Hybrid insulator operation state evaluation method and device, terminal equipment and storage medium

Abstract

The invention discloses a hybrid insulator operation state evaluation method and device, terminal equipment and a storage medium, and belongs to the technical field of power transmission line hybrid insulator monitoring, and the method comprises the steps: obtaining a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; constructing a standardized evaluation matrix and a correlation coefficient matrix of the hybrid insulator; calculating a variance contribution rate and a total variance contribution rate of each component according to the correlation coefficient matrix, selecting a plurality of components as a plurality of principal components according to the total variance contribution rate, and constructing a principal component vector matrix; constructing a comprehensive evaluation function according to the principal component vector matrix, the standardized evaluation matrix and the variance contribution rate of each component; and determining a comprehensive score of each hybrid insulator according to the comprehensive evaluation function, and generating an operation state evaluation result of each hybrid insulator according to each comprehensive score. The problem that the operation state of the hybrid insulator is difficult to comprehensively evaluate in the prior art is solved, and comprehensive evaluation of the operation state of the hybrid insulator is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of hybrid insulator monitoring for transmission lines, and in particular to a method, device, terminal equipment and storage medium for evaluating the operating status of a hybrid insulator. Background Art

[0002] Disc-shaped suspension hybrid insulators (hybrid insulators) have passed new product technical appraisal. They consist of a complete disc-shaped suspension porcelain or glass insulator and a high-temperature vulcanized silicone rubber covering. The HTV covering is first formed on the core surface using a high-temperature injection and high-temperature vulcanization one-step molding process, followed by adhesive-bonding of end fittings. Existing research on the operational performance of insulators generally begins with improved test methods. By designing and modifying hydrophobicity or other multi-factor aging test methods, corresponding tests are conducted to measure insulator performance degradation and subsequently evaluate the operational performance of the insulator batch. Current technologies primarily target composite insulators, typically using appearance performance indicators and hydrophobicity as evaluation criteria, resulting in incomplete evaluation results. Hybrid insulators, as a new type of insulator, lack relevant operational status evaluation methods. Furthermore, composite insulators consist of a core rod, silicone rubber shed sheath, and hardware, and the internal core and shed structures differ significantly. Existing technologies cannot be directly applied to hybrid insulators, making comprehensive evaluation of their operational status difficult. Summary of the Invention

[0003] The embodiments of the present invention provide a method, apparatus, terminal device and storage medium for evaluating the operating status of a hybrid insulator, which can solve the problem that the existing technology is difficult to comprehensively evaluate the operating status of a hybrid insulator, realize a comprehensive evaluation of the operating status of the hybrid insulator, and improve the comprehensiveness of the evaluation of the operating status of the hybrid insulator.

[0004] An embodiment of the present invention provides a method for evaluating the operating status of a hybrid insulator, comprising:

[0005] Obtaining a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects, and breakdown voltage value in air;

[0006] A standardized evaluation matrix of hybrid insulators is constructed based on each hybrid insulator and several index parameters of each hybrid insulator, and a correlation coefficient matrix of hybrid insulators is constructed based on the standardized evaluation matrix of hybrid insulators;

[0007] Calculating the variance contribution rate and the total variance contribution rate of each component according to the correlation coefficient matrix of the hybrid insulator, selecting several components whose total variance contribution rate is not less than the preset total variance contribution rate as several principal components, and constructing a principal component vector matrix according to the several principal components;

[0008] Based on the principal component vector matrix, the standardized evaluation matrix of hybrid insulators and the variance contribution rate of each component, a comprehensive evaluation function of each hybrid insulator is constructed;

[0009] A comprehensive score of each hybrid insulator is determined according to a comprehensive evaluation function of each hybrid insulator, and an operating status evaluation result of each hybrid insulator is generated according to the comprehensive score of each hybrid insulator.

[0010] Furthermore, the index parameters also include: hydrophobicity measurement level, high temperature resistance level and mechanical damage load measurement value.

