Modular intelligent maintenance device and method suitable for energy storage system

Abstract

The invention relates to the technical field of energy storage operation and maintenance, discloses a modular intelligent maintenance device suitable for an energy storage system, and effectively solves the problems that existing energy storage maintenance depends on manpower and lacks intelligent management and reliable interlocking through a multi-module collaborative architecture. The state acquisition module comprehensively acquires multi-source parameters, and combines fusion analysis of the diagnosis analysis module to realize accurate risk pre-judgment and graded early warning, so that the comprehensiveness and timeliness of risk identification are improved. The safety interlocking module executes logic interlocking control based on multiple signals, so that hidden dangers such as wrong operation sequence are avoided, and the maintenance safety is enhanced; the execution control module accurately responds according to the judgment result and the early warning level, and protection measures are guaranteed to fall into the ground. The information recording module realizes data tracing in the whole process of operation and provides support for overall scheduling of the main control module, the multiple modules communicate through a data bus, the structure is modularized to adapt to various energy storage systems, and the operation and maintenance efficiency and reliability are improved.

Description

Technical Field

[0001] This invention belongs to the field of energy storage operation and maintenance technology, specifically a modular intelligent maintenance device and method applicable to energy storage systems. Background Technology

[0002] With the widespread application of large-scale energy storage technology in scenarios such as new energy grid connection, power peak shaving, and emergency backup, the structural complexity and safety risks of energy storage systems have increased significantly. Energy storage devices often operate in high-pressure, high-temperature, and high-energy-density environments. Improper operation during maintenance can easily lead to safety accidents such as arc discharge, coolant leakage, communication anomalies, or thermal runaway. Therefore, safety protection and operational management of energy storage systems during maintenance have become crucial factors restricting their operational efficiency and reliability.

[0003] During the maintenance phase of energy storage equipment, improper operation can easily lead to various safety accidents such as arc discharge and thermal runaway, which directly affect the safety and stability of the operation and maintenance of the energy storage system.

[0004] Current energy storage system maintenance primarily relies on manual power outages, manual inspections, and single protective measures, lacking a unified intelligent management and interlocking control mechanism. Specifically, in scenarios such as energy storage compartment maintenance, the control of key aspects such as electrical isolation, cooling circuits, gas detection, and communication links is performed independently by different devices, failing to form a system-level linkage and coordination. At the same time, traditional maintenance equipment mostly adopts a fixed structural design, failing to consider the differentiated maintenance needs of different energy storage systems, making it difficult to achieve flexible configuration and expansion.

[0005] The current maintenance plan has significant technical defects. The core problem lies in the lack of overall safety and applicability. Specifically, it is characterized by low operational safety, reliance on manual operation which is prone to errors; lack of interlocking mechanism, independent operation of each control link leading to frequent problems such as incorrect operation sequence and delayed signal response, which in turn cause safety hazards such as accidental contact with live wires and abnormal cooling; and poor system adaptability, with the fixed structure unable to adapt to the diverse maintenance needs of different energy storage systems, making it difficult to meet the flexible configuration and expansion requirements of actual operation and maintenance. Summary of the Invention

[0006] This invention provides a modular intelligent maintenance device and method suitable for energy storage systems, which solves the problems of low operational safety, insufficient interlocking mechanism and poor system adaptability.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A modular intelligent maintenance device suitable for energy storage systems includes: Main control module, status acquisition module, diagnostic analysis module, safety interlock module, execution control module, and information recording module; The status acquisition module is used to acquire multi-source parameters of the energy storage system, including electrical parameters, cooling parameters, communication status and environmental status. The diagnostic analysis module performs fusion analysis on the collected multi-source parameters, calculates risk factors, and generates early warning levels. The safety interlock module performs logical interlock control based on electrical isolation signals, cooling status signals, and personnel operation status, and outputs the interlock determination result. The execution control module performs electrical disconnection, cooling start / stop, and alarm response based on the interlock determination result and the early warning level. The information recording module is used to record status data, control commands, and early warning events during the operation process; The main control module communicates with each module via a data bus and executes response strategies.

[0008] Preferably, the status acquisition module includes an electrical detection unit, a cooling monitoring unit, a communication detection unit, and an environmental detection unit; The electrical testing unit is used to detect bus voltage, current, insulation resistance, and isolation status. The cooling monitoring unit is used to monitor the temperature difference, flow rate, and differential pressure change rate of the inlet and outlet liquids in the cooling circuit. The communication detection unit is used to detect the integrity of the communication link and signal delay; The environmental monitoring unit is used to monitor the temperature, humidity, and concentration of combustible gases inside the energy storage chamber.

