GIS equipment mechanical-electrical transient characteristic combined monitoring method and related equipment

Abstract

The invention relates to the technical field of GIS equipment test methods and state monitoring, and discloses a GIS equipment mechanical-electrical transient characteristic joint monitoring method and related equipment. The method comprises the following steps: acquiring a GIS equipment electromechanical transient characteristic signal; performing time sequence and frequency domain analysis processing on the acquired GIS equipment mechanical-electrical transient characteristic signal to obtain multi-dimensional data; and establishing a comprehensive evaluation model of the electromechanical state of the GIS equipment, performing training, inputting the processed multi-dimensional data into the trained comprehensive evaluation model of the electromechanical state of the GIS equipment, outputting an evaluation result, and performing combined monitoring of the electromechanical transient characteristics of the GIS equipment according to the evaluation result. The multi-dimensional data obtained through time sequence and frequency domain analysis processing can comprehensively reflect the mechanical and electrical states of the GIS equipment. The established comprehensive evaluation model can fuse multi-dimensional data, and more accurate equipment state evaluation is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of GIS equipment test methods and condition monitoring, and specifically provides a combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment and related equipment. Background Art

[0002] GIS (Gas Insulated Switchgear) has been widely recognized and applied in the power system due to its excellent safety and reliability, miniaturized design, high insulation performance, and strong adaptability to various environments. By adopting a fully enclosed metal structure, the operation safety and stability of this type of equipment are effectively improved. However, the internal mechanical structure of GIS equipment is extremely complex, and this complexity and the fully enclosed design characteristics pose great challenges to the accurate positioning and rapid repair of mechanical failures.

[0003] During the operation of GIS equipment, it will inevitably be subjected to mechanical vibrations and fast transient overvoltages caused by switch operations. These transient characteristics pose potential threats to the internal structure and insulation performance of GIS equipment. Mechanical vibrations may cause loosening or wear of internal components of the equipment, while fast transient overvoltages may trigger partial discharges or even breakdown phenomena. Over time, these transient effects will severely erode the insulation performance of the equipment and ultimately lead to equipment failures.

[0004] Given the important position of GIS equipment in the power system and the potential risks of mechanical failures and degradation of insulation performance, it is particularly crucial to quantitatively measure the mechanical vibrations and transient overvoltages under switch operations. However, relying solely on conventional electrical tests for assessment has revealed obvious limitations. These conventional tests often fail to comprehensively and accurately capture the transient characteristics of GIS equipment during switch operations and their effects on equipment performance, thus limiting the effectiveness of fault warning and rapid repair.

[0005] Therefore, in order to further improve the operation reliability and safety of GIS equipment, there is an urgent need to develop a new technology or method that can accurately quantitatively measure mechanical vibrations and transient overvoltages under switch operations to achieve comprehensive monitoring and effective evaluation of the performance of GIS equipment. Summary of the Invention

[0006] In order to overcome the defects of the above-mentioned existing technologies, the purpose of the present invention is to provide a combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment and related equipment to solve the technical problem of how to improve the accurate measurement of the mechanical and electrical transient characteristics of GIS equipment in the existing technology.

[0007] The present invention is realized through the following technical solutions: In the first aspect, the present invention provides a combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment, including: Obtain the mechanical-electrical transient characteristic signals of the GIS device; Perform time series and frequency domain analysis on the obtained mechanical-electrical transient characteristic signals of the GIS device to obtain multi-dimensional data; Establish and train a comprehensive evaluation model for the mechanical and electrical states of the GIS device, input the processed multi-dimensional data into the trained comprehensive evaluation model for the mechanical and electrical states of the GIS device, output the evaluation results, and perform joint monitoring of the mechanical-electrical transient characteristics of the GIS device according to the evaluation results.

[0008] Preferably, the mechanical-electrical transient characteristic signal data of the GIS device includes acceleration signals, overvoltage signals, and ultrasonic signals.

