Energy storage control device, energy storage system and energy storage control method

Abstract

The invention discloses an energy storage control device, an energy storage system and an energy storage control method. The energy storage control device comprises a power module, an energy storage valve centralized control device and a battery module, wherein the energy storage valve centralized control device comprises a functional board card, a first main control board card and a connecting plate; wherein the functional board card is respectively in communication connection with the power module and the battery module; the function board card is connected with the connecting board which is connected with the first main control board card. Through an energy storage valve centralized control device in the energy storage control device, functional board cards communicating with a power module and a battery module are integrated, and a first main control board card directly processes data, so that control and protection of the power module and the battery module are realized; therefore, the internal data between the underlying devices of the energy storage control device can be shared at a high speed, and the information interaction efficiency and performance of the energy storage control device are improved.

Description

Energy storage control device, energy storage system and energy storage control method Technical Field

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

[0002] To accelerate the construction of future power systems and promote the low-carbon transition to energy, research on energy storage systems is crucial. Currently, energy storage systems require extensive information exchange. However, in traditional energy storage systems, information exchange between underlying units and valve control systems is inefficient and the amount of information that can be exchanged is very limited, resulting in low energy storage system performance.

[0003] Summary of the Invention

[0004] According to various embodiments of the present application, an energy storage touch device, an energy storage system, and an energy storage control method are provided.

[0005] In the first aspect, the present application provides an energy storage control device, including a power module, an energy storage valve centralized control device and a battery module; the energy storage valve centralized control device includes a functional board card, a first main control board card and a connecting board; wherein the functional board card is respectively communicated with the power module and the battery module; the functional board card is connected to the connecting board, and the connecting board is connected to the first main control board card.

[0006] The energy storage control device integrates the functional boards for communicating with the power module and battery module through the energy storage valve centralized control device. The first main control board directly processes data to achieve control and protection of the power template and battery module, thereby enabling high-speed sharing of internal data between the underlying devices of the energy storage control device, thereby improving the information interaction efficiency and performance of the energy storage control device.

[0007] In a possible implementation, the energy storage valve centralized control device includes a chassis, which is a metal shell of the energy storage valve centralized control device.

[0008] By designing the chassis as a metal shell, the energy storage valve centralized control device achieves electromagnetic shielding, preventing electric shock and reducing the risk of electric shock from simultaneous contact between two modules, thereby improving the overall safety of the energy storage control device. By designing the chassis and power modules as equipotential, the energy storage valve centralized control device and the power modules are at the same potential amplitude benchmark and operate on the same level channel, facilitating direct signal acquisition between the systems.

[0009] In a possible implementation, the energy storage control device further includes a battery management unit, and the function board is communicatively connected to the battery module via the battery management unit.

[0010] Through the above method, the battery management unit collects and processes the battery module data, performs hierarchical control, reduces the burden on the energy storage valve centralized control device, and can make the data communication mode from external communication to internal interaction smoother, realize internal data sharing, and improve the efficiency of information interaction with the battery module.

[0011] In a possible implementation, the function board includes a driver board; the driver board is communicatively connected to the power module.

[0012] Through the above method, the driver board is used to communicate with the power module, and the acquired status information of the power module is directly transmitted to the first main control board of the energy storage valve centralized control device. Through this first main control board, internal data analysis and control of the energy storage valve centralized control device can be supported, further improving the integration of the energy storage system.

[0013] In a possible implementation, the function board includes a voltage acquisition board; the voltage acquisition board is communicatively connected to the power module.

[0014] Through the above method, by setting a voltage acquisition board in the energy storage valve centralized control device to collect the first data of the power module, the capacitor voltage of the power module can be sampled, so that the main control board can monitor the capacitor voltage of the power module and improve the real-time performance of the control and protection actions.

[0015] In a possible implementation, the function board includes a communication board; the communication board is communicatively connected to the battery module.

[0016] Through the above method, the communication board is used to communicate with the battery module, and the acquired second data of the battery module is directly transmitted to the first main control board of the energy storage valve centralized control device. Through the first main control board, the internal data of the energy storage valve centralized control device is analyzed and controlled, thereby further improving the data upload rate of the battery module and the integration of the energy storage valve centralized control device.

[0017] In a second aspect, the present application provides an energy storage system, which includes a valve controller and an energy storage control device as described in the first aspect, wherein the energy storage control device is communicatively connected to the valve controller.

[0018] Through the above method, the energy storage control device is communicated with the valve controller to achieve internal data sharing, reduce communication failures, and improve the efficiency of energy storage information interaction and the overall performance of the energy storage system.

[0019] In a possible implementation, the energy storage valve centralized control device is communicatively connected to the valve controller.

[0020] In the above manner, the energy storage control device is connected to the valve controller through the energy storage valve centralized control device. Based on internal data sharing, it can upload the data of the power module or battery module to the valve controller, and directly obtain the control data sent by the valve controller for the power module or battery module, and respectively control the power module and battery module accordingly; thereby improving the efficiency of internal data transmission and the overall performance of the energy storage system.

[0021] In one possible implementation, the expansion chassis includes a communication interface board and a second main control board; the expansion chassis is communicatively connected to the energy storage valve centralized control device through the communication interface board; and the expansion chassis is communicatively connected to the valve controller through the second main control board.

[0022] Through the above method, the expansion chassis is connected to the energy storage valve centralized control device through the communication interface board, and the second main control board is connected to the valve controller. The chassis that controls the power module and the battery module are integrated, making the layout of the valve controller, the power module, and the battery module more centralized and stable, making the energy storage system more modular and lightweight, and easy to maintain.

[0023] In a possible implementation, the energy storage system further includes a peripheral device; the peripheral device is communicatively connected to the energy storage control device and / or the valve controller.

[0024] Through the above-mentioned method, the communication connection between the peripheral equipment and the energy storage control device and / or the valve controller can reduce the peripheral equipment and realize the functional reuse of the peripheral equipment, that is, simultaneously support the control and protection of the power module and the battery module; reduce the cost of the energy storage system through functional reuse; and at the same time reduce the number of communication interfaces, reduce the probability of various data communication failures, and reduce the difficulty of energy storage system maintenance and debugging.

[0025] In a possible implementation, the energy storage system includes an expansion chassis; the energy storage control device and / or the valve controller is communicatively connected to the peripheral device via the expansion chassis.

[0026] In the above manner, the peripheral devices are connected to the valve controller and the energy storage valve centralized control device of the energy storage control device through the expansion chassis, thereby streamlining the levels and number of components of the energy storage system. In addition, through the setting of the expansion chassis, the battery management and converter valve control based on the peripheral devices are deeply integrated, and the structural topology of the energy storage system can be supported, which can realize the application scenario of large-scale information interaction with peripheral devices.

[0027] In a possible implementation, an expansion chassis in the energy storage system includes a second main control board; the expansion chassis is communicatively connected to the peripheral device via the second main control board.

[0028] In the above manner, the second main control board of the expansion chassis is connected to the peripheral devices for communication, making the layout of the peripheral devices more centralized and stable, and making the energy storage system more modular and lightweight, and easier to maintain.

[0029] In one possible implementation, the peripheral device includes a recording device and / or a monitoring device; the recording device is communicatively connected to the expansion chassis via a first link; and / or the recording device is communicatively connected to the valve controller via a second link; and / or the monitoring device is communicatively connected to the expansion chassis via a third link; and / or the monitoring device is communicatively connected to the valve controller via a fourth link.

[0030] The first link and the second link communicate based on high-speed serial links respectively, and the third link and the fourth link communicate based on Gigabit Ethernet protocols respectively.

