An evaluation method for the working state of the reset spring of a high-voltage circuit breaker and related equipment

Abstract

An embodiment of the present invention discloses a method and related equipment for evaluating the working state of a reset spring of a high-voltage circuit breaker. The method includes: obtaining spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic motion of the spring; obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data; obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data; and evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data. Without the need to disassemble the spring and without a large number of tests, it is possible to evaluate the working state of the reset spring of the high-voltage circuit breaker, which is convenient, fast, and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of power system fault detection and protection, and particularly to a method for evaluating the working state of a reset spring of a high-voltage circuit breaker and related equipment. Background Art

[0002] As one of the important control and protection units of the power system, the reliable operation of high-voltage switchgear in opening and closing directly determines the safe and stable operation of the system. The operating mechanism is the core component for the high-voltage switchgear to perform opening and closing operations. Exploring the improvement of its reliability and failure mechanism is crucial for ensuring the safe and stable operation and reliable power supply of the future power system mainly based on new energy.

[0003] The main factors causing the failure of switchgear and its control equipment include: insulation aging, fatigue failure of mechanical components, plastic deformation or aging failure of sealing components, etc. Among them, mechanical failure accounts for more than 83% of the total failure rate of switchgear. The results of three reliability investigations of switchgear operating in the global grid by the International Council on Large Electric Systems (CIGRE) show that with the development of equipment manufacturing technology and processes, the reliability of switchgear shows an increasing trend. However, with the increase in the applied voltage level of high-voltage switchgear, the failure rate also shows an increasing trend. The results of the reliability investigation of high-voltage switchgear completed by CIGRE in 2013 show that the annual failure rate of high-voltage circuit breakers is 0.3, the annual failure rate of disconnectors and earthing switches is 0.21, and the annual failure rate of GIS switchgear is 0.37. Among them, mechanical failure of high-voltage circuit breakers accounts for 83% of the total failure rate. Mechanical failures such as the mechanical integrity of circuit breakers, refusal to open, refusal to close, and locking of opening and closing positions account for a large proportion of the total failure rate of circuit breakers. Among them, mechanical failures caused by the operating mechanism account for more than 50% of all failure rates, and the mechanical failure rates of the reset spring, transmission link, bearing, etc. of the operating mechanism reach 25.6%.

[0004] The current research on spring parameters mainly includes two categories: the first category is the traditional method of judging through spring characteristic tests. This method requires removing the spring from the operating mechanism, which is cumbersome and affects economic benefits; the other method is more commonly used, which judges the spring state through the vibration signals monitored by an on-line monitoring device, but a large number of tests need to be carried out in advance to construct a vibration signal database corresponding to different spring states. Summary of the Invention

[0005] In view of this, the present invention provides a method for evaluating the working state of a reset spring of a high-voltage circuit breaker and related equipment, which is used to solve the problems that in the evaluation process of the working state of the reset spring of a high-voltage circuit breaker in the prior art, it is necessary to disassemble the spring or a large number of experiments are required. To achieve one or part or all of the above purposes or other purposes, the present invention proposes a method for evaluating the working state of a reset spring of a high-voltage circuit breaker, including:

[0006] Obtain the spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load that causes the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker;

[0007] Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data;

[0008] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data;

[0009] Evaluate the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data.

[0010] Optionally, the step of obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data includes:

[0011] Construct a differential equation for the vibration of the reset spring of the high-voltage circuit breaker according to the force generated by the collision between the spring and the connecting rod and the load that causes the overall simple harmonic motion of the spring;

[0012] Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the differential equation and the deformation caused by the collision of the connecting rod.

[0013] Optionally, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data includes:

[0014] Construct the initial data required for the preset inversion model based on the deformation length data, where the preset inversion model is an inversion model constructed by using the Lagrange inversion method;

[0015] Fit the initial data to obtain the target data in the form of a power series;

[0016] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data.

[0017] Optionally, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data includes:

[0018] Import the target data into the preset inversion model to improve the power series expression in the target data;

[0019] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker based on the improved power series expression.

[0020] Optionally, the step of importing the target data into the preset inversion model to improve the power series expression in the target data includes:

[0021] Import the target data into the preset inversion model to obtain the polynomial coefficients corresponding to the power series expression in the target data;

[0022] Substitute the polynomial coefficients into the power series expression in the target data to obtain a refined power series expression.

