Gas-insulated metal-enclosed switchgear detection method and device

Abstract

The present invention discloses a detection method and device for gas-insulated metal-enclosed switchgear. The method comprises: obtaining a target ultra-high frequency discharge spectrum; determining a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on distribution characteristics when determining that the partial discharge amplitude is within a preset amplitude range; determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database; obtaining a target internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the first internal metal residue identification result and the second internal metal residue identification result. The present invention solves the technical problem that the detection method of the gas-insulated metal-enclosed switchgear in the related art cannot accurately identify the internal metal residues, thereby resulting in low application safety of the gas-insulated metal-enclosed switchgear.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-insulated metal-enclosed switchgear detection, and in particular to a method and a device for detecting gas-insulated metal-enclosed switchgear. Background Art

[0002] The local detection methods for gas-insulated metal-enclosed switchgear mainly include pulse current method, ultrasonic detection method, chemical detection method, optical detection method, infrared detection method and other methods. These methods can perform quantitative and positioning detection of local discharge by detecting the electric pulses, ultrasonic waves, chemical products, etc. generated during the local discharge process. However, the above methods all have certain limitations. For example, the pulse current method has a low measurement frequency, a narrow frequency band, relatively small amount of information, and weak anti-interference ability. The chemical method is not as sensitive as the electrical and acoustic detection methods in detecting local discharges, and it is difficult to detect discharge faults that occur in a short period of time. As a result, it is impossible to accurately identify the metal residues inside the gas-insulated metal-enclosed switchgear, and there are certain risks in the application of the equipment.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] An embodiment of the present invention provides a method and device for detecting a gas-insulated metal-enclosed switchgear, so as to at least solve the technical problem that the detection method of the gas-insulated metal-enclosed switchgear in the related art cannot accurately identify internal metal residues, thereby resulting in low application safety of the gas-insulated metal-enclosed switchgear.

[0005] According to one aspect of an embodiment of the present invention, a detection method for a gas-insulated metal-enclosed switchgear is provided, comprising: obtaining a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; determining a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when it is determined that the local discharge amplitude is within a preset amplitude range; determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the spectrum database pre-stores a correspondence between a plurality of ultra-high frequency discharge spectra and residue size characteristics; obtaining a target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear based on the first internal metal residue identification result and the second internal metal residue identification result, wherein the target internal metal residue identification result includes a target size characteristic of the internal metal residue of the gas-insulated metal-enclosed switchgear.

[0006] Optionally, when it is determined that the local discharge amplitude is within the preset amplitude range, the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear is determined based on the above-mentioned distribution characteristics, including: when it is determined that the local discharge amplitude is within the preset amplitude range, based on the above-mentioned distribution characteristics, determining the discharge characteristics inside the gas-insulated metal-enclosed switchgear, wherein the above-mentioned discharge characteristics are any one of the following: surface discharge characteristics, corona discharge characteristics and suspended discharge characteristics; based on the above-mentioned discharge characteristics, determining the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear, wherein the first internal metal residue identification result includes the first size characteristics of the metal residues inside the gas-insulated metal-enclosed switchgear.

[0007] Optionally, the above-mentioned determination of the discharge characteristics inside the gas-insulated metal-enclosed switchgear based on the above-mentioned distribution characteristics includes: when it is determined that the above-mentioned distribution characteristics indicate that the above-mentioned local discharge phases are concentrated in the first preset phase interval and the second preset phase interval, and the above-mentioned local discharge amplitude corresponding to the above-mentioned first preset phase interval is greater than the above-mentioned local discharge amplitude corresponding to the above-mentioned second preset phase interval, determining that the above-mentioned discharge characteristics are the above-mentioned surface discharge characteristics; when it is determined that the above-mentioned distribution characteristics indicate that the above-mentioned local discharge phases are concentrated in the above-mentioned first preset phase interval and the above-mentioned second preset phase interval, and the above-mentioned local discharge amplitude corresponding to the above-mentioned first preset phase interval is less than the above-mentioned local discharge amplitude corresponding to the above-mentioned second preset phase interval, determining that the above-mentioned discharge characteristics are the above-mentioned corona discharge characteristics; when it is determined that the above-mentioned distribution characteristics indicate that the above-mentioned local discharge phases are concentrated in the above-mentioned first preset phase interval and the above-mentioned second preset phase interval, and the above-mentioned local discharge amplitude corresponding to the above-mentioned first preset phase interval is equal to the above-mentioned local discharge amplitude corresponding to the above-mentioned second preset phase interval, determining that the above-mentioned discharge characteristics are the above-mentioned suspended discharge characteristics.

