Control system and method of energy storage power station

Abstract

The invention relates to the field of energy storage, and particularly discloses a control system and method for an energy storage power station, and the system comprises a local controller and edge controllers which are in communication connection with the local controller, and the edge controllers are in one-to-one correspondence with energy storage containers of the energy storage power station; wherein the edge controller continuously obtains the operation data of the corresponding energy storage container, and issues the operation data when the operation data changes; the local controller subscribes to the operation data and generates and issues a control strategy based on the operation data; and the edge controller subscribes to the control strategy and controls the function equipment of the energy storage container to execute the control strategy. According to the technical scheme provided by the invention, the expandability of the energy storage container in the energy storage power station can be improved, and meanwhile, the real-time accurate control requirement of the energy storage power station is met.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of energy storage, and in particular to a control system and method of an energy storage power station. BACKGROUND

[0002] In the energy storage power station, the energy storage container gradually becomes a mainstream design scheme due to its characteristics of modularity, high integration and easy transportation and installation. The energy storage container forms an independent energy storage unit for storing and releasing electric energy by integrating the core components such as battery energy storage structure, battery management system, power conversion system (PCS), energy management system (EMS) and cooling control system into a standardized container. This modular structure not only simplifies the installation and maintenance process of the system, but also can flexibly expand the capacity and output power of the energy storage system through parallel or series connection of multiple energy storage units to meet different scale energy storage needs, and can be widely applied to scenarios including but not limited to single energy storage power station, photovoltaic energy storage hybrid power station, wind power energy storage hybrid power station, wind power photovoltaic energy storage power station, source network load storage system, distributed micro-grid system and industrial energy storage system.

[0003] When the existing technology controls the energy storage power station designed by the energy storage container, a single controller is usually used in cooperation with the Modbus industrial communication protocol, that is, the single controller collects the device operation data of each energy storage container through the Modbus serial communication protocol or the Modbus Ethernet communication protocol, and issues control instructions according to the polling collection results. This method can achieve better control effect when the number of energy storage containers is maintained in a small range (for example, in the scenario where the energy storage power station includes 2 or 4 energy storage containers), but when the number of energy storage containers is exponentially expanded in the application scenario, there are problems such as too large polling data collection delay, too heavy controller processing load, too high network bandwidth burden, and risk of overall reliability of the control system, which makes it difficult to support the actual application requirement of dynamic expansion of the number of energy storage containers. SUMMARY

[0004] The purpose of the present disclosure is to provide a control system and method of an energy storage power station, which can improve the expandability of the energy storage container in the energy storage power station, while meeting the real-time and accurate control requirements of the energy storage power station.

[0005] To solve the above technical problems, the first aspect of the present disclosure provides a control system of an energy storage power station, which can specifically include a local controller and an edge controller in communication connection with the local controller, and the edge controller corresponds one-to-one to an energy storage container of the energy storage power station; Among them, the edge controller continuously acquires the operation data of the corresponding energy storage container and publishes the operation data when the operation data changes; The local controller subscribes to operational data and generates and publishes control policies based on the operational data; The edge controller subscribes to control policies and controls the functional devices of the energy storage container to execute the control policies.

[0006] In some embodiments of this disclosure, optionally, the edge controller has a preset emergency control strategy; When the communication connection between the local controller and the edge controller is lost, the edge controller uses operational data to control the functional devices to execute emergency control strategies.

[0007] In one possible implementation of the first aspect described above, if the communication connection between the local controller and the edge controller is broken, the local controller continuously sends a communication reconnection request to the edge controller where the communication connection has been broken.

[0008] In one possible implementation of the first aspect described above, the edge controller includes a communication server; The local controller establishes an independent communication channel with each edge controller based on the communication server. The edge controller publishes operational data and subscribes to control policies based on the communication channel.

[0009] In one possible implementation of the first aspect above, when an energy storage container is added to the energy storage power station, the local controller obtains the communication server information of the added energy storage container and establishes a communication connection with the edge controller of the added energy storage container based on the communication server information.

[0010] In one possible implementation of the first aspect described above, the local controller and the edge controller communicate with each other based on the OPC UA protocol.

[0011] In one possible implementation of the first aspect above, the local controller is connected to the station-end communication of the energy storage power station; The local controller generates and publishes control policies based on operational data and preset control rules: and / or The local controller transmits at least part of the operational data to the station and generates and publishes control policies based on feedback instructions from the station.

[0012] In one possible implementation of the first aspect described above, the local controller is located in an energy storage container.

