Energy storage monitoring system and control method thereof

Abstract

The present application discloses an energy storage monitoring system and a control method thereof. The energy storage monitoring system includes a central monitoring unit, N energy storage cabinets and N*M battery cabinets. The central monitoring unit communicates with external devices through a first real-time communication data link and a first non-real-time communication data link. The AC / DC bidirectional converter communicates with the central monitoring unit through a second real-time communication data link, and communicates with the energy storage monitoring unit through a second non-real-time communication data link. The energy storage monitoring unit communicates with the central monitoring unit through a third non-real-time communication data link, and communicates with the first battery cluster management unit and the second battery cluster management unit through a fourth non-real-time communication data link. The first battery cluster management unit communicates with the second battery monitoring unit through a fifth non-real-time communication data link. The second battery cluster management unit communicates with the first battery monitoring unit through a sixth non-real-time communication data link. Thus, the energy storage monitoring system can have high reliability and scalability, and is easy to maintain.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage monitoring, and in particular to an energy storage monitoring system and a control method thereof. Background Art

[0002] As one of the key elements in industrial and commercial energy storage systems, the energy storage monitoring system mainly includes system communication architecture, system energy scheduling management, etc.

[0003] The architecture of the various parts in traditional industrial and commercial energy storage monitoring systems is complex, and there are abnormalities such as communication delays and communication data packet loss in the communication between the various parts, which may cause the energy storage monitoring system to shut down, with poor reliability and difficulty in maintenance. Summary of the invention

[0004] The present application aims to provide an energy storage monitoring system and a control method thereof, which can make the energy storage monitoring system have high reliability and scalability and be easy to maintain.

[0005] To achieve the above objectives, in a first aspect, the present application provides an energy storage monitoring system, comprising:

[0006] A central monitoring unit, a first real-time communication data link and a first non-real-time communication data link, wherein the central monitoring unit communicates with an external device via the first real-time communication data link and the first non-real-time communication data link;

[0007] N energy storage cabinets, a second real-time communication data link, a second non-real-time communication data link, a third non-real-time communication data link, a fourth non-real-time communication data link and a fifth non-real-time communication data link, N is an integer ≥ 1; the energy storage cabinet includes an AC / DC bidirectional converter, an energy storage monitoring unit, a first battery cluster management unit and a second battery monitoring unit, the AC / DC bidirectional converter communicates with the central monitoring unit through the second real-time communication data link, the AC / DC bidirectional converter also communicates with the energy storage monitoring unit through the second non-real-time communication data link, the energy storage monitoring unit also communicates with the central monitoring unit through the third non-real-time communication data link, the energy storage monitoring unit also communicates with the first battery cluster management unit through the fourth non-real-time communication data link, and the first battery cluster management unit also communicates with the second battery monitoring unit through the fifth non-real-time communication data link;

[0008] N*M battery cabinets, M is an integer ≥ 1; the battery cabinet includes a second battery cluster management unit, and the energy storage monitoring unit in one of the energy storage cabinets also communicates with the second battery cluster management units in the M battery cabinets through the fourth non-real-time communication data link;

[0009] A sixth non-real-time communication data link, the battery cabinet further comprises a first battery monitoring unit, and the second battery cluster management unit communicates with the first battery monitoring unit via the sixth non-real-time communication data link.

[0010] In an optional manner, the energy storage monitoring system further includes an on-grid and off-grid microcomputer device, an anti-backflow meter, a combiner cabinet metering meter, a combiner cabinet dehumidifier, a booster cabinet microcomputer device and a seventh non-real-time communication data link;

[0011] The central monitoring unit communicates with the on-grid and off-grid microcomputer device, the anti-backflow electric meter, the combiner cabinet metering electric meter, the combiner cabinet dehumidifier and the booster cabinet microcomputer device respectively through the seventh non-real-time communication data link.

