CN111812468A - Composite insulator evaluation method, evaluation device, processor and evaluation system - Google Patents
Composite insulator evaluation method, evaluation device, processor and evaluation system Download PDFInfo
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- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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Abstract
The application provides an evaluation method, an evaluation device, a processor and an evaluation system of a composite insulator, wherein the evaluation method comprises the following steps: acquiring evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when the composite insulator is subjected to surface flashover in a discharge test, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test; and generating an evaluation report according to the evaluation data. According to the evaluation method, the flashover voltage, the surface erosion data and the internal erosion data are used as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, the composite insulator can be selected properly in different application environments, and the problem that the composite insulator evaluation method in the prior art is too one-sided is solved.
Description
Technical Field
The application relates to the technical field of composite insulators, in particular to an evaluation method, an evaluation device, a computer-readable storage medium, a processor and an evaluation system of a composite insulator.
Background
The composite insulator is widely applied to high-voltage grade transmission lines, and compared with porcelain insulators or glass insulators, the composite insulator is widely applied due to the advantages of light weight, good pollution flashover resistance, no need of cleaning, convenience in maintenance, low installation and debugging cost and the like. As known from the operation experience of the composite insulator in the year, the excellent hydrophobicity of the composite insulator can obviously reduce the transmission loss of the power transmission line. The silicon rubber has good polymerization property, so that the silicon rubber has good plasticity and hydrophobicity, but the composite insulator is an electrical external insulation device, is exposed in an atmospheric environment throughout the year, runs in severe weather such as sunlight, rainwater, sand blown by the wind, high temperature, severe cold and the like for a long time, and has the problems of loss of hydrophobicity, aging, corrosion of the surface of a material and the like under the influence of a strong electric field.
With the continuous development and improvement of power transmission technology, the ultra-high voltage direct current power transmission is widely applied in the process of long-distance electric energy transportation. Since the electric field is unidirectional and constant under direct current, contaminants in the air are attracted to the insulator surface. Although the greater contamination problem can be controlled by increasing the polymer's creepage distance, it becomes a troublesome problem when moving from ac transmission to dc transmission systems. Therefore, insulators used for dc transmission need to cope with these problems. In composite insulators, however, more erosion occurs due to the higher surface temperature. Therefore, it is necessary to improve the corrosion resistance of the composite insulator silicone rubber material.
At present, the research on the silicon rubber insulator by the novel nano material is still in the initial stage, and the following aspects are focused on the future research: the preparation method and the process of the silicone rubber composite material are researched and explored, and the concentration and the dispersibility of the filler in the rubber are improved; the research of the cooperative reinforcement of the silicon rubber by various nano materials is enhanced, and the comprehensive performance of the silicon rubber is improved, so that the actual requirement is met.
Since silicone rubber is an organic polymer, the silicon-oxygen bond and the silicon-carbon bond of which are present in the form of covalent bonds and weaker than the bonding bonds in glass and ceramic materials, the problem of material aging inevitably occurs under various operating stresses and environmental factors (such as surface discharge, corona discharge, ultraviolet irradiation, rain mist and the like), and the surface hydrophobicity is gradually reduced. The aging performance of the silicone rubber insulator can be correspondingly influenced by the production process, the formula and the structure of the insulator. The hydrophobic recovery property becomes slow with the prolonging of the service life, and the hydrophobic loss property becomes faster gradually. Under the continuous dirty and wet environment, a conductive layer is easily formed on the surface of the insulator, and the leakage current is gradually increased. Under the action of joule heat of leakage current, a drying band is formed on the surface of the insulator. When the electric field intensity between the dry bands reaches the breakdown field intensity of air, the dry bands are caused to discharge, and the energy generated by the discharge further aggravates the aging of the insulator. Under the combined action of hydrophobicity reduction and surface discharge, the insulator is easy to generate flashover accidents, and the safe and reliable operation of a power system is seriously threatened.
However, the composite insulator evaluation method according to the related art uses only the flashover voltage and the surface tracking resistance as evaluation indexes, and a composite insulator having a good flashover voltage and surface tracking resistance is suitable for an environment in which a conductive layer is easily formed on the surface, for example, a dirty and wet environment, but is not necessarily suitable for other extreme environments.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The present application mainly aims to provide an evaluation method, an evaluation apparatus, a computer-readable storage medium, a processor, and an evaluation system for a composite insulator, so as to solve the problem that the evaluation method for a composite insulator in the prior art is too one-sided.
