A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines
As the speedy expansion of power gird, the traveling wave fault locator in substation may not always connect to newly added transmission lines in time, which reduces the effectiveness of fault locator. In this paper, an adjacent fault-free line based fault location scheme for newly additional line i...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061523008190 |
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| author | Pulin Cao Xiaoxu Cheng Yiming Han Hongchun Shu Yutang Ma Lu Zhang Hongda Tang Bo Yang |
| author_facet | Pulin Cao Xiaoxu Cheng Yiming Han Hongchun Shu Yutang Ma Lu Zhang Hongda Tang Bo Yang |
| author_sort | Pulin Cao |
| collection | DOAJ |
| description | As the speedy expansion of power gird, the traveling wave fault locator in substation may not always connect to newly added transmission lines in time, which reduces the effectiveness of fault locator. In this paper, an adjacent fault-free line based fault location scheme for newly additional line is proposed. Since the traveling wave from adjacent fault-free line results in severe difficulty for identification of traveling waves from faulty line, the time–frequency matrix is performed to screen traveling waves. Firstly, in order to remove the influence of waves from remote terminals of adjacent fault-free line, the current refraction coefficient is theoretically analyzed. Due to the negative refraction coefficient, traveling waves from remote terminals of adjacent fault-free line can be reduced by the proposed composite traveling wave. Secondly, the time–frequency matrices of composite traveling wave and original traveling wave is obtained by S-transform. Then, these matrices are applied to form ratio matrix which thoroughly eliminated waves from remote terminals of fault-free lines. Moreover, the robustness of the proposed fault location scheme is thoroughly validated by the simulation of PSCAD/EMTDC. Finally, the proposed fault location method has the great accuracy in simulation tests and field data test. |
| format | Article |
| id | doaj-art-e9d189f8a5e74bb2bd7942bb87f049e0 |
| institution | OA Journals |
| issn | 0142-0615 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-e9d189f8a5e74bb2bd7942bb87f049e02025-08-20T02:33:01ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152024-02-0115610976210.1016/j.ijepes.2023.109762A fault location scheme based on composite traveling wave with transients in adjacent fault-free linesPulin Cao0Xiaoxu Cheng1Yiming Han2Hongchun Shu3Yutang Ma4Lu Zhang5Hongda Tang6Bo Yang7Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaElectric Power Research Institute, Yunnan Power Grid Corporation, Kunming 650000, China; Corresponding author.Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaAs the speedy expansion of power gird, the traveling wave fault locator in substation may not always connect to newly added transmission lines in time, which reduces the effectiveness of fault locator. In this paper, an adjacent fault-free line based fault location scheme for newly additional line is proposed. Since the traveling wave from adjacent fault-free line results in severe difficulty for identification of traveling waves from faulty line, the time–frequency matrix is performed to screen traveling waves. Firstly, in order to remove the influence of waves from remote terminals of adjacent fault-free line, the current refraction coefficient is theoretically analyzed. Due to the negative refraction coefficient, traveling waves from remote terminals of adjacent fault-free line can be reduced by the proposed composite traveling wave. Secondly, the time–frequency matrices of composite traveling wave and original traveling wave is obtained by S-transform. Then, these matrices are applied to form ratio matrix which thoroughly eliminated waves from remote terminals of fault-free lines. Moreover, the robustness of the proposed fault location scheme is thoroughly validated by the simulation of PSCAD/EMTDC. Finally, the proposed fault location method has the great accuracy in simulation tests and field data test.http://www.sciencedirect.com/science/article/pii/S0142061523008190Adjacent lineFault locationTraveling waveTime–frequency matrix |
| spellingShingle | Pulin Cao Xiaoxu Cheng Yiming Han Hongchun Shu Yutang Ma Lu Zhang Hongda Tang Bo Yang A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines International Journal of Electrical Power & Energy Systems Adjacent line Fault location Traveling wave Time–frequency matrix |
| title | A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines |
| title_full | A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines |
| title_fullStr | A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines |
| title_full_unstemmed | A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines |
| title_short | A fault location scheme based on composite traveling wave with transients in adjacent fault-free lines |
| title_sort | fault location scheme based on composite traveling wave with transients in adjacent fault free lines |
| topic | Adjacent line Fault location Traveling wave Time–frequency matrix |
| url | http://www.sciencedirect.com/science/article/pii/S0142061523008190 |
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