Electrochemical energy storage power station

Abstract

The utility model relates to the field of electrochemical energy storage power stations, which comprises a computer monitoring system, an intelligent patrol system and a fire extinguishing system, the energy storage power station adopts a prefabricated cabin type arrangement mode and is provided with a plurality of battery cabins, and each battery cabin is provided with a lithium iron phosphate battery; the fire extinguishing system comprises a heptafluoropropane fire extinguishing system and a prefabricated cabin automatic water spraying fire extinguishing system; the heptafluoropropane fire extinguishing system comprises an energy storage fire extinguishing control host, a gas detection controller and an electromagnetic valve, the gas detection controller sends a signal to the energy storage fire extinguishing control host when judging that a fire occurs through a fire algorithm model, and the energy storage fire extinguishing control host opens the electromagnetic valve through a starting program to release a heptafluoropropane fire extinguishing agent. The heptafluoropropane has the advantages of high reaction speed, high fire extinguishing performance and low manufacturing cost, but has certain hidden dangers on secondary reburning generated by thermal runaway, so that the battery prefabricated cabin adopts the combination of heptafluoropropane fire extinguishing and water fire extinguishing, and can effectively extinguish initial fire and prevent fire reburning.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical energy storage power stations. Background Technology

[0002] Some existing energy storage power stations utilize prefabricated lithium iron phosphate (LFP) batteries, configured with multiple battery compartments. LFP batteries are widely used in energy storage systems due to their advantages of low cost, high safety, and long lifespan; however, they pose a significant risk of thermal runaway. Common safety factors in energy storage power stations include fire, explosion, and poisoning, with fire being the most typical. In recent years, fires at energy storage power stations have occurred frequently, highlighting the serious fire hazard. Therefore, fire prevention measures for the battery compartments of energy storage power stations are a crucial aspect of the entire project.

[0003] With the development of technology, power plants have increasingly higher requirements for unmanned operation, which in turn places higher demands on the level of automation of power plants, especially monitoring and inspection systems. Summary of the Invention

[0004] To address the aforementioned problems, this utility model proposes an electrochemical energy storage power station whose fire-fighting system boasts advantages such as rapid response, high fire-extinguishing performance, economical cost, and effective suppression of initial fires and prevention of reignition. The power station's monitoring and intelligent inspection systems significantly enhance its overall intelligence level.

[0005] An electrochemical energy storage power station is provided, which adopts a prefabricated compartment layout and has multiple battery compartments, each of which is equipped with lithium iron phosphate batteries; the energy storage power station includes a computer monitoring system, an intelligent inspection system and a fire protection system.

[0006] The computer monitoring system is divided into a station control layer and a bay layer, using a dual-star network. It includes an MMS network and a GOOSE control network. The battery management system and power conversion system use dual optical ports to access the MMS and GOOSE networks. The station control layer uses a dual Ethernet network, directly connected to the bay layer network. The station control layer is responsible for data processing, centralized monitoring, and data communication for the energy storage power station. It includes a monitoring host, remote gateway, historical data server, network equipment, and printer. The bay layer includes relay protection devices, automatic safety devices, measurement and control devices, fault recording devices, battery management devices, energy metering devices, and energy storage converters.

[0007] The intelligent inspection system enables centralized collection and intelligent analysis of inspection data for energy storage power stations. It includes front-end equipment, which includes an intelligent inspection host, a hard disk recorder, and a camera.

[0008] The fire protection system includes an in-prefabricated compartment fire protection system, which comprises a heptafluoropropane fire extinguishing system, an automatic water sprinkler fire extinguishing system for the prefabricated compartment, and a fine water mist fire extinguishing system for the battery modules. The heptafluoropropane fire extinguishing system includes an energy storage fire control host, a detection controller, and a solenoid valve. When a fire is detected using a fire algorithm model, the detection controller sends a signal to the energy storage fire control host, which then activates the solenoid valve to release the heptafluoropropane extinguishing agent. The automatic water sprinkler fire extinguishing system for the prefabricated compartment includes an electric valve and a water pump. When a fire is detected using a fire algorithm model, the detection controller sends a signal to the energy storage fire control host, which then activates the electric valve and starts the water pump, continuously spraying water from the top of the battery compartment to extinguish the fire. The energy storage fire control host is linked with the battery management system. When the linkage strategy is activated, the air conditioning is shut off, the fan is started, the energy storage converter circuit breaker is disconnected, and the automatic fire extinguishing system is activated. The fine water mist nozzles of the battery module fine water mist fire extinguishing system are arranged inside the battery modules.

