Control method and system of energy storage cabinet

Abstract

The invention discloses a control method and system of an energy storage cabinet, and relates to the technical field of energy storage systems. The control method comprises an active control mode, and the active control mode comprises the following steps: S11, obtaining the temperature of the energy storage cabinet based on the temperature detector, and obtaining the smoke concentration based on the smoke detector; s12, the control host obtains the temperature and the smoke concentration of the energy storage cabinet; an alarm signal is output based on the comparison of the operating temperature and the temperature threshold value and the comparison of the smoke concentration and the concentration threshold value; s121, if the operating temperature is greater than the first temperature threshold value or the smoke concentration is greater than the concentration threshold value, outputting a single alarm signal and starting an alarm bell; and S122, if the operating temperature is greater than the first temperature threshold value and the smoke concentration is greater than the concentration threshold value, outputting a combined alarm signal and starting a high-voltage emergency stop system and an audible and visual alarm, wherein the FFS aerosol is started after delay time. Quick response and safe processing of the energy storage cabinet under the abnormal condition are achieved, meanwhile, the influence on the environment is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage systems, and in particular to a control method and system for an energy storage cabinet. Background Art

[0002] With the rapid development of the energy storage industry, the safety and reliability of energy storage cabinets have become the focus of industry attention.

[0003] Although traditional fire extinguishing systems such as perfluorohexanone and heptafluoropropane can effectively suppress fires, they have problems such as severe environmental pollution, high costs, and strong dependence on control systems. Summary of the invention

[0004] To solve the above problems, the present application discloses a control method and system for an energy storage cabinet, which combines active and passive control modes to achieve rapid response and safe handling of the energy storage cabinet under abnormal conditions, while reducing the impact on the environment and reducing operating costs.

[0005] The first technical solution adopted in the present application is: providing a control method for an energy storage cabinet, the control method comprising an active control mode, the active control mode comprising the following steps:

[0006] Step S11: obtaining the temperature of the energy storage cabinet based on the temperature detector, and obtaining the smoke concentration based on the smoke detector;

[0007] Step S12: controlling the host to obtain the temperature of the energy storage cabinet and the smoke concentration; outputting an alarm signal based on the comparison between the operating temperature and the temperature threshold and the comparison between the smoke concentration and the concentration threshold;

[0008] Step S121: if the operating temperature is greater than a first temperature threshold or the smoke concentration is greater than a concentration threshold, a single alarm signal is output and an alarm bell is activated;

[0009] Step S122: If the operating temperature is greater than the first temperature threshold and the smoke concentration is greater than the concentration threshold, a combined alarm signal is output and the high-voltage emergency stop system and the sound and light alarm are activated, and the FFS aerosol is activated after a delay time.

[0010] Wherein, the control method further includes a passive control mode, and the passive control mode includes:

[0011] The pressure sensor monitors the gas pressure in the energy storage cabinet;

[0012] If the gas pressure is greater than the pressure threshold, the explosion relief device opens to relieve the cabinet pressure.

[0013] Wherein, the passive control mode also includes:

[0014] Passive temperature sensing elements continuously monitor the temperature of the energy storage cabinet;

[0015] If the temperature of the energy storage cabinet is greater than the second temperature threshold, the aerosol is started to spray and the spraying is fed back to the control host.

[0016] Wherein, the high-voltage emergency stop system can be controlled by an emergency start button, and when the emergency start button is pressed, the high-voltage emergency stop system starts.

[0017] The control method of the energy storage cabinet controls the start of the aerosol based on an emergency stop button, and if the emergency stop button is pressed within the delay time, the aerosol will not start.

[0018] Wherein, the control method of the energy storage cabinet controls the start-up of the aerosol based on a maintenance switch, and the maintenance switch is pressed to enter the maintenance state, and the aerosol cannot be started.

[0019] Wherein, the control host is connected to the BMS; when the aerosol is sprayed, the control host outputs a deflation signal to the BMS; when the energy storage cabinet is necrotic, the control host outputs a fault signal to the BMS; when the control host outputs a combined alarm signal, the control host outputs a fire alarm signal to the BMS.

[0020] The BMS sends instructions to the fan based on the internal state, forcing the fan to be turned on to improve ventilation conditions.

