CN211798396U - Air exhaust and pressure relief system of energy storage system and energy storage system - Google Patents
Air exhaust and pressure relief system of energy storage system and energy storage system Download PDFInfo
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- 238000004146 energy storage Methods 0.000 title claims abstract description 93
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
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- 230000033228 biological regulation Effects 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及储能领域，具体地涉及一种储能系统的排风泄压系统以及一种储能系统。The utility model relates to the field of energy storage, in particular to an exhaust air pressure relief system of an energy storage system and an energy storage system.
背景技术Background technique
锂电池储能系统作为新能源设备应用广泛，其中，柜式储能系统是将一定量的储能锂电池存放在储能柜内，进行削峰填谷、调频、改善电能质量，具有易安装、易运输、模块化等优点。柜式储能系统的内部空间结构紧凑，大部分空间被电池和电气设备占据，且外壳体的保温性能较差，安全隐患较大。当电池发生热失控时，电池温度持续上升，电池内部的电解液开始气化，当电池温度达到100摄氏度左右时，电池内部压力升高，电池安全阀爆开，电解液从电池中喷出。气化的电解液释放到空气中，由于储能系统内部空间紧凑，会使空气中的可燃气体浓度快速上升，达到可燃气体的爆炸浓度，导致火灾发生。因此，需要对储能系统进行火灾早期预警和消防安全防护措施。Lithium battery energy storage systems are widely used as new energy equipment. Among them, cabinet energy storage systems store a certain amount of energy storage lithium batteries in energy storage cabinets for peak shaving, frequency regulation, and power quality improvement. They are easy to install. , easy to transport, modular and so on. The internal space of the cabinet-type energy storage system is compact in structure, most of the space is occupied by batteries and electrical equipment, and the thermal insulation performance of the outer shell is poor, and the safety hazard is relatively large. When the battery is thermally out of control, the battery temperature continues to rise, and the electrolyte inside the battery begins to vaporize. When the battery temperature reaches about 100 degrees Celsius, the internal pressure of the battery increases, the battery safety valve bursts, and the electrolyte is ejected from the battery. The gasified electrolyte is released into the air. Due to the compact internal space of the energy storage system, the concentration of combustible gas in the air will rise rapidly, reaching the explosive concentration of combustible gas, resulting in a fire. Therefore, it is necessary to carry out fire early warning and fire safety protection measures for energy storage systems.
现有的储能消防系统通常采用气体消防方式，在进行消防时需停止排风设备使空间密闭，消防后需开启排风设备，但现有的消防系统配备的排风泄压装置无法实现在较佳时机停止或开启排风设备，早期火灾抑制和后期安全防护效果差，储能系统安全性不高。Existing energy storage fire protection systems usually use gas fire protection. During fire fighting, the exhaust equipment needs to be stopped to seal the space, and the exhaust equipment needs to be turned on after fire fighting. However, the exhaust pressure relief device equipped with the existing fire protection system cannot achieve the The best time is to stop or open the exhaust equipment, the fire suppression in the early stage and the safety protection in the later stage are poor, and the safety of the energy storage system is not high.
实用新型内容Utility model content
本实用新型实施例的目的是提供一种储能系统的排风泄压系统，以提升储能系统早期火灾抑制和后期安全防护的效果，提高储能系统安全性。The purpose of the embodiments of the present invention is to provide an air exhaust and pressure relief system of an energy storage system, so as to improve the effect of early fire suppression and later safety protection of the energy storage system, and to improve the safety of the energy storage system.