[0008] Optionally, the above-mentioned determination of the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the above-mentioned discharge characteristics includes: when it is determined that the above-mentioned discharge characteristics are the above-mentioned surface discharge characteristics, determining the above-mentioned first internal metal residue identification result as: the existence of a first metal residue inside the gas-insulated metal-enclosed switchgear, whose residue size characteristics are that the residue size is greater than a first size threshold, and whose curvature radius is greater than a first curvature radius threshold; when it is determined that the above-mentioned discharge characteristics are the above-mentioned corona discharge characteristics, determining the above-mentioned first internal metal residue identification result as: the existence of a second metal residue inside the gas-insulated metal-enclosed switchgear, whose residue size characteristics are that the residue size is less than a second size threshold, and whose curvature radius is less than a second curvature radius threshold; when it is determined that the above-mentioned discharge characteristics are the above-mentioned suspended discharge characteristics, determining the above-mentioned first internal metal residue identification result as: the existence of a third metal residue inside the gas-insulated metal-enclosed switchgear, whose residue size characteristics are that the residue size is less than the above-mentioned first size threshold, and whose curvature radius is greater than the above-mentioned first curvature radius threshold.

[0009] Optionally, the above-mentioned determination of the second internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear based on the above-mentioned target UHF discharge spectrum and a preset spectrum database includes: respectively determining the similarity between the above-mentioned multiple UHF discharge spectra in the spectrum database and the above-mentioned target UHF discharge spectrum; determining the first UHF discharge spectrum with the greatest similarity from the above-mentioned multiple UHF discharge spectra; and determining the above-mentioned second internal metal residue identification result according to the residue size characteristics corresponding to the above-mentioned first UHF discharge spectrum.

[0010] Optionally, the second internal metal residue identification result is determined based on the residue size characteristics corresponding to the first UHF discharge spectrum, including: judging whether the similarity corresponding to the first UHF discharge spectrum is greater than a preset similarity threshold; if the similarity corresponding to the first UHF discharge spectrum is greater than the preset similarity threshold, then determining the second internal metal residue identification result based on the residue size characteristics corresponding to the first UHF discharge spectrum.

[0011] Optionally, the target internal metal relic identification result corresponding to the gas-insulated metal-enclosed switchgear is obtained based on the first internal metal relic identification result and the second internal metal relic identification result, including: judging whether the first internal metal relic identification result and the second internal metal relic identification result are consistent; if the first internal metal relic identification result is consistent with the second internal metal relic identification result, then using the first internal metal relic identification result as the target internal metal relic identification result.

[0012] According to another aspect of an embodiment of the present invention, a detection device for a gas-insulated metal-enclosed switchgear is further provided, comprising: a first acquisition module, used to acquire a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; a first determination module, used to determine a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when determining that the local discharge amplitude is within a preset amplitude range; and a second determination module, used to Based on the above-mentioned target ultra-high frequency discharge spectrum and a preset spectrum database, a second internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear is determined, wherein the above-mentioned spectrum database pre-stores the correspondence between multiple ultra-high frequency discharge spectra and residue size characteristics; a second acquisition module is used to obtain the target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear based on the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result, wherein the above-mentioned target internal metal residue identification result includes the target size characteristics of the internal metal residues of the above-mentioned gas-insulated metal-enclosed switchgear.

[0013] According to another aspect of an embodiment of the present invention, a non-volatile storage medium is provided, wherein the non-volatile storage medium stores a plurality of instructions, wherein the instructions are suitable for being loaded by a processor and executing any one of the above-mentioned methods for detecting gas-insulated metal-enclosed switchgear.

[0014] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement any one of the above-mentioned detection methods for gas-insulated metal-enclosed switchgear.

[0015] In an embodiment of the present invention, a target ultra-high frequency discharge spectrum of a gas-insulated metal-enclosed switchgear is obtained, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; when it is determined that the local discharge amplitude is within a preset amplitude range, based on the distribution characteristics, a first internal metal residue recognition result of the gas-insulated metal-enclosed switchgear is determined; based on the target ultra-high frequency discharge spectrum and a preset spectrum database, a second internal metal residue recognition result of the gas-insulated metal-enclosed switchgear is determined, wherein the spectrum database pre-stores a plurality of correspondences between ultra-high frequency discharge spectra and residue size characteristics; based on the first internal metal residue The identification result and the above-mentioned second internal metal residue identification result are used to obtain the target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear, wherein the above-mentioned target internal metal residue identification result includes the target size characteristics of the internal metal residues of the above-mentioned gas-insulated metal-enclosed switchgear, thereby achieving the purpose of accurately identifying the internal metal residues of the gas-insulated metal-enclosed switchgear, thereby achieving the technical effect of improving the internal metal residue identification efficiency and identification accuracy of the gas-insulated metal-enclosed switchgear, and ensuring the safe application of the gas-insulated metal-enclosed switchgear, thereby solving the technical problem that the detection method of the gas-insulated metal-enclosed switchgear in the related technology cannot accurately identify the internal metal residues, thereby resulting in low application safety of the gas-insulated metal-enclosed switchgear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a flow chart of a method for detecting a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of an optional target ultra-high frequency discharge spectrum according to an embodiment of the present invention;