[0023] Optionally, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the refined power series expression includes:

[0024] Obtain the deformation data of the reset spring of the high-voltage circuit breaker based on the refined power series expression;

[0025] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the deformation data.

[0026] Optionally, the step of evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data includes:

[0027] Match the stiffness data with a preset stiffness range to determine whether the stiffness data is within the preset stiffness range. Here, the lowest value of the preset stiffness range is the stiffness value of the reset spring of the high-voltage circuit breaker when it is not working, and the highest value of the preset stiffness range is the maximum stiffness value of the reset spring of the high-voltage circuit breaker when it is working properly;

[0028] If the stiffness data is within the preset stiffness range, generate an evaluation result indicating that the reset spring of the high-voltage circuit breaker is in a normal working state;

[0029] If the stiffness data is not within the preset stiffness range, generate an evaluation result indicating that the reset spring of the high-voltage circuit breaker is in a faulty state, and generate an alarm instruction for indicating the malfunction of the reset spring of the high-voltage circuit breaker.

[0030] On the other hand, an embodiment of the present application provides an evaluation device for the working state of the reset spring of a high-voltage circuit breaker, including:

[0031] A data acquisition module for acquiring the spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the acting force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load causing the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker;

[0032] A calculation module for obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data;

[0033] An inversion module for obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data;

[0034] An evaluation module for evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data.

[0035] On the other hand, an embodiment of the present application provides an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device runs, the processor communicates with the memory through the bus. When the machine-readable instructions are executed by the processor, the steps of the method for evaluating the working state of the reset spring of the high-voltage circuit breaker as described above are executed.

[0036] On the other hand, an embodiment of the present application provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the steps of the method for evaluating the working state of the reset spring of the high-voltage circuit breaker as described above are implemented.

[0037] Implementing the embodiments of the present invention will have the following beneficial effects:

[0038] By obtaining the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic motion of the spring, and through the conversion of the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic motion of the spring, the stiffness data of the reset spring of the high-voltage circuit breaker is obtained. Without the need to disassemble the spring and without a large number of tests, it is possible to evaluate the working state of the reset spring of the high-voltage circuit breaker, which is convenient and fast and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0040] Among them:

[0041] Figure 1 Shows a flowchart of a method for evaluating the working state of the reset spring of the high-voltage circuit breaker proposed by an embodiment of the present application;

[0042] Figure 2 Shows a schematic structural diagram of a device for evaluating the working state of the reset spring of the high-voltage circuit breaker proposed by an embodiment of the present application;

[0043] Figure 3 Shows a schematic structural diagram of an electronic device proposed by an embodiment of the present application;

[0044] Figure 4The structural schematic diagram of a computer-readable storage medium provided by an embodiment of the present application is shown. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 making creative efforts belong to the scope of protection of the present invention.

[0046] Please refer to Figure 1 , an evaluation method for the working state of a reset spring of a high-voltage circuit breaker provided by an embodiment of the present application, including:

[0047] S101. Obtain spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the acting force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load causing the overall simple harmonic vibration of the reset spring of the high-voltage circuit breaker;

[0048] Exemplarily, in actual operation, the acting force of the collision between the spring and the connecting rod and the load causing the overall simple harmonic vibration of the spring are obtained by measuring the force with a pressure sensor: A pressure sensor is a sensitive device that converts the strain force change on the measured part into an electrical signal and needs to be installed in the operating mechanism in advance. By measuring the force of the pressure sensor during the electrode arcing experiment when the circuit breaker operates normally, a series of spring data such as the acting force of the collision between the spring and the connecting rod and the load causing the overall simple harmonic vibration of the spring are obtained.

[0049] S102. Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data;

[0050] In a possible implementation manner, the step of obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data includes:

[0051] Construct a differential equation for the vibration of the reset spring of the high-voltage circuit breaker according to the acting force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic vibration of the spring;

[0052] Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the differential equation and the deformation caused by the collision of the connecting rod.

