Energy storage battery network automatic topology identification device and energy storage system

Abstract

The utility model provides an energy storage battery network automatic topology identification device and an energy storage system, the topology identification device comprises network modules and power supply lines, the network modules are arranged in one-to-one correspondence with battery units in the energy storage system, and the power supply lines are connected with the battery units corresponding to the network modules; each network module comprises a plurality of network ports, the network ports are used for being connected with the network ports of the adjacent network modules, so that the adjacent network modules are connected in series and / or in parallel, and the connection mode of the network ports of each network module is the same as the connection mode of the corresponding battery unit in the energy storage system. According to the utility model, through the arrangement of the serial uplink port, the serial downlink port, the parallel uplink port and the parallel downlink port and the corresponding arrangement of the connection relationship between the serial uplink port, the serial downlink port, the parallel uplink port and the parallel downlink port and the corresponding battery units, the device can obtain a battery network topology structure according to the connection relationship of network ports; and the topological graph can be automatically identified and updated.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage of new energy power systems, and in particular to an automatic topology identification device for an energy storage battery network and an energy storage system. Background Art

[0002] In the electrochemical energy storage industry, multiple battery cells are connected in parallel and in series to form a battery network, and the series-parallel relationship between battery cells is becoming increasingly complex. As the complexity of the entire system increases, it becomes more difficult to locate the position of the battery cells in the network. Once the topological relationship is chaotic, it will cause trouble for the subsequent operation and maintenance of the entire energy storage system.

[0003] The generation of current battery topology relationships mainly relies on the following two aspects:

[0004] 1. According to the preset topological relationship, each battery unit is numbered, and the corresponding batteries are assembled to the corresponding positions according to the topological diagram. Since each battery unit has a unique number, after replacing it or swapping the positions of different battery protection modules, the topological relationship and the topological diagram cannot correspond, which can easily lead to control errors;

[0005] 2. After the on-site series and parallel connection is completed, report the location of each battery unit to the background. When the battery cell or battery module is replaced, the topology structure does not correspond to the topology diagram, and it is necessary to contact the background to modify the topology diagram;

[0006] It can be seen that in the prior art, when a battery cell needs to be replaced or needs to be replaced with each other, the above process needs to be repeated, which is time-consuming and labor-intensive.

[0007] Chinese patent CN202020379965.7 discloses an intelligent mobile terminal for topology identification, including a flat shell, in which a CPU, a printing circuit, a serial port conversion circuit, a storage module, a receiving and transmitting circuit, a gain control module, a key circuit, a battery, a power supply circuit, a wireless module, a positioning module, a buzzer and a control circuit are installed; a touch screen is installed on the front side of the shell, a camera and a flashlight are installed on the back side of the shell, and a button is also provided on the shell. This patent can quickly obtain the information of the power device by scanning the QR code, and can also record the connection relationship between the on-site devices into the storage module through the touch screen, and obtain the positioning information through the positioning module, and finally upload it to the server through the wireless module, so as to realize the collection, storage and upload of the power device information and related information, improve the data collection efficiency, and provide data support for topology identification. The smart mobile terminal provided by this patent requires manual hand-held scanning of the QR code on the power device to provide data support for topology identification. It cannot directly and automatically obtain the topological structure of the battery. After the power device is replaced, the hand-held terminal needs to be scanned again to collect and upload the relevant information of the new power device, which is time-consuming and labor-intensive. Utility Model Content

[0008] In view of this, the utility model aims to propose an automatic topology identification device for an energy storage battery network and an energy storage system, so as to solve the problem that the battery network topology structure in the energy storage system in the prior art cannot be automatically identified. When the battery cells are replaced or replaced with each other, the topology map needs to be readjusted according to the original topology structure identification method, which is time-consuming and labor-intensive.

[0009] In order to solve the above problems, the utility model discloses an automatic topology identification device for an energy storage battery network, comprising:

[0010] A network module and a power supply line, wherein the network module is arranged in a one-to-one correspondence with the battery unit in the energy storage system, and the power supply line is connected to the battery unit corresponding to the network module, and the network module is powered by the battery unit;

[0011] The network module includes a plurality of network ports, which are used to connect to the network ports of adjacent network modules so that the adjacent network modules are connected in series and / or in parallel. The connection method of the network port of each network module is the same as the connection method of the corresponding battery unit in the energy storage system.

