Fault identification method and device for energy storage container and medium

Abstract

The invention discloses a fault identification method and device for an energy storage container and a medium. The method comprises the following steps: acquiring a water immersion signal of a water immersion sensor arranged on the energy storage container; acquiring at least one kind of system environment information in the energy storage container; determining a water immersion fault level corresponding to the water immersion signal based on the water immersion signal and at least one kind of system environment information; and executing a fault processing operation corresponding to the water immersion fault level. According to the method, the problem of false alarm caused by a single water immersion signal is avoided, and meanwhile, the accuracy of water immersion fault processing is improved.

Description

Technical Field

[0001] This application relates to the field of energy storage containers, and in particular to a fault identification method, equipment and medium for energy storage containers. Background Technology

[0002] Energy storage containers are containerized energy storage devices that integrate energy storage battery systems, energy management systems, battery management systems, cooling systems, and other auxiliary equipment. They are widely used in energy storage and power regulation. However, in extreme weather conditions such as floods and heavy rains, energy storage containers may experience serious failures such as insulation damage and short circuits, threatening the safety of equipment and personnel.

[0003] Water immersion sensors are crucial components in energy storage containers used for alarming abnormal faults. While ensuring system safety, false alarms caused by water immersion sensors frequently lead to shutdowns, affecting system stability. Related technologies typically reduce the false alarm rate by decreasing the sensitivity of water immersion sensors under non-extreme weather conditions.

[0004] However, the above methods usually require constant monitoring of weather changes and timely adjustment of the water immersion sensor sensitivity, which is cumbersome and also poses certain safety risks. Summary of the Invention

[0005] This application provides a method, device, and medium for fault identification of an energy storage container. The technical solution is as follows:

[0006] On the one hand, a fault identification method for energy storage containers is provided, characterized in that the method includes:

[0007] Acquire a water immersion signal from a water immersion sensor installed on the energy storage container, the water immersion signal being used to indicate the water accumulation status in the energy storage container;

[0008] Acquire at least one system environment information in the energy storage container, the system environment information being used to indicate the environment in which the energy storage system in the energy storage container is located;

[0009] Based on the water immersion signal and the at least one system environment information, a water immersion fault level corresponding to the water immersion signal is determined, and the water immersion fault level is used to indicate the severity of the current water immersion event of the energy storage container.

[0010] Perform the fault handling operation corresponding to the water immersion fault level.

[0011] On the other hand, a fault identification device for an energy storage container is provided, the device comprising:

[0012] The acquisition module is used to acquire the water immersion signal from the water immersion sensor installed on the energy storage container, and the water immersion signal is used to indicate the water accumulation status in the energy storage container.

[0013] The acquisition module is further configured to acquire at least one system environment information in the energy storage container, the system environment information being used to indicate the environment in which the energy storage system in the energy storage container is located;

[0014] The determination module is used to determine the water immersion fault level corresponding to the water immersion signal based on the water immersion signal and the at least one system environment information, wherein the water immersion fault level is used to indicate the severity of the current water immersion event of the energy storage container;

[0015] The processing module is used to perform fault handling operations corresponding to the water immersion fault level.

[0016] On the other hand, a computer device is provided, the computer device including a processor and a memory, the memory storing at least one instruction, at least one program, code set or instruction set, the at least one instruction, the at least one program, the code set or instruction set being loaded and executed by the processor to implement the fault identification method for energy storage containers as described in any of the above embodiments of this application.

[0017] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction, at least one program, code set, or instruction set is stored in the storage medium, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the fault identification method for energy storage containers as described in any of the embodiments of this application above.

[0018] On the other hand, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the fault identification method for the energy storage container described in any of the above embodiments.

[0019] The technical solution provided in this application includes at least the following beneficial effects:

[0020] When identifying water immersion faults in energy storage containers, the water immersion fault level indicated by the water immersion signal output by the water immersion sensor is determined by combining the water immersion signal output by the water immersion sensor with the system environment information in the energy storage container. Based on the determined water immersion fault level, the corresponding fault handling operation is executed. Thus, when judging water immersion faults by the water immersion signal output by the water immersion sensor, the severity of the water immersion event indicated by the water immersion signal can be classified according to the system environment information in the energy storage container. This allows for appropriate handling operations for water immersion events, avoids false alarms caused by a single water immersion signal, improves the accuracy of water immersion fault handling, and enhances the system stability of the energy storage container. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural block diagram of an energy storage container provided in an exemplary embodiment of this application;

[0023] Figure 2 This is a flowchart illustrating fault identification of an energy storage container provided in an exemplary embodiment of this application;

[0024] Figure 3 This is a flowchart of a fault identification process for an energy storage container provided in an exemplary embodiment of this application;

[0025] Figure 4 This is a flowchart illustrating fault identification of an energy storage container provided in an exemplary embodiment of this application;

[0026] Figure 5 This is a structural block diagram of a fault identification device for an energy storage container provided in an exemplary embodiment of this application;

[0027] Figure 6 This is a structural block diagram of a fault identification device for an energy storage container provided in an exemplary embodiment of this application;

[0028] Figure 7 This is a structural block diagram of a computer device provided in an exemplary embodiment of this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In this application, the terms "first" and "second" are used to distinguish between identical or similar items that have essentially the same function. It should be understood that there is no logical or temporal dependency between "first" and "second", nor is there any limitation on the quantity or execution order.

[0031] First, a brief introduction to the terms used in the embodiments of this application will be given.

[0032] Energy storage containers are integrated energy storage solutions, typically using lithium-ion batteries as the core energy storage unit and equipped with key components such as an Energy Management System (EMS), a Battery Management System (BMS), and a cooling system. They feature thermal insulation, temperature control, wind and sand protection, and corrosion resistance, enabling them to adapt to various complex environments. Energy storage containers are widely used in grid energy storage, renewable energy grid integration, emergency power supplies, and distributed generation to improve grid stability, address intermittent power generation issues, and provide backup power. With continuous technological advancements, particularly the application of liquid cooling technology, energy storage containers have significantly improved in terms of heat dissipation efficiency, energy saving, and energy density. Their intelligent design and modular structure make them more flexible, facilitating installation and maintenance. The energy storage container market is in a phase of rapid development and is expected to experience even greater growth potential in the coming years, becoming a crucial force driving energy transformation.

[0033] Water immersion sensors are devices used to detect water immersion or leakage, widely used in data centers, server rooms, warehouses, basements, and other similar locations. They trigger alarms by detecting the presence of water, helping to prevent water damage. Sensors typically use electrode or capacitive principles; when in contact with water, the circuit is activated and a signal is emitted. Water immersion sensors are characterized by high sensitivity, fast response, and ease of installation. They can be connected to monitoring systems for remote alarm and real-time monitoring. By setting different warning and alarm levels, users can take timely measures to avoid equipment damage and property loss caused by water immersion. Water immersion sensors are an important tool for ensuring the safe operation of critical facilities.

