Partial discharge sound source positioning method and system based on acoustic signal

Abstract

The invention provides a partial discharge sound source positioning method and system based on acoustic signals, and belongs to the technical field of partial discharge detection.The method specifically comprises the steps that a monitoring site division module is responsible for dividing a power distribution area into different partial discharge monitoring sites, and an equipment division module is responsible for determining whether partial discharge monitoring equipment is installed in power equipment in the power distribution area or not; the power equipment is divided into installed equipment and uninstalled equipment, and the positioning strategy determination module is responsible for determining a positioning processing strategy of partial discharge signals of acoustic positioning equipment at a partial discharge monitoring site according to distribution data of the uninstalled equipment at the partial discharge monitoring site. And the detection processing accuracy of the partial discharge signal in the inspection process is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of partial discharge detection, and in particular relates to a method and system for locating a partial discharge sound source based on acoustic signals. Background Art

[0002] When performing partial discharge detection and processing on power equipment, existing technical solutions often utilize the partial discharge monitoring device of the power equipment to identify and process abnormal equipment. Specifically, similar technical solutions are given in invention patent applications CN202311092009.5 "A method for collecting ultra-high frequency partial discharge signals in switch cabinet rooms" and CN202111477321.7 "A method and system for detecting partial discharge signals based on ultrasonic sensor arrays".

[0003] However, due to the installation cost of partial discharge monitoring devices, not all power equipment is equipped with partial discharge monitoring devices. As a result, during the inspection process, inspection personnel are often unable to accurately identify and process abnormal partial discharge signals from power equipment that is not equipped with partial discharge monitoring devices, making it difficult to accurately identify and process abnormal power equipment.

[0004] In order to solve the above technical problems, the present application provides a method and system for locating localized sound sources based on acoustic signals. Summary of the Invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: In a first aspect, the present application provides a localized sound source localization system based on acoustic signals, specifically comprising: Monitoring location division module, equipment division module, positioning strategy determination module; The monitoring location division module is responsible for dividing the power distribution area into different partial discharge monitoring locations; The equipment classification module is responsible for classifying the power equipment in the power distribution area into installed equipment and uninstalled equipment based on whether the power equipment is installed with a partial discharge monitoring device. The positioning strategy determination module is responsible for determining a positioning processing strategy for the partial discharge signal at the partial discharge monitoring site using the acoustic positioning device based on the distribution data of the uninstalled equipment at the partial discharge monitoring site.

[0006] The beneficial effects of the present invention are: By using acoustic positioning equipment to locate and process partial discharge signals at partial discharge monitoring sites, the original technical problem of being unable to accurately locate partial discharge signals during inspections is avoided, and accurate positioning and processing of partial discharge signals during inspections is achieved, thereby improving the accuracy of fault diagnosis and processing of partial discharge signals of power equipment.

[0007] Based on the distribution data of the uninstalled equipment in the partial discharge monitoring site, the positioning and processing strategy of the partial discharge signal at the said partial discharge monitoring site using the acoustic positioning equipment is determined, thereby realizing the determination of the positioning and processing strategy of the partial discharge signal from the perspective of the number of uninstalled equipment. This not only avoids the technical problem of insufficient positioning measurement accuracy caused by the use of fixed sites due to the large number of uninstalled equipment, but also avoids the technical problem of poor positioning processing efficiency caused by the use of fixed positioning processing strategies.

[0008] A further technical solution is that the method for determining the partial discharge monitoring location is: Dividing the power distribution area into a plurality of partial discharge monitoring areas according to a preset area threshold; Different partial discharge monitoring areas are used as corresponding partial discharge monitoring locations.

[0009] A further technical solution is that the method for determining the positioning and processing strategy of the partial discharge signal at the partial discharge monitoring location is: determining the number of uninstalled devices in the partial discharge monitoring location based on the distribution data of uninstalled devices in the partial discharge monitoring location; Based on the number of the uninstalled devices, a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location is determined.

[0010] A further technical solution is to determine a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location based on the number of the installed devices, specifically including: When the number of uninstalled devices in the partial discharge monitoring location is greater than a preset device number threshold, positioning processing of the partial discharge signals of the uninstalled devices is performed using the distance between the partial discharge acoustic positioning device and different uninstalled devices within a preset distance range as a constraint condition; When the number of uninstalled devices in the partial discharge monitoring location is not greater than a preset device number threshold, a positioning and processing strategy for partial discharge signals of different uninstalled devices is determined based on historical partial discharge data of different uninstalled devices.