[0012] Through the above settings, the physical connection method of the battery unit can be converted into a network connection mode of the network module. In the network connection mode, the position and connection relationship of each network module can be quickly determined by assigning IP addresses, etc., thereby realizing the rapid identification of the automatic topology of the energy storage battery network. In this case, even if the battery unit is replaced, the IP address of the network module corresponding to the replaced battery unit can be quickly assigned, thereby realizing automatic topology identification of the battery network, and the identification is accurate, which effectively solves the problem that the relationship between multiple battery cells cannot be quickly located under complex series-parallel relationships. It also solves the problem in the prior art that batteries or battery modules need additional manual verification of the relationship between batteries under complex series-parallel relationships, and once the verification is wrong, it will cause hidden dangers to the operation of the system.

[0013] Furthermore, each network module includes four network ports, namely a serial upstream port, a serial downstream port, a parallel upstream port and a parallel downstream port. The serial upstream port is used to connect to the upstream network interface, or the serial upstream port is used to connect to the serial downstream port of the previous network module to form a series connection; the serial downstream port is used to connect to the downstream network interface, or the serial downstream port is used to connect to the serial upstream port of the subsequent network module to form a series connection; the parallel upstream port is used to connect to the parallel downstream port of the previous network module to form a parallel connection; the parallel downstream port is used to connect to the parallel upstream port of the subsequent network module to form a parallel connection.

[0014] By setting the above four network ports, the network modules can be connected according to the connection relationship of the corresponding battery units in the energy storage system, thereby facilitating the rapid identification of the topological structure of the battery units in the energy storage system.

[0015] Furthermore, each network module contains a relatively independent MAC address.

[0016] Relatively independent MAC addresses mean that the MAC addresses in each network port in the same network module are different, or the MAC addresses in each network port in the same network module are different from the MAC addresses in the same network port in different network modules. Through the above settings, when performing topology identification, the topological relationship of the battery unit corresponding to the current network module in the energy storage system can be quickly determined by identifying the connection relationship of different MAC addresses, which is helpful for accurate and fast automatic topology identification.

[0017] Furthermore, the network module includes a network module, a single-chip microcomputer and a power module. The network module includes a PHY and a network port. There are four network modules, and the network ports are respectively a serial upstream port, a serial downstream port, a parallel upstream port and a parallel downstream port. The network port in each network module is connected to the single-chip microcomputer through its PHY, the single-chip microcomputer is connected to the power module, and the power supply line is connected to the power module.

[0018] The single-chip microcomputer is used to identify the connection relationship of the network port and assign and obtain the IP address corresponding to the network module in the system, and automatically obtain the topological structure of the battery unit according to the collected IP address. The power module is used to supply power to the single-chip microcomputer. The single-chip microcomputer is used for automatic numbering of each automatic topology identification device in the energy storage system and automatic assignment of IP addresses. After the connection is completed, each network automatic topology identification device is numbered and assigned an IP address by the single-chip microcomputer. The single-chip microcomputer of the host can obtain the network connection relationship, number and IP address of all network automatic topology identification devices in the energy storage system, so as to form a network automatic topology identification device connection network corresponding to the battery network one by one, and then automatically identify the topological map of the battery network in the energy storage system. After the battery unit is replaced or interchanged, the topological map can also be automatically updated through the connection network of the network automatic topology identification device, which significantly improves the recognition efficiency of the topological structure and saves recognition time.

[0019] Furthermore, the PHY in the network module is arranged inside the network module, and the network port is arranged outside the network module, and is used for network connection of the network automatic topology identification device.

[0020] Furthermore, the network port is an RJ45 and / or optical fiber interface.

[0021] The utility model also discloses an energy storage system, which includes the energy storage battery network automatic topology identification device as described above.