[0009] Preferably, the system also includes an outdoor fire protection system for the energy storage area, an outdoor fire water supply system for the station area, and fire hydrants evenly distributed along the roadside with a spacing not exceeding 60m. An underground fire hydrant with an effective volume of not less than 320m³ is also provided outdoors. 3 The fire water tank and pump room are equipped with fire pumps and pressure stabilizing devices. Normally, the pipeline network is maintained at a set value by the pressure stabilizing device. When the outdoor fire hydrants are opened, the pipeline network pressure drops, and the pressure switch is activated to start the fire pump.

[0010] Preferably, a dedicated fire-fighting room is also provided. The sandbox has a capacity of at least 1 cubic meter and a maximum protection distance of 30 meters. It is also equipped with appropriate auxiliary facilities such as fire shovels, fire axes, fire buckets, fire hoses, water guns, and wrenches.

[0011] Preferably, the battery compartment area is provided with two firewalls in the middle, the firewalls are 15m wide and 4.5m high, and the fire resistance limit is not less than 4 hours.

[0012] Preferably, the heptafluoropropane fire extinguishing system is also equipped with a manual start button or switch.

[0013] Preferably, the heptafluoropropane fire extinguishing system also includes a fire alarm, which is activated simultaneously when the energy storage fire control host starts the fire extinguishing program to remind personnel to handle the situation or evacuate.

[0014] Preferably, the fire extinguishing procedure of the heptafluoropropane fire extinguishing system also includes a delayed start procedure.

[0015] Preferably, the heptafluoropropane fire extinguishing system also includes a fire extinguishing agent detection element. After the fire extinguishing agent is detected, the fire extinguishing agent detection element feeds back a signal to the energy storage fire control host.

[0016] Preferably, the fire extinguisher detection element issues a warning signal to remind personnel to evacuate after detecting the release of extinguishing agent.

[0017] Preferably, the prefabricated cabin automatic water sprinkler fire protection system also includes a fire alarm, which is activated simultaneously when the energy storage fire control host starts the fire extinguishing program to remind personnel to handle the situation or evacuate.

[0018] Preferably, the automatic sprinkler fire suppression system of the prefabricated cabin starts after a 300-second delay upon receiving a signal.

[0019] Preferably, the electric valve and the water pump are equipped with manual switches.

[0020] Preferably, the detection controller is located inside the battery compartment and includes combustible gas detectors and heat and smoke detectors, with no fewer than two of each type.

[0021] Preferably, the intelligent patrol system supports the integration of bullet cameras, dome cameras, high-definition video cameras, infrared thermal imaging cameras, voiceprint monitoring devices, and patrol robots.

[0022] Preferably, the relevant video images and alarm information of the front-end device are uploaded to the intelligent inspection host using the TCP / IP protocol, and can be linked with the area through the intelligent inspection host.

[0023] Compared with existing technologies, the advantages of this utility model are:

[0024] (1) Heptafluoropropane fire extinguishing system has a fast fire extinguishing response, high fire extinguishing performance, good environmental effect, does not damage the protected object, and is safe and convenient.

[0025] (2) The automatic water sprinkler system continuously sprays water from the top to extinguish the fire, quickly cools down the temperature, effectively prevents thermal runaway, and has high technical reliability.

[0026] (3) The advantages and disadvantages of the heptafluoropropane fire extinguishing system and the automatic water sprinkler system complement each other and can effectively extinguish the initial fire and prevent the fire from reigniting.