为了实现上述目的，本实用新型实施例提供一种储能系统的排风泄压系统，包括：In order to achieve the above purpose, an embodiment of the present utility model provides an exhaust air pressure relief system of an energy storage system, including:
气体探测器，用于探测储能系统空间内的可燃气体浓度，并发送可燃气体浓度信号；Gas detector, used to detect the concentration of combustible gas in the space of energy storage system, and send the concentration signal of combustible gas;
红外热成像仪，用于监测所述储能系统空间内的温度变化，并发送温度信号；an infrared thermal imager, used for monitoring temperature changes in the space of the energy storage system, and sending temperature signals;
消防控制器，与所述气体探测器以及所述红外热成像仪连接，用于接收所述可燃气体浓度信号以确定所述储能系统空间内的可燃气体浓度等级，接收所述温度信号以确定所述储能系统空间内的温度等级，在所述可燃气体浓度等级和所述温度等级均达到预警等级时输出预警信号，或在所述可燃气体浓度等级和所述温度等级均达到危险等级时输出报警信号；排风泄压装置，与所述消防控制器连接，用于对所述储能系统进行排风泄压，在接收到所述预警信号时启动对所述储能系统的排风泄压，在接收到所述报警信号时停止对所述储能系统的排风泄压。A fire controller, connected with the gas detector and the infrared thermal imager, is used for receiving the flammable gas concentration signal to determine the flammable gas concentration level in the space of the energy storage system, and receiving the temperature signal to determine For the temperature level in the energy storage system space, an early warning signal is output when both the combustible gas concentration level and the temperature level reach the early warning level, or when the combustible gas concentration level and the temperature level both reach the dangerous level output an alarm signal; an exhaust pressure relief device, connected to the fire controller, is used to exhaust and depressurize the energy storage system, and start the exhaust air to the energy storage system when the warning signal is received Decompression, when receiving the alarm signal, stop decompressing the exhaust air of the energy storage system.
进一步地，所述排风泄压系统还包括：Further, the exhaust air pressure relief system also includes:
灭火装置，与所述消防控制器连接，用于在接收到所述消防控制器输出的报警信号时释放气体灭火剂，并在释放气体灭火剂之后向所述消防控制器反馈释放完成信号。The fire-extinguishing device is connected to the fire-fighting controller, and is used for releasing the gas fire-extinguishing agent when receiving the alarm signal output by the fire-fighting controller, and feeding back a release completion signal to the fire-fighting controller after releasing the gas fire-extinguishing agent.
进一步地，所述消防控制器还用于在接收到所述灭火装置反馈的释放完成信号之后，且在所述可燃气体浓度等级和所述温度等级均低于所述危险等级时，输出报警解除信号；所述排风泄压装置还用于在接收到所述报警解除信号时，启动对所述储能系统的排风泄压。Further, the fire-fighting controller is further configured to output an alarm release after receiving the release completion signal fed back by the fire-extinguishing device and when both the flammable gas concentration level and the temperature level are lower than the dangerous level. signal; the exhaust air pressure relief device is further configured to start the exhaust air pressure relief to the energy storage system when receiving the alarm release signal.
进一步地，所述排风泄压装置包括控制器、电动百叶板以及风机，所述电动百叶板和所述风机与所述控制器电连接；所述控制器与所述消防控制器电连接，用于接收所述消防控制器输出的所述预警信号、所述报警信号以及所述报警解除信号。Further, the exhaust pressure relief device includes a controller, an electric louver and a fan, and the electric louver and the fan are electrically connected to the controller; the controller is electrically connected to the fire controller, It is used to receive the early warning signal, the alarm signal and the alarm release signal output by the fire controller.
进一步地，所述控制器还用于在接收到所述预警信号时通过输出启动排风信号启动所述电动百叶板和所述风机运行，在接收到所述报警信号时通过输出停止排风信号控制所述电动百叶板和所述风机停止运行。Further, the controller is also used to start the operation of the electric louver and the fan by outputting a start air exhaust signal when receiving the warning signal, and output a stop air exhaust signal when receiving the alarm signal. Control the electric louver and the fan to stop running.
进一步地，所述控制器还用于在接收到所述报警解除信号时通过输出启动排风信号启动所述电动百叶板和所述风机运行。Further, the controller is further configured to start the operation of the electric louver and the blower by outputting an exhaust start signal when receiving the alarm release signal.
进一步地，所述红外热成像仪至少有两个，每两个所述红外热成像仪对称设置于所述储能系统空间内。Further, there are at least two infrared thermal imagers, and every two infrared thermal imagers are symmetrically arranged in the space of the energy storage system.
另一方面，本实用新型还提供一种储能系统，包括多个电池簇以及上述的储能系统的排风泄压系统。On the other hand, the present invention also provides an energy storage system, which includes a plurality of battery clusters and the above-mentioned exhaust air pressure relief system of the energy storage system.
