Mechanical jam diagnosis method, device, equipment, medium and product

Abstract

The invention provides a mechanical jam diagnosis method, device and equipment, a medium and a product. The method comprises the following steps: firstly, acquiring a torque time curve and a corner time curve of the high-voltage isolation switch in an operation process; dividing the corner time curve into a plurality of corner intervals according to a plurality of preset corner angles to obtain corner data corresponding to each corner interval; then, torque data corresponding to the corner intervals are determined based on the starting and ending moments corresponding to the corner intervals and the torque-time curve; then, for each corner interval, according to the corner data and the torque data corresponding to the corner interval, determining torque corner data information corresponding to the corner interval; and finally, according to the torque rotation angle data information corresponding to the rotation angle interval, the standard torque rotation angle data information corresponding to the rotation angle interval and a plurality of preset values, the mechanical jam fault of the high-voltage isolation switch is determined, so that the efficiency of diagnosing the mechanical jam fault of the high-voltage isolation switch is improved, and the operation and maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment testing, and in particular to a mechanical jam diagnosis method, device, equipment, medium and product. Background Art

[0002] High-voltage disconnectors are one of the most widely used switchgear in substations. However, most high-voltage disconnectors are exposed to outdoor environments and are susceptible to corrosion, dust accumulation, and lubrication failure, which can easily cause jamming, abnormal opening and closing, and equipment failure, which seriously threatens the safety of the power grid. Therefore, timely monitoring and maintenance of mechanical jamming failures of high-voltage disconnectors is crucial.

[0003] At present, the diagnosis method for mechanical jamming of high-voltage disconnectors is mainly to troubleshoot and maintain them through subjective experience and technical ability of staff. Specifically, operation and maintenance personnel usually conduct regular inspections, observe the appearance of disconnectors, test their opening and closing states manually or electrically, and judge jamming faults based on operating sound, vibration, temperature and other sensory factors.

[0004] However, the existing methods for diagnosing mechanical jamming of high-voltage disconnectors have the problems of long detection cycle and inability to monitor in real time. Summary of the invention

[0005] The embodiments of the present application provide a mechanical jam diagnosis method, device, equipment, medium and product to solve the problems of long detection cycle and inability to monitor in real time in the mechanical jam diagnosis method of high-voltage disconnect switches in the prior art.

[0006] In a first aspect, an embodiment of the present application provides a method for diagnosing a mechanical jam, comprising:

[0007] Obtaining a torque time curve and an angle time curve of the high-voltage disconnector during operation, wherein the operation process is a closing process or an opening process;

[0008] According to a plurality of preset turning angles, the turning angle time curve is divided into a plurality of turning angle intervals, and the turning angle data corresponding to each of the turning angle intervals are obtained;

[0009] Determining torque data corresponding to each of the rotation angle intervals based on the start and end times corresponding to the rotation angle intervals and the torque time curve;

[0010] For each of the rotation angle intervals, according to the rotation angle data and the torque data corresponding to the rotation angle interval, determine the torque angle data information corresponding to the rotation angle interval, wherein the torque angle data information is the correlation coefficient and the area value between the rotation angle data and the torque data;

[0011] A mechanical jam fault of the high-voltage disconnect switch is determined based on the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values.

[0012] In a possible implementation manner, for each of the rotation angle intervals, determining the torque angle data information corresponding to the rotation angle interval according to the rotation angle data and torque data corresponding to the rotation angle interval includes:

[0013] Determining an average value of the angle data and an average value of the torque data corresponding to the angle interval according to the angle data and the torque data corresponding to the angle interval;

[0014] Determining a correlation coefficient between the rotation angle data and the torque data corresponding to the rotation angle interval according to the rotation angle data and the torque data corresponding to the rotation angle interval and an average value of the rotation angle data and the torque data corresponding to the rotation angle interval;

[0015] Integrating the rotation angle data and the torque data corresponding to the rotation angle interval to determine an area value between the rotation angle data and the torque data corresponding to the rotation angle interval;

[0016] The torque angle data information corresponding to the angle interval is determined according to the correlation coefficient and the area value.

[0017] In a possible implementation manner, determining the mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values ​​includes:

[0018] determining an area difference corresponding to the rotation angle interval according to an area value in the standard torque rotation angle data information corresponding to the rotation angle interval and an area value in the torque rotation angle data information corresponding to the rotation angle interval;

[0019] Determine the ratio of the area difference corresponding to the rotation angle interval to the area value in the torque angle data information corresponding to the rotation angle interval as the area ratio corresponding to the rotation angle interval;

[0020] Determine the correlation coefficient difference corresponding to the rotation angle interval according to the correlation coefficient in the standard torque rotation angle data information corresponding to the rotation angle interval and the correlation coefficient in the torque rotation angle data information corresponding to the rotation angle interval;

[0021] Determine the correlation coefficient ratio corresponding to the angle interval by dividing the correlation coefficient difference corresponding to the angle interval and the ratio of the correlation coefficient corresponding to the angle interval;

[0022] A mechanical jamming fault of the high-voltage disconnector is determined based on an area ratio corresponding to the rotation angle interval, a correlation coefficient ratio corresponding to the rotation angle interval, and a plurality of preset values.

[0023] In a possible implementation, the multiple corner intervals include a first corner interval, a second corner interval, and a third corner interval, the corner angle in the second corner interval is greater than the corner angle in the first corner interval, and the corner angle in the second corner interval is less than the corner angle in the third corner interval; the multiple preset values ​​include a first preset value, a second preset value, and a third preset value;

[0024] The determining of the mechanical jamming fault of the high-voltage disconnector according to the area ratio corresponding to the rotation angle interval, the correlation coefficient ratio corresponding to the rotation angle interval and a plurality of preset values ​​comprises:

[0025] If the area ratio corresponding to the third rotation angle interval is greater than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is less than the second preset value, it is determined that the balance spring of the high-voltage disconnector has a weakness fault;

[0026] If the area ratio corresponding to the third rotation angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is greater than the second preset value, it is determined that the balance spring of the high-voltage disconnector is working normally.