[0012] In an optional manner, the energy storage monitoring system further includes an eighth non-real-time communication data link and a ninth non-real-time communication data link; the energy storage cabinet further includes a fire controller, a liquid cooling controller, a first combustible gas sensor, a first temperature and humidity sensor, and a first input and output interface acquisition unit;

[0013] The energy storage monitoring unit also communicates with the fire controller and the liquid cooling controller respectively through the eighth non-real-time communication data link;

[0014] The energy storage monitoring unit also communicates with the first combustible gas sensor, the first temperature and humidity sensor, and the first input and output interface acquisition unit respectively through the ninth non-real-time communication data link.

[0015] In an optional manner, the battery cabinet further includes a second combustible gas sensor, a second temperature and humidity sensor, and a second input and output interface acquisition unit;

[0016] The energy storage monitoring unit also communicates with the second combustible gas sensor, the second temperature and humidity sensor and the second input and output interface acquisition unit respectively through the ninth non-real-time communication data link.

[0017] In an optional manner, the real-time communication data link and the non-real-time communication data link in the energy storage monitoring system are both configured as dual-network redundancy of network A and network B, wherein the dual-network redundancy of network A and network B is to use network A for communication when network A is normal, and to use network B for communication when network A is abnormal.

[0018] In an optional manner, the real-time communication data link and the non-real-time communication data link in the energy storage monitoring system both include at least one of the following communication modes: Ethernet, RS485, EtherCAT, CAN and CAN FD.

[0019] In a second aspect, the present application provides a control method, which is applied to the energy storage monitoring system as described above, and the method comprises:

[0020] Receiving an electric energy dispatching instruction output by an external device communicating with the energy storage monitoring system;

[0021] Based on the electric energy dispatching instruction and the preset energy management strategy, the local electric energy dispatching instruction is output to the energy storage cabinet in the energy storage monitoring system, so that the energy storage cabinet outputs the corresponding voltage, current and power based on the local electric energy dispatching instruction.

[0022] In an optional manner, after receiving the electric energy scheduling instruction output by the external device, the method further includes:

[0023] Acquire first status information of the energy storage cabinet, wherein the first status information includes voltage, current, battery state of charge, battery health status, temperature and fault information;

[0024] Based on the power scheduling instruction, the preset energy management strategy and the first state information, a local power scheduling instruction is output to the energy storage cabinet, so that the energy storage cabinet outputs corresponding voltage, current and power based on the local power scheduling instruction.

[0025] In an optional manner, after outputting the local electric energy dispatching instruction to the energy storage cabinet, the method further includes:

[0026] Acquire second status information of the energy storage cabinet, wherein the second status information includes voltage, current, power, electricity, temperature and operating status;

[0027] The second state information is sent to the external device.

[0028] In a third aspect, the present application provides an energy storage monitoring system, comprising:

[0029] A central monitoring unit, the central monitoring unit comprising:

[0030] At least one processor and a memory communicatively connected to the at least one processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the at least one processor so that the at least one processor can execute the method as described above.

[0031] The beneficial effects of the present application are as follows: the energy storage monitoring system provided by the present application includes a central monitoring unit, a first real-time communication data link, a first non-real-time communication data link, N energy storage cabinets, a second real-time communication data link, a second non-real-time communication data link, a third non-real-time communication data link, a fourth non-real-time communication data link, a fifth non-real-time communication data link, N*M battery cabinets and a sixth non-real-time communication data link. Among them, the central monitoring unit communicates with external devices through the first real-time communication data link and the first non-real-time communication data link. The energy storage cabinet includes an AC / DC bidirectional converter, an energy storage monitoring unit and a first battery cluster management unit. The AC / DC bidirectional converter communicates with the central monitoring unit through the second real-time communication data link, the AC / DC bidirectional converter communicates with the energy storage monitoring unit through the second non-real-time communication data link, the energy storage monitoring unit communicates with the central monitoring unit through the third non-real-time communication data link, and the energy storage monitoring unit also communicates with the first battery cluster management unit through the fourth non-real-time communication data link. The first battery cluster management unit also communicates with the second battery monitoring unit through the fifth non-real-time communication data link. The battery cabinet includes a second battery cluster management unit, and the energy storage monitoring unit in one energy storage cabinet also communicates with the second battery cluster management units in M ​​battery cabinets through a fourth non-real-time communication data link. The battery cabinet also includes a first battery monitoring unit, and the second battery cluster management unit communicates with the first battery monitoring unit through a sixth non-real-time communication data link. Through the above method, it is possible to implement the design concept of adopting a modular architecture and a sub-link communication architecture, simplify the many components in the system, and implement modular management layer by layer. In addition, when a certain module is damaged, the system can still operate normally, which can make the energy storage monitoring system have high reliability and scalability, and is easy to maintain. At the same time, the dual-network communication architecture in which the real-time communication data link and the non-real-time communication data link operate separately and independently can improve the real-time performance of the system power scheduling and energy regulation, so as to further improve the reliability of the energy storage monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0033] Figure 1 A schematic diagram of the structure of the energy storage monitoring system provided in Example 1 of the present application;

