Battery energy adapter for battery digital energy storage system and energy storage system

Abstract

The invention discloses a battery energy adapter for a battery digital energy storage system and an energy storage system, and the battery energy adapter comprises a second power switch which is connected to the positive and negative output ends of a battery pack; the second control circuit communicates with the battery energy switch to receive a second control instruction, and controls the on-off of the second power switch according to the second control instruction; the port protection circuit comprises an absorption capacitor and a protection diode so as to carry out energy fluctuation suppression on the output of the battery pack; and the battery energy adapter is used for controlling the battery system to output power outwards. By adopting the battery energy adapter of the battery digital energy storage system, the battery system can be controlled to output power outwards, and high-precision automatic operation and maintenance inspection and management of the battery digital energy storage system can be realized.

Description

[0001] This application is a divisional application of the invention patent application with the application date of September 24, 2020, application number: 202011017999.2, and the name “Battery digital energy storage system and its automatic operation and maintenance inspection device and method”. Technical Field

[0002] The present invention relates to the technical field of battery management, and in particular to a battery energy adapter and an energy storage system for a battery digital energy storage system. Background Art

[0003] In practical applications, battery systems are typically used as backup energy sources for DC power systems and various DC devices. The battery packs within the battery system are composed of lead-acid batteries, lithium batteries, or fuel cells, and the batteries are connected in series. The battery packs provide emergency power supply during utility power outages, so operational monitoring and status maintenance of the battery packs are essential.

[0004] However, the battery detection and operation and maintenance methods of related technologies are relatively simple, and DC contactors are usually used to manage battery packs. Therefore, the following problems exist: on the one hand, whether to power off for protection is determined only by the voltage of the entire battery group, and the voltage of each battery cell is not distinguished, which cannot meet the requirements of refined and automated battery energy management. On the other hand, the on-off control components generally use DC contactors, and energy flow interruptions will occur during the switching process, which directly affects the stability of the load operation and greatly affects the actual life of the battery pack. Summary of the Invention

[0005] The present invention aims to at least partially address one of the technical problems in the related art. To this end, a first object of the present invention is to provide a battery energy adapter for a digital battery energy storage system that can control the external power output of the battery system and achieve high-precision automatic operation, maintenance, inspection, and management of the battery system.

[0006] The second object of the present invention is to provide a battery digital energy storage system.

[0007] To achieve the above-mentioned object, a battery energy adapter for a battery digital energy storage system proposed in an embodiment of the first aspect of the present invention includes a battery energy network card, a battery energy hub, a battery energy switch and a battery energy adapter, and the battery energy adapter includes:

[0008] a second power switch connected to the positive and negative output terminals of the battery pack;

[0009] a second control circuit, the second control circuit communicating with the battery energy switch to receive a second control instruction, and controlling the on and off of the second power switch according to the second control instruction;

[0010] a port protection circuit, the port protection circuit comprising an absorption capacitor and a protection diode to suppress energy fluctuations in the output of the battery pack;

[0011] The battery energy adapter is used to control the external output power of the battery system.

[0012] According to one embodiment of the present invention, the battery energy adapter further includes a fuse, which is connected in series to an external output end of the battery energy adapter to provide overcurrent protection for the battery pack.

[0013] According to one embodiment of the present invention, the battery energy network card uses a microsecond switching speed to control the battery cells to be in an access state or a bypass state.

[0014] According to one embodiment of the present invention, the battery energy network card includes:

[0015] an input port connected to the battery energy adapter;

[0016] a control port connected to the battery energy hub;

[0017] a bypass port connected to one end of the battery cell;

[0018] a first power switch, wherein a first end of the first power switch is connected to the input port, a second end of the first power switch is connected to the other end of the battery cell, a third end of the first power switch is connected to the bypass port, and a control end of the first power switch is connected to the control port;

[0019] The battery energy network card is provided corresponding to the battery cell, and is used to connect or bypass the battery cell.