[0011] A further technical solution is to determine the strategies for locating and processing the partial discharge signals of different uninstalled devices based on the historical partial discharge data of different uninstalled devices, specifically including: When the historical number of partial discharges of the uninstalled equipment is not within a preset range of partial discharges, positioning processing of the partial discharge signals of the uninstalled equipment is performed using the distance between the partial discharge acoustic positioning device and different uninstalled equipment within the preset distance range as a constraint condition; When the historical partial discharge times of the non-installed equipment are not within a preset partial discharge times range, the fixed position of the partial discharge monitoring location is used to perform positioning processing on the partial discharge signal of the non-installed equipment at the partial discharge monitoring location.

[0012] A further technical solution is that the acoustic positioning device is responsible for acquiring the acoustic signal of the non-installed device, and using the acoustic spectrum similarity coefficient between the acoustic signal and a preset acoustic signal to determine whether partial discharge occurs in the non-installed device.

[0013] A further technical solution is that the spectrum similarity coefficient is determined according to a Euclidean distance function.

[0014] In a second aspect, the present application provides a method for localizing a localized sound source based on an acoustic signal, which is applied to the above-mentioned localized sound source based on an acoustic signal, and specifically includes: S1 divides the power equipment in the distribution area into installed and uninstalled equipment based on whether the equipment is installed with partial discharge monitoring equipment. When the partial discharge risk of the distribution area is determined to meet the requirements based on the historical partial discharge data of the uninstalled equipment, the process proceeds to the next step. S2: determining abnormal installation equipment under current operating data based on analysis results of historical partial discharge signals of the partial discharge monitoring device of the installation equipment; S3: obtaining the distribution data of the abnormally installed equipment in the power distribution area, and combining the historical partial discharge signals of the abnormally installed equipment under the current operating data, and determining that the signal interference risk of the abnormally installed equipment meets the requirements, proceeding to the next step; S4 determines positioning and processing strategies for partial discharge signals at different partial discharge monitoring locations based on distribution data of uninstalled equipment at the partial discharge monitoring locations.

[0015] A further technical solution is that the historical partial discharge data of the non-installed devices includes the number of the non-installed devices and the historical partial discharge times of different non-installed devices.

[0016] A further technical solution is to determine whether the partial discharge risk in the power distribution area meets the requirements, specifically including: Determine the historical partial discharge times of different uninstalled equipment using historical partial discharge data of different uninstalled equipment; The uninstalled equipment with a historical partial discharge count greater than a preset historical partial discharge count threshold is considered as a risky installation equipment; Based on the number of risky installed devices, it is determined whether the partial discharge risk of the power distribution area meets the requirements.

[0017] A further technical solution is that, when the number of risky installed devices is greater than a preset risky device number threshold, it is determined that the partial discharge risk of the power distribution area does not meet the requirements.

[0018] A further technical solution is that, when the partial discharge risk in the power distribution area does not meet the requirements, the distance between the partial discharge acoustic locating device and different uninstalled equipment is constrained to be within a preset distance range, and the partial discharge signals of different uninstalled equipment are located and processed.

[0019] Other features and advantages will be described in the following description, and in part will become apparent from the description, or understood by practicing the invention. The purpose and other advantages of the invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.

[0022] Figure 1 It is a framework diagram of a partial discharge sound source localization system based on acoustic signals; Figure 2 It is a flow chart of a method for determining a positioning and processing strategy for a partial discharge signal at a partial discharge monitoring site; Figure 3 It is a flow chart of a method for locating a local discharge sound source based on acoustic signals; Figure 4 It is a flow chart to determine whether the partial discharge risk in the distribution area meets the requirements. DETAILED DESCRIPTION

[0023] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0024] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0025] Example 1 To solve the above problems, according to one aspect of the present invention, Figure 1As shown, a local discharge sound source localization system based on acoustic signals is provided, which specifically includes: Monitoring location division module, equipment division module, positioning strategy determination module; The monitoring location division module is responsible for dividing the power distribution area into different partial discharge monitoring locations; The equipment classification module is responsible for classifying the power equipment in the power distribution area into installed equipment and uninstalled equipment based on whether the power equipment is installed with a partial discharge monitoring device. The positioning strategy determination module is responsible for determining a positioning processing strategy for the partial discharge signal at the partial discharge monitoring site using the acoustic positioning device based on the distribution data of the uninstalled equipment at the partial discharge monitoring site.