[0034] Figure 2 A schematic diagram of the structure of the energy storage monitoring system provided in Example 2 of the present application;

[0035] Figure 3 A flow chart of a control method provided in Example 1 of the present application;

[0036] Figure 4 This is a schematic diagram of the structure of the central monitoring unit provided in Example 1 of the present application. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of the energy storage monitoring system provided in the embodiment of the present application. Figure 1 As shown, the energy storage monitoring system 100 includes a central monitoring unit 10, a first real-time communication data link L11, a first non-real-time communication data link L21, N energy storage cabinets, a second real-time communication data link L12, a second non-real-time communication data link L22, a third non-real-time communication data link L23, a fourth non-real-time communication data link L24, a fifth non-real-time communication data link L25, N*M battery cabinets and a sixth non-real-time communication data link L26, wherein N and M are both integers ≥ 1. It can be understood that when N and / or M is greater than 1, the implementation of each energy storage cabinet and battery cabinet is similar to that of the energy storage cabinet 11 and the battery cabinet 12, which is within the scope that can be easily understood by those skilled in the art and will not be repeated here.

[0039] Specifically, the central monitoring unit 10 communicates with the external device 200 through the first real-time communication data link L11 and the first non-real-time communication data link L21. In some embodiments, the central monitoring unit 10 is based on a computer and industrial control software as the control core, and realizes unified monitoring and management of various data in the energy storage monitoring system through network communication. Secondly, in an embodiment of the present application, each real-time communication data link (such as the first real-time communication data link L11) is used to transmit data in real time (for example, including various instructions, such as power instructions, etc.); each non-real-time communication data link (such as the first non-real-time communication data link L21) is used to transmit non-real-time communication data (such as voltage, current and temperature, etc.). The central monitoring unit 10 communicates with the external device 200 through the first real-time communication data link L11 and the first non-real-time communication data link L21, can receive instructions output by the external device 200, and can also send information in the energy storage monitoring system 100 to the external device 200.

