Fire-fighting linkage control system and method for energy storage valve

Abstract

A fire-fighting linkage control system and method for an energy storage valve. The fire-fighting linkage control system for an energy storage valve comprises: at least one energy storage control system and at least one fire-fighting control system, wherein each energy storage control system is in communication connection with the at least one fire-fighting control system; and the energy storage control system is in communication connection with an energy storage valve, the fire-fighting control system is in communication connection with a fire-fighting system, and the fire-fighting system is used for performing fire fighting on the energy storage valve. The energy storage valve comprises at least one energy storage sub-module, wherein the energy storage sub-module comprises a power module and a battery module, which are connected to each other. Consequently, the risk of thermal runaway accidents of an energy storage valve can be reduced by means of combining the linkage control between an energy storage control system and a fire-fighting control system.

Description

Energy storage valve fire linkage control system and method

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 11, 2023, with application number 202311697702.5 and invention name “Energy Storage Valve Fire Interlocking Control System and Method”, the entire contents of which are incorporated by reference into this application.

[0002] This application also claims priority to the Chinese patent application filed with the China Patent Office on April 8, 2024, with application number 202410419363.2 and invention name “Energy Storage System and Fire Control Method, Device, and Computer Equipment Thereof,” the entire contents of which are incorporated by reference into this application.

[0003] This application also claims priority to the Chinese patent application filed with the China Patent Office on April 8, 2024, with application number 202410418739.8 and invention name “Energy Storage System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0004] The present application belongs to the field of battery technology, and in particular relates to an energy storage valve fire linkage control system and method. Background Art

[0005] Energy storage valves offer advantages such as high modularity, economic benefits, and high operational reliability. They can include multiple energy storage submodules, including power modules and battery modules. Batteries are prone to thermal runaway under conditions such as short circuits, overcharge, overdischarge, or thermal abuse, generating flammable gases such as hydrogen, hydrocarbons, and carbon monoxide. In severe cases, thermal runaway accidents can even cause large-scale fires and explosions.

[0006] Therefore, it is necessary to protect the energy storage valve to reduce the risk of thermal runaway accidents.

[0007] Application Contents

[0008] In view of this, the present application provides a fire-fighting linkage control system and method for an energy storage valve, which is used to reduce the risk of thermal runaway accidents of the energy storage valve. Technical Solutions

[0009] The technical solution adopted in the embodiment of this application is:

[0010] In a first aspect, an embodiment of the present application provides an energy storage valve fire linkage control system, comprising: at least one energy storage control system and at least one fire control system, each energy storage control system being communicatively connected to at least one fire control system;

[0011] The energy storage control system is connected to the energy storage valve through communication, and the fire control system is connected to the fire protection system through communication. The fire protection system is used to extinguish the energy storage valve;

[0012] The energy storage valve includes at least one energy storage submodule, and the energy storage submodule includes a power module and a battery module connected to each other.

[0013] In some embodiments, the energy storage control system includes at least one of an energy storage valve control system, a battery management system, and a power module control system.

[0014] In some embodiments, the energy storage control system includes an energy storage valve control system, a battery management system, and a power module control system, and the fire protection control system is communicatively connected to the battery management system via the energy storage valve control system.

[0015] In some embodiments, the energy storage valve control system is communicatively connected to the battery management system via the power module control system.

[0016] In some embodiments, the fire control system includes a fire sensor.

[0017] In some embodiments, at least two fire control systems are included, and the at least two fire control systems are respectively connected to the energy storage control system.

[0018] In some embodiments, the energy storage control system includes at least two, and each energy storage control system is connected to each fire control system respectively.

[0019] In some embodiments, different fire control systems are communicatively connected to each other, and / or different energy storage control systems are communicatively connected to each other.

[0020] In some embodiments, the medium of the communication connection includes optical fiber.

[0021] In a second aspect, an embodiment of the present application provides a method for controlling a fire-fighting linkage of an energy storage valve, which is applied to an energy storage control system. The method includes:

[0022] Obtain the thermal runaway risk status of the energy storage valve;

[0023] According to the thermal runaway risk condition, the first control strategy for controlling the energy storage valve and the first fire fighting strategy for the energy storage valve are determined.

[0024] In some embodiments, obtaining a thermal runaway risk status of the energy storage valve includes:

[0025] A thermal runaway risk status of at least one of an energy storage submodule, a power module, and a battery module of the energy storage valve is obtained.

[0026] In some embodiments, obtaining a thermal runaway risk status of the energy storage valve includes:

[0027] Acquiring first data of a first battery included in the energy storage valve, the first data including at least one of a temperature and a shell expansion degree;

[0028] A thermal runaway risk condition of the first battery is determined according to the first data to obtain a thermal runaway risk condition of the energy storage valve.

[0029] In some embodiments, obtaining a thermal runaway risk status of the energy storage valve includes:

[0030] Acquiring second data of a first battery included in the energy storage valve, the second data including at least one of a combustible gas concentration, a combustion-supporting gas concentration, and an inert gas concentration;

[0031] A thermal runaway risk condition of the first battery is determined according to the second data to obtain a thermal runaway risk condition of the energy storage valve.

[0032] In some embodiments, when the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the first control strategy is to control the energy storage valve to operate normally, and the first firefighting strategy is not to perform firefighting on the energy storage valve;

[0033] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the first control strategy is to control the energy storage valve to operate normally, and the first fire fighting strategy is to extinguish the energy storage valve;

[0034] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk, and the thermal runaway risk is at the second level, the first control strategy is to perform at least one of the following actions: bypassing the energy storage submodule with the thermal runaway risk in the energy storage valve, disconnecting the power module with the thermal runaway risk from the battery module in the energy storage valve, powering off the battery module with the thermal runaway risk in the energy storage valve, locking the energy storage valve, or stopping the energy storage valve; the first firefighting strategy is to extinguish the energy storage valve;

[0035] The second level of risk severity is greater than the first level of risk severity.

[0036] In some embodiments, there are multiple energy storage control systems, one of the multiple energy storage control systems is a first primary system, and the remaining energy storage control systems in the multiple energy storage control systems are first backup systems;

[0037] Based on the thermal runaway risk condition, determine the first control strategy for controlling the energy storage valve, including:

[0038] Determine the first primary system and the first backup system;

[0039] When confirming that the first main system and the first backup system are correct, the first main system determines a first control strategy for controlling the energy storage valve according to the thermal runaway risk condition.

[0040] In a third aspect, an embodiment of the present application provides a method for controlling a fire-fighting linkage of an energy storage valve, which is applied to a fire control system. The method includes:

[0041] Obtain the thermal runaway risk status of the energy storage valve;

[0042] According to the thermal runaway risk condition, a second fire protection strategy for the energy storage valve is determined, and a second control strategy for controlling the energy storage valve is determined through an energy storage control system that is in communication with the fire protection control system.

[0043] In some embodiments, when the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the second control strategy is to control the energy storage valve to operate normally, and the second fire fighting strategy is not to fire the energy storage valve;

[0044] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the second control strategy is to control the energy storage valve to operate normally, and the second fire fighting strategy is to extinguish the energy storage valve;

[0045] If the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk, and the thermal runaway risk is at the second level, the second control strategy is to perform at least one of the following actions: bypassing the energy storage submodule with the thermal runaway risk in the energy storage valve, disconnecting the power module with the thermal runaway risk from the battery module in the energy storage valve, powering off the battery module with the thermal runaway risk in the energy storage valve, locking the energy storage valve, or stopping the energy storage valve. The second firefighting strategy is to extinguish the energy storage valve.

[0046] The second level of risk severity is greater than the first level of risk severity.

[0047] In some embodiments, the method further comprises:

[0048] When the fire protection control system performs fire protection on the energy storage valve for a time period greater than or equal to the first time period and the thermal runaway risk condition still indicates that the energy storage valve is at risk of thermal runaway, sending a warning instruction to the energy storage control system;

[0049] Among them, the early warning instruction is used by the energy storage control system to determine a third control strategy for controlling the energy storage valve. The third control strategy is to perform at least one of the following actions: control the bypass of the energy storage submodule with thermal runaway risk in the energy storage valve, control the disconnection of the power module with thermal runaway risk from the battery module in the energy storage valve, control the power-off of the battery module with thermal runaway risk in the energy storage valve, control the locking of the energy storage valve, and control the stopping of the energy storage valve.

[0050] In some embodiments, a fire control system performs fire protection on an energy storage valve, including:

[0051] The fire control system replaces the inert gas to the energy storage valve through the inert gas system.