[0009] Preferably, in the step of performing time series and frequency domain analysis on the obtained mechanical-electrical transient characteristic signals of the GIS device to obtain multi-dimensional data, the specific process of performing time series analysis is as follows: Perform denoising, interpolation, and normalization processing on the collected mechanical-electrical transient characteristic signals of the GIS device in sequence; Determine the reference signal, perform time series alignment on other signals according to the reference signal, and calculate the time difference between each signal on the basis of time series alignment; Evaluate the synchronization of each signal according to the threshold of the time difference. If the time difference of each signal exceeds the set threshold, it is determined that the synchronization is poor and readjustment is performed; Extract the signal amplitudes from each signal with good synchronization, perform anomaly detection on the signal amplitudes, and identify the anomaly characteristic data according to the anomaly detection results, where the anomaly characteristic data includes abnormal vibration data or voltage spike data.

[0010] Preferably, in the step of performing time series and frequency domain analysis on the obtained mechanical-electrical transient characteristic signals of the GIS device to obtain multi-dimensional data, the specific process of performing frequency domain analysis is as follows: Preprocess the mechanical-electrical transient characteristic signals of the GIS device, and input the preprocessed signals into the fast Fourier transform algorithm to convert them into frequency domain signals to obtain a spectrogram; Analyze the frequency spectrum characteristics of the vibration and overvoltage signals according to the spectrogram, and identify the relationship between the specific frequency components and the device state according to the frequency spectrum characteristics of the vibration and overvoltage signals.

[0011] Furthermore, the relationship between the specific frequency components and the device state includes the relationship between the natural frequency of the device and the device structure, the relationship between the vibration characteristic frequency and the state of the moving parts, and the relationship between the electrical performance and the overvoltage signal.

[0012] Preferably, a comprehensive evaluation model for the mechanical and electrical state of the GIS device is established and trained. The processed multi-dimensional data is input into the trained comprehensive evaluation model for the mechanical and electrical state of the GIS device, and the evaluation result is output. In the step of jointly monitoring the mechanical and electrical transient characteristics of the GIS device according to the evaluation result, the specific process is as follows: The preprocessed multi-dimensional data is divided into a training set, a validation set, and a test set; The model is trained using the training set data, the model training is completed, and the model performance is evaluated using the validation set data; The test set data is input into the trained model to output the evaluation result.

[0013] Furthermore, the evaluation result includes insulation performance evaluation, mechanical wear degree evaluation, and fault warning; Among them, in the insulation performance evaluation, according to the insulation state score output by the model, it is judged whether the insulation performance is normal or there are potential risks; The mechanical wear degree evaluation judges the wear degree of mechanical components and whether maintenance is required according to the mechanical state score output by the model; The fault warning generates a fault warning message according to the abnormal probability output by the model, indicating the type and location of the fault that occurred.

[0014] In a second aspect, the present invention also provides a joint monitoring system for the mechanical and electrical transient characteristics of a GIS device, including: A signal acquisition module for acquiring the mechanical and electrical transient characteristic signals of the GIS device; A signal processing module for performing time series and frequency domain analysis processing on the acquired mechanical and electrical transient characteristic signals of the GIS device to obtain multi-dimensional data; A model evaluation module for establishing and training a comprehensive evaluation model for the mechanical and electrical state of the GIS device, inputting the processed multi-dimensional data into the trained comprehensive evaluation model for the mechanical and electrical state of the GIS device, outputting the evaluation result, and jointly monitoring the mechanical and electrical transient characteristics of the GIS device according to the evaluation result.

[0015] In a third aspect, the present invention also provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the joint monitoring method for the mechanical and electrical transient characteristics of the GIS device as described above are implemented.

[0016] In a fourth aspect, the present invention also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps of the joint monitoring method for the mechanical and electrical transient characteristics of the GIS device as described above are implemented.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment. By real-time monitoring the mechanical and electrical transient characteristic signals of GIS equipment, it can quickly capture the minute changes in the equipment state, issue early warnings in a timely manner, and avoid the development of potential faults. The multi-dimensional data obtained by the present invention through time-series and frequency-domain analysis and processing can comprehensively reflect the mechanical and electrical states of GIS equipment, including key parameters such as vibration and overvoltage. The established comprehensive evaluation model can integrate multi-dimensional data to achieve more accurate equipment state evaluation, reduce false alarms and missed alarms. Through continuous monitoring and evaluation, preventive maintenance can be carried out before the equipment fails, extending the service life of the equipment and improving the reliability of the equipment.