[0034] Figure 1A structural block diagram of an energy storage container provided in an exemplary embodiment of this application is shown. The energy storage container 100 includes: a container body, an energy storage battery 120, an energy management device 130, a battery management device 140, a cooling device 150, and a fault detection device 160.

[0035] The container body provides physical protection for the electronic equipment inside, shielding it from external environmental factors. For example, in outdoor environments, it prevents rain, dust, sand, and other pollutants from entering the container.

[0036] The energy storage battery 120 is the core component of the energy storage container 100. Its main function is to store and release electrical energy to meet the power needs in different scenarios. Optionally, the energy storage battery 120 can be a lithium-ion battery, flow battery, sodium-ion battery, lead-acid battery, etc., and is not limited here.

[0037] The energy management device 130 is used to comprehensively manage and optimize the energy flow, equipment operation, and safety monitoring among the various electronic devices in the energy storage container 110. Optionally, the energy management device 130 is used to perform functions such as charging and discharging control of the energy storage battery 120, power distribution, monitoring of key parameters of the energy storage battery 120 (e.g., voltage, current, state of charge, etc.), safety protection, grid dispatch response, remote monitoring and management, and communication functions, which are not limited here.

[0038] The battery management device 140 is used to manage and monitor the energy storage battery 120 (or energy storage battery pack). Its core function is to ensure the safe and efficient operation of the battery pack and extend the battery's lifespan. Optionally, the battery management device 140 is used to perform battery status monitoring (including voltage monitoring, current monitoring, temperature monitoring, etc.), battery equalization management, overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, state of charge assessment, data storage and management, etc., of the energy storage battery 120, which is not limited here.

[0039] The cooling device 150 is a component that ensures the energy storage battery 120 operates within a safe temperature range. Since the energy storage battery 120 generates heat during charging and discharging, if this heat cannot be dissipated in time, the battery temperature may rise, affecting battery performance, lifespan, and even causing safety issues. Therefore, by installing the cooling device 150 in the energy storage container 110, temperature control and thermal management of the energy storage battery 120 are performed, thereby improving the battery performance and lifespan of the energy storage battery 120, while also providing safety protection. Optionally, the cooling method implemented by the cooling device 150 includes at least one of air cooling, liquid cooling, phase change material cooling, etc., and is not limited thereto.

[0040] The fault detection system 160 is used to check for potential faults in the energy storage container 100 to provide fault warnings and alarms. In this embodiment, the fault detection system 160 is used to perform the following actions: acquiring a water immersion signal from a water immersion sensor installed on the energy storage container 100, the water immersion signal indicating the water accumulation state in the energy storage container; acquiring at least one system environment information in the energy storage container, the system environment information indicating the environment in which the energy storage system is located; determining a water immersion fault level corresponding to the water immersion signal based on the water immersion signal and at least one system environment information, the water immersion fault level indicating the severity of the current water immersion event in the energy storage container; and performing a fault handling operation corresponding to the water immersion fault level.

[0041] In some embodiments, the energy management device 130, battery management device 140, cooling device 150, and fault detection system 160 in the energy storage container 100 are connected via a communication network. Optionally, the communication network can be a wired network or a wireless network, and is not limited thereto.

[0042] Please refer to Figure 2 This document illustrates a flowchart of a fault identification process for an energy storage container according to an embodiment of this application. The method is described by... Figure 1 The fault detection system 160 in the process is executed, and the method may include at least one of the following steps (210-240).

[0043] Step 210: Obtain the water immersion signal from the water immersion sensor installed on the energy storage container.

[0044] To illustrate, the water immersion sensor is a sensor pre-installed inside the energy storage container to detect the presence of water or changes in water level within the container.

[0045] Optionally, the above-mentioned water immersion sensor can be implemented as at least one of resistive water immersion sensor, capacitive water immersion sensor, optical water immersion sensor, float-type water immersion sensor, etc., without limitation.

[0046] The components of a water immersion sensor include sensor elements, signal conversion and processing circuits, output devices, housings, and protective structures.

[0047] The sensor element is used to directly detect the presence of water or changes in water level; the signal conversion and processing circuit is responsible for converting the physical changes detected by the sensor element (such as changes in resistance, capacitance, and light intensity) into electrical signals and processing and amplifying them. The signal conversion and processing circuit usually includes an oscillator, a signal amplifier, a microcontroller, etc.; the output device is used to output the processed signal so that it can be connected to other devices (such as alarms and control systems); the housing and protective structure are usually designed to be sealed to prevent water or dust from entering the interior and affecting the performance of the sensor.

[0048] Optionally, the sensor elements include a water immersion detection rope (or water immersion sensing line, water immersion detection line), conductive electrodes, photosensitive medium, float, mechanical / electrical switch, etc. Different types of water immersion sensors use different sensor elements, which are not limited here.

[0049] Optionally, multiple water immersion sensors are installed inside the energy storage container, with each sensor located in a different part of the container.

[0050] Optionally, a water immersion sensor may be installed at at least one of the following locations: inside the energy storage container, outside the energy storage container, at the bottom of the energy storage container, and at the top of the energy storage container.

[0051] Optionally, the location of the water immersion sensor installed inside the energy storage container corresponds to the container door of the energy storage container, for example, the water immersion sensor is installed around the container door.

[0052] Schematic illustration: The water immersion signal output by the water immersion sensor is used to indicate the water accumulation status in the energy storage container. Optionally, the water immersion signal includes the signal directly output by the sensor element, and / or, an electrical signal converted from the sensor element's output signal.

[0053] In some embodiments, the water immersion signal output by the water immersion sensor corresponds to a signal level, which is used to indicate the strength of the water immersion signal and characterize the fault intensity of the water immersion fault.

[0054] In this embodiment, the signal levels of the water immersion signal output by the water immersion sensor include a first signal level, a second signal level, and a third signal level. The first signal level indicates a potential risk of water accumulation in the energy storage container; the second signal level provides a risk warning; and the third signal level issues a risk alert. That is, the signal strength of the first signal level < the signal strength of the second signal level < the signal strength of the third signal level.

[0055] Step 220: Obtain at least one system environment information in the energy storage container.

[0056] The system environment information is used to indicate the environment in which the energy storage system is located within the energy storage container. Optionally, the system environment information includes at least one of the following:

[0057] 1. In-cabin environmental information

[0058] Internal environmental information refers to comprehensive monitoring information on the power equipment (energy storage batteries, etc.) and environmental parameters inside the energy storage container. In some embodiments, the energy storage container includes a power environment monitoring system, which can detect the internal environmental information of the container.

[0059] Optionally, the environmental information inside the cabin includes power equipment information (including parameters such as voltage, current, and power of the power system to which the energy storage battery belongs), environmental parameter information (including detection results such as temperature, humidity, and smoke information inside the cabin), and security monitoring information (access control status, whether there are people inside the cabin, etc.).