进一步地，所述排风泄压系统的气体探测器安装于多个所述电池簇之间。Further, the gas detectors of the exhaust air pressure relief system are installed between a plurality of the battery clusters.
进一步地，所述排风泄压系统的红外热成像仪安装于多个所述电池簇的热辐射范围内。Further, the infrared thermal imager of the exhaust air pressure relief system is installed within the thermal radiation range of the plurality of battery clusters.
本实用新型的排风泄压系统通过气体探测器对空间内的可燃气体浓度进行监测，通过红外热成像仪监测电池的温度。当储能系统的电池发生热失控时，在气体探测器探测到可燃气体浓度达到预警值且红外热成像仪监测到温度达到预警值时，消防控制器输出预警信号，启动排风泄压装置对储能系统进行排风散热，降低可燃气体浓度，防止由明火或电火花引起可燃气体爆炸；当可燃气体浓度达到危险值且红外热成像仪监测到温度达到危险值时，消防控制器输出报警信号，关闭排风泄压装置，使储能系统内形成密闭空间，灭火装置接收到报警信号后释放气体灭火剂进行灭火。The exhaust air pressure relief system of the utility model monitors the concentration of combustible gas in the space through a gas detector, and monitors the temperature of the battery through an infrared thermal imager. When the battery of the energy storage system is thermally out of control, when the gas detector detects that the concentration of combustible gas reaches the warning value and the infrared thermal imager detects that the temperature reaches the warning value, the fire controller outputs a warning signal, and starts the exhaust air pressure relief device. The energy storage system exhausts and dissipates heat, reduces the concentration of combustible gas, and prevents the explosion of combustible gas caused by open fire or electric spark; when the concentration of combustible gas reaches a dangerous value and the temperature detected by the infrared thermal imager reaches a dangerous value, the fire controller outputs an alarm signal , Close the exhaust and pressure relief device to form a closed space in the energy storage system, and the fire extinguishing device releases the gas fire extinguishing agent after receiving the alarm signal to extinguish the fire.
本实用新型通过气体探测器探测储能系统内可燃气体浓度同时通过红外热成像仪监测电池温度，能够在释放气体灭火剂之后持续监测电池反应情况，以确定电池内部反应是否结束。当可燃气体浓度和电池温度降低到安全值范围时，确定电池内部反应结束，消防控制器输出报警解除信号，排风泄压装置启动，在最佳时机快速降低储能系统空间内有害气体和消防药剂的浓度，提升早期火灾抑制和后期安全防护的效果，提高储能系统安全性。The utility model detects the concentration of combustible gas in the energy storage system through a gas detector and monitors the temperature of the battery through an infrared thermal imager, and can continuously monitor the reaction of the battery after releasing the gas fire extinguishing agent to determine whether the internal reaction of the battery ends. When the concentration of combustible gas and the temperature of the battery are reduced to the safe value range, it is determined that the internal reaction of the battery is over, the fire controller outputs an alarm release signal, and the exhaust air pressure relief device is activated to quickly reduce harmful gases in the energy storage system space and fire protection at the best time. The concentration of the agent can improve the effect of early fire suppression and later safety protection, and improve the safety of the energy storage system.
本实用新型实施例的其它特征和优点将在随后的具体实施方式部分予以详细说明。Other features and advantages of embodiments of the present invention will be described in detail in the detailed description section that follows.
附图说明Description of drawings
附图是用来提供对本实用新型实施例的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本实用新型实施例，但并不构成对本实用新型实施例的限制。在附图中：The accompanying drawings are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification, and are used to explain the embodiments of the present invention together with the following specific embodiments, but do not constitute limitations to the embodiments of the present invention. In the attached image:
图1是本实用新型实施例一提供的储能系统的排风泄压系统的结构框图；Fig. 1 is the structural block diagram of the exhaust air pressure relief system of the energy storage system provided in the first embodiment of the present invention;
图2是本实用新型实施例一提供的储能系统的排风泄压系统的排风泄压装置的结构示意图。FIG. 2 is a schematic structural diagram of an exhaust and pressure relief device of an exhaust and pressure relief system of an energy storage system according to Embodiment 1 of the present invention.