[0020] According to one embodiment of the present invention, the battery energy hub comprises:

[0021] a detection circuit connected to an output port of the battery cell, and configured to detect a state parameter of the battery cell;

[0022] a level generating circuit, the level generating circuit being connected to the battery energy network card and configured to output a driving signal to the battery energy network card to perform switching control on the battery energy network card;

[0023] a first communication circuit, the first communication circuit being connected to the battery energy switch, and the first communication circuit being used to establish a communication connection between the battery energy hub and the battery energy switch;

[0024] a first control circuit, the first control circuit being connected to the first communication circuit, the level generating circuit, and the detection circuit, respectively, the first control circuit being configured to obtain status data of the battery cell and the battery energy network card based on status parameters of the battery cell, and to send the status data of the battery cell and the battery energy network card to the battery energy switch via the first communication circuit, and to receive a first control instruction issued by the battery energy switch via the first communication circuit, and to control the level generating circuit to generate a driving signal according to the first control instruction;

[0025] The battery energy hub is used to perform parameter detection on the battery cells to obtain status data of the battery cells and the battery energy network card.

[0026] According to one embodiment of the present invention, the battery energy switch is communicatively connected to the battery energy hub and the battery energy adapter respectively. The battery energy switch is configured to generate a first control instruction and a second control instruction based on status data of the battery cell and the battery energy network card, and send the first control instruction to the battery energy hub to control the battery energy network card through the battery energy hub, and send the second control instruction to the battery energy adapter to control the battery system to output through the battery energy adapter;

[0027] The battery energy exchanger comprises:

[0028] a third communication circuit, configured to establish a communication connection between the battery energy switch and a host computer, so that the battery energy switch receives remote operation and maintenance inspection instructions issued by the host computer;

[0029] If the host computer issues a remote operation and maintenance inspection instruction, the automatic operation and maintenance inspection device will implement the following functions:

[0030] The battery energy switch performs planned bypass switching on all battery cells in sequence through the battery energy hub, forming an open circuit static state of the battery cells, and completing high-precision measurement of the open circuit voltage of the battery cells without affecting the operation of the battery system.

[0031] According to one embodiment of the present invention, the battery energy switch further comprises:

[0032] a second communication circuit, the second communication circuit being used to establish a communication connection between the battery energy switch and the battery energy hub;

[0033] A control chip circuit and a high-speed computing circuit, wherein the control chip circuit is respectively connected to the second communication circuit and the high-speed computing circuit, the control chip circuit receives the status data of the battery cell and the battery energy network card uploaded by the battery energy hub through the second communication circuit, and sends the status data of the battery cell and the battery energy network card to the high-speed computing circuit for calculation and processing, and generates the first control instruction and the second control instruction according to the calculation and processing results of the high-speed computing circuit, and sends the first control instruction to the battery energy hub through the second communication circuit, and sends the second control instruction to the battery energy adapter.

[0034] To achieve the above-mentioned objectives, a battery digital energy storage system proposed in an embodiment of the second aspect of the present invention includes the battery energy adapter described above.

[0035] According to the battery digital energy storage system of the embodiment of the present invention, the battery energy adapter of the battery digital energy storage system is used to control the external output power of the battery system and realize high-precision automatic operation, maintenance, inspection and management of the battery digital energy storage system.

[0036] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 2. It is a block diagram of an automatic operation and maintenance inspection device for a battery digital energy storage system according to an embodiment of the present invention;

[0038] Figure 2 This is a connection diagram of an automatic operation and maintenance inspection device for a battery digital energy storage system according to one embodiment of the present invention;

[0039] Figure 3 A schematic diagram of the structure of a battery energy network card according to an embodiment of the present invention;

[0040] Figure 4 is a schematic structural diagram of a battery energy hub according to an embodiment of the present invention;

[0041] Figure 5 A schematic structural diagram of a battery energy exchanger according to an embodiment of the present invention;

[0042] Figure 6 A schematic structural diagram of a battery energy adapter according to an embodiment of the present invention;

[0043] Figure 7 A block diagram of a battery digital energy storage system according to an embodiment of the present invention;

[0044] Figure 8 Schematic diagram of the process of an automatic operation and maintenance inspection method for a battery digital energy storage system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0046] The following describes a battery energy adapter and an energy storage system for a battery digital energy storage system according to an embodiment of the present invention with reference to the accompanying drawings.