[0060] 2. Liquid cooling system information

[0061] Liquid cooling system information includes various operating parameters, status information, and monitoring data related to the liquid cooling system. For example, an energy storage container is equipped with a liquid cooling system used for thermal management of the energy storage batteries within the container. The aforementioned liquid cooling system information is obtained from monitoring this system.

[0062] Optionally, the liquid cooling system information includes coolant temperature information (outlet water temperature, inlet water temperature), equipment temperature information, coolant flow rate information, coolant pressure information, and liquid level information in the storage tank.

[0063] 3. Door status detection information

[0064] As an illustration, the energy storage container has a corresponding container door, and a detection device is installed to detect the status of the container door. The door status detection information includes at least one of the following: the container door is in an open state, a closed state, or a locked state.

[0065] Step 230: Based on the water immersion signal and at least one system environment information, determine the water immersion fault level corresponding to the water immersion signal.

[0066] The water immersion fault level is used to indicate the severity of a current water immersion event in the energy storage container. In this embodiment, the water immersion fault level includes a Level 1 fault level, a Level 2 fault level, and a Level 3 fault level. The Level 1 fault level is the lowest fault level, the Level 2 fault level is a medium fault level, and the Level 3 fault level is the highest fault level. That is, the risk corresponding to the Level 2 fault level is higher than that corresponding to the Level 1 fault level, and the risk corresponding to the Level 3 fault level is higher than that corresponding to the Level 2 fault level.

[0067] In some embodiments, the cause of the water immersion signal is determined by the water immersion signal and system environment information. Illustratively, based on the water immersion signal and at least one piece of system environment information, the fault type indicated by the water immersion signal is classified to obtain a water immersion fault type, which is used to indicate the cause of the water immersion signal; the water immersion fault level corresponding to the water immersion fault type is then obtained.

[0068] In some embodiments, at least two types of water immersion faults are preset, and the water immersion signal is classified based on the water immersion signal and system environment information to determine the water immersion fault type corresponding to the water immersion signal.

[0069] Optionally, at least two pre-set water immersion fault types include: system condensation type, first drainage fault type, first external water ingress type, second drainage fault type, hatch water ingress type, and second external water ingress type. The system condensation type indicates that the water immersion signal is triggered by condensation in the energy storage container. That is, the system condensation type water immersion signal is triggered by the condensation of water vapor in the air inside the energy storage container, indicating that the water immersion is not caused by external leakage or intrusion, but by changes in the internal environment. The first drainage fault type indicates that the water immersion signal is triggered by a drainage problem in the dehumidification system. That is, the first drainage fault type water immersion signal is triggered by a drainage problem in the dehumidification system, such as leakage or condensate outflow. The first external water ingress type indicates that the water immersion signal is triggered by a localized water ingress caused by changes in the external environment of the energy storage container. The second external water ingress type indicates that the water immersion signal is triggered by changes in the external environment of the energy storage container. The first and second external water ingress types both indicate that the water immersion signal is triggered by external water ingress, with the external water ingress amount indicated by the first type being less than that indicated by the second type. The second external water ingress type indicates that the water immersion signal is triggered by a problem caused by an unclosed container door, meaning that the water immersion signal of the door type is triggered by external water entering the container due to an unclosed energy storage container door. The third drainage fault type indicates that the water immersion signal is triggered by a drainage fault in the liquid cooling system, meaning that the water immersion signal of the second drainage fault type is triggered by a drainage fault in the liquid cooling system, such as a problem caused by coolant leakage due to pipe blockage or drainage pump failure.

[0070] In some embodiments, the system condensation type corresponds to a first-level fault, the first drainage fault type corresponds to a second-level fault, the first external water ingress type corresponds to a second-level fault, the second drainage fault type corresponds to a third-level fault, the hatch water ingress type corresponds to a third-level fault, and the second external water ingress type corresponds to a third-level fault.

[0071] It is worth noting that the above correspondence between drainage fault types and water immersion fault levels is an illustrative example, and other correspondences can also be implemented, which are not limited here.

[0072] Step 240: Perform the fault handling operation corresponding to the water immersion fault level.

[0073] Indicatively, different fault handling operations are provided for different water immersion fault levels. In some embodiments, when the water immersion fault level is Level 1, the dehumidification system is activated to dehumidify, wherein the dehumidification system is used to control the humidity in the energy storage container; when the water immersion fault level is Level 2, the charging and discharging of the energy storage batteries in the energy storage container is stopped; when the water immersion fault level is Level 3, the power supply and / or circuit in the energy storage container is cut off.

[0074] In other words, when the system environment information and water immersion signal indicate that the water immersion fault level is the lowest level (Level 1), the fault is handled by dehumidifying the energy storage container since the potential water immersion risk in the container is low. When the system environment information and water immersion signal indicate that the water immersion fault level is the medium level (Level 2), the fault is handled by stopping the charging and discharging of the energy storage batteries in the container, since the potential water immersion risk in the container may affect the batteries. When the system environment information and water immersion signal indicate that the water immersion fault level is the highest level (Level 2), the fault is handled by cutting off the power supply and / or circuits in the container to avoid damage to the electronic equipment inside, since the potential water immersion risk in the container is high.

[0075] In some embodiments, while handling the fault according to the water immersion fault level, a fault alarm message corresponding to the water immersion fault level is sent to the client, wherein the fault alarm message is used to alert the energy storage container to the water immersion fault.

[0076] Optionally, the above-mentioned fault alarm information includes at least one of the following: water immersion fault level, water immersion fault type, and water immersion fault handling result.

[0077] Please refer to Figure 3The diagram illustrates a flowchart of a fault identification process for an energy storage container provided in an exemplary embodiment of this application. The process includes: 301, setting up a water immersion sensor; 302, acquiring and fusing system environmental data and water immersion signals; 303, analyzing the cause of the water immersion signal and determining the water immersion fault level; and 304, reporting the water immersion fault and performing corresponding fault handling.

[0078] In summary, when identifying water immersion faults in energy storage containers, the water immersion fault level indicated by the water immersion signal is determined by combining the water immersion signal output by the water immersion sensor with the system environment information in the energy storage container. Based on the determined fault level, corresponding fault handling operations are performed. Therefore, when judging water immersion faults using the water immersion signal output by the water immersion sensor, the severity of the water immersion event indicated by the water immersion signal can be classified according to the system environment information in the energy storage container. This allows for appropriate handling operations to be provided for water immersion events, avoiding false alarms caused by a single water immersion signal, improving the accuracy of water immersion fault handling, and enhancing the system stability of the energy storage container.

[0079] In some optional embodiments, different judgment methods are used for different types of water immersion faults. Please refer to [reference needed]. Figure 4 The diagram illustrates a flowchart of fault identification for an energy storage container according to an embodiment of this application. The method may include at least one of the following steps (401-452), wherein steps (401-452) are performed after step 220.

[0080] System condensation type:

[0081] Step 401: Determine the dew point temperature in the energy storage container based on temperature and humidity information.