[0052] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a program. When the program is executed by a processor, it implements the method described in the second aspect above, or implements the method described in the third aspect above. Beneficial effects

[0053] The first advantageous effect provided by the embodiments of the present application is that the energy storage control system is communicatively connected to the fire control system, so that, through the linkage control between the energy storage control system and the fire control system, energy storage valves with a risk of thermal runaway can be effectively controlled and warned in a timely manner, thereby protecting the energy storage valves, reducing the risk of thermal runaway accidents occurring in the energy storage valves, and improving the reliability and stability of the operation of the energy storage valves.

[0054] It can be understood that the beneficial effects of the second to fourth aspects of the present application can be found in the relevant description of the first aspect of the present application and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustration purposes only and are not to be construed as limiting the present application. The same reference numerals are used throughout the accompanying drawings to represent the same components.

[0056] FIG1 is a schematic structural diagram of an energy storage valve fire linkage control system provided in an embodiment of the present application;

[0057] FIG2 is another structural diagram of the energy storage valve fire linkage control system provided in an embodiment of the present application;

[0058] FIG3 is a schematic diagram of a primary-backup system switching according to an embodiment of the present application;

[0059] FIG4 is a flow chart of a control method of an energy storage valve fire linkage control system according to an embodiment of the present application;

[0060] FIG5 is another structural diagram of the energy storage valve fire linkage control system provided in an embodiment of the present application;

[0061] FIG6 is another structural diagram of the energy storage valve fire linkage control system provided in an embodiment of the present application;

[0062] FIG7 is another structural diagram of the energy storage valve fire linkage control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0063] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0066] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0067] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent the following three situations: X exists alone, X and Y exist simultaneously, and Y exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0068] In an embodiment of the present application, the energy storage valve includes at least one energy storage submodule, each energy storage submodule includes at least one battery module and at least one power module, and the battery modules and the power modules are connected to each other. Each battery module includes at least one battery. The battery is placed in an electrical cabinet, and each electrical cabinet contains at least one battery. As an example, taking the battery module as a unit, each electrical cabinet contains one or more battery modules. As another example, taking the electrical cabinet as a unit, each battery module is placed in one or more electrical cabinets. For example, the electrical cabinet corresponds to an electrical cabinet control and protection system, the battery module corresponds to a battery module control and protection system, the power module corresponds to a power module control and protection system, and the energy storage valve corresponds to an energy storage valve control and protection system. For another example, the battery module control and protection system may include an electrical cabinet control and protection system.

[0069] To reduce the risk of fire and explosion accidents involving energy storage valves, the related art provides a fire protection system for energy storage valves. As an example, the fire protection system is used to extinguish a fire in the energy storage valve, for example, by spraying a fire extinguishing agent. As another example, the fire protection system is used to reduce the risk of fire and explosion accidents involving energy storage valves, for example, by filling the energy storage valve's environment with nitrogen, thereby placing the energy storage valve in an inert gas environment to reduce the risk of combustion, thereby reducing the risk of fire and explosion accidents involving the energy storage valve.

[0070] However, the fire protection systems provided by the aforementioned related technologies solely monitor battery fire risks and implement appropriate fire-fighting measures. In other words, the systems used to protect the energy storage valves provided by the related technologies are independent systems that are not interconnected with other systems and cannot respond to alarms from other systems. This leaves the risk of fire and explosion accidents involving the energy storage valves relatively high.

[0071] In view of this, an embodiment of the present application provides an energy storage valve fire linkage control system, including: at least one energy storage control system and at least one fire control system, each energy storage control system is communicatively connected to at least one fire control system.

[0072] The energy storage control system is in communication with the energy storage valve and can obtain the thermal runaway risk status of the energy storage valve and determine a control strategy for the energy storage valve based on the thermal runaway risk status of the energy storage valve. For example, if the first battery in the energy storage valve is at risk of thermal runaway, the first battery can be controlled to power off and exit. The energy storage control system can also determine a fire protection strategy for the energy storage valve based on the thermal runaway risk status of the energy storage valve. For example, if the first battery in the energy storage valve is at risk of thermal runaway, an inert gas can be injected into the area around the first battery. The energy storage control system can send the fire protection strategy to the fire protection control system to which it is in communication, and the fire protection control system can control the fire protection system to execute the fire protection strategy.

[0073] The energy storage control system may include at least one of an energy storage valve control system, a battery management system, and a power module control system. The energy storage valve control system may, for example, be the aforementioned energy storage valve control and protection system or other systems capable of controlling the energy storage valve; the battery management system may, for example, be the aforementioned battery module control and protection system or other systems capable of controlling the battery; and the power module control system may, for example, be the aforementioned power module control and protection system or other systems capable of controlling the power module. For ease of understanding, the embodiments of this application are described using the energy storage valve control and protection system, the battery module control and protection system, and the power module control and protection system as examples.

[0074] The fire control system can be connected to the fire protection system in communication. It can control the fire protection system to execute the fire protection strategy based on the fire protection strategy obtained from the energy storage control system to extinguish the energy storage valve. The fire control system can also obtain the thermal runaway risk status of the energy storage valve, determine the fire protection strategy for the energy storage valve based on the thermal runaway risk status of the energy storage valve, and then control the fire protection system to execute the fire protection strategy to extinguish the energy storage valve. For example, when there is a risk of thermal runaway of the first battery in the energy storage valve, inert gas can be filled around the first battery. The above-mentioned first battery can be any battery in the energy storage valve. For ease of understanding, the embodiments of this application will be mainly explained by taking the thermal runaway risk control of the first battery in the energy storage valve as an example.

[0075] The fire protection system may include an inert gas system and / or other fire protection systems, such as a fire extinguishing system; correspondingly, the fire control system may include an inert gas control system and / or other fire control systems, such as a fire extinguishing control system. The fire protection system and the fire control system may be independent systems or integrated into the same system. For example, the inert gas system and the inert gas control system may be integrated into an inert gas protection system. For ease of explanation, the embodiments of this application use an inert gas protection system as an example for illustrative purposes.

[0076] The energy storage valve fire linkage control system provided in the embodiment of the present application is a system in which the energy storage control system is communicatively connected to the energy storage valve, thereby obtaining the thermal runaway risk status of the energy storage valve and determining the control strategy for the energy storage valve accordingly. This reduces the risk of thermal runaway inside the energy storage valve (for example, by controlling the first battery to power off and exit to reduce the risk of internal thermal runaway spreading); the fire control system is communicatively connected to the fire protection system, thereby enabling the fire protection system to extinguish the energy storage valve and reduce the risk of thermal runaway outside the energy storage valve (for example, by filling it with inert gas to reduce the risk of external thermal runaway such as fire and explosion). Furthermore, the energy storage control system and the fire protection control system are communicatively connected, thereby achieving linkage control, so that the energy storage valve with a risk of thermal runaway can be effectively controlled in a timely manner, thereby ensuring reliable and stable operation of the energy storage valve.

[0077] The batteries in the embodiments of the present application may be secondary batteries. The batteries in the embodiments of the present application may be used in electrical devices that use the battery as a power source or in various energy storage systems that use the battery as an energy storage element. Electrical devices may include, but are not limited to, mobile phones, tablet computers, laptop computers, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, and the like. Energy storage systems include various energy storage valves, such as high-pressure direct-mounted energy storage valves.

[0078] In order to illustrate the technical solution described in this application, specific embodiments are provided below.

[0079] Please refer to Figure 1. Some embodiments of the present application provide an energy storage valve fire linkage control system, including: at least one energy storage valve control and protection system and at least one inert gas protection system, each energy storage valve control and protection system is communicatively connected to the at least one inert gas protection system.

[0080] As shown in Figure 1 , n is an integer equal to or greater than 1. As an example, the communication connection can be achieved through an optical fiber or other communication cable connection to achieve data exchange.

[0081] The energy storage valve control and protection system is used to detect the thermal runaway risk status of the first battery and, based on this, determine a control strategy for controlling the first battery. For example, the control strategy may be to power off the first battery if the first battery is at risk of thermal runaway. This reduces the risk of thermal runaway spreading in the first battery if the first battery is at risk of thermal runaway. For example, the energy storage valve control and protection system may directly power off the first battery or trigger the battery module control and protection system to power off the first battery.

[0082] The energy storage valve control and protection system is further configured to determine a firefighting strategy for the first battery based on the thermal runaway risk of the first battery. The energy storage valve control and protection system may transmit the firefighting strategy to the inert gas protection system, which then uses the inert gas protection system to extinguish the first battery.

