GIS partial discharge detection module, method, device, electronic equipment and storage medium

Through the GIS partial discharge detection module and method, the partial discharge sensor unit and sampling module are used for comparison, which solves the problem of quantitative detection during the installation of GIS equipment and improves the safety of the power system.

CN118937917BActive Publication Date: 2025-09-09ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY +1
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Patent Information

Application Number
CN202410996693.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-09-09
Estimated Expiration
2044-07-24

AI Technical Summary

Technical Problem

In the existing technology, GIS equipment cannot perform effective quantitative partial discharge detection during installation, resulting in insulation hazards not being discovered in time, which may cause serious damage to the power system.

Method used

The GIS partial discharge detection module, including the partial discharge sensor unit and the sampling module, is used to inject the target picovolt value and perform comparison to achieve quantitative partial discharge detection of GIS equipment, thereby reducing insulation risks during the installation process.

Benefits of technology

It realizes quantitative partial discharge detection of GIS equipment, reduces insulation risks during installation, and improves the safety of the power system.

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Abstract

This application provides a GIS partial discharge detection module, method, device, electronic device, and storage medium. The GIS partial discharge detection module includes a live detection switch and a partial discharge sensor unit; the partial discharge sensor unit is connected in parallel to both ends of the live detection switch; the partial discharge sensor unit and the live detection switch are connected to a lightning arrester. This application enables quantitative partial discharge detection of GIS equipment, reducing insulation risks caused by GIS equipment installation and improving power system safety.
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Description

Technical field

[0001] Embodiments of the present invention relate to the field of partial discharge detection in power systems, and in particular to a GIS partial discharge detection module, method, device, electronic equipment, and storage medium. [Background Technology]

[0002] For GIS equipment, partial discharge measurement is required. In the existing technology, the pulse current method can be used to measure the partial discharge value using coupling capacitors. Although this detection method has high accuracy, it is limited by the structural conditions of the combined electrical equipment. In some situations, partial discharge detection using coupling capacitors cannot be performed. Therefore, voltage withstand tests and partial discharge tests are performed during on-site handover and acceptance.

[0003] However, partial discharge tests are mostly conducted using high-frequency or ultrasonic instruments, which cannot achieve quantitative measurement. Therefore, insulation hazards caused during the installation process cannot be effectively detected. As a result, GIS equipment may cause serious damage to the power system after it is put into operation. [Summary of the invention]

[0004] The embodiments of the present invention provide a GIS partial discharge detection module, method, device, electronic device and storage medium to perform quantitative partial discharge detection on GIS equipment, reduce insulation risks caused by GIS equipment during installation, and improve the safety of the power system.

[0005] In a first aspect, the present application provides a GIS partial discharge detection module, comprising:

[0006] Sampling module and partial discharge sensing unit;

[0007] Wherein, the partial discharge sensing unit is connected in parallel to both ends of the sampling module;

[0008] The partial discharge sensing unit and the sampling module are connected to the lightning arrester;

[0009] The lightning arrester is present in the GIS equipment;

[0010] Wherein, the partial discharge sensing unit includes: at least one of a current transformer and a voltage transformer.

[0011] One possible approach is that the sampling module is an electrically charged detection switch or a sampling valve.

[0012] In a second aspect, the present application provides a GIS partial discharge detection method, using the module described in the first aspect, wherein the sampling module is a live detection switch, and the GIS device includes multiple GIS device partial discharge test points. The partial discharge detection result corresponding to a GIS device partial discharge test point is determined in the following manner:

[0013] injecting a target picovolt value into the one GIS device partial discharge test point when the GIS device is not powered on;

[0014] Obtain a picoule value output by a partial discharge sensing unit when the GIS device is powered on, compare the value with the target picoule value, generate a first comparison result, and determine a partial discharge test result of the GIS device based on the first comparison result.

[0015] In one possible manner, the target picoule value ranges from 10 picoules to 100 picoules.

[0016] In a third aspect, the present application provides a GIS partial discharge detection method, using the module described in the first aspect, wherein the sampling module is a sampling valve plate, and the GIS device includes multiple GIS device partial discharge test points. The partial discharge detection result corresponding to a GIS device partial discharge test point is determined in the following manner:

[0017] When the GIS device is powered on, a target picocubic meter value is injected into the partial discharge test point of the GIS device, and the current picocubic meter value output by the partial discharge sensing unit is obtained and compared with the partial discharge signal threshold to generate a second comparison result, and the online detection result of the GIS device is determined based on the second comparison result.