[0040] The energy storage cabinet 11 includes an AC / DC bidirectional converter (in this embodiment, K AC / DC bidirectional converters are taken as an example, K is an integer ≥ 1), an energy storage monitoring unit 111, a first battery cluster management unit 112 and a second battery monitoring unit (in this embodiment, I second battery monitoring unit is taken as an example, I is an integer ≥ 1). The I second battery monitoring unit includes a first second battery monitoring unit C1, a second second battery monitoring unit C2...the I second battery monitoring unit CI. The AC / DC bidirectional converter is an AC / DC bidirectional converter, which can convert AC into DC (i.e., rectification) and can also convert DC into AC (i.e., inversion). The K AC / DC bidirectional converters (including the first AC / DC bidirectional converter A1, the second AC / DC bidirectional converter A2...the Nth AC / DC bidirectional converter AN) all communicate with the central monitoring unit 10 via the second real-time communication data link L12. The central monitoring unit 10 can control the power output by the first AC / DC bidirectional converter A1, the second AC / DC bidirectional converter A2, ... the Nth AC / DC bidirectional converter AN. The K AC / DC bidirectional converters all communicate with the energy storage monitoring unit 111 through the second non-real-time communication data link L22. The energy storage monitoring unit 111 collects information such as voltage, current, power, electricity, operating temperature, operating status, fault alarm, etc. of the K AC / DC bidirectional converters through the second non-real-time communication data link L22. The energy storage monitoring unit 111 also communicates with the central monitoring unit 10 through the third non-real-time communication data link L23. After the energy storage monitoring unit 111 collects and summarizes the non-real-time data information in the energy storage cabinet 11, it transmits it to the central monitoring unit 10 through the third non-real-time communication data link L23. The energy storage monitoring unit 111 also communicates with the first battery cluster management unit 112 through the fourth non-real-time communication data link L24. The first battery cluster management unit 112 is used to obtain information such as the voltage, current, power, battery state of charge (SOC), battery state of health (SOH), operating temperature, operating status, fault alarm, etc. of the battery cluster. The first battery cluster management unit 112 also communicates with one second battery monitoring unit through the fifth non-real-time communication data link L25. Each of the one second battery monitoring units is electrically connected to the battery pack in the corresponding battery cluster, and the one second battery monitoring unit can obtain information such as the voltage, current, power, battery state of charge, battery state of health, operating temperature, operating status, fault alarm, etc. of the battery pack, and transmit this information to the first battery cluster management unit 112 through the fifth non-real-time communication data link L25.Then, the energy storage monitoring unit 111 collects information such as voltage, current, power, battery charge state, battery health state, operating temperature, operating state, fault alarm, etc. in the first battery cluster management unit 112 through the fourth non-real-time communication data link L24, and transmits it to the central monitoring unit 10 through the third non-real-time communication data link L23. It can be seen that the energy storage monitoring unit 111 can aggregate the data in the energy storage cabinet 11 and the battery cabinet 12 and then send it to the central monitoring unit 10, which can achieve the purpose of sharing the burden of the central control unit 10 and can improve the overall delay response of the system.

[0041] The battery cabinet 12 includes a second battery cluster management unit 121. The second battery cluster management unit 121 is used to obtain information such as voltage, current, power, battery state of charge, battery health status, operating temperature, operating status, fault alarm, etc. of the battery cluster. The energy storage monitoring unit 111 in one energy storage cabinet also communicates with the second battery cluster management unit 121 in M ​​battery cabinets (one battery cabinet is taken as an example in this embodiment) through the fourth non-real-time communication data link L24. The energy storage monitoring unit 111 collects information such as voltage, current, power, battery state of charge, battery health status, operating temperature, operating status, fault alarm, etc. of the second battery cluster management unit 121 through the fourth non-real-time communication data link L24.

[0042] The battery cabinet 12 also includes a first battery monitoring unit (in this embodiment, J first battery monitoring units are included as an example, and J is an integer ≥ 1). The J first battery monitoring units include a first first battery monitoring unit B1, a second first battery monitoring unit B2...the Jth first battery monitoring unit BJ. The second battery cluster management unit 121 communicates with the J first battery monitoring units via the sixth non-real-time communication data link L26. Among them, the battery cluster includes one or more battery packs. The J first battery monitoring units are all electrically connected to the corresponding battery packs, and the J first battery monitoring units can obtain information such as the voltage, current, power, battery state of charge, battery health status, operating temperature, operating status, fault alarm, etc. of the battery pack, and transmit this information to the second battery cluster management unit 121 via the sixth non-real-time communication data link L26.

[0043] In summary, the design concept of adopting a modular architecture and a sub-link communication architecture is realized, and many components in the system are simplified to achieve modular management layer by layer, with a simple structure, easy maintenance, and easy expansion. In addition, when a certain module (for example, the first AC / DC bidirectional converter A1) is damaged, the energy storage monitoring system 100 can still operate normally, so that the energy storage monitoring system 100 can have high reliability and easy maintenance. At the same time, due to the use of a dual-network communication architecture in which real-time communication data links and non-real-time communication data links are operated separately and independently, the real-time performance of power scheduling and energy regulation of the energy storage monitoring system 100 can be improved, and it is conducive to further improving the reliability of the energy storage monitoring system. In addition, a real-time communication data link is used for a small number of real-time control instructions, and the central monitoring unit 10 directly communicates with each AC / DC bidirectional converter to improve the real-time response of system instructions and solve the problem of slow response speed of system instructions caused by layering.

