failure.

However, this method extends another problem, that is, the spare power generated by the power generation module and not used by the power supply line cannot be stored or used for other purposes, which will cause waste of the backup power in the long run, and because of the The increase in the cost of electricity caused by the waste of spare power is very uneconomical, and in order to generate the backup power, it will consume more power generation resources and will not meet the stricter environmental protection requirements.

For example, suppose that a city has a total electricity consumption of 10 million watts in the summer when the ionization peak is used, and the total electricity consumption in the electricity peak is 15 million watts. The electricity required by the city is a firepower in the suburbs. Power plant to provide, the thermal power plant is set up with a total of 20 sets of generator sets, a group of generator sets can emit 1 million watts of electricity, so the thermal power plant in the evening ionization peak time originally only need to open ten The generator set of the group can supply 10 million watts of electricity, but in order to prevent the residents of the city from turning on the air-conditioner with large power consumption at the same time, the total electricity consumption exceeds 10 million watts, or In order to prevent the generator set from warming up when the ionization peak period is ready to enter the power spike period, it is too late to supply the extra 5 million watts of electricity, making it impossible for the thermal power plant to open more generator sets for sufficient supply. Electricity, causing problems with power jumps and power outages, Then there is a public complaint.

Therefore, the thermal power plant still needs to open fifteen groups of generator sets during the ionization peak time, and increase the total power supply to 15 million watts to use the excess 5 million watts for backup power to effectively prevent the sudden increase of total power consumption. More than 10 million watts, causing power outages, but the extra 5 million watts of spare power is not always used, or even not used at all, but the thermal power plant has not been able to make other use of the backup power Or the stored equipment, the backup power will be wasted, the long-term, wasted waste of the electricity cost can only be added to all consumers, very uneconomical, and the thermal power plant to increase power generation Opening more generator sets not only consumes more power generation resources, but also causes more pollution and damage to the environment (such as air quality pollution, damage to rivers and oceans caused by warm water discharge, etc.).

Based on the above problems, the concept of microgrid is proposed. The future grid will connect decentralized power generation equipment, including solar energy, wind power and fuel cells, and form a microgrid system. This microgrid system can be both large and large. The grids operate in parallel and can also operate independently. In the construction of the microgrid, some problems have been encountered. For example, in the most promising solar and wind power generation, the power supply quality of the large power grid may be affected due to unstable output. Therefore, current factories, offices and residential buildings use energy storage systems as backup power sources. The energy of energy storage systems can usually be obtained by utility power or electric energy generating devices (solar cells or/and wind turbines), so that the energy of the energy storage system is It can be used by the load when the utility power is insufficient or when the power is cut off. However, the existing energy storage system is only in the mains When it is insufficient, it will be switched. It is impossible to adjust the power supply/storage mode of the energy storage system through time control or power. This will not only reduce the waste of electricity, but also increase the waste of energy storage components in the energy storage system, forming another environmental pollution.

Therefore, how to design an energy storage system that can automatically adjust the power supply/storage mode, reduce power waste and be more environmentally friendly is an urgent task that needs to be solved urgently.

In view of this, in order to solve the above shortcomings, the existing energy storage system cannot have the effect of automatically adjusting the power supply/storage mode and reducing the waste of power, which not only causes obstacles in industrial development but also inconvenience in life, and will also lead to energy utilization. Great loss, and environmental pollution, therefore, the purpose of this creation is to provide a smart energy storage system, providing a variety of control modes to automatically adjust the power supply / energy storage mode and reduce the waste of energy storage system.

To achieve the above objective, the present invention provides a smart energy storage system, comprising: an energy storage component for storing electrical energy; a charging module connected to the AC power of the commercial power, for converting electrical energy to the energy storage component, and the A first control switch is disposed between the charging module and the AC power connection, thereby controlling the time and timing of converting the stored electrical energy to the energy storage component; a power conversion module is electrically connected to the energy storage component for converting the storage The power of the component can be connected to the external load, and the power conversion module is connected to the AC power of the mains, and a second control switch is disposed between the power conversion module and the AC power connection; an electric energy generating device transmits a third control The switch is electrically connected to the energy storage component for storing the generated electrical energy to the energy storage component; and a selection control module is configured to control the first control switch, the second control switch and the third control switch Disconnected and turned on.

Wherein, the electric energy generating device is used for one or both of the solar power generating device and the wind power generating device.

The selection control module is electrically connected to a control panel for controlling the selection control module; and the selection control module is electrically connected to a connection device, and the user can directly connect through the computer or through the remote network. The road controls the selection control module.