[0011] Furthermore, the standardized evaluation matrix of hybrid insulators is constructed based on the hybrid insulators and several index parameters of each hybrid insulator, including:

[0012] Constructing a hybrid insulator data matrix based on various hybrid insulators and several index parameters of each hybrid insulator;

[0013] The hybrid insulator data matrix is ​​standardized to obtain a standardized evaluation matrix of the hybrid insulator.

[0014] Furthermore, the construction of a correlation coefficient matrix of hybrid insulators based on a standardized evaluation matrix of hybrid insulators includes:

[0015] According to the standardized evaluation matrix of hybrid insulators, the correlation coefficients between the two index parameters of each hybrid insulator are calculated to obtain several correlation coefficients of each hybrid insulator;

[0016] A correlation coefficient matrix of hybrid insulators is constructed according to several correlation coefficients of each hybrid insulator.

[0017] Furthermore, the variance contribution rate and the total variance contribution rate of each component are calculated based on the correlation coefficient matrix of the hybrid insulator, and several components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as several principal components, including:

[0018] Determining a plurality of eigenvalues ​​and a plurality of eigenvectors of the correlation coefficient matrix of the hybrid insulator according to the correlation coefficient matrix of the hybrid insulator;

[0019] The variance contribution rate and the total variance contribution rate of each component are calculated according to each eigenvalue, and several components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as several principal components.

[0020] Furthermore, constructing a principal component vector matrix based on a plurality of principal components includes:

[0021] Obtain several eigenvectors corresponding to several principal components according to several principal components;

[0022] A principal component vector matrix is ​​constructed according to several eigenvectors corresponding to several principal components.

[0023] Furthermore, the comprehensive evaluation function of each hybrid insulator is constructed based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator and the variance contribution rate of each component, including:

[0024] According to the principal component vector matrix and the standardized evaluation matrix of hybrid insulators, the principal component coefficient matrix is ​​constructed;

[0025] According to the principal component coefficient matrix and the variance contribution rate of each component, a comprehensive evaluation function of each hybrid insulator is constructed.

[0026] Based on the above method embodiment, the present invention provides a corresponding device embodiment;

[0027] An embodiment of the present invention provides a hybrid insulator operating status evaluation device, comprising: a data acquisition module, a data processing module, and an operating status evaluation module;

[0028] The data acquisition module is used to obtain a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects and breakdown voltage value in air;

[0029] The data processing module is used to construct a standardized evaluation matrix of hybrid insulators based on the hybrid insulators and a number of index parameters of each hybrid insulator;

[0030] A correlation coefficient matrix of hybrid insulators is constructed based on a standardized evaluation matrix of hybrid insulators; the variance contribution rate and the total variance contribution rate of each component are calculated based on the correlation coefficient matrix of the hybrid insulators, and several components whose total variance contribution rate is not less than a preset total variance contribution rate are selected as several principal components; a principal component vector matrix is ​​constructed based on the several principal components; a comprehensive evaluation function of each hybrid insulator is constructed based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator, and the variance contribution rate of each component;

[0031] The operating status evaluation module is used to determine the comprehensive score of each hybrid insulator according to the comprehensive evaluation function of each hybrid insulator, and generate the operating status evaluation result of each hybrid insulator according to the comprehensive score of each hybrid insulator.

[0032] Another embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the method for evaluating the operating status of a hybrid insulator described in the above-mentioned embodiment of the invention.

[0033] Another embodiment of the present invention provides a storage medium, which includes a stored computer program. When the computer program is running, the device where the storage medium is located is controlled to execute the hybrid insulator operating status evaluation method described in the above-mentioned embodiment of the invention.