[0026] Furthermore, the method for determining the partial discharge monitoring location is: Dividing the power distribution area into a plurality of partial discharge monitoring areas according to a preset area threshold; Different partial discharge monitoring areas are used as corresponding partial discharge monitoring locations.

[0027] Specifically, such as Figure 2 As shown, the method for determining the positioning and processing strategy of the partial discharge signal at the partial discharge monitoring location is: determining the number of uninstalled devices in the partial discharge monitoring location based on the distribution data of uninstalled devices in the partial discharge monitoring location; Based on the number of the uninstalled devices, a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location is determined.

[0028] Furthermore, based on the number of the uninstalled devices, a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location is determined, specifically including: When the number of uninstalled devices in the partial discharge monitoring location is greater than a preset device number threshold, positioning processing of the partial discharge signals of the uninstalled devices is performed using the distance between the partial discharge acoustic positioning device and different uninstalled devices within a preset distance range as a constraint condition; When the number of uninstalled devices in the partial discharge monitoring location is not greater than a preset device number threshold, a positioning and processing strategy for partial discharge signals of different uninstalled devices is determined based on historical partial discharge data of different uninstalled devices.

[0029] In a possible embodiment, when the number of uninstalled devices in the partial discharge monitoring location is greater than three, the partial discharge acoustic locating device is constrained to be within a preset distance range from the distance between the device and the different uninstalled devices, and the partial discharge signals of the uninstalled devices are located. When the number of uninstalled devices in the partial discharge monitoring location is no more than three, strategies for locating and processing partial discharge signals of different uninstalled devices are determined based on historical partial discharge data of different uninstalled devices.

[0030] It should be noted that the strategies for locating and processing the PD signals of different uninstalled devices are determined based on the historical PD data of different uninstalled devices, specifically including: When the number of historical partial discharges of the uninstalled equipment is within a preset range of partial discharges, positioning processing of the partial discharge signals of the uninstalled equipment is performed using the distance between the partial discharge acoustic locating device and different uninstalled equipment within the preset distance range as a constraint condition; When the historical partial discharge times of the non-installed equipment are not within a preset partial discharge times range, the fixed position of the partial discharge monitoring location is used to perform positioning processing on the partial discharge signal of the non-installed equipment at the partial discharge monitoring location.

[0031] In a possible embodiment, when the number of historical partial discharges of the uninstalled device is greater than three, positioning processing of the partial discharge signal of the uninstalled device is performed using the constraint condition that the distance between the partial discharge acoustic locating device and different uninstalled devices is within a preset distance range; When the number of historical partial discharges of the non-installed equipment is not greater than three, the fixed position of the partial discharge monitoring site is used to perform positioning processing on the partial discharge signal of the non-installed equipment at the partial discharge monitoring site.

[0032] It is understandable that the acoustic positioning device is responsible for acquiring the acoustic signal of the uninstalled device and determining whether partial discharge occurs in the uninstalled device by using the acoustic spectrum similarity coefficient between the acoustic signal and a preset acoustic signal.

[0033] Specifically, the spectrum similarity coefficient is determined according to a Euclidean distance function.

[0034] Example 2 Second, as Figure 3 As shown, the present application provides a method for locating a local discharge sound source based on an acoustic signal, which is applied to the above-mentioned local discharge sound source locating system based on an acoustic signal, and specifically includes: S1 divides the power equipment in the distribution area into installed and uninstalled equipment based on whether the equipment is installed with partial discharge monitoring equipment. When the partial discharge risk of the distribution area is determined to meet the requirements based on the historical partial discharge data of the uninstalled equipment, the process proceeds to the next step. S2: determining abnormal installation equipment under current operating data based on analysis results of historical partial discharge signals of the partial discharge monitoring device of the installation equipment; S3: obtaining the distribution data of the abnormally installed equipment in the power distribution area, and combining the historical partial discharge signals of the abnormally installed equipment under the current operating data, and determining that the signal interference risk of the abnormally installed equipment meets the requirements, proceeding to the next step; S4 determines a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location based on the distribution data of the uninstalled equipment at the partial discharge monitoring location.

