Multi-dimensional self-adaptive intelligent operation and maintenance system for circuit breaker of railway traction substation

Abstract

The invention relates to the field of operation and maintenance of railway traction substation circuit breakers, and discloses a multi-dimensional self-adaptive intelligent operation and maintenance system and method. The system comprises a circuit breaker multi-dimensional database and an intelligent operation and maintenance terminal. The database integrates data in multiple aspects, for example, a service large database covers information of the whole process from design to operation, a real-time monitoring database obtains working states from multiple systems and dynamically monitors the working states, and a database related to operation safety and emergency disposal is further included. The terminal realizes multiple functions by means of mass data, including accurate fault diagnosis and early warning, comprehensive health assessment, reliability and risk analysis, residual life prediction, scientific maintenance strategy formulation, operation risk assessment, fault self-inspection and reconstruction self-healing and emergency disposal assistance. The application method runs through all links from data acquisition to emergency disposal, and realizes full-life-cycle intelligent operation and maintenance. The intelligent level of operation and maintenance is improved, railway power supply safety is guaranteed, and wide applicability and popularization value are achieved.

Description

Technical Field

[0001] The present invention belongs to the field of intelligent monitoring and operation and maintenance of railway traction substation circuit breakers, and in particular to a system for performing multi-dimensional adaptive diagnosis and analysis of railway traction substation circuit breakers, and providing maintenance strategy references and assisting in full-process emergency disposal. Background Art

[0002] The traction substation is a core component of the traction power supply system of the electrified railway. The reliability and stability of its operation will directly affect the safety and efficiency of railway driving. For most railway traction substations, their feeder system has no redundant settings, and frequent power outages and switching operations will greatly affect the safety and reliability of the circuit breaker. After the traction substations are managed "unmanned", some of the substations are located in remote areas, and there is no backup circuit breaker when the feeder circuit breaker fails. The emergency dispatch time of personnel is relatively long, which seriously affects the safe operation of trains.

[0003] With the development of information technology and artificial intelligence technology, intelligent high-voltage equipment that integrates equipment body, sensors and intelligent components has been gradually applied to realize digital measurement, network control, status evaluation and information interaction functions. However, it is currently only promoted and applied in speeds of 350km / h, and has not yet been promoted and applied to new lines and existing lines with speeds of 250km / h and below. In addition, the correlation between various data in the existing application monitoring systems is low, and there is no systematic and comprehensive management of circuit breaker operation and maintenance in terms of deep data mining for comprehensive analysis, maintenance strategy guidance, and emergency response assistance, resulting in low utilization of a large amount of monitoring data, making it difficult to scientifically grasp the operating laws of circuit breakers, resulting in the accumulation of equipment safety hazards and posing risks to railway power supply safety. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to overcome the deficiencies in the prior art and provide a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers and a method for using the system.

[0007] The present invention aims to provide a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers. The system realizes intelligent operation and maintenance management with the help of multi-dimensional and adaptive diagnostic and analysis functions based on the real-time and dynamic acquisition of massive data from a large service database, an online monitoring database, an operation safety risk database and an emergency disposal management database.

[0008] Preferably, the system of the present invention efficiently integrates information of circuit breakers in seven fields (integrated automation system, railway power supply telecontrol (SCADA) system, auxiliary monitoring system, power supply dispatching system, emergency dispatching command and management system, power supply information integrated management system, railway material management information system), and is a system based on equipment online monitoring, dynamic evaluation, diagnosis and early warning, emergency maintenance decision-making and emergency disposal. The integrated multi-dimensional adaptive intelligent operation and maintenance system terminal realizes functions such as fault diagnosis, early warning, reliability analysis, life prediction, health management, maintenance strategy formulation and emergency disposal through intelligent analysis of massive data.

[0009] Preferably, the present invention comprehensively collects circuit breaker design data, including technical specifications, design changes, etc., and the construction handover acceptance data covers early intervention, completion acceptance, handover test report, completion drawings, engineering construction records, and product supply contracts, etc. It also includes relevant technical standards, regulations, systems, technical specifications, operation instructions, and related operation, maintenance, and repair technical data for circuit breakers. Record in detail the basic information such as model specifications, factory date, manufacturer, inventory status (quantity, storage location), upgrade status, and warranty period of circuit breakers and related accessories. Obtain drawings and materials such as primary wiring diagrams, secondary wiring expansion diagrams, protection device schematics, equipment installation diagrams, cable lists, equipment resumes, "one machine one file" and other technical ledgers from the power supply information comprehensive management system, operation logs, equipment defect records, circuit breaker tripping records, equipment inspection records, switching operation command records, operation command records, and other operation records, as well as equipment status evaluation and maintenance records, electrical equipment test reports and other maintenance test records. Obtain relevant material information such as material transfer, supplier management, product quality notification, material demand planning, warehouse management, and acceptance management from the railway material management information system. By integrating these multi-source information, a complete circuit breaker service database covering all power supply stations, power supply systems throughout the railway, and manufacturers is gradually built, providing a comprehensive and in-depth data foundation for subsequent analysis and decision-making.

[0010] Preferably, the present invention obtains information recorded by the feeder protection measurement and control device and the fault recording device from the integrated automation system of the traction substation, and has relevant data such as three-stage distance protection, current quick-break protection, low-voltage start-up overcurrent protection, current increment protection, pressure loss protection, circuit breaker failure protection, PT line break detection, standby automatic switching, and pressure reclosing. The circuit breaker action process is recorded throughout, and the fault current value of the circuit breaker is obtained from it. The railway power supply telecontrol (SCADA) system (bureau-level terminal, section-level terminal) collects data on the analog quantity, digital quantity, state quantity, fault report, etc. of the circuit breaker, and has remote control (remote opening and closing), remote signaling (working status signal of the switch operating mechanism), telemetry (busbar and feeder voltage, feeder current) and remote viewing functions. The auxiliary monitoring system provides video monitoring and inspection information, such as infrared thermal imaging, opening and closing sign information, energy storage status, number of actions, remote / local operation indication signals, etc., as well as safety precautions information, fire alarm information, and environmental monitoring information. In order to more accurately grasp the operating status of the circuit breaker, the newly added circuit breaker online monitoring system realizes signal early warning for high-frequency defects and conducts full-point monitoring and analysis of potential hidden dangers, including mechanical action characteristic monitoring (opening and closing coil current waveform, opening and closing coil resistance, opening and closing time, mechanical structure tripping, offset, energy storage motor monitoring), routine test item monitoring (loop resistance, insulation resistance, vacuum degree, etc.), life monitoring (arc extinguishing chamber electrical life monitoring, contact wear monitoring), and real-time online monitoring of the opening and closing control circuit break signal and AC and DC power supply loss alarm signal. It can also adjust the online monitoring parameters in time and increase or decrease the online monitoring frequency in time according to the real-time dynamic information analyzed from the circuit breaker service database to realize intelligent and dynamic monitoring.