[0044] In one embodiment, if Figure 2 As shown, the energy storage monitoring system 100 also includes an on-grid and off-grid microcomputer device 13, an anti-backflow meter 14, a combiner cabinet metering meter 15, a combiner cabinet dehumidifier 16, a booster cabinet microcomputer device 17 and a seventh non-real-time communication data link L27. At the same time, Figure 2 The embodiment also exemplifies a manner in which the energy storage monitoring system 100 includes a plurality of energy storage cabinets 11 and a plurality of battery cabinets 12 .

[0045] The central monitoring unit 10 communicates with the on-grid and off-grid microcomputer device 13, the anti-backflow meter 14, the combiner cabinet metering meter 15, the combiner cabinet dehumidifier 16 and the booster cabinet microcomputer device 17 respectively through the seventh non-real-time communication data link L27.

[0046] Specifically, the on-grid and off-grid microcomputer device 13 is used to control the switches and other components in the on-grid and off-grid cabinet to configure the on-grid or off-grid connection of the energy storage monitoring system 100. The anti-backflow meter 14 is used to measure the current flowing back to the power grid to prevent backflow. The junction cabinet metering meter 15 is used to detect the power of the junction cabinet. The main function of the junction cabinet is to concentrate the current from different directions into one place and transmit it to the downstream equipment through suitable wires or cables, so that the power can be easily transmitted and distributed. The junction cabinet dehumidifier 16 is used to effectively control the air humidity of the junction cabinet, and can help reduce problems such as chemical reactions, oxidation and corrosion. It can also avoid moisture condensation in a humid environment, resulting in large-scale failures of electrical lines and ultimately damage to the junction cabinet. The booster cabinet microcomputer device 17 is used to control the switches and other components in the booster cabinet, and the booster cabinet is used to increase the voltage.

[0047] The central monitoring unit 10 can obtain the operation information and operation status of the on-grid and off-grid microcomputer device 13, the anti-backflow meter 14, the combiner cabinet metering meter 15, the combiner cabinet dehumidifier 16 and the booster cabinet microcomputer device 17 by communicating with the on-grid and off-grid microcomputer device 13, the anti-backflow meter 14, the combiner cabinet metering meter 15, the combiner cabinet dehumidifier 16 and the booster cabinet microcomputer device 17 respectively, thereby realizing the local EMS (Energy Management System), system on-grid and off-grid control, system anti-islanding detection and system dynamic environment monitoring and other functions.

[0048] In one embodiment, the energy storage monitoring system 100 further includes an eighth non-real-time communication data link L28 and a ninth non-real-time communication data link L29; the energy storage cabinet 11 further includes a fire controller 113, a liquid cooling controller 114, a first combustible gas sensor 115, a first temperature and humidity sensor 116 and a first input and output interface acquisition unit 117

[0049] The energy storage monitoring unit 111 also communicates with the fire controller 113 and the liquid cooling controller 114 through the eighth non-real-time communication data link L28. The energy storage monitoring unit 100 also communicates with the first combustible gas sensor 115, the first temperature and humidity sensor 116 and the first input and output interface acquisition unit 117 through the ninth non-real-time communication data link L29.

[0050] Specifically, the fire controller 113 is used to receive the fire alarm signal sent by the fire alarm controller or other fire triggering devices, and send control signals according to the set control logic to control various fire fighting equipment to achieve corresponding functions. The liquid cooling controller 114 is used to control the liquid cooling function. The first combustible gas sensor 115 is a detector for responding to the concentration of a single or multiple combustible gases. The first temperature and humidity sensor 116 is used to detect temperature and humidity. The first input and output interface acquisition unit 117 is used to collect parameters such as the voltage and current of the battery.