[0031] By multiplexing the peripheral devices in this way, the number of devices and interfaces can be reduced, thereby reducing the number of communication optical fibers and thus reducing the cost of the energy storage system. At the same time, through high-speed serial links and Gigabit Ethernet protocol communications, the efficiency, stability and reliability of data transmission can be improved.

[0032] In a possible implementation, the peripheral device further includes a cooling system and / or a fire protection system; the cooling system is communicatively connected to the expansion chassis via a fifth link; and the fire protection system is communicatively connected to the expansion chassis via a sixth link.

[0033] The fifth link and the sixth link communicate based on the 100M Ethernet protocol respectively.

[0034] Through the above method, the cooling system and / or fire protection system are integrated into the energy storage system and multiplexed, which effectively reduces the number of control chassis and interfaces of the valve controller, reduces communication anomalies caused by optical fiber damage, loose connections or long-term aging of optical modules, and improves the reliability of the energy storage system.

[0035] In a third aspect, the present application provides an energy storage control method, which is applied to the energy storage control device described in the first aspect; the method comprises:

[0036] Acquire first data corresponding to the power module and second data corresponding to the battery module; send the first data and the second data to the valve controller; acquire control data fed back by the valve controller based on the first data and the second data; and control the power module and / or the battery module based on the control data.

[0037] Through the above method, internal data between the underlying devices of the energy storage control device can be shared at high speed, thereby improving the information interaction efficiency and performance of the energy storage control device.

[0038] In one possible implementation, the first data includes first state information of the power module, and the control data includes a first drive signal; sending the first data of the power module to the valve controller includes: sending the first state information of the power module to the valve controller;

[0039] Obtain control data fed back by the valve controller based on the first data, and control the power module based on the control data, including: obtaining a first drive signal fed back by the valve controller based on the first state information; and switching control the switch tube in the power module according to the first drive signal.

[0040] In the above manner, by switching and controlling the switch tube in the power module according to the first driving signal, the dead zone protection function of the power module is realized, thereby improving the control reliability.

[0041] In one possible implementation, the second data includes second state information of the battery module, and the control data includes a second drive signal; sending the second data of the battery module to the valve controller includes: sending the second state information of the battery module to the valve controller;

[0042] Acquiring control data fed back by the valve controller based on the second data and controlling the battery module based on the control data includes: acquiring a second drive signal fed back by the valve controller based on the second state information; and controlling the relay in the battery module to open or close according to the second drive signal.

[0043] In the above manner, by controlling the opening and closing of the relay in the battery module according to the second drive signal, the protection function of the battery module is realized and the control reliability is improved.

[0044] In a possible implementation, the method further includes: sending first data of the power module and / or the second data of the battery module to a peripheral device, where the first data and / or the second data are used to instruct the peripheral device to perform a control or protection operation.

[0045] In a possible implementation, the peripheral device includes a wave recording device; and the method further includes:

[0046] The first data and / or the second data are sent to the recording device; the recording device is used to generate a recording file after receiving the first data and / or the second data; the recording file is used to perform fault analysis on the power module and the battery module.

[0047] In a possible implementation, the peripheral device includes a monitoring device; and the method further includes:

[0048] The first data and / or the second data are sent to the monitoring device; the monitoring device is used to generate an energy storage system operation status interface after receiving the first data and / or the second data, and receive operation instructions input by the user based on the system operation status interface; receive the user's operation instructions fed back by the monitoring device, and monitor the power module and / or the battery module based on the operation instructions.

[0049] In one possible implementation, the peripheral device includes a cooling system; and the method further includes:

[0050] Sending first data and / or second data to the cooling system; the cooling system is used to generate a cooling instruction after receiving the first data and / or second data; receiving the cooling instruction fed back by the cooling system, and controlling the cooling of the power module and / or battery module based on the cooling instruction.

[0051] In a possible implementation, the peripheral device includes a fire protection system; and the method further includes:

[0052] The first data and / or the second data are sent to the valve controller; the valve controller is used to send the working status information of the energy storage system to the fire protection system based on the first data and / or the second data; the fire protection system is used to send an alarm signal when the working status information exceeds the alarm threshold.

[0053] Through the above method, the energy storage valve centralized control device can respectively obtain the first data of the power module and the second data of the battery module, and can process the first data and the second data, thereby realizing data sharing within the energy storage control device and improving the transmission efficiency of each data; by reusing the battery module, power module and valve controller of each peripheral device, the control and protection functions of the battery module and power module are centralized in one, thereby improving the overall performance of the energy storage control device and reducing the cost of the entire energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] FIG1 is a schematic structural diagram of an energy storage control device provided in an embodiment of the present application;

[0056] FIG2 is another schematic structural diagram of the energy storage control device provided in an embodiment of the present application;

[0057] FIG3 is a schematic structural diagram of an energy storage system provided in an embodiment of the present application;

[0058] FIG4 is another schematic structural diagram of the energy storage system provided in an embodiment of the present application;

[0059] FIG5 is a schematic diagram of the structure of an energy storage system provided in an embodiment of the present application;

[0060] FIG6 is another schematic structural diagram of the energy storage system provided in an embodiment of the present application;

[0061] FIG7 is another structural diagram of the energy storage system provided in an embodiment of the present application;

[0062] FIG8 is another schematic structural diagram of the energy storage system provided in an embodiment of the present application;

[0063] FIG9 is another schematic structural diagram of the energy storage system provided in an embodiment of the present application;

[0064] FIG10 is another schematic structural diagram of the energy storage system provided in an embodiment of the present application;

[0065] FIG11 is a schematic diagram of the specific structure of the energy storage system provided in an embodiment of the present application;

[0066] FIG12 is a schematic diagram of the board structure of the energy storage valve centralized control device provided in an embodiment of the present application;

[0067] FIG13 is a schematic diagram of the board structure of the expansion chassis provided in an embodiment of the present application;

[0068] FIG14 is a schematic diagram of the implementation flow of the energy storage control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0069] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0071] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0072] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0073] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0074] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0075] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0076] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0077] With the continuous development of renewable energy generation technologies, research on flexible direct current (FDC) equivalent synchronous generators is crucial to accelerate the construction of future power systems, promote low-carbon energy transitions, and fully leverage the support of flexible direct current (HVDC) transmission technology for these new power systems. The power output of isolated renewable energy sources via FDC is volatile and random, making it difficult to provide the same rotational inertia as a synchronous generator. Designing FDC energy storage is a key technical solution to this problem.

[0078] Currently, there is a significant demand for information exchange in the design of new energy storage solutions. However, the traditional valve control system and battery management system (BMS) are separated, resulting in the power module control unit (SMC) and battery management controller (BMC) independently managing the power module and battery module, respectively, and belonging to different manufacturers' systems. As voltage levels increase, the communication rate of battery data transmitted from the underlying units to the valve control system is slow and the exchange of information is very limited. Traditional energy storage systems are unable to support the future development of high-voltage flexible direct current energy storage technology. Because both systems are equipped with independent monitoring equipment, control chassis, recording equipment, cooling systems, and fire protection systems, this results in increased costs and increased difficulty in maintenance and debugging.

[0079] Furthermore, the two systems were independently developed by different manufacturers, and ultimately docking, debugging, and integration were completed on-site, resulting in tedious and error-prone work. The two systems employed a separate design, and the data exchange between the underlying units restricted system performance, leading to certain bottlenecks in data exchange. Due to the lack of an integrated design, the secondary control and protection devices were numerous and dispersed, hindering the modular and lightweight design of the energy storage valve tower. Furthermore, due to independent development and limited integration depth, the two systems had numerous communication interfaces, which were prone to various communication failures and required increased manpower and time during on-site docking, integration, and debugging.