[0034] The following beneficial effects are achieved by implementing the present invention:

[0035] The present invention provides a method, apparatus, terminal equipment and storage medium for evaluating the operating status of a hybrid insulator. The method obtains a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer cross section, coating layer thickness, voltage resistance, appearance defects and breakdown voltage in air; when multiple indicators of the hybrid insulator are obtained, a standardized evaluation matrix of the hybrid insulator is constructed according to the plurality of hybrid insulators and the plurality of index parameters of each hybrid insulator, and a correlation coefficient matrix of the hybrid insulator is constructed according to the standardized evaluation matrix of the hybrid insulator; the variance contribution rate and the total variance contribution rate of each component are calculated according to the correlation coefficient matrix of the hybrid insulator, and a plurality of components whose total variance contribution rate is not less than a preset total variance contribution rate are selected as a plurality of principal components, and a principal component vector matrix is ​​constructed according to the plurality of principal components; a comprehensive evaluation function of each hybrid insulator is constructed according to the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator and the variance contribution rate of each component; a comprehensive score of each hybrid insulator is determined according to the comprehensive evaluation function of each hybrid insulator, and an operating status evaluation result of each hybrid insulator is generated according to the comprehensive score of each hybrid insulator. The present invention comprehensively evaluates the operating status of the hybrid insulator from multiple dimensions through multiple index parameters, thereby achieving a comprehensive evaluation of the operating status of the hybrid insulator and improving the comprehensiveness of the evaluation of the operating status of the hybrid insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a flowchart of a method for evaluating the operating status of a hybrid insulator provided by an embodiment of the present invention.

[0037] Figure 2 The present invention is a schematic structural diagram of a hybrid insulator operating status evaluation device provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0046] like Figure 1 As shown, in order to solve the problem that it is difficult to comprehensively evaluate the operating status of hybrid insulators in the prior art, an embodiment of the present invention provides a method for evaluating the operating status of hybrid insulators, comprising:

[0047] Step S1: obtaining a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects and breakdown voltage in air;

[0048] Step S2: constructing a standardized evaluation matrix of the hybrid insulators according to the hybrid insulators and a number of index parameters of each hybrid insulator, and constructing a correlation coefficient matrix of the hybrid insulators according to the standardized evaluation matrix of the hybrid insulators;

[0049] Step S3: calculating the variance contribution rate and the total variance contribution rate of each component according to the correlation coefficient matrix of the hybrid insulator, selecting several components whose total variance contribution rate is not less than a preset total variance contribution rate as several principal components, and constructing a principal component vector matrix according to the several principal components;

[0050] Step S4: constructing a comprehensive evaluation function for each hybrid insulator based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator, and the variance contribution rate of each component;

[0051] Step S5: Determine the comprehensive score of each hybrid insulator according to the comprehensive evaluation function of each hybrid insulator, and generate the operating status evaluation result of each hybrid insulator according to the comprehensive score of each hybrid insulator.

[0052] In step S1, several hybrid insulators to be evaluated are obtained. These hybrid insulators are disc-shaped suspension hybrid insulators (hereinafter referred to as hybrid insulators), which are composed of a complete disc-shaped suspension porcelain or glass insulator and a high-temperature vulcanized silicone rubber coating. For each hybrid insulator, the coating area, coating cross-section, coating thickness, withstand voltage, appearance defects, and breakdown voltage in air are obtained.

[0053] In a preferred embodiment, the index parameters further include: a hydrophobicity measurement level, a high temperature resistance level, and a mechanical failure load measurement value.