[0019] Figure 3is another optional target ultra-high frequency discharge spectrum schematic diagram according to an embodiment of the present invention;

[0020] Figure 4 is another optional target ultra-high frequency discharge spectrum schematic diagram according to an embodiment of the present invention;

[0021] Figure 5 is a flow chart of an optional detection method for a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a detection device for a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] According to an embodiment of the present invention, a method embodiment for detecting a gas-insulated metal-enclosed switchgear is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0026] Figure 1 : is a flow chart of a detection method for a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention. Figure 1 As shown, the method comprises the following steps:

[0027] Step S102, obtaining a target ultra-high frequency discharge spectrum of a gas-insulated metal-enclosed switchgear.

[0028] Optionally, the target UHF discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear (GASinsulated SWITCHGEAR). The target UHF discharge spectrum is a PRPD spectrum. Figures 2 to 4 The horizontal axis of the partial discharge phase is shown, and the vertical axis is the partial discharge amplitude. The target ultra-high frequency discharge spectrum corresponding to the gas-insulated metal-enclosed switchgear can be detected by, but is not limited to, an ultra-high frequency partial discharge detector.

[0029] Step S104, when it is determined that the above-mentioned partial discharge amplitude is within a preset amplitude range, based on the above-mentioned distribution characteristics, determine a first internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear.

[0030] Optionally, before identifying metal residues inside the gas-insulated metal-enclosed switchgear, it is necessary to perform a range judgment on the above-mentioned local discharge amplitude. If the above-mentioned local discharge amplitude is within the above-mentioned preset amplitude range (such as between 20mV-100mV), it indicates that there may be metal residues inside the above-mentioned gas-insulated metal-enclosed switchgear, and further identification judgment is required; if the above-mentioned local discharge amplitude is not within the above-mentioned preset amplitude range, it can be directly determined that there are no metal residues inside the above-mentioned gas-insulated metal-enclosed switchgear, and no further judgment is required.

[0031] In an optional embodiment, when it is determined that the partial discharge amplitude is within a preset amplitude range, determining the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics includes:

[0032] Step S112, when it is determined that the above-mentioned local discharge amplitude is within the above-mentioned preset amplitude range, based on the above-mentioned distribution characteristics, determine the discharge characteristics inside the above-mentioned gas-insulated metal-enclosed switchgear, wherein the above-mentioned discharge characteristics are any one of the following: surface discharge characteristics, corona discharge characteristics and suspended discharge characteristics.

[0033] Optionally, when it is determined that the distribution characteristic indicates that the local discharge phases are concentrated in a first preset phase interval and a second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is greater than the local discharge amplitude corresponding to the second preset phase interval, the discharge characteristic is determined to be the surface discharge characteristic. Figure 2is a schematic diagram of an optional target ultra-high frequency discharge spectrum according to an embodiment of the present invention, Figure 2 The 90° interval corresponds to the first preset phase interval, and the 270° interval corresponds to the second preset phase interval. When the local discharge phases of the gas-insulated metal-enclosed switchgear are concentrated near the 90° interval and the 270° interval, and the local discharge amplitude corresponding to the 90° interval is greater than the local discharge amplitude corresponding to the 270° interval, the above-mentioned discharge feature is determined to be the above-mentioned surface discharge feature.

[0034] Optionally, when it is determined that the distribution characteristic indicates that the local discharge phases are concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is smaller than the local discharge amplitude corresponding to the second preset phase interval, the discharge characteristic is determined to be the corona discharge characteristic. Figure 3 is another optional target ultra-high frequency discharge spectrum schematic diagram according to an embodiment of the present invention, Figure 3 The 90° interval corresponds to the first preset phase interval, and the 270° interval corresponds to the second preset phase interval. When the local discharge phases of the gas-insulated metal-enclosed switchgear are concentrated near the 90° interval and the 270° interval, and the local discharge amplitude corresponding to the 90° interval is smaller than the local discharge amplitude corresponding to the 270° interval, the above-mentioned discharge characteristics are determined to be the above-mentioned corona discharge characteristics.

