Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component
In order to solve the problem that the fault current can not correctly indicate the fault section due to the connection of photovoltaic power to the distribution network, the three-sequence component of the faulty distribution network with photovoltaic power generation is analyzed, and the negative...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2024-05-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202307027 |
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| author | Manlin HU Nan LI Yiming LI Zhiyong PI Yi ZHU Zhenxing LI |
| author_facet | Manlin HU Nan LI Yiming LI Zhiyong PI Yi ZHU Zhenxing LI |
| author_sort | Manlin HU |
| collection | DOAJ |
| description | In order to solve the problem that the fault current can not correctly indicate the fault section due to the connection of photovoltaic power to the distribution network, the three-sequence component of the faulty distribution network with photovoltaic power generation is analyzed, and the negative sequence component is selected as the fault characteristic quantity. A negative sequence reconstruction scheme is proposed for the asymmetric fault scenario. The MK trend detection is used to search the negative-sequence reconstruction sequence with the most obvious fault characteristics. The negative sequence reconstruction voltage amplitude is used to determine the suspicious fault section, and the fault section is finally determined by the phase direction of negative sequence reconstruction current. A distribution network model with photovoltaic power generation is established with the PSCAD/EMTDC simulation platform. The results show that the proposed method can accurately locate the fault section of the distribution network with photovoltaic power generation under different fault types and fault locations, and can provide a theoretical basis for the rapid fault location of the distribution network with photovoltaic power generation. |
| format | Article |
| id | doaj-art-1484858c18e341f5b65d86c0ba3d911e |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2024-05-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-1484858c18e341f5b65d86c0ba3d911e2025-08-20T02:47:33ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492024-05-0157518819910.11930/j.issn.1004-9649.202307027zgdl-57-02-humanlinFault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence ComponentManlin HU0Nan LI1Yiming LI2Zhiyong PI3Yi ZHU4Zhenxing LI5College of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, ChinaState Grid Hubei Jingmen Electric Power Supply Company, Jingmen 448001, ChinaCollege of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, ChinaState Grid Hubei Jingmen Electric Power Supply Company, Jingmen 448001, ChinaCollege of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, ChinaCollege of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, ChinaIn order to solve the problem that the fault current can not correctly indicate the fault section due to the connection of photovoltaic power to the distribution network, the three-sequence component of the faulty distribution network with photovoltaic power generation is analyzed, and the negative sequence component is selected as the fault characteristic quantity. A negative sequence reconstruction scheme is proposed for the asymmetric fault scenario. The MK trend detection is used to search the negative-sequence reconstruction sequence with the most obvious fault characteristics. The negative sequence reconstruction voltage amplitude is used to determine the suspicious fault section, and the fault section is finally determined by the phase direction of negative sequence reconstruction current. A distribution network model with photovoltaic power generation is established with the PSCAD/EMTDC simulation platform. The results show that the proposed method can accurately locate the fault section of the distribution network with photovoltaic power generation under different fault types and fault locations, and can provide a theoretical basis for the rapid fault location of the distribution network with photovoltaic power generation.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202307027symmetrical component methodfault locationnegative sequence reconstructionmk detectionphotovoltaic power generation |
| spellingShingle | Manlin HU Nan LI Yiming LI Zhiyong PI Yi ZHU Zhenxing LI Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component Zhongguo dianli symmetrical component method fault location negative sequence reconstruction mk detection photovoltaic power generation |
| title | Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component |
| title_full | Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component |
| title_fullStr | Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component |
| title_full_unstemmed | Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component |
| title_short | Fault Location Method for Distribution Network with Photovoltaic Power Based on Negative Sequence Component |
| title_sort | fault location method for distribution network with photovoltaic power based on negative sequence component |
| topic | symmetrical component method fault location negative sequence reconstruction mk detection photovoltaic power generation |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202307027 |
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