[0013] The second aspect of this disclosure provides a control method for an energy storage power station, wherein the energy storage power station includes a local controller and an edge controller communicatively connected to the local controller, and the edge controller corresponds one-to-one with the energy storage container of the energy storage power station; this control method is applied to the local controller and includes the following steps: Establish an independent communication channel with each edge controller; Based on the communication channel, subscribe to the operational data published by the edge controller, and generate and publish control policies based on the operational data.

[0014] A third aspect of this disclosure provides a control method for an energy storage power station, wherein the energy storage power station includes a local controller and an edge controller communicatively connected to the local controller, and the edge controller corresponds one-to-one with the energy storage containers of the energy storage power station; the control method is applied to the edge controller and includes the following steps: Continuously acquire operational data of energy storage containers and release operational data when changes occur; Subscribe to the control policies published by the local controller and control the functional equipment of the energy storage container to execute the control policies.

[0015] The technical solution provided in this disclosure avoids the problems of excessive polling data acquisition latency, excessive controller processing load, excessive network bandwidth burden, and poor overall reliability of the control system by coordinating the settings of the local controller and the edge controller. It improves the scalability of energy storage containers in energy storage power stations while meeting the real-time and precise control requirements of these stations. Furthermore, the implementation of this technical solution does not require changes to the current network topology of the energy storage power station or the energy storage container; it only requires replacing the existing serial gateway in the energy storage container with an edge controller and deploying services such as OPC UA in the edge controller, making it scalable. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is an exemplary structural diagram of a control system for an energy storage power station provided according to an embodiment of this disclosure; Figure 2 This is an exemplary detailed structural diagram of a control system for an energy storage power station provided according to an embodiment of the present disclosure; Figure 3 This is an exemplary flowchart of a control method for an energy storage power station provided according to an embodiment of the present disclosure; Figure 4This is an exemplary flowchart of another control method for an energy storage power station provided according to an embodiment of the present disclosure; Figure 5 This is an exemplary structural diagram of a controller provided according to an embodiment of the present disclosure. Detailed Implementation

[0018] As a modular and mobile energy storage unit, energy storage containers not only have a natural advantage in capacity expansion, but also can flexibly adapt to different application scenarios: from large-scale peak shaving and valley filling on the grid side, to high-reliability backup power for microgrids and off-grid systems, and to buffering links for electric vehicle battery swapping stations and renewable energy access, all rely on the high-precision power conversion and management capabilities within the energy storage container. Compared to fixed battery rooms, the containerized design enables rapid deployment and modular operation and maintenance—it only requires outdoor power, communication, and protection connections to be put into operation; if expansion is needed, only adding or replacing energy storage containers is required, without large-scale civil engineering and line modifications, thereby significantly reducing construction time and cost risks.

[0019] Inside each energy storage container, the core components work together to ensure overall performance: the battery system provides high energy density and long cycle life; the battery management system prevents overcharging, over-discharging, and overheating by real-time monitoring and equalization of individual cell voltage, temperature, and state of charge; the power conversion system integrates a bidirectional inverter and DC interface for efficient coupling with the grid or DC bus; and the energy management system receives policy commands from the energy storage power station and allocates and switches power within the container to meet various business needs such as frequency regulation, peak-valley arbitrage, and emergency backup. Furthermore, to meet outdoor dustproof, waterproof, and extreme temperature requirements, each energy storage container must have a reliable heat dissipation system, vibration damping structure, and weather-resistant shell to ensure stable operation in strong winds, rain, snow, and even salt spray environments.

[0020] When multiple energy storage containers are cascaded to form an energy storage power station, existing technologies employ a single controller working in conjunction with the Modbus industrial communication protocol for unified control of these containers. This involves a single controller polling and collecting operational data from each container via Modbus serial or Ethernet communication, and then issuing control commands based on the polling results. As explained in the background, in application scenarios where the number of energy storage containers expands exponentially, existing technologies suffer from problems such as excessive polling data acquisition latency, excessive controller load, high network bandwidth burden, and risks to the overall reliability of the control system, making it difficult to support the practical application requirements of dynamically expanding energy storage container numbers. To address these technical problems, this disclosure provides a controller cryptographic machine based on quantum random numbers and its secure communication method. This machine can simultaneously apply post-quantum cryptography algorithms and quantum random number generation services, effectively resisting the threat of quantum computing to data encryption security. Furthermore, some embodiments of this disclosure provide a control system and method for an energy storage power station, which can improve the scalability of energy storage containers in the power station while meeting the real-time and precise control requirements of the energy storage power station.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the various embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are provided in the embodiments of this disclosure to facilitate a better understanding of the disclosure. However, the technical solutions claimed in this disclosure can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this disclosure. The various embodiments can be combined with and referenced by each other without contradiction.

