Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains
During the operation of group trains, the trains frequently pass through the neutral zone. Then, the generated closing overvoltage will cause serious insulation damage to the traction power supply system and the trains′ high-voltage equipment box. In order to qualitatively analyze the closing overvo...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2025-01-01
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| Series: | 电力工程技术 |
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| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/240702617 |
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| author | XIANG Nianwen XU Chenglin SHAO Bingbing YUAN Qiankun YANG Jin WANG Zhoulong |
| author_facet | XIANG Nianwen XU Chenglin SHAO Bingbing YUAN Qiankun YANG Jin WANG Zhoulong |
| author_sort | XIANG Nianwen |
| collection | DOAJ |
| description | During the operation of group trains, the trains frequently pass through the neutral zone. Then, the generated closing overvoltage will cause serious insulation damage to the traction power supply system and the trains′ high-voltage equipment box. In order to qualitatively analyze the closing overvoltage characteristics of group trains, the equivalent simplified dynamic circuit of the traction power supply system of group trains is established according to the principle of circuit equivalent simplification. The expression of the train terminal voltage at the moment of closing is solved by reasonable assumptions, which reveals the formation reasons of the closing overvoltage in terms of the qualitative relationship. Based on the transient model of the group train traction power supply system, the influence of different train numbers, distribution locations and operating power on the closing overvoltage of group trains is investigated. Finally, a simulation model is built in PSCAD/EMTDC to verify the correctness of the theoretical analysis results. The results show that with the increase of the number of group trains, the centralization of the operation location, and the traction power, the peak closing overvoltage decreases. The results can also effectively guide the closing overvoltage mitigation of group train neutral zone, which reduces the closing overvoltage when the group trains pass through the neutral zone. |
| format | Article |
| id | doaj-art-902fbbcc2c6a4d8d90d6f89bd1a1a837 |
| institution | Kabale University |
| issn | 2096-3203 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj-art-902fbbcc2c6a4d8d90d6f89bd1a1a8372025-02-08T08:40:18ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032025-01-01441505910.12158/j.2096-3203.2025.01.006240702617Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trainsXIANG Nianwen0XU Chenglin1SHAO Bingbing2YUAN Qiankun3YANG Jin4WANG Zhoulong5School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, ChinaSchool of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, ChinaSchool of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, ChinaSchool of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, ChinaSchool of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, ChinaThe Center of National Railway Intelligent Transportation System Engineering and Technology(China Academy of Railway Sciences Corporation Limited), Beijing 100081, ChinaDuring the operation of group trains, the trains frequently pass through the neutral zone. Then, the generated closing overvoltage will cause serious insulation damage to the traction power supply system and the trains′ high-voltage equipment box. In order to qualitatively analyze the closing overvoltage characteristics of group trains, the equivalent simplified dynamic circuit of the traction power supply system of group trains is established according to the principle of circuit equivalent simplification. The expression of the train terminal voltage at the moment of closing is solved by reasonable assumptions, which reveals the formation reasons of the closing overvoltage in terms of the qualitative relationship. Based on the transient model of the group train traction power supply system, the influence of different train numbers, distribution locations and operating power on the closing overvoltage of group trains is investigated. Finally, a simulation model is built in PSCAD/EMTDC to verify the correctness of the theoretical analysis results. The results show that with the increase of the number of group trains, the centralization of the operation location, and the traction power, the peak closing overvoltage decreases. The results can also effectively guide the closing overvoltage mitigation of group train neutral zone, which reduces the closing overvoltage when the group trains pass through the neutral zone.https://www.epet-info.com/dlgcjsen/article/abstract/240702617group trainsneutral zoneclosing overvoltagetraction power supply systemcircuit equivalentovervoltage suppression |
| spellingShingle | XIANG Nianwen XU Chenglin SHAO Bingbing YUAN Qiankun YANG Jin WANG Zhoulong Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains 电力工程技术 group trains neutral zone closing overvoltage traction power supply system circuit equivalent overvoltage suppression |
| title | Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| title_full | Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| title_fullStr | Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| title_full_unstemmed | Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| title_short | Neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| title_sort | neutral zone closing overvoltage characteristics analysis in traction power supply system for group trains |
| topic | group trains neutral zone closing overvoltage traction power supply system circuit equivalent overvoltage suppression |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/240702617 |
| work_keys_str_mv | AT xiangnianwen neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains AT xuchenglin neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains AT shaobingbing neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains AT yuanqiankun neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains AT yangjin neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains AT wangzhoulong neutralzoneclosingovervoltagecharacteristicsanalysisintractionpowersupplysystemforgrouptrains |