Battery system

Abstract

The utility model provides a battery system, relates to the technical field of energy storage equipment, and is used for solving the technical problems of resource waste and cost increase when a small battery system is managed based on a three-level battery management system. The battery system comprises two battery clusters, and control units and energy storage converters corresponding to the battery clusters; the two battery clusters are connected in parallel, each battery cluster comprises a plurality of battery packs and sampling units corresponding to the battery packs, the sampling units are in communication connection with the control unit, and the sampling units detect the states of the battery packs and transmit the obtained state information to the control unit; wherein one control unit is configured as a host, the other control unit is configured as a slave in communication connection with the host, and each control unit is in communication connection with the corresponding energy storage converter. The battery system provided by the utility model is used for energy storage and power supply.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage equipment, and in particular to a battery system. Background Art

[0002] Currently, most large battery systems use a three-level battery management system (BMS) to monitor the status of the battery.

[0003] The first-level BMS manages a single battery module, monitors the battery status (voltage, temperature, etc.), and provides a communication interface for the battery. The second-level BMS controls, manages, detects or calculates the electrical and thermal parameters of a single battery cluster, has fault diagnosis and automatic protection functions, and is an electronic device that can provide communication with other devices. Each battery cluster includes multiple battery modules, which are also called battery packs.

[0004] The three-level BMS manages a battery array system consisting of one or more parallel battery clusters, which are connected to the same power conversion system and can control the input and output of the battery array system as a whole, summarize and display the battery status information (voltage, current, temperature, etc.), and provide a communication interface for the battery system. However, a small battery system includes two battery clusters. If a three-level BMS is used for system management, there will be a waste of resources and increased costs. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a battery system, which can use a two-level battery management system to monitor a battery system having two battery clusters, so as to achieve the purpose of saving resources and saving costs.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] An embodiment of the present application provides a battery system, including two battery clusters and a control unit and an energy storage inverter corresponding to each of the battery clusters; the two battery clusters are connected in parallel, each of the battery clusters includes a plurality of battery packs and a sampling unit corresponding to each of the battery packs, the sampling unit is communicatively connected to the control unit, the sampling unit detects the status of the battery pack and transmits the acquired status information to the control unit; one of the control units is configured as a host, and the other control unit is configured as a slave communicatively connected to the host, and each of the control units is communicatively connected to the corresponding energy storage inverter.

[0008] In an optional embodiment, the battery system further includes a thermal balance component respectively connected to the control units for communication, the thermal balance component being configured as a slave connected to the host for communication; the control unit is preset with a temperature threshold; the sampling unit collects the actual temperature of each battery pack and transmits it to the control unit; the control unit is constructed to control the working state of the energy storage inverter and the thermal balance component according to a comparison result between the actual temperature and the temperature threshold.

[0009] In an optional embodiment, the control unit is preset with a low temperature threshold; the control unit is constructed to control the energy storage inverter to shut down and control the thermal balance component to heat the battery pack when the actual temperature is less than or equal to the low temperature threshold.

[0010] In an optional embodiment, the control unit is preset with a high temperature threshold; the control unit is constructed to control the energy storage inverter to shut down and control the thermal balance component to cool the battery pack when the actual temperature is greater than or equal to the high temperature threshold.

[0011] In an optional embodiment, the heat balance component includes a circulation pipeline and a circulation medium; the circulation pipeline is arranged below the battery packs of the two battery clusters, and the circulation medium flows in the circulation pipeline.

[0012] In an optional embodiment, the battery cluster further includes a smoke alarm; the smoke alarm is communicatively connected to the control unit and transmits the smoke information collected by the smoke alarm to the control unit; the control unit is configured to control the energy storage inverter to shut down when it receives the smoke alarm information.

[0013] In an optional embodiment, the battery system includes a first battery cluster, a second battery cluster, a first control unit and a second control unit; the first battery cluster and the second battery cluster are connected in parallel, the first control unit is communicatively connected to the first battery cluster, and the second control unit is communicatively connected to the second battery cluster; the first control unit is communicatively connected to the second control unit, and the status information of the first battery cluster received by the first control unit can be shared with the second control unit; and the status information of the second battery cluster received by the second control unit can be shared with the first control unit.

[0014] In an optional embodiment, the first control unit of the first battery cluster is configured as a host, and the thermal balance component and the second control unit are configured as slaves; or the second control unit is configured as a host, and the thermal balance component and the first control unit are configured as slaves.

[0015] In an optional embodiment, at least one of the control units includes an interface for receiving fire alarm warning information; the control unit is configured to control the corresponding energy storage converter to shut down after receiving the fire alarm warning information.

