A five-dimensional closed-loop control method for new energy storage power stations

Abstract

The present invention belongs to the field of fire protection system technology, and specifically relates to a five-dimensional closed-loop prevention and control method for a new energy storage power station, comprising the following steps: A. Monitoring the environmental parameters within the battery box and the voltage, current, and resistance information of each sensor, obtaining data before and after different times through multiple feedback at different times; B. Making intelligent decisions through multi-parameter coupling analysis based on the monitoring information and the historical status information of the battery cluster; C. Activating the heat exchange component to cool the battery box if the temperature is above 40 degrees Celsius; D. Activating the active cooling component to cool and extinguish the fire if thermal runaway occurs. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. This method uses different schemes to respond to different dangerous situations, makes intelligent decisions based on firefighting big data, and responds more quickly, improves firefighting efficiency, and enhances personnel safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire protection systems, and specifically relates to a five-dimensional closed-loop prevention and control method for a new energy storage power station. Background Art

[0002] The suppression fire extinguishing system uses liquid fire extinguishing agents or suppressants at normal temperature and low pressure, including perfluorohexanone, heptafluoropropane, bromotrifluoropropylene (BTP) and fine water mist water-based fire extinguishing suppressants, composite fire extinguishing agents, etc.

[0003] At different stages of thermal runaway, different cooling mechanisms are activated to provide cooling; thermal runaway is suppressed during its onset; and fires are extinguished in their early stages. In the event of exhaust gas leakage, the battery management system may not be able to shut down the battery power in a timely manner or effectively prevent the damaged battery's temperature from continuing to rise to the point of thermal runaway. This solution was developed to address these issues. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a five-dimensional closed-loop prevention and control method for a new energy storage power station, which can effectively control thermal failure.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a five-dimensional closed-loop control method for a new energy storage power station, comprising the following steps:

[0006] A. Monitor the environmental parameters inside the battery box and the voltage, current, and resistance information of each sensor, and obtain data before and after different times through multiple feedback at different times;

[0007] B. Make intelligent decisions based on monitoring information and historical status information of the battery cluster through multi-parameter coupling analysis;

[0008] C. If the battery box temperature is higher than 40 degrees Celsius, start the heat exchange component to cool it down;

[0009] D. If thermal runaway occurs, activate the active cooling component to cool and extinguish the fire;

[0010] D1: Thermal runaway is about to occur, and the cluster-level cooling solution is activated;

[0011] D2: In the early stages of thermal runaway, the cabin-level cooling solution is activated, and the power is cut off. The battery box releases the first inhibitor to suppress thermal runaway, and the inhibitor is released around the battery cluster to form a partition wall;

[0012] D3, during the thermal runaway period, the second inhibitor is released to suppress the thermal runaway;

[0013] D4: At the initial stage of a fire, the first fire extinguishing agent is released to extinguish the fire. Simultaneously, the audible and visual alarms are activated, the fans are in operation, and a signal is sent to the municipal firefighting facilities. Upon finding that the fire cannot be suppressed, the second fire extinguishing agent is released to extinguish the fire. After the fire is successfully extinguished, a second thermal runaway occurs, and the third fire extinguishing agent is released to extinguish the fire.

[0014] In step D2, the device for releasing the inhibitor around the battery cluster to form a partition wall includes a dual inhibitor delivery pipe, a movable frame, an injection assembly, and a recovery assembly. The dual inhibitor delivery pipe extends to the top of the battery cluster, the movable frame is movable and placed on the dual inhibitor delivery pipe, and the injection assembly is mounted on the movable frame. The dual inhibitor delivery pipes corresponding to the top of the battery cluster are respectively provided with a first one-way valve connected to the injection assembly. The injection assembly is provided with a second one-way valve connected to the first one-way valve when it is raised and lowered. The recovery assembly is connected to the injection assembly via a delivery pipe, and an active winding wheel that winds around the delivery pipe is mounted on the movable frame.