[0035] Optionally, when it is determined that the distribution characteristic indicates that the local discharge phases are concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is equal to the local discharge amplitude corresponding to the second preset phase interval, the discharge characteristic is determined to be the suspended discharge characteristic. Figure 4 is another optional target ultra-high frequency discharge spectrum schematic diagram according to an embodiment of the present invention, Figure 4 The 90° interval corresponds to the first preset phase interval, and the 270° interval corresponds to the second preset phase interval. When the local discharge phases of the gas-insulated metal-enclosed switchgear are concentrated near the 90° interval and the 270° interval, and the local discharge amplitude corresponding to the 90° interval is equal to the local discharge amplitude corresponding to the 270° interval, the above-mentioned discharge feature is determined to be the above-mentioned suspended discharge feature.

[0036] Step S114, based on the above-mentioned discharge characteristics, determine the above-mentioned first internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear, wherein the above-mentioned first internal metal residue identification result includes the first size feature of the metal residue inside the above-mentioned gas-insulated metal-enclosed switchgear.

[0037] Optionally, when the above discharge feature is determined to be the above creeping discharge feature, the above first internal metal relic identification result is determined as: the above relic size feature is that the relic size is greater than the first size threshold, and the curvature radius is greater than the first curvature radius threshold, and there is a first metal relic inside the above gas-insulated metal-enclosed switchgear. For example, the above first metal relic can be, but is not limited to, a relic of a large-sized metal material represented by a wrench, and the partial discharge phase is concentrated near the 90° and 270° intervals, and the partial discharge amplitude in the 270° interval is greater than the partial discharge amplitude in the 90° interval, showing a creeping discharge feature.

[0038] Optionally, in the case where the discharge feature is determined to be the corona discharge feature, the first internal metal relic identification result is determined as: the second metal relic with the relic size feature being smaller than the second size threshold and the curvature radius being smaller than the second curvature radius threshold exists inside the gas-insulated metal-enclosed switchgear. For example, the second metal relic may be, but is not limited to, a relic of a small-sized, small-radius-of-curvature metal material represented by a through screw, the local discharge phase is concentrated near the 270° interval, the local discharge amplitude in the 270° interval is smaller than the local discharge amplitude in the 90° interval, and it presents a corona discharge feature.

[0039] Optionally, in the case where the discharge feature is determined to be the suspended discharge feature, the identification result of the first internal metal relic is determined as follows: the third metal relic with the relic size feature being smaller than the first size threshold and the curvature radius being larger than the first curvature radius threshold exists inside the gas-insulated metal-enclosed switchgear. For example, the third metal relic may be, but is not limited to, a relic of a small-sized, large-radius-of-curvature metal material represented by a nut, the partial discharge phase is concentrated near the 90° and 270° intervals, the partial discharge amplitude in the 270° interval is equal to the partial discharge amplitude in the 90° interval, and presents a suspended discharge feature.

[0040] Step S106, based on the target UHF discharge spectrum and a preset spectrum database, determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear.

[0041] Optionally, the above-mentioned spectrum database pre-stores the correspondence between multiple ultra-high frequency discharge spectra and relics size characteristics. The above-mentioned spectrum database is pre-acquired through experiments. For example, through the GIS fault simulation platform, relics of various metal materials of different sizes are placed in the gas-insulated metal-enclosed switchgear for simulation, and target ultra-high frequency discharge spectra corresponding to the relics of various metal materials of different sizes are obtained (that is, multiple target ultra-high frequency discharge spectra are obtained), and the multiple relics size characteristics corresponding to the relics of various metal materials of different sizes and the multiple target ultra-high frequency discharge spectra are stored in the spectrum database.

[0042] In an optional embodiment, the above-mentioned determination of the second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the above-mentioned target UHF discharge spectrum and the preset spectrum database includes: respectively determining the similarity between the above-mentioned multiple UHF discharge spectra in the spectrum database and the above-mentioned target UHF discharge spectrum; determining the first UHF discharge spectrum with the greatest similarity from the above-mentioned multiple UHF discharge spectra; and determining the above-mentioned second internal metal residue identification result according to the residue size feature corresponding to the above-mentioned first UHF discharge spectrum. In the above manner, each UHF discharge spectrum included in the spectrum database is compared and identified with the target UHF discharge spectrum corresponding to the above-mentioned gas-insulated metal-enclosed switchgear, and the similarity between each UHF discharge spectrum and the above-mentioned target UHF discharge spectrum is calculated, and the UHF discharge spectrum with the greatest similarity to the above-mentioned target UHF discharge spectrum is selected from the multiple UHF discharge spectra according to the similarity, and the above-mentioned second internal metal residue identification result is determined according to the residue size feature corresponding to the UHF discharge spectrum with the greatest similarity to the above-mentioned target UHF discharge spectrum. The above method mainly determines the internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear by comparing with the atlas database.

[0043] In an optional embodiment, the second internal metal residue identification result is determined based on the residue size characteristics corresponding to the first UHF discharge spectrum, including: judging whether the similarity corresponding to the first UHF discharge spectrum is greater than a preset similarity threshold; if the similarity corresponding to the first UHF discharge spectrum is greater than the preset similarity threshold, then determining the second internal metal residue identification result based on the residue size characteristics corresponding to the first UHF discharge spectrum.