[0082] Since energy storage containers are enclosed environments, the water immersion signals detected by the water immersion sensors inside the containers may come from condensation caused by changes in internal temperature and humidity. In this case, simply dehumidifying the energy storage container can resolve the risk of water immersion.

[0083] In this embodiment of the application, at least one type of system environmental information includes temperature information and humidity information inside the energy storage container. The temperature information indicates the ambient temperature inside the energy storage container; the humidity information indicates the ambient humidity inside the energy storage container.

[0084] By analyzing the temperature and humidity data inside the energy storage container, the dew point temperature inside the container can be calculated. The dew point temperature is the temperature at which water vapor in the air reaches saturation under a given atmospheric pressure.

[0085] In one example, the dew point temperature T inside the energy storage container is calculated using Formula 1. d .

[0086] Formula 1:

[0087] Where T represents the temperature information inside the energy storage container, and RH represents the humidity information inside the energy storage container.

[0088] In this embodiment, a liquid cooling system is provided in the energy storage container, which is used to achieve thermal management of the energy storage batteries in the energy storage container.

[0089] In some embodiments, at least one system environmental information further includes the system outlet water temperature of the liquid cooling system, wherein the system outlet water temperature of the liquid cooling system is used to indicate the temperature of the coolant flowing out of the cooling system after completing the cooling task of the equipment, and this temperature reflects the state of the coolant after absorbing heat from the equipment. By comparing the system outlet water temperature and dew point temperature of the liquid cooling system, as well as the signal level of the water immersion signal, the water immersion fault type corresponding to the water immersion signal can be determined. Schematic, the dew point temperature in the energy storage container is determined based on temperature and humidity information; a first comparison result between the system outlet water temperature and the dew point temperature is obtained; the signal level of the water immersion signal is obtained, and the signal level of the water immersion signal is used to indicate the severity of water accumulation in the energy storage container; the fault type indicated by the water immersion signal is classified by combining the first comparison result and the signal level to obtain the water immersion fault type corresponding to the water immersion signal.

[0090] Step 402: If the first comparison result between the system outlet water temperature and the dew point temperature indicates that the system outlet water temperature is lower than the dew point temperature, and there are at least two water immersion sensors outputting water immersion signals that belong to the first signal level, then the system condensation type is taken as the water immersion fault type corresponding to the water immersion signal.

[0091] The first signal level is the level at which the water immersion signal indicates a potential risk of water accumulation in the energy storage container; the system condensation type is used to indicate that the water immersion signal is triggered by condensation in the energy storage container. That is, the system condensation type water immersion signal is triggered by water vapor in the air inside the energy storage container condensing into water droplets (condensation), indicating that the water immersion is not caused by external leakage or intrusion, but by changes in the internal environment.

[0092] In this embodiment, when the system outlet temperature of the coolant in the cooling system is lower than the dew point temperature inside the energy storage container, water droplets may condense on the equipment surface or the outer wall of the pipes. That is, the low temperature of the coolant causes the water vapor in the surrounding air to reach a saturated state, thus condensing into water droplets. Since condensation may cause the equipment surface to become damp or even accumulate water, the water immersion sensor will output a water immersion signal.

[0093] In this embodiment of the application, when the internal environment of the energy storage container may have condensation problems caused by the coolant of the cooling system, and at least two water immersion sensors output water immersion signals of the first signal level, that is, when there may be condensation inside the energy storage container, and at least two (or only two) of the multiple water immersion sensors in the energy storage container output water immersion signals of the first signal level, it indicates that there is a risk of water immersion inside the current energy storage container. However, since the water immersion risk indicated by the signal level corresponding to the water immersion signal is small and the area distribution is wide (it can be detected by two or more water immersion sensors), it indicates that the water immersion signal is more likely to be caused by condensation generated in the energy storage container. Therefore, the system condensation type is determined as the water immersion fault type corresponding to the water immersion signal.

[0094] Step 403: Obtain the first-level fault level as the water immersion fault level of the system condensation type.

[0095] Among them, the first-level fault level is the lowest fault level. That is, when the water immersion signal corresponds to the system condensation type of water immersion fault, the current risk of water immersion in the energy storage container is relatively small. The low-level fault level is adopted so as to deal with the fault through the fault handling corresponding to the low-level fault level.

[0096] In some embodiments, when the water immersion failure level is Level 1, a dehumidification system is activated to dehumidify the water, wherein the dehumidification system is used to control the humidity in the energy storage container.

[0097] In some embodiments, when the water immersion fault level is Level 1, the dehumidification system is activated to dehumidify and a fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message includes prompts indicating the Level 1 fault level and / or the system condensation type.

[0098] First type of drainage failure

[0099] Step 411: If at least one system environment information is normal and the water immersion signal output by a single water immersion sensor belongs to the second signal level, the first drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal.

[0100] Among them, the second signal level is the risk warning level for water accumulation in the energy storage container, and the first drainage fault type indicates that the water immersion signal is triggered by a drainage fault in the dehumidification system.

[0101] In some embodiments, a dehumidification system is provided in the energy storage container to control the humidity within the container. If the acquired system environmental information does not match the judgment criteria corresponding to other water immersion fault types, it is determined that at least one system environmental information is normal. That is, in this case, other water immersion fault types (e.g., system condensation) are first ruled out, and only one water immersion sensor outputs a water immersion signal, and this signal belongs to the second signal level, indicating a localized water leakage problem. Therefore, in this case, the cause of the water immersion signal is highly likely to be a drainage fault in the dehumidification system. When a drainage fault in the dehumidification system leads to leakage or condensation, the water immersion sensor outputs a second-level water immersion signal.

[0102] In some embodiments, in order to improve the accuracy of determining the first drainage fault type, when at least one system environment information is normal and the water immersion signal output by the water immersion sensor located in the first range of the dehumidification system belongs to the second signal level, the first drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal.

[0103] Step 412: Obtain the secondary fault level as the water immersion fault level of the first drainage fault type.

[0104] Among them, the second level of fault is a medium level of fault. That is, when the water immersion signal corresponds to the first drainage fault type, the current water immersion risk in the energy storage container is medium. The medium level of fault is adopted to deal with the fault through the corresponding fault handling.

[0105] In some embodiments, when the water immersion fault level is level two, the charging and discharging of the energy storage batteries in the energy storage container is stopped.

[0106] In some embodiments, when the water immersion fault level is a level 2 fault, the charging and discharging of the energy storage battery in the energy storage container is stopped, and a fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message includes prompts indicating the level 2 fault and / or the first drainage fault type.

[0107] First type of external water inlet

[0108] Step 421: If at least one system environment information is normal and the water immersion signal output by a single water immersion sensor belongs to the third signal level, the first external water ingress type is taken as the water immersion fault type corresponding to the water immersion signal.