In order to achieve the above object, according to one aspect of the present application, there is provided an evaluation method of a composite insulator, including: obtaining evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when the composite insulator is subjected to surface flashover in a discharge test, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test; and generating an evaluation report according to the evaluation data.
Optionally, the surface erosion data includes a surface byproduct content, and the internal erosion data includes an erosion depth and an erosion area ratio, the erosion area ratio being a ratio of a crack area to a cross-sectional area in a cross-section of the composite insulator.
Optionally, generating an evaluation report according to the evaluation data includes: and determining the grade of the surface tracking resistance of the composite insulator according to the flashover voltage.
Optionally, generating an evaluation report according to the evaluation data includes: and determining the grade of the resistance of the composite insulator according to the surface erosion data and the internal erosion data.
According to another aspect of the present application, there is provided an evaluation apparatus of a composite insulator, including: the device comprises an acquisition unit, a detection unit and a processing unit, wherein the acquisition unit is used for acquiring evaluation data of the composite insulator, the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when a discharge test is carried out on the composite insulator and flashover along the surface occurs, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the discharge test is carried out on the composite insulator; and the generating unit is used for generating an evaluation report according to the evaluation data.
According to still another aspect of the present application, there is provided a computer-readable storage medium including a stored program, wherein the program executes any one of the evaluation methods.
According to yet another aspect of the application, a processor for running a program is provided, wherein the program is run to perform any one of the evaluation methods.
According to still another aspect of the present application, there is provided an evaluation system including a discharge test apparatus for performing a discharge test on a composite insulator, and an evaluation apparatus for a composite insulator, the evaluation apparatus being configured to perform any one of the evaluation methods for a composite insulator.
According to the technical scheme, in the evaluation method, firstly, evaluation data of the composite insulator are obtained, the evaluation data comprise flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage when the composite insulator is subjected to a discharge test and is subjected to surface flashover, the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test, and then an evaluation report is generated according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 shows a flowchart of an evaluation method of a composite insulator according to an embodiment of the present application
Fig. 2 shows a schematic view of an evaluation device of a composite insulator according to an embodiment of the present application;
FIG. 3 shows a schematic view of a discharge testing apparatus according to an embodiment of the present application;
FIG. 4 shows an SEM image of the surface of the composite insulator of example 1;
fig. 5 shows an SEM image of the surface of the composite insulator of example 2;
FIG. 6 shows an SEM image of the composite insulator surface of example 3;
FIG. 7 shows an SEM image of the surface of the composite insulator of example 4;
FIG. 8 shows an SEM image of the surface of the composite insulator of example 5;
fig. 9 shows an SEM image of the surface of the composite insulator of comparative example 1; and
FIG. 10 shows erosion depth vs. SiO2Relationship curve of nano particles and erosion area ratio and SiO2Nanoparticle dependence.
Wherein the figures include the following reference numerals:
01. a composite insulator sample; 10. a power supply voltage regulator; 20. a high voltage voltmeter; 30. a step-up transformer; 40. a ground electrode; 50. and a high voltage electrode.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As mentioned in the background of the invention, in order to solve the above-mentioned problem that the evaluation method of the composite insulator in the prior art is too one-sided, in an exemplary embodiment of the present application, an evaluation method, an evaluation device, a computer-readable storage medium, a processor and an evaluation system of the composite insulator are provided.
According to an embodiment of the present application, there is provided a method of evaluating a composite insulator.
Fig. 1 is a flowchart of an evaluation method of a composite insulator according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:
step S101, obtaining evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when a discharge test is carried out on the composite insulator to generate surface flashover, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the discharge test is carried out on the composite insulator;
step S102, an evaluation report is generated according to the evaluation data.
In the evaluation method, firstly, evaluation data of the composite insulator are obtained, wherein the evaluation data comprise flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage when the composite insulator is subjected to surface flashover in a discharge test, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test, and then an evaluation report is generated according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
The composite insulator having a good surface tracking resistance is suitable for an environment in which a conductive layer is easily formed on the surface, for example, a wet and dirty environment, and the composite insulator having a good resistance is suitable for an environment in which a large stress is applied to the composite insulator, for example, an environment in which wind force is large.