[0009] Preferably, the diagnostic analysis module calculates risk factors based on a multi-parameter fusion algorithm, and the risk factors are:

[0010] in, The rate of temperature rise inside the energy storage chamber. and The concentration increases of carbon monoxide and hydrogen fluoride are respectively. This represents the change in cooling pressure differential in the cooling circuit. This refers to the bus current fluctuation. to These are the adaptive weighting coefficients for the system. When a risk factor exceeds a preset threshold, a multi-level warning signal is triggered and output to the safety interlock module.

[0011] Preferably, the main control module executes a multi-level response strategy based on risk level and interlock status, including: When the risk level is Level 1, only an audible and visual alarm will be triggered; When the risk level is level two, perform cooling start / stop and electrical disconnection operations; When the risk level is level three, the fire protection unit will be triggered and the maintenance area passage will be blocked.

[0012] Preferably, the safety interlock module employs a multi-signal cross-verification mechanism, including: When the electrical detection unit fails to confirm that the busbar residual voltage has returned to zero, the control module is prohibited from issuing contact operation commands. When the cooling monitoring unit detects that the liquid level is below the safety lower limit, the cooling circulation must not be started. When personnel approach and the signal is triggered, the high-voltage circuit is automatically disconnected and the interlock is released after a delay.

[0013] Preferably, the safety interlock module and the information recording module work together to synchronously generate record entries when the interlock logic is triggered. The records include the triggering reason, response time and execution result, which are used for security event analysis.

[0014] Preferably, the execution control module includes an electrical isolation unit, a cooling start / stop unit, and an alarm response unit; The electrical isolation unit is used to disconnect the high-voltage busbar of the energy storage compartment; The cooling start / stop unit is used to control the start / stop of the cooling pump based on the interlock result; The alarm response unit is used to issue audible and visual alarms or activate fire protection.

[0015] Preferably, the main control module performs module identification and safety initialization operations when the system starts up, automatically loads the corresponding interlock logic and early warning threshold parameters, and realizes adaptive configuration of different energy storage systems.

[0016] Preferably, the information recording module encrypts and stores the status parameters, control commands, and alarm events of each module interaction, and uploads them to the operation and maintenance management system through the communication interface to form a maintenance log.

[0017] A modular intelligent maintenance method for energy storage systems includes: The main control module performs identification and safety initialization operations for each module, automatically loads interlock logic rules and early warning threshold parameters that match the current energy storage system type, and completes adaptive configuration; The status acquisition module collects multi-source parameters of the energy storage system and transmits the collected data to the diagnostic analysis module. The diagnostic analysis module calculates risk factors based on a multi-parameter fusion algorithm, compares the calculated risk factors with preset warning thresholds, generates warning level signals, and feeds the warning level signals back to the main control module. The safety interlock module receives the warning level signal and the original status parameters of each acquisition module, performs interlock logic determination based on the cross-validation mechanism, and outputs the interlock determination result; The execution control module receives the interlock determination result and the warning level instruction, and executes the corresponding response operation; The information recording module synchronously collects multi-source status parameters, control commands issued by the main control module, early warning level information, and execution control results during the operation process, encrypts and stores the above information, and generates record entries synchronously when the safety interlock logic is triggered.

[0018] Compared with existing technologies, this invention has the following advantages: This invention provides a modular intelligent maintenance device suitable for energy storage systems. Through a multi-module collaborative architecture, it effectively solves the problems of existing energy storage maintenance relying on manual labor, lacking intelligent management, and lacking reliable interlocks. The status acquisition module comprehensively collects multi-source parameters, and combined with the fusion analysis of the diagnostic analysis module, it achieves accurate risk prediction and graded early warning, improving the comprehensiveness and timeliness of risk identification. The safety interlock module uses multi-signal execution logic interlock control to eliminate hidden dangers such as incorrect operation sequence, enhancing maintenance safety; the execution control module responds accurately based on the judgment results and early warning levels, ensuring the implementation of protective measures. The information recording module enables full-process data traceability of operations, providing support for the overall scheduling of the main control module. Furthermore, the multiple modules communicate via a data bus, and the modular structure adapts to various energy storage systems, improving operation and maintenance efficiency and reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a modular intelligent maintenance device suitable for energy storage systems according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the system operation process of a modular intelligent maintenance device suitable for energy storage systems according to Embodiment 2 of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example 1 This embodiment provides a modular intelligent maintenance device suitable for energy storage systems. The device focuses on the safe maintenance and status management of the energy storage compartment. It constructs an intelligent maintenance control system through multi-module collaboration to realize the functions of electrical isolation, cooling protection, status detection, fault early warning and operation recording of the energy storage system during maintenance operations.