[0054] Specifically, the table below shows the dimensionless processing of hybrid insulator parameter parameters and the corresponding output states and scores. The coating area is used to evaluate the coating condition of hybrid insulators and includes three criteria: a 0-5mm annular coating-free area on the upper and lower surfaces of the hybrid insulator, with the remaining area coated, corresponding to a score of 100 points; a coating should exist on the cement surface, iron cap and zinc ring, steel leg, and zinc sleeve of the hybrid insulator, corresponding to a score of 60 points; a radius of an annular coating-free area on the upper and lower surfaces of the hybrid insulator greater than 5mm, corresponding to a score of 0 points. The coating section is determined through a coating shear test on the hybrid insulator; the coating section includes two criteria: a smooth surface without porcelain or glass components, corresponding to a score of 100 points; and a large area of ​​smooth porcelain or glass components or a non-stick area with dense bubbles, corresponding to a score of 0 points. The coating thickness is determined by testing the coating thickness of hybrid insulators. The coating thickness includes three judgment indicators, including: average thickness ≥ 3mm, corresponding to a score of 100 points; 1mm≤ average thickness < 3mm, corresponding to a score of 60 points; average thickness < 1mm, corresponding to a score of 0 points. The voltage resistance is determined by conducting a power frequency withstand voltage test on the hybrid insulator. If the hybrid insulator has no breakdown in the power frequency withstand voltage test, the corresponding score is 100 points; if the hybrid insulator is damaged or broken down in the power frequency withstand voltage test, the corresponding score is 0 points. Appearance defects are determined by performing an appearance inspection on the hybrid insulator. If the appearance inspection is flat and smooth, without glue deficiency, bulges and cracks, that is, the appearance inspection has no defects, the corresponding score is 100 points; if there are slight defects in the appearance, the corresponding score is 60 points; if there are serious defects in the appearance, the corresponding score is 0 points. The breakdown voltage in air is determined by conducting an air impulse breakdown test on hybrid insulators. A breakdown voltage ≥ 2.5 pu in this test is scored as 100 points; a breakdown voltage ≤ 2.2 pu is scored as 70 points, and a breakdown voltage < 2.5 pu is scored as 0 points. The hydrophobicity rating is determined by measuring the hydrophobicity of hybrid insulators and consists of seven levels: HC1, HC2, HC3, HC4, HC5, HC6, and HC7, with corresponding scores of 100, 95, 85, 75, 60, 30, and 0, respectively. The high-temperature resistance rating is determined by conducting a water boiling test on hybrid insulators. If no cracking or shedding is observed after boiling, the score is 100 points; if slight cracking or shedding is observed after boiling, the score is 60 points; and if severe cracking or shedding is observed after boiling, the score is 0 points. The mechanical failure load measurement value is obtained by conducting a mechanical failure load test on the hybrid insulator. If the measurement value is ≥1.2×SFL, the corresponding score is 100 points; if SFL≤measured value<1.2×SFL, the corresponding score is 75 points; if the measurement value is <SFL, the corresponding score is 0 points.

[0055]

[0056]

[0057] For step S2, in a preferred embodiment, constructing a standardized evaluation matrix of hybrid insulators based on each hybrid insulator and several index parameters of each hybrid insulator includes: constructing a hybrid insulator data matrix based on each hybrid insulator and several index parameters of each hybrid insulator; and standardizing the hybrid insulator data matrix to obtain a standardized evaluation matrix of hybrid insulators.

[0058] Specifically, after dimensionless processing of each hybrid insulator and several index parameters of each hybrid insulator, the hybrid insulator data matrix X is constructed:

[0059] X=(x ij ) n×p =(X1,X2,…X p );

[0060] X j =(x 1j ,x 2j ,…,x nj ) T j=1,2,…,p;

[0061] Where X is the hybrid insulator data matrix; n is the number of hybrid insulators; p is the number of hybrid insulator index parameters; X j is the column vector of the jth indicator in the evaluation index; x ij is the jth index of the i-th hybrid insulator.

[0062] The hybrid insulator data matrix X is standardized according to the following formula to obtain the standardized evaluation matrix Z of the hybrid insulator:

[0063]

[0064] in, is the average value of the jth indicator; is the standard deviation of the j-th indicator.

[0065] In a preferred embodiment, constructing a correlation coefficient matrix of hybrid insulators based on a standardized evaluation matrix of hybrid insulators includes: calculating the correlation coefficients between each pair of index parameters of each hybrid insulator based on the standardized evaluation matrix of hybrid insulators to obtain several correlation coefficients of each hybrid insulator; and constructing a correlation coefficient matrix of hybrid insulators based on the several correlation coefficients of each hybrid insulator.