[0015] Partition assemblies are movably installed on all four sides of the battery box, and the partition assemblies are located between adjacent battery boxes. The partition assemblies include a movable plate, a fire-resistant partition plate and a horizontal driver. The movable plate is movably installed between adjacent battery boxes, and a slot is provided on the movable plate. The fire-resistant partition plate is inserted into the slot. The horizontal driver is installed underground and is connected to the movable plate drive. An air guide channel is provided in the fire-resistant partition plate, and multiple through holes connected to the air guide channel are evenly opened on both symmetrical sides of the fire-resistant partition plate. A conduction pipe connected to the air guide channel is provided at the bottom of the movable plate, and the conduction pipe is connected to an external fan.

[0016] The environmental parameters in step A include temperature information, gas composition information and pressure information, and the monitoring equipment used includes a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor and an electrolyte leakage monitoring sensor. The temperature sensor, optical smoke sensor, hydrogen gas sensor, carbon monoxide smoke sensor, pressure sensor and electrolyte leakage monitoring sensor are installed inside the battery box.

[0017] In step B, the data integration and transmission are placed in the control system, and the control system's calculations are combined with the fire big data platform to perform data analysis, intelligent early warning and hidden danger inspection, and make intelligent decisions.

[0018] In step C, when the battery temperature is higher than 40 degrees Celsius, liquid cooling is started. A liquid cooling plate is provided on the bottom plate inside the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be maintained below 40 degrees Celsius.

[0019] In step D1, thermal runaway is about to occur, and air cooling and liquid cooling are activated. The air cooling involves fixing a fan behind the battery cluster, using a direct-drive high-power fan group and intelligent electronic control. The liquid cooling involves setting up a liquid circulation cooling channel inside the battery cluster and reducing the temperature of the battery box through a heat exchanger, compressor, and condenser.

[0020] In step D2, in the early stage of thermal runaway, air cooling and water mist cooling are started. The water mist cooling is to set a water mist nozzle on the top of the battery box to release a water mist type water-based fire extinguishing inhibitor through the water mist nozzle.

[0021] The spray assembly includes a fixed frame and four groups of nozzles. The fixed frame is fixedly installed on the movable frame. The four groups of nozzles are respectively installed on the four sides of the fixed frame. The four groups of nozzles are connected to a main pipeline. The main pipeline is connected to the second one-way valve. A lifting cylinder for driving the second one-way valve to rise and fall is installed on the fixed frame.

[0022] The recovery component includes a connecting frame, which is connected to the recovery component through a pull rope, and the pull rope is wound around the active winding wheel. The connecting frame is equipped with a recovery trough at the position corresponding to the output of the injection component. A transmission pump is installed on one side of the recovery trough, and the transmission pump is connected to the transmission pipe.

[0023] A driving wheel is installed on the moving end of the mobile frame. The outer diameter of the driving wheel is provided with a limiting groove that matches the diameter of the inhibitor double delivery pipe. A driving motor for driving the driving wheel to rotate is installed on the mobile frame.

[0024] A heat dissipation channel is provided in the air guide channel, an air outlet connected to the heat dissipation channel is provided on the top of the fire-resistant partition board, a shielding plate is provided on the fire-resistant partition board, and an air guide pipe connected to the heat dissipation channel is provided on the bottom of the movable plate, and the air guide pipe is connected to a centrifugal fan.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. This method uses different schemes to deal with different dangerous situations, makes intelligent decisions through firefighting big data, responds more quickly, has better firefighting efficiency, and better ensures the safety of personnel.

[0027] 2. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. Through the liquid cooling control unit and the liquid cooling unit on the liquid cooling plate and the battery box panel, the internally circulated liquid performs heat exchange to achieve real-time regulation of battery temperature and better protect the battery system.

[0028] 3. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. When the battery box is operating normally without thermal runaway, it transmits cold air through an external fan in conjunction with a conduction pipe, so that the cold air enters the air guide channel and is blown out through multiple through holes, thereby cooling the battery box. Its fire-resistant partition board can isolate adjacent battery boxes. When thermal runaway occurs, the device for releasing inhibitors around the battery cluster to form a partition wall is started. At the same time, the horizontal drive drives the movable plate to drive the fire-resistant partition board to move toward the battery box with thermal runaway, so that it is placed on the outside of the inhibitor holding isolation wall, and cooperates with the air outlet of multiple through holes to blow the inhibitor of the inhibitor holding isolation wall toward the battery box to suppress thermal runaway. In addition, the fire-resistant partition board can also continuously blow air to the adjacent battery box to prevent the heat energy generated by the battery box with thermal runaway from affecting the adjacent battery box, thereby providing further protection.