[0027] In a possible implementation, the method further includes:

[0028] If the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval, and the correlation coefficient ratio corresponding to the third angle interval are all smaller than the first preset value, and the area ratio corresponding to the second angle interval and the correlation coefficient ratio corresponding to the second angle interval are both smaller than the third preset value, it is determined that there is a hysteresis in the working state of the high-voltage disconnector.

[0029] In a possible implementation manner, after determining the mechanical jam type of the high-voltage disconnector, the method further includes:

[0030] According to the mechanical jam type of the high-voltage disconnector, a processing suggestion corresponding to the mechanical jam type is output.

[0031] In a second aspect, an embodiment of the present application provides a mechanical jam diagnosis device, comprising:

[0032] An acquisition module, used to acquire a torque time curve and an angle time curve of the high-voltage disconnector during operation, wherein the operation process is a closing process or an opening process;

[0033] A division module, used for dividing the turning angle time curve into a plurality of turning angle intervals according to a plurality of preset turning angles, and obtaining the turning angle data corresponding to each of the turning angle intervals;

[0034] A first determination module, configured to determine the torque data corresponding to each of the rotation angle intervals based on the start and end times corresponding to the rotation angle intervals and the torque time curve;

[0035] a second determining module, for each of the angle intervals, determining torque angle data information corresponding to the angle interval according to the angle data and torque data corresponding to the angle interval, wherein the torque angle data information is a correlation coefficient and an area value between the angle data and the torque data;

[0036] The third determination module is used to determine the mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval and a plurality of preset values.

[0037] In a possible implementation manner, the second determining module is specifically configured to:

[0038] Determining an average value of the angle data and an average value of the torque data corresponding to the angle interval according to the angle data and the torque data corresponding to the angle interval;

[0039] Determining a correlation coefficient between the rotation angle data and the torque data corresponding to the rotation angle interval according to the rotation angle data and the torque data corresponding to the rotation angle interval and an average value of the rotation angle data and the torque data corresponding to the rotation angle interval;

[0040] Integrating the rotation angle data and the torque data corresponding to the rotation angle interval to determine an area value between the rotation angle data and the torque data corresponding to the rotation angle interval;

[0041] The torque angle data information corresponding to the angle interval is determined according to the correlation coefficient and the area value.

[0042] In a possible implementation manner, the third determining module is specifically configured to:

[0043] determining an area difference corresponding to the rotation angle interval according to an area value in the standard torque rotation angle data information corresponding to the rotation angle interval and an area value in the torque rotation angle data information corresponding to the rotation angle interval;

[0044] Determine the ratio of the area difference corresponding to the rotation angle interval to the area value in the torque angle data information corresponding to the rotation angle interval as the area ratio corresponding to the rotation angle interval;

[0045] Determine the correlation coefficient difference corresponding to the rotation angle interval according to the correlation coefficient in the standard torque rotation angle data information corresponding to the rotation angle interval and the correlation coefficient in the torque rotation angle data information corresponding to the rotation angle interval;

[0046] Determine the correlation coefficient ratio corresponding to the angle interval by dividing the correlation coefficient difference corresponding to the angle interval and the ratio of the correlation coefficient corresponding to the angle interval;

[0047] A mechanical jam fault of the high-voltage disconnector is determined based on an area ratio corresponding to the rotation angle interval, a correlation coefficient ratio corresponding to the rotation angle interval, and a plurality of preset values.

[0048] In a possible implementation, the multiple corner intervals include a first corner interval, a second corner interval, and a third corner interval, the corner angle in the second corner interval is greater than the corner angle in the first corner interval, and the corner angle in the second corner interval is less than the corner angle in the third corner interval; the multiple preset values ​​include a first preset value, a second preset value, and a third preset value;

[0049] The third determination module is specifically used to:

[0050] If the area ratio corresponding to the third rotation angle interval is greater than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is less than the second preset value, it is determined that the balance spring of the high-voltage disconnector has a weakness fault;

[0051] If the area ratio corresponding to the third rotation angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is greater than the second preset value, it is determined that the balance spring of the high-voltage disconnector is working normally.

[0052] In a possible implementation manner, the third determining module is further configured to:

[0053] If the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval, and the correlation coefficient ratio corresponding to the third angle interval are all smaller than the first preset value, and the area ratio corresponding to the second angle interval and the correlation coefficient ratio corresponding to the second angle interval are both smaller than the third preset value, it is determined that there is a hysteresis in the working state of the high-voltage disconnector.

[0054] In a possible implementation manner, the device further includes an output module, and after determining the mechanical jam type of the high-voltage disconnector, the output module is used to:

[0055] According to the mechanical jam type of the high-voltage disconnector, a processing suggestion corresponding to the mechanical jam type is output.

[0056] In a third aspect, an embodiment of the present application provides an electronic device, including: a memory, a processor;

[0057] The memory stores computer-executable instructions;

[0058] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0059] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementations of the first aspect.

[0060] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementation methods of the first aspect.