[0022] Furthermore, the energy storage system includes sixteen battery units, namely A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, and D4, forming a four-series and four-parallel system. The energy storage battery network automatic topology identification device in the energy storage system is connected in the following manner: the serial downlink port corresponding to A1 is connected to the serial uplink port corresponding to A2, the serial downlink port corresponding to A2 is connected to the serial uplink port corresponding to A3, and the serial downlink port corresponding to A3 is connected to the serial uplink port corresponding to A4 to form a series A; the serial downlink port corresponding to B1 is connected to the serial uplink port corresponding to B2, the serial downlink port corresponding to B2 is connected to the serial uplink port corresponding to B3, and the serial downlink port corresponding to B3 is connected to the serial uplink port corresponding to B4 to form a series B; the serial downlink port corresponding to C1 is connected to the serial uplink port corresponding to C2 The serial downstream port corresponding to C2 is connected to the serial upstream port corresponding to C3, and the serial downstream port corresponding to C3 is connected to the serial upstream port corresponding to C4 to form a C string; the serial downstream port corresponding to D1 is connected to the serial upstream port corresponding to D2, the serial downstream port corresponding to D2 is connected to the serial upstream port corresponding to D3, and the serial downstream port corresponding to D3 is connected to the serial upstream port corresponding to D4 to form a D string; in addition, the parallel downstream port of A1 is connected to the parallel upstream port of B1, the parallel downstream port of B1 is connected to the parallel upstream port of C1, the parallel downstream port of C1 is connected to the parallel upstream port of D1, the parallel downstream port of A4 is connected to the parallel upstream port of B4, the parallel downstream port of B4 is connected to the parallel upstream port of C4, and the parallel downstream port of C4 is connected to the parallel upstream port of D4, so that the topology identification device corresponding to the battery unit forms the same connection method as the battery unit.

[0023] The topology identification device corresponding to the battery cell is connected in the same manner as the battery cell. When the topology structure of the battery cell needs to be identified, the topology structure of the battery cell in the energy storage system can be obtained by identifying the topology structure of the topology identification device.

[0024] Compared with the prior art, the energy storage battery network automatic topology identification device and energy storage system described in the utility model have the following advantages:

[0025] The utility model can obtain the battery network topology structure according to the connection relationship of the network port by setting the serial upstream port, serial downstream port, parallel upstream port, and parallel downstream port and the corresponding setting of the connection relationship between the upstream port and the corresponding battery unit. After the battery unit is replaced, the topology map can also be automatically identified and updated, which significantly improves the recognition speed of the battery network topology structure in the energy storage system and provides guarantee for the precise control of the subsequent energy storage system. The topology recognition device provided by the utility model has a simple structure and is easy to operate, which significantly improves the efficiency of battery network recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a battery unit and a network topology identification device corresponding to the battery unit according to an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the specific structure of the network topology identification device according to an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of a four-parallel-four-series battery network structure according to an embodiment of the present utility model;

[0029] Figure 4 for Figure 3 A schematic diagram of the connection structure of the network topology device corresponding to the battery unit;

[0030] Figure 5 for Figure 4 Schematic diagram of the respective IP addresses after the network topology connection is completed.

[0031] Description of reference numerals:

[0032] 1. Battery unit; 2. Power supply line; 3. Series upstream port; 4. Series downstream port; 5. Parallel upstream port; 6. Parallel downstream port; 7. Network module; 8. Network module; 9. Microcontroller; 10. Power module. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The specific embodiments described herein are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0034] An automatic topology identification device for an energy storage battery network and an energy storage system according to an embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] This embodiment provides an automatic topology recognition device for an energy storage battery network. Figure 1-Figure 5 As shown, including:

[0037] A network module 7 and a power supply line 2, wherein the network module 7 is arranged in a one-to-one correspondence with the battery unit 1 in the energy storage system, and the power supply line 2 is connected to the battery unit 1 corresponding to the network module 7, and the network module 7 is powered by the battery unit 1;

[0038] The network module 7 includes a plurality of network ports, which are used to connect to the network ports of adjacent network modules 7, so that the adjacent network modules 7 are connected in series and / or in parallel. The connection method of the network port of each network module 7 is the same as the connection method of the corresponding battery unit 1 in the energy storage system.