[0029] 4. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station, including a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor, and an electrolyte leakage monitoring sensor. Multiple sensors are built into the battery box to collect environmental data and voltage, current, resistance, and other signals transmitted by the battery box control panel, and transmitted to the control system. The processor stores the collected data in a "database" in the ROM for analysis, judgment, and processing; graded early warning and alarm are performed based on the characteristics of different stages of thermal runaway of lithium-ion batteries, realizing early perception, intelligent judgment, early warning, and fire alarm capabilities; when a fire occurs, the lithium battery box fire suppression device can be automatically activated to extinguish and suppress the fire, and at the same time, it can communicate, display, and link with the battery box control panel or the vehicle CAN.

[0030] 5. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. In the early stage of thermal runaway of a battery cluster, a mobile frame is moved and placed above the battery cluster, a first one-way valve is docked with a second one-way valve, and then an active winding wheel drives the lowering of the transmission pipe. Simultaneously, a recovery assembly is lowered and placed on the ground inside the battery box, so that the battery cluster in thermal runaway is placed inside the recovery assembly. Then, the spray assembly sprays an inhibitor to cover the battery cluster, and the recovery assembly recovers the inhibitor, causing the inhibitor to continue to descend to form an isolation wall, thereby preventing the battery cluster in thermal runaway from affecting adjacent battery clusters and further preventing the trend of thermal runaway.

[0031] 6. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. The heat generated by the battery box will rise based on the top, so that the air at the top will be higher. At this time, if heat is not dissipated, the top of the battery box is prone to thermal runaway. Therefore, a centrifugal fan is used in conjunction with an air duct to allow hot air to enter from the air port and move along the heat dissipation channel and be discharged, thereby dissipating heat from the top to prevent the top of the battery box from being prone to thermal runaway. A baffle is provided to prevent water spray or inhibitors from entering the heat dissipation channel. In the event of thermal runaway, the impeller of the centrifugal fan rotates counterclockwise to supply air, and the air is output through the air port in conjunction with the air duct and the heat dissipation channel. The blown wind is blocked by the baffle to move horizontally, thereby forming a wind curtain on the top of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the five-dimensional closed-loop prevention and control method of the present invention;

[0033] Figure 2 This is a flow chart of monitoring and early warning of the present invention;

[0034] Figure 3 Schematic diagram of the intelligent decision-making process of the present invention;

[0035] Figure 4 A schematic diagram of the active safety method of the present invention;

[0036] Figure 5 A schematic diagram of the passive safety method of the present invention;

[0037] Figure 6 A schematic diagram of the fire safety method of the present invention;

[0038] Figure 7 A schematic diagram of the position structure of the device for forming a partition wall and partition components of the present invention;

[0039] Figure 8 A schematic diagram of the structure of a device for forming a partition wall according to the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of the recovery component of the present invention descending;

[0041] Figure 10 It is a structural schematic diagram of the partition assembly of the present invention;

[0042] Figure 11 This is a schematic structural diagram of the partition assembly of the present invention from another perspective;

[0043] Figure 12 Schematic diagram of the cross-sectional structure of the fire-resistant partition board of the present invention;

[0044] Figure 13 It is an enlarged structural schematic diagram of the cross-section A of the fire-resistant partition board of the present invention.

[0045] Markings in the figure: 1. Double conveying pipe of inhibitor; 2. Moving frame; 201. Driving wheel; 202. Driving motor; 3. Injection assembly; 301. Fixed frame; 302. Nozzle; 303. Lifting cylinder; 4. Recovery assembly; 401. Connecting frame; 402. Recovery tank; 403. Transmission pump; 5. First one-way valve; 6. Second one-way valve; 7. Transmission pipe; 8. Active winding wheel; 9. Partition assembly; 901. Moving plate; 902. Fire-resistant partition board; 903. Horizontal drive; 904. Slot; 905. Air guide channel; 906. Through hole; 907. Conducting pipe; 908. Heat dissipation channel; 909. Shielding plate; 9010. Air guide duct; 9011. Centrifugal fan. DETAILED DESCRIPTION