[0047] Figure 1 Schematic diagram of a block diagram of an automatic operation and maintenance inspection device for a battery digital energy storage system according to an embodiment of the present invention.

[0048] like Figure 1 As shown, the automatic operation and maintenance inspection device 100 of the battery digital energy storage system includes: a battery energy network card 10, a battery energy hub 20, a battery energy adapter 30 and a battery energy switch 40.

[0049] Specifically, if Figure 2 As shown, the battery energy network card 10 is set corresponding to the battery cell, and is used to connect or bypass the battery cell; the battery energy hub 20 is used to perform parameter detection on the battery cell to obtain status data of the battery cell and the battery energy network card; the battery energy adapter 30 is used to control the external output power of the battery system; the battery energy switch 40 is respectively communicated with the battery energy hub 20 and the battery energy adapter 30, and is used to generate a first control instruction and a second control instruction according to the status data of the battery cell and the battery energy network card 10, and send the first control instruction to the battery energy hub 20 to control the battery energy network card 10 through the battery energy hub 20, and send the second control instruction to the battery energy adapter 30 to control the battery system for output through the battery energy adapter 30.

[0050] Optionally, the first control instruction may be a battery cell access or bypass instruction, and the second control instruction may be a battery system output power adjustment instruction.

[0051] It should be noted that if Figure 2As shown, there can be multiple battery energy network cards 10 and battery energy hubs 20, and each battery energy hub 20 can manage multiple battery energy network cards 10. Each battery energy hub 20 controls the multiple battery energy network cards 10 according to the first control instruction issued by the battery energy switch 40 to control the access or bypass of the battery cells corresponding to the multiple battery energy network cards 10.

[0052] In addition, multiple battery energy hubs 20 can form a master-slave communication network with the battery energy switch to achieve management of battery systems with different voltage levels and different capacities.

[0053] Therefore, the automatic operation and maintenance inspection device of the battery digital energy storage system of the embodiment of the present invention controls the battery energy network card through the battery energy hub according to the first control instruction issued by the battery energy switch, so as to control the access or bypass of the battery cell corresponding to the battery energy network card, realize the access or bypass switching of any battery cell, and control the external output power of the battery system through the battery energy adapter according to the second control instruction issued by the battery energy switch, thereby realizing high-precision automatic operation and maintenance inspection and management of the battery system.

[0054] Furthermore, each battery cell is provided with a corresponding battery energy network card 10 to form a battery unit, and the battery units are connected in series to form a battery pack.

[0055] It should be understood that when the battery energy network card 10 bypasses some battery cells, since the battery cells are networked in series, the current will flow from the bypass, thereby not cutting off the entire battery pack circuit and not affecting the battery pack's power supply to the load.

[0056] Furthermore, the battery energy network card 10 uses a microsecond switching speed to control the battery cells to be in an access state or a bypass state.

[0057] It should be noted that compared with the prior art that uses millisecond-level on-off control devices, such as DC contactors, to control the conduction and disconnection of the circuit, the battery energy network card 10 of the embodiment of the present invention can use microsecond-level switching speed to control the battery cell to be in the connected state or bypass state, thereby realizing seamless switching of the connection or bypass of any battery cell to avoid energy flow interruption during the switching process and improve the stability of load operation.

[0058] The following is combined with Figure 3-6 The structures of the battery energy network card 10, the battery energy hub 20, the battery energy adapter 30 and the battery energy switch 40 in the automatic operation and maintenance inspection device 100 of the battery digital energy storage system according to the embodiment of the present invention are described.