[0011] Preferably, the risk library of the circuit breaker is recorded in detail, covering all possible risk factors and risk levels, and the hidden danger library clearly states the potential safety hazards. It also includes the maintenance work plan, which clarifies the maintenance schedule, maintenance content and objectives; standardized work tickets, which regulate the maintenance work process and operation requirements; switching operation cards, which guide the switching operation steps; and safety card control measures, which formulate detailed prevention and control measures for possible risks to ensure the safety and reliability of the operation process.

[0012] Preferably, various emergency cases, emergency resource information, emergency personnel information, etc. in the emergency response database are obtained from the emergency dispatch command and management system, and the optimal planning of emergency routes is realized according to the emergency response process. Through information statistical analysis, one-stop assistance is provided for dispatch command, and integrated management of emergency resources is realized, and emergency response reports are intelligently generated. The self-healing type and technical solution after the circuit breaker failure is obtained from the power supply dispatch system, so that effective power supply restoration measures can be taken quickly when a failure occurs to reduce the impact on railway operations.

[0013] Preferably, the present invention also provides a function realization mechanism of an adaptive intelligent operation and maintenance system of a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker: Fault diagnosis function We conduct in-depth research on various fault modes of circuit breakers, establish comprehensive and detailed models of various fault states, and embed them into the core algorithm of the diagnostic analysis system. When the system receives protection action information and online monitoring data, it quickly starts the fault diagnosis program. Through the precise analysis of the protection action logic, combined with the real-time feature analysis of online monitoring data, and the use of advanced technical means such as pattern matching and logical reasoning, we can accurately judge the fault type (such as short circuit fault, overload fault, ground fault, etc.), fault component (determine whether it is a specific component failure such as the contact, coil, insulation component, etc. inside the circuit breaker) and fault location (accurate to a certain part or area of ​​the circuit breaker), thereby realizing efficient and accurate fault diagnosis function and providing key basis for subsequent maintenance decisions.

[0014] Fault warning function Continuously collect and integrate online monitoring data of circuit breakers (such as temperature rise data, insulation resistance value, loop resistance value, opening and closing time, etc.) and historical test data to build a dynamic equipment status monitoring model. Use data mining, trend analysis and other technologies to deeply analyze the trend of equipment status changes. By setting reasonable thresholds and early warning indicators, when abnormal data fluctuations or trends deviate from the normal range are found, fault warnings are issued in a timely manner. Early warning information not only indicates potential fault risks, but also provides estimates of the possible direction and severity of the fault, so that operation and maintenance personnel can take targeted measures in advance to effectively prevent faults or reduce the scope of fault impact.

[0015] Comprehensive health assessment function Based on multi-source historical data such as online monitoring, equipment failure and emergency response information, and test and maintenance records, a comprehensive health assessment model is constructed. This model comprehensively considers indicators of multiple dimensions such as the electrical performance, mechanical performance, and operational stability of the equipment, and uses evaluation methods such as fuzzy comprehensive evaluation and hierarchical analysis to conduct a comprehensive and objective assessment of the health status of the circuit breaker. At the same time, through trend analysis of historical data, the development and change trend of the health status is predicted, providing a scientific basis for the formulation of preventive maintenance and maintenance plans for the equipment, ensuring that the equipment is always in good operating condition.

[0016] Reliability and risk analysis functions In-depth processing and integration of equipment operation data, including operating time, number of operations, ambient temperature, humidity and other operating parameters. Comprehensive consideration of equipment performance degradation rules (such as contact wear leading to increased contact resistance, aging of insulation materials leading to reduced insulation performance, etc.), service environment factors (such as the impact of high temperature, high humidity, strong electromagnetic interference, etc. on equipment) and the impact of human maintenance activities (maintenance quality, timeliness of maintenance, etc.). Use reliability theory (such as Markov model, fault tree analysis, etc.) to quantitatively analyze the reliability of circuit breakers, identify and evaluate risk factors that may affect the normal operation of equipment, determine risk levels, and provide strong support for operation and maintenance strategy adjustments and risk prevention and control.

[0017] Remaining life prediction function Based on the circuit breaker's service conditions (including operating years, cumulative number of operations, fault history, etc.) and various parameter indicators (such as electrical performance parameters, mechanical performance parameters, etc.), a remaining life prediction model is constructed. This model combines the aging law of the equipment, the performance degradation trend, and the impact of the operating environment, and uses data-driven methods (such as neural networks, support vector machines, etc.) or physical model-based methods to accurately predict the remaining life of the equipment. The prediction results provide a key reference for decisions such as equipment overhaul, renovation, etc., and achieve optimal configuration and rational use of equipment resources.

[0018] Maintenance strategy formulation function Based on the comprehensive equipment status information provided by the above five functions, we closely combine the inspection and maintenance system and the current health status of the equipment, use optimization algorithms and decision-making theories to formulate personalized and refined maintenance strategies. Determine the optimal maintenance method (such as preventive maintenance, corrective maintenance, condition maintenance, etc.), reasonable maintenance cycle (dynamically adjust maintenance intervals according to equipment status) and scientific cost management plan (minimize maintenance costs while ensuring equipment reliability). At the same time, according to the equipment operation status and maintenance feedback, continuously optimize the maintenance plan to improve the maintenance management level and equipment operation efficiency.

[0019] Operational risk assessment function Comprehensively analyze the possible risks of on-site operations during the switching and maintenance of circuit breakers. Comprehensively consider the operating environment (such as high-altitude operations, narrow space operations, etc.), operating procedures (operation sequence, operating difficulty, etc.), personnel skill level, equipment status and other factors, and use risk matrix, job safety analysis (JSA) and other methods to quantitatively evaluate the operating risks. According to the evaluation results, formulate detailed and specific safety card control measures, and refine them to each operation step of the work ticket and the "four meetings" (pre-operation anticipation meeting, pre-operation preparation meeting, post-operation summary meeting, and closing meeting) system to ensure that the operation process is safe and controllable.

[0020] Fault self-detection and reconstruction self-healing function When a circuit breaker fails, the internal fault self-checking program is automatically started first. This program attempts to identify and eliminate the fault by itself through self-checking of key components and systems (such as checking the integrity of the control loop, checking whether the sensor signal is normal, etc.). If the fault cannot be restored to normal operation after self-checking, a high-speed data connection is immediately established with the emergency dispatch command and management system to transmit the fault information to the system in real time. The emergency dispatch command and management system conducts a rapid and comprehensive assessment of the on-site fault emergency response conditions based on the preset emergency response rules and the actual on-site conditions (such as staffing, tool and material availability, traffic conditions, etc.). If the conditions for emergency dispatch are met, the on-site commander will quickly organize the emergency response forces to rush to the scene and troubleshoot the fault according to the predetermined emergency response process; if the on-site emergency response conditions are not met, the reconstruction self-healing function will be automatically started. According to the fault type and system configuration, the standby circuit breaker will be put into operation or the "one belt two" and roundabout power supply methods and other emergency power supply solutions will be started to ensure that power supply is restored as soon as possible and reduce the impact on railway transportation.