[0044] It should be noted that, in some cases, the similarities between multiple UHF discharge spectra in the spectrum database and the target UHF discharge spectrum may be very small, which may cause the second internal metal residue identification result finally obtained to be inaccurate. Based on this, after obtaining the first UHF discharge spectrum with the greatest similarity, it is further determined whether the similarity corresponding to the first UHF discharge spectrum meets the similarity requirement. If the similarity corresponding to the first UHF discharge spectrum is greater than the preset similarity threshold, it indicates that the similarity between the first UHF discharge spectrum and the target UHF discharge spectrum is large enough. At this time, the second internal metal residue identification result can be determined based on the residue size characteristics corresponding to the first UHF discharge spectrum. Otherwise, the residue size characteristics corresponding to the first UHF discharge spectrum cannot be used as the basis for determining the second internal metal residue identification result.

[0045] Step S108, based on the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result, obtain the target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear, wherein the above-mentioned target internal metal residue identification result includes the target size characteristics of the internal metal residues of the above-mentioned gas-insulated metal-enclosed switchgear.

[0046] In an optional embodiment, the target internal metal relic identification result corresponding to the gas-insulated metal-enclosed switchgear is obtained based on the first internal metal relic identification result and the second internal metal relic identification result, including: judging whether the first internal metal relic identification result and the second internal metal relic identification result are consistent; if the first internal metal relic identification result is consistent with the second internal metal relic identification result, then using the first internal metal relic identification result as the target internal metal relic identification result.

[0047] Through the above steps S102 to S108, the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear are used, and the method of comparing the atlas database is used to obtain the internal metal residue identification results respectively, and the internal metal residue identification results obtained by the above two methods are comprehensively compared, and finally the internal metal residue of the gas-insulated metal-enclosed switchgear is determined. The purpose of accurately identifying the internal metal residue of the gas-insulated metal-enclosed switchgear can be achieved, thereby achieving the technical effect of improving the internal metal residue identification efficiency and identification accuracy of the gas-insulated metal-enclosed switchgear, and ensuring the application safety of the gas-insulated metal-enclosed switchgear, thereby solving the technical problem that the detection method of the gas-insulated metal-enclosed switchgear in the related art cannot accurately identify the internal metal residue, thereby resulting in low application safety of the gas-insulated metal-enclosed switchgear.

[0048] Based on the above embodiments and optional embodiments, the present invention proposes an optional implementation mode: Figure 5 is a flow chart of an optional detection method for a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention, such as Figure 5 As shown, the method includes:

[0049] Step S1, after determining the input voltage level corresponding to the gas-insulated metal-enclosed switchgear and the radius of the GIS equipment, a target ultra-high frequency discharge spectrum corresponding to the GIS equipment is detected by an ultra-high frequency partial discharge detector.

[0050] Step S2, judging whether the partial discharge amplitude corresponding to the gas-insulated metal-enclosed switchgear is between 20mV-100mV, if the partial discharge amplitude is not between 20mV-100mV, determining that there is no metal residue in the gas-insulated metal-enclosed switchgear.

[0051] Step S3, if the partial discharge amplitude is between 20mV and 100mV, determining the first internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear according to the distribution characteristics of the target ultra-high frequency discharge spectrum, specifically includes the following sub-steps:

[0052] Step S31, judging whether the target UHF discharge spectrum meets the predetermined distribution characteristics, wherein the predetermined distribution characteristics at least include: the local discharge phase is concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is greater than the local discharge amplitude corresponding to the second preset phase interval; the local discharge phase is concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is less than the local discharge amplitude corresponding to the second preset phase interval; the distribution characteristics indicate that the local discharge phase is concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is equal to the local discharge amplitude corresponding to the second preset phase interval;

[0053] Step S32, if the target UHF discharge spectrum satisfies any one of a plurality of predetermined distribution features, then determining a discharge feature corresponding to the predetermined distribution feature, wherein the discharge feature at least includes: a surface discharge feature, a corona discharge feature, and a suspension discharge feature;

[0054] Step S33, based on the above discharge characteristics, determining a first internal metal residue identification result corresponding to the above gas-insulated metal-enclosed switchgear;

[0055] Step S34: if the target UHF discharge spectrum does not satisfy a plurality of predetermined distribution characteristics, it is determined that no metal remains exist in the gas-insulated metal-enclosed switchgear.