[0018] One possible approach is to inject a target picovolt value into a partial discharge test point of the GIS device when the GIS device is powered on, obtain a current picovolt value output by a partial discharge sensing unit, and compare it with a partial discharge signal threshold to generate a second comparison result, and determine the online detection result of the GIS device based on the second comparison result.

[0019] When the GIS device is powered on, if the current picovolt value output by the partial discharge sensor unit is greater than the partial discharge signal threshold, an abnormality message is sent, and the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on is stored.

[0020] In a fourth aspect, the present application provides a GIS partial discharge detection device, using the GIS partial discharge detection module as described in the first aspect, wherein the sampling module is a live detection switch, comprising:

[0021] Injection module: used for injecting a target picovolt value into the PD test point of the GIS device when the GIS device is not powered on;

[0022] Comparison module: used to obtain the picoule value output by the partial discharge sensor unit when the GIS device is powered on, and compare it with the target picoule value to generate a first comparison result, and determine the partial discharge test result of the GIS device based on the first comparison result.

[0023] In a sixth aspect, the present application provides a GIS partial discharge detection device, using the GIS partial discharge detection module as described in the second aspect, wherein the sampling module is a sampling valve plate, comprising:

[0024] Acquisition module: used to inject the target picovolt value into the partial discharge test point of the GIS device when the GIS device is powered on, and obtain the current picovolt value output by the partial discharge sensor unit, and compare it with the partial discharge signal threshold to generate a second comparison result, and determine the online detection result of the GIS device based on the second comparison result.

[0025] In a seventh aspect, an embodiment of the present invention provides an electronic device, including:

[0026] at least one processor; and

[0027] at least one memory in communication with the processor, wherein:

[0028] The memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the method provided by the third aspect or the fourth aspect.

[0029] In an eighth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to perform the method provided in the third aspect or the fourth aspect.

[0030] It should be understood that the second to eighth aspects of the embodiments of the present invention are consistent with the technical solutions of the first aspect of the embodiments of the present invention, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar, which will not be repeated here.

Brief Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of a GIS partial discharge detection module provided in an embodiment of the present application;

[0033] Figure 2 A flow chart of a GIS partial discharge detection method provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of another GIS partial discharge detection module provided in an embodiment of the present application;

[0035] Figure 4 A flow chart of another GIS partial discharge detection method provided in an embodiment of the present application;

[0036] Figure 5 A structural diagram of a GIS partial discharge detection device provided in an embodiment of the present application;

[0037] Figure 6 A structural diagram of another GIS partial discharge detection device provided in an embodiment of the present application;

[0038] Figure 7 This is a structural diagram of an electronic device provided in an embodiment of the present application. [Specific implementation method]

[0039] In order to better understand the technical solutions of the embodiments of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] It should be clear that the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the embodiments of the present invention.

[0041] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. The singular forms "a", "an", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0042] For GIS equipment, partial discharge measurement is required. In the existing technology, the pulse current method can be used to measure the partial discharge value using coupling capacitors. Although this detection method has high accuracy, it is limited by the structural conditions of the combined electrical equipment. In some situations, partial discharge detection using coupling capacitors cannot be performed. Therefore, voltage withstand tests and partial discharge tests are performed during on-site handover and acceptance.

[0043] However, partial discharge tests are mostly conducted using high-frequency or ultrasonic instruments, which cannot achieve quantitative measurement. Therefore, insulation hazards caused during the installation process cannot be effectively detected. As a result, GIS equipment may cause serious damage to the power system after it is put into operation.

[0044] In order to perform quantitative partial discharge detection on GIS equipment, reduce insulation risks caused by GIS equipment during installation, and improve the safety of the power system, the present application provides a GIS partial discharge detection module, method, device, electronic device and storage medium.

[0045] The terms used in this application are explained here:

[0046] GIS equipment: A collection of high-voltage electrical equipment, typically using a modular structure. Components such as circuit breakers, disconnectors, grounding switches, and transformers can be freely combined. Improving its overall performance depends on improving the performance of each component.

[0047] Partial discharge (PD) refers to the localized discharge that occurs within the insulation of power equipment under the influence of a sufficiently strong electric field. This discharge is limited to causing a local short (bridge) in the insulation between conductors without forming a conductive path. Each PD has some impact on the insulating medium. Mild PDs have less impact on the insulation of power equipment, resulting in a slower decrease in insulation strength; however, strong PDs can cause a rapid decrease in insulation strength. This is a significant factor in the insulation damage of high-voltage power equipment. Therefore, when designing the insulation of high-voltage power equipment, it is important to consider that strong PD within the insulation structure is not permitted under long-term operating voltages. Operating equipment must be monitored closely, and when PD exceeds a certain level, the equipment should be removed from service for inspection or replacement.