[0021] Emergency response assistance function After a circuit breaker failure occurs, the system quickly calls up the fault case library, equipment topology information and other data in the emergency response database, and quickly locates the fault (determines the specific location of the fault) and characterizes the fault (determines the nature and cause of the fault) through intelligent matching and analysis algorithms, providing accurate information support for efficient emergency response. During the emergency response process, emergency resources (such as manpower, material resources, and financial resources) are managed in real time and dynamically to ensure the rational allocation and efficient use of resources. Through real-time communication and data interaction with on-site emergency response personnel, the emergency response process is followed up throughout and emergency strategies are adjusted in a timely manner. At the same time, the equipment historical information in the circuit breaker service big data, the experience in handling similar faults, and the real-time data generated during the on-site emergency response process are used to intelligently generate detailed and accurate emergency response reports, providing valuable information for subsequent accident analysis and emergency management improvements.

[0022] The present invention also provides a method for using a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker, which comprises the following steps: S100, data collection and initialization: After the system is started, data is first collected from various data sources to build and improve the circuit breaker multidimensional database. Relevant information of the circuit breaker service database is obtained from the design department, construction unit, operation management organization and manufacturer; real-time monitoring data is collected from the integrated automation system, railway power supply telecontrol (SCADA) system, auxiliary monitoring system and online monitoring system; operation safety risk database information is obtained from the internal management system; emergency disposal management database data is obtained from the emergency dispatch command management system and power supply dispatch system. During the data collection process, data cleaning and format conversion are performed to ensure the accuracy and consistency of the data and complete the system initialization.

[0023] S200, real-time monitoring and data analysis: continuously obtain the latest working status information of the circuit breaker from the real-time monitoring database, and regularly update the relevant information in the service database, operation safety risk database and emergency disposal management database. The system analyzes the real-time monitoring data in real time, and uses adaptive algorithms to adjust the analysis strategy according to the dynamic information in the circuit breaker service database. For example, when it is found that the seasonal risk hazards increase, the monitoring frequency and analysis accuracy of the relevant parameters are improved. Through data analysis, it is determined whether there is an abnormality in the circuit breaker. If there is an abnormality, the corresponding diagnosis and early warning functions are triggered.

[0024] S300, Fault diagnosis and early warning: When the system detects abnormal data or receives a fault signal, the fault diagnosis function is activated. The fault type, location and component are determined based on the pre-established fault state model and real-time monitoring data. At the same time, the online monitoring data and historical data are combined to determine the fault development trend. If a fault is predicted to occur, a fault early warning is issued to notify the operation and maintenance personnel to take timely measures. The early warning information includes the time when the fault may occur, the scope of impact and the recommended response measures.

[0025] S400, Health assessment and life prediction: Conduct comprehensive health assessments on circuit breakers regularly (such as weekly or monthly), and evaluate the current health status and health trends of the equipment by combining online monitoring data, equipment failure and emergency response information, test and maintenance records, etc. Use the remaining life prediction model to predict the remaining life of the equipment based on the operating service status and various parameter indicators, providing a basis for equipment maintenance and update decisions. The assessment results and predicted life are presented to the operation and maintenance personnel in the form of intuitive reports or charts.

[0026] S500, Maintenance strategy formulation and execution: Based on the results of fault diagnosis, health assessment and life prediction, combined with the inspection and maintenance system, the system automatically generates personalized maintenance strategies. The maintenance strategy includes maintenance methods (such as repair, replacement of parts, overall maintenance, etc.), maintenance schedule (emergency maintenance, planned maintenance, etc.) and required resources (manpower, material resources, financial resources). The operation and maintenance personnel formulate and execute the maintenance plan based on the maintenance strategy recommended by the system. During the maintenance process, the system continuously monitors the maintenance progress and quality, and can dynamically adjust the maintenance strategy if necessary.

[0027] S600, Operation risk assessment and safety control: Before the circuit breaker is switched off or repaired, the system assesses the operation risk based on the operation content, equipment status, personnel qualifications and other factors. The assessment results generate a risk list and corresponding safety control measures, which are automatically embedded in the work ticket and the "four meetings" system. During the operation, the system monitors the operation environment and operation process in real time. If the risk increases, it will promptly remind the operation and maintenance personnel to take additional safety measures to ensure the safety of the operation.

[0028] S700, Emergency response process: When a circuit breaker fails and cannot be repaired by itself, the system starts the emergency response process. First, determine whether the conditions for on-site emergency response are met. If so, direct on-site personnel to troubleshoot the problem according to the predetermined emergency response plan; if not, start the reconstruction self-healing function to restore power supply. During the emergency response process, the system tracks the allocation and progress of emergency resources in real time, and uses the information in the emergency response management database to optimize emergency routes and resource allocation. After the emergency response is completed, the system automatically generates an emergency response report, recording the fault details, response process and results, and providing lessons learned for subsequent emergency management.

[0029] The beneficial effects of the present invention based on a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker are as follows: 1. The present invention obtains the technical attributes and service status of circuit breakers in the entire process of design, construction, handover acceptance, and operation management, and builds a comprehensive and detailed national railway system equipment service database. The rich data collected from many sources, after screening and integration, provides a high-level, high-quality data source for subsequent intelligent diagnosis and analysis. This enables the system to be based on comprehensive and accurate information when performing fault diagnosis, health assessment and other analyses, greatly improving the reliability and accuracy of the diagnostic results, and laying a solid foundation for precise operation and maintenance.

[0030] 2. Innovatively realize the efficient linkage of multiple key systems of traction substations (integrated automation system, railway power supply telecontrol (SCADA) system, auxiliary monitoring system, power supply dispatching system, emergency dispatching command and management system, power supply information integrated management system, railway material management information system). The various systems work together to achieve the remarkable effect of "1 + 1>2" in the process of circuit breaker operation status monitoring, fault diagnosis and emergency disposal. For example, when dealing with circuit breaker failures, it can quickly integrate the resources of various systems, respond quickly, accurately determine the cause of the failure and take effective emergency measures in time, which greatly enhances the ability of the railway traction power supply system to deal with sudden failures and effectively ensures the safety of railway driving.

