A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer
In this paper, a fault location method based on divide-and-conquer (DAC) is proposed to solve the inadequacy problem that arises when using the traditional fault section location method based on the optimization model of logic operation. The problem is that it is difficult to balance speed and accur...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/10/5974 |
| _version_ | 1827742234112425984 |
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| author | Qiao Zhao Zengping Wang Guomin Li Xuanjun Liu Yuxuan Wang |
| author_facet | Qiao Zhao Zengping Wang Guomin Li Xuanjun Liu Yuxuan Wang |
| author_sort | Qiao Zhao |
| collection | DOAJ |
| description | In this paper, a fault location method based on divide-and-conquer (DAC) is proposed to solve the inadequacy problem that arises when using the traditional fault section location method based on the optimization model of logic operation. The problem is that it is difficult to balance speed and accuracy after the scale of the distribution network is expanded. First, the causal link between fault information and the faulty device was described using the road vector, the equivalent transformation of the logical operations in the traditional model was implemented with the properties of the road vector, and the numerical computational model of the fault location was constructed. Based on this, the optimization-seeking variable “approximation gain” was introduced to prove that the proposed model conforms to the recursive structure of DAC, and the method of applying DAC to locate faults is proposed. The method applies the “Divide-Conquer-Combine” recursive mode to locate faults, and each level of recursion contains only linear-time “approximation gain” operations and constant-time decomposition and combination operations. The efficiency analysis and simulation results show that the proposed method has linear-time complexity and can accurately locate faults in milliseconds, providing a reference for solving the fault location problem in large distribution networks. |
| first_indexed | 2024-03-11T03:59:08Z |
| format | Article |
| id | doaj.art-e409b9d6953a4f2a903f641796baf569 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T03:59:08Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e409b9d6953a4f2a903f641796baf5692023-11-18T00:18:34ZengMDPI AGApplied Sciences2076-34172023-05-011310597410.3390/app13105974A Fault Section Location Method for Distribution Networks Based on Divide-and-ConquerQiao Zhao0Zengping Wang1Guomin Li2Xuanjun Liu3Yuxuan Wang4State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaState Grid Beijing Electric Power Company, Beijing 100031, ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaIn this paper, a fault location method based on divide-and-conquer (DAC) is proposed to solve the inadequacy problem that arises when using the traditional fault section location method based on the optimization model of logic operation. The problem is that it is difficult to balance speed and accuracy after the scale of the distribution network is expanded. First, the causal link between fault information and the faulty device was described using the road vector, the equivalent transformation of the logical operations in the traditional model was implemented with the properties of the road vector, and the numerical computational model of the fault location was constructed. Based on this, the optimization-seeking variable “approximation gain” was introduced to prove that the proposed model conforms to the recursive structure of DAC, and the method of applying DAC to locate faults is proposed. The method applies the “Divide-Conquer-Combine” recursive mode to locate faults, and each level of recursion contains only linear-time “approximation gain” operations and constant-time decomposition and combination operations. The efficiency analysis and simulation results show that the proposed method has linear-time complexity and can accurately locate faults in milliseconds, providing a reference for solving the fault location problem in large distribution networks.https://www.mdpi.com/2076-3417/13/10/5974distribution networkfault locationdivide-and-conquerroad vector |
| spellingShingle | Qiao Zhao Zengping Wang Guomin Li Xuanjun Liu Yuxuan Wang A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer Applied Sciences distribution network fault location divide-and-conquer road vector |
| title | A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer |
| title_full | A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer |
| title_fullStr | A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer |
| title_full_unstemmed | A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer |
| title_short | A Fault Section Location Method for Distribution Networks Based on Divide-and-Conquer |
| title_sort | fault section location method for distribution networks based on divide and conquer |
| topic | distribution network fault location divide-and-conquer road vector |
| url | https://www.mdpi.com/2076-3417/13/10/5974 |
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