[0046] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0047] like Figures 1-13 As shown, this embodiment provides a five-dimensional closed-loop control method for a new energy storage power station, including the following steps:

[0048] A. Monitor the environmental parameters within the battery box and the voltage, current, and resistance information of each sensor, and obtain data before and after different times through multiple information feedback at different times. Specifically, the environmental parameters in step A include temperature information, gas composition information, and pressure information. The monitoring equipment includes a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor, and an electrolyte leakage monitoring sensor. The temperature sensor, optical smoke sensor, hydrogen gas sensor, carbon monoxide smoke sensor, pressure sensor, and electrolyte leakage monitoring sensor are installed inside the battery box. Temperature sensors, optical smoke sensors, hydrogen gas sensors, carbon monoxide smoke sensors, pressure sensors and electrolyte leakage monitoring sensors, multiple sensors are built into the battery box to collect environmental data and collect voltage, current, resistance and other signals transmitted by the battery box control panel, and transmit them to the control system. The processor puts the collected data into the "database" in the ROM for analysis, judgment and processing; it performs graded early warning and alarm according to the characteristics of different stages of thermal runaway of lithium-ion batteries, realizing early perception, intelligent judgment, early warning and fire alarm capabilities; when a fire occurs, the lithium battery box fire suppression device can be automatically started to extinguish and suppress the fire, and it can also communicate, display and link with the battery box control panel or the vehicle CAN.

[0049] B. Based on monitoring information and historical battery cluster status information, multi-parameter coupled analysis is used to make intelligent decisions. Specifically, in step B, data integration and transmission are placed in the control system. The control system's calculations are combined with the fire protection big data platform to perform data analysis, intelligent early warning, and hidden danger detection, and then make intelligent decisions. The control system includes the EMS and BMS.

[0050] C. If the battery box temperature is higher than 40 degrees Celsius, start the heat exchange component to cool it down. Specifically, in step C, when the battery temperature is higher than 40 degrees Celsius, start liquid cooling. A liquid cooling plate is provided on the bottom plate of the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be maintained below 40 degrees Celsius.

[0051] D. If thermal runaway occurs, activate the active cooling component to cool and extinguish the fire;

[0052] D1: Thermal runaway is imminent, and the cluster-level cooling solution is activated. Specifically, in step D1, thermal runaway is imminent, and air cooling and liquid cooling are activated. Air cooling involves fixing the fan behind the battery cluster and using a direct-drive high-power fan group with intelligent electronic control. Liquid cooling involves setting up a liquid circulation cooling channel inside the battery cluster and reducing the temperature of the battery box through a heat exchanger, compressor, and condenser.

[0053] D2. In the early stages of thermal runaway, the cabin-level cooling solution is activated, and the power is cut off. The battery box releases the first inhibitor to suppress thermal runaway, and the inhibitor is released around the battery cluster to form a partition wall. Specifically, in step D2, in the early stages of thermal runaway, air cooling and fine water mist cooling are activated. The fine water mist cooling is to set a fine water mist nozzle 302 at the top of the battery box, and release a fine water mist water-based fire extinguishing inhibitor through the fine water mist nozzle 302.

[0054] D3, during the thermal runaway period, the second inhibitor is released to suppress the thermal runaway;

[0055] D4: At the initial stage of a fire, the first fire extinguishing agent is released to extinguish the fire. Simultaneously, the audible and visual alarms are activated, the fans are in operation, and a signal is sent to the municipal firefighting facilities. Upon finding that the fire cannot be suppressed, the second fire extinguishing agent is released to extinguish the fire. After the fire is successfully extinguished, a second thermal runaway occurs, and the third fire extinguishing agent is released to extinguish the fire.