[0083] The inert gas protection system can implement fire protection for the first battery based on the fire protection strategy obtained from the energy storage valve control protection system. It can also obtain the thermal runaway risk status of the first battery and determine the fire protection strategy for the first battery based on the thermal runaway risk status of the first battery. For example, the fire protection strategy may be to fill the area around the first battery when there is a risk of thermal runaway. This can reduce the risk of fire in the first battery when there is a risk of fire in the first battery. For example, by filling the electrical cabinet to which the first battery belongs, the concentration of combustible gas and combustion-supporting gas in the electrical cabinet can be reduced to reduce the risk of fire in the first battery. For example, the inert gas protection system can activate the inert gas replacement mode to output inert gas to the outside, thereby achieving the goal of filling the electrical cabinet to which the first battery belongs with inert gas.

[0084] Since each energy storage valve control and protection system is communicatively connected to at least one inert gas protection system, the energy storage valve control and protection system and the inert gas protection system can share information about whether the first battery has a thermal runaway risk, so that the energy storage valve control and protection system and the inert gas protection system can simultaneously execute the corresponding protection measures based on the information about whether the first battery has a thermal runaway risk, thereby achieving the purpose of linkage control.

[0085] The above-mentioned energy storage valve fire linkage control system can achieve effective control and early warning of the first battery with thermal runaway risk in a timely manner through linkage control between the energy storage valve control protection system and the inert gas protection system, thereby protecting the energy storage valve and ensuring reliable and stable operation of the energy storage valve.

[0086] In the embodiment of the present application, the thermal runaway risk may be used to reflect the internal risk and / or external risk of the battery.

[0087] For example, thermal runaway risks include: thermal runaway risks caused by excessively high battery temperatures. For example, thermal runaway risks include: fire risks caused by excessively high concentrations of combustion-supporting gases (such as oxygen concentration) within the battery cabinet, or fire risks caused by excessively high concentrations of combustible gases (such as hydrogen generated by thermal runaway) within the battery cabinet, or fire risks caused by excessively low concentrations of inert gases (such as nitrogen) within the battery cabinet.

[0088] Therefore, as an example, whether the battery has a thermal runaway risk can be determined by detecting the battery temperature. For example, when the battery temperature is greater than or equal to a first temperature threshold, it indicates that the battery has a thermal runaway risk; otherwise, it indicates that the battery does not have a thermal runaway risk. As an example, whether the battery has a thermal runaway risk can be determined by detecting the concentration of combustion-supporting gas, combustible gas, or inert gas in the electrical cabinet to which the battery belongs. For example, when the combustible gas concentration is greater than or equal to a first concentration threshold, it indicates that the battery has a thermal runaway risk; otherwise, it indicates that the battery does not have a thermal runaway risk.

[0089] In the embodiments of the present application, the energy storage valve control and protection system, the inert gas protection system, the power module control and protection system, the battery module control and protection system, or other systems may be used to detect and determine whether the battery is at risk of thermal runaway. The energy storage valve control and protection system may determine whether the battery is at risk of thermal runaway by obtaining the detection and judgment results.

[0090] For example, the battery module control and protection system can determine whether the battery is at risk of thermal runaway by detecting the battery temperature and send the detection result to the energy storage valve control and protection system. For example, the inert gas protection system can determine whether the battery is at risk of thermal runaway by detecting the gas concentration in the electrical cabinet to which the battery belongs and send the detection result to the energy storage valve control and protection system.

[0091] It is understood that while this description primarily uses the example of whether a battery in an energy storage valve is at risk of thermal runaway as an example, in some embodiments, it is also possible to detect whether a power module is at risk of thermal runaway, such as excessive temperature rise, and the energy storage valve control and protection system can use this information to determine the thermal runaway risk of the energy storage valve. The specific detection methods are similar to those for batteries, such as detecting the temperature of the power module and / or the concentration of various gases, and are not further detailed here.

[0092] In some embodiments, the entire energy storage submodule can be tested to determine whether it presents a risk of thermal runaway, such as excessive temperature rise. The energy storage valve control and protection system can then determine the thermal runaway risk of the energy storage valve. The specific testing methods can be combined with relevant aspects of battery testing and power module testing, and will not be further elaborated here.

[0093] The above-mentioned energy storage valve fire linkage control system can monitor the internal and external risks of the battery, and combine the linkage control between the energy storage valve control protection system and the inert gas protection system, so that the first battery with thermal runaway risk can be effectively controlled and warned in a timely manner, thereby protecting the energy storage valve and ensuring reliable and stable operation of the energy storage valve.

[0094] In some embodiments of the present application, the energy storage valve control and protection system is further configured to perform at least one of the following actions when there is a risk of thermal runaway in the first battery:

[0095] Control the power-off and exit of the electric cabinet to which the first battery belongs, control the bypass of the energy storage submodule to which the first battery belongs, control the locking of the energy storage valve, and control the power-off and exit of all electric cabinets included in the energy storage submodule to which the first battery belongs.

[0096] For example, when it is determined that the first battery has a risk of thermal runaway, the battery module control and protection system can be triggered to control the power-off and exit of the electrical cabinet to which the first battery belongs, so as to protect the electrical cabinet in time. The power module control and protection system can also be triggered to control the bypass of the energy storage sub-module to which the first battery belongs, and the battery module control and protection system can be triggered to control the power-off and exit of all electrical cabinets contained in the energy storage sub-module, so that the energy storage sub-module to which the first battery belongs stops working, thereby reducing the risk of fire and explosion accidents of the energy storage valve.

[0097] In an embodiment of the present application, if the first battery is determined to be at risk of thermal runaway, the energy storage valve control and protection system is further configured to trigger the inert gas protection system to initiate an inert gas replacement mode. When the inert gas replacement mode is activated, the inert gas protection system is configured to fill the electrical cabinet to which the first battery belongs with inert gas, thereby increasing the inert gas concentration within the cabinet and reducing the concentrations of combustible and combustion-supporting gases within the cabinet, thereby reducing the risk of combustion within the cabinet and, consequently, the risk of fire and explosion accidents within the energy storage valve.

[0098] In some embodiments of the present application, if the energy storage valve does not have a thermal runaway risk, the corresponding control strategy may be to control the energy storage valve to operate normally, and the corresponding fire protection strategy may be not to perform fire protection on the energy storage valve.

[0099] In some embodiments of the present application, when there is a risk of thermal runaway in the energy storage valve, the control strategy and the fire fighting strategy can be further determined according to the level of the thermal runaway risk. For example, when the thermal runaway risk is at the first level, the corresponding control strategy is to control the normal operation of the energy storage valve, and the corresponding fire fighting strategy is to extinguish the energy storage valve (for example, start the inert gas replacement mode); when the thermal runaway risk is at the second level, the corresponding control strategy is to execute at least one of the above actions, and the corresponding fire fighting strategy is to extinguish the energy storage valve.

[0100] The second level of risk severity is greater than the first level of risk severity. For example, if the energy storage valve control and protection system does not detect the thermal runaway risk of the first battery, but the inert gas protection system detects the thermal runaway risk of the first battery, the thermal runaway risk can be considered to be level 1. If both the energy storage valve control and protection system and the inert gas protection system detect the thermal runaway risk of the first battery, the thermal runaway risk can be considered to be level 2. The specific method for determining the level is not limited to this.

[0101] The above-mentioned energy storage valve fire linkage control system can trigger the battery module control and protection system to control the power-off and exit of the electrical cabinet to which the first battery belongs when there is a risk of thermal runaway in the first battery, so as to protect the electrical cabinet in time. It can also trigger the power module control and protection system to control the bypass of the energy storage sub-module to which the first battery belongs, and trigger the battery module control and protection system to control the power-off and exit of all electrical cabinets contained in the energy storage sub-module, so that the energy storage sub-module to which the first battery belongs stops working, and can control the energy storage valve to be locked to reduce the risk of fire and explosion accidents caused by the energy storage valve.

[0102] In some embodiments of the present application, the energy storage valve fire linkage control system also includes a battery module control and protection system and / or a power module control and protection system.

[0103] The energy storage valve control and protection system can control the first battery to power off and exit through the battery module control and protection system; and / or, the energy storage valve control and protection system can control the bypass of the energy storage submodule to which the first battery belongs through the power module control and protection system. If the first battery is at risk of thermal runaway, the energy storage valve control and protection system can also control the power module corresponding to the first battery to disconnect from the battery module through the power module control and protection system.

[0104] In some embodiments of the present application, the energy storage valve control and protection system is communicatively connected to the power module control and protection system, and the power module control and protection system is communicatively connected to the battery module control and protection system; or, the energy storage valve control and protection system is communicatively connected to the power module control and protection system, and the energy storage valve control and protection system is communicatively connected to the battery module control and protection system.

[0105] In an embodiment of the present application, the battery module control and protection system can be communicated with the power module control and protection system to achieve communication connection with the energy storage valve control and protection system, or it can be directly communicated with the energy storage valve control and protection system without going through the power module control and protection system.