[0022] In some embodiments of this disclosure, Figure 1 A schematic diagram of the topology of a control system for an energy storage power station is shown, as follows: Figure 1As shown, the control system of this type of energy storage power station may specifically include a local controller 100 and an edge controller 210 communicatively connected to the local controller 100. The edge controller 210 corresponds one-to-one with the energy storage container 200 of the energy storage power station. The local controller refers to the controller set up locally at the deployment location of the energy storage container in the energy storage power station. In some embodiments, the energy storage power station may include multiple energy storage containers 200, such as 8, 16 or more, which is not limited here. Each energy storage container 200 corresponds to one edge controller 210, which can be configured inside the energy storage container 200 for continuous monitoring and control of the operating status information of the energy storage container, which is not limited here.

[0023] In some embodiments, such as Figure 1 As shown, the edge controller 210 is used to continuously acquire the operating data of the corresponding energy storage container 121 and publish the operating data when the operating data changes. In some embodiments, the edge controller 210 can be deployed locally on the corresponding energy storage container 121. Since a single edge controller 210 only continuously acquires and monitors the operating data of the deployed single energy storage container 121, it will not face a large data processing pressure, and can realize real-time acquisition of operating data to meet the overall rapid control requirements of the energy storage power station. In some embodiments, the edge controller 210 can proactively publish operational data when the continuously acquired operational data changes, thereby effectively reducing the communication resource overhead of the entire control system. It is understood that when the overall operational data of the energy storage container 121 corresponding to the edge controller 210 remains in a steady state, no additional control intervention is generally required for the energy storage container 121. Only when the operational data of the energy storage container 121 changes, indicating a change in its operational state, may additional control intervention be necessary. At this time, the edge controller 210 can proactively publish the changed operational data, effectively reducing the amount of operational monitoring data that needs to be transmitted while satisfying real-time data monitoring, thus saving the communication resource overhead of the entire control system. The specific implementation of the edge controller 210's acquisition and publication of operational data will be described in detail later and will not be elaborated here.

[0024] In some embodiments, such as Figure 1As shown, the local controller 100 can subscribe to the operating data published by the edge controller 210 through a communication connection with the edge controller 210, and generate and publish control strategies based on the operating data. In some embodiments, the local controller 100 and each edge controller 210 can communicate through independent communication channels, that is, the communication between the local controller 100 and a single edge controller 210 is not affected by other edge controllers 210. This can avoid communication congestion, latency, and other abnormal situations that affect the overall real-time control of the control system when a large number of energy storage containers 121 are expanded in the energy storage power station. The implementation of the communication connection between the local controller 100 and the edge controller 210, as well as the generation of control strategies, will be described in detail later and will not be repeated here.

[0025] In some embodiments, such as Figure 1 As shown, the edge controller 210 is also used to subscribe to the control policies published by the local controller 100 and control the functional devices in the energy storage container 121 to execute the control policies. Based on the above-mentioned settings of the edge controller 210 and the local controller 100, it is possible to support the expansion of a large number of energy storage containers in the energy storage power station, while meeting the real-time and precise control requirements of the energy storage power station. The specific implementation of the above control system will be further explained and described below with reference to specific embodiments.

[0026] In some embodiments, Figure 2 A detailed structural diagram of an exemplary control system for an energy storage power station is shown, such as... Figure 2As shown, the energy storage power station includes multiple energy storage containers 200a, 200b...200x. Each energy storage container is equipped with an edge controller 210, multiple functional devices 220, and a switch 230. In some embodiments, the functional devices 220 may specifically include data acquisition devices and control devices. The data acquisition devices may specifically include temperature acquisition devices, humidity acquisition devices, and battery array unit (BAU) monitoring devices, etc., for comprehensively collecting and acquiring operational data in the energy storage container. The control devices may specifically include programmable logic controllers (PLCs), for controlling the charging and discharging power of the battery array units, adjusting the environmental control systems such as air conditioning in the energy storage container, and activating fire protection, etc., according to the control strategy. No further limitations are specified here. In some embodiments, the edge controller 210 further includes a data acquisition client 211 and a communication server 212. The data acquisition client 211 is used to realize data transmission and control strategy interaction with various functional devices 220. In some specific scenarios, the data acquisition client 211 can poll the data acquisition devices in the functional devices 220 based on the Modbus communication protocol to obtain various operating data of the energy storage container, and transmit control strategies to the control devices in the functional devices 220. This is not limited here.