[0059] Further, if Figure 3As shown, the battery energy network card 10 includes: an input port 101 , a control port 102 , a bypass port 103 and a first power switch 104 .

[0060] Specifically, the input port 101 is connected to the battery energy adapter 30; the control port 102 is connected to the battery energy hub 20; the bypass port 103 is connected to one end of the battery cell; the first end of the first power switch 104 is connected to the input port 101, the second end of the first power switch 104 is connected to the other end of the battery cell, the third end of the first power switch 104 is connected to the bypass port 103, and the control end of the first power switch 104 is connected to the control port 102.

[0061] It is understandable that after the battery energy hub 20 issues the first control instruction, the first power switch 104 can be controlled through the control port 102 in the battery energy network card 10 to connect or bypass the battery cell.

[0062] Specifically, if the control port 102 controls the first end and the second end of the first power switch 104 to be connected, the input port 101 is connected to the battery cell, and the battery cell is in the connected state. If the control port 102 controls the second end and the third end of the first power switch 104 to be connected, the bypass port 103 is connected to the battery cell, and the battery cell is in the bypass state.

[0063] It should be noted that the battery energy adapter 30 connected to the input port 101 can adjust the output power of the input load to improve the working stability of the load.

[0064] Further, if Figure 4 As shown, the battery energy hub 20 includes: a detection circuit 201 , a level generating circuit 202 , a first communication circuit 203 and a first control circuit 204 .

[0065] Specifically, the detection circuit 201 is connected to the output port of the battery cell and is used to detect the status parameters of the battery cell; the level generating circuit 202 is connected to the battery energy network card 10 and is used to output a driving signal to the battery energy network card 10 to switch and control the battery energy network card 10; the first communication circuit 203 is connected to the battery energy switch 40 and is used to establish a communication connection between the battery energy hub 20 and the battery energy switch 40; the first control circuit 204 is respectively connected to the first communication circuit 203, the level generating circuit 202 and the detection circuit 201, and is used to obtain the status data of the battery cell and the battery energy network card 10 according to the status parameters of the battery cell, and send the status data of the battery cell and the battery energy network card 10 to the battery energy switch 40 through the first communication circuit 203, and receive the first control instruction issued by the battery energy switch 40 through the first communication circuit 203, and control the level generating circuit 202 to generate a driving signal according to the first control instruction.

[0066] It can be understood that the battery energy hub 20 can detect the status parameters of each battery cell, such as the voltage, current and temperature of the battery cell, through the detection circuit 201, and feed back to the first control circuit 204. Then, the first control circuit 204 obtains the status data of the battery cell and the battery energy network card 10 according to the status parameters of the battery cell, and sends the status data of the battery cell and the battery energy network card 10 to the battery energy switch 40 and receives the first control instruction issued by the battery energy switch 40 through the first communication circuit 203, and controls the level generating circuit 202 to generate a driving signal to the battery energy network card 10 according to the first control instruction through the first control circuit 204 to switch and control the battery energy network card 10.

[0067] Further, if Figure 5 As shown, the battery energy switch 40 includes: a second communication circuit 401 , a control chip circuit 402 and a high-speed computing circuit 403 .

[0068] Specifically, the second communication circuit 401 is used to establish a communication connection between the battery energy switch 40 and the battery energy hub 20; the control chip circuit 402 is respectively connected to the second communication circuit 401 and the high-speed computing circuit 403, and the control chip circuit 402 receives the status data of the battery cells and the battery energy network card 10 uploaded by the battery energy hub 20 through the second communication circuit 401, and sends the status data of the battery cells and the battery energy network card 10 to the high-speed computing circuit 403 for calculation and processing, and generates a first control instruction and a second control instruction according to the calculation and processing results of the high-speed computing circuit 403, and sends the first control instruction to the battery energy hub 20 through the second communication circuit 401, and sends the second control instruction to the battery energy adapter 30.