[0106] In some embodiments of the present application, there are multiple energy storage valve control and protection systems and multiple inert gas protection systems, and each energy storage valve control and protection system is communicatively connected to multiple inert gas protection systems. For example, as shown in FIG1 , n is greater than 1.

[0107] After such configuration, multiple energy storage valve control protection systems can back up each other, and multiple inert gas protection systems can back up each other.

[0108] For example, any one of the multiple energy storage valve control and protection systems can be selected as the primary system for use, while the other energy storage valve control and protection systems are used as backup systems but not put into use temporarily. It should be noted that any one of the energy storage valve control and protection systems can be manually or automatically switched to be the primary system for use.

[0109] For example, any one of the multiple inert gas protection systems can be selected as the primary system, while the other inert gas protection systems can be used as backup systems but not put into use temporarily. It should be noted that any one of the inert gas protection systems can be manually or automatically switched to be the primary system.

[0110] The above-mentioned energy storage valve fire linkage control system realizes redundant configuration by setting the number of energy storage valve control protection systems and inert gas protection systems to be multiple, thereby improving the stability of the energy storage valve fire linkage control system.

[0111] Please refer to Figure 2, which takes the example of two energy storage valve control and protection systems and two inert gas protection systems. In some embodiments of the present application, the linkage control system further includes n power module control and protection systems and n battery module control and protection systems. The n battery module control and protection systems are respectively communicatively connected to the n power module control and protection systems. Each power module control and protection system is connected to multiple energy storage valve control and protection systems, where n is an integer greater than or equal to 1.

[0112] As an example of an application scenario of an embodiment of the present application, the battery module control and protection system is responsible for the control and protection of battery cells, battery packs, battery clusters, and battery stacks, and is also used to collect the temperature of each battery cell in order to determine whether the battery has thermal runaway based on the temperature of the battery cell.

[0113] As an example of an application scenario of an embodiment of the present application, the power module control and protection system is responsible for locking, unlocking, and protecting the power module, and is also responsible for uploading data collected by the battery module control and protection system to the energy storage valve control and protection system through this system. For example, the temperature of the battery cell collected by the battery module control and protection system, and / or the result of determining whether the battery is in thermal runaway, are uploaded to the energy storage valve control and protection system through the power module control and protection system.

[0114] As an example of an application scenario of an embodiment of the present application, the energy storage valve control and protection system is used to be responsible for the start, stop, lock, unlock, and early warning strategy of the energy storage valve, and is also used to form the acquired thermal runaway related information into a control strategy to realize the control and protection of the energy storage valve. For example, the thermal runaway related information includes whether the battery has thermal runaway. For example, the control strategy includes that when the first battery has thermal runaway, the energy storage valve control and protection system triggers the power module control and protection system to control the bypass of the energy storage submodule to which the first battery belongs, triggers the battery module control and protection system to control the power-off and exit of all electrical cabinets contained in the energy storage submodule, and triggers the inert gas protection system to start the inert gas replacement mode. For example, the early warning strategy includes that when the first battery has thermal runaway, the energy storage valve control and protection system sends an early warning signal to the monitoring station to prompt the personnel of the monitoring station to perform corresponding inspections based on the early warning signal.

[0115] As an example of an application scenario of an embodiment of the present application, the inert gas protection system is used to reduce the concentration of combustion-supporting gas and combustible gas in the electrical cabinet to reduce the risk of fire and explosion accidents, thereby achieving active fire prevention and explosion prevention.

[0116] The above-mentioned energy storage valve fire linkage control system is a dual redundant communication architecture with dual energy storage valve control and protection systems and dual inert gas protection systems. The linkage control and protection of the energy storage valve is realized by sequentially connecting the battery module control and protection system, the power module control and protection system, the energy storage valve control and protection system, and the inert gas protection system. The number of optical fibers required is small, and the system has good economy and high reliability.

[0117] In some embodiments of the present application, the battery module control and protection system is configured to, upon determining that a first battery cell is at risk of thermal runaway, transmit a thermal runaway risk alarm signal to a power module control and protection system connected to the battery module control and protection system. The power module control and protection system is configured to forward the thermal runaway risk alarm signal to at least one energy storage valve control and protection system connected to the power module control and protection system. Therefore, as an example, the at least one energy storage valve control and protection system may determine that the first battery cell is at risk of thermal runaway based on the thermal runaway risk alarm signal.

[0118] The power module control and protection system is also used to control the bypass of the energy storage submodule to which the first battery belongs, control the disconnection of the power module corresponding to the first battery from the battery module based on the triggering of the energy storage valve control and protection system, and send a first control instruction to the battery module control and protection system, the first control instruction being used to trigger the battery module control and protection system to control all electrical cabinets contained in the energy storage submodule to power off and exit. For example, when at least one energy storage valve control and protection system determines that the first battery has a thermal runaway risk based on a thermal runaway risk alarm signal, at least one energy storage valve control and protection system can trigger the power module control and protection system to control the bypass of the energy storage submodule to which the first battery belongs, control the disconnection of the power module corresponding to the first battery from the battery module, and cause the power module control and protection system to send a first control instruction to the battery module control and protection system to trigger the battery module control and protection system to control all electrical cabinets contained in the energy storage submodule to power off and exit, thereby stopping the energy storage submodule to which the first battery belongs, and reducing the risk of fire and explosion accidents caused by the energy storage valve.

[0119] In the above-mentioned energy storage valve fire linkage control system, the battery module control and protection system is used to upload a thermal runaway risk alarm signal to at least one energy storage valve control and protection system through the power module control and protection system. The energy storage valve control and protection system is used to trigger the battery module control and protection system through the power module control and protection system, thereby forming a feedback closed loop, and timely and effectively controlling the first battery with thermal runaway risk, and timely protecting the energy storage valve, so that the energy storage valve can operate reliably and stably.

[0120] In some embodiments of the present application, each energy storage valve control and protection system is communicatively connected to other energy storage valve control and protection systems, and each inert gas protection system is communicatively connected to other inert gas protection systems. With this arrangement, data can be shared between multiple energy storage valve control and protection systems to establish a redundant communication architecture, and data can be shared between multiple inert gas protection systems to establish a redundant communication architecture.

[0121] For example, referring to FIG2 , the two energy storage valve control and protection systems are communicatively connected to each other, and the two inert gas protection systems are communicatively connected to each other, so that FIG2 constitutes a dual redundant communication architecture, that is, each energy storage valve control and protection system can realize the functions of the energy storage valve control and protection system described in any of the above embodiments, and each inert gas protection system can realize the functions of the inert gas protection system described in any of the above embodiments.

[0122] The above-mentioned energy storage valve fire linkage control system can build a linkage control system with a dual redundant communication architecture by setting up communication connections between each energy storage valve control and protection system and other energy storage valve control and protection systems, and communication connections between each inert gas protection system and other inert gas protection systems, so as to improve the reliability of the system.

[0123] In some embodiments of the present application, one of the multiple energy storage valve control and protection systems serves as the first primary system, and the remaining energy storage valve control and protection systems serve as the first backup systems. With this configuration, the first primary system is used to implement the functions of the energy storage valve control and protection system described in any of the above embodiments. For example, the first primary system is used to control the first battery to power off if there is a risk of thermal runaway.

[0124] One of the multiple inert gas protection systems serves as the second primary system, and the remaining inert gas protection systems serve as the second backup system. With this configuration, the second primary system is used to implement the functions of the inert gas protection system described in any of the above embodiments. For example, the second primary system is used to fill the area around the first battery with inert gas if there is a risk of thermal runaway.

[0125] For example, as shown in FIG2 , one of the two energy storage valve control and protection systems is the first primary system, and the other energy storage valve control and protection system is the first backup system; one of the two inert gas protection systems is the second primary system, and the other inert gas protection system is the second backup system.

[0126] The above-mentioned energy storage valve fire linkage control system can build a linkage control system with a dual redundant communication architecture by determining the first main system, the second main system, the first backup system and the second backup system to improve the reliability of the system.

[0127] In some embodiments of the present application, the first primary system and the first backup system are determined by comparing the first health levels of multiple energy storage valve control and protection systems. The second primary system and the second backup system are determined by comparing the second health levels of multiple inert gas protection systems. The first health level indicates the fault level of the energy storage valve control and protection system, and the second health level indicates the fault level of the inert gas protection system.

[0128] As an example, see Figure 2. A single energy storage valve control and protection system can communicate with both each inert gas protection system and each power module control and protection system via optical fiber. This means that a single energy storage valve control and protection system has at least (n+2) optical fibers. Therefore, in one example, the number of optical fibers experiencing communication anomalies can reflect the fault level of the energy storage valve control and protection system, or its primary health level.