[0026] like Figure 1 As shown, the device includes: a main control module, a status acquisition module, a diagnostic analysis module, a safety interlock module, an execution control module, and an information recording module.

[0027] The main control module, as the core control unit of the system, is used for centralized management and coordinated control of various modules; the status acquisition module is used to acquire multi-source status parameters of the energy storage system during maintenance; the diagnostic analysis module is used to perform safety judgment and risk identification on the acquired data; the safety interlock module is used to perform logical interlock control for electrical, cooling and personnel safety; the execution control module performs operations such as electrical isolation, cooling start / stop, and alarm response based on the interlock results; and the information recording module is used to store operation logs, status data and event records to achieve traceable management of the entire process.

[0028] In this embodiment, the modules are interconnected via a data bus, forming a closed-loop information control structure. The signal interaction frequency between the main control module and the status acquisition module is 1Hz to 10Hz to ensure real-time status synchronization. The control commands between the safety interlock module and the execution control module adopt a priority response mechanism. When a high-voltage energization, cooling anomaly, or gas leak signal is detected, a high-priority command is immediately triggered to cut off the power supply and stop the operation. The diagnostic analysis module identifies abnormal trends through algorithms and generates early warning level signals, which are then fed back to the main control module to execute the corresponding strategies.

[0029] Through the above modular collaborative design, the device can achieve intelligent control and safety protection of the maintenance process without changing the original electrical structure of the energy storage system, effectively improving operational safety and maintenance efficiency.

[0030] The modular intelligent maintenance device in this embodiment is mainly applied to the maintenance of energy storage systems. It achieves multi-dimensional status perception and safety control by uniformly managing the electrical isolation, cooling safety, environmental conditions, and communication links within the energy storage chamber. The device consists of six core functional modules: a main control module, a status acquisition module, a diagnostic analysis module, a safety interlock module, an execution control module, and an information recording module. These modules communicate via a data bus, forming a closed control loop.

[0031] (I) Main Control Module The main control module is the core control unit of the entire device, used to coordinate the working logic and task scheduling of each module.

[0032] The main control module includes a central processing unit, a communication interface unit, a task management unit, and a display and interaction unit. The central processing unit is responsible for parsing the data frames transmitted by each module and performing real-time data synchronization and safety checks. The communication interface unit provides CAN bus and Ethernet interfaces for data exchange with the energy storage system (BMS), energy management system (EMS), and various internal functional modules. The task management unit loads the corresponding control logic table based on the current operating mode (including inspection mode, maintenance mode, and replacement mode), judges the status signals issued by the safety interlock module, and issues action commands to the execution control module.

[0033] The display and interaction unit is used to visually display maintenance status, equipment alarm information and operation prompts. Operators can confirm tasks and reset status through the touch panel.

[0034] During system startup, the main control module automatically executes a module identification program to identify and register the plugged-in functional modules. Module identification is achieved through built-in coding logic, with each module having a unique identification code. When the identification code does not match or is missing, the main control module prohibits the execution of any control commands to prevent accidental operation.

[0035] (II) Status Acquisition Module The status acquisition module is used to monitor the operating status of the energy storage system and the maintenance environment in real time. This module includes an electrical detection unit, a cooling detection unit, a communication detection unit, and an environmental monitoring unit.

[0036] The electrical detection unit is used to collect information on the bus voltage, isolation status, current changes, and insulation resistance of the energy storage cluster. The sampling frequency is 100 milliseconds, using an isolated measurement method, and the sampling results are uploaded to the main control module for safety analysis.

[0037] The cooling detection unit monitors the temperature, pressure, and flow rate of the cooling circuit. This unit detects changes in the cooling pressure differential using a differential pressure sensor and combines this data with that from a level sensor to determine if a leakage trend is present.