[0039] The network port is used to enable the network module 7 to form a series connection or a parallel connection relationship in the automatic topology identification device, wherein the connection method of the network port of each network module 7 is the same as the connection method of the corresponding battery cell 1 in the energy storage system, which means that when the battery cell 1 corresponding to a network module 7 is connected in series with the adjacent battery cell 1, the network module 7 and the network module 7 corresponding to the adjacent battery cell 1 are connected in series, and when the battery cell 1 corresponding to a network module 7 is connected in parallel with the adjacent battery cell 1, the network module 7 and the network module 7 corresponding to the adjacent battery cell 1 are connected in parallel. Through the above settings, the physical connection mode of the battery unit 1 can be converted into the network connection mode of the network module 7. In the network connection mode, the location and connection relationship of each network module 7 can be quickly determined by assigning IP addresses, etc., so as to realize the rapid identification of the automatic topology of the energy storage battery network. In this case, even if the battery unit 1 is replaced, the IP address of the network module 7 corresponding to the replaced battery unit 1 can be quickly assigned, so as to realize the automatic topology identification of the battery network, and the identification is accurate, which effectively solves the problem that the relationship between multiple battery units 1 cannot be quickly located under the complex series-parallel relationship, and also solves the problem that in the prior art, the battery or battery module needs additional manual verification of the relationship between the batteries under the complex series-parallel relationship, and once the verification is wrong, it will cause hidden dangers in the operation of the system. It should be noted that the battery unit 1 is a battery monomer or a battery module. When installing the battery or battery module, the corresponding network port is selected according to the location of the battery.

[0040] As one embodiment, each network module 7 includes four network ports, namely a serial uplink port 3, a serial downlink port 4, a parallel uplink port 5 and a parallel downlink port 6. The serial uplink port 3 is used to connect to the uplink network interface, or the serial uplink port 3 is used to connect to the serial downlink port 4 of the previous network module 7 to form a serial connection; the serial downlink port 4 is used to connect to the downlink network interface, or the serial downlink port 4 is used to connect to the serial uplink port 3 of the next network module 7 to form a serial connection; the parallel uplink port 5 is used to connect to the parallel downlink port 6 of the previous network module 7 to form a parallel connection; the parallel downlink port 6 is used to connect to the parallel uplink port 5 of the next network module 7 to form a parallel connection. In each network automatic topology identification device, the connection mode of its four network ports corresponds to the connection mode of the corresponding battery unit 1. Through the setting of the above four network ports, the network module 7 can be connected according to the connection relationship of the corresponding battery unit 1 in the energy storage system, thereby facilitating the rapid identification of the topological structure of the battery unit 1 in the energy storage system. It should be understood that the network ports of adjacent network modules 7 can be connected via network cables, which is not limited here.

[0041] Preferably, each network module 7 contains a relatively independent MAC address. Relatively independent MAC addresses mean that the MAC addresses in each network port in the same network module 7 are different, or the MAC addresses in each network port in the same network module 7 are different from the MAC addresses of the same network port in different network modules 7. Through the above settings, when performing topology identification, the topological relationship of the battery unit 1 corresponding to the current network module 7 in the energy storage system can be quickly determined by identifying the connection relationship of different MAC addresses, which is helpful for accurate and fast automatic topology identification.

[0042] As an embodiment of the present utility model, Figure 2As shown, the network module 7 includes a network module 8, a single-chip microcomputer 9 and a power module 10. The network module 8 includes a PHY (Port Physical Layer) and a network port. The network module 8 has four network ports, wherein the network ports are a serial uplink port 3, a serial downlink port 4, a parallel uplink port 5 and a parallel downlink port 6. Each network port in the network module 8 is connected to the single-chip microcomputer 9 through its PHY. The single-chip microcomputer 9 is connected to the power module 10, and the power supply line 2 is connected to the power module 10. The single-chip microcomputer 9 is used to identify the connection relationship of the network port and assign and obtain the IP address corresponding to the network module 7 in the system, and automatically obtain the topological structure of the battery unit 1 according to the collected IP address. The power module 10 is used to supply power to the single-chip microcomputer 9. In the present utility model, each network module 7 is powered by the battery unit 1 corresponding to it, and no additional power supply unit is required. Moreover, the power consumption of the single-chip microcomputer 9 is extremely small, and will not affect the normal operation of the energy storage system. In one of the embodiments, the single-chip microcomputer 9 is used for automatic numbering of each automatic topology identification device in the energy storage system and automatic assignment of an IP address. After the connection is completed, each network automatic topology identification device is numbered and assigned an IP address by the single-chip microcomputer 9. The single-chip microcomputer 9 of the host can obtain the network connection relationship, number and IP address of all network automatic topology identification devices in the energy storage system, thereby forming a network automatic topology identification device connection network corresponding to the battery network one by one, and then automatically identifying the topology map of the battery network in the energy storage system. After the battery unit 1 is replaced or interchanged, the topology map can also be automatically updated through the connection network of the network automatic topology identification device, which significantly improves the recognition efficiency of the topological structure and saves recognition time.