[0027] In some embodiments, such as Figure 2 As shown, the edge controller 210 includes a communication server 212 for establishing a communication connection between the edge controller 210 and the local controller 100. Specifically, the local controller 100 can establish an independent communication channel with each edge controller 210 based on information such as the access port provided by each communication server 212. The edge controller 210 can actively publish operating data and subscribe to control policies published by the local controller 100 based on the communication channel. The communication between different edge controllers 210 and the local controller 100 is independent of each other, enabling the local controller 100 to support the concurrent acquisition of operating data from multiple energy storage containers in the energy storage power station and the concurrent generation and publication of corresponding control policies, thus supporting the practical application needs of the continuously expanding energy storage containers in the energy storage power station. In some embodiments, the edge controller 210 achieves communication interaction with the local controller 100 through a switch 230 deployed in the energy storage container. In some embodiments, when a new energy storage container is added to an energy storage power station, the local controller 100 can obtain the communication server information of the new energy storage container and communicate with the edge controller of the new energy storage container based on the communication server information to achieve control support for the scenario of dynamically adding energy storage containers in the energy storage power station.

[0028] In some embodiments of this disclosure, for example, the local controller and the edge controller communicate based on the OPC UA protocol. OPC UA (OPC Unified Architecture) is an industrial communication protocol developed by the OPC Foundation to enable interconnection and data exchange between different devices, systems, and platforms. It enables efficient, secure, and platform-independent data communication in industrial IoT scenarios. The OPC UA protocol supports data communication transmission between the local controller and the edge controller using a publish / subscribe model. It can support efficient real-time data distribution based on message queues or multicast methods, and is particularly suitable for real-time monitoring of the operating status and distribution of control strategies among multiple energy storage containers in an energy storage grid.

[0029] In some embodiments, the local controller is housed within an energy storage container. For example, such as... Figure 2 As shown, the local controller 100 can be set in the energy storage container 200a. Here, the energy storage container 200a can be the first energy storage container in the energy storage power station, and it will be in the lowest adjustment priority during the subsequent dynamic adjustment of the energy storage containers of the energy storage power station, so as to ensure that the local controller is always online throughout the entire life cycle of the energy storage power station.

[0030] In some embodiments, such as Figure 2 As shown, the local controller 100 can also communicate with the station terminal 300 of the energy storage power station. The station terminal 300 is the core management and control component of the entire energy storage power station, typically operating as a cloud server responsible for monitoring, scheduling, and optimizing the equipment operation status. This usually includes a Supervisory Control and Data Acquisition (SCADA) system and an Energy Management System (EMS). In some embodiments, such as... Figure 2 As shown, the local controller 100 can autonomously generate and publish control strategies based on subscribed operational data and preset control rules; in other embodiments, such as Figure 2As shown, the local controller 100 can transmit at least a portion of the operational data to the station terminal 300, and generate and publish control strategies based on the feedback instructions from the station terminal 300. It is understood that the station terminal 300, as the core management and control part of the energy storage power station, may support the operation and maintenance management of more than one energy storage power station. At the same time, monitoring and receiving the raw operational data of multiple energy storage containers in the energy storage power station will also consume a large amount of network bandwidth resources. Therefore, edge processing can be performed through the settings of the local processor to achieve the sharing of some management and control functions of the station terminal. For operational data content that is difficult for the local processor to process or that is of core importance, and its corresponding control strategies, the station terminal can process, analyze and generate them, which is not limited here.

[0031] In some embodiments, such as Figure 2 As shown, a local controller 100 can be set up in an energy storage power station containing multiple energy storage containers. This local controller can monitor and control the operating status of all energy storage containers in the energy storage power station. In other embodiments, when the energy storage power station includes a large number of energy storage containers (for example, in the extreme case of a single energy storage power station including a dozen or even dozens of energy storage containers), the processing performance of a single local controller may not be able to take care of all energy storage containers. In this case, multiple local controllers can also be set up in the energy storage power station. Each local controller is connected to the station end of the energy storage power station and is responsible for monitoring and controlling the operating status of a portion of the energy storage containers in the energy storage power station. This is not limited here.