[0053] Exemplarily, the deformation y′(t) caused by the collision of the connecting rod is obtained by a ranging sensor. According to the differential equation of the spring vibration:

[0054]

[0055] where, F 1Represents the force generated by the collision between the spring and the connecting rod, F 2 Represents the load that causes the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker;

[0056] And the deformation y′(t) caused by the collision of the connecting rod is transformed accordingly by the following formula:

[0057]

[0058] Obtain the spring deformation length data.

[0059] S103. Obtain the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data;

[0060] In a possible implementation manner, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data includes:

[0061] Construct the initial data required for the preset inversion model based on the deformation length data, where the preset inversion model is an inversion model constructed by using the Lagrange inversion method;

[0062] Fit the initial data to obtain the target data in the form of a power series;

[0063] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data.

[0064] Exemplarily, construct the initial data required for the preset inversion model based on the deformation length data:

[0065] Y = [y 1 , y 2 , y 3 ,..., y N ,

[0066] Y′ = [y 2 , y 3 , y 4 ,..., y N-1 .

[0067] Among them, y i is the deformation length at time t i ;

[0068] Fit the initial data to obtain the target data in the form of a power series, specifically:

[0069] G(y) = β -n y -n + β -(n-1) y -(n-1) +... + β -1 y -1 + β 0+β 1 y +... + β m y m

[0070] Obtain the stiffness data of the reset spring of the high - voltage circuit breaker according to the target data.

[0071] Exemplarily, in the process of calculating the power - series expression of the initial spring data, it can be established using Matlab software. Matlab is commonly used in fields such as data analysis and non - linear system modeling; or it can be fitted using PyTorch of Python. PyTorch is an open - source Python machine - learning library.

[0072] S104. Evaluate the working state of the reset spring of the high - voltage circuit breaker according to the stiffness data.

[0073] By obtaining the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic vibration of the spring, and through the conversion of the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic vibration of the spring, the stiffness data of the reset spring of the high - voltage circuit breaker is obtained. Without the need to disassemble the spring and without a large number of tests, the evaluation of the working state of the reset spring of the high - voltage circuit breaker can be realized, which is convenient, fast, and has a wide range of applications.

[0074] In a possible implementation manner, the step of obtaining the stiffness data of the reset spring of the high - voltage circuit breaker according to the target data includes:

[0075] Import the target data into the preset inversion model to improve the power - series expression in the target data;

[0076] Based on the improved power - series expression, obtain the stiffness data of the reset spring of the high - voltage circuit breaker.

[0077] Exemplarily, the step of importing the target data into the preset inversion model to improve the power - series expression in the target data includes:

[0078] Import the target data into the preset inversion model to obtain the polynomial coefficients corresponding to the power - series expression in the target data;

[0079] Substitute the polynomial coefficients into the power - series expression in the target data to obtain the improved power - series expression.

[0080] Exemplarily, the preset inversion model is constructed using the Lagrange inversion method:

[0081] G(Ξ(y i )) = y i

[0082]

[0083] Among them, Ξ(y i ) is a polynomial in the form of a power series with unknown coefficients. Ξ(y i ) and G(y) are composite inverses of each other. The preset inversion model is used to calculate the polynomial coefficients of Ξ(y i ).

[0084] According to the simplification and derivation of the above formula, the polynomial coefficients corresponding to Ξ(y i ) can be obtained:

[0085]

[0086] Substitute the polynomial coefficients into the power series expression in the target data to obtain a refined power series expression.

[0087] In a possible implementation manner, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the refined power series expression includes:

[0088] Obtain the deformation data of the reset spring of the high-voltage circuit breaker based on the refined power series expression;

[0089] Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the deformation data.

[0090] Exemplarily, substitute the deformation data into

[0091]

[0092] to obtain the stiffness data of the reset spring of the high-voltage circuit breaker.

[0093] In a possible implementation manner, the step of evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data includes:

[0094] Match the stiffness data with a preset stiffness range to determine whether the stiffness data is within the preset stiffness range. Among them, the lowest value of the preset stiffness range is the stiffness value of the reset spring of the high-voltage circuit breaker when it is not working, and the highest value of the preset stiffness range is the maximum stiffness value when the reset spring of the high-voltage circuit breaker is working properly;

[0095] If the stiffness data is within the preset stiffness range, generate an evaluation result indicating that the reset spring of the high-voltage circuit breaker is in a normal working state;

[0096] If the stiffness data is not within the preset stiffness range, generate an evaluation result indicating that the reset spring of the high-voltage circuit breaker is in a faulty state, and generate an alarm instruction, where the alarm instruction is used to display the malfunction of the reset spring of the high-voltage circuit breaker.