[0048] Pico: The unit of partial discharge value.

[0049] In this application, in order to sample the partial discharge current, a sampling unit is specifically provided, which can be a live detection switch or a sampling valve. Two specific examples are described below:

[0050] First, a GIS partial discharge detection module according to an embodiment of the present application is described.

[0051] Combine Figure 1 , in a GIS partial discharge detection module provided in this application, including

[0052] Live detection switch and partial discharge sensor unit;

[0053] Wherein, the partial discharge sensing unit is connected in parallel to both ends of the charged detection switch;

[0054] The partial discharge sensing unit and the live detection switch are connected to the lightning arrester;

[0055] The lightning arrester is present in the GIS equipment.

[0056] Specifically, the partial discharge sensing unit includes: at least one of a current transformer and a voltage transformer.

[0057] Combined with this GIS partial discharge detection module, partial discharge tests can be performed during on-site acceptance to achieve quantitative partial discharge detection, reduce insulation risks caused by GIS equipment during installation, and improve the safety of the power system.

[0058] Based on the above-mentioned GIS partial discharge detection module, the present application further provides a GIS partial discharge detection method. According to the prior art, the GIS device includes multiple GIS device partial discharge test points. For example, test points can be set at the GIS arm, the circuit breaker break, and the isolation switch. Specifically, the partial discharge detection result corresponding to a GIS device partial discharge test point A can be determined in the following manner:

[0059] Reference Figure 2 First, execute step S101: when the GIS device is not powered on, inject a target picoules value into the partial discharge test point of the GIS device. The so-called target picoules value is a quantitative standard picoules value, and its value range can be between 10 picoules and 100 picoules. In other words, when the GIS device is not powered on, use the square wave calibration device to inject a given value of 10 picoules to 100 picoules into the partial discharge test point A of the GIS device, and then power on the GIS device, and execute step S102: obtain the picoules value output by the partial discharge sensor unit when the GIS device is powered on, and compare it with the target picoules value to generate a first comparison result, and determine the partial discharge test result of the GIS device based on the first comparison result.

[0060] Specifically, if the picovolt value output by the partial discharge sensor unit is closer to the target picovolt value, the partial discharge phenomenon is smaller and the insulation hidden danger caused during the installation process is smaller.

[0061] Through the above implementation, quantitative partial discharge detection can be performed on GIS equipment, reducing insulation risks caused by the installation of GIS equipment.

[0062] The following describes another GIS partial discharge detection module according to an embodiment of the present application:

[0063] Different from the previous GIS partial discharge detection module, this scenario is aimed at online monitoring of partial discharge.

[0064] Combine Figure 3 , a GIS partial discharge detection module provided in this application includes:

[0065] Sampling valve and partial discharge sensing unit;

[0066] Wherein, the partial discharge sensing unit is connected in parallel to both ends of the sampling valve plate;

[0067] The partial discharge sensing unit and the sampling valve plate are connected to the lightning arrester;

[0068] The lightning arrester is present in the GIS equipment.

[0069] Specifically, the partial discharge sensing unit includes: at least one of a current transformer and a voltage transformer, and the sampling valve plate can be a ZnO sampling valve plate.

[0070] Reference Figure 4 In conjunction with another GIS partial discharge detection module provided in this application, correspondingly, an embodiment of this application also provides another GIS partial discharge detection method, which specifically includes the following steps:

[0071] S201: When the GIS device is powered on, a target picocubic meter value is injected into a partial discharge test point of the GIS device, and a current picocubic meter value output by the partial discharge sensing unit is obtained, and compared with the partial discharge signal threshold to generate a second comparison result, and an online detection result of the GIS device is determined based on the second comparison result.

[0072] Specifically, the partial discharge signal threshold is the maximum allowable value of the partial discharge signal allowed to be output under a given injection target picocubic meter value. When the current picocubic meter value output by the partial discharge sensor unit is greater than the partial discharge signal threshold, it means that the partial discharge phenomenon is relatively serious and the equipment should be repaired.

[0073] In some embodiments, if the current picocubic meter value output by the partial discharge sensor unit when the GIS device is powered on is greater than the partial discharge signal threshold, an abnormal information is sent and the current picocubic meter value output by the partial discharge sensor unit when the GIS device is powered on is stored.