[0031] 3. According to the various real-time dynamic information (seasonal risk hazards, family defects, equipment failures and emergency response information, special activities, etc.) analyzed from the circuit breaker service database, the online monitoring parameters of the circuit breaker are adjusted intelligently in a timely manner, and the online monitoring frequency can be increased or decreased in time as needed. This adaptive monitoring mechanism effectively improves the monitoring efficiency and enables the reasonable allocation of monitoring resources. It can more keenly capture the potential hazards of the circuit breaker, especially when the hazards are in the latent period, and can be discovered and warned in time, changing the lag of the traditional monitoring mode, preventing failures before they happen, and ensuring the safe operation of the equipment.' 4. The system integrates a variety of advanced functions, including circuit breaker fault warning, accurate diagnosis, comprehensive health assessment, reliability and risk analysis, remaining life prediction, scientific maintenance strategy guidance, and intelligent emergency response. This enables operation and maintenance personnel to grasp the equipment operation status in real time, comprehensively and deeply, plan in advance and accurately implement maintenance strategies, and effectively reduce the blindness of equipment maintenance. At the same time, reasonable maintenance strategies and timely fault warnings reduce operational safety risks, extend the service life of equipment, improve the overall performance of equipment, realize the refined management of the entire life cycle of equipment, and improve the intelligent level and economic benefits of equipment management.

[0032] 5. The present invention is not only applicable to feeder circuit breakers in railway traction substations, but can also be widely used in circuit breakers of different voltage levels and other types of high-voltage equipment (such as GIS switchgear, mutual inductors, disconnectors, etc.) by appropriately adjusting monitoring parameters and analysis models. This wide applicability provides a universal and efficient solution for equipment operation and maintenance management in the entire power industry, which helps to promote the development of power equipment operation and maintenance in the direction of intelligence and integration, and has extremely high industry promotion value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0034] Figure 1 shows the system structure diagram of a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers Figure 2 shows a circuit breaker service database diagram of a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers Figure 3 shows a real-time monitoring database diagram of a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker Figure 4 shows a circuit breaker post-fault reconstruction self-healing solution of a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers Figure 5 shows a circuit breaker operation safety risk database diagram of a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers Figure 6 shows a circuit breaker emergency management database diagram of a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the embodiments of the specification.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] As a preferred solution described in the present invention, the present invention provides a multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers.

[0040] 1. Preparation of Example Before implementing the multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers of the present invention, it is necessary to ensure that the relevant hardware facilities have been installed in place, including servers, data acquisition equipment, communication network equipment, etc., and ensure their normal operation. At the same time, the software system is deployed, the operating system, database management system and the intelligent operation and maintenance system software of the present invention are installed, and the system initialization settings are completed.

[0041] Organize relevant technical personnel to conduct training so that they are familiar with the system architecture, functions, operation procedures, and the composition and use of each database. The training content covers the operation of the system monitoring interface, the use of data analysis tools, fault diagnosis and emergency response procedures, etc., to ensure that the technical personnel can skillfully use the system for daily operation and maintenance and emergency response work.

[0042] 2. Data collection and database construction 2.1. Construction of a large database of in-service Cooperate with the design department to obtain circuit breaker design information, including detailed technical specifications, design change records, etc., to ensure that the design information is accurate. During the project construction process, the construction unit shall timely enter the system with early intervention records, completion acceptance reports, handover test reports, completion drawings, engineering construction records, and product supply contracts. The operation management organization (all power supply systems of the whole railway, all power supply stations and sections of the whole system) is responsible for providing equipment history, "one machine one file" and other technical ledgers, as well as daily operation logs, equipment defect records, circuit breaker tripping records, equipment inspection records, switching operation command records, operation command records and other operation records, and regularly update equipment status evaluation and maintenance records, electrical equipment test reports and other maintenance test records. Establish a data interface with the railway material management information system to obtain real-time information on related materials such as material adjustment, supplier management, product quality notification, material demand plan, warehousing management, and acceptance management. Through these multi-channel data collection, gradually build and improve the circuit breaker service database to ensure the integrity and accuracy of the data.

[0043] 2.2 Real-time monitoring database construction Interface configuration and debugging of the traction substation integrated automation system, railway power supply telecontrol (SCADA) system, and auxiliary monitoring system are carried out to ensure that the working status information of the circuit breaker equipment can be stably obtained. In the integrated automation system, the parameters of the feeder protection measurement and control device and the fault recording device are correctly set to enable them to accurately record the circuit breaker operation process and obtain key data such as the fault current value. The railway power supply telecontrol (SCADA) system collects circuit breaker analog, digital, status, fault report and other data in accordance with the established data acquisition frequency and protocol, and ensures the normal operation of remote control, remote signaling, telemetry, and remote viewing functions. After the installation and debugging of the cameras, sensors and other equipment of the auxiliary monitoring system are completed, the effective collection of video monitoring and inspection information (such as infrared thermal imaging, opening and closing sign information, energy storage status, number of actions, remote / local operation indication signals, etc.), safety precautions information, fire alarm information, and environmental monitoring information is realized. According to actual needs, add an online monitoring system for circuit breakers, select appropriate monitoring sensors and equipment, install them in key parts of circuit breakers, and conduct real-time monitoring of mechanical action characteristics (opening and closing coil current waveform, opening and closing coil resistance, opening and closing time, mechanical structure tripping, offset, energy storage motor monitoring), conventional test items (loop resistance, insulation resistance, vacuum degree, etc.), life (arc extinguishing chamber electrical life monitoring, contact wear monitoring), etc. At the same time, establish a connection with the service big database, and write an adaptive monitoring program based on the real-time dynamic information such as seasonal risk hazards, family defects, equipment failures and emergency disposal information, special activities, etc. analyzed by the service big database, so as to realize timely adjustment of online monitoring parameters and dynamic increase and decrease of monitoring frequency.

[0044] 2.3 Construction of Operational Safety Risk Database Organize professionals to conduct a comprehensive assessment of the risks during the operation of the circuit breaker, establish a risk database, and record in detail various risk factors (such as electrical failure risk, mechanical failure risk, operational error risk, etc.), the possibility of risk occurrence, possible impact and risk level. Conduct hidden danger inspections on the equipment and enter the potential safety hazards found (such as insulation aging, loose components, etc.) into the hidden danger database. According to the equipment maintenance plan and actual operation conditions, formulate a maintenance operation plan to clarify the time node, maintenance content, maintenance goals and required resources for maintenance. According to the standardized operation process, prepare standardized work tickets, and specify each operation step, safety precautions and responsible persons in detail. For switching operations, formulate switching operation cards to clarify the operation sequence, operation conditions and precautions. According to the results of risk assessment and hidden danger inspection, formulate detailed safety card control measures to ensure the safety of personnel and normal operation of equipment during the operation.

[0045] 2.4. Construction of emergency response management database Connect with the emergency dispatch command and management system to obtain emergency cases, emergency resource information, emergency personnel information and other data in the emergency response database, and ensure the smooth execution of the emergency response process and the normal operation of the information statistics and analysis function. Establish a connection with the power supply dispatch system to obtain the self-healing type and technical solution after the circuit breaker failure, so that effective power supply restoration measures can be taken quickly when a failure occurs.