[0097] Exemplarily, the selection of the minimum value and the maximum value of the preset stiffness range can also be set according to actual requirements. For example, when the reset spring of the high-voltage circuit breaker cannot fully recover after being stretched but does not affect the normal operation of the high-voltage circuit breaker, it is necessary to adjust the minimum value of the preset stiffness range.

[0098] If the stiffness data is within the preset stiffness range, an evaluation result representing that the reset spring of the high-voltage circuit breaker is in a normal working state is generated;

[0099] If the stiffness data is not within the preset stiffness range, an evaluation result representing that the reset spring of the high-voltage circuit breaker is in a faulty state is generated, and an alarm instruction is generated, where the alarm instruction is used to display the failure of the reset spring of the high-voltage circuit breaker to operate.

[0100] Without the need to disassemble the spring and without a large number of tests, it is possible to evaluate the working state of the reset spring of the high-voltage circuit breaker and generate an alarm instruction for the faulty spring, enabling the operator to promptly discover the fault point, which is convenient and fast and has a wide range of applications.

[0101] In a possible implementation manner, as Figure 2 shown, an embodiment of the present application provides an evaluation device for the working state of the reset spring of a high-voltage circuit breaker, including:

[0102] A data acquisition module 201, configured to acquire spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the acting force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load causing the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker;

[0103] A calculation module 202, configured to obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data;

[0104] An inversion module 203, configured to obtain the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data;

[0105] An evaluation module 204, configured to evaluate the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data.

[0106] In a possible implementation manner, an embodiment of the present application provides an evaluation device for the working state of the reset spring of a high-voltage circuit breaker, further including:

[0107] An alarm module, configured to generate an alarm instruction when the stiffness data is not within the preset stiffness range, where the alarm instruction is used to display the failure of the reset spring of the high-voltage circuit breaker to operate.

[0108] In a possible implementation manner, asFigure 3 As shown in the figure, an embodiment of the present application provides an electronic device 300, including: a memory 310, a processor 320, and a computer program 311 stored on the memory 310 and executable on the processor 320. When the processor 320 executes the computer program 311, the following steps are implemented: obtaining spring data of a high-voltage circuit breaker reset spring, where the spring data includes the force generated by the collision between the high-voltage circuit breaker reset spring and the connecting rod and the load causing the overall simple harmonic motion of the high-voltage circuit breaker reset spring; obtaining the deformation length data of the high-voltage circuit breaker reset spring according to the spring data; obtaining the stiffness data of the high-voltage circuit breaker reset spring based on the deformation length data; and evaluating the working state of the high-voltage circuit breaker reset spring according to the stiffness data.

[0109] In a possible implementation manner, as Figure 4 As shown in the figure, an embodiment of the present application provides a computer-readable storage medium 400, on which a computer program 411 is stored. When the computer program 411 is executed by a processor, the following steps are implemented: obtaining spring data of a high-voltage circuit breaker reset spring, where the spring data includes the force generated by the collision between the high-voltage circuit breaker reset spring and the connecting rod and the load causing the overall simple harmonic motion of the high-voltage circuit breaker reset spring; obtaining the deformation length data of the high-voltage circuit breaker reset spring according to the spring data; obtaining the stiffness data of the high-voltage circuit breaker reset spring based on the deformation length data; and evaluating the working state of the high-voltage circuit breaker reset spring according to the stiffness data.

[0110] The computer storage medium of the embodiments of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, the computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

[0111] A computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0112] The program code contained on a computer-readable medium can be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination of the above.