[0056] In step D2, the device for releasing inhibitor around the battery cluster to form a partition wall includes a dual inhibitor delivery pipe 1, a mobile frame 2, an injection assembly 3, and a recovery assembly 4. The dual inhibitor delivery pipe 1 extends to the top of the battery cluster, and the mobile frame 2 is movable and placed on the dual inhibitor delivery pipe 1. A drive wheel 201 is mounted on the movable end of the mobile frame 2. The outer diameter of the drive wheel 201 is provided with a retaining groove that matches the diameter of the dual inhibitor delivery pipe 1. The mobile frame 2 is equipped with a drive motor 202 that drives the drive wheel 201. The injection assembly 3 is mounted on the mobile frame 2. The dual inhibitor delivery pipe 1 is provided with a first one-way valve 5 connected to the injection assembly 3 at the position corresponding to the top of the battery cluster. The injection assembly 3 is provided with a second one-way valve 6 connected to the first one-way valve 5 when it is raised and lowered. The recovery assembly 4 is connected to the injection assembly 3 via a delivery pipe 7, and the mobile frame 2 is equipped with an active winding wheel 8 that winds around the delivery pipe 7. Specifically, the inhibitor dual delivery pipes 1, the mobile frame 2, the injection assembly 3, the recovery assembly 4, the first one-way valve 5, the second one-way valve 6, the transmission pipe 7, and the active winding wheel 8 are all coated with a fire-retardant coating. In the early stages of thermal runaway of a battery cluster, the mobile frame 2 is moved and placed above the battery cluster, the first one-way valve 5 docks with the second one-way valve 6, and then the active winding wheel 8 drives the transmission pipe 7 to be lowered. Simultaneously, the recovery assembly 4 is lowered and placed on the ground inside the battery box, so that the battery cluster experiencing thermal runaway is placed inside the recovery assembly 4. The injection assembly 3 then sprays the inhibitor to cover the battery cluster, while the recovery assembly 4 recovers the inhibitor, causing the inhibitor to continue to descend and form an isolation wall, preventing the battery cluster experiencing thermal runaway from affecting adjacent battery clusters and further preventing the trend of thermal runaway.

[0057] Partition assemblies 9 are movably installed around the battery box, and the partition assemblies 9 are located between adjacent battery boxes. The partition assemblies 9 include a movable plate 901, a fire-resistant partition plate 902 and a horizontal driver 903. The movable plate 901 is movably installed between adjacent battery boxes, and a slot 904 is provided on the movable plate 901. The fire-resistant partition plate 902 is inserted into the slot 904. The horizontal driver 903 is installed underground and is connected to the movable plate 901. An air guide duct 905 is provided in the fire-resistant partition plate 902, and a plurality of through holes 906 connected to the air guide duct 905 are evenly opened on both symmetrical sides of the fire-resistant partition plate 902. A conduction pipe 907 connected to the air guide duct 905 is provided at the bottom of the movable plate 901, and the conduction pipe 907 is connected to an external fan. When the battery box is operating normally without thermal runaway, it transmits cold air through the external fan in conjunction with the conduction pipe 907, so that the cold air enters the air guide channel 905 and is blown out through multiple through holes 906, thereby cooling the battery box. Its fire-resistant partition plate 902 can isolate adjacent battery boxes. In the event of thermal runaway, the device for releasing inhibitors around the battery cluster to form a partition wall is activated. At the same time, the horizontal driver 903 drives the movable plate 901 to drive the fire-resistant partition plate 902 to move toward the battery box with thermal runaway, so as to be placed on the outside of the inhibitor holding isolation wall, and cooperates with the air outlet of multiple through holes 906 to blow the inhibitor of the inhibitor holding isolation wall toward the battery box to suppress thermal runaway. In addition, the fire-resistant partition plate 902 can also continuously blow air to the adjacent battery box to prevent the heat energy generated by the thermal runaway battery box from affecting the adjacent battery box, thereby providing further protection.

[0058] Specifically, the first fire extinguishing agent is perfluorohexanone + coated hollow glass microsphere powder + nitrogen; the second inhibitor is one of perfluorohexanone, heptafluoropropane or BTP, preferably perfluorohexanone, and the third fire extinguishing agent is heptafluoropropane and fine water mist type water-based fire extinguishing inhibitor.

[0059] This method is used to respond to different dangerous situations through different solutions, and makes intelligent decisions through fire big data, which results in faster response, better fire extinguishing efficiency, and better personnel safety assurance.