[0056] Step S4, if the partial discharge amplitude is between 20mV and 100mV, the second internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear is obtained by comparing and identifying the atlas database, which specifically includes the following sub-steps:

[0057] Step S41, comparing and identifying each UHF discharge spectrum included in the spectrum database with the target UHF discharge spectrum corresponding to the gas-insulated metal-enclosed switchgear, calculating the similarity between each UHF discharge spectrum and the target UHF discharge spectrum, and selecting the first UHF discharge spectrum with the greatest similarity to the target UHF discharge spectrum from among the multiple UHF discharge spectrums according to the similarity;

[0058] Step S42, determining whether the similarity between the first UHF discharge spectrum and the target UHF discharge spectrum is greater than a preset similarity threshold;

[0059] Step S43, if the similarity between the first UHF discharge spectrum and the target UHF discharge spectrum is greater than the preset similarity threshold, determining the second internal metal residue identification result according to the residue size feature corresponding to the first UHF discharge spectrum;

[0060] Step S44: if the similarity between the first UHF discharge spectrum and the target UHF discharge spectrum is less than or equal to the preset similarity threshold, it is determined that there is no metal residue in the gas-insulated metal-enclosed switchgear.

[0061] Step S5, after obtaining the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result, determine whether the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result are the same. If they are the same, the same above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result will be used as the target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear.

[0062] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0063] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0064] In this embodiment, a detection device for a gas-insulated metal-enclosed switchgear is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the terms "module" and "device" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0065] According to an embodiment of the present invention, there is also provided an embodiment of a device for implementing the above-mentioned method for detecting a gas-insulated metal-enclosed switchgear. Figure 6 is a schematic structural diagram of a detection device for a gas-insulated metal-enclosed switchgear according to an embodiment of the present invention. Figure 6 As shown, the detection device of the gas-insulated metal-enclosed switchgear comprises: a first acquisition module 600, a first determination module 602, a second determination module 604, and a second acquisition module 606, wherein:

[0066] The first acquisition module 600 is used to acquire a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the partial discharge amplitude and the partial discharge phase corresponding to the partial discharge voltage inside the gas-insulated metal-enclosed switchgear;

[0067] The first determination module 602 is connected to the first acquisition module 600, and is used to determine the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when it is determined that the partial discharge amplitude is within a preset amplitude range;

[0068] The second determination module 604 is connected to the first determination module 602, and is used to determine the second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the spectrum database pre-stores a correspondence between a plurality of ultra-high frequency discharge spectra and residue size features;

[0069] The above-mentioned second acquisition module 606 is connected to the above-mentioned second determination module 604, and is used to obtain the target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear based on the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result, wherein the above-mentioned target internal metal residue identification result includes the target size characteristics of the internal metal residues of the above-mentioned gas-insulated metal-enclosed switchgear.

[0070] In an embodiment of the present invention, the first acquisition module 600 is provided to acquire a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; the first determination module 602 is connected to the first acquisition module 600, and is used to determine the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when it is determined that the local discharge amplitude is within a preset amplitude range; the second determination module 604 is connected to the first determination module 602, and is used to determine the second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the spectrum database pre-stores a plurality of ultra-high frequency discharge spectra and residue size The correspondence between the features; the second acquisition module 606 is connected to the second determination module 604, and is used to obtain the target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear based on the first internal metal residue identification result and the second internal metal residue identification result, wherein the target internal metal residue identification result includes the target size feature of the internal metal residue of the gas-insulated metal-enclosed switchgear, thereby achieving the purpose of accurately identifying the internal metal residue of the gas-insulated metal-enclosed switchgear, thereby achieving the technical effect of improving the internal metal residue identification efficiency and identification accuracy of the gas-insulated metal-enclosed switchgear, and ensuring the safe application of the gas-insulated metal-enclosed switchgear, thereby solving the technical problem that the detection method of the gas-insulated metal-enclosed switchgear in the related art cannot accurately identify the internal metal residues, thereby resulting in low application safety of the gas-insulated metal-enclosed switchgear.

[0071] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0072] It should be noted that the first acquisition module 600, the first determination module 602, the second determination module 604, and the second acquisition module 606 correspond to steps S102 to S108 in the embodiment, and the examples and application scenarios implemented by the modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments. It should be noted that the modules as part of the device can be run in a computer terminal.

[0073] It should be noted that the optional or preferred implementation of this embodiment can refer to the relevant description in the embodiment, which will not be repeated here.

[0074] The above-mentioned detection device for gas-insulated metal-enclosed switchgear may also include a processor and a memory. The above-mentioned first acquisition module 600, first determination module 602, second determination module 604, second acquisition module 606, etc. are all stored in the memory as program modules, and the processor executes the above-mentioned program modules stored in the memory to realize corresponding functions.

[0075] The processor includes a kernel, which retrieves the corresponding program module from the memory. The kernel may be one or more. The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. The memory includes at least one memory chip.