[0061] The mechanical jam diagnosis method, device, equipment, medium and product provided in the embodiments of the present application first obtain the torque time curve and the angle time curve of the high-voltage disconnector during operation; then divide the angle time curve into multiple angle intervals according to multiple preset angle angles, and obtain the angle data corresponding to each angle interval; then determine the torque data corresponding to each angle interval based on the start and end times and the torque time curve corresponding to the angle interval. At this point, by obtaining the angle data and torque data corresponding to multiple angle intervals, the working state of each angle interval can be accurately evaluated in the subsequent fault diagnosis stage. This subdivision allows for more sensitive capture of abnormal operating conditions during fault diagnosis and equipment performance evaluation; then, for each angle interval, the torque angle data information corresponding to the angle interval is determined based on the angle data and torque data corresponding to the angle interval; finally, based on the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and multiple preset values, the mechanical jamming fault of the high-voltage disconnector is determined, thereby achieving rapid diagnosis of the high-voltage disconnector jamming fault and avoiding reliance on traditional manual inspection methods, thereby improving the efficiency of diagnosing the mechanical jamming fault of the high-voltage disconnector and reducing the equipment operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0063] Figure 1 A system schematic diagram of a mechanical jam diagnosis system provided in an embodiment of the present application;

[0064] Figure 2 Schematic diagram of the process of the mechanical jam diagnosis method provided in the embodiment of the present application Figure 1 ;

[0065] Figure 3 A schematic diagram of the structure of a torque signal measurement circuit provided in an embodiment of the present application;

[0066] Figure 4 Schematic diagram of the process of the mechanical jam diagnosis method provided in the embodiment of the present application Figure 2 ;

[0067] Figure 5 A schematic diagram of the structure of a mechanical jam diagnosis device provided in an embodiment of the present application;

[0068] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0069] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0070] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0071] High-voltage disconnectors are one of the most widely used switchgear in substations. However, most high-voltage disconnectors are exposed to outdoor environments and are susceptible to corrosion, dust accumulation, and lubrication failure, which can easily cause jamming, abnormal opening and closing, and equipment failure, which seriously threatens the safety of the power grid. Therefore, timely monitoring and maintenance of mechanical jamming failures of high-voltage disconnectors is crucial.

[0072] At present, the diagnosis method for mechanical jamming of high-voltage disconnectors is mainly to troubleshoot and maintain them through subjective experience and technical ability of staff. Specifically, operation and maintenance personnel usually conduct regular inspections, observe the appearance of disconnectors, test their opening and closing states manually or electrically, and judge jamming faults based on operating sound, vibration, temperature and other sensory factors.

[0073] However, the existing technology for diagnosing mechanical jams of high-voltage disconnectors has the problems of long detection cycle and inability to monitor in real time, which results in the disconnector being discovered only when the mechanical jam faults accumulate to a serious level, affecting the safe operation of the power grid.

[0074] Based on this, the present application proposes a mechanical jamming diagnosis method. Since the traditional mechanical jamming diagnosis method of the high-voltage disconnector usually relies on manual experience for troubleshooting, the maintenance personnel need to check whether the mechanical structure of the high-voltage disconnector is jammed one by one, which makes the fault diagnosis time-consuming and labor-intensive, and inefficient. At the same time, manual inspection can often only be carried out after the equipment has an obvious fault, and early warning cannot be achieved, which easily leads to the expansion of the fault and affects the stability of the power grid. Therefore, if the working data of the high-voltage disconnector itself can be monitored in real time, and the location and type of the fault can be derived by combining the data analysis method, the efficiency of mechanical jamming fault diagnosis can be improved, the fault rate can be reduced, the equipment failure rate can be reduced, thereby reducing maintenance costs and improving system safety and stability; specifically, since the angle data can reflect the motion state of the high-voltage disconnector, that is, the angle change of the closing or opening state, further, according to the preset angle, the closing or opening state of the high-voltage disconnector can be divided into different operating stages, so as to more accurately confirm the location of the fault. On the other hand, the torque data reflects the mechanical resistance required to drive the switch, so the mechanical jamming fault of the high-voltage disconnector can be more accurately judged by combining the angle data and the torque data.

[0075] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0076] A schematic diagram of a mechanical jam diagnosis system provided in an embodiment of the present application; Figure 1 As shown, the fault diagnosis system includes a spindle torque measuring component, a torque conversion signal measuring component, a torque information diagnosis and analysis component, a rotation angle measuring component, a rotation angle analysis component, and a fault diagnosis component.

[0077] It should be noted that the spindle torque measurement component is composed of a base, a metal resistance strain wire, a lead, a cover sheet, etc., wherein the base is a rectangular plate structure, and its function is to hold the metal resistance strain wire and the lead; the metal resistance strain wire, whose function is that when the spindle is strained by the force, the metal resistance strain wire will be strained accordingly, thereby changing its resistance value; the lead is used to connect the metal resistance strain wire with the torque conversion signal measurement component to realize the output of the resistance value; and the cover sheet is used to cover the metal resistance strain wire to protect it.

[0078] Specifically, the main shaft torque measuring component is pasted at a designated position on the main shaft surface of the high-voltage disconnector to be measured. When the main shaft to be measured is strained by the applied force, the main shaft torque measuring component also undergoes the same mechanical deformation, thereby causing the resistance value of the internal components of the main shaft torque measuring component to change; then, the resistance value signal output by the main shaft torque measuring component is temperature compensated and other interference factors are eliminated through the torque conversion signal measuring component, and further input into the torque information diagnosis and analysis component for analysis and conversion; the torque information diagnosis and analysis component, whose function is to convert the corresponding torque value according to the input resistance value, and then further draw the torque time curve of the main shaft of the entire opening and closing process of the high-voltage disconnector; the angle measurement component, whose function is to use the angle sensor to measure the angle corresponding to each time of the disconnector during the opening or closing process; the angle analysis component, whose function is to generate the corresponding angle time curve according to the measured angle information; the fault diagnosis component, whose function is to input the torque time curve and angle time curve obtained by the above components, and comprehensively judge the mechanical jamming fault corresponding to the high-voltage disconnector.

[0079] Figure 2 Schematic diagram of the process of the mechanical jam diagnosis method provided in the embodiment of the present application Figure 1 ;like Figure 2 As shown, the method includes:

[0080] S201. Obtain a torque time curve and a rotation angle time curve of the high-voltage disconnector during operation.