[0021] When the gas detector detects abnormal gas concentration, it sends a start signal to the fan to start the fan, and notifies the BMS to perform alarm processing.

[0022] The second technical solution adopted in the present application is: providing a control system of an energy storage cabinet, which can apply the control method of the energy storage cabinet as described in any one of the above items, including:

[0023] A temperature detector and a smoke detector, wherein the temperature detector is used to obtain the temperature in the energy storage cabinet; the smoke detector is used to obtain the smoke concentration in the energy storage cabinet;

[0024] A control host connected to the BMS, the control host is used to receive and process signals from detectors and other components, and output corresponding control instructions;

[0025] an aerosol, which is activated in response to a specific condition to perform a fire extinguishing operation; a maintenance switch, which is used to prevent the unintended activation of the aerosol in a maintenance state;

[0026] A high-voltage emergency stop system, which is activated when the control host outputs a combined alarm signal or an emergency start button is pressed;

[0027] The sound and light alarm and the alarm bell are activated when the control host outputs a single alarm signal; the sound and light alarm is activated when the control host outputs a combined alarm signal;

[0028] The explosion relief device automatically opens to release the overpressure when the gas pressure in the energy storage cabinet exceeds the pressure threshold;

[0029] Manual emergency stop button to suspend the fire extinguishing operation during the delay period before the aerosol is activated;

[0030] The gas detector is used to send a command to turn on the fan when the gas concentration exceeds the standard and send an alarm message to the BMS.

[0031] The passive temperature sensing element starts the aerosol spraying and feeds back to the control host when the temperature of the energy storage cabinet is higher than the second temperature threshold.

[0032] Beneficial effects of the present application: Different from the prior art, the present application discloses a control method and system for an energy storage cabinet, which relates to the technical field of energy storage systems; the control method includes an active control mode, which includes the following steps: step S11: obtaining the temperature of the energy storage cabinet based on the temperature detector and obtaining the smoke concentration based on the smoke detector; step S12: controlling the host to obtain the temperature and smoke concentration of the energy storage cabinet; outputting an alarm signal based on the comparison between the operating temperature and the temperature threshold and the comparison between the smoke concentration and the concentration threshold; step S121: outputting a single alarm signal and starting an alarm bell if the operating temperature is greater than the first temperature threshold or the smoke concentration is greater than the concentration threshold; step S122: outputting a combined alarm signal and starting a high-voltage emergency stop system and an audible and visual alarm if the operating temperature is greater than the first temperature threshold and the smoke concentration is greater than the concentration threshold, and the FFS aerosol is started after a delay time. Rapid response and safe handling of the energy storage cabinet under abnormal conditions are achieved, while reducing the impact on the environment and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] in:

[0035] Figure 1 A schematic diagram of a flow chart of an active control mode 1 embodiment provided in the present application;

[0036] Figure 2 A schematic diagram of a flow chart of an embodiment of a passive control mode provided in the present application;

[0037] Figure 3 A schematic structural diagram of an embodiment of a control system of an energy storage cabinet provided in the present application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0039] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The present application provides a control method and system for an energy storage cabinet. The control method for the energy storage cabinet includes an active control mode, such as Figure 1 As shown, Figure 1 The flowchart of an active control mode embodiment provided in this application includes the following steps:

[0042] Step S11: The temperature of the energy storage cabinet is obtained based on the temperature detector, and the smoke concentration is obtained based on the smoke detector; by real-time monitoring of the temperature and smoke concentration in the energy storage cabinet, any possible abnormal conditions, such as signs of overheating or burning, can be discovered early.

[0043] Step S12: The control host obtains the temperature and smoke concentration of the energy storage cabinet; outputs an alarm signal based on the comparison between the operating temperature and the temperature threshold and the comparison between the smoke concentration and the concentration threshold; the control host, as the "brain" of the system, receives data from the temperature and smoke detectors and analyzes them according to the preset safety threshold. This centralized processing method can quickly and accurately determine whether an alarm needs to be triggered, improving the response speed and reliability of the system.

[0044] Step S121: If the operating temperature is greater than the first temperature threshold or the smoke concentration is greater than the concentration threshold, a single alarm signal is output and the alarm bell is activated; even if only one of the temperature or smoke exceeds the safe range, the system will immediately sound an alarm to remind the operator of potential risks; by setting different thresholds such as the first temperature threshold, unnecessary alarms due to environmental factors can be avoided, while ensuring that real safety hazards are not ignored.