[0076] According to an embodiment of the present application, an embodiment of a non-volatile storage medium is also provided. Optionally, in this embodiment, the non-volatile storage medium includes a stored program, wherein when the program is executed, the device where the non-volatile storage medium is located is controlled to execute any one of the above-mentioned gas-insulated metal-enclosed switchgear detection methods.

[0077] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group, and the non-volatile storage medium includes a stored program.

[0078] Optionally, when the program is running, the device where the non-volatile storage medium is located is controlled to perform the following functions: obtaining a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; when it is determined that the local discharge amplitude is within a preset amplitude range, based on the distribution characteristics, determining a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear; based on the target ultra-high frequency discharge spectrum and a preset spectrum database, determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear, wherein the spectrum database pre-stores a correspondence between multiple ultra-high frequency discharge spectra and residue size characteristics; based on the first internal metal residue identification result and the second internal metal residue identification result, obtaining a target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear, wherein the target internal metal residue identification result includes a target size characteristic of the metal residue inside the gas-insulated metal-enclosed switchgear.

[0079] According to an embodiment of the present application, an embodiment of a processor is also provided. Optionally, in this embodiment, the processor is used to run a program, wherein when the program is run, any one of the above-mentioned gas-insulated metal-enclosed switchgear detection methods is executed.

[0080] According to an embodiment of the present application, an embodiment of a computer program product is also provided. When executed on a data processing device, the computer program product is suitable for executing a program that initializes any of the above-mentioned steps of the detection method for gas-insulated metal-enclosed switchgear.

[0081] Optionally, the above-mentioned computer program product, when executed on a data processing device, is suitable for executing a program initialized with the following method steps: obtaining a target ultra-high frequency discharge spectrum of the gas-insulated metal-enclosed switchgear, wherein the above-mentioned target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the above-mentioned gas-insulated metal-enclosed switchgear; in the case of determining that the above-mentioned local discharge amplitude is within a preset amplitude range, determining a first internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear based on the above-mentioned distribution characteristics; determining a second internal metal residue identification result of the above-mentioned gas-insulated metal-enclosed switchgear based on the above-mentioned target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the above-mentioned spectrum database pre-stores a correspondence between multiple ultra-high frequency discharge spectra and residue size characteristics; based on the above-mentioned first internal metal residue identification result and the above-mentioned second internal metal residue identification result, obtaining a target internal metal residue identification result corresponding to the above-mentioned gas-insulated metal-enclosed switchgear, wherein the above-mentioned target internal metal residue identification result includes the target size characteristics of the metal residue inside the above-mentioned gas-insulated metal-enclosed switchgear.

[0082] An embodiment of the present invention provides an electronic device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining a target ultra-high frequency discharge spectrum of a gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate the distribution characteristics between the local discharge amplitude and the local discharge phase corresponding to the local discharge voltage inside the gas-insulated metal-enclosed switchgear; determining a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when it is determined that the local discharge amplitude is within a preset amplitude range; determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the spectrum database pre-stores a correspondence between a plurality of ultra-high frequency discharge spectra and residue size characteristics; obtaining a target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear based on the first internal metal residue identification result and the second internal metal residue identification result, wherein the target internal metal residue identification result includes the target size characteristics of the metal residue inside the gas-insulated metal-enclosed switchgear.

[0083] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0084] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the above modules can be a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.

[0086] The modules described above as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0087] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0088] If the above-mentioned integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable non-volatile storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a non-volatile storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned non-volatile storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0089] The above is only 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 principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for detecting a gas-insulated metal-enclosed switchgear, characterized in that: include: Obtaining a target ultra-high frequency discharge spectrum of a gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate distribution characteristics between a partial discharge amplitude and a partial discharge phase corresponding to a partial discharge voltage inside the gas-insulated metal-enclosed switchgear; In the case where it is determined that the partial discharge amplitude is within a preset amplitude range, based on the distribution characteristics, determining a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear; Based on the target ultra-high frequency discharge spectrum and a preset spectrum database, determining a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear, wherein the spectrum database pre-stores a correspondence between a plurality of ultra-high frequency discharge spectra and residue size features; Based on the first internal metal residue identification result and the second internal metal residue identification result, a target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear is obtained, wherein the target internal metal residue identification result includes the target size characteristics of the internal metal residues of the gas-insulated metal-enclosed switchgear.

2. The method according to claim 1, characterized in that The determining of the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when the partial discharge amplitude is determined to be within the preset amplitude range includes: In the case where it is determined that the partial discharge amplitude is within the preset amplitude range, based on the distribution characteristics, a discharge characteristic inside the gas-insulated metal-enclosed switchgear is determined, wherein the discharge characteristic is any one of the following: a surface discharge characteristic, a corona discharge characteristic, and a suspended discharge characteristic; Based on the discharge characteristics, the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear is determined, wherein the first internal metal residue identification result includes a first size feature of the internal metal residue of the gas-insulated metal-enclosed switchgear.