The energy storage component is electrically connected to a power detecting device, and transmits the detection result to the selection control module, and the selection control module is configured to switch the AC power supply of the commercial power or the load of the energy storage component to the outside. .

The selection control module includes a timing mode, a normal power saving mode, and a forced charging mode; the timing mode sets a time for starting the power supply by the energy storage component; and the normal power saving mode detects only the energy of the energy storage component. And if there is no AC power supply, when the energy storage component is higher than the set value and the AC power of the commercial power source cannot supply power, the energy storage component supplies power; the forced charging mode is superior to the timing mode and the normal power saving mode, and the startup is started. After the forced charging mode, the charging is terminated after the energy of the energy storage element reaches the set value or the time set by the charging.

The advantage of this creation is that the energy storage system provides a variety of control modes to automatically adjust the power supply/storage mode and reduce the waste of energy storage system, and is easy to use and can be used as a point of the micro grid. With distributed power generation equipment, such as solar power, wind power, tidal power and fuel cells, it can operate in parallel with the large grid or independently.

The drawings and specific implementation methods of the intelligent energy storage system of this creation are listed to assist the patent examination committee to understand the technical characteristics and contents of this creation. Please refer to the following statement: Please refer to Figure 1 for the creation. System schematic. The present invention provides a smart energy storage system, comprising: an energy storage component 100 for storing electrical energy; a charging module 200 connected to the commercial AC power supply 300 for converting electrical energy to the energy storage component 100, and the charging The module 200 is connected to the AC power supply 300 to provide a first control switch 210. A power conversion module 400 is electrically connected to the energy storage component 100 for converting the energy of the energy storage component 100 to the external load 500. The power conversion module 400 is connected to the AC power supply 300 of the mains, and a second control switch 410 is disposed between the power conversion module 400 and the AC power supply 300. An electric energy generating device 600 is electrically connected to the third control switch 610. The energy storage device 100 is configured to store the electrical energy generated by the electrical energy generating device 600 to the energy storage device 100, and the electrical energy generating device 600 is used for one or both of the solar power generating device and the wind power generating device; The selection control module 700 is configured to control the opening and conducting of the first control switch 210, the second control switch 410, and the third control switch 610.

The energy storage device 100 is electrically connected to a power detecting device 800. The detection result is transmitted to the selection control module 700, and the selection control module 700 is provided to switch the AC power supply 300 from the mains or the load 500 that is supplied to the outside by the energy storage element 100.

Referring to FIG. 2 and FIG. 3 , the first control switch 210 , the second control switch 410 and the third control switch 610 can be implemented as single relays respectively, and the relays are controlled by a program controller or a microcomputer. In practice, the functions and actions of the first control switch 210 and the second control switch 410 can also achieve the same purpose of disconnecting and conducting the two switching elements. The first control switch 210 can be connected in parallel. A switch 211 and a first relay 212 are replaced, and the second control switch 410 can also be replaced by a second switch 411 and a second relay 412 connected in parallel to complete the required actuation relationship.

The selection control module 700 is electrically connected to a control panel 710. The user can control the selection control module 700 by the control panel 710. The selection control module 700 can be electrically connected to a connection device 720 (as shown in the figure). 3), the user can control the selection control module 700 through a computer direct connection (or network connection).

The selection control module 700 includes a timing mode, a normal power saving mode, and a forced charging mode, and the operation modes thereof are as follows:

I. Timing mode: The timing mode sets the time when the energy storage component 100 supplies power; in the timing mode, the power setting time of the energy storage component 100 is started using the customer setting, for example, at 10 o'clock in the morning, from the control panel. Setting the startup time on 710 to AM10:00; then setting the power storage mode of the energy storage component 100 to be turned off, The time to jump back to the AC power supply mode of the AC power supply, for example, 11:00 am, set the shutdown time from the panel to AM11:00. After the setting is confirmed, unless it is reset, the energy storage mode of the energy storage component 100 is started every day until 10:00 in the morning; at 11:00 in the morning, the power supply mode of the energy storage component 100 is turned off, and the power supply mode of the AC power supply 300 is jumped back. However, after the timing mode is turned on, when the energy storage device 100 is powered, if the energy storage device 100 is lower than the set power (eg, 48V), even if the energy storage device 100 is powered. If it is not over, you must also jump back to the AC power supply 300 mode of the mains.