It will also be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here.
In an embodiment of the present application, the surface erosion data includes a surface byproduct content, and the internal erosion data includes an erosion depth and an erosion area ratio, where the erosion area ratio is a ratio of a crack area to a cross-sectional area in a cross-section of the composite insulator. Specifically, the content of the surface by-product can directly reflect the degree of erosion of the surface of the composite insulator after flashover, the ratio of the erosion depth to the erosion area can directly reflect the degree of erosion of the interior of the composite insulator after flashover, and the degree of erosion of the composite insulator after flashover can be comprehensively evaluated according to the data, so that the quality of the resistance of the composite insulator can be determined.
The surface erosion data and the internal erosion data are not limited thereto, and those skilled in the art can select appropriate evaluation data according to actual conditions to evaluate the quality of the resistance of the composite insulator.
In an embodiment of the present application, generating an evaluation report according to the evaluation data includes: and determining the grade of the surface tracking resistance of the composite insulator according to the flashover voltage. Specifically, the grade of the surface tracking resistance of the composite insulator is determined according to the flashover voltage, that is, an appropriate grade of the composite insulator can be selected according to the requirement of the environment on the surface tracking resistance.
In an embodiment of the present application, generating an evaluation report according to the evaluation data includes: and determining the grade of the resistance of the composite insulator according to the surface erosion data and the internal erosion data. Specifically, the grade of the resistance of the composite insulator is determined according to the surface erosion data and the internal erosion data, and the composite insulator with the proper grade can be selected according to the requirement of the environment on the surface resistance.
The embodiment of the present application further provides an evaluation apparatus for a composite insulator, and it should be noted that the evaluation apparatus for a composite insulator according to the embodiment of the present application may be used to execute the evaluation method for a composite insulator according to the embodiment of the present application. The following describes an evaluation device for a composite insulator according to an embodiment of the present application.
Fig. 2 is a schematic view of an evaluation device of a composite insulator according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
an obtaining unit 100, configured to obtain evaluation data of a composite insulator, where the evaluation data includes a flashover voltage, surface erosion data, and internal erosion data, the flashover voltage is a voltage when a discharge test of the composite insulator is performed and a surface flashover occurs, and the surface erosion data and the internal erosion data are data obtained by detecting an erosion portion after the discharge test of the composite insulator is performed;
a generating unit 200, configured to generate an evaluation report according to the evaluation data.
In the above-described evaluation device, the acquisition means acquires evaluation data of the composite insulator, the evaluation data including a flashover voltage, surface erosion data, and internal erosion data, the flashover voltage being a voltage at which a creeping flashover occurs when the composite insulator is subjected to a discharge test, the surface erosion data and the internal erosion data being data obtained by detecting an erosion site after the composite insulator is subjected to the discharge test, and the generation means generates an evaluation report based on the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
The composite insulator having a good surface tracking resistance is suitable for an environment in which a conductive layer is easily formed on the surface, for example, a wet and dirty environment, and the composite insulator having a good resistance is suitable for an environment in which a large stress is applied to the composite insulator, for example, an environment in which wind force is large.
In an embodiment of the present application, the surface erosion data includes a surface byproduct content, and the internal erosion data includes an erosion depth and an erosion area ratio, where the erosion area ratio is a ratio of a crack area to a cross-sectional area in a cross-section of the composite insulator. Specifically, the content of the surface by-product can directly reflect the degree of erosion of the surface of the composite insulator after flashover, the ratio of the erosion depth to the erosion area can directly reflect the degree of erosion of the interior of the composite insulator after flashover, and the degree of erosion of the composite insulator after flashover can be comprehensively evaluated according to the data, so that the quality of the resistance of the composite insulator can be determined.
The surface erosion data and the internal erosion data are not limited thereto, and those skilled in the art can select appropriate evaluation data according to actual conditions to evaluate the quality of the resistance of the composite insulator.
In an embodiment of the present application, the generating unit includes a first determining module, and the first determining module is configured to determine a level of surface tracking resistance of the composite insulator according to the flashover voltage. Specifically, the grade of the surface tracking resistance of the composite insulator is determined according to the flashover voltage, that is, an appropriate grade of the composite insulator can be selected according to the requirement of the environment on the surface tracking resistance.