[0081] Among them, the operation process is a closing process or an opening process; the torque time curve is a curve drawn by the torque information diagnosis and analysis component according to the input resistance value and the corresponding torque value; the angle time curve is a curve drawn by the angle analysis component according to the measured angle information.

[0082] It should be noted that the specific steps of calculating the corresponding torque value according to the input resistance value using the torque information diagnosis and analysis component are as follows:

[0083] First, according to the principles of materials science, the torque calculation formula is:

[0084]

[0085] Where, M is the torque borne by the transmission shaft; is the shear stress borne by the transmission shaft; W is the torsional section coefficient of the transmission shaft.

[0086] For a hollow transmission shaft (such as a steel tube), the torsional section coefficient can be expressed as:

[0087]

[0088]

[0089] Among them, D is the outer diameter of the hollow transmission shaft; d is the inner diameter of the hollow transmission shaft; a is the ratio of the inner and outer diameters of the hollow transmission shaft; and W is the torsional section coefficient of the transmission shaft.

[0090] Furthermore, according to Hooke's law, shear stress is proportional to shear strain, and its calculation formula is:

[0091]

[0092]

[0093]

[0094] in, is the change in the resistance value of the metal wire; R is the original resistance value of the metal wire;

[0095] It is the strain sensitivity coefficient of metal materials, which is basically a constant within the elastic limit; is the shear stress on the transmission shaft; E is the elastic modulus of the transmission shaft material; is the Poisson's ratio of the drive shaft material; M is the torque borne by the drive shaft; D is the outer diameter of the hollow drive shaft; a is the ratio of the inner and outer diameters of the hollow drive shaft.

[0096] It should be understood that, as long as the change in resistance value can be measured through the above formula, the torque value of the hollow transmission shaft can be calculated.

[0097] Optionally, in practical applications, since the resistance value of the strain wire is greatly affected by the ambient temperature, and the resistance change caused by the ambient temperature change is almost of the same order of magnitude as the resistance change caused by the specimen strain, a large measurement error will occur. Therefore, when measuring the resistance value, the embodiment of the present application connects the resistance corresponding to the spindle torque measurement component according to the bridge conversion circuit. The specific connection method is as follows: Figure 3 As shown, the embodiments of the present application will not be described in detail here.

[0098] It can be understood that the torque time curve and the angle time curve measured and calculated by the above method can more accurately reflect the mechanical state of the high-voltage disconnector during operation, and provide an effective data basis for the subsequent mechanical jam fault diagnosis of the high-voltage disconnector.

[0099] S202: Divide the turning angle time curve into a plurality of turning angle intervals according to a plurality of preset turning angles, and obtain turning angle data corresponding to each turning angle interval.

[0100] Among them, the multiple corner intervals include a first corner interval, a second corner interval and a third corner interval, the corner angle in the second corner interval is greater than the corner angle in the first corner interval, and the corner angle in the second corner interval is smaller than the corner angle in the third corner interval.

[0101] It should be noted that during the opening or closing process, the size of the angle indicates the working state of the high-voltage disconnector. For example, 0° usually indicates a fully closed state, and a specific angle (such as 90° or other calibrated angles) indicates a fully open state; therefore, the angle time curve can be divided into multiple angle intervals according to multiple preset angle angles, and the angle data corresponding to each angle interval can be obtained.

[0102] It is understandable that according to the image features of the angle time curve (i.e., multiple preset angles), the operation process can be divided into three processes: the starting interval (i.e., the first angle interval), the rotation interval (i.e., the second angle interval), and the closing interval (i.e., the third angle interval); among them, the starting interval mainly focuses on the initial movement state of the switch, checking whether there is a slow rotation or jamming phenomenon; the rotation interval mainly observes whether the movement is smooth and whether the torque is normal; the closing interval focuses on the changes near the end of the switch operation, detecting whether there is jamming, torque abnormality and other problems. In this way, maintenance personnel can monitor the angle data of each interval in real time, and make more accurate judgments and decisions based on the real-time data of each interval, and timely discover and deal with potential faults. For example, if the problem is concentrated in the closing interval, some specific parts may need to be replaced; if it is an abnormality in the rotation interval, lubrication or adjustment may be required. Zoning analysis helps to formulate accurate maintenance plans and avoid excessive maintenance or mis-maintenance.

[0103] S203 . Determine torque data corresponding to each rotation angle interval based on the start and end times and torque time curves corresponding to the rotation angle intervals.

[0104] For example, assuming that the operation process is divided into the following three intervals by the angle time curve: the first angle interval: the angle increases from 0° to 30°, the angle starts at 0 seconds (s) and ends at 5s, the second angle interval: the angle increases from 30° to 90°, the start time is 5s, the end time is 15s, and the third angle interval: the angle increases from 90° to 120°, the start time is 15s, and the end time is 20s; then the torque data corresponding to each angle interval obtained according to the torque time curve are: the torque data of the first angle interval is obtained from the torque time curve The torque data of the 0s-5s interval is extracted from the torque time curve (for example: [5 Newton meters (Nm), 10Nm, 15Nm, 20Nm, 25Nm]), the torque data of the second angle interval is the torque data of the 5s-15s interval extracted from the torque time curve (for example: [30Nm, 35Nm, 45Nm, 55Nm, 70Nm, 85Nm]), and the torque data of the third angle interval is the torque data of the 15s-20s interval extracted from the torque time curve (for example: [90Nm, 100Nm, 110Nm, 120Nm, 130Nm]).

[0105] It can be understood that through detailed analysis based on the angle interval and torque time curve, not only can the torque data of each interval be accurately extracted, but also precise support can be provided in fault diagnosis and equipment maintenance, so as to effectively discover potential problems and improve the reliability and maintenance efficiency of high-voltage disconnectors.