[0038] The communication detection unit is used to monitor the communication link status between the energy storage system and the BMS and EMS. This unit has a communication integrity detection function, which can statistically analyze the CAN frame loss rate and CRC check error rate. When communication instability or link abnormality is detected, the system will automatically trigger an alarm and restrict operation permissions.

[0039] The environmental monitoring unit includes an infrared temperature sensor and a gas concentration sensor, used to monitor the internal temperature distribution, carbon monoxide, and hydrogen fluoride concentrations of the energy storage chamber. When both the rate of temperature rise and the rate of change in gas concentration exceed a set threshold, the status acquisition module generates a "potential thermal runaway signal" and reports it to the main control module.

[0040] (III) Diagnostic Analysis Module The diagnostic analysis module is used to calculate and comprehensively judge the data uploaded by the status acquisition module, so as to realize the safety status analysis and abnormal trend identification of the energy storage system.

[0041] This module includes a data preprocessing unit, a risk assessment unit, and an early warning generation unit.

[0042] The data preprocessing unit performs noise reduction, filtering, and time synchronization on the acquired signals to ensure that all monitoring signals have a unified time scale.

[0043] The risk assessment unit calculates the risk factor (P) of the energy storage system based on a multi-parameter fusion algorithm. The calculation formula is as follows:

[0044] in, The rate of temperature rise inside the energy storage chamber. and The concentration increases of carbon monoxide and hydrogen fluoride are respectively. This represents the change in cooling pressure differential in the cooling circuit. This refers to the bus current fluctuation. to These are the adaptive weighting coefficients for the system.

[0045] When the calculation result When the set threshold is exceeded, the warning generation unit outputs the corresponding warning level signal and feeds it back to the main control module. The warning levels are divided into three levels: Level 1 is an abnormal status reminder, Level 2 is a safety risk warning, and Level 3 is an emergency protection command.

[0046] When the calculation result exceeds the set threshold, the early warning generation unit outputs the corresponding early warning level signal and feeds it back to the main control module. The early warning levels are divided into three levels: Level 1 is an abnormal status reminder, Level 2 is a safety risk warning, and Level 3 is an emergency protection command.

[0047] (iv) Safety interlock module The safety interlock module is used to logically interlock electrical safety, cooling safety, and environmental safety based on signals provided by the main control module and the diagnostic analysis module.

[0048] The interlocking logic is constructed based on a state signal matrix and mainly includes the following decision conditions: 1. When the high-voltage plug-in compartment is detected to be open or the busbar is energized, the interlock module issues an "electrical prohibition signal"; 2. When the cooling interface is not locked, the pressure difference is abnormal, or the liquid level is too low, the interlock module will issue a "cooling prohibition signal"; 3. When the gas concentration or temperature rise rate exceeds the secondary threshold, the interlock module issues an "environmental prohibition signal"; 4. When the operating door is opened or the transport platform is not returned to its position, the interlock module sends a "mechanical prohibition signal".

[0049] The main control module generates a safety status flag based on the signals output by the interlock module. The system is only allowed to execute control commands when all judgment signals indicate a safe state. Otherwise, the interlock module will remain locked and trigger an audible and visual alarm.

[0050] (v) Execution Control Module The execution control module is the execution layer that realizes action output and equipment control. This module receives control commands from the main control module and executes corresponding actions based on feedback signals from the safety interlock module.

[0051] The execution control module includes an electrical control unit, a cooling control unit, and an alarm control unit. The electrical control unit controls the on / off state of the high-voltage relay to achieve safe isolation of the energy storage bus; the cooling control unit controls the start / stop and flow regulation of the cooling pump to maintain suitable temperature conditions; and the alarm control unit, upon receiving an emergency protection command, immediately activates the audible and visual alarm device and triggers the fire-fighting equipment activation signal.

[0052] During execution, the control module monitors the action results in real time through a closed-loop feedback mechanism. Once the action is completed, the module feeds back the execution status to the main control module for recording and confirmation, ensuring the verifiability and safety of the control process.

[0053] (vi) Information Recording Module The information recording module is used to realize the full recording and traceability of the operation process.

[0054] This module includes a data storage unit, a log management unit, and a data transmission unit. The data storage unit is used to save status acquisition data, interlock signal changes, and control command execution records; the log management unit organizes data in a time-series structure to achieve traceability of the entire operation process; the data transmission unit uploads logs to the backend server via encrypted communication for subsequent security auditing and maintenance analysis.