[0080] Among them, the bottleneck of data interaction between the two systems is that the data interaction between the two systems mainly relies on the low-speed communication interface between the power module control unit and the battery cluster management unit; the two are interconnected through an external communication optical fiber, and the maximum communication rate of this external communication optical fiber is only 20Mbps. Therefore, at present, only some key battery data can be transmitted to the upper-level valve control system, and the remaining battery data (such as battery cell voltage, temperature, current, etc.) is connected to the BMS monitoring equipment through an independent communication link; thus, it cannot meet business scenarios with large amounts of information interaction, affects the real-time nature of control and protection actions, affects the data upload rate of the BMS system, and restricts the improvement of system performance.

[0081] In addition, since the two systems are designed separately, it is difficult to reuse the functions of peripheral equipment (such as monitoring equipment, control chassis, recording equipment, cooling system and fire protection system, etc.), resulting in increased costs.

[0082] In response to the above-mentioned series of problems, the embodiments of the present application provide an energy storage control device, an energy storage system and an energy storage control method, which can integrate the control and protection of battery modules and power modules into an integrated design, and change external communication to internal data sharing, thereby improving the information interaction efficiency and overall performance of the entire energy storage system.

[0083] The specific architecture of the energy storage control device is further described below through specific embodiments. The energy storage control device can be applied to control an energy storage valve, which can be a full-bridge or half-bridge energy storage valve unit. Taking a half-bridge energy storage valve unit as an example, the half-bridge energy storage valve unit can include a power module and a battery module. The power module is a half-bridge power module that can be connected to an external power grid and a battery module. A capacitor C and a resistor R can be provided in parallel on the side where the power module is connected to the battery module.

[0084] Please refer to Figure 1, which is a schematic diagram of the structure of the energy storage control device provided in an embodiment of the present application. As shown in Figure 1, the energy storage control device 10 may include an energy storage valve centralized control device 101, a power module 102, and a battery module 103. The energy storage valve centralized control device 101 is in communication with the power module 102 and the battery module 103 respectively.

[0085] Among them, the energy storage valve control device 101 includes a functional board card 1011, a first main control board card 1012 and a connecting board 1013. The functional board card 1011 is respectively communicated with the power module 102 and the battery module 103. The functional board card 1011 is connected to the connecting board 1013 and integrated into the energy storage valve control device. The connecting board 1013 is connected to the first main control board card 1012; thus, the functional board card 1011 can communicate with the first main control board card 1012 through the connecting board 1013.

[0086] In some embodiments, the energy storage valve centralized control device 101 in the energy storage control device 10 is respectively communicated with the power module 102 and the battery module 103, and obtains the first data of the power module 102 and the second data of the battery module 103; the first data and the second data are aggregated and processed by the energy storage valve centralized control device.

[0087] Exemplarily, the first data may include data related to the power module 102, such as the IGBT / thyristor / bypass switch status and the power module capacitor voltage value and other information; the second data may include data related to the battery module 103, such as the battery cell temperature value, the SOC\SOH\SOF values ​​of all battery cells, the upper and lower electrical relays of the battery pack, the fire protection status of the electrical cabinet and other information.

[0088] As shown in FIG2 , the energy storage control device 10 may further include a battery management unit 104 . The battery module 103 may include a battery cluster formed by multiple battery packs connected in series, each of which may be connected to a battery management unit 104 (e.g., a sub-battery management unit (SBMU)). The function board 1011 of the energy storage valve centralized control device 101 may establish a communication connection with the battery module through the battery management unit 104 .

[0089] In some embodiments, the functional board 1011 of the energy storage valve control device 101 may include a drive board and / or a communication board; that is, the functional board for the energy storage valve control device 101 to transmit and receive data with the power module 102 may be a drive board, and the functional board for transmitting and receiving data with the battery module 103 may be a communication board.

[0090] Exemplarily, the drive board communicates data with the power module 102, and the energy storage valve centralized control device 101 obtains the first data of the power module 102 (such as the status data of the switching tube, etc.) or sends control data (such as a driving signal, etc.) to the power module 102 through the drive board; for example, the drive board can be connected to the switching tube or thyristor of the power module 102, and the energy storage valve centralized control device 101 performs driving, monitoring and protection operations on the switching tube or thyristor; wherein, the switching tube of the power module 102 can adopt an insulated gate bipolar transistor (IGBT).

[0091] Exemplarily, the driver board is communicatively connected to the first main control board 1012 via the connection board 1013. The driver board obtains first data from the power module 102 and sends the first data to the first main control board 1012 via the connection board 1013. The first main control board 1012 processes and uploads the data. The driver board and the power module 102 can be directly or indirectly connected.

[0092] In some embodiments, the driver board receives the driving signal sent by the first main control board 1012 through the data line of the connecting board 1013, and controls the switching of the switch tube in the power module 102 according to the driving signal, such as delaying the switching control of the switch tube to ensure safety.

[0093] Taking the IGBT as an example, the driver board's IGBT drive logic incorporates a dead-zone protection feature to prevent simultaneous conduction of the upper and lower IGBTs in a half-bridge configuration. For example, if the driver board needs to turn on the upper IGBT at time 0 and the lower IGBT at time 1 based on the drive signal, the driver board will first turn off the upper IGBT and delay for a set period of time to ensure that the lower IGBT turns on after the upper IGBT is fully turned off.

[0094] In the above manner, the driver board performs delayed switching control on the switch tube in the power module 102 according to the driving signal sent by the first main control board 1012, thereby realizing the dead zone protection function of the power module and improving control reliability.

[0095] In some embodiments, the driver board can receive fault status information fed back by the power module 102 through the data line of the connecting board 1013, and send the fault status information to the first main control board 1012 through the data line of the connecting board 1013. The first main control board 1012 generates a corresponding fault identifier based on the fault status information and outputs it.

[0096] Exemplarily, the fault identifier is used to identify different fault types and can be, for example, a code or other identifying information. The first main control board 1012 implements a distinguishing code design based on the different fault states reported by the IGBTs in the power module 102, facilitating identification of the specific fault type by the upper-level device. For example, the first main control board 1012 can pre-store a correspondence between fault state information and fault identifiers. Upon receiving the fault state information reported by the power module 102, it generates a corresponding fault identifier and transmits it to the upper-level device. As shown in FIG12 , the aforementioned driver board can be a fiber optic driver board.

[0097] In the above manner, the driver board sends the fault status information fed back by the power module to the first main control board 1012 , and the first main control board 1012 generates and outputs a corresponding fault identifier to identify the specific fault type.

[0098] In some embodiments, the communication board is in communication connection with the battery module 103 , obtains the second data of the battery module 103 , and sends the second data to the first main control board of the energy storage valve centralized control device 101 .

[0099] Exemplarily, the communication board can be connected to the battery management unit 104 corresponding to the battery module 103 and communicate data with the battery management unit 104, such as obtaining the second data of the battery module 103 (such as battery data) or sending control data to the battery module 103; realizing the energy storage valve centralized control device 101 to monitor the parameters such as the cell voltage, current and insulation of the battery module 103, and calculate the state of charge (SOC), state of health (SOH) and state of function (SOF) of the battery in the battery management unit 104 and other information.

[0100] Among them, the communication board can also receive the fire alarm signal uploaded by the battery module 103 through the battery management unit 104, convert the fire alarm signal into an electrical signal through photoelectric conversion, and send the electrical signal to the first main control board 1012; realize the uploading of the fire alarm information of the battery management unit 104 for timely processing, and improve the working safety of the battery module 103.