具体实施方式Detailed ways
以下结合附图对本实用新型实施例的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本实用新型实施例，并不用于限制本实用新型实施例。The specific implementations of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.
实施例一Example 1
图1是本实用新型实施例一提供的储能系统的排风泄压系统的结构框图。如图1所示，本实施例提供一种储能系统的排风泄压系统，包括气体探测器、红外热成像仪、消防控制器、排风泄压装置以及灭火装置。所述储能系统包括多个电池簇，所述气体探测器安装于多个所述电池簇之间，所述气体探测器用于探测储能系统空间内的可燃气体浓度，并发送可燃气体浓度信号。所述红外热成像仪至少有两个，每两个所述红外热成像仪对称设置于所述储能系统空间内，所述红外热成像仪安装于多个所述电池簇的热辐射范围内，所述红外热成像仪用于监测所述储能系统空间内的温度变化，并发送温度信号。所述消防控制器与所述气体探测器以及所述红外热成像仪连接，用于接收所述可燃气体浓度信号以确定所述储能系统空间内的可燃气体浓度等级，接收所述温度信号以确定所述储能系统空间内的温度等级，在所述可燃气体浓度等级和所述温度等级均达到预警等级时输出预警信号，或在所述可燃气体浓度等级和所述温度等级均达到危险等级时输出报警信号。所述消防控制器可采用现有的火灾报警控制器或消防联动控制器，例如JB-TB-CA2000S型火灾报警控制器(联动型)。所述排风泄压装置与所述消防控制器连接，用于对所述储能系统进行排风泄压，在接收到所述预警信号时启动对所述储能系统的排风泄压，在接收到所述报警信号时停止对所述储能系统的排风泄压。所述灭火装置与所述消防控制器连接，用于在接收到所述消防控制器输出的报警信号时延时0-30秒释放气体灭火剂，并在释放气体灭火剂之后向所述消防控制器反馈释放完成信号。延时释放气体灭火剂以确保排风泄压装置接收到报警信号后，完全关闭泄压装置，形成密闭空间。FIG. 1 is a structural block diagram of an exhaust air pressure relief system of an energy storage system provided in Embodiment 1 of the present invention. As shown in FIG. 1 , this embodiment provides an exhaust air pressure relief system of an energy storage system, including a gas detector, an infrared thermal imager, a fire control controller, an exhaust air pressure relief device, and a fire extinguishing device. The energy storage system includes a plurality of battery clusters, the gas detector is installed between the plurality of battery clusters, and the gas detector is used to detect the concentration of combustible gas in the space of the energy storage system and send a concentration signal of combustible gas . There are at least two infrared thermal imagers, each two of the infrared thermal imagers are symmetrically arranged in the space of the energy storage system, and the infrared thermal imagers are installed within the thermal radiation range of a plurality of the battery clusters , the infrared thermal imager is used to monitor the temperature change in the space of the energy storage system and send a temperature signal. The fire controller is connected with the gas detector and the infrared thermal imager, and is used for receiving the flammable gas concentration signal to determine the flammable gas concentration level in the space of the energy storage system, and receiving the temperature signal to determine the flammable gas concentration level in the energy storage system space. Determine the temperature level in the energy storage system space, output an early warning signal when both the flammable gas concentration level and the temperature level reach the warning level, or when both the flammable gas concentration level and the temperature level reach the dangerous level output an alarm signal. The fire control controller can use the existing fire alarm controller or fire linkage controller, such as JB-TB-CA2000S type fire alarm controller (linkage type). The air exhaust and pressure relief device is connected to the fire control controller, and is used for exhaust air and pressure relief for the energy storage system, and starts the exhaust air pressure relief for the energy storage system when the early warning signal is received, When the alarm signal is received, the exhaust air pressure relief to the energy storage system is stopped. The fire-extinguishing device is connected to the fire-fighting controller, and is used to release the gas fire-extinguishing agent with a delay of 0-30 seconds when receiving the alarm signal output by the fire-fighting controller, and send the fire-fighting control agent to the fire-fighting control after releasing the gas fire-extinguishing agent The controller feedback releases the completion signal. Delay the release of gas fire extinguishing agent to ensure that after the exhaust pressure relief device receives the alarm signal, the pressure relief device is completely closed to form a closed space.