[0045] Step S122: If the operating temperature is greater than the first temperature threshold and the smoke concentration is greater than the concentration threshold, a combined alarm signal is output and the high-voltage emergency stop system and the sound and light alarm are activated. The FFS aerosol is activated after a delay time. When the temperature and smoke concentration exceed the standard at the same time, it means that there may be a more serious fire hazard. At this time, the system will trigger a higher level of response mechanism, including starting the high-voltage emergency stop system to cut off the power supply, and the sound and light alarm to alert all relevant personnel.

[0046] The activation of FFS aerosol is equipped with a delay time, which allows the staff to evaluate the situation during this period. If necessary, they can suspend the fire-fighting operation by manually pressing the emergency stop button, thus avoiding unnecessary release of fire-extinguishing agent. If it is assessed that there is indeed a fire threat, the aerosol will be automatically sprayed after the delay ends, quickly suppressing the spread of fire and minimizing losses.

[0047] If the delay time is too long, the aerosol cannot extinguish the fire in time when a fire occurs, causing damage to resources; if the delay time is too short, when the system misjudges, the staff cannot press the manual emergency stop button in time to suspend the fire extinguishing operation, increasing material loss; for example, the delay time is 30 seconds. In other embodiments, the delay time can take other values ​​and there is no limitation on this.

[0048] In summary, the active control mode of this embodiment can effectively monitor the operating status of the energy storage cabinet and provide appropriate responses in abnormal situations of different levels. It combines the functions of early warning and immediate intervention, which not only ensures the safety of the system, but also reduces the waste of resources caused by false alarms or overreactions. In addition, by introducing a delay mechanism and manual intervention options, the system becomes more flexible and reliable, and is suitable for various complex working environments.

[0049] In one embodiment, the control method further includes a passive control mode, such as Figure 2 As shown, Figure 2 The flowchart of the passive control mode 1 embodiment provided in this application includes:

[0050] The pressure sensor monitors the gas pressure in the energy storage cabinet;

[0051] If the gas pressure is greater than the pressure threshold, the explosion relief device opens to relieve the cabinet pressure; the explosion relief device responds quickly and reduces the internal pressure by releasing the over-pressure gas in the energy storage cabinet to prevent explosion or structural damage caused by high pressure.

[0052] The pressure sensor does not send data to the control host. When the pressure is greater than the pressure threshold, the explosion relief device is directly opened, which improves safety.

[0053] In this embodiment, when the gas pressure in the energy storage cabinet is greater than 0.01 MPa, the explosion relief device is automatically opened and the cabinet is depressurized; that is, the pressure threshold of this embodiment is 0.01 MPa. In other embodiments, the pressure threshold may be another value, and no limitation is made to this.

[0054] When the gas pressure in the energy storage cabinet rises abnormally, the explosion relief device can respond quickly and release the over-pressure gas in time, effectively avoiding explosion accidents caused by high pressure; by timely pressure relief, the energy storage cabinet and its internal components can be protected from damage by high pressure, extending the service life of the equipment.

[0055] Passive control mode also includes:

[0056] Passive temperature sensing elements continuously monitor the temperature of the energy storage cabinet; passive temperature sensing elements can be thermistors, bimetallic strips, etc. Passive temperature sensing elements do not rely on external power supplies and can still work normally even in the event of power outages or other control system failures, providing additional safety protection;

[0057] If the temperature of the energy storage cabinet is greater than the second temperature threshold, the aerosol spraying is started and fed back to the control host. When the temperature exceeds the preset threshold, the passive temperature sensing element can immediately trigger the aerosol spraying without waiting for the control host's command, greatly shortening the reaction time.

[0058] In this embodiment, when the energy storage cabinet detects a temperature of 170±10°C, the aerosol is activated, that is, the second temperature threshold of this embodiment is 170±10°C. In other embodiments, the second temperature threshold may be another value without any limitation. It should be clarified that this application does not limit the magnitude relationship between the first temperature threshold and the second temperature threshold. The first temperature threshold may be greater than the second temperature threshold, the second temperature threshold may also be greater than the first temperature threshold, and the first temperature threshold and the second temperature threshold may also be equal.