[0018] Furthermore, the present invention conducts multi-dimensional measurements on the mechanical vibration, overvoltage and their transient characteristics during switch operation, and conducts comprehensive analysis in combination with time-series and frequency-domain such as acceleration, transient overvoltage, and ultrasound to realize the combined evaluation of the mechanical and electrical states of GIS equipment, avoid the limitations of conventional electrical test assessments, and improve the insulation reliability of GIS equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a flowchart of the combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment in an embodiment of the present invention; Figure 2 is a schematic diagram of the connection of the mechanical signal acquisition sensor of GIS equipment in an embodiment of the present invention; Figure 3 is a schematic diagram of the combined monitoring method for the mechanical and electrical transient characteristics of GIS equipment in an embodiment of the present invention; Figure 4 is a schematic diagram of the principle of the combined monitoring system for the mechanical and electrical transient characteristics of GIS equipment in an embodiment of the present invention; In the figure: 1. Signal acquisition module; 2. Signal processing module; 3. Model evaluation module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The purpose of the present invention is to provide a combined monitoring method and related equipment for the mechanical and electrical transient characteristics of GIS equipment to solve the technical problem of how to improve the accurate measurement of the mechanical and electrical transient characteristics of GIS equipment in the prior art.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings: Embodiment 1 Refer to Figure 1 and Figure 3 In an embodiment of the present invention, a combined monitoring method for the mechanical and electrical transient characteristics of a GIS device is provided, including the following steps: Step 1, obtain the mechanical and electrical transient characteristic signals of the GIS device; Specifically, the mechanical and electrical transient characteristic signal data of the GIS device includes acceleration signals, overvoltage signals, and ultrasonic signals.

[0023] According to Figure 2 shown, in this embodiment, the acceleration signal is obtained through an acceleration sensor respectively, the overvoltage signal is obtained through a transient overvoltage measurement module, and the ultrasonic signal is obtained through an ultrasonic sensor; Among them, the acceleration sensor: is installed on the key mechanical parts of the GIS device, and is used to capture the mechanical vibration signals during switch operation, such as at the disconnector, circuit breaker, and busbars close to the operating mechanism of the distance switch.

[0024] The transient overvoltage measurement module: is integrated inside the GIS device or near the connection point, and is used to record the transient overvoltage waveform caused by switch operation in real time.

[0025] The ultrasonic sensor: is deployed outside the GIS cavity, and is used to detect the ultrasonic signals generated by switch actions to assist in analyzing the internal discharge or foreign object movement conditions.

[0026] In this embodiment, the data acquisition and processing unit is responsible for collecting the above sensor data, performing synchronous processing and analysis, including time series alignment, frequency domain transformation, etc., to extract characteristic parameters, and storing the original signals and characteristic parameters in the data storage module, and finally displaying the signal spectrum and diagnostic results through the display module.

[0027] Step 2, perform time series and frequency domain analysis processing on the obtained mechanical and electrical transient characteristic signals of the GIS device to obtain multi-dimensional data; Specifically, the specific process of performing time series analysis processing is as follows: Perform denoising, interpolation, and normalization processing on the collected mechanical and electrical transient characteristic signals of the GIS device in sequence; Determine the reference signal, and perform time series alignment on other signals according to the reference signal, and calculate the time difference between each signal on the basis of time series alignment; Evaluate the synchronization of each signal according to the threshold of the time difference. If the time difference of each signal exceeds the set threshold, it is determined that the synchronization is poor and readjustment is performed; Extract the signal amplitudes from signals with good synchronization, perform anomaly detection on the signal amplitudes, and identify anomaly feature data based on the anomaly detection results, where the anomaly feature data includes abnormal vibration data or voltage spike data.