[0027] (4) Fine water mist can carry away a lot of heat and effectively prevent reignition; it can extinguish the fire within 15 minutes. The module was undamaged in the cold spray test and can continue to be used. It has high heat absorption efficiency, is environmentally friendly and harmless. Most of the mist particles vaporize at high temperature, absorbing a lot of heat in the process and reducing the surrounding temperature.

[0028] (5) The computer monitoring system is fully unattended. The network should have good openness to meet the requirements of connection with other dedicated networks of the power system and capacity expansion. The bay layer network has sufficient transmission rate and extremely high reliability. The bay layer measurement and control unit can achieve direct communication and can still independently complete the local monitoring function of the equipment in its bay in the event of failure of the station control layer and the network. The monitoring system can realize reliable, reasonable and complete monitoring, measurement and control of the energy storage station, and has all remote control functions such as telemetry, remote signaling, remote adjustment and remote control, and has the ability to exchange information with the dispatch communication center.

[0029] (6) The intelligent inspection system supports the access of equipment such as bullet cameras, dome cameras, high-definition video cameras, infrared thermal imaging cameras, voiceprint monitoring devices and inspection robots, realizing centralized collection and intelligent analysis of inspection data of energy storage power stations, and further improving the automation level of power stations.

[0030] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 The working principle diagram of the heptafluoropropane fire extinguishing system in this embodiment of the present invention is shown.

[0033] Figure 2 The diagram illustrates the working principle of the automatic water sprinkler fire suppression system for hollow prefabricated cabins in this embodiment of the present invention.

[0034] Figure 3 A diagram of a computer monitoring system according to an embodiment of the present invention is shown. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] See Figures 1-3 This utility model provides a fire protection system for an electrochemical energy storage power station. The energy storage power station adopts a prefabricated compartment layout and has multiple battery compartments, each containing lithium iron phosphate batteries. The fire protection system includes a heptafluoropropane fire extinguishing system and a prefabricated compartment automatic water sprinkler fire extinguishing system. The heptafluoropropane fire extinguishing system includes an energy storage fire control host, a gas detection controller, and a solenoid valve. When the gas detection controller determines that a fire has occurred based on a fire algorithm model, it sends a signal to the energy storage fire control host. The energy storage fire control host then opens the solenoid valve to release heptafluoropropane extinguishing agent through a startup program. The prefabricated compartment automatic water sprinkler fire extinguishing system includes an electric valve and a water pump. When the detection controller determines that a fire has occurred based on a fire algorithm model, it sends a signal to the energy storage fire control host. The energy storage fire control host then opens the electric valve and starts the water pump through a startup program, continuously spraying water from the top of the battery compartment to extinguish the fire. The energy storage fire control host is linked with the battery management system. When the linkage strategy is activated, the air conditioner is shut down, the fan is started, the energy storage converter circuit breaker is disconnected, and the automatic fire extinguishing system is activated.

[0037] Preferably, the system also includes an outdoor fire protection system for the energy storage area, an outdoor fire water supply system for the station area, and fire hydrants evenly distributed along the roadside with a spacing not exceeding 60m. An underground fire hydrant with an effective volume of not less than 320m³ is also provided outdoors. 3 The fire water tank and pump room are equipped with fire pumps and pressure stabilizing devices. Normally, the pipeline network is maintained at a set value by the pressure stabilizing device. When the outdoor fire hydrants are opened, the pipeline network pressure drops, and the pressure switch is activated to start the fire pump.

[0038] Preferably, a dedicated fire-fighting room is also provided. The sandbox has a capacity of at least 1 cubic meter and a maximum protection distance of 30 meters. It is also equipped with appropriate auxiliary facilities such as fire shovels, fire axes, fire buckets, fire hoses, water guns, and wrenches.

[0039] Preferably, the battery compartment area is provided with two firewalls in the middle, the firewalls are 15m wide and 4.5m high, and the fire resistance limit is not less than 4 hours.

[0040] Preferably, the heptafluoropropane fire extinguishing system is also equipped with a manual start button or switch.

[0041] Preferably, the heptafluoropropane fire extinguishing system also includes a fire alarm, which is activated simultaneously when the energy storage fire control host starts the fire extinguishing program to remind personnel to handle the situation or evacuate.