[0055] The information recording module can automatically generate maintenance task reports, which include maintenance time, operator number, number of interlock triggers, distribution of early warning levels, and action response time.

[0056] During device operation, the status acquisition module continuously acquires real-time status data and transmits it to the diagnostic analysis module for safety calculation; the early warning results output by the diagnostic analysis module are simultaneously sent to the main control module and the safety interlock module; the main control module controls the execution control module to take action based on the interlock judgment results; the information recording module records and archives all data throughout the process, forming a closed-loop control logic.

[0057] Through the aforementioned collaborative mechanism, the device enables intelligent protection, automated control, and information management of the energy storage system during maintenance operations, ensuring the safety, reliability, and traceability of the maintenance process.

[0058] In summary, this embodiment constructs an intelligent modular system adaptable to the maintenance needs of different energy storage cabins through the organic collaboration of the main control module, status acquisition module, diagnostic analysis module, safety interlock module, execution control module, and information recording module. The modules communicate and control in a unified manner via a data bus. After receiving multi-source status information, the main control module, based on the risk level output by the diagnostic analysis module and the judgment results of the safety interlock module, authorizes the actions of the execution control module in a tiered manner. This enables full-process control of electrical isolation, cooling protection, risk warning, and emergency response during energy storage system maintenance.

[0059] The device provided in this embodiment does not rely on fixed hardware deployment and can be functionally expanded or logically configured according to different energy storage system structures, exhibiting high modularity and reconfigurability. By introducing a multi-signal interlocking and real-time data fusion judgment mechanism during maintenance operations, the safety level and operational reliability of energy storage system maintenance are significantly improved. Simultaneously, intelligent, standardized, and traceable management of the maintenance process is achieved, making it suitable for safe maintenance and repair applications of centralized, distributed, and mobile energy storage systems.

[0060] Example 2 This embodiment, based on the technology described in Embodiment 1, further illustrates the application method and workflow of the device in the maintenance process of an energy storage system. The device is deployed in the maintenance work area of ​​the energy storage power station site to perform safety detection and linkage control of the high-voltage electrical components, cooling circuits, and communication networks inside the energy storage chamber, realizing full lifecycle management of the maintenance process.

[0061] I. Maintenance Preparation Phase Before the maintenance work begins, the operator connects the device of this invention to the target energy storage chamber. The main control module automatically executes the module identification program to identify the types of currently loaded functional modules and displays the module list and connection status on the touch interface. The system then automatically detects the grounding status. When the detected grounding resistance value is lower than the set threshold, the system confirms that the grounding is qualified and proceeds to the next stage.

[0062] During this phase, the status acquisition module performs preliminary testing of the internal environment of the energy storage chamber, collecting basic data such as bus voltage, cooling pressure, chamber temperature, and gas concentration. The main control module compares the collected data with the preset safety template. After confirming that the environmental conditions meet the maintenance requirements, it initiates the "maintenance mode" and loads the corresponding interlocking logic.

[0063] II. Electrical Isolation and Communication Diagnostic Phase The main control module first issues an "electrical isolation test" command, and the safety interlock module verifies the status signal of the high-voltage plug-in compartment. When the bus energization indicator is zero and the pilot contact is closed, the system determines that the high-voltage isolation is effective and automatically performs an electrical interlock operation to prevent accidental energization during maintenance.

[0064] Subsequently, the communication detection unit initiates a link detection program to test the communication quality between the energy storage system's BMS and EMS. After analyzing the frame loss rate, checksum error rate, and latency indicators of the communication packets, the diagnostic analysis module generates a communication integrity assessment result. When the assessment result is lower than a set risk threshold, the main control module authorizes the next step. If a communication anomaly is detected, the system immediately issues an audible and visual alarm and displays a message on the touchscreen interface stating "Communication loop abnormal, maintenance prohibited," which can only be deactivated after manual verification.

[0065] III. Cooling Maintenance and Environmental Safety Testing Phase After electrical isolation is completed, the system enters the cooling maintenance phase. The main control module sends a "cooling start / stop test" command to the execution control module, and the cooling control unit sequentially performs cooling medium venting, injection, and circulation detection operations according to the set program. The status acquisition module monitors the loop differential pressure, flow rate, and temperature changes in real time, and the diagnostic analysis module determines whether there is a leakage trend based on the differential pressure change curve. If the rate of decrease in differential pressure exceeds the set threshold, the safety interlock module immediately issues a "cooling prohibition signal," simultaneously stopping the cooling pump and locking relevant operating permissions.