[0060] Furthermore, the spray assembly 3 includes a fixed frame 301 and four sets of spray heads 302. The fixed frame 301 is fixedly mounted on the mobile frame 2. The four sets of spray heads 302 are mounted on the four sides of the fixed frame 301. The four sets of spray heads 302 are connected to a main pipeline, which is connected to the second one-way valve 6 and has a connecting pipeline connected to the transmission pipe 7. The fixed frame 301 is equipped with a lifting cylinder 303 that drives the second one-way valve 6 to rise and fall. The lifting cylinder 303 drives the second one-way valve 6 to connect with the second one-way valve 6. The main pipeline then transmits the inhibitor, which is sprayed out through the spray heads 302 to form an inhibitor isolation wall.

[0061] Furthermore, the recovery assembly 4 includes a connecting frame 401, which is connected to the recovery assembly 4 via a pull rope, which is wound around the active winding wheel 8. A recovery trough 402 is installed on the connecting frame 401 at the position corresponding to the output of the injection assembly 3. A transfer pump 403 is installed on one side of the recovery trough 402, and the transfer pump 403 is connected to the transfer pipe 7. The transfer pump 403 cooperates with the recovery trough 402 to recover and reuse the fallen inhibitor, allowing the inhibitor to be continuously released until the battery cluster with thermal runaway is controlled.

[0062] Furthermore, a heat dissipation channel 908 is provided within the air guide channel 905. An air outlet communicating with the heat dissipation channel 908 is provided at the top of the fire-resistant partition plate 902. A shielding plate 909 is provided on the fire-resistant partition plate 902. An air guide duct 9010 communicating with the heat dissipation channel 908 is provided at the bottom of the movable plate 901. The air guide duct 9010 is connected to a centrifugal fan 9011. Specifically, the centrifugal fan 9011 is a well-known technical device and is available in two types: right-hand and left-hand. A right-hand fan with a clockwise impeller is considered a suction fan, while a left-hand fan with a counterclockwise impeller is considered a delivery fan. The heat generated by the battery box will rise based on the top, so that the air at the top will be higher. At this time, if heat dissipation is not performed, the top of the battery box is prone to thermal runaway. Therefore, the centrifugal fan 9011 cooperates with the air duct 9010 to allow hot air to enter from the air outlet and move along the heat dissipation channel 908 and be discharged, thereby dissipating heat from the top to prevent the top of the battery box from being prone to thermal runaway. A baffle 909 is provided to prevent water spray or inhibitors from entering the heat dissipation channel 908. In the event of thermal runaway, the impeller of the centrifugal fan 9011 rotates counterclockwise to supply air, and cooperates with the air duct 9010 and the heat dissipation channel 908 to output the wind through the air outlet. The blown wind is blocked by the baffle 909 to move horizontally, thereby forming a wind curtain on the top of the battery box.