[0129] As an example, the inert gas pressure stored in the inert gas protection system can also be used to reflect the fault level of the inert gas protection system, that is, the second health level. For example, when the inert gas pressure is less than or equal to the first pressure threshold and greater than the second pressure threshold, it indicates the first fault level; when the inert gas pressure is less than or equal to the second pressure threshold, it indicates the second fault level.

[0130] Therefore, by comparing the first health levels of multiple energy storage valve control and protection systems, the first primary system and the first backup system can be determined, enabling primary and backup system switching. For example, if the first health levels of three energy storage valve control and protection systems are respectively mild, severe, and urgent, the energy storage valve control and protection system with the mild health level will be selected as the first primary system, and the other energy storage valve control and protection systems will be selected as the first backup systems.

[0131] Similarly, by comparing the Second Health Levels of multiple inert gas protection systems, the secondary primary and secondary backup systems can be determined, enabling primary / backup system switching. For example, if the Second Health Levels of two inert gas protection systems are mild and severe, respectively, the mild inert gas protection system will be selected as the second primary system, and the other inert gas protection systems will be used as the second backup systems.

[0132] It should be noted that, as an example, each energy storage valve control and protection system can monitor its own first health and then share the first health with other energy storage valve control and protection systems. Similarly, each inert gas protection system can monitor its own second health and then share the second health with other inert gas protection systems.

[0133] The above-mentioned energy storage valve fire linkage control system can determine the first main system, the first backup system, the second main system and the second backup system according to the system fault level, realize the switching of the main and backup systems, and improve the effectiveness of the switching.

[0134] Referring to Figure 3 , in some embodiments of the present application, system A and system B form a redundant communication architecture that serves as a primary and backup system for each other. For example, system A is either of the two energy storage valve control and protection systems shown in Figure 2 , and system B is the other of the two energy storage valve control and protection systems shown in Figure 2 ; or, system A is either of the two inert gas protection systems shown in Figure 2 , and system B is the other of the two inert gas protection systems shown in Figure 2 .

[0135] As a scenario example of this embodiment, based on the comparison result of the health of system A and system B (first health or second health), it can be determined that one of system A and system B is the primary system (first primary system or second primary system), and the other system in system A and system B is the backup system (first backup system or second backup system).

[0136] It should be understood that in actual applications (for example, during a master-slave system switchover), if both System A and System B are active, the "latter master" strategy is adopted, meaning the system that becomes active later becomes active. If both System A and System B are active, the "first master master" strategy is adopted, meaning the system that becomes active earlier becomes active.

[0137] The above-mentioned energy storage valve fire linkage control system adopts a "later master becomes master" strategy (or "first master becomes master" strategy) when system A and system B are both active systems (or both standby systems) to improve the effectiveness of the active-standby system switching.

[0138] Please refer to FIG2 , which is a scenario example of an energy storage valve fire linkage control system in some embodiments of the present application:

[0139] The energy storage valve control and protection system and the inert gas protection system utilize cross-redundant communication. The data uploaded by the inert gas protection system to the energy storage valve control and protection system includes, but is not limited to, information on primary and standby status, communication status, self-test status, warning status, and whether the inert gas protection system is operational, enabling the energy storage valve control and protection system to perform system switching and interlocking control. The data transmitted by the energy storage valve control and protection system to the inert gas protection system includes, but is not limited to, information on activating the inert gas replacement mode for the inert gas protection system and communication status, enabling the inert gas protection system to perform system switching and interlocking control.

[0140] As an example, the first main-backup system includes a first main system and a first backup system. In the event of any one or more of the following situations: an abnormal self-test of the first main-backup system, a flammable gas concentration warning, a combustion-supporting gas concentration warning, a communication failure between the first main-backup system and the inert gas protection system, and a communication failure between the first main-backup systems, if there is inconsistency between the first main-backup systems, that is, the same target data determined by the first main system and the first backup system are inconsistent, the data determined by the first main system shall prevail; or, in the event of at least two of the following situations: an abnormal self-test of the first main-backup system, a flammable gas concentration warning, a combustion-supporting gas concentration warning, a communication failure between the first main-backup system and the inert gas protection system, and a communication failure between the first main-backup systems, the data determined by the first main system shall prevail. This arrangement is used to realize the functions of starting, stopping, locking, unlocking, and warning the energy storage valve.

[0141] As an example, the second main-backup system includes a second main system and a second backup system. In the event of any one or more of the following: a flammable gas concentration warning, a combustion-supporting gas concentration warning, the activation of the inert gas replacement mode, a communication failure between the second main-backup system and the energy storage valve control and protection system, and a communication failure between the second main-backup systems, if there is inconsistency between the second main-backup systems, that is, the same target data determined by the second main system and the second backup system are inconsistent, the data determined by the second main system shall prevail; or, in the event of at least two of the following: a flammable gas concentration warning, a combustion-supporting gas concentration warning, the activation of the replacement mode, a communication failure between the second main-backup system and the energy storage valve control and protection system, and a communication failure between the second main-backup systems, the data determined by the second main system shall prevail. This configuration is used to enable the activation of the inert gas replacement mode and the warning.

[0142] The above energy storage valve fire linkage control system introduces the switching scenario of the first active-standby system and the second active-standby system through specific scenario examples.

[0143] In some embodiments of the present application, the inert gas protection system is further configured to send a fire risk alarm signal (or a warning instruction) to the energy storage valve control and protection system when the inert gas protection system has been filling the first battery with inert gas for a period of time greater than or equal to a first duration and the first battery still presents a fire risk (i.e., a thermal runaway risk). The energy storage valve control and protection system is configured to confirm that the first battery presents a fire risk based on the fire risk alarm signal.

[0144] As an example, when the inert gas protection system determines that the first battery has a fire risk, the inert gas protection system will start the inert gas replacement mode to fill the electrical cabinet to which the first battery belongs with inert gas to reduce the concentration of combustible gas and combustion-supporting gas in the electrical cabinet, in the hope of eliminating the fire risk of the first battery. However, when the time in the inert gas replacement mode (which can be equivalent to the time for filling the inert gas around the first battery) is greater than or equal to the first duration, if the first battery still has a fire risk, it means that the concentration of combustible gas or combustion-supporting gas in the electrical cabinet is still high and there is still a fire risk. In this case, the inert gas protection system sends a fire risk alarm signal to the energy storage valve control and protection system so that the energy storage valve control and protection system can implement linkage control, that is, trigger the power module control and protection system to control the bypass of the energy storage submodule to which the first battery belongs, disconnect the power module corresponding to the first battery from the battery module, and trigger the battery module control and protection system to control all electrical cabinets contained in the energy storage submodule to power off and exit, so as to reduce the risk of fire and explosion accidents in the energy storage valve.

[0145] In the above-mentioned energy storage valve fire linkage control system, the inert gas protection system sends a fire risk alarm signal to the energy storage valve control and protection system when the time for the inert gas protection system to fill inert gas around the first battery is greater than or equal to the first duration and there is still a fire risk in the first battery. This not only enables the energy storage valve control and protection system to achieve linkage control, but also reduces the risk of false alarm of the fire risk alarm signal by setting the first duration, thereby improving the effectiveness of the linkage control and reducing the impact on the normal operation of the first battery.

[0146] In some embodiments of the present application, the energy storage valve control and protection system can obtain first data of the first battery and determine the thermal runaway risk condition of the first battery based on the first data of the first battery, wherein the first data may include at least one of temperature and shell expansion.

[0147] For example, the first data includes temperature. When the temperature of the first battery is greater than or equal to a corresponding temperature threshold, the first battery is determined to be at risk of thermal runaway. As an example, the battery temperature can be measured by a relevant temperature sensor (i.e., a fire sensor) and transmitted to the electrical cabinet control and protection system to determine whether the first battery is at risk of thermal runaway. For example, the battery module control and protection system determines whether the first battery is at risk of thermal runaway through the electrical cabinet control and protection system.

[0148] For example, the first data includes the shell expansion degree. When the shell expansion degree of the first battery is greater than or equal to the corresponding expansion threshold, it is determined that the first battery is at risk of thermal runaway. It should be understood that when the temperature of the battery is too high, the battery shell will also expand. Therefore, it is possible to determine whether the first battery is at risk of thermal runaway by the battery shell expansion degree. As an example, the shell expansion degree of the battery can be measured by a relevant visual sensor (i.e., a fire sensor) and transmitted to the electrical cabinet control and protection system to determine whether the first battery is at risk of thermal runaway. For example, the battery module control and protection system determines whether the first battery is at risk of thermal runaway through the electrical cabinet control and protection system.

[0149] For example, the first data includes temperature and shell expansion. When the temperature of the first battery is greater than or equal to a corresponding temperature threshold, and the shell expansion of the first battery is greater than or equal to a corresponding expansion threshold, it is determined that the first battery has a thermal runaway risk.