[0101] Exemplarily, the communication board also receives fire alarm signals from the battery management unit 104. These fire alarm signals utilize optical pulse modulation, with a 100kHz, 50% duty cycle waveform defined as the idle signal and a 1MHz, 50% duty cycle waveform defined as the alarm signal. The communication board converts the received optical signals into electrical signals through optoelectronics. These signals are then transmitted to the first main control board 1012 via the connection board 1013 using low voltage differential signaling (LVDS) technology. Ultimately, the first main control board 1012 performs data decoding and subsequent processing.

[0102] In this embodiment, the first main control board 1012 communicates with the communication board and the driver board through the data line of the connecting board 1013, which can support internal data analysis and control of the energy storage valve centralized control device 101, further improving the integration of the energy storage valve centralized control device 101.

[0103] In one embodiment, as shown in FIG12 , the driver card in the energy storage valve centralized control device 101 that communicates with the power module 102 can be a fiber optic driver card, and the communication card in the energy storage valve centralized control device 101 that communicates with the battery management unit 104 can be a fiber optic communication expansion card. This improves internal data transmission efficiency while ensuring data transmission stability and reliability, and allows for expansion as the number of battery modules 103 increases.

[0104] For example, the energy storage valve centralized control device 101 can communicate with the battery management unit 104 and / or power module 102 using fiber optic communication, ensuring stable and reliable signal transmission. Fiber optic communication with the battery management unit 104 in the battery cluster is achieved through the use of a fiber optic communication expansion board, supporting the IEC 60044-8 protocol. A fiber optic driver board connects to the IGBTs in the power module 102 and issues IGBT drive instructions. The number of fiber optic communication expansion boards can be two or more, for example, three. Data transmission between the communication and driver boards and external devices is not limited to a single method; communication can occur via fiber optics, data cables, or wirelessly.

[0105] It should be noted that the aforementioned functional boards can be a single board integrating various functions; or they can be multiple boards arranged within the energy storage valve centralized control device based on different functions, such as the multiple boards arranged within the energy storage valve centralized control device based on different functions as shown in FIG12 . The above embodiments and FIG12 are merely illustrative and do not limit the specific form of the functional boards in the energy storage valve centralized control device.

[0106] In some embodiments, as shown in FIG12 , the first main control board 1012 can be a main CPU (Central Processing Unit) board. The specific type of main CPU board is not unique. For example, the main CPU board can utilize the ZYNQ-XC7Z020 series chip, which integrates two ARM cores and one programmable logic resource. The two ARM cores are functionally divided into a management core and a DSP (Digital Signal Processing) core. The management core is responsible for managing and modeling communication functions for the energy storage valve centralized control device 101, including program loading and self-test management for each functional board in the energy storage valve centralized control device 101, IEC61850 communication modeling and related services, device operation event management, and recording equipment management. The DSP core is used to implement algorithmic functions, primarily including estimating the state of various parameters (State of X, SOX) of the battery cluster and controlling SOX balancing between electrical cabinets. SOX estimation may specifically include estimating SOC, SOH, and SOP (State of Power). Programmable logic resources are responsible for driving external interfaces, encoding and decoding communication protocols, and implementing high-real-time control and protection logic. External interface drivers include ADC driver control and temperature and humidity sensor driver control. Communication protocol encoding and decoding includes decoding of timing signals, IEC60044-8 protocol encoding and decoding, and IEC61850 protocol encoding and decoding. High-real-time control and protection logic includes IGBT driver control and synchronous sampling and analysis of IGBT feedback signals. Furthermore, the first main control board is connected to and communicates with the valve controller.

[0107] In some embodiments, the energy storage valve control unit 101, power module 102, and battery module 103 can be placed in a preset position on the energy storage valve tower. The energy storage valve control unit 101 is housed in a separate electrical cabinet, its chassis constructed of a metal shell. This provides electromagnetic shielding for the energy storage valve control unit 101. This metal shell and the power module 102 are designed to be at the same potential, providing protection against electric shock and reducing the risk of electric shock from simultaneous contact between the two modules, thereby improving the overall safety of the energy storage control unit. The energy storage valve control unit 101 can utilize a 4U / 6U full-width chassis design.

[0108] Through the above embodiment, the energy storage control device 10 exchanges data with the power module 102 and the battery module 103 respectively based on the functional board card integrated in the energy storage valve centralized control device 101. The control and protection functions of the power module 102 and the battery module 103 are integrated into one through the energy storage valve centralized control device 101, thereby realizing high-speed internal data sharing between the underlying devices in the energy storage control device 10, improving the data interaction efficiency and overall performance of the energy storage control device 10. This fundamentally breaks through the bottleneck of underlying data interaction between the two systems in the traditional architecture and provides a foundation for the communication link for sending data to the battery module.

[0109] In some embodiments, the functional board 1011 of the energy storage valve centralized control device 101 may also include a voltage acquisition board, which is communicatively connected to the power module via a data line connected to the board. The voltage acquisition board collects first data from the power module 102 and transmits the first data to the first active board via the data line connected to the board. As shown in FIG12 , this voltage acquisition board may be a high-voltage acquisition board.

[0110] Exemplarily, the first data includes the capacitor voltage value of the power module 102. The voltage acquisition board samples the capacitor voltage value in the power module 102 and sends the obtained sampled voltage to the first main control board through the data line of the connection board.

[0111] Among them, the voltage acquisition board samples and monitors the capacitor voltage in the power module 102. By setting the voltage acquisition board in the energy storage valve centralized control device 101, the capacitor voltage of the power module is sampled so that the first main control board can monitor the capacitor voltage of the power module.

[0112] Exemplarily, the energy storage valve centralized control device 101 processes the acquired first data via the first main control board 1012. Based on the received sampled voltage, the first main control board 1012 removes the maximum and minimum values ​​and calculates a voltage mean. This voltage mean can be used by the first main control board 1012 to perform protection control or other functions on the power module 102. By removing the maximum and minimum values ​​and calculating the voltage mean, the first main control board 1012 can avoid single-point data anomalies that could cause protection failures.

[0113] By way of example, the specific structure of the voltage acquisition board is not unique. For example, the voltage acquisition board may include an op amp circuit, an analog-to-digital conversion chip, and a digital isolator. The op amp circuit connects the power amplifier module and the analog-to-digital conversion chip, and the digital isolator connects the analog-to-digital conversion chip and the connection board. The op amp circuit, the analog-to-digital conversion chip, and the digital isolator constitute a sampling loop. To improve the reliability of the sampling loop, two analog-to-digital conversion chips are designed for redundant sampling. The op amp circuit performs operations such as step-down and filtering on the capacitor voltage in the power amplifier module, generating a signal that the analog-to-digital conversion chip can process and then sending it to the analog-to-digital conversion chip. The analog-to-digital conversion chip performs analog-to-digital conversion on the received signal. The converted data is then transmitted to the connection board through the digital isolator and then uploaded to the first main control board 1012 via the data line of the connection board 1013, preventing damage to the first main control board 1012 due to abnormal front-end signals.

[0114] In this embodiment, an operational amplifier circuit and an analog-to-digital conversion chip are used to process and convert the high capacitor voltage of the power amplifier module, and the converted voltage is transmitted to the connection board through a digital isolator, thereby improving the voltage acquisition reliability of the voltage acquisition board.

[0115] In one possible implementation, the voltage acquisition board may further include a monitoring circuit, which is connected to the operational amplifier circuit, the analog-to-digital conversion chip, and the connecting board. When the monitoring circuit detects an abnormality in the operational amplifier circuit or the analog-to-digital conversion chip, the monitoring circuit sends an alarm signal to the first main control board 1012 through the data line of the connecting board.