[0106] S204 . For each turning angle interval, determine torque angle data information corresponding to the turning angle interval according to the turning angle data and torque data corresponding to the turning angle interval.

[0107] Among them, the torque angle data information is the correlation coefficient and area value between the angle data and the torque data; the correlation coefficient can be a Pearson correlation coefficient, a Spearman correlation coefficient, or a Kendall correlation coefficient. In practical applications, the corresponding correlation coefficient can be selected according to the specific situation, and this embodiment does not make any specific restrictions here.

[0108] It should be noted that the correlation coefficient between the angle data and the torque data can filter out the numerical changes caused by individual differences in equipment, reflect whether the changing trends of torque and angle are consistent, and avoid misjudgment caused by measurement noise, friction changes, individual differences in equipment, etc.; and the area value between the angle data and the torque data can reflect the total energy consumed by the high-voltage disconnector to close or open the switch, thereby judging whether there is abnormal resistance in the high-voltage disconnector.

[0109] It can be understood that by determining the correlation coefficient and area value between the angle data and the torque data and performing a comprehensive analysis, mechanical abnormalities can be diagnosed more accurately, detection accuracy and stability can be improved, and the status assessment of the disconnector can be made more reliable.

[0110] In one achievable manner, the step of determining the torque angle data information corresponding to the angle interval is specifically as follows:

[0111] First, based on the angle data and torque data corresponding to the angle interval, the average angle data and the average torque data corresponding to the angle interval are determined; then, based on the angle data and torque data corresponding to the angle interval and the average angle data and the average torque data corresponding to the angle interval, the correlation coefficient between the angle data and the torque data corresponding to the angle interval is determined; then, the angle data and the torque data corresponding to the angle interval are integrated to determine the area value between the angle data and the torque data corresponding to the angle interval; finally, based on the correlation coefficient and the area value, the torque angle data information corresponding to the angle interval is determined.

[0112] For example, taking the Pearson correlation coefficient as an example, suppose there are the following data points:

[0113]

[0114] The specific formula of Pearson correlation coefficient is:

[0115]

[0116] Where r is the Pearson correlation coefficient; T is the torque; is the average torque value; is the turning angle; is the average turning angle; n is the total number of data points.

[0117] According to the data points in the above table and the specific formula of the Pearson correlation coefficient, the correlation coefficient r can be obtained to be 1; further, for the area value between the angle data and the torque data, the integral formula is usually used for calculation, but in actual operation, if there are discrete data points, the trapezoidal rule can also be used for approximate calculation. The specific formula is:

[0118]

[0119] Where S is the area between the angle data and the torque data; T is the torque; is the rotation angle; n is the total number of data points.

[0120] According to the data points in the above table and the specific formula of the trapezoidal rule, the area value S can be obtained as 12; accordingly, the torque angle data information corresponding to each angle interval can be calculated using the above formula. For example, for the high-voltage disconnector to be tested, the correlation coefficient between the angle data and the torque data corresponding to the first angle interval can be expressed as r1 测 、S1 测 The correlation coefficient between the rotation angle data and the torque data corresponding to the second rotation angle interval can be expressed as r2 测 、S2 测 The correlation coefficient between the rotation angle data and the torque data corresponding to the third rotation angle interval can be expressed as r3 测 、S3 测 .

[0121] S205. Determine a mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values.

[0122] Among them, multiple preset values ​​include a first preset value, a second preset value and a third preset value. The preset value can be obtained through experience or through experiments. The specific preset value can be set according to actual conditions, and the embodiment of the present application does not make specific restrictions here.

[0123] In one feasible method, first, based on the area value in the standard torque angle data information corresponding to the angle interval and the area value in the torque angle data information corresponding to the angle interval, the area difference corresponding to the angle interval is determined; then, the ratio of the area difference corresponding to the angle interval and the area value in the torque angle data information corresponding to the angle interval is determined as the area ratio corresponding to the angle interval; then, based on the correlation coefficient in the standard torque angle data information corresponding to the angle interval and the correlation coefficient in the torque angle data information corresponding to the angle interval, the correlation coefficient difference corresponding to the angle interval is determined; further, the ratio of the correlation coefficient difference corresponding to the angle interval and the correlation coefficient corresponding to the angle interval is determined as the correlation coefficient ratio corresponding to the angle interval; finally, based on the area ratio corresponding to the angle interval, the correlation coefficient ratio corresponding to the angle interval and multiple preset values, the mechanical jamming fault of the high-voltage disconnector is determined.

[0124] For example, taking the third rotation angle interval as an example, assuming that the area value in the standard torque rotation angle data information corresponding to the third rotation angle interval is S3 标 The area value of the torque angle data information corresponding to the third angle interval is S3 测 , we can further determine the area difference S3 corresponding to the third corner interval 差 For: S3 差 =S3 标 -S3测 ; The area ratio corresponding to the third corner interval S3 比 = S3 差 / S3 测 Similarly, the correlation coefficient difference r3 corresponding to the third turning angle interval can be determined 差 is: r3 差 =r3 标 -r3 测 ; The correlation coefficient ratio r3 corresponding to the third turning angle interval 比 = r3 差 / r3 测 ; The calculation method for the correlation coefficient ratios corresponding to other corner intervals and the area ratios corresponding to the third corner interval is the same as the above calculation method, and the embodiment of the present application does not make any specific restrictions here.

[0125] It is understandable that by comparing the torque angle data information corresponding to the measured angle interval with the torque angle data information corresponding to the angle interval of the high-voltage disconnector under the qualified equipment, that is, the standard state, the health status of the disconnector transmission mechanism can be reflected in real time, effectively avoiding equipment failures caused by accumulated jams. Compared with the traditional manual inspection method, this method can effectively avoid the deterioration of high-voltage disconnector faults, thereby reducing equipment downtime and maintenance costs, significantly improving the safety and reliability of high-voltage disconnector operation, and extending the service life of the equipment.