[0063] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A five-dimensional closed-loop control method for a new energy storage power station, characterized in that: The steps include: A. Monitor the environmental parameters inside the battery box and the voltage, current, and resistance information of each sensor, and obtain data before and after different times through multiple feedback at different times; B. Make intelligent decisions based on monitoring information and historical status information of the battery cluster through multi-parameter coupling analysis; C. If the battery box temperature is higher than 40 degrees Celsius, start the heat exchange component to cool it down; D. If thermal runaway occurs, activate the active cooling component to cool and extinguish the fire; D1: Thermal runaway is about to occur, and the cluster-level cooling solution is activated; D2: In the early stages of thermal runaway, the cabin-level cooling solution is activated, and the power is cut off. The battery box releases the first inhibitor to suppress thermal runaway, and the inhibitor is released around the battery cluster to form a partition wall; D3, during the thermal runaway period, the second inhibitor is released to suppress the thermal runaway; D4: At the initial stage of a fire, the first fire extinguishing agent is released to extinguish the fire. Simultaneously, the audible and visual alarms are activated, the fans are in operation, and a signal is sent to the municipal firefighting facilities. Upon finding that the fire cannot be suppressed, the second fire extinguishing agent is released to extinguish the fire. After the fire is successfully extinguished, a second thermal runaway occurs, and the third fire extinguishing agent is released to extinguish the fire. In step D2, the device for releasing the inhibitor around the battery cluster to form a partition wall includes a dual inhibitor delivery pipe, a movable frame, an injection assembly, and a recovery assembly. The dual inhibitor delivery pipe extends to the top of the battery cluster, the movable frame is movable and placed on the dual inhibitor delivery pipe, and the injection assembly is mounted on the movable frame. The dual inhibitor delivery pipes corresponding to the top of the battery cluster are respectively provided with a first one-way valve connected to the injection assembly. The injection assembly is provided with a second one-way valve connected to the first one-way valve when it is raised and lowered. The recovery assembly is connected to the injection assembly via a delivery pipe, and an active winding wheel that winds around the delivery pipe is mounted on the movable frame. Partition assemblies are movably installed on all four sides of the battery box, and the partition assemblies are located between adjacent battery boxes. The partition assemblies include a movable plate, a fire-resistant partition plate and a horizontal driver. The movable plate is movably installed between adjacent battery boxes, and a slot is provided on the movable plate. The fire-resistant partition plate is inserted into the slot. The horizontal driver is installed underground and is connected to the movable plate drive. An air guide channel is provided in the fire-resistant partition plate, and multiple through holes connected to the air guide channel are evenly opened on both symmetrical sides of the fire-resistant partition plate. A conduction pipe connected to the air guide channel is provided at the bottom of the movable plate, and the conduction pipe is connected to an external fan.

2. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: The environmental parameters in step A include temperature information, gas composition information and pressure information, and the monitoring equipment used includes a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor and an electrolyte leakage monitoring sensor. The temperature sensor, optical smoke sensor, hydrogen gas sensor, carbon monoxide smoke sensor, pressure sensor and electrolyte leakage monitoring sensor are installed inside the battery box.

3. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: In step B, the data integration and transmission are placed in the control system, and the control system's calculations are combined with the fire big data platform to perform data analysis, intelligent early warning and hidden danger inspection, and make intelligent decisions.

4. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: In step C, when the battery temperature is higher than 40 degrees Celsius, liquid cooling is started. A liquid cooling plate is provided on the bottom plate inside the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be maintained below 40 degrees Celsius.

5. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: In step D1, thermal runaway is about to occur, and air cooling and liquid cooling are activated. The air cooling involves fixing a fan behind the battery cluster, using a direct-drive high-power fan group and intelligent electronic control. The liquid cooling involves setting up a liquid circulation cooling channel inside the battery cluster and reducing the temperature of the battery box through a heat exchanger, compressor, and condenser.

6. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: In step D2, in the early stage of thermal runaway, air cooling and water mist cooling are started. The water mist cooling is to set a water mist nozzle on the top of the battery box to release a water mist type water-based fire extinguishing inhibitor through the water mist nozzle.

7. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: The spray assembly includes a fixed frame and four groups of nozzles. The fixed frame is fixedly installed on the movable frame. The four groups of nozzles are respectively installed on the four sides of the fixed frame. The four groups of nozzles are connected to a main pipeline. The main pipeline is connected to the second one-way valve. A lifting cylinder for driving the second one-way valve to rise and fall is installed on the fixed frame.

8. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: The recovery component includes a connecting frame, which is connected to the recovery component through a pull rope, and the pull rope is wound around the active winding wheel. The connecting frame is equipped with a recovery trough at the position corresponding to the output of the injection component. A transmission pump is installed on one side of the recovery trough, and the transmission pump is connected to the transmission pipe.

9. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: A driving wheel is installed on the moving end of the mobile frame. The outer diameter of the driving wheel is provided with a limiting groove that matches the diameter of the inhibitor double delivery pipe. A driving motor for driving the driving wheel to rotate is installed on the mobile frame.

10. A five-dimensional closed-loop control method for a new energy storage power station according to claim 1, characterized in that: A heat dissipation channel is provided in the air guide channel, an air outlet connected to the heat dissipation channel is provided on the top of the fire-resistant partition board, a shielding plate is provided on the fire-resistant partition board, and an air guide pipe connected to the heat dissipation channel is provided on the bottom of the movable plate, and the air guide pipe is connected to a centrifugal fan.

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