3. The method according to claim 2, characterized in that The step of determining the discharge characteristics inside the gas-insulated metal-enclosed switchgear based on the distribution characteristics includes: In the case where it is determined that the distribution feature indicates that the local discharge phases are concentrated in a first preset phase interval and a second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is greater than the local discharge amplitude corresponding to the second preset phase interval, determining that the discharge feature is the creeping discharge feature; In the case where it is determined that the distribution feature indicates that the local discharge phases are concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is smaller than the local discharge amplitude corresponding to the second preset phase interval, determining that the discharge feature is the corona discharge feature; When it is determined that the distribution characteristic indicates that the local discharge phases are concentrated in the first preset phase interval and the second preset phase interval, and the local discharge amplitude corresponding to the first preset phase interval is equal to the local discharge amplitude corresponding to the second preset phase interval, the discharge characteristic is determined to be the suspended discharge characteristic.

4. The method according to claim 2, characterized in that: The determining the first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the discharge characteristics includes: In the case where the discharge feature is determined to be the creeping discharge feature, the first internal metal residue identification result is determined as: there is a first metal residue inside the gas-insulated metal-enclosed switchgear, the residue size feature being a residue size greater than a first size threshold and a curvature radius greater than a first curvature radius threshold; In the case where the discharge feature is determined to be the corona discharge feature, the first internal metal residue identification result is determined to be: there is a second metal residue inside the gas-insulated metal-enclosed switchgear, the residue size feature being that the residue size is smaller than a second size threshold and the curvature radius is smaller than a second curvature radius threshold; When it is determined that the discharge characteristic is the suspended discharge characteristic, the first internal metal residue identification result is determined as: there is a third metal residue inside the gas-insulated metal-enclosed switchgear, the residue size characteristic of which is that the residue size is smaller than the first size threshold and the curvature radius is larger than the first curvature radius threshold.

5. The method according to claim 1, characterized in that: The determining of the second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database includes: respectively determining similarities between the plurality of ultra-high frequency discharge spectra in the spectrum database and the target ultra-high frequency discharge spectrum; Determine the first ultra-high frequency discharge spectrum with the greatest similarity from the multiple ultra-high frequency discharge spectrums; The second internal metal residue identification result is determined according to the residue size characteristics corresponding to the first UHF discharge spectrum.

6. The method according to claim 5, characterized in that The determining the second internal metal residue identification result according to the residue size feature corresponding to the first UHF discharge spectrum includes: Determining whether the similarity corresponding to the first UHF discharge spectrum is greater than a preset similarity threshold; If the similarity corresponding to the first ultra-high frequency discharge spectrum is greater than the preset similarity threshold, the second internal metal residue identification result is determined according to the residue size characteristics corresponding to the first ultra-high frequency discharge spectrum.

7. The method according to any one of claims 1 to 6, characterized in that: The obtaining, based on the first internal metal residue identification result and the second internal metal residue identification result, a target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear comprises: Determining whether the first internal metal residue identification result and the second internal metal residue identification result are consistent; If the first internal metal residue identification result is consistent with the second internal metal residue identification result, the first internal metal residue identification result is used as the target internal metal residue identification result.

8. A detection device for a gas-insulated metal-enclosed switchgear, characterized in that: include: A first acquisition module is used to acquire a target ultra-high frequency discharge spectrum of a gas-insulated metal-enclosed switchgear, wherein the target ultra-high frequency discharge spectrum is used to indicate a distribution feature between a partial discharge amplitude and a partial discharge phase corresponding to a partial discharge voltage inside the gas-insulated metal-enclosed switchgear; A first determination module is used to determine a first internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the distribution characteristics when it is determined that the partial discharge amplitude is within a preset amplitude range; A second determination module is used to determine a second internal metal residue identification result of the gas-insulated metal-enclosed switchgear based on the target ultra-high frequency discharge spectrum and a preset spectrum database, wherein the spectrum database pre-stores a correspondence between a plurality of ultra-high frequency discharge spectra and residue size features; The second acquisition module is used to obtain the target internal metal residue identification result corresponding to the gas-insulated metal-enclosed switchgear based on the first internal metal residue identification result and the second internal metal residue identification result, wherein the target internal metal residue identification result includes the target size characteristics of the internal metal residues of the gas-insulated metal-enclosed switchgear.

9. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the method for detecting a gas-insulated metal-enclosed switchgear according to any one of claims 1 to 7.

10. An electronic device, characterized in that: It comprises one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the detection method for gas-insulated metal-enclosed switchgear as described in any one of claims 1 to 7.

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