[0046] 3. System function realization and operation and maintenance process 3.1. Implementation of fault diagnosis function Technicians use historical fault data and expert experience to establish detailed models of various fault states of circuit breakers and embed them into the diagnostic analysis system algorithm. When the system receives protection action information and online monitoring data, it automatically starts the fault diagnosis program. By analyzing the protection action logic and extracting the features of online monitoring data, using pattern recognition, artificial intelligence algorithms and other technologies, matching with the pre-established fault state model, accurately determine the fault type (such as short circuit fault, overload fault, ground fault, etc.), fault components (such as contacts, coils, insulating components, etc.) and fault location (accurate to the specific part of the circuit breaker). For example, when the current of a circuit breaker is monitored to suddenly increase and exceed the set threshold, accompanied by abnormal opening and closing time, the system combines the fault state model to determine that it may be an overload fault caused by poor contact of the contacts, and locates the specific contact position.

[0047] 3.2. Implementation of fault warning function The system continuously collects and integrates the online monitoring data of the circuit breaker (such as temperature rise data, insulation resistance value, loop resistance value, opening and closing time, etc.) and historical test data to establish an equipment status monitoring model. Use data mining, machine learning algorithms and other technologies to perform trend analysis and anomaly detection on the data. Set a reasonable warning threshold based on the normal operating parameter range of the equipment and the rules of historical data. When the monitoring data fluctuates abnormally or the trend deviates from the normal range, the system automatically issues a fault warning message. The warning information is promptly notified to the operation and maintenance personnel through SMS, email, system pop-up windows and other methods, and a detailed analysis of the possible causes of the fault and recommended inspection steps are provided. For example, if the temperature rise data of a circuit breaker is found to continue to rise over a period of time and is close to the warning threshold, the system combines historical data and the equipment status monitoring model to predict that there may be potential heat dissipation problems, and issues a warning in advance to remind the operation and maintenance personnel to check the heat dissipation system and related components.

[0048] 3.3. Implementation of comprehensive health assessment function Periodically (such as weekly or monthly) obtain multi-source data such as circuit breaker online monitoring data, equipment failure and emergency disposal information, test and maintenance records from real-time monitoring databases and service big databases. Use fuzzy comprehensive evaluation, hierarchical analysis method and other evaluation methods to build a comprehensive health assessment model. Quantitatively evaluate the health status of the circuit breaker from multiple dimensions such as electrical performance, mechanical performance, and operational stability to determine the health level of the equipment (such as good, general, poor, etc.). At the same time, predict the development and change trend of the health status through time series analysis of historical data. Present the evaluation results and predicted trends to the operation and maintenance personnel in the form of intuitive charts (such as bar charts, line charts) and reports, providing a scientific basis for the formulation of preventive maintenance and maintenance plans for the equipment. For example, based on the changing trend of the insulation resistance value in multiple test and maintenance records and the insulation resistance value monitored online recently, comprehensively evaluate the insulation performance status of the current circuit breaker, and predict the changing trend of the insulation performance in the future, so as to arrange insulation maintenance work in advance.

[0049] 3.4. Implementation of reliability and risk analysis functions The system collects and processes equipment operation data in real time, including parameters such as operation time, number of operations, ambient temperature, and humidity. Combined with the equipment performance degradation model (established based on physical principles and historical data), the service environment impact model (considering the impact of high temperature, high humidity, strong electromagnetic interference and other factors on equipment performance) and the record of human maintenance activities (maintenance quality, maintenance timeliness, etc.), the reliability of the circuit breaker is quantitatively calculated using reliability analysis theory (such as Markov model, fault tree analysis, etc.), and reliability indicators (such as failure rate, mean time between failures, etc.) are obtained. At the same time, the risk factors that may affect the normal operation of the equipment (such as external interference caused by bad weather, aging of components caused by long-term operation, etc.) are identified and evaluated, and the risk level (high, medium, and low) is determined. Based on the results of reliability and risk analysis, decision support is provided for the adjustment of operation and maintenance strategies (such as increasing the frequency of inspections, replacing vulnerable parts in advance, etc.). For example, in high temperature and high humidity seasons, the system combines environmental monitoring data and equipment performance degradation models to analyze that the failure rate of the circuit breaker in this environment may increase, and promptly reminds the operation and maintenance personnel to strengthen monitoring and maintenance, and take corresponding risk prevention and control measures, such as adding heat dissipation equipment and improving the equipment operating environment.

[0050] 3.5. Implementation of Remaining Life Prediction Function According to the circuit breaker's service status (including operating years, cumulative number of operations, fault history, etc.) and various parameter indicators (such as electrical performance parameters, mechanical performance parameters, etc.), relevant data is extracted from the service database and real-time monitoring database. Use data-driven methods (such as neural networks, support vector machines, etc.) or physical model-based methods (considering physical processes such as material fatigue and wear) to build a remaining life prediction model. Input the real-time collected equipment operation data into the model to predict the remaining life of the equipment. The prediction results are presented to the operation and maintenance personnel in an intuitive form such as remaining operating time or remaining number of operations, and provide key references for equipment overhaul, renovation and other decisions based on the remaining life. For example, for a circuit breaker that has been in operation for many years and has a large number of operations, the system predicts that its remaining life may be less than one year by analyzing its historical operation data, current electrical and mechanical performance parameters. The operation and maintenance personnel plan equipment replacement or overhaul plans in advance to ensure the stable operation of the railway power supply system.

[0051] 3.6. Implementation of maintenance strategy formulation function Based on the equipment status information provided by the above functions, combined with the inspection and maintenance system and the current health status of the equipment, the system uses optimization algorithms (such as genetic algorithms, simulated annealing algorithms, etc.) and decision theory to formulate personalized and refined maintenance strategies. According to the fault diagnosis results and health assessment levels, the optimal maintenance method (such as preventive maintenance, corrective maintenance, condition maintenance, etc.) is determined. For example, for equipment that is in good health but close to the warning threshold, preventive maintenance is used to replace some vulnerable parts in advance; for equipment that has failed, the appropriate corrective maintenance method is selected according to the type and severity of the fault. At the same time, according to the equipment operation status and maintenance feedback, the maintenance cycle is dynamically adjusted, and maintenance resources (manpower, material resources, and financial resources) are reasonably arranged to minimize maintenance costs and ensure equipment reliability. The maintenance strategy lists the maintenance content, maintenance time, required resources, and responsible persons in detail in the form of a maintenance plan, which is convenient for operation and maintenance personnel to execute.