[0066] Specifically, the correlation coefficient matrix R of the hybrid insulator of the standardized evaluation matrix Z of the hybrid insulator is constructed according to the following formula:

[0067]

[0068] Among them, cov(z i ,z j ) is the covariance between the i-th column vector and the j-th column vector in the standardized state evaluation matrix Z; is the variance of the i-th column vector in the matrix Z; is the variance of the j-th column vector in the matrix Z.

[0069] For step S3, the variance contribution rate and the total variance contribution rate of each component are calculated according to the correlation coefficient matrix of the hybrid insulator, and several components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as several principal components, and a principal component vector matrix is ​​constructed according to the several principal components.

[0070] In a preferred embodiment, the variance contribution rate and the total variance contribution rate of each component are calculated based on the correlation coefficient matrix of the hybrid insulator, and several components whose total variance contribution rate is not less than a preset total variance contribution rate are selected as several principal components, including: determining several eigenvalues ​​and several eigenvectors of the correlation coefficient matrix of the hybrid insulator based on the correlation coefficient matrix of the hybrid insulator; calculating the variance contribution rate and the total variance contribution rate of each component based on each eigenvalue, and selecting several components whose total variance contribution rate is not less than the preset total variance contribution rate as several principal components.

[0071] In a preferred embodiment, constructing a principal component vector matrix based on several principal components includes: obtaining several eigenvectors corresponding to the several principal components based on the several principal components; and constructing a principal component vector matrix based on the several eigenvectors corresponding to the several principal components.

[0072] Specifically, the eigenvalue and eigenvector of the correlation coefficient matrix R of the hybrid insulator are calculated, and the eigenvalues ​​are arranged from large to small as λ1, λ2,…,λ p , the eigenvalues ​​corresponding to the eigenvectors are e1, e2,…, e p The variance contribution rate of the kth component is calculated based on the eigenvalue. The calculation formula of the variance contribution rate of the kth component is as follows:

[0073]

[0074] Among them, μ k is the variance contribution rate of the kth component; k is the kth eigenvalue.

[0075] Furthermore, the total variance contribution of the first m components is expressed as:

[0076]

[0077] Where μ is the total variance contribution of the first m components.

[0078] The first m components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as m principal components. In the present invention, the preset total variance contribution rate is 85%. The corresponding eigenvectors are obtained based on the m principal components, and the principal component vector matrix E is constructed as shown below:

[0079]

[0080] For step S4, a comprehensive evaluation function of each hybrid insulator is constructed based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator and the variance contribution rate of each component.

[0081] In a preferred embodiment, the method of constructing a comprehensive evaluation function for each hybrid insulator based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator and the variance contribution rate of each component includes: constructing a principal component coefficient matrix based on the principal component vector matrix and the standardized evaluation matrix of the hybrid insulator; and constructing a comprehensive evaluation function for each hybrid insulator based on the principal component coefficient matrix and the variance contribution rate of each component.

[0082] Specifically, according to the principal component vector matrix E and the standardized evaluation matrix Z of the hybrid insulator, the principal component coefficient matrix Y is constructed:

[0083]

[0084] Among them, Y is an m×n matrix; Y i is the eigenvalue λ i The corresponding principal component.

[0085] According to the calculation formula of variance contribution rate and principal component coefficient matrix Y, the comprehensive evaluation function S of the rth hybrid insulator is established. t :

[0086]

[0087] Among them, μ i is the variance contribution rate of the i-th principal component, y ri The value of the rth column and ith row in the principal component coefficient matrix.

[0088] In step S5, a comprehensive score of each hybrid insulator is determined according to the comprehensive evaluation function of each hybrid insulator, and an operating status evaluation result of each hybrid insulator is generated according to the comprehensive score of each hybrid insulator.