[0028] Specifically, the specific process of performing frequency-domain analysis is as follows: Preprocess the machine-electrical transient characteristic signals of the GIS device, and input the preprocessed signals into the fast Fourier transform algorithm to convert them into frequency-domain signals, obtaining a spectrogram; Analyze the spectral characteristics of the vibration and overvoltage signals based on the spectrogram, and identify the relationship between specific frequency components and the device state according to the spectral characteristics of the vibration and overvoltage signals.

[0029] Among them, the relationship between specific frequency components and the device state includes the relationship between the natural frequency of the device and its structure, the relationship between the vibration characteristic frequency and the state of moving parts, and the relationship between electrical performance and overvoltage signals.

[0030] In this embodiment, the relationship between the natural frequency of the device and its structure: The natural frequency of the device is determined by its physical structure and is usually related to factors such as the material, shape, and size of the device. When the device is subjected to an external excitation, if the excitation frequency is close to or equal to the natural frequency of the device, the device will resonate, resulting in a significant increase in amplitude. Therefore, by monitoring the amplitude change of specific frequency components (such as the natural frequency), it can be determined whether the structure of the device has changed, such as cracks, looseness, etc.

[0031] The relationship between the vibration characteristic frequency and the state of moving parts: The moving parts of the device (such as bearings, gears, etc.) will generate specific vibration characteristic frequencies during operation. These frequency components are closely related to factors such as the rotational speed, load, and wear degree of the parts. For example, when a bearing fails, specific fault frequencies, such as the inner-race fault frequency and the outer-race fault frequency, are often generated. By monitoring the amplitude and phase changes of these characteristic frequencies, the wear degree, lubrication state, and whether there are faults of the moving parts can be judged.

[0032] The relationship between electrical performance and overvoltage signals: For electrical equipment, overvoltage signals are often closely related to the insulation state, capacitance, inductance, and other electrical performances of the equipment. By analyzing the spectral characteristics of overvoltage signals through FFT, specific frequency components related to the electrical performance of the equipment can be identified. The amplitude and phase changes of these frequency components can reflect electrical performance problems such as insulation aging and capacitance change of the equipment.

[0033] Step 3: Establish a comprehensive evaluation model for the mechanical and electrical states of GIS equipment and train it. Input the processed multi-dimensional data into the trained comprehensive evaluation model for the mechanical and electrical states of GIS equipment, output the evaluation results, and perform joint monitoring of the mechanical-electrical transient characteristics of GIS equipment according to the evaluation results.

[0034] Specifically, the model evaluation process is as follows: Divide the preprocessed multi-dimensional data into a training set, a validation set, and a test set; Use the training set data to train the model, complete the model training, and evaluate the model performance on the validation set data; Input the test set data into the trained model to output the evaluation results.

[0035] Among them, in the insulation performance evaluation, judge whether the insulation performance is normal or there are potential risks according to the insulation state score output by the model; Evaluate the degree of mechanical wear according to the mechanical state score output by the model, and judge the degree of wear of mechanical components and whether maintenance is required; Generate a fault warning according to the abnormal probability output by the model, and prompt the type and location of the fault that occurs.

[0036] In summary, this embodiment provides a method for joint monitoring of the mechanical-electrical transient characteristics of GIS equipment. By real-time monitoring the mechanical-electrical transient characteristic signals of GIS equipment, it can quickly capture the minute changes in the equipment state, issue early warnings in a timely manner, and avoid the development of potential faults. The multi-dimensional data obtained by the time-series and frequency-domain analysis and processing of the present invention can comprehensively reflect the mechanical and electrical states of GIS equipment, including key parameters such as vibration and overvoltage. The established comprehensive evaluation model can fuse multi-dimensional data to achieve more accurate equipment state evaluation, reduce false alarms and missed alarms. Through continuous monitoring and evaluation, preventive maintenance can be carried out before the equipment fails, extending the service life of the equipment and improving the reliability of the equipment.