In an embodiment of the present application, the generating unit includes a second determining module, and the second determining module is configured to determine a level of resistance of the composite insulator according to the surface erosion data and the internal erosion data. Specifically, the grade of the resistance of the composite insulator is determined according to the surface erosion data and the internal erosion data, and the composite insulator with the proper grade can be selected according to the requirement of the environment on the surface resistance.
The embodiment of the application also provides an evaluation system, which comprises a discharge test device and an evaluation device of the composite insulator, wherein the discharge test device is used for performing a discharge test on the composite insulator, and the evaluation device is used for executing any one of the evaluation methods of the composite insulator.
The evaluation system comprises a discharge test device and a composite insulator evaluation device, an acquisition unit acquires evaluation data of the composite insulator, the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is voltage when the composite insulator is subjected to a discharge test and a surface flashover occurs, the surface erosion data and the internal erosion data are data obtained by detecting an erosion part after the composite insulator is subjected to the discharge test, and a generation unit generates an evaluation report according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
In an embodiment of the present application, as shown in fig. 3, the discharge test apparatus includes a power supply regulator 10, a high voltage meter 20, a step-up transformer 30, a grounding electrode 40, and a high voltage electrode 50, wherein a voltage is provided by the power supply regulator 10, a voltage range is 0-110 kV, the voltage is applied to two ends of the composite insulator sample 01 through the grounding electrode 40 and the high voltage electrode 50 by connecting a resistor, the grounding electrode 40 is connected to the ground, the resistor is connected to the step-up transformer 30, and the flashover voltage is measured by the high voltage meter 20.
In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions of the present application will be described below with reference to specific embodiments.
Example 1
The preparation method of the composite insulator sample comprises the following steps: mixing silicon rubber and SiO2Mixing the nano particles according to a mass ratio of 999:1, mechanically stirring the mixture, then carrying out ultrasonic vibration for 120s, then vacuumizing for 1800s, airing at room temperature, and finally cutting the aired composite insulator to obtain a plurality of composite insulator samples with the length of 70mm, the width of 30mm and the thickness of 5 mm.
Example 2
The difference from example 1 is that:
in the composite insulator sample, silicone rubber and SiO2The mass ratio of the nanoparticles was 997: 3.
Example 3
The difference from example 1 is that:
in the composite insulator sample, silicone rubber and SiO2The mass ratio of the nanoparticles was 995: 5.
Example 4
The difference from example 1 is that:
in the composite insulator sample, silicone rubber and SiO2The mass ratio of the nanoparticles was 993: 7.
Example 5
The difference from example 1 is that:
in the composite insulator sample, silicone rubber and SiO2The mass ratio of the nanoparticles was 99: 1.
Comparative example 1
The composite insulator sample had only silicone rubber as a constituent.
The composite insulator samples of examples 1 to 5 and comparative example were subjected to a discharge test using a discharge test apparatus until flashover occurred, the test was repeated 10 times for each example to obtain an average flashover voltage, and then the composite insulator samples after the discharge test were subjected to SEM scanning to obtain average surface erosion data and average internal erosion data.
From the above, the average flashover voltage of examples 1 to 5 is higher than that of comparative example 1, and the average flashover voltage of example 2 is the largest, i.e., the surface tracking resistance of example 2 is the best, as shown in fig. 4 to 9, the composite insulator sample has a black stripe on the surface, which is a carbonization mark generated during discharge, the sample surface near the lower electrode is seriously damaged, and some black and white substances are generated, as the content of the nano particles in the composite insulator sample increases, the color of the drying stripe gradually becomes lighter, the content of the generated black and white substances also decreases, the surface by-product content of example 5 is the smallest, as shown in fig. 10, curve 1 is the erosion depth and SiO2The relation curve of the nanoparticles, curve 2 is the ratio of the erosion area to the SiO2The nanoparticle relationship curve, the erosion depth and erosion area ratio of example 5 are minimal, and it can be seen that the composite insulator sample of example 5 has the best resistance.
The evaluation device comprises a processor and a memory, the acquisition unit, the generation unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. One or more than one kernel can be set, and the problem that the evaluation method of the composite insulator in the prior art is too unilateral is solved by adjusting kernel parameters.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium on which a program is stored, the program implementing the above-described evaluation method when executed by a processor.