[0016] In an optional embodiment, the first control unit and the second control unit are both provided with an interface for receiving fire alarm warning information; the first control unit is configured so that after it receives the fire alarm warning information, it controls the corresponding energy storage inverter to shut down, and transmits the fire alarm warning information to the second control unit; the second control unit is configured so that after it receives the fire alarm warning information, it controls the corresponding energy storage inverter to shut down, and transmits the fire alarm warning information to the first control unit.

[0017] Compared with the related art, the battery system provided by the embodiment of the present application has the following advantages:

[0018] The battery system provided in an embodiment of the present application includes two parallel battery clusters, and each battery cluster includes multiple battery packs and sampling units corresponding to each battery pack (which can be regarded as a primary battery management system), and each battery cluster is provided with a control unit (which can be regarded as a secondary management system) and an energy storage inverter.

[0019] The two control units are communicatively connected with each other, and the control unit is communicatively connected with its corresponding sampling unit. One of the control units can be configured as a host and the other control unit can be configured as a slave to form status information sharing between the battery clusters and a linkage protection mechanism between the host and the slave.

[0020] Compared with the related art of using a three-level battery management system to manage a battery system with two parallel battery clusters, it is necessary to set up a control unit of the three-level battery management system (referred to as the three-level control unit) to summarize the status information of the control units in each secondary battery management system (referred to as the secondary control unit) and transmit the control command to the secondary control unit.

[0021] However, the battery system in the embodiment of the present application forms a linkage protection mechanism between the two secondary control units, and there is no need to set up a tertiary control unit, thereby realizing the use of a secondary battery management system to monitor the battery system with two battery clusters, which can save resources and costs.

[0022] In addition to the technical problems solved by the embodiments of the present disclosure, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of the technical solutions described above, other technical problems that can be solved by the battery system provided by the embodiments of the present disclosure, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0024] Figure 1 Schematic diagram of the communication connection of the battery system provided in the embodiment of the present application Figure 1 ;

[0025] Figure 2 Schematic diagram of the communication connection of the battery system provided in the embodiment of the present application Figure 2 ;

[0026] Figure 3 A schematic diagram of the communication connection between the battery system provided in an embodiment of the present application and its surrounding fire-fighting equipment.

[0027] Description of reference numerals:

[0028] 10- first battery cluster;

[0029] 11-first sampling unit; 12-first battery pack;

[0030] 20- a first control unit;

[0031] 30- first energy storage converter;

[0032] 40-heat balance component;

[0033] 50 - second battery cluster;

[0034] 51 - second sampling unit; 52 - second battery pack;

[0035] 60 - a second control unit;

[0036] 70- second energy storage converter;

[0037] 100-Battery system;

[0038] 200-Firefighting equipment. DETAILED DESCRIPTION

[0039] As described in the background technology, there are technical problems of waste of resources and increased costs when managing a small battery system based on a three-level battery management system. The inventors have found that the reason for this problem is that compared with the management of a battery system with two parallel battery clusters by a three-level battery management system, a three-level control unit needs to be set up to summarize the status information of each secondary control unit, and the three-level control unit transmits the control command to the secondary control unit. The system is relatively complex, resulting in waste of resources and increased costs.

[0040] In response to the above technical problems, an embodiment of the present application provides a new battery system, which includes two parallel battery clusters, each battery cluster includes multiple battery packs and sampling units corresponding to each battery pack, and each battery cluster is provided with a control unit and an energy storage inverter.

[0041] The two control units are communicatively connected with each other, and the control unit and its corresponding sampling unit are communicatively connected. One of the control units can be configured as a host and the other control unit can be configured as a slave, so that status information sharing between the two battery clusters and a linkage protection mechanism between the host and the slave can be realized.

[0042] With such a configuration, the battery system provided in the embodiment of the present application adopts a linkage protection mechanism between the host and the slave based on two control units, and there is no need to set up a three-level control unit, thereby realizing the use of a two-level battery management system to monitor the battery system with two battery clusters, which can save resources and save costs.

[0043] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0044] like Figure 1 and Figure 2 As shown, the battery system 100 provided in the embodiment of the present application includes two battery clusters, wherein the two battery clusters are arranged in parallel, each battery cluster includes a plurality of battery packs and a plurality of sampling units, and each battery pack corresponds to a sampling unit. For example, each battery cluster includes 9 battery packs and 9 sampling units, and each battery pack is communicatively connected to a sampling unit.

[0045] Furthermore, the sampling unit in the embodiment of the present application is configured as a part of a first-level battery management system, which manages a single battery module and monitors the battery status (voltage, temperature, etc.), that is, the sampling unit is used to monitor the operating status of the corresponding battery pack to collect status information of the battery pack, and its status information includes but is not limited to temperature, voltage, etc.