[0069] It can be understood that the control chip circuit 402 in the battery energy switch 40 can receive the status data of the battery cells and the battery energy network card 10 uploaded by the battery energy hub 20 through the second communication circuit 401, and send the status data of the battery cells and the battery energy network card 10 to the high-speed computing circuit 403 for calculation and processing, and generate a first control instruction and a second control instruction based on the calculation and processing results of the high-speed computing circuit 403, and send the first control instruction to the battery energy hub 20 through the second communication circuit 401, and send the second control instruction to the battery energy adapter 30, so as to control the battery energy network card 10 according to the first control instruction through the battery energy hub 20 and control the battery system according to the second control instruction through the battery energy adapter 30.

[0070] Furthermore, if Figure 5 As shown, the battery energy exchanger 40 further includes: a third communication circuit 404 .

[0071] Specifically, the third communication circuit 404 is used to establish a communication connection between the battery energy switch 40 and the host computer, so that the battery energy switch 40 can receive remote operation and maintenance inspection instructions issued by the host computer.

[0072] It can be understood that if the host computer issues a remote operation and maintenance inspection instruction, the automatic operation and maintenance inspection device 100 of the battery digital energy storage system of the embodiment of the present invention realizes the following functions: 1) Automatic inspection and precise detection function, the battery energy switch 40 performs planned bypass switching on all battery cells in turn through the battery energy hub 20, forming an open circuit static state of the battery cell, and completing high-precision measurement of the open circuit voltage of the battery cell without affecting the operation of the battery system. Therefore, it can be continuously and automatically cycled without affecting the overall output state of the battery pack, and accurate working data of each battery cell can be obtained in real time. In addition, the measurement estimation accuracy will be further improved with the increase in the number of automatic inspection rounds. 2) Online cell independent maintenance function: when the battery pack is working in the charging and discharging process, one or more battery cells are planned to be bypassed through the battery energy network card 10 to achieve independent capacity adjustment of one or more battery cells, thereby achieving the purpose of online repair of battery cells. For example, when the battery system is in a floating charging state, one or more battery cells with a large charge are switched to a bypass state to disconnect from charging, so that the battery with a small remaining charge continues to remain online. Therefore, after several rounds of online maintenance, all battery cells will be maintained to a similar working state.

[0073] Furthermore, if Figure 6 As shown, the battery energy adapter 30 includes: a second power switch 301 , a second control circuit 302 , a fuse 303 and a port protection circuit 304 .

[0074] Specifically, the second power switch 301 is connected to the positive and negative output terminals of the battery pack; the second control circuit 302 communicates with the battery energy switch 40 to receive a second control instruction, and controls the on and off of the second power switch 301 according to the second control instruction; the fuse 302 is connected in series to the external output terminal of the battery energy adapter 30 to protect the battery pack from overcurrent; the port protection circuit 304 includes an absorption capacitor and a protection diode to suppress energy fluctuations in the output of the battery pack.

[0075] It can be understood that the battery energy adapter 30 can control the on and off of the second power switch 301 through the second control current 302 according to the second control instruction issued by the battery energy switch 40 to adjust the output power of the battery system. For example, the number of battery groups connected to the battery system can be determined according to the output power requirement of the battery system, and the battery system can be protected by the fuse 302, and the energy fluctuation of the battery group output can be suppressed through the port protection current 304.

[0076] It should be noted that the automatic operation and maintenance inspection device 100 of the battery digital energy storage system of the embodiment of the present invention also includes an online hot-swap function. For example, before the battery is installed or removed online, the battery energy network topology is configured on the battery energy switch 40. The backplane of the battery energy network card 10 will execute the configuration parameters of the battery energy switch 40 to promptly switch the newly installed battery pack to online mode or switch the battery pack to be removed to bypass mode, thereby ensuring the safety of the physical connection during the installation of the battery pack and the reliability of the battery system's continuous external output.