[0109] The third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the first external water ingress type indicates that the water immersion signal is triggered by a local water ingress problem caused by changes in the external environment of the energy storage container.

[0110] In some embodiments, if the acquired system environment information does not match the judgment conditions corresponding to other water immersion fault types, it is determined that at least one system environment information is normal. That is, in this case, other water immersion fault types (e.g., system condensation type) are first ruled out, and at least one water immersion sensor outputs a water immersion signal, and the water immersion signal belongs to the third signal level, indicating that there is a serious water leakage problem. Therefore, in this case, the cause of the water immersion signal is more likely to be a water ingress problem caused by changes in the external environment, such as water ingress due to gaps in the container door of the energy storage container due to extreme weather, or water ingress due to partial damage to the container body.

[0111] Step 422: Obtain the secondary fault level as the water immersion fault level of the first external water ingress type.

[0112] Among them, the second-level fault level is a medium-level fault level. That is, when the water immersion signal corresponds to the first type of external water ingress, the current water immersion risk in the energy storage container is medium. A medium-level fault level is adopted to deal with the fault through the corresponding fault handling.

[0113] In some embodiments, when the water immersion fault level is level two, the charging and discharging of the energy storage batteries in the energy storage container is stopped.

[0114] In some embodiments, when the water immersion fault level is level two, the charging and discharging of the energy storage battery in the energy storage container is stopped, and a fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message includes prompts indicating the level two fault and / or the first type of external water ingress.

[0115] Second type of drainage failure

[0116] Step 431: Obtain the pressure fluctuation threshold corresponding to the liquid cooling system.

[0117] In this embodiment of the application, a liquid cooling system is provided in the energy storage container. The liquid cooling system is used to realize the thermal management of the energy storage battery in the energy storage container. At least one system environmental information includes the return water pressure fluctuation information of the liquid cooling system.

[0118] The return water pressure fluctuation information refers to the changes in coolant return water pressure during the operation of the liquid cooling system. Causes of coolant return water pressure fluctuations include changes in coolant flow rate, system resistance, coolant leakage, changes in pump operating status, and ambient temperature variations. Coolant return water pressure fluctuations can affect the cooling system's heat dissipation efficiency, equipment safety, and system reliability.

[0119] In this embodiment, the pressure fluctuation threshold corresponding to the liquid cooling system is used to determine whether the coolant return pressure is within the normal fluctuation range. By comparing the difference between the return pressure fluctuation information and the pressure fluctuation threshold of the liquid cooling system, it can be determined whether the coolant return pressure of the liquid cooling system is normal, and thus determine whether the generated water immersion signal may originate from an anomaly in the liquid cooling system. Illustratively, the pressure fluctuation threshold corresponding to the liquid cooling system is obtained; a second comparison result between the return pressure fluctuation information and the pressure fluctuation threshold of the liquid cooling system is obtained; the signal level of the water immersion signal is obtained, and the signal level of the water immersion signal is used to indicate the severity of water accumulation in the energy storage container; the fault type indicated by the water immersion signal is classified by combining the second comparison result and the signal level to obtain the water immersion fault type corresponding to the water immersion signal.

[0120] Step 432: If the second comparison result between the return water pressure fluctuation information and the pressure fluctuation threshold indicates that the return water pressure fluctuation information has reached the pressure fluctuation threshold, and there is a water immersion signal output by at least one water immersion sensor that belongs to the second signal level, then the second drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal.

[0121] The second signal level is the risk warning level for water accumulation in the energy storage container, and the second drainage fault type indicates that the water immersion signal is triggered by a drainage fault in the liquid cooling system.

[0122] In this embodiment of the application, when the difference in coolant return water pressure drop per unit time, as indicated by the return water pressure fluctuation information of the liquid cooling system, is greater than or equal to the pressure fluctuation threshold, it indicates that there is a risk of coolant leakage in the liquid cooling system. If at the same time, the water immersion signal output by the water immersion sensor belongs to the second signal level, that is, the water accumulation in the energy storage container has reached the level that requires warning, the second drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal, indicating that the water immersion signal is triggered by a drainage fault problem in the liquid cooling system.

[0123] Step 433: Obtain the third-level fault level as the water immersion fault level of the second drainage fault type.

[0124] Among them, the third level of fault is the highest level of fault. That is, when the water immersion signal corresponds to the second drainage fault type, the risk of water immersion in the current energy storage container is very high. A higher level of fault is adopted to deal with the problem through the fault handling corresponding to the higher level of fault.

[0125] In some embodiments, in the event of a water immersion fault level of three, the power supply and / or circuitry in the energy storage container are disconnected.

[0126] In some embodiments, when the water immersion fault level is level three, the power supply and / or circuits in the energy storage container are cut off, and a fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message includes a prompt message indicating the level three fault level and / or the second drainage fault type.

[0127] Types of water ingress into hatches

[0128] Step 441: If the hatch status indicates that the container hatch is not closed, and the water immersion signal output by the water immersion sensor corresponding to the container hatch is of the second signal level, the hatch water ingress type shall be regarded as the water immersion fault type corresponding to the water immersion signal.

[0129] The second signal level is the risk warning level for water accumulation in the energy storage container, and the door water ingress type indicator indicates that the water ingress signal is triggered by water ingress caused by the container door not being closed.

[0130] In this embodiment of the application, the energy storage container has a corresponding container door, and at least one system environmental information includes the door status of the container door, and a corresponding water immersion sensor is installed on the container door.

[0131] In some embodiments, at least one water immersion sensor is disposed around the container door, for example, above the container door, below the container door, or on the side of the container door.

[0132] In this embodiment of the application, when the hatch status of the energy storage container indicates that the container hatch is not closed, the current water immersion signal is likely caused by external water entering due to the hatch not being closed. That is, when it is detected that the container hatch of the energy storage container is not closed, and the water immersion signal output by the water immersion sensor corresponding to the container hatch is of the second signal level, the hatch water ingress type is regarded as the water immersion fault type corresponding to the water immersion signal.

[0133] Step 442: Obtain the Level 3 fault level as the water immersion fault level for the type of water ingress into the hatch.

[0134] Among them, Level 3 is the highest level of failure. That is, when the water immersion signal corresponds to the water immersion fault type of the hatch water ingress type, the current risk of water immersion in the energy storage container is very high. A higher level of failure is adopted so as to deal with the problem through the corresponding fault handling.

[0135] In some embodiments, in the event of a water immersion fault level of three, the power supply and / or circuitry in the energy storage container are disconnected.

[0136] In some embodiments, when the water immersion failure level is level three, the power supply and / or circuits in the energy storage container are cut off, and a fault alarm message corresponding to the water immersion failure level is sent to the client. The fault alarm message includes prompts indicating the level three failure level and / or the type of water ingress into the hatch.

[0137] Second type of external water inlet

[0138] Step 451: If at least one system environment information is normal and at least two water immersion sensors output water immersion signals that belong to the third signal level, the second external water ingress type is taken as the water immersion fault type corresponding to the water immersion signal.