[0059] In this embodiment, the "Do Not Enter" light is also turned on. The purpose of turning on the "Do Not Enter" light is not only to warn external personnel, but also to provide intuitive visual feedback to the control center and maintenance personnel, indicating that the fire extinguishing system has been activated and is performing fire extinguishing operations. This helps relevant personnel to take corresponding safety measures in a timely manner, such as evacuating personnel, turning off the power, etc.

[0060] In one embodiment, the high-voltage emergency stop system can be controlled by an emergency start button. When the emergency start button is pressed, the high-voltage emergency stop system starts; pressing the emergency start button not only starts the high-voltage emergency stop system, but also triggers a series of chain reactions, such as shutting down the exhaust fan, starting the sound and light alarm, delaying the start of the aerosol, etc., to ensure comprehensive safety protection.

[0061] The emergency start button provides the most direct way to quickly cut off the high-voltage power supply in an emergency to prevent the accident from further deteriorating. Compared with relying on the detection and response of the automatic system, the manual button can be operated by on-site personnel at the first time, reducing reaction time and improving safety.

[0062] In one embodiment, the control method of the energy storage cabinet controls the start of the aerosol based on the emergency stop button. If the emergency stop button is pressed within the delay time, the aerosol will not start.

[0063] When the temperature detector and the smoke detector detect an abnormality at the same time (i.e. the operating temperature is greater than the first temperature threshold and the smoke concentration is greater than the concentration threshold), the control host outputs a combined alarm signal; the combined alarm signal will start the high-voltage emergency stop system, shut down the exhaust fan, and start the sound and light alarm; the control system enters a 30-second delay state, during which time it is ready to start the FFS aerosol fire extinguishing system; the deflation do not enter light is on, reminding personnel that the aerosol spraying is about to start and they need to evacuate quickly; within the 30-second delay time, if the operator finds a false alarm or confirms that the aerosol does not need to be started, the emergency stop button can be pressed immediately; the emergency stop button sends a stop signal to the control system to interrupt the aerosol start-up program; the delay time is kept at a 30-second cycle. Wait for manual reset and the system will recover.

[0064] Providing an opportunity for manual intervention during the delay time can avoid unnecessary release of aerosols due to false alarms or other non-fire reasons, saving resources and reducing the impact on the environment; although aerosols can achieve efficient fire extinguishing, their release may cause damage to certain sensitive equipment; the emergency stop button can be used to avoid such damage if it is confirmed that fire extinguishing is not necessary.

[0065] In one embodiment, the control method of the energy storage cabinet controls the activation of the aerosol based on a maintenance switch. When the maintenance switch is pressed to enter the maintenance state, the aerosol cannot be activated.

[0066] When the energy storage cabinet needs to be maintained, inspected or debugged, the operator can press the maintenance switch to switch it to "maintenance mode"; the state change of the maintenance switch will immediately send a signal to the control system; after receiving the signal from the maintenance switch, the control system enters the maintenance state; in the maintenance state, the control system will disable the start function of the aerosol fire extinguishing system to ensure that the aerosol will not start even if the combined alarm signal or other start conditions are triggered.

[0067] During maintenance or overhaul, the aerosol will not be accidentally activated, avoiding the release of fire extinguishing agent due to misoperation or sensor false alarm, and protecting the safety of maintenance personnel; in maintenance mode, system faults can be more easily troubleshooted and repaired without worrying about interference from aerosol.

[0068] In one embodiment, the control host is connected to the BMS; not only can the control host send signals to the BMS, but the BMS can also send instructions or status information to the control host, thereby realizing two-way communication.

[0069] When the aerosol is sprayed, the control host outputs a deflation signal to the BMS; when the control host detects that the aerosol fire extinguishing system needs to be activated, such as when the temperature and smoke exceed the standard at the same time, the aerosol spraying will be activated.

[0070] When the energy storage cabinet is faulty, the control host outputs a fault signal to the BMS; when a serious fault is detected in the energy storage cabinet (such as battery short circuit, overheating, overvoltage, etc.), the control host will determine that the energy storage cabinet is faulty; at this time, the control host will send a "fault signal" to the BMS, indicating that the energy storage cabinet has an irrecoverable fault.