[0066] After the cooling system stabilizes, the environmental monitoring unit initiates monitoring of the cabin gas and temperature. The system collects infrared thermal image data and gas concentration data according to a fixed sampling cycle, and calculates the rate of temperature rise and the rate of gas concentration increase. When either parameter exceeds the first-level threshold, the system triggers an early warning; when the rate of temperature rise exceeds 5°C / min and the rate of gas concentration increase exceeds 0.2 ppm / min, the system automatically enters the "second-level protection state," cutting off all power output and activating the emergency ventilation device.

[0067] IV. Operation Interlocking and Execution Control Phase During energy storage module replacement or component maintenance, the safety interlock module continuously monitors the protective door opening / closing signal, the handling platform position signal, and the high-voltage plug-in / plug-out status signal. If any signal fails to meet safety requirements, the main control module will automatically freeze the command channel of the execution control module and display the corresponding interlock reason on the interface.

[0068] Once all signals confirm safety, the execution control module performs actions according to the task instructions, including adjusting the lifting platform, starting and stopping the cooling pump, resetting the audible and visual alarms, and preparing the aerosol fire extinguishing device. After each instruction is executed, the system sends back the execution status and action timestamp to ensure the accuracy and traceability of the instruction execution.

[0069] V. Abnormal Handling and Emergency Response Phase When the diagnostic analysis module determines that a risk factor exceeds the set level-three threshold, the main control module immediately enters "emergency protection mode." In this mode, the system performs the following actions in sequence: 1. Issue a high-priority command to the execution control module to cut off the high-voltage relay and cooling power supply; 2. Activate the audible and visual alarm devices and issue an emergency broadcast to remind workers to evacuate; 3. The thermal insulation protection device automatically deploys to block the path of fire spread; 4. Trigger the aerosol fire suppression system for localized fire suppression; 5. Abnormal events and sensor data are uploaded to the backend server in real time through the information recording module.

[0070] During an emergency response, all low-priority commands in the system are locked until the safety lock is manually released or the system is reassessed as safe.

[0071] VI. Work Record and Task Archiving Stage Upon completion of the maintenance task, the information recording module automatically generates a complete work report. This report includes the operator's identification number, maintenance start and end times, interlock trigger records, early warning level distribution, control action response time, and equipment recovery status. The report file is stored in an encrypted format and uploaded to a cloud data platform for subsequent review and statistical analysis.

[0072] This task archiving mechanism enables full-process data-driven and traceable management of energy storage system maintenance operations, avoiding omissions in manual records or data tampering, and providing a basis for subsequent equipment health assessments and safety audits.

[0073] The modular intelligent maintenance device provided in this embodiment can achieve the following technical effects during the maintenance of energy storage systems: 1. Through multi-module linkage, it achieves full-process safety management from electrical isolation and cooling safety to communication diagnostics; 2. Dynamic safety control of the operating status is achieved through risk factor calculation and interlock determination, which significantly reduces the risk of misoperation during the maintenance of energy storage systems; 3. Digital tracking and security verification of the work process were achieved through log recording and cloud archiving; 4. The modular design enables rapid deployment and adaptive configuration of the device in different energy storage systems, exhibiting good versatility and scalability.

[0074] This embodiment replaces the traditional maintenance process that relies on manual judgment with a systematic control logic, realizing the intelligentization and standardization of the energy storage system maintenance process, and ensuring the safety, controllability, and risk traceability of energy storage equipment during maintenance. The basic principles, main features, and advantages of the present invention have been shown and described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0075] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A modular intelligent maintenance device suitable for energy storage systems, characterized in that, include: Main control module, status acquisition module, diagnostic analysis module, safety interlock module, execution control module, and information recording module; The status acquisition module is used to acquire multi-source parameters of the energy storage system, including electrical parameters, cooling parameters, communication status and environmental status. The diagnostic analysis module performs fusion analysis on the collected multi-source parameters, calculates risk factors, and generates early warning levels. The safety interlock module performs logical interlock control based on electrical isolation signals, cooling status signals, and personnel operation status, and outputs the interlock determination result. The execution control module performs electrical disconnection, cooling start / stop, and alarm response based on the interlock determination result and the early warning level. The information recording module is used to record status data, control commands, and early warning events during the operation process; The main control module communicates with each module via a data bus and executes response strategies.