[0042] Preferably, the fire extinguishing procedure of the heptafluoropropane fire extinguishing system also includes a delayed start procedure.

[0043] Preferably, the heptafluoropropane fire extinguishing system also includes a fire extinguishing agent detection element. After the fire extinguishing agent is detected, the fire extinguishing agent detection element feeds back a signal to the energy storage fire control host.

[0044] Preferably, the fire extinguisher detection element issues a warning signal to remind personnel to evacuate after detecting the release of extinguishing agent.

[0045] Preferably, the prefabricated cabin automatic water sprinkler fire protection system also includes a fire alarm, which is activated simultaneously when the energy storage fire control host starts the fire extinguishing program to remind personnel to handle the situation or evacuate.

[0046] Preferably, the automatic sprinkler fire suppression system of the prefabricated cabin starts after a 300-second delay upon receiving a signal.

[0047] Preferably, the electric valve and the water pump are equipped with manual switches.

[0048] Preferably, the detection controller is located inside the battery compartment and includes combustible gas detectors and heat and smoke detectors, with no fewer than two of each type.

[0049] This utility model also provides an energy storage power station, including: a battery compartment and a fire protection system as described in any embodiment of the electrochemical energy storage power station of this utility model.

[0050] The advantages of heptafluoropropane fire suppression systems include:

[0051] ① It has a fast fire extinguishing response and can effectively extinguish open flames after a lithium battery catches fire.

[0052] ② High fire extinguishing performance: During the fire extinguishing process, heptafluoropropane produces physical and chemical reactions that rapidly reduce the temperature of the protected area and the area around the flames, reduce the oxygen concentration, and remove heat faster than it is generated, thus making the fire extinguishing process highly efficient and fast.

[0053] ③ Good environmental effect: This extinguishing agent does not contain bromine or chlorine, has a zero ozone depletion potential (ODP) value, and has no destructive effect on the atmospheric ozone layer, thus meeting environmental protection requirements.

[0054] ④ Does not damage the protected object: Heptafluoropropane fire extinguishing agent is colorless, odorless, non-conductive, and leaves no residue after extinguishing a fire, so it does not pollute the protected object and will not cause damage to the protected object.

[0055] ⑤Safe and convenient: The extinguishing agent is stored in liquid and released in gaseous form, making it easy to operate. It also has multiple activation modes, including automatic, manual, and mechanical emergency start, with a high safety factor and a safe and reliable system.

[0056] The disadvantages of heptafluoropropane fire suppression systems include:

[0057] The initial fire was extinguished, but the subsequent dispersion and dissipation of gases and the heat generated by the battery cell could cause a second and third thermal runaway, which could very likely reignite.

[0058] Because fire detectors cannot determine the sequence of gas extinguishing and water fire suppression actions, an electrically powered main valve must be installed outside the firebox to automatically open after a fire. The advantages of an automatic water sprinkler system include:

[0059] ① The top continuously sprays water to extinguish the fire, quickly cools down the temperature, and can effectively prevent thermal runaway;

[0060] ② Technical reliability: It can be automatically delayed to start or manually started, which can prevent misoperation and has high reliability;

[0061] ③ Fast response time;

[0062] The disadvantages of automatic water sprinkler systems include:

[0063] ① During thermal runaway, the module has a high protection level, but the high temperature generated inside means that the cooling effect of water spraying on the surface lacks data support.

[0064] ② Costs: The addition of a water spray pump set and fire-fighting pipeline network will increase the area of ​​the pump room and affect the construction cost; however, the cabin only contains pipes, sprinklers and other related components, which will not have a significant impact on the cost of the integrator.

[0065] The prefabricated compartments should be at least 4 meters wide on the short side and 3 meters wide on the long side. For ease of maintenance, both the long and short sides of the battery prefabricated compartments have doors. Based on specifications and the actual engineering conditions, the spacing between the battery prefabricated compartments is considered to be 3 meters. Two firewalls are installed in the middle of the battery compartment area. The firewalls are 15 meters wide and 4.5 meters high, with a fire resistance rating of at least 4 hours.