[0077] In summary, according to the automatic operation and maintenance inspection device of the battery digital energy storage system of the embodiment of the present invention, the battery energy hub performs parameter detection on the battery cell to obtain the status data of the battery cell and the battery energy network card, and communicates with the battery energy hub and the battery energy adapter respectively through the battery energy switch to generate a first control instruction and a second control instruction according to the status data of the battery cell and the battery energy network card, and sends the first control instruction to the battery energy hub to control the battery energy network card through the battery energy hub to connect or bypass the battery cell, wherein the battery energy network card corresponds to the battery cell setting, and sends the second control instruction to the battery energy adapter to control the external output power of the battery system through the battery energy adapter. In this way, high-precision automatic operation and maintenance inspection and management of the battery system and the connection or bypass switching of any battery cell are achieved.

[0078] Figure 7 FIG. 1 is a block diagram of a battery digital energy storage system according to an embodiment of the present invention. Figure 7As shown, an embodiment of the present invention further proposes a battery digital energy storage system 1000, which includes the automatic operation and maintenance inspection device 100 of the battery digital energy storage system of the embodiment of the present invention described above.

[0079] It should be noted that the specific implementation of the battery digital energy storage system 1000 in the embodiment of the present invention corresponds one-to-one to the specific implementation of the automatic operation and maintenance inspection device 100 of the battery digital energy storage system in the aforementioned embodiment of the present invention, and will not be repeated here.

[0080] In summary, the battery digital energy storage system according to the embodiment of the present invention adopts the automatic operation and maintenance inspection device of the battery digital energy storage system, which can realize high-precision automatic operation and maintenance inspection and management of the battery digital energy storage system, as well as the access or bypass switching of any battery cell.

[0081] Furthermore, the embodiment of the present invention also proposes an automatic operation and maintenance inspection method for a battery digital energy storage system, wherein the battery digital energy storage system includes a battery energy network card corresponding to a battery cell, and the battery energy network card is used to connect or bypass the battery cell, such as Figure 8 As shown, the method includes:

[0082] S101 , performing parameter detection on a battery cell to obtain status data of the battery cell and a battery energy network card, and sending the status data of the battery cell and the battery energy network card to a battery energy switch.

[0083] S102, generate a first control instruction and a second control instruction based on the status data of the battery cell and the battery energy network card, and send the first control instruction to the battery energy hub to control the battery energy network card through the battery energy hub to put the battery cell in an access state or a bypass state, and send the second control instruction to the battery energy adapter to control the battery system for output through the battery energy adapter.

[0084] It should be noted that the specific implementation of the automatic operation and maintenance inspection method of the battery digital energy storage system in the embodiment of the present invention corresponds one-to-one to the specific implementation of the automatic operation and maintenance inspection device of the battery digital energy storage system in the aforementioned embodiment of the present invention, and will not be repeated here.

[0085] In summary, according to the automatic operation and maintenance inspection method of the battery digital energy storage system according to the embodiment of the present invention, parameter detection is performed on the battery cell to obtain the status data of the battery cell and the battery energy network card, and the status data of the battery cell and the battery energy network card are sent to the battery energy switch. Then, according to the status data of the battery cell and the battery energy network card, a first control instruction and a second control instruction are generated, and the first control instruction is sent to the battery energy hub to control the battery energy network card through the battery energy hub so that the battery cell is in the access state or the bypass state, and the second control instruction is sent to the battery energy adapter to control the battery system to output through the battery energy adapter. In this way, high-precision automatic operation and maintenance inspection and management of the battery system and access or bypass switching of any battery cell are achieved.

[0086] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0087] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0088] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0089] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0091] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0092] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0093] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A battery energy adapter for a battery digital energy storage system, characterized in that: The battery digital energy storage system includes a battery energy network card, a battery energy hub, a battery energy switch and a battery energy adapter. The battery energy adapter includes: a second power switch connected to the positive and negative output terminals of the battery pack; a second control circuit, the second control circuit communicating with the battery energy switch to receive a second control instruction, and controlling the on and off of the second power switch according to the second control instruction; a port protection circuit, the port protection circuit comprising an absorption capacitor and a protection diode to suppress energy fluctuations in the output of the battery pack; The battery energy adapter is used to control the external output power of the battery system.