[0046] Each battery cluster is provided with a control unit and an energy storage converter, and the control unit is respectively connected to each sampling unit in communication; for example, the control unit and the sampling unit are connected to each other in communication via a local area network. The status information of each battery pack collected by the sampling unit can be transmitted to the control unit, and the control unit is connected to the energy storage converter in communication, for example, each control unit communicates with the energy storage converter via an RS485 communication protocol.

[0047] It should be understood that the control unit in the embodiment of the present application is configured as a part of a secondary battery management system, which controls, manages, detects or calculates the electrical and thermal related parameters of a single battery cluster, has fault diagnosis and automatic protection functions, and the secondary battery management system is capable of communicating with electronic devices that provide communication with other devices.

[0048] Furthermore, the two battery clusters correspond to two control units respectively, and the control units are communicatively connected to each other. One of the control units is configured as a host, and the other control unit is configured as a slave communicatively connected to the host.

[0049] In the embodiment of the present application, a control unit receives status information of a battery pack under its management, and can share the status information of the battery pack with another control unit to form status information sharing between battery clusters and a linkage protection mechanism between the host and the slave.

[0050] For example, the embodiment of the present application is described by taking the battery system 100 as an example including a first battery cluster 10, a second battery cluster 50, a first control unit 20 and a second control unit 60. The first battery cluster 10 is connected in parallel with the second battery cluster 50, the first battery cluster 10 includes a plurality of first battery packs 12 and a first sampling unit 11 corresponding to each first battery pack 12, and the second battery cluster 50 includes a plurality of second battery packs 52 and a second sampling unit 51 corresponding to each second battery pack 52.

[0051] The first control unit 20 is connected in communication with each first sampling unit 11, and the first sampling unit 11 can monitor the first battery pack 12, and the acquired status information is transmitted to the first control unit 20. Further, the first control unit 20 is connected in communication with the second control unit 60, and the status information of the first battery cluster 10 received by the first control unit 20 can be shared with the second control unit 60. Conversely, the status information of the second battery cluster 50 received by the second control unit 60 can be shared with the first control unit 20, which will not be repeated here.

[0052] Furthermore, in the embodiment of the present application, the first control unit 20 can be configured as a host and the second control unit 60 can be configured as a slave; or the second control unit 60 can be configured as a host and the first control unit 20 can be configured as a slave, which is not limited in the embodiment of the present application.

[0053] When the operating state of a battery pack in a battery cluster is in a fault state or other alarm occurs, the control unit controls the energy storage inverter of the corresponding battery cluster to shut down; at the same time, the fault or alarm can be transmitted to another control unit so that the control unit controls the other energy storage inverter to shut down.

[0054] Compared with the related art that uses a three-level battery management system to manage a battery system with two parallel battery clusters, a three-level control unit is required to aggregate the status information of each secondary control unit, and then the three-level control unit transmits the control command to the secondary control unit.

[0055] However, the battery system 100 in the embodiment of the present application forms a linkage protection mechanism between the two secondary control units, and there is no need to set up a tertiary control unit, thereby realizing the use of a secondary battery management system to monitor the battery system 100 with two battery clusters, which can save resources and costs.

[0056] On the basis of the above embodiments, the battery system 100 provided in the embodiment of the present application further includes a thermal balance component 40, which is communicatively connected to each control unit, and the thermal balance component 40 is configured as a slave communicatively connected to the host.

[0057] For example, the first control unit 20 is configured as a host, and the thermal balance component 40 and the second control unit 60 are configured as slaves; or the second control unit 60 is configured as a host, and the thermal balance component 40 and the first control unit 20 are configured as slaves, and this embodiment of the application is not limited to this.

[0058] In the embodiment of the present application, the thermal balance component 40 receives a control command issued by any control unit to heat and cool each battery pack to maintain the thermal balance of the entire battery system 100 and ensure the normal operation of the battery system 100.

[0059] Specifically, in the same battery cluster, the control unit presets a temperature threshold, the acquisition unit acquires the actual temperature of each battery pack and transmits it to the control unit, the control unit compares the actual temperature with the temperature threshold, and controls the working state of the energy storage inverter and the thermal balance component 40 according to the comparison result.

[0060] In one case, the control unit presets a low temperature threshold, and when the actual temperature of the battery pack is less than or equal to the low temperature threshold, the battery pack needs to stop working. Therefore, when the actual temperature of the battery pack collected by the collection unit is less than or equal to the low temperature threshold, the control unit controls the energy storage inverter to shut down, and controls the thermal balance component 40 to heat the battery pack.

