Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method
In recent years, the cable fault detection method centered on the traveling wave method has been widely used. But the method has the problem of large deviation in the electrical distance accuracy of cable fault location due to the aging of cable segments. Therefore, an improving electrical distance...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/11104124/ |
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| _version_ | 1849243425714470912 |
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| author | Xiang Ren Zhiqiang Feng Kai Zhou Xueming Zhou Jianjun Yuan Yefei Xu Li Zhang |
| author_facet | Xiang Ren Zhiqiang Feng Kai Zhou Xueming Zhou Jianjun Yuan Yefei Xu Li Zhang |
| author_sort | Xiang Ren |
| collection | DOAJ |
| description | In recent years, the cable fault detection method centered on the traveling wave method has been widely used. But the method has the problem of large deviation in the electrical distance accuracy of cable fault location due to the aging of cable segments. Therefore, an improving electrical distance accuracy for cable fault location based on the Prony method is proposed, obtaining the wave velocity of different sections of the cable to improve the cable fault electrical distance positioning accuracy. By establishing a frequency-variable coupling model containing the transfer function of the cable with double joint structure, studying the mapping relationship between the cable attenuation constant and the electromagnetic wave velocity, and adopting the Prony estimation method combined with the singular value decomposition noise reduction algorithm to achieve the extraction of the attenuation constant and the decoupling of the segmented wave velocity, thus improving the electrical accuracy of fault location. Finally, the feasibility and effectiveness of the method are verified by simulation and field 680 m/10 kV power cable. Experimental results demonstrate that the method efficiently addresses the issue of significant deviations in electrical distance accuracy for cable fault location, which arise from uneven wave velocity distribution resulting from cable aging. |
| format | Article |
| id | doaj-art-c8e0d9d9f5f84c67ad85ac8f9b6b680a |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-c8e0d9d9f5f84c67ad85ac8f9b6b680a2025-08-20T03:59:30ZengIEEEIEEE Access2169-35362025-01-011313501913502610.1109/ACCESS.2025.359383311104124Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony MethodXiang Ren0https://orcid.org/0000-0002-3101-4531Zhiqiang Feng1Kai Zhou2https://orcid.org/0009-0003-8124-7960Xueming Zhou3Jianjun Yuan4Yefei Xu5https://orcid.org/0000-0002-7079-5588Li Zhang6https://orcid.org/0000-0001-9188-8110Electric Power Research Institute, State Grid Hubei Electric Power Company Ltd., Wuhan, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Company Ltd., Wuhan, ChinaSchool of Electrical Engineering, Sichuan University, Chengdu, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Company Ltd., Wuhan, ChinaChina Electric Power Research Institute Company Ltd., Wuhan, ChinaSchool of Electrical Engineering, Sichuan University, Chengdu, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Company Ltd., Wuhan, ChinaIn recent years, the cable fault detection method centered on the traveling wave method has been widely used. But the method has the problem of large deviation in the electrical distance accuracy of cable fault location due to the aging of cable segments. Therefore, an improving electrical distance accuracy for cable fault location based on the Prony method is proposed, obtaining the wave velocity of different sections of the cable to improve the cable fault electrical distance positioning accuracy. By establishing a frequency-variable coupling model containing the transfer function of the cable with double joint structure, studying the mapping relationship between the cable attenuation constant and the electromagnetic wave velocity, and adopting the Prony estimation method combined with the singular value decomposition noise reduction algorithm to achieve the extraction of the attenuation constant and the decoupling of the segmented wave velocity, thus improving the electrical accuracy of fault location. Finally, the feasibility and effectiveness of the method are verified by simulation and field 680 m/10 kV power cable. Experimental results demonstrate that the method efficiently addresses the issue of significant deviations in electrical distance accuracy for cable fault location, which arise from uneven wave velocity distribution resulting from cable aging.https://ieeexplore.ieee.org/document/11104124/Electrical distance accuracywave velocityattenuation constantPronySVD |
| spellingShingle | Xiang Ren Zhiqiang Feng Kai Zhou Xueming Zhou Jianjun Yuan Yefei Xu Li Zhang Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method IEEE Access Electrical distance accuracy wave velocity attenuation constant Prony SVD |
| title | Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method |
| title_full | Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method |
| title_fullStr | Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method |
| title_full_unstemmed | Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method |
| title_short | Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method |
| title_sort | improving electrical distance accuracy for cable fault location based on the prony method |
| topic | Electrical distance accuracy wave velocity attenuation constant Prony SVD |
| url | https://ieeexplore.ieee.org/document/11104124/ |
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