[0032] In some embodiments, further considering that the operating data collected by the energy storage container under normal operating conditions may have certain normal fluctuations, when the edge controller 210 actively publishes operating data, it can set the operation data to be considered as changed when the fluctuation of the operation data exceeds the preset normal fluctuation range, and actively publish the changed operation data, thereby further reducing unnecessary operation data publishing processes, reducing the data processing burden of the local processor 100, and enabling a single local processor 100 to support the real-time operation status monitoring of a large number of energy storage containers.

[0033] In some embodiments, further considering that the edge controller and the local controller communicate via a network, if the network connection between the edge controller and the local controller fails, the energy storage container may not be able to obtain timely monitoring and control of its operating status, thus facing the risk of difficulty in obtaining timely control responses to abnormal operating conditions. To overcome the above technical problems, the edge controller may be preset with an emergency control strategy, which may include stopping the operation of the energy conversion system of the energy storage container in an emergency, controlling the thermal management system (TMS) to adjust the operating temperature of the energy storage container, etc., without limitation. In some embodiments, when the communication connection between the local controller and the edge controller is broken, the edge controller may control the functional devices to execute the emergency control strategy based on operating data. It is understandable that, due to limitations in processing performance, edge controllers cannot achieve precise control of the normal operating conditions of energy storage containers based on operational data. Therefore, the emergency control strategies preset by edge controllers can only ensure that the energy storage containers are in a stable and safe state when connected to the network terminal, and do not participate in the actual operation control of the energy storage containers. For example, they can control the energy conversion system of the energy storage containers to stop working when the communication connection between the local controller and the edge controller is broken, or control the thermal management system to cool down the energy storage containers when the operating temperature of the energy storage containers exceeds a preset threshold, etc., without further limitations.

[0034] In some embodiments, further, when the communication connection between the local controller and the edge controller is lost, the local controller may continuously send communication reconnection requests to the edge controller at a preset frequency.

[0035] Some embodiments of this disclosure also relate to a control method for an energy storage power station, wherein the energy storage power station may specifically include a local controller provided in the foregoing embodiments and an edge controller communicatively connected to the local controller. The edge controller corresponds one-to-one with the energy storage container of the energy storage power station, which will not be elaborated upon here. In some embodiments, Figure 3 An exemplary flowchart of a control method for an energy storage power station is shown, such as... Figure 3 As shown, this control method is applied to the local controller in an energy storage power station, and may specifically include the following steps: Step 310: Establish an independent communication channel with each edge controller. In some embodiments, the communication channel of the local controller can be established by interacting with the communication server built into the edge controller. For details, please refer to the relevant descriptions in the foregoing embodiments, which will not be repeated here.

[0036] Step 320: Subscribe to the operational data published by the edge controller based on the communication channel, and generate and publish control policies based on the operational data. For details regarding the subscription of operational data and the generation and publication of control policies, please refer to the relevant descriptions in the foregoing embodiments; they will not be repeated here.

[0037] Some embodiments of this disclosure also relate to another control method for an energy storage power station, wherein the energy storage power station may specifically include a local controller provided in the foregoing embodiments and an edge controller communicatively connected to the local controller. The edge controller corresponds one-to-one with the energy storage container of the energy storage power station, which will not be elaborated upon here. In some embodiments, Figure 4 An exemplary flowchart of another control method for an energy storage power station is shown, such as... Figure 4 As shown, this control method is applied to the edge controller in an energy storage power station, and specifically includes the following steps: Step 410: Continuously acquire operational data of the energy storage container and publish operational data when changes occur.

[0038] Step 420: Subscribe to the control policies published by the local controller and control the functional devices of the energy storage container to execute the control policies.

[0039] In some embodiments, further, such as Figure 4 As shown, this control method may further include step 430: when the communication connection between the local controller and the edge controller is disconnected, the control function device executes an emergency control strategy based on the operating data. It is understood that the specific implementation of steps 410 to 430 can be found in the relevant descriptions of the foregoing embodiments, and will not be repeated here.

[0040] Some embodiments of this disclosure also relate to a controller that can be configured as a local controller provided in embodiments of this disclosure, or it can be configured as an edge controller provided in embodiments of this disclosure, without limitation herein. Figure 5 An exemplary structural diagram of a controller is shown, such as... Figure 5 As shown, the controller 500 includes at least one processor 510 and a memory 520 communicatively connected to the at least one processor. The memory 520 stores instructions that can be executed by the at least one processor 510. The instructions are executed by the at least one processor 510 to enable the at least one processor 510 to perform the steps of the control method of the energy storage power station provided in the foregoing embodiments.