[0066] The internal layout of the compartment imposes strict requirements on battery fire protection. Battery cabinets are arranged back-to-back, with the smallest isolation unit consisting of nine battery cabinets. Fire-resistant walls are installed between the nine cabinets, as well as between the battery cabinets and the control cabinet and water-cooling unit, with a fire resistance rating of not less than 2 hours. The fire resistance rating of the compartment should not be lower than Class II. The combustion performance rating of the insulation, flooring, and decorative materials inside the compartment is Class A.

[0067] The battery compartment is equipped with combustible gas detectors and heat and smoke detectors, with no fewer than two of each type. The fire subsystem in the battery compartment is linked to the battery BMS system. When the linkage strategy is activated, the air conditioning is shut down, the fans are started, the PCS circuit breaker is tripped, and the automatic fire suppression system is activated.

[0068] This invention uses a combination of heptafluoropropane total flooding gaseous solid fire suppression and water fire suppression, with each battery compartment serving as an independent protected zone.

[0069] The prefabricated cabin is equipped with a depressurization device, located at 2 / 3 of the cabin's height.

[0070] The energy storage power station is equipped with a fire-fighting water supply system, including outdoor fire hydrants, indoor water-based fire suppression systems, and a fire-fighting water tank. Both the fire hydrant pumps and the water-based fire suppression pumps draw water from the tank and then connect to the outdoor ring-shaped fire suppression network in two separate lines, each leading into the battery compartment. Each branch pipe outside the compartment is equipped with a main valve. The outdoor fire hydrants are above-ground type, evenly distributed along the roadside with a spacing not exceeding 60m. The protection radius of each fire hydrant is not greater than 150m.

[0071] Because heptafluoropropane has a rapid reaction, high fire extinguishing performance and economical cost, but poses a certain risk of secondary reignition caused by thermal runaway, the battery prefabrication compartment of this power station adopts a combination of heptafluoropropane fire extinguishing and water fire extinguishing, which can effectively extinguish the initial fire and prevent the fire from reigniting.

[0072] 1. Thermal runaway of lithium batteries is a process that takes a relatively long time. In the early stages of this process, a large amount of carbon monoxide, hydrogen, and alkanes are released. By using a gas detector, faulty batteries can be detected early.

[0073] 2. If thermal runaway has already occurred, it will not stop unless the battery is cooled down. Therefore, a fire extinguishing system is required to extinguish the fire and continuously cool the battery down.

[0074] See Figure 3 The computer monitoring system diagram shows that the station control layer is responsible for data processing, centralized monitoring, and data communication of the energy storage power station, including the monitoring host, remote control gateway, historical data server, network equipment, and printers.

[0075] 1) Monitoring Host / Operator Station: Dual configuration. Responsible for collecting and processing various types of data within the station, enabling operational monitoring and comprehensive information analysis of equipment within the station. The main human-machine interface for station operation monitoring, enabling real-time monitoring and operational control of all primary and secondary equipment and batteries in the station, with functions such as event logging and alarm status display and query, equipment status and parameter query, and operational control.

[0076] 2) I / II Zone Remote Control Gateway: Dual configuration, directly collects data within the station, transmits real-time information to the dispatch (control) center through a dedicated channel, and simultaneously receives operation and control commands from the dispatch (control) center. It adopts a dedicated independent device with a hard drive-free and fanless design.

[0077] 3) Historical data server: dual configuration, used for centralized storage of panoramic data (including batteries) of energy storage power station, and provides data access services for station control layer equipment and applications.

[0078] 4) Front-end server: dual configuration, to complete data acquisition and monitoring data acquisition, system clock and time synchronization functions.

[0079] 5) Power generation planning server: Single configuration, accepts and executes power generation planning instructions.

[0080] 6) PMU Power Angle Vector Measurement Device: Single-unit configuration, which collects electrical quantities such as voltage, current, active power, reactive power, and frequency of the grid-connected line and energy storage circuit.

[0081] 7) Power quality monitoring device: a single set is configured to collect electrical quantities such as voltage, current, active power, reactive power, and frequency of the grid-connected device.