[0051] The energy storage monitoring unit 111 communicates with the first combustible gas sensor 115, the first temperature and humidity sensor 116 and the first input and output interface acquisition unit 117 respectively to collect and summarize the operating parameters and operating status information of the dynamic environment monitoring equipment such as fire-fighting equipment, liquid cooling equipment, combustible gas sensors, temperature and humidity sensors, and I / O signal collectors in the energy storage cabinet 11.

[0052] In one embodiment, the battery cabinet 12 further includes a second combustible gas sensor 122 , a second temperature and humidity sensor 123 , and a second input and output interface acquisition unit 124 .

[0053] The energy storage monitoring unit 111 also communicates with the second combustible gas sensor 122 , the second temperature and humidity sensor 123 and the second input and output interface acquisition unit 124 respectively through a ninth non-real-time communication data link L29 .

[0054] Specifically, the second combustible gas sensor 122 is a detector for responding to a single or multiple combustible gas concentrations. The second temperature and humidity sensor 123 is used to detect temperature and humidity. The second input and output interface acquisition unit 124 is used to collect parameters such as the voltage and current of the battery. The energy storage monitoring unit 111 communicates with the second combustible gas sensor 122, the second temperature and humidity sensor 123, and the second input and output interface acquisition unit 124 respectively to collect and summarize the operating parameters and operating status information of the dynamic environment monitoring equipment such as the combustible gas sensor, temperature and humidity sensor, and I / O signal collector in the battery cabinet 12.

[0055] In addition, when the energy storage monitoring system 100 includes multiple energy storage cabinets 11 and multiple battery cabinets 12, on the one hand, the energy storage monitoring units 111 in each energy storage cabinet 11 can share the burden of the central control unit 10; on the other hand, the energy storage monitoring units 111 in each energy storage cabinet 11 aggregate the data in the corresponding energy storage cabinet 11 and battery cabinet 12 and then send them to the central control unit 10, so that the huge terminal data in the entire energy storage monitoring system 100 can be grouped, aggregated and managed in parallel. It can be seen that this embodiment can not only improve the overall delayed response of the system, but also avoid the overall paralysis of the system caused by the failure of a certain module.

[0056] In one embodiment, the real-time communication data link (including the first real-time communication data link L11 and the second real-time communication data link L12) and the non-real-time communication data link (including the first non-real-time communication data link L21 to the ninth real-time communication data link L29) in the energy storage monitoring system 100 are configured as dual-network redundancy of network A and network B. The dual-network redundancy of network A and network B is that when network A is normal, network A is used for communication, and when network A is abnormal, network B is used for communication.

[0057] By configuring dual network redundancy of network A and network B, when an abnormality occurs in one of network A and network B, it is possible to switch to another normal network for use, thereby maintaining the normal operation of the entire energy storage monitoring system 100, which is beneficial to improving the stability of the energy storage monitoring system 100.

[0058] In one embodiment, the real-time communication data link and the non-real-time communication data link in the energy storage monitoring system 100 both include at least one of the following communication modes: Ethernet, RS485, EtherCAT, CAN, and CAN FD.

[0059] Please refer to Figure 3 , Figure 3Flow chart of the control method provided in the embodiment of the present application. The control method is applied to the energy storage monitoring system 100 in any embodiment of the present application, for example Figure 1 and Figure 2 An energy storage monitoring system 100 is shown.

[0060] like Figure 3 As shown, the control method includes the following steps:

[0061] Step 301: Receive an electric energy dispatch instruction output by an external device that communicates with an energy storage monitoring system.

[0062] Step 302: Based on the power dispatching instruction and the preset energy management strategy, output the local power dispatching instruction to the energy storage cabinet in the energy storage monitoring system, so that the energy storage cabinet outputs the corresponding voltage, current and power based on the local power dispatching instruction.

[0063] Specifically, the electric energy dispatching instruction output by the external device is an instruction corresponding to the electric energy that needs to be provided by the energy storage monitoring system 100.