[0071] When the control host outputs a combined alarm signal, it outputs a fire alarm signal to the BMS; after receiving the fire alarm signal, the BMS will immediately activate the emergency plan, such as starting the high-voltage emergency stop system, shutting down the exhaust fan, starting the sound and light alarm, notifying the fire department, etc., to quickly respond to the fire situation.

[0072] Operators can centrally monitor and manage the entire energy storage system through BMS, which improves the convenience and efficiency of operation; the control host can promptly transmit important information such as aerosol spraying, faults and fire alarms to BMS, and BMS can immediately take corresponding safety measures to effectively prevent the expansion of accidents.

[0073] In one embodiment, the BMS sends instructions to the fan based on the internal state, forcing the fan to turn on to improve ventilation conditions; the BMS monitors multiple key parameters in the energy storage cabinet in real time, including but not limited to battery temperature, gas concentration, voltage, current, etc.; when it is detected that the temperature in the energy storage cabinet exceeds a preset safety threshold, the BMS will determine that the fan needs to be started to lower the temperature; if the gas detector detects that the concentration of combustible gas or harmful gas exceeds the safety limit, the BMS will also trigger the fan to start to dilute and discharge these gases.

[0074] By starting the fan in time, the temperature inside the energy storage cabinet can be effectively reduced to prevent fire or other safety hazards caused by overheating; starting the fan can help dilute and discharge flammable or harmful gases, reducing the risk of explosion and poisoning; forced starting of the fan helps maintain a suitable temperature inside the energy storage cabinet, extend the service life of the battery, and improve system performance.

[0075] In this embodiment, the BMS may start the fan directly, or may start the fan based on the detection result of the gas detector by sending a signal to the gas detector, and there is no limitation on this.

[0076] In one embodiment, when the gas detector detects abnormal gas concentration, it sends a start signal to the fan to start the fan and notifies the BMS to perform alarm processing; the gas detector can start the fan as soon as the abnormal gas concentration is detected, quickly improve the ventilation conditions, and prevent the risk of explosion or poisoning caused by gas accumulation; by notifying the BMS to perform alarm processing, it is ensured that the system can take comprehensive safety measures, such as turning off the power, starting the emergency stop system, etc., to further improve safety.

[0077] The present application also provides a control system for an energy storage cabinet, which can apply the control method for the energy storage cabinet in any of the above embodiments; Figure 3 As shown, Figure 3 A schematic diagram of a control system of an energy storage cabinet provided in the present application includes:

[0078] Temperature detector and smoke detector. The temperature detector is used to obtain the temperature inside the energy storage cabinet; the smoke detector is used to obtain the smoke concentration inside the energy storage cabinet.

[0079] The control host is connected to the BMS. The control host is used to receive and process signals from detectors and other components and output corresponding control instructions.

[0080] An aerosol is activated in response to specific conditions to perform a fire extinguishing operation; a maintenance switch is used to prevent the unintended activation of the aerosol in a maintenance state.

[0081] High-voltage emergency stop system: The high-voltage emergency stop system starts when the control host outputs a combined alarm signal or the emergency start button is pressed.

[0082] The sound and light alarm and bell will be activated when the control host outputs a single alarm signal; the sound and light alarm will be activated when the control host outputs a combined alarm signal.

[0083] The explosion relief device automatically opens to release the overpressure when the gas pressure in the energy storage cabinet exceeds the pressure threshold.

[0084] Manual emergency stop button to suspend the fire extinguishing operation during the delay period before the aerosol is activated.

[0085] The gas detector is used to send a command to turn on the fan when the gas concentration exceeds the standard and send an alarm message to the BMS.

[0086] Passive temperature sensing element, when the temperature of the energy storage cabinet is higher than the second temperature threshold, the aerosol is started to spray and the feedback is sent to the control host.