[0150] The energy storage valve fire linkage control system determines whether the first battery has a thermal runaway risk based on the temperature of the first battery and / or the shell expansion degree, and has the advantage of being simple to implement.

[0151] In some embodiments of the present application, the energy storage valve control and protection system can obtain second data of the first battery, and determine the thermal runaway risk condition of the first battery based on the second data of the first battery, wherein the second data may include at least one of the combustible gas concentration, the combustion-supporting gas concentration and the inert gas concentration.

[0152] For example, the second data includes a combustible gas concentration. When the combustible gas concentration within the electrical cabinet is greater than or equal to a corresponding concentration threshold, a fire risk is determined for the first battery. For example, combustible gases include, but are not limited to, hydrogen, hydrocarbons, or carbon monoxide. As an example, a gas concentration sensor (i.e., a fire sensor) can be used to detect the combustible gas concentration within the electrical cabinet to determine whether a fire risk exists for the first battery.

[0153] For example, the second data includes the concentration of a combustion-supporting gas. When the concentration of the combustion-supporting gas in the electrical cabinet is greater than or equal to a corresponding concentration threshold, a fire risk is determined for the first battery. For example, combustible gases include, but are not limited to, oxygen. As an example, a gas concentration sensor can be used to detect the concentration of the combustion-supporting gas in the electrical cabinet to determine whether there is a fire risk for the first battery.

[0154] For example, the second data includes an inert gas concentration. When the inert gas concentration within the electrical cabinet is less than or equal to a corresponding concentration threshold, a fire risk is determined for the first battery. For example, inert gases include, but are not limited to, nitrogen. When the inert gas protection system activates the inert gas replacement mode, nitrogen is introduced into the electrical cabinet. As an example, a gas concentration sensor can be used to detect the inert gas concentration within the electrical cabinet to determine whether a fire risk exists for the first battery.

[0155] For example, the second data includes the concentration of combustible gas, the concentration of combustion-supporting gas and the concentration of inert gas. When the concentration of combustible gas in the electrical cabinet is greater than or equal to the corresponding concentration threshold, the concentration of combustion-supporting gas in the electrical cabinet is greater than or equal to the corresponding concentration threshold, and the concentration of inert gas in the electrical cabinet is less than or equal to the corresponding concentration threshold, it is determined that there is a fire risk in the first battery.

[0156] The energy storage valve fire linkage control system determines whether the first battery has a fire risk based on the second data of the first battery, and has the advantage of being simple to implement.

[0157] Based on the above embodiments, referring to FIG4 , in some embodiments of the present application, a control method for the energy storage valve fire linkage control system is provided, specifically comprising the following steps:

[0158] 1. A control method for an energy storage valve control and protection system, including:

[0159] (1) The electrical cabinet control and protection system detects in real time whether the first battery has a thermal runaway risk. If so, a thermal runaway risk alarm signal is reported to the battery module control and protection system, and the battery module control and protection system controls the single electrical cabinet to which the first battery belongs to be powered off and exited. The determination of whether the first battery has a thermal runaway risk can be made based on the temperature of the first battery and / or the expansion of its shell. For details, please refer to the description of the above embodiment and will not be repeated here.

[0160] (2) The battery module control and protection system uploads the thermal runaway risk alarm signal to the power module control and protection system, so that the thermal runaway risk alarm signal can be uploaded to the energy storage valve control and protection system through the power module control and protection system.

[0161] (3) The energy storage valve control and protection system receives the thermal runaway risk alarm signal and performs an anti-error confirmation. The anti-error confirmation includes: whether the multiple energy storage valve control and protection systems have switched the main and standby systems, and whether the switching is correct, that is, whether the first main system and the first standby system are confirmed to be correct. It should be understood that the main and standby system switching can be carried out in real time, but after the energy storage valve control and protection system receives the thermal runaway risk alarm signal, and before triggering the inert gas replacement mode and bypass command, it is necessary to confirm again whether the first main system and the first standby system are correct, that is, anti-error confirmation.

[0162] (4) After the energy storage valve control and protection system has been confirmed to be correct, the inert gas protection system linkage control is triggered to start the inert gas replacement mode, control the energy storage valve to be locked, trigger the power module control and protection system to control the bypass of the single energy storage submodule belonging to the first battery, control the power module corresponding to the first battery to be disconnected from the battery module, and trigger the battery module control and protection system through the power module control and protection system to control all electrical cabinets contained in the single energy storage submodule to be powered off and exit.

[0163] (5) If the energy storage valve control and protection system determines that the first battery has a risk of thermal runaway or fire, the energy storage valve control and protection system will also upload an alarm signal to the monitoring station to initiate observation and intervention judgment. If the observation result indicates that intervention is required, the energy storage valve will be controlled to stop operating. For example, manual observation can be performed to determine whether intervention is required to stop the energy storage valve. For example, artificial intelligence recognition can also be used to determine whether intervention is required to stop the energy storage valve.

[0164] 2. Control methods of inert gas protection system, including:

[0165] (1) Determine whether there is a fire risk in the first battery by detecting whether the concentration of the combustion-supporting gas or the flammable gas in the electrical cabinet to which the first battery belongs has issued an early warning. For example, when the concentration of the combustion-supporting gas or the flammable gas exceeds a corresponding threshold, it is determined that the concentration of the combustion-supporting gas or the flammable gas has issued an early warning, thereby determining that there is a fire risk in the first battery.

[0166] (2) After determining that the concentration of the combustion-supporting gas or the combustible gas has issued an early warning, the inert gas protection system determines that there is a fire risk in the first battery and starts the inert gas replacement mode to fill the corresponding electrical cabinet with inert gas to reduce the concentration of the combustion-supporting gas and the combustible gas in the electrical cabinet.

[0167] (3) When the time in the inert gas replacement mode is greater than or equal to the first time length T1, and the concentration of the combustion-supporting gas or the combustible gas still issues an early warning, that is, there is still a fire risk in the first battery, the inert gas protection system uploads a fire risk alarm signal to the energy storage valve control protection system so that the energy storage valve control protection system can implement linkage control, such as triggering the power module control protection system to control the bypass of the single energy storage submodule belonging to the first battery, and triggering the battery module control protection system through the power module control protection system to control the power-off and exit of all electrical cabinets contained in the single energy storage submodule.

[0168] (4) If the inert gas protection system determines that the first battery has a risk of thermal runaway or fire, the inert gas protection system will also upload an alarm signal to the monitoring station to initiate observation and intervention judgment. If the observation result indicates that intervention is required, the energy storage valve is controlled to stop operation. For example, manual observation can be performed to determine whether intervention is required to stop the energy storage valve. For example, artificial intelligence recognition can also be used to determine whether intervention is required to stop the energy storage valve.

[0169] The control method of the above-mentioned energy storage valve control and protection system can monitor the internal risks (such as thermal runaway risks) and external risks (such as fire risks) of the battery, and combine the linkage control between the energy storage valve control and protection system and the inert gas protection system, so that the first battery with thermal runaway risk can be effectively controlled and warned in a timely manner, thereby protecting the energy storage valve and ensuring reliable and stable operation of the energy storage valve.

[0170] Please refer to Figure 5. In some embodiments of the present application, the number of energy storage valve control and protection systems and inert gas protection systems is 1, and the linkage control system also includes n power module control and protection systems and n battery module control and protection systems. The n battery module control and protection systems are communicatively connected to the n power module control and protection systems in a one-to-one correspondence, and the n power module control and protection systems are communicatively connected to the energy storage valve control and protection system, where n is an integer greater than or equal to 1.

[0171] It should be understood that the energy storage valve fire linkage control system provided in the embodiment shown in Figure 5, except for not having a redundant communication architecture, the functions of its energy storage valve control and protection system, inert gas protection system, each power module control and protection system, and each battery module control and protection system are described in the above embodiments and will not be repeated here.

[0172] The above-mentioned energy storage valve control and protection system is provided with one energy storage valve control and protection system and one inert gas protection system. The number of optical fibers required is small, and it has good economy, but it also has the following beneficial effects: by monitoring the internal risks (such as thermal runaway risks) and external risks (such as fire risks) of the battery, and combining the linkage control between the energy storage valve control and protection system and the inert gas protection system, the first battery with thermal runaway risk can be effectively controlled and warned in time, thereby protecting the energy storage valve and making the energy storage valve operate reliably and stably.

[0173] Please refer to Figure 6. In some embodiments of the present application, the linkage control system also includes n power module control and protection systems and n battery module control and protection systems. Each of the n battery module control and protection systems is communicatively connected to multiple energy storage valve control and protection systems, and each power module control and protection system is communicatively connected to multiple energy storage valve control and protection systems. n is an integer greater than or equal to 1.