The embodiment of the invention provides a processor, wherein the processor is used for running a program, and the evaluation method is executed when the program runs.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, at least the following steps are realized:
step S101, obtaining evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when a discharge test is carried out on the composite insulator to generate surface flashover, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the discharge test is carried out on the composite insulator;
step S102, an evaluation report is generated according to the evaluation data.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:
step S101, obtaining evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when a discharge test is carried out on the composite insulator to generate surface flashover, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the discharge test is carried out on the composite insulator;
step S102, an evaluation report is generated according to the evaluation data.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage media comprise: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the evaluation method, firstly, evaluation data of the composite insulator are obtained, wherein the evaluation data comprise flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage when the composite insulator is subjected to a discharge test and is subjected to surface flashover, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test, and then an evaluation report is generated according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
2) In the evaluation device, the acquisition unit acquires evaluation data of the composite insulator, the evaluation data includes flashover voltage, surface erosion data and internal erosion data, the flashover voltage is voltage when the composite insulator is subjected to a discharge test and a surface flashover occurs, the surface erosion data and the internal erosion data are data obtained by detecting an erosion part after the composite insulator is subjected to the discharge test, and the generation unit generates an evaluation report according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
3) The evaluation system comprises a discharge test device and a composite insulator evaluation device, an acquisition unit acquires evaluation data of the composite insulator, the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is voltage when the composite insulator is subjected to a discharge test and is subjected to surface flashover, the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test, and a generation unit generates an evaluation report according to the evaluation data. The evaluation method adopts the flashover voltage, the surface erosion data and the internal erosion data as evaluation data, so that the surface tracking resistance of the composite insulator is evaluated through the flashover voltage, the resistance of the composite insulator is evaluated through the surface erosion data and the internal erosion data, namely the corrosion resistance of the composite insulator is considered from the two aspects of the surface tracking resistance and the resistance, the composite insulator is convenient to select suitable composite insulators in different application environments, and the problem that the composite insulator evaluation method in the prior art is too flat is solved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A method for evaluating a composite insulator, comprising:
obtaining evaluation data of the composite insulator, wherein the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when the composite insulator is subjected to surface flashover in a discharge test, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the composite insulator is subjected to the discharge test;
and generating an evaluation report according to the evaluation data.
2. The method of claim 1, wherein the surface erosion data includes surface byproduct content and the internal erosion data includes erosion depth and erosion area ratio, the erosion area ratio being a ratio of crack area to cross-sectional area in a cross-section of the composite insulator.
3. The evaluation method of claim 1, wherein generating an evaluation report based on the evaluation data comprises:
and determining the grade of the surface tracking resistance of the composite insulator according to the flashover voltage.
4. The evaluation method of claim 1, wherein generating an evaluation report based on the evaluation data comprises:
and determining the grade of the resistance of the composite insulator according to the surface erosion data and the internal erosion data.
5. An evaluation device for a composite insulator, comprising:
the device comprises an acquisition unit, a detection unit and a processing unit, wherein the acquisition unit is used for acquiring evaluation data of the composite insulator, the evaluation data comprises flashover voltage, surface erosion data and internal erosion data, the flashover voltage is the voltage of the composite insulator when a discharge test is carried out on the composite insulator and flashover along the surface occurs, and the surface erosion data and the internal erosion data are data obtained by detecting erosion parts after the discharge test is carried out on the composite insulator;
and the generating unit is used for generating an evaluation report according to the evaluation data.
6. A computer-readable storage medium characterized by comprising a stored program, wherein the program executes the evaluation method according to any one of claims 1 to 4.
7. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to execute the evaluation method according to any one of claims 1 to 4 when running.
8. An evaluation system comprising a discharge test apparatus and a composite insulator evaluation apparatus, wherein the discharge test apparatus is used for performing a discharge test on a composite insulator, and the evaluation apparatus is used for executing the composite insulator evaluation method according to any one of claims 1 to 4.
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| CN116203333A (en) * | 2023-01-10 | 2023-06-02 | 国网山东省电力公司超高压公司 | Comprehensive evaluation system and evaluation method for aging state of composite insulator material |
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| CN110967602A (en) * | 2019-11-28 | 2020-04-07 | 南方电网科学研究院有限责任公司 | Composite insulator aging degree evaluation method, device, equipment and storage medium |
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