所述消防控制器还用于在接收到所述灭火装置反馈的释放完成信号之后，且在所述可燃气体浓度等级和所述温度等级均低于所述危险等级时，输出报警解除信号。所述排风泄压装置还用于在接收到所述报警解除信号时，启动对所述储能系统的排风泄压。The fire-fighting controller is further configured to output an alarm release signal after receiving the release completion signal fed back by the fire-extinguishing device and when both the flammable gas concentration level and the temperature level are lower than the danger level. The exhaust air pressure relief device is further configured to start the exhaust air pressure relief to the energy storage system when the alarm release signal is received.
本实用新型的排风泄压系统通过气体探测器对空间内的可燃气体浓度进行监测，通过红外热成像仪监测电池的温度。当储能系统的电池发生热失控时，在气体探测器探测到可燃气体浓度达到预警值且红外热成像仪监测到温度达到预警值时，消防控制器输出预警信号，启动排风泄压装置对储能系统进行排风散热，降低可燃气体浓度，防止由明火或电火花引起可燃气体爆炸；当可燃气体浓度达到危险值且红外热成像仪监测到温度达到危险值时，消防控制器输出报警信号，关闭排风泄压装置，使储能系统内形成密闭空间，灭火装置接收到报警信号后释放气体灭火剂进行灭火。The exhaust air pressure relief system of the utility model monitors the concentration of combustible gas in the space through a gas detector, and monitors the temperature of the battery through an infrared thermal imager. When the battery of the energy storage system is thermally out of control, when the gas detector detects that the concentration of combustible gas reaches the warning value and the infrared thermal imager detects that the temperature reaches the warning value, the fire controller outputs a warning signal, and starts the exhaust air pressure relief device. The energy storage system exhausts and dissipates heat, reduces the concentration of combustible gas, and prevents the explosion of combustible gas caused by open fire or electric spark; when the concentration of combustible gas reaches a dangerous value and the temperature detected by the infrared thermal imager reaches a dangerous value, the fire controller outputs an alarm signal , Close the exhaust and pressure relief device to form a closed space in the energy storage system, and the fire extinguishing device releases the gas fire extinguishing agent after receiving the alarm signal to extinguish the fire.
由于电池的气密性较高，气体灭火剂很难进入到电池内部，只能通过降低电池周围的氧气浓度来抑制电池着火，在灭火过程中需要隔绝氧气直到电池内部反应结束。现有技术的气体消防方式涉及到泄压口设备，传统的泄压口为压力信号启动，当消防药剂全部喷出达到压力设定值时，泄压口打开，将储能系统内气体排出，但此时为消防开始阶段，电池内部反应基本还未结束，还需保持消防药剂的浓度来持续抑制电池着火，若泄压口开启的时机不准确，将会对消防效果造成负面影响，发生火灾复燃现象，达不到彻底灭火的效果。Due to the high airtightness of the battery, it is difficult for the gas fire extinguishing agent to enter the interior of the battery. Only by reducing the oxygen concentration around the battery to suppress the battery fire, it is necessary to isolate the oxygen during the fire extinguishing process until the internal reaction of the battery is completed. The gas fire fighting method in the prior art involves pressure relief port equipment. The traditional pressure relief port is activated by a pressure signal. When all the fire-fighting agents are sprayed out and reach the pressure set value, the pressure relief port is opened to discharge the gas in the energy storage system. However, this is the beginning of fire fighting, and the internal reaction of the battery has not ended. It is necessary to maintain the concentration of fire-fighting chemicals to continuously suppress the fire of the battery. If the timing of opening the pressure relief port is not accurate, it will have a negative impact on the fire fighting effect and cause a fire. The phenomenon of resurgence cannot achieve the effect of complete fire extinguishing.