[0043] As one of the optional embodiments, the PHY in the network module 8 is arranged inside the network module 7, and the network port is arranged outside the network module 7 for network connection of the network automatic topology identification device.

[0044] As one of the optional embodiments, the network port is an RJ45 and / or optical fiber interface. It should be noted that the network port in this embodiment can also be other structures that can achieve network connection and information transmission, which is not limited here.

[0045] Example 2

[0046] This embodiment provides an energy storage system, including the energy storage battery network automatic topology identification device as described in Embodiment 1.

[0047] As one of the optional embodiments, the energy storage battery network automatic topology identification device and the battery unit 1 are pre-installed as components and arranged in the energy storage system.

[0048] As a specific embodiment of the present invention, the energy storage system includes A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, a total of sixteen battery units 1, forming a four-series and four-parallel energy storage system, such as Figure 3 As shown, the topology identification device provided in this embodiment is used to identify the topology structure of the battery cell 1, and the connection is performed in the following manner:

[0049] The serial downstream port 4 corresponding to A1 is connected to the serial upstream port 3 corresponding to A2, the serial downstream port 4 corresponding to A2 is connected to the serial upstream port 3 corresponding to A3, and the serial downstream port 4 corresponding to A3 is connected to the serial upstream port 3 corresponding to A4, forming an A string; the serial downstream port 4 corresponding to B1 is connected to the serial upstream port 3 corresponding to B2, the serial downstream port 4 corresponding to B2 is connected to the serial upstream port 3 corresponding to B3, and the serial downstream port 4 corresponding to B3 is connected to the serial upstream port 3 corresponding to B4, forming a B string; the serial downstream port 4 corresponding to C1 is connected to the serial upstream port 3 corresponding to C2, the serial downstream port 4 corresponding to C2 is connected to the serial upstream port 3 corresponding to C3, and the serial downstream port 4 corresponding to C3 is connected to the serial upstream port 3 corresponding to C4, forming a C string; the serial downstream port 4 corresponding to D1 is connected to the serial upstream port 3 corresponding to D2 , the serial downstream port 4 corresponding to D2 is connected to the serial upstream port 3 corresponding to D3, and the serial downstream port 4 corresponding to D3 is connected to the serial upstream port 3 corresponding to D4, forming a D series; in addition, the parallel downstream port 6 of A1 is connected to the parallel upstream port 5 of B1, the parallel downstream port 6 of B1 is connected to the parallel upstream port 5 of C1, the parallel downstream port 6 of C1 is connected to the parallel upstream port 5 of D1, the parallel downstream port 6 of A4 is connected to the parallel upstream port 5 of B4, the parallel downstream port 6 of B4 is connected to the parallel upstream port 5 of C4, and the parallel downstream port 6 of C4 is connected to the parallel upstream port 5 of D4, thereby making the topology identification device corresponding to the battery cell 1 form the same connection mode as the battery cell 1, and the topology structure of the battery cell 1 in the energy storage system can be obtained by identifying the topology structure of the network module 7. The identification of the topology structure of the network module 7 can refer to the prior art and is not limited here.

[0050] As an optional embodiment, the battery topology of the above four-series-four-parallel energy storage system is installed and automatically identified in the following manner:

[0051] 1. As attached Figure 2 As shown, the battery unit 1 is first connected into a four-string topology structure of A1-A4, B1-B4, C1-C4, and D1-D4;

[0052] 2. After the four-string topology structure is installed, the energy storage battery network automatic topology identification device pre-installed on each battery unit 1 is connected in the order of the battery units 1. For example, the highest point battery unit 1A1, its corresponding series downstream port 4 is connected to the corresponding series upstream port 3 of A2, and its corresponding parallel downstream port 6 is connected to the corresponding parallel upstream port 5 of B1;