[0037] Embodiment 2 According to Figure 4 As shown, this embodiment also provides a joint monitoring system for the mechanical-electrical transient characteristics of GIS equipment, including: A signal acquisition module 1 for acquiring the mechanical-electrical transient characteristic signals of GIS equipment; A signal processing module 2 for performing time-series and frequency-domain analysis and processing on the acquired mechanical-electrical transient characteristic signals of GIS equipment to obtain multi-dimensional data; A model evaluation module 3 for establishing a comprehensive evaluation model for the mechanical and electrical states of GIS equipment and training it, inputting the processed multi-dimensional data into the trained comprehensive evaluation model for the mechanical and electrical states of GIS equipment, outputting the evaluation results, and performing joint monitoring of the mechanical-electrical transient characteristics of GIS equipment according to the evaluation results.

[0038] Embodiment 3 The present invention also provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, such as a joint monitoring program for the electromechanical transient characteristics of a GIS device.

[0039] When the processor executes the computer program, the steps of the above-mentioned joint monitoring method for the electromechanical transient characteristics of a GIS device are implemented, for example: Obtain the electromechanical transient characteristic signals of the GIS device; Perform time series and frequency domain analysis on the obtained electromechanical transient characteristic signals of the GIS device to obtain multi-dimensional data; Establish and train a comprehensive evaluation model for the electromechanical state of the GIS device, input the processed multi-dimensional data into the trained comprehensive evaluation model for the electromechanical state of the GIS device, output the evaluation result, and perform joint monitoring of the electromechanical transient characteristics of the GIS device according to the evaluation result.

[0040] Alternatively, when the processor executes the computer program, the functions of each module in the above system are implemented, for example: Signal acquisition module 1, for obtaining the electromechanical transient characteristic signals of the GIS device; Signal processing module 2, for performing time series and frequency domain analysis on the obtained electromechanical transient characteristic signals of the GIS device to obtain multi-dimensional data; Model evaluation module 3, for establishing and training a comprehensive evaluation model for the electromechanical state of the GIS device, inputting the processed multi-dimensional data into the trained comprehensive evaluation model for the electromechanical state of the GIS device, outputting the evaluation result, and performing joint monitoring of the electromechanical transient characteristics of the GIS device according to the evaluation result.

[0041] Exemplarily, the computer program can be divided into one or more modules / units, and the one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program in the mobile terminal.

[0042] For example, the computer program can be divided into signal acquisition module 1, signal processing module 2, and model evaluation module 3; The specific functions of each module are as follows: Signal acquisition module 1, for obtaining the electromechanical transient characteristic signals of the GIS device; The signal processing module 2 is used to perform time series and frequency domain analysis on the obtained GIS device mechanical and electrical transient characteristic signals to obtain multi-dimensional data; The model evaluation module 3 is used to establish and train a comprehensive evaluation model for the mechanical and electrical state of the GIS device, input the processed multi-dimensional data into the trained comprehensive evaluation model for the mechanical and electrical state of the GIS device, output the evaluation result, and perform joint monitoring of the mechanical and electrical transient characteristics of the GIS device according to the evaluation result.

[0043] The mobile terminal can be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The mobile terminal may include, but is not limited to, a processor and a memory.

[0044] The processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the mobile terminal, and connects various parts of the entire mobile terminal through various interfaces and lines.

[0045] The memory may be used to store the computer program and / or module. The processor realizes various functions of the mobile terminal by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory.

[0046] The memory may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area may store data created according to the use of the mobile phone (such as audio data, a phone book, etc.). In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one magnetic disk storage device, a flash memory device, or other volatile solid state storage devices.

[0047] Embodiment 4 The present invention also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps of the joint monitoring method for the electromechanical transient characteristics of a GIS device are implemented.

[0048] If the modules / units integrated in the mobile terminal are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0049] Based on such understanding, all or part of the processes in the above method of the present invention can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above aggregation reinforcement learning resource scheduling method can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc.

[0050] The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0051] It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific implementation manners of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A joint monitoring method for electromechanical transient characteristics of GIS equipment, characterized in that: include: Obtain the electromechanical transient characteristic signals of GIS equipment; Perform time series and frequency domain analysis on the acquired electromechanical transient characteristic signals of GIS equipment to obtain multi-dimensional data; A comprehensive evaluation model for the electromechanical status of GIS equipment is established and trained, the processed multidimensional data is input into the trained comprehensive evaluation model for the electromechanical status of GIS equipment, the evaluation results are output, and the joint monitoring of the electromechanical transient characteristics of GIS equipment is performed based on the evaluation results.

2. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 1, characterized in that: The electromechanical transient characteristic signal data of the GIS equipment includes acceleration signals, overvoltage signals and ultrasonic signals.

3. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 1, characterized in that: In the step of performing time series and frequency domain analysis on the acquired electromechanical transient characteristic signals of the GIS equipment to obtain multi-dimensional data, the specific process of performing time series analysis is as follows: The collected electromechanical transient characteristic signals of GIS equipment are subjected to denoising, interpolation and normalization processing in turn; Determine a reference signal, perform timing alignment on other signals based on the reference signal, and calculate the time difference between various signals based on the timing alignment; The synchronization of each signal is evaluated according to the threshold of the time difference. If the time difference of each signal exceeds the set threshold, it is determined that the synchronization is poor and readjustment is performed; The signal amplitude is extracted from each signal with good synchronization, and the signal amplitude is subjected to abnormal detection. The abnormal characteristic data is obtained according to the abnormal detection result, wherein the abnormal characteristic data includes abnormal vibration data or voltage spike data.

4. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 1, characterized in that: In the step of performing time series and frequency domain analysis on the acquired electromechanical transient characteristic signals of the GIS equipment to obtain multidimensional data, the specific process of performing frequency domain analysis is as follows: Preprocess the electromechanical transient characteristic signals of GIS equipment, and input the preprocessed signals into the fast Fourier transform algorithm to convert them into frequency domain signals to obtain the spectrum diagram; The spectrum characteristics of the vibration and overvoltage signals are obtained by analyzing the spectrum diagram, and the relationship between the specific frequency components and the equipment status is obtained by identifying the spectrum characteristics of the vibration and overvoltage signals.

5. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 4, characterized in that: The relationship between the specific frequency component and the device state includes the relationship between the natural frequency of the device and the device structure, the relationship between the vibration characteristic frequency and the state of the moving parts, and the relationship between the electrical performance and the overvoltage signal.

6. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 1, characterized in that: The steps of establishing and training a comprehensive evaluation model for the electromechanical state of GIS equipment, inputting the processed multidimensional data into the trained comprehensive evaluation model for the electromechanical state of GIS equipment, outputting the evaluation results, and performing joint monitoring of the electromechanical transient characteristics of GIS equipment according to the evaluation results are as follows: Divide the preprocessed multidimensional data into training set, validation set and test set; Use the training set data to train the model, complete the model training, and evaluate the model performance on the validation set data; Input the test set data into the trained model and output the evaluation results.

7. A method for joint monitoring of electromechanical transient characteristics of GIS equipment according to claim 6, characterized in that: The evaluation results include insulation performance evaluation, mechanical wear degree evaluation and fault warning; In the insulation performance assessment, the insulation status score output by the model is used to determine whether the insulation performance is normal or has potential risks; Mechanical wear assessment determines the wear degree of mechanical parts and whether maintenance is required based on the mechanical status score output by the model; Fault warning generates fault warning information based on the abnormal probability output by the model, indicating the type and location of the fault.

8. A joint monitoring system for electromechanical transient characteristics of GIS equipment, characterized in that: include: Signal acquisition module, used to obtain electromechanical transient characteristic signals of GIS equipment; The signal processing module is used to perform time series and frequency domain analysis on the acquired electromechanical transient characteristic signals of the GIS equipment to obtain multi-dimensional data; The model evaluation module is used to establish and train a comprehensive evaluation model for the electromechanical status of GIS equipment, input the processed multi-dimensional data into the trained comprehensive evaluation model for the electromechanical status of GIS equipment, output the evaluation results, and conduct joint monitoring of the electromechanical transient characteristics of GIS equipment based on the evaluation results.

9. A mobile terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for joint monitoring of electromechanical transient characteristics of GIS equipment as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for joint monitoring of electromechanical transient characteristics of GIS equipment as described in any one of claims 1 to 7 are implemented.

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