[0041] The memory 520 and processor 510 are connected via a bus, which may include any number of interconnecting buses and bridges. The bus connects various circuits of one or more processors 510 and memory 520 together. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 510 is transmitted over a wireless medium via an antenna, which further receives data and transmits it to the processor.

[0042] In some embodiments, processor 510 may be responsible for managing the bus and general processing, and may also provide various functions, including timing, peripheral interfaces, voltage regulation, power management and other control functions, while memory 520 may be used to store data used by the processor when performing operations, without limitation.

[0043] Some embodiments of this disclosure also relate to a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the steps of the control method for an energy storage power station provided in the foregoing embodiments. In some embodiments, the computer-readable storage medium may include flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or D3 memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the computer-readable storage medium may be an internal storage unit of a computer device, such as the hard disk or memory of the computer device. In other embodiments, the computer-readable storage medium may also be an external storage device of a computer device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., provided on the computer device. Of course, the computer-readable storage medium may also include both internal storage units and external storage devices of a computer device. In this embodiment, the computer-readable storage medium is typically used to store the operating system and various application software installed on the computer device, such as the program code of the security communication method in this embodiment. Furthermore, the computer-readable storage medium can also be used to temporarily store various types of data that have been output or will be output.

[0044] Some embodiments of this disclosure also relate to a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for an energy storage power station provided in the foregoing embodiments.

[0045] In some embodiments, the computer program product may involve only a computer program, which may be carried on a storage medium or processing device. In other embodiments, the computer program product may also be a storage medium or processing device containing the aforementioned computer program. The processing device may include one or more processors, and the storage medium. Those skilled in the art will understand that all or part of the steps in the secure communication methods provided in the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure.

[0046] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A control system for an energy storage power station, characterized in that, It includes a local controller and an edge controller that is communicatively connected to the local controller, and the edge controller corresponds one-to-one with the energy storage container of the energy storage power station; The edge controller acquires the corresponding operating data of the energy storage container and publishes the operating data when the operating data changes. The local controller subscribes to the operational data and generates and publishes control policies based on the operational data; The edge controller subscribes to the control strategy and controls the functional devices of the energy storage container to execute the control strategy.

2. The control system of the energy storage power station according to claim 1, characterized in that, The edge controller is pre-configured with an emergency control strategy; If the communication connection between the local controller and the edge controller is lost, the edge controller controls the functional device to execute the emergency control strategy based on the operational data.

3. The control system of the energy storage power station according to claim 1, characterized in that, The edge controller includes a communication server; The local controller establishes an independent communication channel with each of the edge controllers based on the communication server. The edge controller publishes the operational data based on the communication channel and subscribes to the control policy.

4. The power plant control system according to claim 3, characterized in that, When the energy storage container is added to the energy storage power station, the local controller obtains the communication server information of the added energy storage container and establishes a communication connection with the edge controller of the added energy storage container based on the communication server information.

5. The control system of the energy storage power station according to any one of claims 1 to 4, characterized in that, The local controller and the edge controller communicate with each other based on the OPC UA protocol.

6. The control system of the energy storage power station according to claim 1, characterized in that, The local controller is connected to the station-end communication of the energy storage power station; The local controller generates and publishes the control strategy based on the operational data and preset control rules: and / or The local controller transmits at least a portion of the operational data to the station, and generates and publishes the control strategy based on feedback instructions from the station.

7. The control system of the energy storage power station according to claim 1, characterized in that, The local controller is located in one of the energy storage containers.

8. The control system of the energy storage power station according to claim 1 or 2, characterized in that, If the communication connection between the local controller and the edge controller is lost, the local controller continues to send communication reconnection requests to the edge controller where the communication connection is lost.

9. A control method for an energy storage power station, characterized in that, The energy storage power station includes a local controller and an edge controller that is communicatively connected to the local controller. Each edge controller corresponds to one of the energy storage containers of the energy storage power station. The control method is applied to the local controller and includes the following steps: Establish an independent communication channel with each of the aforementioned edge controllers; Based on the communication channel, the system subscribes to the operational data published by the edge controller and generates and publishes control policies based on the operational data.

10. A control method for an energy storage power station, characterized in that, The energy storage power station includes a local controller and an edge controller that is communicatively connected to the local controller. Each edge controller corresponds to one of the energy storage containers of the energy storage power station. The control method is applied to the edge controller and includes the following steps: The system acquires the operational data of the energy storage container and publishes the operational data when it changes. Subscribe to the control policies published by the local controller and control the functional devices of the energy storage container to execute the control policies.

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