[0139] The third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the second external water ingress type indicates that the water immersion signal is triggered by a global water ingress problem caused by changes in the external environment of the energy storage container.

[0140] In some embodiments, if the acquired system environment information does not match the judgment conditions corresponding to other water immersion fault types, it is determined that at least one system environment information is normal. That is, in this case, other water immersion fault types (e.g., system condensation type) are first ruled out, and at least two water immersion sensors output water immersion signals, and the water immersion signals belong to the third signal level, indicating that there are multiple water leakage problems. Therefore, in this case, the cause of the water immersion signal is more likely to be water ingress caused by changes in the external environment, and the current water ingress is multiple, such as water ingress due to gaps in the container door of the energy storage container due to extreme weather, water ingress due to partial damage to the container body, etc.

[0141] Step 452: Obtain the third-level fault level as the water immersion fault level for the second external water ingress type.

[0142] Among them, the third level of fault is the highest level of fault. That is, when the water immersion signal corresponds to the second type of external water ingress, the risk of water immersion in the current energy storage container is very high. A higher level of fault is adopted to deal with the problem through the fault handling corresponding to the higher level of fault.

[0143] In some embodiments, in the event of a water immersion fault level of three, the power supply and / or circuitry in the energy storage container are disconnected.

[0144] In some embodiments, when the water immersion fault level is level three, the power supply and / or circuits in the energy storage container are cut off, and a fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message includes a prompt message indicating the level three fault level and / or the second type of external water ingress.

[0145] In summary, when identifying water immersion faults in energy storage containers, the water immersion fault level indicated by the water immersion signal is determined by combining the water immersion signal output by the water immersion sensor with the system environment information in the energy storage container. Based on the determined fault level, corresponding fault handling operations are performed. Therefore, when judging water immersion faults using the water immersion signal output by the water immersion sensor, the severity of the water immersion event indicated by the water immersion signal can be classified according to the system environment information in the energy storage container. This allows for appropriate handling operations to be provided for water immersion events, avoiding false alarms caused by a single water immersion signal, improving the accuracy of water immersion fault handling, and enhancing the system stability of the energy storage container.

[0146] It should be noted that this application may display prompt interfaces, pop-ups, or output voice prompts before and during the collection of user data. These prompt interfaces, pop-ups, or voice prompts are used to inform the user that their data is being collected. This ensures that the application only begins the steps for collecting user data after receiving confirmation from the user regarding the prompt interface or pop-up; otherwise (i.e., without user confirmation), the steps for collecting user data end, meaning no user data is collected. In other words, all user data collected in this application is collected with the user's consent and authorization, and the collection, use, and processing of related user data must comply with the relevant laws, regulations, and standards of the relevant countries and regions.

[0147] Please refer to Figure 5 The diagram illustrates a structural block diagram of a fault identification device for an energy storage container according to an exemplary embodiment of this application. The device includes the following modules:

[0148] The acquisition module 510 is used to acquire the water immersion signal of the water immersion sensor installed on the energy storage container, and the water immersion signal is used to indicate the water accumulation status in the energy storage container;

[0149] The acquisition module 510 is further configured to acquire at least one system environment information in the energy storage container, the system environment information being used to indicate the environment in which the energy storage system in the energy storage container is located;

[0150] The determination module 520 is used to determine the water immersion fault level corresponding to the water immersion signal based on the water immersion signal and the at least one system environment information, wherein the water immersion fault level is used to indicate the severity of the current water immersion event of the energy storage container;

[0151] Processing module 530 is used to perform fault handling operations corresponding to the water immersion fault level.

[0152] In some alternative embodiments, such as Figure 6 As shown, the determining module 520 further includes:

[0153] The classification unit 521 is used to classify the fault type indicated by the water immersion signal based on the water immersion signal and the at least one system environment information to obtain a water immersion fault type, wherein the water immersion fault type is used to indicate the cause of the water immersion signal.

[0154] The acquisition unit 522 is used to acquire the water immersion fault level corresponding to the water immersion fault type.

[0155] In some optional embodiments, the energy storage container is equipped with a liquid cooling system, which is used to realize thermal management of the energy storage batteries in the energy storage container. The at least one system environmental information includes temperature information, humidity information and system outlet water temperature of the liquid cooling system inside the energy storage container.

[0156] The determining module 520 further includes:

[0157] Determining unit 523 is used to determine the dew point temperature in the energy storage container based on the temperature information and the humidity information;

[0158] The classification unit 521 is also used to obtain a first comparison result between the system outlet water temperature and the dew point temperature;

[0159] The classification unit 521 is also used to obtain the signal level of the water immersion signal, the signal level of the water immersion signal being used to indicate the severity of water accumulation in the energy storage container;

[0160] The classification unit 521 is further configured to classify the fault type indicated by the water immersion signal by combining the first comparison result and the signal level, so as to obtain the water immersion fault type corresponding to the water immersion signal.

[0161] In some optional embodiments, the classification unit 521 is further configured to, when the first comparison result indicates that the system outlet water temperature is lower than the dew point temperature and at least two water immersion sensors output water immersion signals belonging to a first signal level, classify the system condensation type as the water immersion fault type corresponding to the water immersion signal, wherein the first signal level is the level at which the water immersion signal indicates a potential risk of water accumulation in the energy storage container, and the system condensation type is used to indicate that the water immersion signal is triggered by condensation in the energy storage container;

[0162] The acquisition unit 522 is further configured to acquire a first-level fault level as the water immersion fault level of the system condensation type, wherein the first-level fault level is the lowest fault level.

[0163] In some optional embodiments, the energy storage container is provided with a dehumidification system for controlling the humidity in the energy storage container;

[0164] The classification unit 521 is further configured to, when there is no abnormality in the at least one system environment information and the water immersion signal output by a single water immersion sensor belongs to the second signal level, take the first drainage fault type as the water immersion fault type corresponding to the water immersion signal, the second signal level being the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the first drainage fault type indicating that the water immersion signal is triggered by a drainage fault problem in the dehumidification system.

[0165] The acquisition unit 522 is further configured to acquire a secondary fault level as the water immersion fault level of the first drainage fault type, wherein the risk corresponding to the secondary fault level is higher than the risk corresponding to the primary fault level.

[0166] In some optional embodiments, the classification unit 521 is further configured to, when there is no abnormality in the at least one system environment information and the water immersion signal output by a single water immersion sensor belongs to the third signal level, classify the first external water ingress type as the water immersion fault type corresponding to the water immersion signal, wherein the third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the first external water ingress type indicates that the water immersion signal is triggered by a local water ingress problem caused by changes in the external environment of the energy storage container;

[0167] The acquisition unit 522 is further configured to acquire a secondary fault level as the water immersion fault level of the first external water ingress type, wherein the risk corresponding to the secondary fault level is higher than the risk corresponding to the primary fault level.