本实用新型通过气体探测器探测储能系统内可燃气体浓度同时通过红外热成像仪监测电池温度，能够在释放气体灭火剂之后持续监测电池反应情况，以确定电池内部反应是否结束。当可燃气体浓度和电池温度降低到安全值范围时，确定电池内部反应结束，消防控制器输出报警解除信号，排风泄压装置启动，在最佳时机快速降低储能系统空间内有害气体和消防药剂的浓度，提升早期火灾抑制和后期安全防护的效果，提高储能系统安全性。The utility model detects the concentration of combustible gas in the energy storage system through a gas detector and monitors the temperature of the battery through an infrared thermal imager, and can continuously monitor the reaction of the battery after releasing the gas fire extinguishing agent to determine whether the internal reaction of the battery ends. When the concentration of combustible gas and the temperature of the battery are reduced to the safe value range, it is determined that the internal reaction of the battery is over, the fire controller outputs an alarm release signal, and the exhaust air pressure relief device is activated to quickly reduce harmful gases in the energy storage system space and fire protection at the best time. The concentration of the agent can improve the effect of early fire suppression and later safety protection, and improve the safety of the energy storage system.
图2是本实用新型实施例一提供的储能系统的排风泄压系统的排风泄压装置的结构示意图。如图2所示，所述排风泄压装置包括控制器、电动百叶板以及风机，所述电动百叶板和所述风机与所述控制器电连接；所述控制器与所述消防控制器电连接，用于接收所述消防控制器输出的所述预警信号、所述报警信号以及所述报警解除信号。所述控制器在接收到所述预警信号时通过输出启动排风信号启动所述电动百叶板和所述风机运行，对储能系统进行排风散热，降低可燃气体浓度；在接收到所述报警信号时通过输出停止排风信号控制所述电动百叶板和所述风机停止运行，即关闭排风泄压装置，使储能系统内形成密闭空间，为释放气体灭火剂提供密闭环境。所述控制器在接收到所述报警解除信号时通过输出启动排风信号启动所述电动百叶板和所述风机运行，即启动排风泄压装置对储能系统进行排风泄压，快速降低空间内有害气体和消防药剂的浓度。FIG. 2 is a schematic structural diagram of an exhaust and pressure relief device of an exhaust and pressure relief system of an energy storage system according to Embodiment 1 of the present invention. As shown in FIG. 2 , the exhaust pressure relief device includes a controller, an electric louver and a fan, and the electric louver and the fan are electrically connected to the controller; the controller and the fire controller The electrical connection is used for receiving the early warning signal, the alarm signal and the alarm release signal output by the fire control controller. When receiving the warning signal, the controller starts the operation of the electric louver and the fan by outputting a start air exhaust signal, exhausts and dissipates heat from the energy storage system, and reduces the concentration of combustible gas; When the signal is output, the stop exhaust signal is output to control the electric louver and the fan to stop running, that is, to close the exhaust pressure relief device, so that a closed space is formed in the energy storage system to provide a closed environment for releasing the gas fire extinguishing agent. When the controller receives the alarm release signal, it starts the operation of the electric louver and the fan by outputting the start air exhaust signal, that is, activates the air exhaust pressure relief device to release the air pressure of the energy storage system, and quickly reduces the pressure. The concentration of harmful gases and fire fighting agents in the space.
本实用新型实施方式还提供一种储能系统，包括多个电池簇以及上述的储能系统的排风泄压系统。所述排风泄压系统的气体探测器安装于多个所述电池簇之间。所述排风泄压系统的红外热成像仪安装于多个所述电池簇的热辐射范围内。The embodiment of the present invention also provides an energy storage system, which includes a plurality of battery clusters and the above-mentioned exhaust air pressure relief system of the energy storage system. The gas detectors of the exhaust air pressure relief system are installed between a plurality of the battery clusters. The infrared thermal imager of the exhaust air pressure relief system is installed within the thermal radiation range of the plurality of battery clusters.
以上结合附图详细描述了本实用新型实施例的可选实施方式，但是，本实用新型实施例并不限于上述实施方式中的具体细节，在本实用新型实施例的技术构思范围内，可以对本实用新型实施例的技术方案进行多种简单变型，这些简单变型均属于本实用新型实施例的保护范围。The optional embodiments of the embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the embodiments of the present invention, the The technical solutions of the embodiments of the present invention undergo various simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
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| CN114618099A (en) * | 2020-12-11 | 2022-06-14 | 比亚迪股份有限公司 | Energy storage system and control method |
| CN113782851A (en) * | 2021-09-29 | 2021-12-10 | 深圳市科陆电子科技股份有限公司 | Protection devices, battery energy storage systems and electronic equipment |
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