[0074] Through the above steps, the partial discharge measurement results can be recorded and the data can be kept accessible. At the same time, GIS equipment maintenance personnel can promptly repair the equipment based on abnormal information.

[0075] Reference Figure 5 The present application also provides a GIS partial discharge detection device, which uses a GIS partial discharge detection module provided by the present application, including:

[0076] Injection module: used for injecting a target picovolt value into the PD test point of the GIS device when the GIS device is not powered on;

[0077] Comparison module: used to obtain the picoule value output by the partial discharge sensor unit when the GIS device is powered on, and compare it with the target picoule value to generate a first comparison result, and determine the partial discharge test result of the GIS device based on the first comparison result.

[0078] Figure 5 The GIS partial discharge detection device provided in the embodiment shown can be used to implement the embodiment of the present invention Figure 2 The technical solution of the method embodiment shown, its implementation principle and technical effects can be further referred to the relevant description in the method embodiment.

[0079] Reference Figure 6The present application provides another GIS partial discharge detection device, using another GIS partial discharge detection module provided in the present application, including:

[0080] Acquisition module: acquires the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on, compares it with the partial discharge signal threshold, generates a second comparison result, and determines the online detection result of the GIS device based on the second comparison result.

[0081] Figure 6 Another GIS partial discharge detection device provided in the embodiment shown can be used to implement the embodiment of the present invention Figure 3 The technical solution of the method embodiment shown, its implementation principle and technical effects can be further referred to the relevant description in the method embodiment.

[0082] Figure 7 FIG. 1 is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Figure 7 As shown, the electronic device may include at least one processor; and at least one memory in communication with the processor, wherein the memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the embodiment of the present invention. Figures 1 to 4 The illustrated embodiment provides a GIS partial discharge detection method.

[0083] Figure 7 A block diagram is shown of an exemplary electronic device suitable for implementing exemplary embodiments of the present invention. Figure 7 The electronic device shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0084] like Figure 7 As shown, the electronic device is implemented as a general-purpose computing device. Components of the electronic device may include, but are not limited to, one or more processors 410, a memory 430, and a communication bus 440 connecting various system components (including the memory 430 and the processing unit 410).

[0085] Communication bus 440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. Examples of such architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnection (PCI) bus.

[0086] Electronic devices typically include a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, removable and non-removable media.

[0087] Memory 430 may include computer-readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various embodiments of the present invention.

[0088] A program / utility having a set (at least one) of program modules may be stored in memory 430. Such program modules include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. The program modules generally perform the functions and / or methods described in the embodiments of the present invention.

[0089] The processor 410 executes various functional applications and data processing by running the programs stored in the memory 430, such as implementing the embodiments of the present invention. Figures 1 to 4 The illustrated embodiment provides a GIS partial discharge detection method.

[0090] An embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, which enable the computer to execute the embodiment of the present invention. Figures 1 to 4 The illustrated embodiment provides a GIS partial discharge detection method.

[0091] The above-mentioned computer-readable storage medium can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with 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, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or device.

[0092] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0093] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0094] The computer program code for performing the operations of the embodiments of the present invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving 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, using an Internet service provider to connect via the Internet).

[0095] The foregoing description describes specific embodiments of the present invention. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0096] In the description of the embodiments of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In the embodiments of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in the embodiments of the present invention and the features of different embodiments or examples, unless they are mutually inconsistent.

[0097] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the embodiments of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0098] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred implementation of the embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the invention pertain.

[0099] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0100] It should be noted that the terminals involved in the embodiments of the present invention may include but are not limited to personal computers (Personal Computer; hereinafter referred to as: PC), personal digital assistants (Personal Digital Assistant; hereinafter referred to as: PDA), wireless handheld devices, tablet computers (Tablet Computer), mobile phones, MP3 players, MP4 players, etc.

[0101] In the several embodiments provided in the embodiments of the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection of the devices or units through some interfaces, which may be electrical, mechanical or other forms.

[0102] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0103] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to perform some of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, and other media that can store program code.

[0104] The above description is only a preferred embodiment of the embodiment of the present invention and is not intended to limit the embodiment of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiment of the present invention should be included in the scope of protection of the embodiment of the present invention.