[0116] Specifically, the monitoring circuit monitors the operating voltage of the operational amplifier circuit in the sampling loop, the operation and reference voltage of the analog-to-digital conversion chip, and immediately reports an alarm event once an abnormality occurs. For example, when it is detected that the voltage is higher than the preset upper limit value or lower than the preset lower limit value, an alarm signal is sent to the first main control board 1012.

[0117] In this embodiment, when the monitoring circuit detects an abnormality in the operational amplifier circuit or the analog-to-digital conversion chip, it reports an alarm signal to the first main control board 1012 to ensure the operational reliability of the voltage acquisition board.

[0118] In some embodiments, as shown in Figure 12, the function board 1011 of the energy storage valve centralized control device 101 may also include a low-voltage acquisition board, which can be connected to an environmental data acquisition device. The low-voltage acquisition board receives environmental data from the environmental data acquisition device and transmits the environmental data to the first main control board 1012 via a data line connected to the board. The environmental data acquisition device may be a temperature sensor, humidity sensor, or the like. The low-voltage acquisition board enables sampling of environmental data and provides physical interfaces for the temperature and humidity sensors. Specific interface formats include, but are not limited to, I2C, RS485, and other interfaces.

[0119] In this embodiment, a low-voltage acquisition board is provided inside the energy storage valve centralized control device 101 to communicate with the environmental data acquisition device, thereby realizing monitoring and acquisition of environmental data of the energy storage valve centralized control device 101 .

[0120] In some embodiments, as shown in FIG12 , the functional board 1011 of the energy storage valve centralized control device 101 may further include a high-side driver board, which may be connected to a status indication device. The high-side driver board receives a status indication instruction sent by the first main control board 1012 via a data line of the connecting board, and controls the status indication device according to the status indication instruction. The status indication device may be an indicator light, a display screen, a speaker, or other device that can provide status indication. Taking the example of an indicator light as the status indication device, the first main control board 1012 may determine a high-voltage or low-voltage state based on the capacitor voltage detected by the voltage acquisition board, and then output a status indication instruction to light up an external indicator light to indicate that the energy storage valve centralized control device is in a high-voltage or low-voltage state.

[0121] In this embodiment, a high-side driver board is provided inside the energy storage valve centralized control device 101 to connect with the status indication device, so as to facilitate corresponding status indication.

[0122] In some embodiments, as shown in FIG12 , the function board 1011 of the energy storage valve centralized control device 101 may further include an input board, which may collect external switch signals and status alarm information to monitor the external switch signals and status alarm information. The function board 1011 of the energy storage valve centralized control device 101 may further include a spare board, i.e., an empty panel as shown in FIG12 , which is used to fill the excess board slots of the energy storage valve centralized control device 101 and to expand functions. When the energy storage valve centralized control device 101 needs to add a board with other functions, the spare board can be replaced with a board with the new function.

[0123] In some embodiments, as shown in FIG12 , the functional board 1011 of the energy storage valve centralized control device 101 may further include a power board, which is connected to an external DC power supply so as to access the external DC power supply and supply power to other functional boards.

[0124] For example, the number of power boards can be two or more, and each power board is connected to an independent power bus in the connection board 1013. Specifically, taking the example of two power boards, a dual-power bus design is adopted in the connection board 1013, each power bus is powered by an independent power supply, and the buses remain independent.

[0125] In this embodiment, multiple power supply boards are respectively connected to independent power buses in the connection board 1013 so as to independently power other functional boards, thereby improving power supply reliability.

[0126] Exemplarily, the above-mentioned functional boards can be fixedly installed in the chassis of the energy storage valve control device, or can be detachably arranged in the chassis. The specific type and setting position of the connecting board 1013 are not unique. For example, the connecting board 1013 can be set on the back of the chassis of the energy storage valve control device 101. Connecting terminals are provided on the connecting board 1013 and each functional board. The connecting terminals of each functional board are connected to the connecting terminals on the connecting board 1013, so that the functional boards can communicate with each other through the data lines inside the connecting board 1013. The type of data line inside the connecting board 1013 is not unique. For example, the data line of the connecting board 1013 includes at least one of a CAN bus, a 100M network cable, a SERDES line, an LVDS differential line and a single-ended signal line. The specific data line type can be selected according to the data size and real-time requirements.

[0127] In this embodiment, the specific type of the data line in the connection board can be selected according to the data transmission requirements to facilitate data transmission.

[0128] Exemplarily, the above-mentioned functional boards are connected via different data lines of the connecting board 1013. For example, the optical fiber communication expansion board is connected to the first main control board 1012 via the SBMU (Slave Battery Management Unit) data bus in the connecting board, obtains the first data sent by the battery management unit 104 and uploads it to the first main control board 1012. The first main control board 1012 is connected to the optical fiber driver board via the corresponding data line of the connecting board 1013 to transmit IGBT drive instructions and status information. The voltage acquisition board is connected to the first main control board 1012 via the corresponding data line of the connecting board, and uploads the high-voltage sampling signal to the first main control board 1012. The low-voltage acquisition board is connected to the first main control board 1012 via the corresponding data line of the connecting board 1013, and uploads the low-voltage sampling signal to the first main control board 1012. The first main control board 1012 is connected to the high-side driver board via the corresponding data lines of the connecting board 1013, and transmits the indicator light drive signal to the high-side driver board. The input board is connected to the first main control board 1012 via the corresponding data lines of the connecting board, and uploads the input signal to the first main control board 1012. The power board is connected to the fiber optic communication expansion board, the fiber optic driver board, the first main control board 1012, the voltage acquisition board, the low-voltage acquisition board, the high-side driver board, and the input board via the power bus in the connecting board, and supplies power to the corresponding functional boards.

[0129] Exemplarily, the energy storage valve centralized control device 101 also includes board rails and clips disposed within the chassis. Each functional board is mounted within the chassis via the board rails and secured with the clips. Specifically, each functional board can be designed to be plugged in vertically, with the board rails installed within the chassis. Each functional board is secured to the chassis using clips. The board rails within the chassis facilitate assembly and removal of each functional board, while the clips secure each functional board, ensuring a more secure assembly.

[0130] The energy storage valve centralized control device 101 includes various functional boards, including a board for transmitting and receiving data with the battery management unit 104 in the battery module and a board for transmitting and receiving data with the power module, arranged in a chassis. The functional boards communicate with each other via data lines connected to the boards, enabling internal data sharing and improving the efficiency of energy storage information exchange. Furthermore, by integrating the power module control chassis and the battery cluster control chassis, the layout of the energy storage control device 10 is more centralized and solidified, facilitating the modular and lightweight design of the energy storage control device 10.

[0131] Based on the energy storage control device 10 provided in the above embodiment, the embodiment of the present application further provides an energy storage system 1; the architecture of the entire energy storage system 1 is further introduced below through specific embodiments.

[0132] Please refer to Figure 3, which is a schematic diagram of the structure of the energy storage system provided in an embodiment of the present application. As shown in Figure 3, the energy storage system 1 can include the energy storage control device 10 and the valve controller 20 in the above embodiment; the energy storage control device 10 establishes a communication connection with the valve controller 20.

[0133] In some embodiments, as shown in FIG4 , the energy storage valve centralized control device 101 in the energy storage control device 10 is in communication with the valve controller 20. The energy storage valve centralized control device 101 is in communication with the power module 102 and the battery module 103, respectively, and obtains first data from the power module 102 and second data from the battery module 103. The first data and the second data are aggregated and processed by the energy storage valve centralized control device, and then transmitted to the valve controller 20 based on the communication connection with the valve controller 20.

[0134] For example, after receiving the processed first data and second data sent by the energy storage control device 10, the valve controller 20 obtains the working status of the energy storage valve and issues control instructions based on the working status of the energy storage valve; for example, the valve controller 20 can issue control instructions based on the SOC and SOH states of each energy storage valve, combined with the modulation wave issued by the valve controller 20 and its own pressure equalization algorithm, to control the input and output of the energy storage valve.