[0035] Furthermore, the historical partial discharge data of the non-installed devices includes the number of the non-installed devices and the historical partial discharge times of different non-installed devices.

[0036] It should be noted that if Figure 4 As shown, determining that the partial discharge risk in the distribution area meets the requirements specifically includes: Determine the historical partial discharge times of different uninstalled equipment using historical partial discharge data of different uninstalled equipment; The uninstalled equipment with a historical partial discharge count greater than a preset historical partial discharge count threshold is considered as a risky installation equipment; It is understandable that the uninstalled equipment with a history of more than three partial discharges is considered as risky installed equipment; Based on the number of risky installed devices, it is determined whether the partial discharge risk of the power distribution area meets the requirements.

[0037] Furthermore, when the number of risky installed devices is greater than a preset risky device number threshold, in a possible embodiment, when the number is greater than 2, it is determined that the partial discharge risk of the power distribution area does not meet the requirements.

[0038] It can be understood that when the partial discharge risk in the distribution area does not meet the requirements, the distance between the partial discharge acoustic locating device and different uninstalled equipment is constrained to be within a preset distance range to perform positioning processing of the partial discharge signals of different uninstalled equipment.

[0039] Specifically, the current operating data includes the operating voltage and operating current of the power equipment.

[0040] Specifically, the method for determining an abnormal installation device under the current operation data of the installation device is: Determining the number of partial discharges monitored by the partial discharge monitoring device of the installation equipment under current operating data based on an analysis result of a historical partial discharge signal of the partial discharge monitoring device of the installation equipment; Based on the loudness of the partial discharge sound at different monitored partial discharge times, the number of monitored partial discharges with a loudness greater than a preset loudness threshold is determined, and the number is regarded as the number of abnormal loudness; It is determined whether the installation device is an abnormal installation device under current operation data according to the number of abnormal loudness times.

[0041] In a possible embodiment, if the loudness of the partial discharge sound at different monitored partial discharge times is greater than a preset loudness threshold, the partial discharge will affect the sound spectrum of other installed equipment, and therefore the installed equipment is determined to be an abnormal installed equipment under the current operating data.

[0042] It should be noted that the preset loudness threshold is determined based on the spacing between different installation devices, wherein the closer the distance to the installation device is to the other installation device closest to the installation device, the smaller the preset loudness threshold. In one possible embodiment, the average loudness of the partial discharge sounds of different installation devices under different partial discharge monitoring times is used as the preset loudness threshold.

[0043] In another possible embodiment, the method for determining an abnormal installation device under the current operation data of the installation device is: Determining the number of partial discharges monitored by the partial discharge monitoring device of the installation equipment under current operating data based on an analysis result of a historical partial discharge signal of the partial discharge monitoring device of the installation equipment; Determining the average loudness of the installation device under different partial discharge monitoring times based on the loudness of the partial discharge sound under different partial discharge monitoring times; It is determined whether the installation device is an abnormal installation device under the current operating data according to the monitored partial discharge times and the average loudness.

[0044] Furthermore, when the number of monitored partial discharges is greater than a preset partial discharge monitoring number threshold and the average loudness is greater than a preset loudness threshold, it is determined that the installation device is an abnormal installation device under the current operating data.

[0045] Optionally, the method for determining an abnormal installation device under the current operation data of the installation device is: Determining, based on analysis results of historical partial discharge signals of a partial discharge monitoring device of the installation device, the number of partial discharges detected by the partial discharge monitoring device of the installation device under current operating data; and determining that the installation device is not an abnormal installation device under the current operating data when the partial discharge monitoring device does not detect any partial discharge data of the installation device under the current operating data; When the partial discharge monitoring device detects partial discharge data under the current operating data of the installation equipment: Obtain the number of partial discharges monitored by the partial discharge monitoring device of the installation equipment under the current operating data. When the number of partial discharges monitored by the partial discharge monitoring device of the installation equipment under the current operating data does not meet the requirements, determine that the installation equipment is an abnormal installation equipment under the current operating data.