[0168] In some optional embodiments, the energy storage container is equipped with a liquid cooling system, which is used to realize thermal management of the energy storage battery in the energy storage container, and the at least one system environmental information includes the return water pressure fluctuation information of the liquid cooling system;

[0169] The acquisition unit 522 is also used to acquire the pressure fluctuation threshold corresponding to the liquid cooling system;

[0170] The classification unit 521 is also used to obtain a second comparison result between the return water pressure fluctuation information and the pressure fluctuation threshold of the liquid cooling system;

[0171] The classification unit 521 is also used to obtain the signal level of the water immersion signal, the signal level of the water immersion signal being used to indicate the severity of water accumulation in the energy storage container;

[0172] The classification unit 521 is further configured to classify the fault type indicated by the water immersion signal by combining the second comparison result and the signal level, so as to obtain the water immersion fault type corresponding to the water immersion signal.

[0173] In some optional embodiments, the classification unit 521 is further configured to, when the return water pressure fluctuation information reaches the pressure fluctuation threshold and at least one water immersion sensor outputs a water immersion signal belonging to the second signal level, classify the second drainage fault type as the water immersion fault type corresponding to the water immersion signal, wherein the second signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the second drainage fault type indicates that the water immersion signal is triggered by a drainage fault problem in the liquid cooling system;

[0174] The acquisition unit 522 is further configured to acquire a third-level fault level as the water immersion fault level of the second drainage fault type, wherein the risk corresponding to the third-level fault level is higher than the risk corresponding to the second-level fault level.

[0175] In some optional embodiments, the energy storage container has a corresponding container door, the at least one system environment information includes the door status of the container door, and the container door is equipped with a corresponding water immersion sensor;

[0176] The classification unit 521 is further configured to, when the hatch status indicates that the container hatch is not closed and the water immersion signal output by the water immersion sensor corresponding to the container hatch is at the second signal level, classify the hatch water ingress type as the water immersion fault type corresponding to the water immersion signal, wherein the second signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the hatch water ingress type indicates that the water immersion signal is triggered by the water ingress problem caused by the container hatch not being closed;

[0177] The acquisition unit 522 is also used to acquire a level 3 fault as the water immersion fault level of the hatch water ingress type, wherein the risk corresponding to the level 3 fault is higher than the risk corresponding to the level 2 fault.

[0178] In some optional embodiments, the classification unit 521 is further configured to, when there is no abnormality in the at least one system environment information and the water immersion signals output by at least two water immersion sensors belong to the third signal level, classify the second external water ingress type as the water immersion fault type corresponding to the water immersion signal, wherein the third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container, and the second external water ingress type indicates that the water immersion signal is triggered by a global water ingress problem caused by changes in the external environment of the energy storage container;

[0179] The acquisition unit 522 is further configured to acquire a level 3 fault as the water immersion fault level of the second external water ingress type, wherein the risk corresponding to the level 3 fault is higher than the risk corresponding to the level 2 fault.

[0180] In some optional embodiments, the water immersion failure level includes a first-level failure level, a second-level failure level, and a third-level failure level, wherein the risk corresponding to the second-level failure level is higher than the risk corresponding to the first-level failure level, and the risk corresponding to the third-level failure level is higher than the risk corresponding to the second-level failure level.

[0181] The processing module 530 is also used to activate the dehumidification system to dehumidify when the water immersion fault level is the first-level fault level. The dehumidification system is used to control the humidity in the energy storage container.

[0182] The processing module 530 is also used to stop the charging and discharging of the energy storage battery in the energy storage container when the water immersion fault level is the second-level fault level.

[0183] The processing module 530 is also configured to disconnect the power supply and / or circuit in the energy storage container when the water immersion fault level is the third level fault level.

[0184] In some optional embodiments, the processing module 530 is further configured to send fault alarm information corresponding to the water immersion fault level to the client, the fault alarm information being used to alert the energy storage container to a water immersion fault.

[0185] It should be noted that the fault identification device for the energy storage container provided in the above embodiments is only an example of the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment can be divided into different functional modules to complete all or part of the functions described above. In addition, the fault identification device for the energy storage container provided in the above embodiments and the fault identification method embodiments for the energy storage container belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be repeated here.

[0186] Figure 7 A structural block diagram of a computer device 700 provided in an exemplary embodiment of this application is shown. The computer device 700 is implemented as a fault detection device for executing the fault identification method for an energy storage container provided in an embodiment of this application.

[0187] The computer device 700 may be: a smartphone, tablet computer, Moving Picture Experts Group Audio Layer III (MP3) player, Moving Picture Experts Group Audio Layer IV (MP4) player, laptop computer, or desktop computer. The computer device 700 may also be referred to as user equipment, portable terminal, laptop terminal, desktop terminal, or other names.

[0188] Typically, computer device 700 includes a processor 701 and a memory 702.

[0189] Processor 701 may include one or more processing cores, such as a quad-core processor, an octa-core processor, etc. Processor 701 may be implemented using at least one hardware form selected from Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). Processor 701 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, processor 701 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, processor 701 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0190] The memory 702 may include one or more computer-readable storage media, which may be non-transitory. The memory 702 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 702 are used to store at least one instruction, which is executed by the processor 701 to implement the fault identification method for the energy storage container provided in the method embodiments of this application.

[0191] In illustrative purposes, the computer device 700 also includes other components 703, as will be understood by those skilled in the art. Figure 7 The structure shown does not constitute a limitation on the computer device 700, and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0192] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. This program can be stored in a computer-readable storage medium, which may be a computer-readable storage medium included in the memory described in the above embodiments; or it may be a standalone computer-readable storage medium not assembled into the terminal. The computer-readable storage medium stores at least one instruction, at least one program segment, a code set, or an instruction set. The at least one instruction, the at least one program segment, the code set, or the instruction set is loaded and executed by the processor to implement the fault identification method for the energy storage container described in any of the above embodiments.

[0193] Optionally, the computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), solid-state drives (SSDs), or optical discs, etc. The random access memory may include resistive random access memory (ReRAM) and dynamic random access memory (DRAM). The sequence numbers of the embodiments in this application are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0194] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0195] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fault identification method for an energy storage container, characterized in that, The method includes: Acquire a water immersion signal from a water immersion sensor installed on the energy storage container, the water immersion signal being used to indicate the water accumulation status in the energy storage container; Acquire at least one system environment information in the energy storage container, wherein the system environment information is used to indicate the environment in which the energy storage system in the energy storage container is located; Based on the water immersion signal and the at least one system environment information, a water immersion fault level corresponding to the water immersion signal is determined, and the water immersion fault level is used to indicate the severity of the current water immersion event of the energy storage container. Perform the fault handling operation corresponding to the water immersion fault level.

2. The method according to claim 1, characterized in that, The step of determining the water immersion fault level corresponding to the water immersion signal based on the water immersion signal and the at least one system environment information includes: Based on the water immersion signal and the at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain a water immersion fault type, which is used to indicate the cause of the water immersion signal. Obtain the water immersion fault level corresponding to the water immersion fault type.