Claims

1. A GIS partial discharge detection module, characterized in that: Applied to detect GIS equipment, including: Sampling module and partial discharge sensing unit; Wherein, the partial discharge sensing unit is connected in parallel to both ends of the sampling module; The partial discharge sensing unit and the sampling module are connected to the lightning arrester; The lightning arrester is present in the GIS equipment; Wherein, the partial discharge sensing unit includes: at least one of a current transformer and a voltage transformer; The sampling module is an electrified detection switch or a sampling valve; If the sampling module is a live detection switch, and the GIS device includes multiple GIS device partial discharge test points, the following method is used to determine the partial discharge test result corresponding to a GIS device partial discharge test point: injecting a target picovolt value into the one GIS device partial discharge test point when the GIS device is not powered on; When the GIS device is powered on, a picocubic meter value output by a partial discharge sensing unit is obtained, and the picocubic meter value is compared with the target picocubic meter value to generate a first comparison result, and a partial discharge test result of the GIS device is determined based on the first comparison result; If the sampling module is a sampling valve plate, and the GIS device includes multiple GIS device partial discharge test points, the following method is used to determine the partial discharge test result corresponding to a GIS device partial discharge test point: When the GIS device is powered on, a target picocubic meter value is injected into the partial discharge test point of the GIS device, and a current picocubic meter value output by the partial discharge sensing unit is obtained, and the current picocubic meter value is compared with the partial discharge signal threshold to generate a second comparison result, and an online detection result of the GIS device is determined based on the second comparison result; If the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on is greater than the partial discharge signal threshold, an abnormality message is sent, and the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on is stored.

2. A GIS partial discharge detection method, characterized in that: Using the module according to claim 1, the sampling module is a live detection switch, the GIS device includes multiple GIS device partial discharge test points, and the partial discharge detection result corresponding to a GIS device partial discharge test point is determined in the following manner: injecting a target picovolt value into the one GIS device partial discharge test point when the GIS device is not powered on; When the GIS device is powered on, a picoule value output by a partial discharge sensing unit is obtained and compared with the target picoule value to generate a first comparison result, and a partial discharge test result of the GIS device is determined based on the first comparison result.

3. The method according to claim 2, characterized in that The target picoule value ranges from 10 picoules to 100 picoules.

4. A GIS partial discharge detection method using the module according to claim 1, characterized in that: The sampling module is a sampling valve plate, and the GIS device includes multiple GIS device partial discharge test points. The following method is used to determine the partial discharge test result corresponding to a GIS device partial discharge test point: When the GIS device is powered on, a target picocubic meter value is injected into the partial discharge test point of the GIS device, and a current picocubic meter value output by the partial discharge sensing unit is obtained, and the current picocubic meter value is compared with the partial discharge signal threshold to generate a second comparison result, and an online detection result of the GIS device is determined based on the second comparison result; If the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on is greater than the partial discharge signal threshold, an abnormality message is sent, and the current picovolt value output by the partial discharge sensor unit when the GIS device is powered on is stored.

5. A GIS partial discharge detection device, using the GIS partial discharge detection module according to claim 1, wherein if the sampling module is a live detection switch, it is characterized in that: include: Injection module: used for injecting a target picovolt value into the partial discharge test point of the GIS device when the GIS device is not powered on; a comparison module configured to obtain a picoule value output by a partial discharge sensing unit when the GIS device is powered on, compare the picoule value with the target picoule value, generate a first comparison result, and determine a partial discharge test result of the GIS device based on the first comparison result; If the sampling module is a sampling valve plate, the GIS partial discharge detection module includes: an acquisition module, which is used to inject a target picocubic meter value into the partial discharge test point of the GIS device when the GIS device is powered on, and obtain the current picocubic meter value output by the partial discharge sensor unit, and compare it with the partial discharge signal threshold to generate a second comparison result, and determine the online detection result of the GIS device based on the second comparison result; if the current picocubic meter value output by the partial discharge sensor unit when the GIS device is powered on is greater than the partial discharge signal threshold, an abnormal information is sent, and the current picocubic meter value output by the partial discharge sensor unit when the GIS device is powered on is stored.

6. An electronic device, characterized in that: include: at least one processor; as well as at least one memory in communication with the processor, wherein: The memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the method according to any one of claims 2 to 4.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method according to any one of claims 2 to 4.

Citation Information

Patent Citations

  • Local discharge detection equipment and method of switch cabinet

    CN108427068A

  • Transformer partial discharge test square wave calibration circuit of oil and gas bushing structure and calibration method

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  • Combined switch cabinet partial discharge detection system based on ultrasonic detection

    CN113311296A

  • Power circuit of monitor for lightning arrester

    CN201754533U