[0046] It should be noted that the distribution data of the abnormally installed devices in the power distribution area includes the number of the abnormal devices in the power distribution area and the spacing distances between them.

[0047] Specifically, determining whether the signal interference risk of the abnormally installed equipment meets the requirements includes: determining the number of abnormally installed devices in the power distribution area based on the distribution data in the power distribution area; Determine the loudness of the PD sound of different abnormally installed equipment based on the analysis results of historical PD signals under current operating data; According to the sum of the loudnesses of different abnormally installed devices, it is determined whether the signal interference risk of the abnormally installed devices meets the requirement.

[0048] Furthermore, when the sum of the loudness of different abnormally installed devices is greater than a preset interference loudness threshold, that is, greater than 70 dB, it is determined that the signal interference risk of the abnormally installed devices does not meet the requirement.

[0049] It should be noted that when the signal interference risk of the abnormally installed equipment does not meet the requirements, the distance between the partial discharge acoustic locating device and different uninstalled equipment is constrained within a preset distance range to perform positioning processing of the partial discharge signals of different uninstalled equipment, wherein the preset distance range is determined based on the effective detection distance of the acoustic signal of the partial discharge acoustic locating device, and is specifically determined based on the factory equipment parameters.

[0050] It can be understood that the distance interval data of the non-installed device and the abnormally installed device includes the distance between the non-installed device and different abnormally installed devices.

[0051] Optionally, the method for determining the positioning and processing strategy of the partial discharge signal at the partial discharge monitoring location is: Determining the number of uninstalled devices in the partial discharge monitoring location based on the distribution data of uninstalled devices in the partial discharge monitoring location, and when the number of uninstalled devices in the partial discharge monitoring location is greater than a preset device number threshold, performing positioning processing on the partial discharge signals of the uninstalled devices using a constraint condition that the distance between the partial discharge acoustic locating device and different uninstalled devices is within a preset distance range; When the number of uninstalled devices in the PD monitoring location is not greater than a preset device number threshold: Determining the distances between the different uninstalled devices and the partial discharge detection location based on the distribution data of different uninstalled devices; and when an average value of the distances between the different uninstalled devices and the partial discharge detection location does not meet the requirements, performing positioning processing on the partial discharge signals of the uninstalled devices using a constraint condition that the distances between the partial discharge acoustic locating device and the different uninstalled devices are within a preset distance range; When the average distance between different non-installed equipment and the PD detection location meets the requirements: Determining a superposition risk probability of partial discharge signals of the non-installed devices at the partial discharge monitoring location based on the spacing distances between different non-installed devices; when the superposition risk probability of partial discharge signals of the non-installed devices at the partial discharge monitoring location does not meet a requirement, performing positioning processing on the partial discharge signals of the non-installed devices using a constraint condition that the distances between the partial discharge acoustic locating device and the different non-installed devices are within a preset distance range; When the superposition risk probability of the PD signal without equipment installed in the PD monitoring location meets the requirements: When the historical number of partial discharges of the uninstalled equipment is not within a preset range of partial discharges, positioning processing of the partial discharge signals of the uninstalled equipment is performed using the distance between the partial discharge acoustic positioning device and different uninstalled equipment within the preset distance range as a constraint condition; When the historical partial discharge times of the non-installed equipment are not within a preset partial discharge times range, the fixed position of the partial discharge monitoring location is used to perform positioning processing on the partial discharge signal of the non-installed equipment at the partial discharge monitoring location.

[0052] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device, apparatus, and non-volatile computer storage medium embodiments are generally similar to the method embodiments, so their descriptions are relatively simplified. For relevant details, refer to the descriptions of the method embodiments.

[0053] The foregoing description of this specification describes specific embodiments. 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 the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0054] The foregoing description is merely one or more embodiments of this specification and is not intended to limit this specification. It will be apparent to those skilled in the art that various modifications and variations may be made to one or more embodiments of this specification. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of one or more embodiments of this specification are intended to be within the scope of the claims of this specification.