3. The method according to claim 2, characterized in that, The energy storage container is equipped with a liquid cooling system, which is used to realize thermal management of the energy storage battery in the energy storage container. The at least one system environmental information includes the temperature information and humidity information inside the energy storage container and the system outlet water temperature of the liquid cooling system. Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: The dew point temperature in the energy storage container is determined based on the temperature information and the humidity information. Obtain the first comparison result between the system outlet water temperature and the dew point temperature; Obtain the signal level of the water immersion signal, which is used to indicate the severity of water accumulation in the energy storage container; The fault type indicated by the water immersion signal is classified by combining the first comparison result and the signal level to obtain the water immersion fault type corresponding to the water immersion signal.

4. The method according to claim 3, characterized in that, The method of classifying the fault type indicated by the water immersion signal by combining the first comparison result and the signal level to obtain the water immersion fault type corresponding to the water immersion signal includes: If the first comparison result indicates that the system outlet water temperature is lower than the dew point temperature, and there are at least two water immersion sensors outputting water immersion signals that belong to the first signal level, the system condensation type is taken as the water immersion fault type corresponding to the water immersion signal. The first signal level is the level at which the water immersion signal indicates that there is a potential risk of water accumulation in the energy storage container. The system condensation type is used to indicate that the water immersion signal is triggered by condensation in the energy storage container. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: The first-level fault level is obtained as the water immersion fault level of the condensation type of the system.

5. The method according to any one of claims 2 to 4, characterized in that, The energy storage container is equipped with a dehumidification system, which is used to control the humidity in the energy storage container. Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: If there is no abnormality in the at least one system environment information and the water immersion signal output by a single water immersion sensor belongs to the second signal level, the first drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal. The second signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container. The first drainage fault type indicates that the water immersion signal is triggered by a drainage fault problem in the dehumidification system. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: The secondary fault level is obtained as the water immersion fault level of the first drainage fault type, and the risk corresponding to the secondary fault level is higher than the risk corresponding to the primary fault level.

6. The method according to any one of claims 2 to 4, characterized in that, Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: If there are no abnormalities in the at least one system environment information, and the water immersion signal output by a single water immersion sensor belongs to the third signal level, the first external water ingress type is taken as the water immersion fault type corresponding to the water immersion signal. The third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container. The first external water ingress type indicates that the water immersion signal is triggered by a local water ingress problem caused by changes in the external environment of the energy storage container. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: The level of failure is determined as the water immersion failure level of the first external water ingress type, and the risk corresponding to the level of failure is higher than that corresponding to the level of failure.

7. The method according to any one of claims 2 to 4, characterized in that, The energy storage container is equipped with a liquid cooling system, which is used to realize thermal management of the energy storage battery in the energy storage container. The at least one system environmental information includes the return water pressure fluctuation information of the liquid cooling system. Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: Obtain the pressure fluctuation threshold corresponding to the liquid cooling system; Obtain a second comparison result between the return water pressure fluctuation information and the pressure fluctuation threshold of the liquid cooling system; Obtain the signal level of the water immersion signal, which is used to indicate the severity of water accumulation in the energy storage container; The fault type indicated by the water immersion signal is classified by combining the second comparison result and the signal level to obtain the water immersion fault type corresponding to the water immersion signal.

8. The method according to claim 7, characterized in that, The second comparison result and the signal level are combined to classify the fault type indicated by the water immersion signal, resulting in a water immersion fault type corresponding to the water immersion signal, including: If the second comparison result indicates that the return water pressure fluctuation information reaches the pressure fluctuation threshold, and there is a water immersion signal output by at least one water immersion sensor that belongs to the second signal level, then the second drainage fault type is taken as the water immersion fault type corresponding to the water immersion signal. The second signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container. The second drainage fault type indicates that the water immersion signal is triggered by a drainage fault problem in the liquid cooling system. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: The third-level fault level is obtained as the water immersion fault level of the second drainage fault type, and the risk corresponding to the third-level fault level is higher than the risk corresponding to the second-level fault level.

9. The method according to any one of claims 2 to 4, characterized in that, The energy storage container has a corresponding container door, and the at least one system environment information includes the door status of the container door, and the container door is equipped with a corresponding water immersion sensor. Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: If the hatch status indicates that the container hatch is not closed, and the water immersion signal output by the water immersion sensor corresponding to the container hatch is of the second signal level, the hatch water ingress type is taken as the water immersion fault type corresponding to the water immersion signal. The second signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container. The hatch water ingress type indicates that the water immersion signal is triggered by water ingress caused by the container hatch not being closed. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: A level 3 fault is obtained as the water immersion fault level for the type of water ingress into the hatch, and the risk corresponding to the level 3 fault is higher than that corresponding to the level 2 fault.

10. The method according to any one of claims 2 to 4, characterized in that, Based on the water immersion signal and at least one system environment information, the fault type indicated by the water immersion signal is classified to obtain water immersion fault types, including: If there is no abnormality in the at least one system environment information and the water immersion signal output by at least two water immersion sensors belongs to the third signal level, the second external water ingress type is taken as the water immersion fault type corresponding to the water immersion signal. The third signal level is the level at which the water immersion signal provides a risk warning for water accumulation in the energy storage container. The second external water ingress type indicates that the water immersion signal is triggered by a global water ingress problem caused by changes in the external environment of the energy storage container. The step of obtaining the water immersion fault level corresponding to the water immersion fault type includes: The third-level fault level is obtained as the water immersion fault level of the second external water ingress type, and the risk corresponding to the third-level fault level is higher than the risk corresponding to the second-level fault level.

11. The method according to any one of claims 2 to 4, characterized in that, The water immersion fault levels include Level 1, Level 2, and Level 3. The risk corresponding to Level 2 fault is higher than that corresponding to Level 1 fault, and the risk corresponding to Level 3 fault is higher than that corresponding to Level 2 fault. The execution of fault handling operations corresponding to the water immersion fault level includes: In the event that the water immersion fault level is the first-level fault level, the dehumidification system is activated to dehumidify the energy storage container. In the event that the water immersion fault level is the second-level fault level, the charging and discharging of the energy storage battery in the energy storage container shall be stopped. In the event that the water immersion fault level is the third level, the power supply and / or circuit in the energy storage container shall be disconnected.

12. The method according to claim 11, characterized in that, The method further includes: A fault alarm message corresponding to the water immersion fault level is sent to the client. The fault alarm message is used to alert the energy storage container to the water immersion fault.

13. A computer device, characterized in that, The computer device includes a processor and a memory, the memory storing at least one program, which is loaded and executed by the processor to implement the fault identification method for the energy storage container as described in any one of claims 1 to 12.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one piece of program code, which is loaded and executed by a processor to implement the fault identification method for energy storage containers as described in any one of claims 1 to 12.

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