[0113] The computer program code for performing the operations of the present invention can be written in one or more programming languages or combinations thereof. The above programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages - such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0114] Those of ordinary skill in the art should understand that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device. They can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Optionally, they can be implemented using program code executable by a computer device, so that they can be stored in a storage device and executed by the computing device, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0115] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described above. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

[0116] What is disclosed above is only the preferred embodiment of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A method for evaluating the working state of a reset spring of a high-voltage circuit breaker, characterized in that, it includes: Obtain the spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load that causes the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker; Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data; Obtain the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data; Evaluate the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data; Among them, the step of obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data includes: Construct a differential equation for the vibration of the reset spring of the high-voltage circuit breaker according to the force generated by the collision between the spring and the connecting rod and the load that causes the overall simple harmonic motion of the spring; Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the differential equation and the deformation caused by the collision of the connecting rod; Among them, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data includes: Construct the initial data required for the preset inversion model based on the deformation length data, where the preset inversion model is an inversion model constructed by using the Lagrange inversion method; Fit the initial data to obtain the target data in the form of a power series; Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data; Among them, the step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data includes: Import the target data into the preset inversion model to improve the power series expression in the target data; Based on the improved power series expression, obtain the stiffness data of the reset spring of the high-voltage circuit breaker.

2. The method for evaluating the working state of a reset spring of a high-voltage circuit breaker according to claim 1, characterized in that, The step of importing the target data into the preset inversion model to improve the power series expression in the target data includes: Import the target data into the preset inversion model to obtain the polynomial coefficients corresponding to the power series expression in the target data; Substitute the polynomial coefficients into the power series expression in the target data to obtain the improved power series expression.

3. The method for evaluating the working state of a reset spring of a high-voltage circuit breaker according to claim 1, characterized in that, The step of obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the improved power series expression includes: Obtain the deformation data of the reset spring of the high-voltage circuit breaker based on the improved power series expression; Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the deformation data.

4. The method for evaluating the working state of a reset spring of a high-voltage circuit breaker according to claim 1, characterized in that, The step of evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data includes: Match the stiffness data with a preset stiffness range to determine whether the stiffness data is within the preset stiffness range. Here, the lowest value of the preset stiffness range is the stiffness value when the reset spring of the high-voltage circuit breaker is not working, and the highest value of the preset stiffness range is the maximum stiffness value when the reset spring of the high-voltage circuit breaker is working properly; If the stiffness data is within the preset stiffness range, generate an evaluation result representing that the reset spring of the high-voltage circuit breaker is in a normal working state; If the stiffness data is not within the preset stiffness range, generate an evaluation result representing that the reset spring of the high-voltage circuit breaker is in a faulty state, and generate an alarm instruction for indicating the refusal-to-operate fault of the reset spring of the high-voltage circuit breaker.

5. An evaluation device for the working state of the reset spring of a high-voltage circuit breaker, characterized in that, it includes: A data acquisition module for acquiring spring data of the reset spring of the high-voltage circuit breaker, where the spring data includes the force generated by the collision between the reset spring of the high-voltage circuit breaker and the connecting rod and the load causing the overall simple harmonic motion of the reset spring of the high-voltage circuit breaker; A calculation module for obtaining the deformation length data of the reset spring of the high-voltage circuit breaker according to the spring data; An inversion module for obtaining the stiffness data of the reset spring of the high-voltage circuit breaker based on the deformation length data; An evaluation module for evaluating the working state of the reset spring of the high-voltage circuit breaker according to the stiffness data; The calculation module is further configured to construct a differential equation for the vibration of the reset spring of the high-voltage circuit breaker according to the force generated by the collision between the spring and the connecting rod and the load causing the overall simple harmonic motion of the spring; Obtain the deformation length data of the reset spring of the high-voltage circuit breaker according to the differential equation and the deformation caused by the collision of the connecting rod; The inversion module is further configured to construct initial data required for a preset inversion model based on the deformation length data, where the preset inversion model is an inversion model constructed by using the Lagrange inversion method; Fit the initial data to obtain target data in the form of a power series; Obtain the stiffness data of the reset spring of the high-voltage circuit breaker according to the target data; The inversion module is further configured to import the target data into the preset inversion model to improve the power series expression in the target data; Based on the improved power series expression, obtain the stiffness data of the reset spring of the high-voltage circuit breaker.

6. An electronic device, characterized in that, it includes: A processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory through the bus. When the machine-readable instructions are executed by the processor, the steps of the method for evaluating the working state of the reset spring of the high-voltage circuit breaker according to any one of claims 1 to 4 are executed.

7. A computer-readable storage medium, characterized in that, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for evaluating the working state of the reset spring of the high-voltage circuit breaker according to any one of claims 1 to 4 are implemented.

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