[0052] 3.7. Implementation of operational risk assessment function Before the circuit breaker switching or maintenance operation, the system uses risk matrix, job safety analysis (JSA) and other methods to conduct a comprehensive assessment of the operation risk based on factors such as the operation content (such as the type of switching operation, maintenance items), equipment status (obtaining the current equipment operating parameters and health status from the real-time monitoring database), and personnel qualifications (obtaining the operator's skill level and training records from the personnel management system). Determine the risk factors that may exist in the operation process (such as the risk of misoperation, electric shock, and falling from heights), assess the possibility of each risk factor and the severity of the possible consequences, and thus determine the operation risk level (high, medium, and low). Based on the risk assessment results, generate detailed safety card control measures, such as the equipment inspection list before operation, the safety operating procedures during operation, and the requirements for wearing protective equipment. These safety card control measures are automatically embedded in the work ticket and the "four meetings" (pre-operation anticipation meeting, pre-operation preparation meeting, post-operation summary meeting, and closing meeting) system to ensure that the safety risks in the operation process are effectively controlled. During the operation process, the system monitors the working environment (such as monitoring on-site temperature, humidity, personnel location, etc. through auxiliary monitoring systems) and operating procedures (monitoring whether the operating steps are correct through operation records and sensor data) in real time. If an increased risk is found (such as abnormal environmental parameters, illegal operating procedures, etc.), an alarm will be issued in time to remind the operation and maintenance personnel to take additional safety measures, such as suspending operations, adjusting operating procedures, and adding protective measures.

[0053] 3.8. Implementation of fault self-detection and reconstruction self-healing functions When a circuit breaker fails, the system automatically triggers the internal fault self-check program. The self-check program quickly determines the cause and scope of the fault by detecting the control circuit, sensor signals, and key component status (such as contact position, energy storage mechanism status, etc.). If the fault self-check finds that the fault can be repaired by itself (such as temporary interference in the control circuit causing signal abnormality), the system automatically takes corresponding repair measures (such as restarting the control circuit, clearing interference signals, etc.) to restore the normal operation of the circuit breaker. If it is determined after the self-check that the fault cannot be eliminated by itself, the system immediately establishes a high-speed data connection with the emergency dispatch command and management system, and transmits detailed fault information (including fault type, location, occurrence time, etc.) to the system in real time. The emergency dispatch command and management system uses intelligent decision-making algorithms to quickly and comprehensively judge the on-site fault emergency handling conditions based on the preset emergency handling rules and the actual situation on site (such as personnel distribution, tool and material reserves, traffic conditions, etc.). If it is determined that the conditions for emergency dispatch are met (such as sufficient maintenance personnel and tools on site, and convenient transportation), the system automatically generates emergency handling instructions and notifies the on-site commander to organize emergency handling forces to rush to the site. On-site personnel perform troubleshooting according to the predetermined emergency response process (obtained from the emergency response management database), such as replacing faulty parts and repairing damaged lines. If the on-site emergency response conditions are not met (such as the lack of key maintenance tools on site or the inability of personnel to arrive in time), the system automatically starts the reconstruction self-healing function. According to the fault type and system configuration, select the appropriate reconstruction self-healing solution, such as commissioning the backup circuit breaker (obtaining the status information of the backup circuit breaker from the real-time monitoring database to ensure its availability) or starting the "one belt two" and roundabout power supply scheme (obtaining the relevant power supply network topology and operating parameters from the power supply dispatching system, calculating and determining the optimal reconstruction self-healing path), to ensure that power supply is restored as soon as possible and reduce the impact on railway transportation. During the emergency response process, the system continuously tracks the allocation of emergency resources (such as the dispatch of maintenance personnel, the transportation of tools and materials) and the progress of the response (through feedback from on-site personnel and sensor data monitoring), and adjusts the emergency strategy in a timely manner to ensure that the emergency response work is carried out efficiently and orderly. After the emergency response is completed, the system automatically collects and organizes relevant data in the emergency response process (such as fault handling time, resources used, measures taken, etc.), combines the equipment historical information and similar fault handling experience in the circuit breaker service database, and uses intelligent report generation technology to generate detailed and accurate emergency response reports, providing valuable information for subsequent accident analysis and emergency management improvements.

[0054] 3.9. Implementation of emergency response auxiliary functions After the circuit breaker failure occurs, the system quickly calls the fault case library, equipment topology information and other data in the emergency disposal database. Using intelligent matching algorithms, the current fault characteristics (such as fault type, location, related equipment operating parameters, etc.) are matched with historical fault cases to quickly achieve fault location (determine the specific location of the fault, accurate to a certain component of the equipment or a certain node of the line) and qualitative (determine the nature of the fault, such as short circuit, open circuit, overload and other fault causes). At the same time, according to the equipment topology information and real-time operation data, the fault impact range (such as the affected power supply area, related equipment, etc.) is analyzed to provide accurate information support for efficient emergency dispatch. Based on the fault location and impact range, the system combines the information in the emergency resource management module (including the distribution of emergency personnel, the location and quantity of tool and material reserves, etc.), and uses the optimization algorithm to plan the optimal emergency route to ensure that emergency disposal personnel and materials can arrive at the scene quickly. During the emergency disposal process, the system monitors the deployment and use of emergency resources in real time (such as the presence of personnel and the consumption of tools and materials), and adjusts the resource allocation plan in time according to actual needs to ensure the rational use of resources. Through real-time communication with on-site emergency response personnel (such as handheld terminal devices, vehicle-mounted communication systems, etc.) and data interaction (such as fault data collected on-site, processing progress information, etc.), the system follows up the emergency response process throughout, keeps abreast of the on-site situation, and provides decision support for the commanders. For example, when the on-site fault situation is found to be more complicated than expected and requires additional maintenance personnel or special tools, the system quickly deploys nearby available resources to provide support based on the information in the emergency resource management module. After the emergency response is completed, the system automatically generates an emergency response report, which records in detail the time of the fault, fault details, emergency response process (including measures taken, resources used, response time, etc.), response results (such as whether the fault has been completely eliminated, whether the power supply has returned to normal, etc.), and a summary of lessons learned. The report is stored in the form of electronic documents or database records to facilitate subsequent query and analysis, providing a reference for improving emergency response capabilities and improving the emergency management system.

[0055] As a preferred solution of the present invention, the system operation data is analyzed and summarized regularly (such as quarterly or semi-annually) to evaluate the performance and accuracy of each functional module of the system. According to the actual operation and maintenance experience and data analysis results, the fault diagnosis model, health assessment algorithm, remaining life prediction model, etc. are optimized and improved to improve the reliability and effectiveness of the system.

[0056] As a preferred solution described in the present invention, the shell is also the supporting part of the overall structure. The spring is one of the key components of this type of one-way valve, but due to the upstream pressure fluctuation, the spring is in a state of repeated compression and recovery, which is prone to fatigue fracture. When the spring is damaged, a gap will be generated between the frustum and the conical base, thereby affecting the sealing performance of the valve. The frustum and the conical base are components that work together with the spring, and their coordination is affected by the state of the spring. When the springs are normal, they can maintain a good sealing state; after the spring fails, the gap between them will cause leakage problems.

[0057] As a preferred solution described in the present invention, attention is paid to the development of industry technology, and new technologies and methods (such as more advanced sensor technology, big data analysis algorithms, artificial intelligence models, etc.) are introduced in a timely manner to upgrade and expand the system to adapt to the ever-changing operation and maintenance needs of railway traction substation circuit breakers. For example, with the development of Internet of Things technology, more intelligent sensors are added to achieve real-time monitoring of more parameters of circuit breakers and more refined operation and maintenance management; deep learning algorithms are used to deeply mine a large amount of operation and maintenance data to further improve the accuracy of fault prediction and diagnosis.