2. The modular intelligent maintenance device for energy storage systems according to claim 1, characterized in that, The status acquisition module includes an electrical detection unit, a cooling monitoring unit, a communication detection unit, and an environmental detection unit; The electrical testing unit is used to detect bus voltage, current, insulation resistance, and isolation status. The cooling monitoring unit is used to monitor the temperature difference, flow rate, and differential pressure change rate of the inlet and outlet liquids in the cooling circuit. The communication detection unit is used to detect the integrity of the communication link and signal delay; The environmental monitoring unit is used to monitor the temperature, humidity, and concentration of combustible gases inside the energy storage chamber.

3. A modular intelligent maintenance device suitable for energy storage systems according to claim 2, characterized in that, The diagnostic analysis module calculates risk factors based on a multi-parameter fusion algorithm. The risk factors are: in, The rate of temperature rise inside the energy storage chamber. and The concentration increases of carbon monoxide and hydrogen fluoride are respectively. This represents the change in cooling pressure differential in the cooling circuit. This refers to the bus current fluctuation. to These are the adaptive weighting coefficients for the system. When a risk factor exceeds a preset threshold, a multi-level warning signal is triggered and output to the safety interlock module.

4. A modular intelligent maintenance device suitable for energy storage systems according to claim 3, characterized in that, The main control module executes a multi-level response strategy based on risk level and interlock status, including: When the risk level is Level 1, only an audible and visual alarm will be triggered; When the risk level is level two, perform cooling start / stop and electrical disconnection operations; When the risk level is level three, the fire protection unit will be triggered and the maintenance area passage will be blocked.

5. A modular intelligent maintenance device suitable for energy storage systems according to claim 2, characterized in that, The safety interlock module employs a multi-signal cross-verification mechanism, including: When the electrical detection unit fails to confirm that the busbar residual voltage has returned to zero, the control module is prohibited from issuing contact operation commands. When the cooling monitoring unit detects that the liquid level is below the safety lower limit, the cooling circulation must not be started. When personnel approach and the signal is triggered, the high-voltage circuit is automatically disconnected and the interlock is released after a delay.

6. A modular intelligent maintenance device for energy storage systems according to claim 5, characterized in that, The safety interlock module and the information recording module work together to generate a record entry synchronously when the interlock logic is triggered. The record includes the triggering reason, response time and execution result, which is used for security event analysis.

7. A modular intelligent maintenance device for energy storage systems according to claim 1, characterized in that, The execution control module includes an electrical isolation unit, a cooling start / stop unit, and an alarm response unit; The electrical isolation unit is used to disconnect the high-voltage busbar of the energy storage compartment; The cooling start / stop unit is used to control the start / stop of the cooling pump based on the interlock result; The alarm response unit is used to issue audible and visual alarms or activate fire protection.

8. A modular intelligent maintenance device for energy storage systems according to claim 1, characterized in that, The main control module performs module identification and safety initialization operations when the system starts up, automatically loads the corresponding interlock logic and early warning threshold parameters, and realizes adaptive configuration of different energy storage systems.

9. A modular intelligent maintenance device for energy storage systems according to claim 1, characterized in that, The information recording module encrypts and stores the status parameters, control commands, and alarm events of each module interaction, and uploads them to the operation and maintenance management system through the communication interface to form a maintenance log.

10. A modular intelligent maintenance method suitable for energy storage systems, characterized in that, A modular intelligent maintenance method for energy storage systems based on any one of claims 1-9 includes: The main control module performs identification and safety initialization operations for each module, automatically loads interlock logic rules and early warning threshold parameters that match the current energy storage system type, and completes adaptive configuration; The status acquisition module collects multi-source parameters of the energy storage system and transmits the collected data to the diagnostic analysis module. The diagnostic analysis module calculates risk factors based on a multi-parameter fusion algorithm, compares the calculated risk factors with preset warning thresholds, generates warning level signals, and feeds the warning level signals back to the main control module. The safety interlock module receives the warning level signal and the original status parameters of each acquisition module, performs interlock logic determination based on the cross-validation mechanism, and outputs the interlock determination result; The execution control module receives the interlock determination result and the warning level instruction, and executes the corresponding response operation; The information recording module synchronously collects multi-source status parameters, control commands issued by the main control module, early warning level information, and execution control results during the operation process, encrypts and stores the above information, and generates record entries synchronously when the safety interlock logic is triggered.

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