[0082] 8) Time synchronization device: Single set configuration. The clock source should primarily use space-based time synchronization, which should be based on the BeiDou Navigation Satellite System (BDS) and supplemented by the Global Positioning System (GPS) in a one-way manner. The station control layer equipment should use the SNTP method for time synchronization.

[0083] 9) PCS Control System: The PCS control system is directly connected to the control network, and communication is based on...

[0084] The GOOSE protocol of the IEC61850 standard directly samples the grid voltage and frequency without communication, ensuring a millisecond-level response rate.

[0085] The bay layer includes relay protection, automatic safety devices, measurement and control devices, fault recording devices, battery management, power metering devices, energy storage converters, and other equipment. The measurement and control configuration includes integrated protection and measurement and control devices for the 10kV grid-connected lines and 10kV step-up transformers. The power failure alarm signals of the devices are connected to the measurement and control system via hard-wiring.

[0086] Network communication equipment: 1) The station control layer adopts a dual Ethernet network, and the station control layer network and the bay layer network are directly connected. 2) The network should have good openness to meet the requirements of connection with other dedicated networks in the power system and capacity expansion. 3) The bay layer network should have sufficient transmission rate and extremely high reliability. The bay layer monitoring and control unit should be able to achieve direct communication and still independently complete the local monitoring function of the equipment in its bay in the event of failure of the station control layer and the network. 4) The indoor network communication medium uses Category 5e shielded twisted pair cable, and the communication medium leading to the outdoors should use armored optical cable.

[0087] Interfaces and protocols with station equipment: Microcomputer-based relay protection and safety automation devices are connected to the monitoring system via Ethernet ports. AC power supplies, DC power supplies, UPS, etc., within the station are integrated into the monitoring system via the IEC 61850 protocol. Communication between battery management systems and PCS devices uses optical ports with the IEC 61850 protocol. The entire station is equipped with a set of intelligent interface devices; devices that cannot directly use the IEC 61850 protocol, such as fire alarm systems, can be connected to the automation system after protocol conversion via the interface device. Important equipment actions and alarm signals are connected to the measurement and control devices via hard contacts.

[0088] The substation intelligent inspection system includes front-end equipment such as intelligent inspection host, hard disk recorder and cameras. It should support the access of equipment such as bullet cameras, dome cameras, high-definition video cameras, infrared thermal imaging cameras, voiceprint monitoring devices and inspection robots to realize centralized collection and intelligent analysis of energy storage power station inspection data.

[0089] The relevant video images and alarm information from the front-end equipment are uploaded to the intelligent inspection host via TCP / IP protocol, and can be linked with security zones I and II through the intelligent inspection host.

[0090] The camera configuration scheme for the station's intelligent patrol system is detailed in the table below:

[0091] Serial Number Installation location Configuration 1 Secondary equipment room Configure 3 dome cameras 2 Battery compartment Configure 2 explosion-proof dome cameras 3 panoramic camera Configure 1 unit 4 Perimeter One infrared high-definition dome camera is installed at each corner of the perimeter wall, for a total of four cameras. 5 Fire pump room Configure 1 dome camera 6 Tool room, archives, guard room Configure 3 dome cameras 7 Substation gate One infrared bullet camera is installed outside the main gate, and one fixed camera is installed at the main gate entrance. 8 field area A total of 9 dome cameras 9 PCS All-in-One PC Two PCS all-in-one machines, 32 in total. 10 Battery compartment Two per cabin, 32 in total