[0135] In some embodiments, as shown in FIG5 , the energy storage system 1 further includes an expansion chassis 30 , and the energy storage control device 10 is communicatively connected to the valve controller 20 via the expansion chassis 30 .

[0136] As shown in Figure 6, the expansion chassis 30 establishes communication connections with the valve controller 20 and the energy storage valve centralized control device 101 respectively; the expansion chassis 30 is used to obtain the first data and the second data sent by the energy storage valve centralized control device 101, summarize the first data and the second data, and send them to the valve controller 20.

[0137] The expansion chassis 30 may include a communication interface board and a second main control board. The expansion chassis 30 communicates with the first main control board of the energy storage valve centralized control device 101 via the communication interface board. The expansion chassis 30 communicates with the valve controller 20 via the second main control board. As shown in the structural diagram of the expansion chassis in Figure 13, the second main control board may include a main CPU board A and a main CPU board B.

[0138] Exemplarily, the expansion chassis 30 is used to complete the distribution of control protection instructions, and to collect and upload relevant data of the power module 102 and the battery module 103 .

[0139] For example, the communication link established between the communication interface board of the expansion chassis 30 and the energy storage valve centralized control device 101 can utilize optical fiber 100M Ethernet communication. Data transmitted upstream from the energy storage valve centralized control device 101 to the expansion chassis 30 may include power module IGBT / thyristor / bypass switch status, power module capacitor voltage values, all battery cell voltage values, all battery cell temperature values, all battery cell SOC / SOH / SOF values, battery pack upper and lower electrical relay open / close status, and electrical cabinet fire protection status. Data transmitted downstream from the expansion chassis 30 to the energy storage valve centralized control device 101 may include power module IGBT / thyristor / bypass switch control and battery pack upper and lower electrical relay open / close control.

[0140] Exemplarily, the communication link between the extension chassis 30 and the valve controller 20 through the second main control board can adopt high-speed serial communication, for example, the Aurora protocol can be selected, and the communication rate is not less than 2Gbps. The data of the extension chassis 30 in uplink communication to the valve controller 20 may include: power module IGBT-related status, power module capacitor voltage value and battery pack-level SOX status, etc.; the data of the valve controller 20 in downlink communication to the extension chassis 30 may include: power module IGBT-related control instructions and battery pack power-on and power-off related control, etc.

[0141] As shown in Figure 13, the expansion chassis 30 can include two hot-backup main CPU boards (main CPU board A and main CPU board B), a configurable number of communication interface boards, and two redundant power supply boards. Main CPU board A and main CPU board B establish communication links with all communication interface boards via data lines on a connector board. These communication links utilize high-speed differential pairs, with a communication rate of no less than 300 Mbps.

[0142] Exemplarily, each of the above-mentioned boards and cards can be fixedly installed in the chassis of the expansion chassis 30, or can be detachably arranged in the expansion chassis 30. The specific type and setting position of the connection board of the expansion chassis 30 are not unique. For example, the connection board can be set on the back of the expansion chassis. Connection terminals are provided on the connection board and each board and card. The connection terminals of each board and card are connected to the connection terminals on the connection board, so that the boards and cards can communicate with each other through the data lines inside the connection board. The type of data line inside the connection board is not unique. For example, the data line of the connection board includes at least one of a CAN bus, a 100M network cable, a SERDES line, an LVDS differential line and a single-ended signal line. The specific data line type can be selected according to the data size and real-time requirements.

[0143] In this embodiment, the specific type of the data line in the connection board can be selected according to the data transmission requirements to facilitate data transmission.

[0144] Exemplarily, the power board is connected to the communication interface board, the main CPU board A and the main CPU board B via a power bus in the connection board to supply power to the corresponding boards.

[0145] Exemplarily, the expansion chassis 30 also includes board rails and clips disposed within the chassis. Each function card is mounted within the chassis via the board rails and secured with the clips. Specifically, each board can be designed to be inserted vertically, with the board rails mounted within the chassis. Each board is secured to the chassis using clips. The board rails within the expansion chassis 30 facilitate assembly and removal of each board, while the clips secure each function card, ensuring a more secure assembly.

[0146] In some embodiments, as shown in Figure 7, the energy storage system 1 also includes a peripheral device 40; as shown in Figure 7 (a), the peripheral device 40 can be communicatively connected to the energy storage control device 10; or, as shown in Figure 7 (b), the peripheral device 40 is communicatively connected to the valve controller 20; or, as shown in Figure 7 (c), the peripheral device 40 can be directly communicatively connected to the energy storage control device 10 and the valve controller 20 respectively; the peripheral device 40 can directly obtain relevant data (second data) of the battery module 103 in the energy storage control device 10, or directly obtain data sent by the valve controller 20, or simultaneously obtain data sent by both, to achieve monitoring of the power module 102 and the battery module 103.

[0147] For example, as shown in FIG8 , when the peripheral device 40 is directly connected to the energy storage control device 10 and the valve controller 20 for communication respectively, the peripheral device 40 can be directly connected to the energy storage valve centralized control device 101 in the energy storage control device 10 for communication.

[0148] For example, as shown in Figure 9, when the energy storage system 1 includes an expansion chassis 30, as shown in Figure 9 (a), the expansion chassis 30 can be respectively communicated with the energy storage control device 10 and the peripheral device 40; or, as shown in Figure 9 (b), the expansion chassis 30 can be respectively communicated with the valve controller 20 and the peripheral device 40; or, as shown in Figure 9 (c), the energy storage control device 10 is respectively communicated with the valve controller 20 and the peripheral device 40 through the expansion chassis.

[0149] Specifically, as shown in Figure 10, when the energy storage control device 10 is respectively communicated with the valve controller 20 and the peripheral device 40 through the expansion chassis 30, the peripheral device 40 and the valve controller 20 are respectively communicated with the energy storage valve centralized control device 101 in the energy storage control device 10 through the expansion chassis 30.

[0150] As shown in the structural diagram of the energy storage system 1 in Figure 11, the peripheral device 40 may include a monitoring device 401 and / or a recording device 402; the recording device 402 is communicatively connected to the extension chassis 30 via a first link; the recording device 402 is communicatively connected to the valve controller 20 via a second link; the monitoring device 401 is communicatively connected to the extension chassis 30 via a third link; and the monitoring device 401 is communicatively connected to the valve controller 20 via a fourth link.

[0151] The first link and the second link can communicate based on high-speed serial links, and the third link and the fourth link can communicate based on Gigabit Ethernet protocols. For example, the first link and the second link use the Aurora protocol for communication, with a communication rate of not less than 2 Gbps.

[0152] For example, as shown in FIG13 , high-speed serial communication is adopted between the main CPU board of the expansion chassis 30 and the recording device 402. The Aurora protocol can be selected. The communication rate is not less than 2 Gbps. The communication content may include: battery pack-level SOX status, battery pack power-on and power-off status, battery pack fault level, battery pack fire protection information, battery pack insulation status information, battery cluster-level SOX status, battery pack-level voltage, temperature information, etc.

[0153] Exemplarily, the main CPU board of the expansion chassis 30 and the monitoring device 401 utilize high-speed communication, such as Gigabit Ethernet, with a communication rate of no less than 1 Gbps. Uplink communications from the expansion chassis to the monitoring device 401 via the main CPU board may include battery pack-level SOX status, battery pack power-on and power-off status, battery pack fault level, battery pack fire safety information, battery pack insulation status information, battery cluster-level SOX status, battery pack-level voltage and temperature information, etc. Downlink communications from the monitoring device 401 to the expansion chassis 30 may include program upgrade control, black start control, power-on and power-off control, parameter setting and calibration, balancing control instructions, and fault recovery.