[0058] As a preferred solution described in the present invention, feedback from operation and maintenance personnel and users is collected, and problems in the system operation interface, functional practicality, data visualization, etc. are optimized to improve the system's usability and user experience, ensure that the system can better serve the operation and maintenance of railway traction substation circuit breakers, and ensure the safe and stable operation of the railway power supply system.

[0059] Through the above specific implementation methods, the multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers of the present invention can effectively realize the intelligent operation and maintenance management of circuit breakers in actual railway operations, give full play to its various innovative functions, improve equipment reliability and operating efficiency, and provide strong guarantees for railway power supply safety. At the same time, in the actual application process, it is continuously optimized and improved to adapt to the development and technological progress of the railway industry.

[0060] The present invention also provides a method for using a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker, which comprises the following steps: Step 1: Obtain the circuit breaker service database Figure 2 As shown: The technical attributes and service status of circuit breakers are obtained throughout the entire process of design, construction, handover and acceptance, and operation management. All relevant design departments, construction units, operation management agencies (all power supply systems on the entire railway, all power supply stations and sections in the entire system), and manufacturers are linked to further improve the circuit breaker service database.

[0061] Step 2: Get the circuit breaker real-time monitoring database Figure 3As shown: For the existing integrated automation system, railway power supply telecontrol (SCADA) system, and auxiliary monitoring system, the advantages of each system are brought into play, the functions of each system are linked, and when necessary, system optimization and secondary development are carried out for each system.

[0062] The circuit breaker real-time monitoring database also includes an online monitoring system specially added for circuit breakers. It adjusts the circuit breaker online monitoring parameters in a timely manner, increases or decreases the online monitoring frequency, and monitors the disconnection control circuit break signal and AC / DC power failure alarm signal in real time online based on the real-time dynamic information such as seasonal risk hazards, family defects, equipment failures, emergency response information, special activities, etc. analyzed from the circuit breaker service database. It also monitors the mechanical action characteristics, routine test items, and life monitoring.

[0063] Step 3: Obtain the operation safety risk database such as Figure 5 As shown: including the risk library and hidden danger library of circuit breakers, maintenance work plan, standardized work ticket, switching operation card, safety card control measures, etc.

[0064] Step 4: Obtain the emergency response management database such as Figure 6 As shown in the figure: The emergency response management database is obtained from the emergency dispatch command management system and the power supply dispatch system; the above database is the most important and important data for the operation of the railway traction power supply system. Ensuring the accuracy and reliability of the collected data is the key to realizing intelligent diagnosis and analysis. Step 5: Integrate, process and verify the authenticity of the above four types of data. Through data collection, data processing and data analysis, realize circuit breaker fault alarm, fault diagnosis, reliability analysis, life prediction, health management, maintenance strategy and disposal.

[0065] After the multi-dimensional and adaptive diagnostic analysis of the present invention, an operation and maintenance strategy is proposed, and a one-stop full-process auxiliary emergency disposal is realized after the circuit breaker failure, thereby implementing full life cycle management of the railway traction substation circuit breaker, realizing the goals of intelligent operation and maintenance, and improving equipment safety and reliability.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers, characterized in that: include: A circuit breaker multidimensional database, which is composed of a circuit breaker service database, a real-time monitoring database, an operation safety risk database, and an emergency disposal management database; The circuit breaker service database includes circuit breaker design information, construction handover and acceptance information, relevant technical standards, regulations, systems, technical specifications, operation instructions and related operation and maintenance and repair technical information, as well as basic information such as model specifications, factory date, manufacturer, inventory status, upgrade status, warranty period, etc. of circuit breakers and related accessories, as well as drawings, technical records, operation records and maintenance test records obtained from the power supply information comprehensive management system, and relevant material information obtained from the railway material management information system; The real-time monitoring database obtains the working status information of the circuit breaker equipment from the traction substation integrated automation system, the railway power supply telecontrol (SCADA) system, the auxiliary monitoring system, and the online monitoring system. The online monitoring system adjusts the circuit breaker online monitoring parameters in a timely manner, increases or decreases the online monitoring frequency in a timely manner, and monitors the disconnection signal of the separation and combination control circuit, the AC and DC power failure alarm signal, as well as the mechanical action characteristics, conventional test items, and life monitoring according to the real-time dynamic information such as seasonal risk hazards, family defects, equipment failures and emergency disposal information, and special activities analyzed by the circuit breaker service database; The operation safety risk database includes a risk library and a hidden danger library of circuit breakers, maintenance operation plans, standardized work tickets, switching operation cards, and safety card control measures; The emergency disposal management database is obtained from the emergency dispatch command management system and the power supply dispatch system, including the emergency disposal database, emergency disposal process, information statistical analysis, and the type and technical solution of self-recovery after the circuit breaker failure; The multi-dimensional adaptive intelligent operation and maintenance system terminal is integrated into the intelligent operation and maintenance system to intelligently analyze massive data and realize the following functions: Fault diagnosis function: Establish various fault state models of circuit breakers, embed the diagnostic analysis system, and judge the fault type, fault component and fault location by processing protection action information and online monitoring data; Fault early warning function: Integrate the online monitoring data and historical test data of the circuit breaker, analyze the changes in the equipment status, discover the hidden dangers of the fault incubation period early, comprehensively judge the development trend of the fault, and issue a fault early warning in time; Comprehensive health assessment function: Analyze the health status of equipment and its development and change trends through online monitoring, equipment failure and emergency response information or test and maintenance records and other historical data; Reliability and risk analysis function: Process, integrate, analyze and utilize equipment operation data, comprehensively consider factors such as equipment performance degradation, service environment, and human maintenance activities, and analyze and evaluate the reliability and risks of circuit breakers; Remaining life prediction function: Comprehensive evaluation and analysis is performed based on the circuit breaker's operating conditions and various parameter indicators to determine the remaining life of the equipment; Maintenance strategy formulation function: Combine the inspection and maintenance system and health status to assist in formulating reasonable maintenance strategies, provide optimized maintenance methods, maintenance cycles, and cost management, and continuously improve maintenance plans; Operation risk assessment function: evaluate and analyze the on-site operation risks brought about by circuit breaker switching and maintenance operations, propose safety control measures in on-site operations, and specify them in the work ticket and "four meetings" system; Fault self-checking and reconstruction self-healing function: The circuit breaker has a fault self-checking function. On the basis of fault diagnosis, the fault self-checking is started first. If the fault cannot be eliminated after the fault self-checking is started, the emergency dispatch command and management system is immediately started to conduct a comprehensive assessment of the on-site emergency response conditions. If the conditions for emergency dispatch are met, the on-site command conducts emergency response and eliminates the fault. If the conditions for on-site emergency response are not met, the reconstruction self-healing function is started, the standby circuit breaker is put into operation, or the "one belt two" and circuitous power supply schemes are started to restore power supply as soon as possible. Emergency response auxiliary function: After a circuit breaker fails, the emergency response database is called to locate and characterize the fault, preparing for efficient emergency dispatch; the emergency response process realizes efficient management of emergency resources and follows up the entire emergency response process; the circuit breaker service big data and on-site emergency response information are called to realize intelligent generation of emergency response reports.