[0061] In another case, the control unit presets a high temperature threshold, and when the actual temperature of the battery pack is greater than or equal to the high temperature threshold, the battery pack needs to stop working. Therefore, when the actual temperature of the battery pack collected by the collection unit is greater than or equal to the high temperature threshold, the control unit controls the energy storage inverter to shut down, and controls the thermal balance component 40 to cool the battery pack.

[0062] For example, when the first control unit 20 is configured as a host, the second control unit 60 and the thermal balance component 40 are configured as slaves. When the actual temperature of the first battery pack 12 detected by the first sampling unit 11 received by the first control unit 20 is greater than or equal to the high temperature threshold, the first control unit 20 controls the corresponding first energy storage inverter 30 to shut down. At the same time, the thermal balance component 40 is controlled to cool the battery pack, and the control command or the actual temperature of the first battery pack 12 is transmitted to the second control unit 60, and the corresponding second energy storage inverter 70 is controlled to shut down by the second control unit 60, thereby realizing a linkage protection mechanism between the host and the slave.

[0063] Correspondingly, when the second control unit 60 as a slave receives that the actual temperature of the second battery pack 52 detected by its second sampling unit 51 is greater than or equal to the high temperature threshold, the second control unit 60 controls the corresponding second energy storage converter 70 to shut down. At the same time, the thermal balance component 40 is controlled to cool the battery pack, and the command or the actual temperature of the second battery pack 52 is transmitted to the first control unit 20 as the host, and the first control unit 20 controls the corresponding first energy storage converter 30 to shut down, thereby realizing the linkage protection mechanism between the host and the slave.

[0064] It should be noted that when the actual temperature of the battery pack is less than or equal to the low temperature threshold, the linkage protection mechanism between the first control unit 20 and the second control unit 60 can be explained with reference to the example that the actual temperature of the battery pack is greater than or equal to the high temperature threshold, and will not be repeated here.

[0065] Furthermore, the thermal balance assembly 40 in the embodiment of the present application includes a circulation pipeline, a circulation medium and a thermal management device, wherein the circulation medium flows in the circulation pipeline, and the circulation pipeline is arranged below the entire first battery cluster 10 and the second battery cluster 50, that is, the circulation pipeline is arranged at the bottom of each battery pack.

[0066] The thermal management device includes but is not limited to a heating component, a cooling component and a heat exchanger. The heat exchanger is connected to the circulation pipeline to be able to exchange heat with the circulating medium, thereby cooling and heating the circulating medium, and further achieving thermal balance of the entire battery system 100.

[0067] The battery cluster provided in the embodiment of the present application also includes a smoke alarm, and the smoke alarm is communicatively connected with the control unit and transmits the collected smoke alarm information to the control unit; the control unit is configured to control the energy storage converter to shut down when it receives the smoke alarm information.

[0068] For example, when the first control unit 20 is configured as a host, the second control unit 60 and the heat balance component 40 are configured as slaves. When the first control unit 20 receives the smoke alarm information collected by the first sampling unit 11, the first control unit 20 controls the corresponding first energy storage converter 30 to shut down. At the same time, the control command is transmitted to the second control unit 60, and the second control unit 60 controls the corresponding second energy storage converter 70 to shut down, thereby realizing the linkage protection mechanism between the host and the slave.

[0069] Correspondingly, when the second control unit 60 as a slave receives the smoke alarm information from its second sampling unit 51, the second control unit 60 controls the corresponding second energy storage converter 70 to shut down. At the same time, the control command is transmitted to the first control unit 20 as the host, and the first control unit 20 controls the corresponding first energy storage converter 30 to shut down, thereby realizing the linkage protection mechanism between the host and the slave.

[0070] like Figure 3 As shown, on the basis of the above embodiments, the battery system 100 provided in the embodiment of the present application is also provided with a fire-fighting device 200 around its application environment, so that it can extinguish the fire when a fire occurs in the battery system 100. It should be understood that the fire-fighting device 200 can not only extinguish the fire of the battery system 100, but also extinguish the fire of other equipment. Therefore, when a fire alarm occurs, it needs to be synchronized to the battery system 100.

[0071] Specifically, at least one control unit in the battery system 100 is provided with an interface for receiving fire alarm warning information, through which the fire alarm warning information can be received, so that the control unit controls the energy storage converter to shut down.

[0072] For example, the first control unit 20 is provided with an interface for receiving fire alarm warning information. After the first control unit 20 is configured to receive the fire alarm warning information, it controls the first energy storage inverter 30 to shut down, and transmits the fire alarm warning information to the second control unit 60, and then the second control unit 60 controls the second energy storage inverter 70 to shut down.