[0087] In this embodiment, the BMS is connected to the user end via optical fiber / RS485, and the user can centrally manage multiple energy storage systems on one platform, simplifying the operation process and improving management efficiency. The user can monitor the operating status of the energy storage system in real time, including key parameters such as battery voltage, current, temperature, SOC (state of charge), SOH (state of health), etc.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation described above is only illustrative, for example, the division of the modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0090] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0091] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method for an energy storage cabinet, characterized in that: The control method includes an active control mode, and the active control mode includes the following steps: Step S11: obtaining the temperature of the energy storage cabinet based on the temperature detector, and obtaining the smoke concentration based on the smoke detector; Step S12: controlling the host to obtain the temperature of the energy storage cabinet and the smoke concentration; outputting an alarm signal based on the comparison between the operating temperature and the temperature threshold and the comparison between the smoke concentration and the concentration threshold; Step S121: if the operating temperature is greater than a first temperature threshold or the smoke concentration is greater than a concentration threshold, a single alarm signal is output and an alarm bell is activated; Step S122: If the operating temperature is greater than the first temperature threshold and the smoke concentration is greater than the concentration threshold, a combined alarm signal is output and the high-voltage emergency stop system and the sound and light alarm are activated, and the FFS aerosol is activated after a delay time.

2. The control method of the energy storage cabinet according to claim 1, characterized in that: The control method further includes a passive control mode, and the passive control mode includes: The pressure sensor monitors the gas pressure in the energy storage cabinet; If the gas pressure is greater than the pressure threshold, the explosion relief device opens to relieve the cabinet pressure.

3. The control method of the energy storage cabinet according to claim 2, characterized in that: The passive control mode also includes: Passive temperature sensing elements continuously monitor the temperature of the energy storage cabinet; If the temperature of the energy storage cabinet is greater than the second temperature threshold, the aerosol is started to spray and the spraying is fed back to the control host.

4. The control method of the energy storage cabinet according to claim 1, characterized in that: The high-voltage emergency stop system can be controlled by an emergency start button. When the emergency start button is pressed, the high-voltage emergency stop system starts.

5. The control method of the energy storage cabinet according to claim 4, characterized in that: The control method of the energy storage cabinet controls the start of the aerosol based on an emergency stop button. If the emergency stop button is pressed within the delay time, the aerosol will not start.

6. The control method of the energy storage cabinet according to claim 1, characterized in that: The control method of the energy storage cabinet controls the start of the aerosol based on a maintenance switch. When the maintenance switch is pressed to enter a maintenance state, the aerosol cannot be started.

7. The control method of the energy storage cabinet according to claim 1, characterized in that: The control host is connected to the BMS; when the aerosol is sprayed, the control host outputs a deflation signal to the BMS; when the energy storage cabinet is necrotic, the control host outputs a fault signal to the BMS; when the control host outputs a combined alarm signal, the control host outputs a fire alarm signal to the BMS.

8. The control method of the energy storage cabinet according to claim 7, characterized in that: The BMS sends instructions to the fan based on the internal state, forcing the fan to be turned on to improve ventilation conditions.

9. The control method of the energy storage cabinet according to claim 8, characterized in that: When the gas detector detects abnormal gas concentration, it sends a start signal to the fan to start the fan and notifies the BMS to perform alarm processing.

10. A control system for an energy storage cabinet, which can be applied to the control method for an energy storage cabinet as claimed in any one of claims 1 to 9, characterized in that: include: A temperature detector and a smoke detector, wherein the temperature detector is used to obtain the temperature inside the energy storage cabinet; The smoke detector is used to obtain the smoke concentration in the energy storage cabinet; A control host connected to the BMS, the control host is used to receive and process signals from detectors and other components, and output corresponding control instructions; an aerosol, which is activated in response to a specific condition to perform a fire extinguishing operation; a maintenance switch, which is used to prevent the unintended activation of the aerosol in a maintenance state; A high-voltage emergency stop system, which is activated when the control host outputs a combined alarm signal or an emergency start button is pressed; The sound and light alarm and the alarm bell are activated when the control host outputs a single alarm signal; the sound and light alarm is activated when the control host outputs a combined alarm signal; The explosion relief device automatically opens to release the overpressure when the gas pressure in the energy storage cabinet exceeds the pressure threshold; Manual emergency stop button to suspend the fire extinguishing operation during the delay period before the aerosol is activated; The gas detector is used to send a command to turn on the fan when the gas concentration exceeds the standard and send an alarm message to the BMS. The passive temperature sensing element starts the aerosol spraying and feeds back to the control host when the temperature of the energy storage cabinet is higher than the second temperature threshold.

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