When a power outage is encountered in the timing mode: 1. If the power outage time is within the powering period of the energy storage component 100 set by the timing mode, then the power storage mode of the energy storage component 100 is already switched, when the timing mode time is over. After that, the AC power supply 300 mode of the commercial power should be cut back, but since the AC power supply 300 does not exist, the power storage mode of the energy storage component 100 is continued to be discharged until the power storage voltage of the energy storage component 100 reaches a shutdown voltage (for example, a voltage of 48 V). After switching back to AC power 300 mode, the system shuts down. After the utility power resumes power supply, the system restarts and returns to the normal timing mode; if the utility power has not resumed power supply, the energy storage component 100 can perform energy storage by the power generated by the power generation device 600, and when the energy storage component 100 recovers After the set startable voltage, the system restarts and returns to the energy storage mode of the energy storage component 100. 2. If the power outage time is outside the power supply mode of the energy storage component 100 set in the timing mode, then automatically switch to the power storage mode of the energy storage component 100, and continue to discharge to the energy storage component 100 (voltage) After the shutdown voltage (for example, voltage 48V) is reached, and the AC power supply 300 mode is switched back, the system is shut down. After the utility power resumes power supply, the system restarts and returns to the normal timing mode; if the utility power has not resumed power supply, the energy storage component 100 can perform energy storage by the power generated by the power generation device 600, when the energy storage component 100 is charged. After returning to the set startable voltage, the system restarts and returns to the energy storage mode of the energy storage component 100.

Second, the usual power saving mode: the usual power saving mode only detects the energy of the energy storage component 100 and the presence or absence of the AC power supply 300, when the energy storage component 100 is higher than the set value (for example, the voltage rises to 56V), automatically switches The energy storage mode of the energy storage element 100 is reached; when the energy storage element 100 is lower than the set value (for example, the voltage is discharged to 51V), the mode is automatically switched to the AC power supply 300 mode. When power failure is encountered in the AC power supply 300: 1. If the power outage time is during the power supply mode of the energy storage component 100, then the power storage mode of the energy storage component 100 has been switched, and the energy storage component 100 continues to discharge to the storage. The energy (voltage) of the energy component 100 reaches the shutdown voltage (for example, voltage 48V), and then switches back to the AC power supply 300 mode, and the system is shut down. After the utility power resumes power supply, the system restarts and returns to the normal normal power saving mode; if the utility power has not resumed power supply, the energy storage component 100 can be stored by the power generated by the power generating device 600, when the energy storage component 100 After the power is raised to the set startable voltage, the system is restarted and returns to the energy storage mode of the energy storage component 100. 2. If the power failure time is during the AC power supply 300 mode, the power storage element 100 is automatically switched to the power supply mode, and the energy storage component 100 continues to discharge until the energy storage component 100 reaches the power supply (voltage). After the voltage (for example, voltage 48V) is switched back to the AC power supply 300 mode, the system is shut down. After the utility power resumes power supply, the system restarts and returns to the normal normal power saving mode; if the utility power has not resumed power supply, the energy storage component 100 can be stored by the power generated by the power generating device 600, when the energy storage component 100 After the power is raised to the set startable voltage, the system is restarted and returns to the energy storage mode of the energy storage component 100.

3. Forced charging mode: The forced charging mode is superior to the timing mode and the usual power saving mode. After the forced charging mode is activated, the power of the energy storage component 100 reaches a set value (for example, the voltage rises to 55V) or is The charging is completed after the set time of charging (for example, charging is completed after 8 hours of charging).

Combining the foregoing creation structure and mode, the main conditions of the creation application are as follows: 1. The ionization peak time can be used for charging, and the charging module 200 can be set to connect to the AC power supply 300 of the commercial power to charge the energy storage component 100; The energy storage element 100 is forced to discharge during the electrical spike period (timing mode); 3. when the energy storage element 100 is less than half (or lower than a predetermined capacitance), the AC power supply 300 of the commercial power supply is supplied to the load 500. (Normal power saving mode); 4. If there is a need to charge at any time, such as short-term mains recovery after power failure, the system can be forced to charge outside the normal charging time (off-peak time) (forced charging mode).

In the following description, the first control switch 210 is turned off and on, and the first switch 211 and the first relay 212 are turned off and on as an illustrative example, and the second control switch 410 is turned off and on to the second switch. The disconnection and conduction of 411 and second relay 412 are illustrative examples.

According to the foregoing main conditions of the present application, the selection control module 700 controls the first switch 211 to be turned on during the ionization peak time, and the charging module 200 is connected to the AC power supply 300 of the mains to charge the energy storage element 100; The energy storage element 100 is higher in power than the set value, and the first relay 212 is turned off and is no longer charged. The action of the first switch 211 and the first relay 212 can be achieved by the first control switch 210 to achieve the same function and purpose.