2. The battery energy adapter according to claim 1, wherein: The battery energy adapter further includes a fuse, which is connected in series to an external output end of the battery energy adapter to provide overcurrent protection for the battery pack.

3. The battery energy adapter according to claim 1, wherein: The battery energy network card uses a microsecond switching speed to control the battery cells to be in an access state or a bypass state.

4. The automatic operation and maintenance inspection device according to claim 3, characterized in that: The battery energy network card includes: an input port connected to the battery energy adapter; a control port connected to the battery energy hub; a bypass port connected to one end of the battery cell; a first power switch, wherein a first end of the first power switch is connected to the input port, a second end of the first power switch is connected to the other end of the battery cell, a third end of the first power switch is connected to the bypass port, and a control end of the first power switch is connected to the control port; The battery energy network card is provided corresponding to the battery cell, and is used to connect or bypass the battery cell.

5. The battery energy adapter according to claim 1, wherein: The battery energy hub comprises: a detection circuit connected to an output port of the battery cell, and configured to detect a state parameter of the battery cell; a level generating circuit, the level generating circuit being connected to the battery energy network card and configured to output a driving signal to the battery energy network card to perform switching control on the battery energy network card; a first communication circuit, the first communication circuit being connected to the battery energy switch, and the first communication circuit being used to establish a communication connection between the battery energy hub and the battery energy switch; a first control circuit, the first control circuit being connected to the first communication circuit, the level generating circuit, and the detection circuit, respectively, the first control circuit being configured to obtain status data of the battery cell and the battery energy network card based on status parameters of the battery cell, and to send the status data of the battery cell and the battery energy network card to the battery energy switch via the first communication circuit, and to receive a first control instruction issued by the battery energy switch via the first communication circuit, and to control the level generating circuit to generate a driving signal according to the first control instruction; The battery energy hub is used to perform parameter detection on the battery cells to obtain status data of the battery cells and the battery energy network card.

6. The battery energy adapter according to any one of claims 1 to 5, characterized in that: The battery energy switch is communicatively connected to the battery energy hub and the battery energy adapter respectively, and is used to generate a first control instruction and a second control instruction according to status data of the battery cell and the battery energy network card, and send the first control instruction to the battery energy hub to control the battery energy network card through the battery energy hub, and send the second control instruction to the battery energy adapter to control the battery system to output through the battery energy adapter; The battery energy exchanger comprises: a third communication circuit, configured to establish a communication connection between the battery energy switch and a host computer, so that the battery energy switch receives remote operation and maintenance inspection instructions issued by the host computer; If the host computer issues a remote operation and maintenance inspection instruction, the automatic operation and maintenance inspection device will implement the following functions: The battery energy switch performs planned bypass switching on all battery cells in sequence through the battery energy hub, forming an open circuit static state of the battery cells, and completing high-precision measurement of the open circuit voltage of the battery cells without affecting the operation of the battery system.

7. The battery energy adapter according to claim 6, wherein: The battery energy switch also includes: a second communication circuit, the second communication circuit being used to establish a communication connection between the battery energy switch and the battery energy hub; A control chip circuit and a high-speed computing circuit, wherein the control chip circuit is respectively connected to the second communication circuit and the high-speed computing circuit, the control chip circuit receives the status data of the battery cell and the battery energy network card uploaded by the battery energy hub through the second communication circuit, and sends the status data of the battery cell and the battery energy network card to the high-speed computing circuit for calculation and processing, and generates the first control instruction and the second control instruction according to the calculation and processing results of the high-speed computing circuit, and sends the first control instruction to the battery energy hub through the second communication circuit, and sends the second control instruction to the battery energy adapter.

8. A battery digital energy storage system, characterized in that: Comprising a battery energy adapter as claimed in any one of claims 1-7.

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