[0053] 3. After the energy storage battery network automatic topology identification device pre-installed on A1 is connected, the parallel downstream port 6 corresponding to B1 is connected to the parallel upstream port 5 of C1, the series downstream port 4 corresponding to A2 is connected to the series upstream port 3 corresponding to A3, and the energy storage battery network automatic topology identification devices pre-installed on the remaining battery units 1 are connected in sequence according to the above connection method;

[0054] 4. When the connection is completed, the energy storage battery network automatic topology identification device pre-installed on the battery unit 1 performs network detection. When it detects that there are no other energy storage battery network automatic topology identification devices connected to its corresponding serial uplink port 3 and parallel uplink port 5, the energy storage battery network automatic topology identification device defines itself as a host, marks itself as A1, and assigns itself an IP address: 192.168.1.1;

[0055] 5. After completing the host customization, host A1 broadcasts externally through its own serial downstream port 4 and parallel downstream port 6. When receiving the returned message, the energy storage battery network automatic topology identification device connected to A1 serial downstream port 4 is marked as A2, and the IP address is assigned: 192.168.1.2; at the same time, the energy storage battery network automatic topology identification device connected to A1 parallel downstream port 6 is marked as B1, and the IP address is assigned: 192.168.2.1; it should be noted that when receiving the message returned by the serial downstream port 4, A2 is marked and the IP address is assigned, and when receiving the message returned by the parallel downstream port 6, B1 is marked and the IP address is assigned;

[0056] 6. After A2 detects that it has been assigned an IP address, it broadcasts to the outside through its serial downstream port 4 and parallel downstream port 6. In this case, only the serial downstream port 4 receives the returned message, and marks its corresponding energy storage battery network automatic topology identification device as A3, and assigns an IP address: 192.168.1.3;

[0057] 7. After B1 detects that it has been assigned an IP address, it broadcasts to the outside through its serial downstream port 4 and parallel downstream port 6. When it detects that the energy storage battery network automatic topology identification device is connected to its parallel downstream port 6, it is marked as C1 and assigned an IP address of 192.168.3.1. When it detects that the energy storage battery network automatic topology identification device is connected to its serial downstream port 4, it is marked as B2 and assigned an IP address of 192.168.2.2.

[0058] 8. According to the above rules, the energy storage battery network automatic topology identification devices corresponding to all battery units 1 in A1 to A4, B1 to B4, C1 to C4, and D1 to D4 are marked in sequence, and the corresponding IP addresses are assigned;

[0059] 9. When the serial downstream port 4 and the parallel downstream port 6 of the energy storage battery network automatic topology identification device corresponding to the current battery unit 1 cannot detect the energy storage battery network automatic topology identification device connected to it, it means that the current battery unit 1 is the terminal component of the topology structure, and the network topology is formed; and the marks and IP addresses of each energy storage battery network automatic topology identification device in the topology structure are summarized to the host A1 through the corresponding upstream port in turn;

[0060] 10. Host A1 counts all IP addresses and uses the relevant rules of IP addresses (such as Figure 5 ) infers the connection rule of the battery unit 1, and thereby forms a topological map of the energy storage battery network automatic topology identification device, which is the same as the topological map of the battery unit 1 in the energy storage system.

[0061] Through the above installation and automatic topology identification method, after power-on, the system automatically generates a location topology map of the battery or battery module according to the network location, which is simple and convenient.

[0062] If a battery cell 1 is replaced in the energy storage system, it is only necessary to connect the network cable of the corresponding network port according to the corresponding rules, and the overall connection relationship of all battery cells 1 in the energy storage system can be automatically regenerated, ensuring the timeliness and accuracy of topological structure identification.

[0063] Although the utility model is disclosed as above, the utility model is not limited thereto. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, so the scope of protection of the utility model should be based on the scope defined by the claims.

Claims

1. An automatic topology identification device for an energy storage battery network, characterized in that: include: A network module (7) and a power supply line (2), wherein the network module (7) and the battery unit (1) in the energy storage system are arranged in a one-to-one correspondence, and the power supply line (2) is connected to the battery unit (1) corresponding to the network module (7), and the network module (7) is powered by the battery unit (1); The network module (7) comprises a plurality of network ports, wherein the network ports are used to connect to network ports of adjacent network modules (7), so that adjacent network modules (7) are connected in series and / or in parallel, and the connection method of the network port of each network module (7) is the same as the connection method of the corresponding battery unit (1) in the energy storage system.