[0089] Specifically, a comprehensive score for each hybrid insulator is obtained based on the comprehensive evaluation function, and an operating status evaluation result for each hybrid insulator is determined based on the following table. Preferably, the operating status and operation and maintenance recommendations for the hybrid insulator are output according to the following table based on different operating status evaluation results, and the operating status and operation and maintenance recommendations for the hybrid insulator are provided to the operation and maintenance personnel to assist them in promptly identifying and eliminating safety hazards, reducing the operation and maintenance workload, and improving the safety of the transmission line.

[0090]

[0091]

[0092] Based on the above method embodiments, the present invention provides corresponding device embodiments.

[0093] like Figure 2 As shown, an embodiment of the present invention provides a hybrid insulator operating status evaluation device, comprising: a data acquisition module, a data processing module and an operating status evaluation module;

[0094] The data acquisition module is used to obtain a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects and breakdown voltage value in air;

[0095] The data processing module is used to construct a standardized evaluation matrix of hybrid insulators based on the hybrid insulators and a number of index parameters of each hybrid insulator;

[0096] A correlation coefficient matrix of hybrid insulators is constructed based on a standardized evaluation matrix of hybrid insulators; the variance contribution rate and the total variance contribution rate of each component are calculated based on the correlation coefficient matrix of the hybrid insulators, and several components whose total variance contribution rate is not less than a preset total variance contribution rate are selected as several principal components; a principal component vector matrix is ​​constructed based on the several principal components; a comprehensive evaluation function of each hybrid insulator is constructed based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator, and the variance contribution rate of each component;

[0097] The operating status evaluation module is used to determine the comprehensive score of each hybrid insulator according to the comprehensive evaluation function of each hybrid insulator, and generate the operating status evaluation result of each hybrid insulator according to the comprehensive score of each hybrid insulator.

[0098] It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art can understand and implement the present invention without inventive effort.

[0099] Those skilled in the art will clearly understand that for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0100] Based on the above method embodiment, the present invention provides a corresponding terminal device embodiment.

[0101] An embodiment of the present invention provides a terminal device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, a method for evaluating the operating status of a hybrid insulator as described in any one of the present inventions is implemented.

[0102] The terminal device may be a computing device such as a desktop computer, a notebook computer, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0103] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the terminal device, connecting various parts of the entire terminal device using various interfaces and lines.

[0104] The memory can be used to store the computer program, and the processor realizes various functions of the terminal device by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created based on the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0105] Based on the above method embodiment, the present invention provides a corresponding storage medium embodiment.

[0106] An embodiment of the present invention provides a storage medium, which includes a stored computer program. When the computer program is running, the device where the storage medium is located is controlled to execute a hybrid insulator operating status evaluation method described in any one of the present inventions.

[0107] The storage medium is a computer-readable storage medium, and the computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. The computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium.

[0108] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for evaluating the operating status of a hybrid insulator, characterized in that: include: Obtaining a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects, and breakdown voltage value in air; A standardized evaluation matrix of hybrid insulators is constructed based on each hybrid insulator and several index parameters of each hybrid insulator, and a correlation coefficient matrix of hybrid insulators is constructed based on the standardized evaluation matrix of hybrid insulators; Calculating the variance contribution rate and the total variance contribution rate of each component according to the correlation coefficient matrix of the hybrid insulator, selecting several components whose total variance contribution rate is not less than the preset total variance contribution rate as several principal components, and constructing a principal component vector matrix according to the several principal components; Based on the principal component vector matrix, the standardized evaluation matrix of hybrid insulators and the variance contribution rate of each component, a comprehensive evaluation function of each hybrid insulator is constructed; A comprehensive score of each hybrid insulator is determined according to a comprehensive evaluation function of each hybrid insulator, and an operating status evaluation result of each hybrid insulator is generated according to the comprehensive score of each hybrid insulator.