[0126] The mechanical jam diagnosis method provided in the embodiment of the present application first obtains the torque time curve and the angle time curve of the high-voltage disconnector during operation; then divides the angle time curve into multiple angle intervals according to multiple preset angle angles, and obtains the angle data corresponding to each angle interval; then determines the torque data corresponding to each angle interval based on the start and end times and the torque time curve corresponding to the angle interval. At this point, by obtaining the angle data and torque data corresponding to multiple angle intervals, the working state of each angle interval can be accurately evaluated in the subsequent fault diagnosis stage. This subdivision makes During fault diagnosis and equipment performance evaluation, abnormal operating conditions can be captured more sensitively; then, for each angle interval, the torque angle data information corresponding to the angle interval is determined according to the angle data and torque data corresponding to the angle interval; finally, the mechanical jamming fault of the high-voltage disconnector is determined according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and multiple preset values, to achieve rapid diagnosis of the jamming fault of the high-voltage disconnector, avoid relying on traditional manual inspection methods, thereby improving the efficiency of mechanical jamming fault diagnosis of the high-voltage disconnector and reducing equipment operation and maintenance costs.

[0127] In one achievable manner, after a mechanical jam fault of the high-voltage disconnector is determined, a processing suggestion corresponding to the type of mechanical jam may be output.

[0128] It is understandable that after determining the mechanical jam failure of the high-voltage disconnector, by outputting the corresponding processing suggestions, the operation and maintenance personnel do not need to conduct additional analysis of the cause of the failure, which greatly shortens the time for manual troubleshooting and judgment.

[0129] Figure 3 A schematic diagram of the structure of the torque signal measurement circuit provided in the embodiment of the present application is shown in FIG. Figure 3 As shown, the schematic diagram includes: four resistor arm groups R1, R2, R3, R4, an input voltage Ui and an output voltage U0.

[0130] It should be noted that by connecting the measured resistor according to the bridge conversion circuit, when the resistance increments of adjacent arms of the bridge are opposite and the resistance increments of the relative arms are the same, the bridge output increases; when the resistance increments of adjacent arms of the bridge are the same and the resistance increments of the relative arms are opposite, the bridge output decreases. This characteristic is the addition and subtraction characteristic of the bridge. By using this characteristic, the sensitivity can be improved, temperature compensation can be achieved, and interference factors can be eliminated, so that the output signal has good linearity and anti-interference ability, which is suitable for high-voltage disconnector spindle torque monitoring.

[0131] Figure 4 Schematic diagram of the process of the mechanical jam diagnosis method provided in the embodiment of the present application Figure 2 ;like Figure 4 As shown, in this embodiment Figure 2 Based on the embodiment, a method for determining a mechanical jamming fault of a high-voltage disconnector is described in detail, and the method includes:

[0132] S401. If the area ratio corresponding to the third rotation angle interval is greater than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is less than the second preset value, it is determined that the balance spring of the high-voltage disconnector has a weakness fault.

[0133] It should be noted that since the third rotation angle interval corresponds to the final stage of the closing process, that is, the stage when the switch is close to being fully closed, this is the key moment to determine whether mechanical jamming exists. At this stage, the transmission mechanism of the disconnector needs to overcome the maximum resistance to successfully close the switch. If jamming occurs at this time, it usually manifests as a large resistance change or abnormal torque fluctuation. Therefore, the area ratio corresponding to the third rotation angle interval can directly reflect the overall mechanical resistance and its changes during the closing process, and then determine whether the balance spring is normal and whether the transmission joint is jammed.

[0134] For ease of understanding, the present application embodiment uses the example in S205 as an example to illustrate that the area ratio corresponding to the third corner interval is S3比 , the correlation coefficient ratio corresponding to the third turning angle interval is r3 比 , the first preset value is 15%, the second preset value is 2.1; then first determine S3 比 Is it greater than the first preset value 15% and r3 比 Less than the second preset value 2.1, if S3 比 Greater than the first preset value by 15% and r3 比 If it is less than the second preset value 2.1, it indicates that the spring energy storage capacity of the high-voltage disconnector begins to decrease, and the coupling relationship between torque and angle deviates, then it can be determined that the balance spring of the high-voltage disconnector has a weakness fault.

[0135] Optionally, if it is necessary to further determine the degree of weakness of the balance spring of the high-voltage disconnector, other preset values ​​can be further set to determine the correlation coefficient ratio and area value corresponding to the third rotation angle interval; for example, if S3 比 Its value is greater than 15%, r3 比 If it is less than 2.1 and greater than 1.5, it can be determined that the balance spring of the high-voltage disconnector is slightly weak and needs to be paid more attention; S3 比 Its value is greater than 15% and less than 45%, r3 比 If it is less than 1.5 and greater than 1.0, it can be determined that the balance spring of the high-voltage disconnector is moderately weak and needs to be dealt with in time during the maintenance cycle; S3 比 Its value is greater than 45%, r3 比 If it is less than 1.0, it can be determined that the balance spring of the high-voltage disconnector is severely weakened and needs to be dealt with immediately.

[0136] S402: If the area ratio corresponding to the third rotation angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is greater than the second preset value, it is determined that the balance spring of the high-voltage disconnector is working normally.

[0137] It should be understood that if the area ratio corresponding to the third angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third angle interval is greater than the second preset value, it indicates that the area value change corresponding to the third angle interval belongs to the normal individual difference range of equipment, and the correlation coefficient ratio corresponding to the third angle interval still maintains a high linear correlation, and the spring stiffness is good, which means that the balance spring of the high-voltage disconnector is working normally.