[0174] It should be understood that the energy storage valve fire linkage control system provided in the embodiment shown in Figure 6 also has a dual redundant communication architecture. The functions of its energy storage valve control and protection system, inert gas protection system, each power module control and protection system, and each battery module control and protection system are described in the above embodiments and will not be repeated here.

[0175] It should be noted that in the energy storage valve fire linkage control system provided by the embodiment shown in FIG6 , there is no connection between the battery module control and protection system and the power module control and protection system, but rather a direct connection to the energy storage valve control and protection system. Therefore, the battery module control and protection system can communicate directly with the energy storage valve control and protection system without having to transit through the power module control and protection system. For example, the battery module control and protection system can directly upload the thermal runaway risk alarm signal to the energy storage valve control and protection system. Furthermore, the energy storage valve control and protection system can directly trigger the battery module control and protection system to control all electrical cabinets contained in the energy storage submodule to power off and exit, without having to go through the power module control and protection system.

[0176] The above-mentioned energy storage valve control and protection system, the battery module control and protection system and the power module control and protection system are not connected, but are directly connected to the energy storage valve control and protection system, which can also achieve the purpose of the embodiment of the present application, that is, it also has the above-mentioned beneficial effects.

[0177] Please refer to Figure 7. In some embodiments of the present application, the number of energy storage valve control and protection systems and inert gas protection systems is 1, and the linkage control system also includes n power module control and protection systems and n battery module control and protection systems. The n battery module control and protection systems are communicatively connected to the energy storage valve control and protection system, and the n power module control and protection systems are communicatively connected to the energy storage valve control and protection system.

[0178] It should be understood that the energy storage valve fire linkage control system provided in the embodiment shown in Figure 7, except for not having a redundant communication architecture, the functions of its energy storage valve control and protection system, inert gas protection system, each power module control and protection system, and each battery module control and protection system are described in the above embodiments and will not be repeated here.

[0179] Furthermore, the battery module control and protection system is not connected to the power module control and protection system, but is directly connected to the energy storage valve control and protection system. Therefore, the battery module control and protection system can communicate directly with the energy storage valve control and protection system, and the energy storage valve control and protection system can directly trigger the battery module control and protection system to control the power-off of all electrical cabinets included in the energy storage submodule.

[0180] The above-mentioned energy storage valve control and protection system, which is provided with one energy storage valve control and protection system and one inert gas protection system, also has the above-mentioned beneficial effects.

[0181] Please refer to Figure 6 or Figure 7. In some embodiments of the present application, the battery module control and protection system is used to send a thermal runaway risk alarm signal to at least one energy storage valve control and protection system connected to the battery module control and protection system when it is determined that the first battery has a thermal runaway risk.

[0182] For example, as shown in Figure 6, the battery module control and protection system sends a thermal runaway risk alarm signal to each of the two energy storage valve control and protection systems connected to the battery module control and protection system. For another example, the battery module control and protection system sends a thermal runaway risk alarm signal to either of the two energy storage valve control and protection systems connected to the battery module control and protection system, and either energy storage valve control and protection system can share the thermal runaway risk alarm signal with the other energy storage valve control and protection system.

[0183] The energy storage valve control and protection system is used to determine whether the first battery has a thermal runaway risk based on the thermal runaway risk alarm signal, and to send a second control instruction to the battery module control and protection system and the power module control and protection system. The second control instruction is used to trigger the power module control and protection system to control the bypass of the energy storage sub-module to which the first battery belongs, and to trigger the battery module control and protection system to control all electrical cabinets contained in the energy storage sub-module to power off and exit.

[0184] The above-mentioned energy storage valve control and protection system, battery module control and protection system and power module control and protection system are not connected, but are directly connected to the energy storage valve control and protection system. The number of optical fibers required is doubled, but the above-mentioned beneficial effects are still achieved.

[0185] In summary, in some embodiments of the present application, a control method for a linkage control system is further provided, which is applied to an energy storage control system. The method includes the following steps:

[0186] S110: Obtain the thermal runaway risk status of the energy storage valve.

[0187] S120: Determine a first control strategy for controlling the energy storage valve and a first fire protection strategy for the energy storage valve according to the thermal runaway risk condition.

[0188] It should be understood that the specific implementation principles and processes of steps S110 and S120 can refer to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0189] In some embodiments of the present application, the above step S110 may include the following steps:

[0190] A thermal runaway risk status of at least one of an energy storage submodule, a power module, and a battery module of the energy storage valve is obtained.

[0191] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0192] In some embodiments of the present application, the above step S110 may include the following steps:

[0193] Acquire first data of a first battery included in the energy storage valve, the first data including at least one of a temperature and a shell expansion degree;

[0194] A thermal runaway risk condition of the first battery is determined according to the first data to obtain a thermal runaway risk condition of the energy storage valve.

[0195] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0196] In some embodiments of the present application, the above step S110 may include the following steps:

[0197] Acquiring second data of a first battery included in the energy storage valve, the second data including at least one of a combustible gas concentration, a combustion-supporting gas concentration, and an inert gas concentration;

[0198] A thermal runaway risk condition of the first battery is determined according to the second data to obtain a thermal runaway risk condition of the energy storage valve.

[0199] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0200] In some embodiments, when the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the first control strategy is to control the energy storage valve to operate normally, and the first firefighting strategy is not to perform firefighting on the energy storage valve.

[0201] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the first control strategy is to control the energy storage valve to operate normally, and the first fire fighting strategy is to extinguish the energy storage valve.

[0202] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk, and the thermal runaway risk is at the second level, the first control strategy is to perform at least one of the following actions: bypassing the energy storage submodule in the energy storage valve that has the thermal runaway risk, disconnecting the power module and battery module in the energy storage valve that have the thermal runaway risk, powering off the battery module in the energy storage valve that has the thermal runaway risk, locking the energy storage valve, and stopping the energy storage valve. The first firefighting strategy is to extinguish the energy storage valve. The second level of risk severity is greater than the first level of risk severity.

[0203] It should be understood that the specific implementation principles and processes of the above-mentioned solution can refer to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0204] In some embodiments, there are multiple energy storage valve control systems, one of the multiple energy storage valve control systems is a first primary system, and the remaining energy storage valve control systems are first backup systems.

[0205] In the above step S120, determining the first control strategy for controlling the energy storage valve according to the thermal runaway risk condition may include the following steps:

[0206] Determine the first primary system and the first backup system;

[0207] When confirming that the first main system and the first backup system are correct, the first main system determines a first control strategy for controlling the energy storage valve according to the thermal runaway risk condition.

[0208] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0209] With the above control method, the energy storage control system can obtain the thermal runaway risk status of the energy storage valve, and determine the control strategy and fire protection strategy for the energy storage valve based on the thermal runaway risk status of the energy storage valve. Therefore, when there is a thermal runaway risk of the energy storage valve, the energy storage control system can execute the control strategy to control the energy storage valve, and the fire protection control system can control the fire protection system to execute the fire protection strategy and extinguish the energy storage valve. That is, the energy storage control system and the fire protection control system can be linked to each other to reduce the risk of fire and explosion accidents of the energy storage valve.

[0210] In some embodiments of the present application, a control method of a linkage control system is also provided, which is applied to a fire control system. The method includes the following steps:

[0211] S210: Obtain the thermal runaway risk status of the energy storage valve.

[0212] S220: Determine a second fire protection strategy for the energy storage valve according to the thermal runaway risk condition, and determine a second control strategy for controlling the energy storage valve through an energy storage control system that is in communication with the fire protection control system.

[0213] It should be understood that the specific implementation principles and processes of steps S210 and S220 can refer to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0214] In some embodiments, when the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the second control strategy is to control the energy storage valve to operate normally, and the second firefighting strategy is not to perform firefighting on the energy storage valve.

[0215] When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the second control strategy is to control the energy storage valve to operate normally, and the second fire fighting strategy is to fire the energy storage valve.

[0216] If the thermal runaway risk condition indicates that the energy storage valve is at risk of thermal runaway, and the thermal runaway risk is at the second level, the second control strategy is to perform at least one of the following actions: bypassing the energy storage submodule at risk of thermal runaway, disconnecting the power module at risk of thermal runaway from the battery module at risk of thermal runaway, powering off the battery module at risk of thermal runaway, locking the energy storage valve, or stopping the energy storage valve. The second firefighting strategy is to firefight the energy storage valve. The second level of risk severity is greater than the first level of risk severity.

[0217] It should be understood that the specific implementation principles and processes of the above-mentioned solution can refer to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0218] In some embodiments, the control method further comprises the following steps:

[0219] When the fire protection control system performs fire protection on the energy storage valve for a time period greater than or equal to the first time period and the thermal runaway risk condition still indicates that the energy storage valve has a thermal runaway risk, a warning instruction is sent to the energy storage control system.