[0154] As shown in FIG11 , the peripheral device 40 may further include a cooling system 403 and / or a fire protection system 404 ; wherein the cooling system 403 establishes a communication connection with the expansion chassis 30 via a fifth link; and the fire protection system 404 establishes a communication connection with the expansion chassis 30 via a sixth link.

[0155] The fifth link and the sixth link can communicate based on the 100M Ethernet protocol respectively.

[0156] For example, the uplink communication content from the expansion chassis 30 to the cooling system 403 via the main CPU board may include: operating mode, fault level, water temperature information, etc. The downlink communication content from the cooling system 403 to the expansion chassis 30 may include: target cooling water temperature setting instructions, operating mode setting instructions, etc.

[0157] Exemplarily, the communication content between the expansion chassis 30 and the fire protection system through the main CPU board may include: liquid leakage sensor alarm, thermal runaway alarm, temperature sensor alarm signal, smoke sensor alarm signal, and equipment failure.

[0158] The monitoring device 401 is responsible for dual monitoring functions of the valve controller 20 and the battery management unit 104 . The monitoring interface of the valve controller 20 and the monitoring interface of the battery management unit 104 can be set independently.

[0159] Accordingly, in order to reduce the burden on the valve controller (VBC) 20, battery-related data (such as battery cell temperature, battery cell voltage, charge and discharge current) used for monitoring, recording, and fire-fighting purposes are all designed with independent communication loops, and the main CPU board of the expansion chassis 30 directly interacts with the monitoring device 401, recording device 402 and cooling system 403.

[0160] In addition, as shown in FIG11 , the entire energy storage system 1 has two identical communication links, such as line A (LAN A) and line B (LAN B), which are redundant with each other. The two lines can simultaneously transmit signals and execute control instructions.

[0161] The embodiments of this application, through the multiplexing communication settings of functional devices (such as recording equipment and monitoring equipment), reduce the number of functional devices and the number of interfaces, thereby reducing the number of communication optical fibers, achieving the goal of reducing the cost of the energy storage system, and facilitating the market promotion of flexible direct current energy storage technology. This application effectively reduces the number of control boxes and their interfaces by integrating the control and protection functions of power modules and battery modules and reuses functions, reduces communication anomalies caused by optical fiber damage, loose connections, or long-term aging of optical modules, and improves the reliability of the energy storage system.

[0162] Based on the above energy storage control device 10 and energy storage system 1, as shown in FIG14 , an embodiment of the present application further provides an energy storage control method, which may be performed by the above energy storage control device 10. Based on the same implementation principles as the above embodiment, details thereof will not be repeated here. The method may include the following steps:

[0163] S1401, obtaining first data corresponding to the power module and second data corresponding to the battery module.

[0164] S1402, sending first data and second data to the valve controller.

[0165] S1403, obtaining control data fed back by the valve controller based on the first data and the second data.

[0166] S1404: Control the power module and / or battery module based on the control data.

[0167] In the above energy storage control method, the energy storage control device 10 communicates with the functional board 1011, including the board for transmitting and receiving data with the battery management unit 104 connected to the battery module 103, and the board for transmitting and receiving data with the power module 102, through the data line of the connecting board 1013, thereby realizing internal data sharing and improving the efficiency of energy storage information interaction.

[0168] In some embodiments, the first data includes first status information of the power module, and the control data includes a first drive signal; sending the first data of the power module 102 to the valve controller 20 includes: sending the first status information of the power module 102 to the valve controller 20 .

[0169] In some embodiments, the control data fed back by the valve controller 20 based on the first data is obtained, and the power module 102 is controlled based on the control data, including: obtaining the first drive signal fed back by the valve controller 20 based on the first state information; and switching control of the switch tube in the power module 102 according to the first drive signal.

[0170] Illustratively, the energy storage valve centralized control device 101 includes a function board 1011 and a first main control board 1012 ; the function board 1011 includes a driver board, which obtains status information of the power module 102 and sends the status information to the first main control board 1012 .

[0171] Exemplarily, the driver board receives the driving signal sent by the first main control board 1012 , and controls the switching of the switch tube in the power module 102 according to the driving signal.

[0172] Exemplarily, the driver board receives the fault status information fed back by the power module 102 and sends the fault status information to the first main control board 1012 ; the first main control board 1012 generates and outputs a corresponding fault identifier according to the fault status information.

[0173] Exemplarily, the function board 1011 further includes a voltage acquisition board; the voltage acquisition board acquires first data from the power module and sends the first data to the first main control board 1012 .

[0174] In some embodiments, the second data includes second status information of the battery module 103 , and the control data includes a second drive signal; sending the second data of the battery module 103 to the valve controller 20 includes: sending the second status information of the battery module 103 to the valve controller 20 .

[0175] In some embodiments, the control data fed back by the valve controller 20 based on the second data is obtained, and the battery module 103 is controlled based on the control data, including: obtaining the second drive signal fed back by the valve controller 20 based on the second state information; and controlling the opening and closing of the relay in the battery module 103 according to the second drive signal.

[0176] Exemplarily, the function board 1011 includes a communication board; the communication board obtains the second data of the battery module 103 and sends the second data to the first main control board 1012 .

[0177] Exemplarily, the communication board receives the fire alarm signal uploaded by the battery module 103 through the battery management unit 104 , converts the fire alarm signal into an electrical signal through photoelectric conversion, and sends the electrical signal to the first main control board 1012 .

[0178] In some embodiments, the method further includes: sending first data of the power module 102 and / or the second data of the battery module 103 to the peripheral device 40 , where the first data and / or the second data are used to instruct the peripheral device 40 to perform a control or protection operation.

[0179] In some embodiments, the peripheral device 40 includes a wave recording device 402; the method further includes:

[0180] The first data and / or the second data are sent to the recording device 402; the recording device 402 is used to generate a recording file after receiving the first data and / or the second data; the recording file is used to perform fault analysis on the power module and the battery module.

[0181] Among them, the second data may include: battery pack level SOX status, battery pack power on and off status, battery pack fault level, battery pack fire information, battery pack insulation status information, battery cluster level SOX status, battery pack level voltage, temperature information, etc.

[0182] In some embodiments, the peripheral device 40 includes a monitoring device 401; the method further includes:

[0183] The first data and / or the second data are sent to the monitoring device 401; the monitoring device 401 is used to generate an energy storage system 1 operation status interface after receiving the first data and / or the second data, and receive an operation instruction input by the user based on the system operation status interface; receive the user's operation instruction fed back by the monitoring device 401, and monitor the power module 102 and / or the battery module 103 based on the operation instruction.

[0184] Among them, the second data may include: battery pack level SOX status, battery pack power-on and power-off status, battery pack fault level, battery pack fire information, battery pack insulation status information, battery cluster level SOX status, battery pack level voltage, temperature information, etc.; the energy storage control device 10 receives control instructions such as program upgrade control, black start control, power-on and power-off control, parameter setting and calibration, balancing control instructions, fault recovery, etc. fed back by the monitoring equipment, so that the monitoring equipment can monitor the battery module 103 and the valve controller 20.

[0185] In some embodiments, the peripheral device 40 includes a cooling system 403; the method further includes:

[0186] Send the first data and / or the second data to the cooling system 403; the cooling system 403 is used to generate a cooling instruction after receiving the first data and / or the second data; receive the cooling instruction fed back by the cooling system 403, and control the cooling of the power module 102 and / or the battery module 103 based on the cooling instruction.