[0138] In one achievable manner, the method of determining the mechanical jamming fault of the high-voltage disconnector further includes:

[0139] If the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval and the correlation coefficient ratio corresponding to the third angle interval are all smaller than the first preset value, and the area ratio corresponding to the second angle interval and the correlation coefficient ratio corresponding to the second angle interval are both smaller than the third preset value, then it is determined that there is a hysteresis in the working state of the high-voltage disconnector.

[0140] It should be noted that since the first angle interval and the third angle interval respectively correspond to the start and stop stages of the high-voltage disconnector, by judging whether the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval, and the correlation coefficient ratio corresponding to the third angle interval are all less than the first preset value, it can be judged whether there is a hysteresis in the output force of the high-voltage disconnector during the start-stop stages, and whether the torque angle curve in the startup stage deviates from the standard torque angle curve; and the second angle interval corresponds to the uniform speed operation stage of the high-voltage disconnector. By judging the correlation coefficient ratio and area value corresponding to this interval, it can be further determined whether there is a hysteresis in the working state of the high-voltage disconnector.

[0141] It can be understood that in this way, the mechanical hysteresis phenomenon can be transformed from a qualitative description to a quantitative analysis, thereby improving the accuracy of the mechanical dryness diagnosis system in detecting equipment hysteresis phenomena and reducing the probability of equipment failure.

[0142] Figure 5 A schematic diagram of the structure of a mechanical jam diagnosis device provided in an embodiment of the present application; Figure 5 As shown, the mechanical jam diagnosis device 50 provided in this embodiment includes: an acquisition module 501 , a division module 502 , a first determination module 503 , a second determination module 505 and a third determination module 505 .

[0143] An acquisition module 501 is used to acquire a torque time curve and an angle time curve of the high-voltage disconnector during operation, where the operation process is a closing process or an opening process;

[0144] A division module 502 is used to divide the turning angle time curve into a plurality of turning angle intervals according to a plurality of preset turning angles, and obtain the turning angle data corresponding to each turning angle interval;

[0145] A first determination module 503, for determining torque data corresponding to each rotation angle interval based on the start and end times and torque time curves corresponding to the rotation angle intervals;

[0146] A second determination module 504 is used to determine, for each rotation angle interval, torque angle data information corresponding to the rotation angle interval according to the rotation angle data and torque data corresponding to the rotation angle interval, where the torque angle data information is a correlation coefficient and an area value between the rotation angle data and the torque data;

[0147] The third determination module 505 is used to determine the mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values.

[0148] In a possible implementation manner, the second determining module 504 is specifically configured to:

[0149] Determine the average value of the angle data and the average value of the torque data corresponding to the angle interval according to the angle data and the torque data corresponding to the angle interval;

[0150] Determine a correlation coefficient between the angle data and the torque data corresponding to the angle interval according to the angle data and the torque data corresponding to the angle interval and the average angle data and the torque data corresponding to the angle interval;

[0151] Integrate the rotation angle data and torque data corresponding to the rotation angle interval to determine an area value between the rotation angle data and torque data corresponding to the rotation angle interval;

[0152] According to the correlation coefficient and the area value, the torque angle data information corresponding to the angle interval is determined.

[0153] In a possible implementation manner, the third determining module 505 is specifically configured to:

[0154] Determine an area difference corresponding to the angle interval according to an area value in the standard torque angle data information corresponding to the angle interval and an area value in the torque angle data information corresponding to the angle interval;

[0155] The ratio of the area difference corresponding to the angle interval to the area value in the torque angle data information corresponding to the angle interval is determined as the area ratio corresponding to the angle interval;

[0156] Determine the correlation coefficient difference corresponding to the angle interval according to the correlation coefficient in the standard torque angle data information corresponding to the angle interval and the correlation coefficient in the torque angle data information corresponding to the angle interval;

[0157] The correlation coefficient ratio corresponding to the angle interval is determined by determining the correlation coefficient difference corresponding to the angle interval and the ratio of the correlation coefficient corresponding to the angle interval;

[0158] A mechanical jamming fault of the high-voltage disconnector is determined based on an area ratio corresponding to the rotation angle interval, a correlation coefficient ratio corresponding to the rotation angle interval, and a plurality of preset values.

[0159] In a possible implementation, the plurality of corner intervals include a first corner interval, a second corner interval, and a third corner interval, the corner angle in the second corner interval is greater than the corner angle in the first corner interval, and the corner angle in the second corner interval is less than the corner angle in the third corner interval; the plurality of preset values ​​include a first preset value, a second preset value, and a third preset value;

[0160] The third determining module 505 is specifically used for:

[0161] If the area ratio corresponding to the third rotation angle interval is greater than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is less than the second preset value, it is determined that the balance spring of the high-voltage disconnector has a weakness fault;

[0162] If the area ratio corresponding to the third rotation angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is greater than the second preset value, it is determined that the balance spring of the high-voltage disconnector is working normally.

[0163] In a possible implementation manner, the third determining module 505 is further configured to:

[0164] If the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval and the correlation coefficient ratio corresponding to the third angle interval are all smaller than the first preset value, and the area ratio corresponding to the second angle interval and the correlation coefficient ratio corresponding to the second angle interval are both smaller than the third preset value, then it is determined that there is a hysteresis in the working state of the high-voltage disconnector.

[0165] In a possible implementation, the device further includes an output module, and after determining the mechanical jam type of the high-voltage disconnector, the output module is used to:

[0166] According to the mechanical jam type of the high-voltage disconnector, output the corresponding treatment suggestions for the mechanical jam type.

[0167] The mechanical jam diagnosis device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be described in detail here.

[0168] Figure 6 This is a schematic diagram of the structure of the electronic device provided in this application. Figure 6 As shown, the electronic device 60 provided in this embodiment includes: at least one processor 601 and a memory 602. Optionally, the device 60 also includes a communication component 603. The processor 601, the memory 602 and the communication component 603 are connected via a bus 604.