[0220] Among them, the early warning instruction is used by the energy storage control system to determine a third control strategy for controlling the energy storage valve. The third control strategy is to perform at least one of the following actions: control the bypass of the energy storage submodule with thermal runaway risk in the energy storage valve, control the disconnection of the power module with thermal runaway risk from the battery module in the energy storage valve, control the power-off of the battery module with thermal runaway risk in the energy storage valve, control the locking of the energy storage valve, and control the stopping of the energy storage valve.

[0221] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0222] In some embodiments, the fire control system performs fire protection on the energy storage valve, including: the fire control system replaces inert gas into the energy storage valve through an inert gas system.

[0223] It should be understood that the specific implementation principles and processes of the above steps can be referred to the description of the embodiments shown in Figures 1 to 7 above, and will not be repeated here.

[0224] With the above control method, the fire control system can obtain the thermal runaway risk status of the energy storage valve, determine the fire protection strategy for the energy storage valve according to the thermal runaway risk status of the energy storage valve, and determine the control strategy for the energy storage valve through the energy storage control system. Therefore, when there is a thermal runaway risk of the energy storage valve, the energy storage valve can be controlled by executing the control strategy through the energy storage valve control system, and the fire control system can control the fire protection system to execute the fire protection strategy and extinguish the energy storage valve, that is, the energy storage valve control system and the fire protection control system can be linked to each other to reduce the risk of fire and explosion accidents of the energy storage valve.

[0225] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0226] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned various method embodiments can be implemented.

[0227] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A fire protection linkage control system for energy storage valves, wherein: include: At least one energy storage control system and at least one fire control system, each of the energy storage control systems being communicatively connected with at least one of the fire control systems; The energy storage control system is connected to the energy storage valve in communication, and the fire control system is connected to the fire protection system in communication, and the fire protection system is used to carry out fire protection on the energy storage valve; The energy storage valve includes at least one energy storage submodule, and the energy storage submodule includes a power module and a battery module that are connected to each other.

2. The energy storage valve fire linkage control system according to claim 1, wherein: The energy storage control system includes at least one of an energy storage valve control system, a battery management system, and a power module control system.

3. The energy storage valve fire linkage control system according to claim 2, wherein: The energy storage control system includes an energy storage valve control system, a battery management system, and a power module control system. The fire control system is communicatively connected with the battery management system via the energy storage valve control system.

4. The energy storage valve fire linkage control system according to claim 3, wherein: The energy storage valve control system is communicatively connected with the battery management system via the power module control system.

5. The energy storage valve fire linkage control system according to any one of claims 1 to 4, wherein: The fire control system includes a fire sensor.

6. The energy storage valve fire linkage control system according to any one of claims 1 to 5, wherein: It comprises at least two fire control systems, and at least two fire control systems are respectively connected to the energy storage control system.

7. The energy storage valve fire linkage control system according to claim 6, wherein: It comprises at least two energy storage control systems, each of which is connected to each of the fire control systems respectively.

8. The energy storage valve fire linkage control system according to claim 7, wherein: Different fire control systems are communicatively connected with each other, and / or different energy storage control systems are communicatively connected with each other.

9. The energy storage valve fire linkage control system according to any one of claims 1 to 8, wherein: The medium of the communication connection includes optical fiber.

10. A fire protection linkage control method for an energy storage valve, wherein: Applied to an energy storage control system, the method comprises: Obtain the thermal runaway risk status of the energy storage valve; According to the thermal runaway risk condition, a first control strategy for controlling the energy storage valve and a first fire fighting strategy for the energy storage valve are determined.

11. The energy storage valve fire fighting linkage control method according to claim 10, wherein: The obtaining of the thermal runaway risk status of the energy storage valve includes: A thermal runaway risk status of at least one of an energy storage submodule, a power module, and a battery module of the energy storage valve is obtained.

12. The energy storage valve fire linkage control method according to claim 10 or 11, wherein: The obtaining of the thermal runaway risk status of the energy storage valve includes: Acquire first data of a first battery included in the energy storage valve, wherein the first data includes at least one of temperature and shell expansion degree; A thermal runaway risk condition of the first battery is determined according to the first data to obtain a thermal runaway risk condition of the energy storage valve.

13. The energy storage valve fire linkage control method according to any one of claims 10 to 12, wherein: Obtaining the thermal runaway risk status of the energy storage valve includes: Acquiring second data of a first battery included in the energy storage valve, wherein the second data includes at least one of a combustible gas concentration, a combustion-supporting gas concentration, and an inert gas concentration; A thermal runaway risk condition of the first battery is determined according to the second data to obtain a thermal runaway risk condition of the energy storage valve.

14. The energy storage valve fire linkage control method according to any one of claims 10 to 13, wherein: When the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the first control strategy is to control the energy storage valve to work normally, and the first fire fighting strategy is not to fire the energy storage valve; When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the first control strategy is to control the energy storage valve to work normally, and the first fire fighting strategy is to fire fighting the energy storage valve; When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk, and the thermal runaway risk is at the second level, the first control strategy is to perform at least one of the following actions: control the bypass of the energy storage submodule with the thermal runaway risk in the energy storage valve, control the disconnection of the power module with the thermal runaway risk in the energy storage valve from the battery module, control the power-off of the battery module with the thermal runaway risk in the energy storage valve, control the locking of the energy storage valve, and control the energy storage valve to stop running; the first fire fighting strategy is to fire the energy storage valve; The second level of risk severity is greater than the first level of risk severity.

15. The energy storage valve fire linkage control method according to any one of claims 10 to 14, wherein: There are multiple energy storage control systems, one of the multiple energy storage control systems is a first main system, and the remaining energy storage control systems in the multiple energy storage control systems are first backup systems; Determining a first control strategy for controlling the energy storage valve according to the thermal runaway risk condition includes: Determining the first primary system and the first backup system; When confirming that the first main system and the first backup system are correct, the first main system determines a first control strategy for controlling the energy storage valve according to the thermal runaway risk condition.

16. A fire protection linkage control method for an energy storage valve, wherein: Applied to a fire control system, the method comprises: Obtain the thermal runaway risk status of the energy storage valve; According to the thermal runaway risk condition, a second fire fighting strategy for the energy storage valve is determined, and a second control strategy for controlling the energy storage valve is determined through an energy storage control system that is communicatively connected to the fire fighting control system.

17. The energy storage valve fire linkage control method according to claim 16, wherein: When the thermal runaway risk condition indicates that the energy storage valve does not have a thermal runaway risk, the second control strategy is to control the energy storage valve to work normally, and the second fire fighting strategy is not to fire the energy storage valve; When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk and the thermal runaway risk is at the first level, the second control strategy is to control the energy storage valve to work normally, and the second fire fighting strategy is to fire the energy storage valve; When the thermal runaway risk condition indicates that the energy storage valve has a thermal runaway risk, and the thermal runaway risk is at the second level, the second control strategy is to perform at least one of the following actions: control the energy storage submodule with the thermal runaway risk in the energy storage valve to be bypassed, control the power module with the thermal runaway risk in the energy storage valve to be disconnected from the battery module, control the battery module with the thermal runaway risk in the energy storage valve to be powered off, control the energy storage valve to be locked, and control the energy storage valve to stop operating; the second fire fighting strategy is to fire fighting the energy storage valve; The second level of risk severity is greater than the first level of risk severity.

18. The energy storage valve fire linkage control method according to claim 16 or 17, wherein: The method further comprises: When the fire control system performs fire fighting on the energy storage valve for a time period greater than or equal to a first time period and the thermal runaway risk condition still indicates that the energy storage valve has a thermal runaway risk, sending a warning instruction to the energy storage control system; Among them, the early warning instruction is used by the energy storage control system to determine a third control strategy for controlling the energy storage valve, and the third control strategy is to perform at least one of the following actions: control the energy storage submodule with thermal runaway risk in the energy storage valve to bypass, control the power module with the thermal runaway risk in the energy storage valve to be disconnected from the battery module, control the battery module with the thermal runaway risk in the energy storage valve to be powered off, control the energy storage valve to be locked, and control the energy storage valve to stop operating.

19. The energy storage valve fire linkage control method according to claim 17 or 18, wherein: The fire control system performs fire fighting on the energy storage valve, including: The fire control system replaces the inert gas to the energy storage valve through an inert gas system.

20. A computer-readable storage medium, wherein: The computer-readable storage medium stores a program, and when the program is executed by a processor, the program implements the method according to any one of claims 10 to 15, or implements the method according to any one of claims 16 to 19.

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