Claims

1. A localized sound source location system based on acoustic signals, characterized in that: Specifically include: Monitoring location division module, equipment division module, positioning strategy determination module; The monitoring location division module is responsible for dividing the power distribution area into different partial discharge monitoring locations; The equipment classification module is responsible for classifying the power equipment in the power distribution area into installed equipment and uninstalled equipment based on whether the power equipment is installed with a partial discharge monitoring device. The positioning strategy determination module is responsible for determining a positioning processing strategy for the partial discharge signal at the partial discharge monitoring site using the acoustic positioning device based on the distribution data of the uninstalled equipment at the partial discharge monitoring site.

2. The localization system for localizing a localized sound source based on acoustic signals according to claim 1, wherein: The method for determining the partial discharge monitoring location is: Dividing the power distribution area into a plurality of partial discharge monitoring areas according to a preset area threshold; Different partial discharge monitoring areas are used as corresponding partial discharge monitoring locations.

3. The localization system for localizing a localized sound source based on acoustic signals according to claim 1, wherein: The method for determining the positioning and processing strategy of the partial discharge signal at the partial discharge monitoring location is: determining the number of uninstalled devices in the partial discharge monitoring location based on the distribution data of uninstalled devices in the partial discharge monitoring location; Based on the number of the uninstalled devices, a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location is determined.

4. The localization system for localizing a localized sound source based on acoustic signals according to claim 3, wherein: Determining a positioning and processing strategy for the partial discharge signal at the partial discharge monitoring location based on the number of the installed devices, specifically comprising: When the number of uninstalled devices in the partial discharge monitoring location is greater than a preset device number threshold, positioning processing of the partial discharge signals of the uninstalled devices is performed using the distance between the partial discharge acoustic positioning device and different uninstalled devices within a preset distance range as a constraint condition; When the number of uninstalled devices in the partial discharge monitoring location is not greater than a preset device number threshold, a positioning and processing strategy for partial discharge signals of different uninstalled devices is determined based on historical partial discharge data of different uninstalled devices.

5. The localization system for localizing a localized sound source based on acoustic signals according to claim 1, wherein: The acoustic positioning device is responsible for acquiring the acoustic signal of the non-installed device and determining whether partial discharge occurs in the non-installed device by using the acoustic spectrum similarity coefficient between the acoustic signal and a preset acoustic signal.

6. A method for locating a localized sound source based on an acoustic signal, applied to a localized sound source based on an acoustic signal according to any one of claims 1 to 5, characterized in that: Specifically include: Based on whether the power equipment in the distribution area is equipped with partial discharge monitoring equipment, the power equipment is divided into installed equipment and uninstalled equipment. When it is determined based on historical partial discharge data of uninstalled equipment that the partial discharge risk of the distribution area meets the requirements, the next step is entered; Determining abnormal installation devices of the installation devices under current operating data based on analysis results of historical partial discharge signals of the partial discharge monitoring device of the installation devices; Obtain the distribution data of the abnormally installed equipment in the power distribution area, and combine the historical partial discharge signals of the abnormally installed equipment under the current operating data to determine that the signal interference risk of the abnormally installed equipment meets the requirements. Then, based on the distribution data of the non-installed equipment in the partial discharge monitoring location, determine the positioning and processing strategy of the partial discharge signals at different partial discharge monitoring locations.

7. The method for localizing a localized sound source based on an acoustic signal according to claim 6, wherein: The historical partial discharge data of the non-installed devices includes the number of the non-installed devices and the historical partial discharge times of different non-installed devices.

8. The method for localizing a localized sound source based on an acoustic signal according to claim 6, wherein: Determine that the partial discharge risk in the distribution area meets the requirements, including: Determine the historical partial discharge times of different uninstalled equipment using historical partial discharge data of different uninstalled equipment; The uninstalled equipment with a historical partial discharge count greater than a preset historical partial discharge count threshold is considered as a risky installation equipment; Based on the number of risky installed devices, it is determined whether the partial discharge risk of the power distribution area meets the requirements.

9. The method for localizing a localized sound source based on an acoustic signal according to claim 8, wherein: When the number of risky installed devices is greater than a preset risky device number threshold, it is determined that the partial discharge risk of the power distribution area does not meet the requirement.

10. The method for locating a localized sound source based on an acoustic signal according to claim 6, wherein: When the partial discharge risk in the power distribution area does not meet the requirements, the distance between the partial discharge acoustic locating device and different uninstalled equipment is constrained to be within a preset distance range to perform positioning processing on the partial discharge signals of different uninstalled equipment.

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