2. The multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers according to claim 1 is characterized in that: The railway power supply telecontrol (SCADA) system collects data on analog quantities, digital quantities, status quantities, fault reports, etc. of the circuit breaker, and has remote control, remote signaling, remote measurement and remote viewing functions.

3. The multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers according to claim 1 is characterized in that: The auxiliary monitoring system obtains video monitoring and inspection information, safety precaution information, fire alarm information, and environmental monitoring information, among which the video monitoring and inspection information mainly obtains infrared thermal imaging, opening and closing indicator information, energy storage status, number of actions, remote / local operation indication signals and other information.

4. The multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers according to claim 1 is characterized in that: The online monitoring system realizes signal early warning for high-frequency defects of circuit breakers, and full-item monitoring and analysis and fault diagnosis analysis for potential hidden dangers. For 27.5kV outdoor vacuum circuit breakers, the focus is on realizing early warning signals for disconnection and closing control circuits, and early warning signals for AC and DC power failures. The online monitoring items of circuit breakers include mechanical action characteristic monitoring, routine test item monitoring, and life monitoring.

5. The multi-dimensional adaptive intelligent operation and maintenance system for railway traction substation circuit breakers according to claim 1 is characterized in that: The emergency dispatch command and management system realizes optimal planning of emergency routes, one-stop assistance for dispatch command, integrated management of emergency resources, and intelligent generation of emergency response reports from the emergency response database, emergency response process, information statistical analysis, etc.

6. A method for using a multi-dimensional adaptive intelligent operation and maintenance system for a railway traction substation circuit breaker, characterized in that: The following steps are involved: Data collection and initialization: Collect data from various data sources to build and improve the circuit breaker multi-dimensional database, including obtaining relevant information of the circuit breaker service database from the design department, construction unit, operation management organization and manufacturer; collecting real-time monitoring data from the integrated automation system, railway power supply telecontrol (SCADA) system, auxiliary monitoring system and online monitoring system; obtaining operation safety risk database information from the internal management system; Obtain emergency response management database data from the emergency dispatch command and management system and the power supply dispatch system; during the data collection process, perform data cleaning and format conversion to ensure data accuracy and consistency and complete system initialization; Real-time monitoring and data analysis: Continuously obtain the latest working status information of the circuit breaker from the real-time monitoring database, and regularly update the relevant information in the service database, operation safety risk database and emergency disposal management database; the system analyzes the real-time monitoring data in real time, and uses adaptive algorithms to adjust the analysis strategy according to the dynamic information in the circuit breaker service database; through data analysis, determine whether there is an abnormality in the circuit breaker, and if there is an abnormality, trigger the corresponding diagnosis and early warning functions; Fault diagnosis and early warning: When the system detects abnormal data or receives a fault signal, the fault diagnosis function is activated to determine the fault type, location and component based on the pre-established fault state model and real-time monitoring data. At the same time, the online monitoring data and historical data are combined to determine the fault development trend. If a fault is predicted to occur, a fault early warning is issued to notify the operation and maintenance personnel to take timely measures. The early warning information includes the time when the fault may occur, the scope of impact and the recommended response measures. Health assessment and life prediction: Regularly conduct comprehensive health assessments on circuit breakers, and evaluate the current health status and health trends of the equipment by combining online monitoring data, equipment failure and emergency response information, test and maintenance records, etc.; use the remaining life prediction model to predict the remaining life of the equipment based on the operating service status and various parameter indicators, and provide a basis for equipment maintenance and update decisions; the assessment results and predicted life are presented to the operation and maintenance personnel in the form of intuitive reports or charts; Maintenance strategy formulation and execution: Based on the results of fault diagnosis, health assessment and life prediction, combined with the inspection and maintenance system, the system automatically generates personalized maintenance strategies, which include maintenance methods, maintenance schedules and required resources. Operation and maintenance personnel formulate and execute maintenance plans based on the maintenance strategies recommended by the system. During the maintenance process, the system continuously monitors the maintenance progress and quality, and can dynamically adjust the maintenance strategy if necessary. Operation risk assessment and safety control: Before the circuit breaker is switched off or repaired, the system assesses the operation risk based on the operation content, equipment status, personnel qualifications and other factors. The assessment results generate a risk list and corresponding safety control measures, which are automatically embedded in the work ticket and the "four meetings" system. During the operation, the system monitors the operation environment and operation process in real time. If the risk increases, it will promptly remind the operation and maintenance personnel to take additional safety measures to ensure the safety of the operation. Emergency response process: When a circuit breaker fails and cannot be repaired by itself, the system starts the emergency response process. First, it determines whether the conditions for on-site emergency response are met. If so, it directs on-site personnel to troubleshoot the problem according to the predetermined emergency response plan. If not, it starts the reconstruction self-healing function to restore power supply. During the emergency response process, the system tracks the deployment and progress of emergency resources in real time, and uses the information in the emergency response management database to optimize emergency routes and resource allocation. After the emergency response is completed, the system automatically generates an emergency response report, recording the fault details, response process and results, and providing experience and lessons for subsequent emergency management.

7. The method of use according to claim 7, characterized in that: In the real-time monitoring and data analysis steps, the adaptive algorithm adjusts the monitoring frequency and analysis accuracy according to real-time dynamic information such as seasonal risk hazards, family defects, equipment failures, emergency response information, special activities, etc., increases the monitoring frequency for parameters with risk hazards, and conducts in-depth analysis of key defect or failure related data.

8. The method of use according to claim 7, characterized in that: In the fault diagnosis function, pattern recognition and artificial intelligence algorithms are used to process protection action information and online monitoring data, and the fault type, component and location are determined by matching with the pre-established fault state model; In the fault warning function, data mining and machine learning algorithms are used to perform trend analysis and anomaly detection on online monitoring data and historical test data, and determine whether to issue a warning based on dynamic thresholds.

9. The method of use according to claim 7, characterized in that: In the comprehensive health assessment function, fuzzy comprehensive evaluation, hierarchical analysis method and other evaluation methods are used to quantitatively evaluate the health status of the circuit breaker from multiple dimensions such as electrical performance, mechanical performance, and operational stability, and the development and change trend of the health status is predicted through time series analysis.

10. The method of use according to claim 7, characterized in that: In the reliability and risk analysis function, the reliability of the circuit breaker is quantitatively calculated using reliability analysis theory, combined with the equipment performance degradation model, the service environment impact model and the record of human maintenance activities, risk factors are identified and risk levels are determined, and the operation and maintenance strategy is adjusted according to the results.

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