[0169] In a specific implementation process, at least one processor 601 executes the computer execution instructions stored in the memory 602, so that at least one processor 601 executes the above method.

[0170] The specific implementation process of the processor 601 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0171] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the invention can be directly implemented as a hardware processor, or can be implemented by a combination of hardware and software modules in the processor.

[0172] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0173] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0174] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0175] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0176] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0177] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0178] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0179] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0180] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0181] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0182] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0183] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for diagnosing mechanical jams, characterized in that: include: Obtaining a torque time curve and an angle time curve of the high-voltage disconnector during operation, wherein the operation process is a closing process or an opening process; According to a plurality of preset turning angles, the turning angle time curve is divided into a plurality of turning angle intervals, and the turning angle data corresponding to each of the turning angle intervals are obtained; Determining torque data corresponding to each of the rotation angle intervals based on the start and end times corresponding to the rotation angle intervals and the torque time curve; For each of the rotation angle intervals, according to the rotation angle data and the torque data corresponding to the rotation angle interval, determine the torque angle data information corresponding to the rotation angle interval, wherein the torque angle data information is the correlation coefficient and the area value between the rotation angle data and the torque data; A mechanical jam fault of the high-voltage disconnect switch is determined based on the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values.

2. The method according to claim 1, characterized in that The step of determining the torque angle data information corresponding to each of the angle intervals according to the angle data and torque data corresponding to the angle intervals comprises: Determining an average value of the angle data and an average value of the torque data corresponding to the angle interval according to the angle data and the torque data corresponding to the angle interval; determining a correlation coefficient between the rotation angle data and the torque data corresponding to the rotation angle interval according to the rotation angle data and the torque data corresponding to the rotation angle interval and an average value of the rotation angle data and the torque data corresponding to the rotation angle interval; Integrating the rotation angle data and the torque data corresponding to the rotation angle interval to determine an area value between the rotation angle data and the torque data corresponding to the rotation angle interval; The torque angle data information corresponding to the angle interval is determined according to the correlation coefficient and the area value.

3. The method according to claim 2, characterized in that The determining of the mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval, and a plurality of preset values ​​comprises: determining an area difference corresponding to the rotation angle interval according to an area value in the standard torque rotation angle data information corresponding to the rotation angle interval and an area value in the torque rotation angle data information corresponding to the rotation angle interval; Determine the ratio of the area difference corresponding to the rotation angle interval to the area value in the torque angle data information corresponding to the rotation angle interval as the area ratio corresponding to the rotation angle interval; Determine the correlation coefficient difference corresponding to the rotation angle interval according to the correlation coefficient in the standard torque rotation angle data information corresponding to the rotation angle interval and the correlation coefficient in the torque rotation angle data information corresponding to the rotation angle interval; Determine the correlation coefficient ratio corresponding to the angle interval by dividing the correlation coefficient difference corresponding to the angle interval and the ratio of the correlation coefficient corresponding to the angle interval; A mechanical jam fault of the high-voltage disconnector is determined based on an area ratio corresponding to the rotation angle interval, a correlation coefficient ratio corresponding to the rotation angle interval, and a plurality of preset values.

4. The method according to claim 1 or 3, characterized in that: The multiple corner intervals include a first corner interval, a second corner interval, and a third corner interval, the corner angle in the second corner interval is greater than the corner angle in the first corner interval, and the corner angle in the second corner interval is less than the corner angle in the third corner interval; the multiple preset values ​​include a first preset value, a second preset value, and a third preset value; The determining of the mechanical jamming fault of the high-voltage disconnector according to the area ratio corresponding to the rotation angle interval, the correlation coefficient ratio corresponding to the rotation angle interval and a plurality of preset values ​​comprises: If the area ratio corresponding to the third rotation angle interval is greater than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is less than the second preset value, it is determined that the balance spring of the high-voltage disconnector has a weakness fault; If the area ratio corresponding to the third rotation angle interval is less than the first preset value, and the correlation coefficient ratio corresponding to the third rotation angle interval is greater than the second preset value, it is determined that the balance spring of the high-voltage disconnector is working normally.

5. The method according to claim 4, characterized in that The method further comprises: If the area ratio corresponding to the first angle interval, the area ratio corresponding to the third angle interval, the correlation coefficient ratio corresponding to the first angle interval, and the correlation coefficient ratio corresponding to the third angle interval are all smaller than the first preset value, and the area ratio corresponding to the second angle interval and the correlation coefficient ratio corresponding to the second angle interval are both smaller than the third preset value, it is determined that there is a hysteresis in the working state of the high-voltage disconnector.

6. The method according to any one of claims 1 to 3, characterized in that After determining the mechanical jam type of the high-voltage disconnector, the method further includes: According to the mechanical jam type of the high-voltage disconnector, a processing suggestion corresponding to the mechanical jam type is output.

7. A mechanical jam diagnosis device, characterized in that: include: An acquisition module, used to acquire a torque time curve and an angle time curve of the high-voltage disconnector during operation, wherein the operation process is a closing process or an opening process; A division module, used for dividing the turning angle time curve into a plurality of turning angle intervals according to a plurality of preset turning angles, and obtaining the turning angle data corresponding to each of the turning angle intervals; A first determination module, configured to determine the torque data corresponding to each of the rotation angle intervals based on the start and end times corresponding to the rotation angle intervals and the torque time curve; a second determining module, for each of the angle intervals, determining torque angle data information corresponding to the angle interval according to the angle data and torque data corresponding to the angle interval, wherein the torque angle data information is a correlation coefficient and an area value between the angle data and the torque data; The third determination module is used to determine the mechanical jamming fault of the high-voltage disconnector according to the torque angle data information corresponding to the angle interval, the standard torque angle data information corresponding to the angle interval and a plurality of preset values.

8. An electronic device, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

10. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 6 when being executed by a processor.

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