The selection control module 700 controls the second switch 411 to be turned off at the power spike time to force the energy storage device 100 to discharge; and at other times, the second switch 411 is turned on, and can be powered by the commercial AC power source 300 to the load 500. The selection control module 700 controls the second relay 412 when the energy storage component 100 is less than half of the amount of power (or is lower than a predetermined capacitance), and the second relay 412 is turned on, and the AC power of the commercial power source is turned on. 300 is supplied to the load 500; and when the energy storage element 100 is charged above a set value (eg, the voltage is raised to 56V), the second relay 412 is turned off and can be powered by the energy storage element 100. The actions of the second switch 411 and the second relay 412 can be achieved by the second control switch 410 to achieve the same function and purpose.

The selection control module 700 controls the third control switch 610. When the energy storage element 100 is higher than the set value (for example, the voltage is raised to 56V), the third control switch 610 is turned off, and the power generating device 600 does not. The energy storage component 100 is charged again; and when the energy storage component 100 is lower than the set value (eg, the voltage drops to 52.8V), the third control switch 610 is turned on, and the power generating device 600 charges the energy storage component 100. .

The present invention has been disclosed in the above preferred embodiments, and it should be understood by those skilled in the art that the present invention is only intended to depict the present invention and should not be construed as limiting the scope of the present invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application below.

100‧‧‧ energy storage components

200‧‧‧Charging module

210‧‧‧First control switch

211‧‧‧ first switch

212‧‧‧First relay

300‧‧‧AC power supply

400‧‧‧Power Conversion Module

410‧‧‧Second control switch

411‧‧‧second switch

412‧‧‧Second relay

500‧‧‧load

600‧‧‧Electrical energy generator

610‧‧‧ Third control switch

700‧‧‧Selection control module

710‧‧‧Control panel

720‧‧‧Connecting device

800‧‧‧Charge detection device

Figure 1 is a schematic diagram of the system implemented by the author.

2 is a schematic diagram of another system of the present invention.

FIG. 3 is a schematic diagram of another system implemented by the present invention.

100‧‧‧ energy storage components

200‧‧‧Charging module

210‧‧‧First control switch

300‧‧‧AC power supply

400‧‧‧Power Conversion Module

410‧‧‧Second control switch

500‧‧‧load

600‧‧‧Electrical energy generator

610‧‧‧ Third control switch

700‧‧‧Selection control module

710‧‧‧Control panel

800‧‧‧Charge detection device

Claims (10)

A smart energy storage system, comprising: an energy storage component for storing electrical energy; a charging module connected to a mains AC power source for converting electrical energy to the energy storage component, and the charging module and the alternating current A first control switch is disposed between the power connection; a power conversion module electrically connected to the energy storage component for converting the energy of the energy storage component to an external load, and the power conversion module is connected to the power supply An AC power supply, and a second control switch is disposed between the power conversion module and the AC power connection; an electric energy generating device is electrically connected to the energy storage component through a third control switch for storing the generated electric energy to The energy storage component; and a selection control module for controlling disconnection and conduction of the first control switch, the second control switch, and the third control switch. The intelligent energy storage system according to claim 1, wherein the electric energy generating device is used for one or both of a solar power generating device and a wind power generating device. The smart energy storage system of claim 1, wherein the selection control module is electrically connected to a control panel for controlling the selection control module. The smart energy storage system of claim 1, wherein the selection control module is electrically connected to a connection device. The intelligent energy storage system of claim 1, wherein the energy storage component is electrically connected to a power detecting device, and the detecting node is detected. The result is passed to the selection control module. The smart energy storage system of claim 1, wherein the selection control module comprises a timing mode, a normal power saving mode, and a forced charging mode. The intelligent energy storage system of claim 6, wherein the timing mode sets a time when the energy is supplied by the energy storage component. For example, in the intelligent energy storage system described in claim 6, wherein the usual power saving mode detects only the energy of the energy storage component and whether there is AC power, when the energy storage component is higher than the set value, and the utility power When the AC power source cannot supply power, the energy storage component supplies power. The smart energy storage system of claim 6, wherein the forced charging mode is superior to the timing mode and the normal power saving mode, and after the forced charging mode is activated, the power of the energy storage component reaches a set value. After the end of charging. The smart energy storage system of claim 9, wherein the forced charging mode ends charging after the time when the energy storage element is charged.