Research on overvoltage characteristics and influencing factors of converter station under grounding fault
In grounding fault of DC system, overvoltage will appear on equipment nodes in converter station. Due to different operation mode and equipment type, it is very different from overvoltage in AC system. Based on Shanghaimiao–Linyi ±800kV Ultra High Voltage Direct Current (UHVDC) transmission project...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722002311 |
| _version_ | 1811339819462164480 |
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| author | Zongyang Zhang Zhiyuan Wang Chao Kang Fang Yu Zixin Ma Jie Guo |
| author_facet | Zongyang Zhang Zhiyuan Wang Chao Kang Fang Yu Zixin Ma Jie Guo |
| author_sort | Zongyang Zhang |
| collection | DOAJ |
| description | In grounding fault of DC system, overvoltage will appear on equipment nodes in converter station. Due to different operation mode and equipment type, it is very different from overvoltage in AC system. Based on Shanghaimiao–Linyi ±800kV Ultra High Voltage Direct Current (UHVDC) transmission project, this paper studies the converter station overvoltage characteristics under the conditions of DC pole line grounding, DC bus grounding and converter transformer valve side grounding fault, then analyzes the influence of smoothing reactor, filter capacitor and grounding pole line on overvoltage. In grounding fault at DC pole line near the converter station, the maximum overvoltage occurs on the inductance of DC filter, which is 592.75kV; In grounding fault at the top of the high voltage converter valve, the maximum overvoltage occurs on the neutral bus, which is 272.17kV. Increasing the inductance or capacitance of the smoothing reactor and filter capacitor, shortening the length of grounding electrode wire can significantly reduce the amplitude and steepness of overvoltage. The calculation results provide a reference for the internal overvoltage suppression of DC converter station with layered access at the inverter side. |
| first_indexed | 2024-04-13T18:33:08Z |
| format | Article |
| id | doaj.art-4c6a2ea1aa2744e58dd101d94a77c272 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-13T18:33:08Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-4c6a2ea1aa2744e58dd101d94a77c2722022-12-22T02:35:00ZengElsevierEnergy Reports2352-48472022-07-018445454Research on overvoltage characteristics and influencing factors of converter station under grounding faultZongyang Zhang0Zhiyuan Wang1Chao Kang2Fang Yu3Zixin Ma4Jie Guo5Corresponding author.; College of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xian 710049, ChinaIn grounding fault of DC system, overvoltage will appear on equipment nodes in converter station. Due to different operation mode and equipment type, it is very different from overvoltage in AC system. Based on Shanghaimiao–Linyi ±800kV Ultra High Voltage Direct Current (UHVDC) transmission project, this paper studies the converter station overvoltage characteristics under the conditions of DC pole line grounding, DC bus grounding and converter transformer valve side grounding fault, then analyzes the influence of smoothing reactor, filter capacitor and grounding pole line on overvoltage. In grounding fault at DC pole line near the converter station, the maximum overvoltage occurs on the inductance of DC filter, which is 592.75kV; In grounding fault at the top of the high voltage converter valve, the maximum overvoltage occurs on the neutral bus, which is 272.17kV. Increasing the inductance or capacitance of the smoothing reactor and filter capacitor, shortening the length of grounding electrode wire can significantly reduce the amplitude and steepness of overvoltage. The calculation results provide a reference for the internal overvoltage suppression of DC converter station with layered access at the inverter side.http://www.sciencedirect.com/science/article/pii/S2352484722002311UHVDCGrounding faultConverter stationSmoothing reactorFilter capacitorGrounding electrode wire |
| spellingShingle | Zongyang Zhang Zhiyuan Wang Chao Kang Fang Yu Zixin Ma Jie Guo Research on overvoltage characteristics and influencing factors of converter station under grounding fault Energy Reports UHVDC Grounding fault Converter station Smoothing reactor Filter capacitor Grounding electrode wire |
| title | Research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| title_full | Research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| title_fullStr | Research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| title_full_unstemmed | Research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| title_short | Research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| title_sort | research on overvoltage characteristics and influencing factors of converter station under grounding fault |
| topic | UHVDC Grounding fault Converter station Smoothing reactor Filter capacitor Grounding electrode wire |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722002311 |
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