[0064] After receiving the power dispatching instruction, the energy storage monitoring system 100 outputs the local power dispatching instruction based on the preset energy management strategy (the strategy for managing power input and output), and the local power dispatching instruction is the instruction corresponding to the power output required by the energy storage cabinet. The local power dispatching instruction is sent to each AC / DC bidirectional converter in the energy storage cabinet 11 through the second real-time communication data link L12. After receiving the local power dispatching instruction, each AC / DC bidirectional converter outputs the voltage, current and power corresponding to the local power dispatching instruction. Thereby meeting the needs of external devices.

[0065] In some embodiments, after executing step 301 and before executing step 302, the control method further includes the following method steps: obtaining first status information of the energy storage cabinet, wherein the first status information includes voltage, current, battery state of charge, battery health status, temperature and fault information; based on the power scheduling instruction, the preset energy management strategy and the first status information, outputting the local power scheduling instruction to the energy storage cabinet, so that the energy storage cabinet outputs the corresponding voltage, current and power based on the local power scheduling instruction.

[0066] Specifically, by acquiring the first state information, it is possible to determine whether the energy storage monitoring system 100 can meet the requirements corresponding to the power dispatching instruction. Then, if the requirements corresponding to the power dispatching instruction are met, the voltage, current and power corresponding to the local power dispatching instruction are output. Otherwise, in some embodiments, only the maximum power that the energy storage monitoring system 100 can output is output.

[0067] In one embodiment, after executing step 302, the control method further includes the following steps: obtaining second state information of the energy storage cabinet, wherein the second state information includes voltage, current, power, electricity, temperature and operating status; and sending the second state information to an external device that communicates with the energy storage monitoring system.

[0068] Specifically, the second state information of each energy storage cabinet is collected to summarize and calculate the voltage, current, power, electricity, temperature, operating status and other information of the entire energy storage monitoring system 100, and the summarized information is transmitted to the external device.

[0069] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of the central monitoring unit 10 provided in an embodiment of the present application.

[0070] The central monitoring unit 10 may be a micro-controller unit (MCU) or a digital signal processing (DSP) controller.

[0071] like Figure 4 As shown, the central monitoring unit 10 includes at least one processor 11 and a memory 12, wherein the memory 12 can be built into the central monitoring unit 10 or externally located outside the central monitoring unit 10, and the memory 12 can also be a remotely located memory connected to the central monitoring unit 10 via a network.

[0072] The memory 12, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer executable programs and modules. The memory 12 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory 12 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 12 may optionally include a memory remotely arranged relative to the processor 11, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0073] The processor 11 performs various functions of the terminal and processes data by running or executing software programs and / or modules stored in the memory 12, and calling data stored in the memory 12, thereby monitoring the terminal as a whole, for example, implementing the method for starting the energy storage module described in any embodiment of the present application, and / or the method for starting the energy storage system.

[0074] The processor 11 may be one or more, Figure 4 A processor 11 is taken as an example. The processor 11 and the memory 12 may be connected via a bus or other means. The processor 11 may include a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, etc. The processor 11 may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0075] The present application also provides a non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, for example, to execute the above-described Figure 3 method steps.