[0092] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrochemical energy storage power station, characterized in that: The energy storage power station adopts a prefabricated modular layout and has multiple battery compartments, each containing lithium iron phosphate batteries. The energy storage power station includes a computer monitoring system, an intelligent inspection system, and a fire protection system. The computer monitoring system is divided into a station control layer and a bay layer, both using a dual-star network. It includes an MMS network and a GOOSE control network. The battery management system and power conversion system use dual optical ports to access the MMS and GOOSE networks. The station control layer is responsible for data processing, centralized monitoring, and data communication for the energy storage power station. The station control layer includes a monitoring host, a remote control gateway, a historical data server, network equipment, and a printer. The bay layer includes relay protection devices, automatic safety devices, measurement and control devices, fault recording devices, battery management devices, energy metering devices, and energy storage converters. The intelligent inspection system realizes centralized collection and intelligent analysis of inspection data of energy storage power stations, including front-end equipment, which includes an intelligent inspection host, a hard disk recorder and a camera. The fire protection system includes a prefabricated compartment fire protection system, which comprises a heptafluoropropane fire extinguishing system, a prefabricated compartment automatic water sprinkler fire extinguishing system, and a battery module fine water mist fire extinguishing system. The heptafluoropropane fire extinguishing system includes an energy storage fire control host, a detection controller, and a solenoid valve. When the detection controller determines that a fire has occurred based on a fire algorithm model, it sends a signal to the energy storage fire control host. The energy storage fire control host then opens the solenoid valve to release the heptafluoropropane extinguishing agent through a startup program. The prefabricated compartment automatic water sprinkler fire extinguishing system includes an electric valve and a water pump. When the detection controller determines that a fire has occurred based on a fire algorithm model, it sends a signal to the energy storage fire control host. The energy storage fire control host then opens the electric valve and starts the water pump through a startup program, continuously spraying water from the top of the battery compartment to extinguish the fire. The energy storage fire control host is linked with the battery management system. When the linkage strategy is activated, the air conditioner is turned off, the fan is started, the energy storage converter circuit breaker is disconnected, and the automatic fire extinguishing system is activated. The fine water mist nozzles of the battery module fine water mist fire extinguishing system are arranged inside the battery module.

2. The electrochemical energy storage power station according to claim 1, characterized in that, It also includes an outdoor fire protection system for the energy storage area, which includes an outdoor fire water supply system. Fire hydrants are evenly distributed along the roadside with a spacing of no more than 60m, and a buried fire hydrant with an effective volume of no less than 320m³ is installed outdoors. 3 The fire water tank and pump room are equipped with fire pumps and pressure stabilizing devices. Normally, the pipeline network is maintained at the set value by the pressure stabilizing device. When the outdoor fire hydrant is opened, the pipeline network pressure drops, and the pressure switch is activated to start the fire pump.

3. The electrochemical energy storage power station according to claim 2, characterized in that, The outdoor fire protection system of the energy storage area also includes a dedicated fire compartment, in which the sandbox has a capacity of not less than 1 cubic meter and a maximum protection distance of 30 meters. The fire compartment is also equipped with auxiliary facilities, including fire shovels, fire axes, fire buckets, fire hoses, water guns and wrenches.

4. The electrochemical energy storage power station according to claim 1, characterized in that, The battery compartment area is equipped with two firewalls in the middle. The firewalls are 15m wide and 4.5m high, and have a fire resistance rating of not less than 4 hours.

5. The electrochemical energy storage power station according to claim 1, characterized in that, The heptafluoropropane fire extinguishing system is also equipped with a manual start button or switch.

6. The electrochemical energy storage power station according to claim 1, characterized in that, The heptafluoropropane fire extinguishing system also includes a fire alarm. When the energy storage fire control host starts the fire extinguishing program, the fire alarm is activated at the same time to remind personnel to handle the situation or evacuate.

7. The electrochemical energy storage power station according to claim 1, characterized in that, The fire extinguishing procedure of the heptafluoropropane fire extinguishing system also includes a delayed start procedure.

8. The electrochemical energy storage power station according to claim 1, characterized in that, The heptafluoropropane fire extinguishing system also includes a fire extinguishing agent detection element. After detecting the release of the fire extinguishing agent, the fire extinguishing agent detection element feeds back a signal to the energy storage fire control host.

9. The electrochemical energy storage power station according to claim 8, characterized in that, After the fire extinguishing agent detection element detects the release of the fire extinguishing agent, it issues a warning signal to remind personnel to evacuate.

10. The electrochemical energy storage power station according to claim 1, characterized in that, The relevant video images and alarm information of the front-end device are uploaded to the intelligent inspection host via TCP / IP protocol, and the intelligent inspection host enables linkage with the area.

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