Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System
The DC (Direct Current) distribution system based on the voltage source converter (VSC-DC) has become a research hotspot due to its various advantages. There are many plug-in devices in the VSC-DC distribution system, which may be damaged by the fault current. Therefore, studying the fault current c...
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| Format: | Article |
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MDPI AG
2019-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/16/3159 |
| _version_ | 1817987210312417280 |
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| author | Yuqun Gao Yongxia Han Jinghan Zhang Fanglei Xiao Yuming Zhao Licheng Li |
| author_facet | Yuqun Gao Yongxia Han Jinghan Zhang Fanglei Xiao Yuming Zhao Licheng Li |
| author_sort | Yuqun Gao |
| collection | DOAJ |
| description | The DC (Direct Current) distribution system based on the voltage source converter (VSC-DC) has become a research hotspot due to its various advantages. There are many plug-in devices in the VSC-DC distribution system, which may be damaged by the fault current. Therefore, studying the fault current characteristics and current limiting method is one of the key methods to ensure the safe and stable operation of the VSC-DC distribution system. Based on theoretical analysis and simulation calculations, this paper studies the causes, influencing factors, and current limiting methods of the fault current when the pole-to-pole fault occurs at the line side of plug-in devices in a ±10 kV VSC-DC distribution system. Firstly, based on the system topology, the decisive fault condition of fault current and the design principle of current limiting reactor value are analyzed. Secondly, the theoretical calculation methods of fault current and current limiting reactor value which satisfies the breaking capacity of DC circuit breaker are proposed. Finally, the accuracy of theoretical calculation methods is verified by simulation in PSCAD/EMTDC (Power Systems Computer Aided Design/Electromagnetic Transients including DC). The research results could provide the theoretical calculation methods of the fault current and the current limiting reactor value of plug-in devices in the ±10 kV VSC-DC distribution system. |
| first_indexed | 2024-04-14T00:18:59Z |
| format | Article |
| id | doaj.art-846366e6f00344a69b50f5331254a518 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:18:59Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-846366e6f00344a69b50f5331254a5182022-12-22T02:23:01ZengMDPI AGEnergies1996-10732019-08-011216315910.3390/en12163159en12163159Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution SystemYuqun Gao0Yongxia Han1Jinghan Zhang2Fanglei Xiao3Yuming Zhao4Licheng Li5School of Electric Power, South China University of Technology, Guangzhou 510640, ChinaSchool of Electric Power, South China University of Technology, Guangzhou 510640, ChinaSchool of Electric Power, South China University of Technology, Guangzhou 510640, ChinaSchool of Electric Power, South China University of Technology, Guangzhou 510640, ChinaShenzhen Power Supply Corporation, China Southern Power Grid, Shenzhen 518048, ChinaSchool of Electric Power, South China University of Technology, Guangzhou 510640, ChinaThe DC (Direct Current) distribution system based on the voltage source converter (VSC-DC) has become a research hotspot due to its various advantages. There are many plug-in devices in the VSC-DC distribution system, which may be damaged by the fault current. Therefore, studying the fault current characteristics and current limiting method is one of the key methods to ensure the safe and stable operation of the VSC-DC distribution system. Based on theoretical analysis and simulation calculations, this paper studies the causes, influencing factors, and current limiting methods of the fault current when the pole-to-pole fault occurs at the line side of plug-in devices in a ±10 kV VSC-DC distribution system. Firstly, based on the system topology, the decisive fault condition of fault current and the design principle of current limiting reactor value are analyzed. Secondly, the theoretical calculation methods of fault current and current limiting reactor value which satisfies the breaking capacity of DC circuit breaker are proposed. Finally, the accuracy of theoretical calculation methods is verified by simulation in PSCAD/EMTDC (Power Systems Computer Aided Design/Electromagnetic Transients including DC). The research results could provide the theoretical calculation methods of the fault current and the current limiting reactor value of plug-in devices in the ±10 kV VSC-DC distribution system.https://www.mdpi.com/1996-1073/12/16/3159current limiting reactorDC circuit breakerfault current characteristicsplug-in devicesVSC-DC distribution system |
| spellingShingle | Yuqun Gao Yongxia Han Jinghan Zhang Fanglei Xiao Yuming Zhao Licheng Li Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System Energies current limiting reactor DC circuit breaker fault current characteristics plug-in devices VSC-DC distribution system |
| title | Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System |
| title_full | Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System |
| title_fullStr | Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System |
| title_full_unstemmed | Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System |
| title_short | Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System |
| title_sort | study on fault current characteristics and current limiting method of plug in devices in vsc dc distribution system |
| topic | current limiting reactor DC circuit breaker fault current characteristics plug-in devices VSC-DC distribution system |
| url | https://www.mdpi.com/1996-1073/12/16/3159 |
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