[0076] An embodiment of the present application also provides a computer program product, including a computer program stored on a non-volatile computer-readable storage medium, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the control method in any of the above method embodiments, for example, executes the method steps of 3 described above.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage monitoring system, characterized in that: include: A central monitoring unit, a first real-time communication data link and a first non-real-time communication data link, wherein the central monitoring unit communicates with an external device via the first real-time communication data link and the first non-real-time communication data link; N energy storage cabinets, a second real-time communication data link, a second non-real-time communication data link, a third non-real-time communication data link, a fourth non-real-time communication data link and a fifth non-real-time communication data link, N is an integer ≥ 1; the energy storage cabinet includes an AC / DC bidirectional converter, an energy storage monitoring unit, a first battery cluster management unit and a second battery monitoring unit, the AC / DC bidirectional converter communicates with the central monitoring unit through the second real-time communication data link, the AC / DC bidirectional converter also communicates with the energy storage monitoring unit through the second non-real-time communication data link, the energy storage monitoring unit also communicates with the central monitoring unit through the third non-real-time communication data link, the energy storage monitoring unit also communicates with the first battery cluster management unit through the fourth non-real-time communication data link, and the first battery cluster management unit also communicates with the second battery monitoring unit through the fifth non-real-time communication data link; N*M battery cabinets, M is an integer ≥ 1; the battery cabinet includes a second battery cluster management unit, and the energy storage monitoring unit in one of the energy storage cabinets also communicates with the second battery cluster management units in the M battery cabinets through the fourth non-real-time communication data link; a sixth non-real-time communication data link, wherein the battery cabinet further comprises a first battery monitoring unit, and the second battery cluster management unit communicates with the first battery monitoring unit via the sixth non-real-time communication data link; The energy storage monitoring system further includes an eighth non-real-time communication data link and a ninth non-real-time communication data link; the energy storage cabinet further includes a fire controller, a liquid cooling controller, a first combustible gas sensor, a first temperature and humidity sensor, and a first input and output interface acquisition unit; The energy storage monitoring unit also communicates with the fire controller and the liquid cooling controller respectively through the eighth non-real-time communication data link; The energy storage monitoring unit also communicates with the first combustible gas sensor, the first temperature and humidity sensor, and the first input and output interface acquisition unit respectively through the ninth non-real-time communication data link; The battery cabinet also includes a second combustible gas sensor, a second temperature and humidity sensor and a second input and output interface acquisition unit; The energy storage monitoring unit also communicates with the second combustible gas sensor, the second temperature and humidity sensor and the second input and output interface acquisition unit respectively through the ninth non-real-time communication data link.

2. The energy storage monitoring system according to claim 1, characterized in that: The energy storage monitoring system also includes an on-grid and off-grid microcomputer device, an anti-backflow meter, a combiner cabinet metering meter, a combiner cabinet dehumidifier, a booster cabinet microcomputer device and a seventh non-real-time communication data link; The central monitoring unit communicates with the on-grid and off-grid microcomputer device, the anti-backflow electric meter, the combiner cabinet metering electric meter, the combiner cabinet dehumidifier and the booster cabinet microcomputer device respectively through the seventh non-real-time communication data link.

3. The energy storage monitoring system according to claim 1, characterized in that: The real-time communication data link and the non-real-time communication data link in the energy storage monitoring system are both configured as dual-network redundancy of network A and network B, wherein the dual-network redundancy of network A and network B is to use network A for communication when network A is normal, and to use network B for communication when network A is abnormal.

4. The energy storage monitoring system according to claim 1, characterized in that: The real-time communication data link and the non-real-time communication data link in the energy storage monitoring system both include at least one of the following communication modes: Ethernet, RS485, EtherCAT, CAN and CAN FD.

5. A control method, characterized in that: Applied to the energy storage monitoring system according to any one of claims 1 to 4, the method comprises: Receiving an electric energy dispatching instruction output by an external device communicating with the energy storage monitoring system; Based on the electric energy dispatching instruction and the preset energy management strategy, the local electric energy dispatching instruction is output to the energy storage cabinet in the energy storage monitoring system, so that the energy storage cabinet outputs the corresponding voltage, current and power based on the local electric energy dispatching instruction.

6. The method according to claim 5, characterized in that After receiving the electric energy scheduling instruction output by the external device, the method further includes: Acquire first status information of the energy storage cabinet, wherein the first status information includes voltage, current, battery state of charge, battery health status, temperature and fault information; Based on the power scheduling instruction, the preset energy management strategy and the first state information, a local power scheduling instruction is output to the energy storage cabinet, so that the energy storage cabinet outputs corresponding voltage, current and power based on the local power scheduling instruction.

7. The method according to claim 5, characterized in that After outputting the local electric energy dispatching instruction to the energy storage cabinet, the method further includes: Acquire second status information of the energy storage cabinet, wherein the second status information includes voltage, current, power, electricity, temperature and operating status; The second state information is sent to the external device.

8. An energy storage monitoring system, characterized in that: include: A central monitoring unit, the central monitoring unit comprising: At least one processor and a memory communicatively connected to the at least one processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the at least one processor so that the at least one processor can execute the method as described in any one of claims 5-7.

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