[0073] And / or, the second control unit 60 is provided with an interface for receiving fire alarm warning information. After the second control unit 60 receives the fire alarm warning information, it controls the second energy storage inverter 70 to shut down, and transmits the fire alarm warning information to the first control unit 20, and then the first control unit 20 controls the first energy storage inverter 30 to shut down.

[0074] Preferably, the first control unit 20 and the second control unit 60 in the embodiment of the present application are respectively provided with interfaces for receiving fire alarm warning information. When the first control unit 20 acts as a host and reads the fire alarm warning information, the first control unit 20 controls the first energy storage converter 30 to shut down. At the same time, the first control unit 20 communicates with the second control unit 60 as a slave, and the second control unit 60 controls the second energy storage converter 70 to shut down.

[0075] Similarly, when the second control unit 60 acts as a host and reads the fire alarm warning information, the second control unit 60 controls the second energy storage converter 70 to shut down. At the same time, the second control unit 60 communicates with the first control unit 20 as a slave, and the first control unit 20 controls the first energy storage converter 30 to shut down. In this way, linkage protection between the host and the slave can be achieved.

[0076] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0077] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0078] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0079] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery system, characterized in that: It includes two battery clusters and a control unit and an energy storage converter corresponding to each of the battery clusters; Two battery clusters are connected in parallel, each of the battery clusters includes a plurality of battery packs and a sampling unit corresponding to each of the battery packs, the sampling unit is communicatively connected with the control unit, the sampling unit detects the status of the battery pack and transmits the acquired status information to the control unit; One of the control units is configured as a host, and the other control unit is configured as a slave connected to the host for communication, and each control unit is connected to the corresponding energy storage converter for communication.

2. The battery system according to claim 1, characterized in that: The battery system further comprises a heat balance component respectively connected to each of the control units in communication, the heat balance component being configured as a slave connected to the host in communication; The control unit is preset with a temperature threshold, and the sampling unit collects the actual temperature of each battery pack and transmits it to the control unit; The control unit is configured to control the working states of the energy storage converter and the heat balance component according to a comparison result between the actual temperature and the temperature threshold.

3. The battery system according to claim 2, characterized in that: The control unit is preset with a low temperature threshold; The control unit is configured to control the energy storage converter to shut down and control the heat balance component to heat the battery pack when the actual temperature is less than or equal to the low temperature threshold.

4. The battery system according to claim 2, characterized in that: The control unit is preset with a high temperature threshold; The control unit is configured to control the energy storage converter to shut down and control the heat balance component to cool the battery pack when the actual temperature is greater than or equal to the high temperature threshold.

5. The battery system according to any one of claims 2 to 4, characterized in that: The heat balance component includes a circulation pipeline and a circulation medium; The circulation pipeline is arranged below the battery packs of the two battery clusters, and the circulation medium flows in the circulation pipeline.

6. The battery system according to claim 1, characterized in that: The battery cluster also includes a smoke alarm; The smoke alarm is connected to the control unit for communication and transmits the collected smoke alarm information to the control unit; The control unit is configured to control the energy storage converter to shut down when it receives smoke alarm information.

7. The battery system according to claim 2, characterized in that: The battery system includes a first battery cluster, a second battery cluster, a first control unit and a second control unit; The first battery cluster and the second battery cluster are connected in parallel, the first control unit is connected in communication with the first battery cluster, and the second control unit is connected in communication with the second battery cluster; The first control unit is in communication connection with the second control unit, and the state information of the first battery cluster received by the first control unit can be shared with the second control unit; Furthermore, the status information of the second battery cluster received by the second control unit may be shared with the first control unit.

8. The battery system according to claim 7, characterized in that: The first control unit is configured as a host, and the heat balance component and the second control unit are configured as slaves; or The second control unit is configured as a host, and the heat balance component and the first control unit are configured as slaves.

9. The battery system according to claim 7, characterized in that: At least one of the control units includes an interface for receiving fire alarm warning information; The control unit is configured to control the corresponding energy storage converter to shut down after receiving fire alarm warning information.

10. The battery system according to claim 9, characterized in that: The first control unit and the second control unit are both provided with an interface for receiving fire alarm warning information; The first control unit is configured to control the corresponding energy storage converter to shut down after receiving the fire alarm warning information, and transmit the fire alarm warning information to the second control unit; The second control unit is configured to control the corresponding energy storage converter to shut down after receiving the fire alarm warning information, and transmit the fire alarm warning information to the first control unit.

Images