[0187] Among them, the first data may include data such as the working mode, fault level, water temperature information of the power module, and the second data may include data such as the working mode, fault level, water temperature information of the battery module; the cooling instructions may include: target cooling water temperature setting instructions, working mode setting instructions, etc.

[0188] In some embodiments, the peripheral device 40 includes a fire protection system 404; the method further includes:

[0189] Send the first data and / or the second data to the valve controller 20; the valve controller 20 is used to send the working status information of the energy storage system 1 to the fire protection system 404 based on the first data and / or the second data; the fire protection system 404 is used to issue an alarm signal when the working status information exceeds the alarm threshold.

[0190] Among them, the alarm signals may include: liquid leakage sensor alarm, thermal runaway alarm, temperature sensor alarm signal, smoke sensor alarm signal, equipment failure, etc.

[0191] Through the embodiments of the present application, the energy storage valve centralized control device can respectively obtain the first data of the power module and the second data of the battery module, and can process the first data and the second data, thereby realizing data sharing within the energy storage control device and improving the transmission efficiency of each data; by reusing the battery module, power module and valve controller of each peripheral device, the control and protection functions of the battery module and the power module are centralized in one, thereby improving the overall performance of the energy storage control device and reducing the cost of the entire energy storage system.

[0192] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0193] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0194] It should be understood that the above is only to help those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. Based on the above examples given, those skilled in the art can obviously make various equivalent modifications or changes. For example, certain steps in each embodiment of the above detection method may be unnecessary, or certain new steps may be added. Or a combination of any two or any multiple embodiments described above. Such modifications, changes, or combined solutions also fall within the scope of the embodiments of the present application.

[0195] It should also be understood that the division of the modes, situations, categories and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features of various modes, categories, situations and embodiments can be combined without contradiction.

[0196] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0197] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0198] In the embodiments provided in this application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely illustrative. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0199] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0200] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

[0201] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An energy storage control device, characterized in that: Including power module, energy storage valve centralized control device and battery module; The energy storage valve centralized control device includes a function board, a first main control board and a connection board; wherein the function board is respectively communicated with the power module and the battery module; the function board is connected to the connection board, and the connection board is connected to the first main control board.

2. The energy storage control device according to claim 1, characterized in that: The energy storage valve centralized control device comprises a chassis, and the chassis is a metal shell of the energy storage valve centralized control device.

3. The energy storage control device according to claim 1 or 2, characterized in that: The energy storage control device also includes a battery management unit, and the function board is communicatively connected with the battery module via the battery management unit.

4. The energy storage control device according to any one of claims 1 to 3, characterized in that: The functional board includes a driving board; the driving board is communicatively connected with the power module.

5. The energy storage control device according to any one of claims 1 to 4, characterized in that: The functional board includes a voltage acquisition board; the voltage acquisition board is communicatively connected with the power module.

6. The energy storage control device according to any one of claims 1 to 5, characterized in that: The functional board includes a communication board; the communication board is in communication connection with the battery module.

7. An energy storage system, characterized in that: The energy storage system comprises a valve controller and an energy storage control device according to any one of claims 1 to 6, wherein the energy storage control device is communicatively connected with the valve controller.

8. The energy storage system according to claim 7, characterized in that: The energy storage valve centralized control device is communicatively connected with the valve controller.

9. The energy storage system according to claim 7, characterized in that: The energy storage system also includes an expansion chassis; the energy storage control device is communicatively connected with the valve controller via the expansion chassis.

10. The energy storage system according to claim 9, characterized in that: The expansion chassis includes a communication interface board and a second main control board; The expansion chassis is communicatively connected with the energy storage valve centralized control device via the communication interface board; The expansion chassis is communicatively connected to the valve controller via the second main control board.

11. The energy storage system according to any one of claims 7 to 10, characterized in that: The energy storage system further includes peripheral equipment; the peripheral equipment is communicatively connected with the energy storage control device and / or the valve controller.

12. The energy storage system according to claim 11, characterized in that: The energy storage system includes an expansion chassis; the energy storage control device and / or the valve controller is communicatively connected with the peripheral device via the expansion chassis.

13. The energy storage system according to claim 11, characterized in that: The expansion chassis in the energy storage system includes a second main control board; the expansion chassis is communicatively connected with the peripheral device via the second main control board.

14. The energy storage system according to claim 12, characterized in that: The peripheral equipment includes recording equipment and / or monitoring equipment; The wave recording device is communicatively connected to the extension chassis via a first link; and / or The wave recording device is connected to the valve controller through a second link; and / or The monitoring device is communicatively connected to the expansion chassis via a third link; and / or The monitoring device is communicatively connected to the valve controller via a fourth link.

15. The energy storage system according to claim 12, characterized in that: The peripheral equipment also includes a cooling system and / or a fire protection system; The cooling system is communicatively connected to the expansion chassis via a fifth link; The fire protection system is communicatively connected to the extension chassis via a sixth link.

16. A method for controlling energy storage, characterized in that: Applied to the energy storage control device according to any one of claims 7 to 15, the method comprises: Acquire first data corresponding to the power module and second data corresponding to the battery module; sending the first data and the second data to a valve controller; Acquire control data fed back by the valve controller based on the first data and the second data; The power module and / or the battery module are controlled based on the control data.

17. The method according to claim 16, characterized in that The first data includes first state information of the power module, and the control data includes a first drive signal; and sending the first data of the power module to the valve controller includes: sending the first state information of the power module to the valve controller; The obtaining control data fed back by the valve controller based on the first data, and controlling the power module and / or the battery module based on the control data, includes: Acquire the first driving signal fed back by the valve controller based on the first state information; The switch tube in the power module is switched and controlled according to the first driving signal.

18. The method according to claim 16, characterized in that The second data includes second state information of the battery module, and the control data includes a second drive signal; and sending the second data of the battery module to the valve controller includes: sending the second state information of the battery module to the valve controller; The obtaining control data fed back by the valve controller based on the second data, and controlling the battery module based on the control data, comprises: Acquire the second driving signal fed back by the valve controller based on the second state information; The relay in the battery module is controlled to be opened and closed according to the second driving signal.

19. The method according to any one of claims 16 to 18, characterized in that The method further includes: sending the first data of the power module and / or the second data of the battery module to a peripheral device, wherein the first data and / or the second data are used to instruct the peripheral device to perform a control or protection operation.

20. The method according to claim 19, characterized in that The peripheral device includes a wave recording device; the method further includes: The first data and / or the second data are sent to the recording device; the recording device is used to generate a recording file after receiving the first data and / or the second data; the recording file is used to perform fault analysis on the power module and the battery module.

21. The method according to claim 19, characterized in that The peripheral device includes a monitoring device; the method further includes: sending the first data and / or the second data to the monitoring device; the monitoring device is used to generate an energy storage system operation status interface after receiving the first data and / or the second data, and receive an operation instruction input by a user based on the system operation status interface; The operation instruction of the user fed back by the monitoring device is received, and the power module and / or the battery module is monitored based on the operation instruction.

22. The method according to claim 19, characterized in that The peripheral device includes a cooling system; the method further includes: sending the first data and / or the second data to the cooling system; the cooling system is configured to generate a cooling instruction upon receiving the first data and / or the second data; The cooling instruction fed back by the cooling system is received, and cooling of the power module and / or the battery module is controlled based on the cooling instruction.

23. The method according to claim 19, characterized in that The peripheral equipment includes a fire protection system; the method further includes: The first data and / or the second data are sent to the valve controller; the valve controller is used to send the working status information of the energy storage system to the fire protection system based on the first data and / or the second data; the fire protection system is used to send an alarm signal when the working status information exceeds an alarm threshold.

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