2. A hybrid insulator operating status evaluation method according to claim 1, characterized in that: The index parameters also include: hydrophobicity measurement level, high temperature resistance level and mechanical failure load measurement value.

3. The method for evaluating the operating status of a hybrid insulator according to claim 1, wherein: The standardized evaluation matrix of hybrid insulators is constructed based on the hybrid insulators and several index parameters of each hybrid insulator, including: Constructing a hybrid insulator data matrix based on various hybrid insulators and several index parameters of each hybrid insulator; The hybrid insulator data matrix is ​​standardized to obtain a standardized evaluation matrix of the hybrid insulator.

4. A method for evaluating the operating status of a hybrid insulator according to claim 1, characterized in that: The process of constructing a correlation coefficient matrix of hybrid insulators according to a standardized evaluation matrix of hybrid insulators includes: According to the standardized evaluation matrix of hybrid insulators, the correlation coefficients between the two index parameters of each hybrid insulator are calculated to obtain several correlation coefficients of each hybrid insulator; A correlation coefficient matrix of hybrid insulators is constructed according to several correlation coefficients of each hybrid insulator.

5. The method for evaluating the operating status of a hybrid insulator according to claim 1, wherein: The variance contribution rate and total variance contribution rate of each component are calculated according to the correlation coefficient matrix of the hybrid insulator, and several components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as several main components, including: Determining a plurality of eigenvalues ​​and a plurality of eigenvectors of the correlation coefficient matrix of the hybrid insulator according to the correlation coefficient matrix of the hybrid insulator; The variance contribution rate and the total variance contribution rate of each component are calculated according to each eigenvalue, and several components whose total variance contribution rate is not less than the preset total variance contribution rate are selected as several principal components.

6. A hybrid insulator operating status evaluation method according to claim 5, characterized in that: The constructing of a principal component vector matrix according to a plurality of principal components includes: Obtain several eigenvectors corresponding to several principal components according to several principal components; A principal component vector matrix is ​​constructed according to several eigenvectors corresponding to several principal components.

7. A hybrid insulator operating status evaluation method according to claim 6, characterized in that: The method of constructing a comprehensive evaluation function for each hybrid insulator based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator, and the variance contribution rate of each component includes: According to the principal component vector matrix and the standardized evaluation matrix of hybrid insulators, the principal component coefficient matrix is ​​constructed; According to the principal component coefficient matrix and the variance contribution rate of each component, a comprehensive evaluation function of each hybrid insulator is constructed.

8. A hybrid insulator operating status evaluation device, characterized in that: include: Data acquisition module, data processing module and operation status evaluation module; The data acquisition module is used to obtain a plurality of hybrid insulators and a plurality of index parameters of each hybrid insulator; wherein the index parameters include: coating area, coating layer section, coating layer thickness, voltage resistance, appearance defects and breakdown voltage value in air; The data processing module is used to construct a standardized evaluation matrix of hybrid insulators based on the hybrid insulators and a number of index parameters of each hybrid insulator; A correlation coefficient matrix of hybrid insulators is constructed based on a standardized evaluation matrix of hybrid insulators; the variance contribution rate and the total variance contribution rate of each component are calculated based on the correlation coefficient matrix of the hybrid insulators, and several components whose total variance contribution rate is not less than a preset total variance contribution rate are selected as several principal components; a principal component vector matrix is ​​constructed based on the several principal components; a comprehensive evaluation function of each hybrid insulator is constructed based on the principal component vector matrix, the standardized evaluation matrix of the hybrid insulator, and the variance contribution rate of each component; The operating status evaluation module is used to determine the comprehensive score of each hybrid insulator according to the comprehensive evaluation function of each hybrid insulator, and generate the operating status evaluation result of each hybrid insulator according to the comprehensive score of each hybrid insulator.

9. A terminal device, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the method for evaluating the operating status of a hybrid insulator according to any one of claims 1 to 7 is implemented.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the hybrid insulator operating status evaluation method according to any one of claims 1 to 7.

Images