2. The automatic topology identification device for energy storage battery network according to claim 1, characterized in that: Each network module (7) comprises four network ports, namely a serial uplink port (3), a serial downlink port (4), a parallel uplink port (5) and a parallel downlink port (6). The serial uplink port (3) is used to connect to an uplink network interface, or the serial uplink port (3) is used to connect to a serial downlink port (4) of a previous network module (7) to form a serial connection; the serial downlink port (4) is used to connect to a downlink network interface, or the serial downlink port (4) is used to connect to a serial uplink port (3) of a subsequent network module (7) to form a serial connection; the parallel uplink port (5) is used to connect to a parallel downlink port (6) of a previous network module (7) to form a parallel connection; and the parallel downlink port (6) is used to connect to a parallel uplink port (5) of a subsequent network module (7) to form a parallel connection.

3. The automatic topology identification device for energy storage battery network according to claim 1, characterized in that: Each network module (7) contains a relatively independent MAC address.

4. The automatic topology identification device for energy storage battery network according to claim 2, characterized in that: The network module (7) comprises a network module (8), a single-chip microcomputer (9) and a power module (10); the network module (8) comprises a PHY and a network port; the network module (8) has four network modules, wherein the network ports are a serial uplink port (3), a serial downlink port (4), a parallel uplink port (5) and a parallel downlink port (6); the network port in each network module (8) is connected to the single-chip microcomputer (9) via its PHY; the single-chip microcomputer (9) is connected to the power module (10); and the power supply line (2) is connected to the power module (10).

5. The automatic topology identification device for energy storage battery network according to claim 4, characterized in that: The PHY in the network module (8) is arranged inside the network module (7), and the network port is arranged outside the network module (7) and is used for network connection of the network automatic topology identification device.

6. The automatic topology identification device for energy storage battery network according to any one of claims 1 to 5, characterized in that: The network port is an RJ45 and / or optical fiber interface.

7. An energy storage system, characterized in that: It comprises the automatic topology identification device for energy storage battery network as described in any one of claims 1-6.

8. The energy storage system according to claim 7, characterized in that: The energy storage system comprises sixteen battery units (1), namely A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3 and D4, forming a four-series and four-parallel system. The energy storage battery network automatic topology identification device in the energy storage system is connected in the following manner: the serial downlink port (4) corresponding to A1 is connected to the serial uplink port (3) corresponding to A2, and the serial downlink port (4) corresponding to A2 is connected to the serial uplink port (3) corresponding to A3. , the serial downlink port (4) corresponding to A3 is connected to the serial uplink port (3) corresponding to A4, forming a series A; the serial downlink port (4) corresponding to B1 is connected to the serial uplink port (3) corresponding to B2, the serial downlink port (4) corresponding to B2 is connected to the serial uplink port (3) corresponding to B3, and the serial downlink port (4) corresponding to B3 is connected to the serial uplink port (3) corresponding to B4, forming a series B; the serial downlink port (4) corresponding to C1 is connected to the serial uplink port (3) corresponding to C2, and the serial downlink port (4) corresponding to C2 is connected to The serial uplink port (3) corresponding to C3 is connected, the serial downlink port (4) corresponding to C3 is connected to the serial uplink port (3) corresponding to C4, forming a C series; the serial downlink port (4) corresponding to D1 is connected to the serial uplink port (3) corresponding to D2, the serial downlink port (4) corresponding to D2 is connected to the serial uplink port (3) corresponding to D3, and the serial downlink port (4) corresponding to D3 is connected to the serial uplink port (3) corresponding to D4, forming a D series; in addition, the parallel downlink port (6) of A1 is connected to the parallel uplink port (5) of B1 The parallel downlink port (6) of B1 is connected to the parallel uplink port (5) of C1, the parallel downlink port (6) of C1 is connected to the parallel uplink port (5) of D1, the parallel downlink port (6) of A4 is connected to the parallel uplink port (5) of B4, the parallel downlink port (6) of B4 is connected to the parallel uplink port (5) of C4, and the parallel downlink port (6) of C4 is connected to the parallel uplink port (5) of D4, so that the topology identification device corresponding to the battery unit (1) forms the same connection mode as the battery unit (1).

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