Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission

The transient overvoltage caused by faults in ultra-high-voltage direct current (UHVDC) transmission lines and alternating current (AC) systems can adversely affect system safety and stability. This study theoretically analyzes the transient overvoltage generation mechanism caused by DC single-pole...

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Main Authors: Weiwei Yao, Jie Zhao, Jinqiu Dou, Youhan Deng, Yushu Li, Yilin Liang, Jing Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Energy Research
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Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2025.1461365/full
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author Weiwei Yao
Weiwei Yao
Jie Zhao
Jie Zhao
Jinqiu Dou
Jinqiu Dou
Youhan Deng
Youhan Deng
Yushu Li
Yushu Li
Yilin Liang
Yilin Liang
Jing Chen
Jing Chen
author_facet Weiwei Yao
Weiwei Yao
Jie Zhao
Jie Zhao
Jinqiu Dou
Jinqiu Dou
Youhan Deng
Youhan Deng
Yushu Li
Yushu Li
Yilin Liang
Yilin Liang
Jing Chen
Jing Chen
author_sort Weiwei Yao
collection DOAJ
description The transient overvoltage caused by faults in ultra-high-voltage direct current (UHVDC) transmission lines and alternating current (AC) systems can adversely affect system safety and stability. This study theoretically analyzes the transient overvoltage generation mechanism caused by DC single-pole ground faults and typical fault conditions in two different cases by combining the DC line and AC system of the transmitting side. Considering the different generation mechanisms of the two transient overvoltages, the main factors affecting transient overvoltages were determined to be the DC line ground fault location, DC filter main capacitance, AC system short-circuit ratio, and DC transmission power. Finally, through a simulation of UHVDC transmission engineering, the relationship between various influencing factors and overvoltage was obtained, which can provide guidance in transmission engineering UHVDC design.
format Article
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institution DOAJ
issn 2296-598X
language English
publishDate 2025-02-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Energy Research
spelling doaj-art-b0706c07d92d40b28387c8fab46c0ccf2025-08-20T02:43:16ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2025-02-011310.3389/fenrg.2025.14613651461365Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmissionWeiwei Yao0Weiwei Yao1Jie Zhao2Jie Zhao3Jinqiu Dou4Jinqiu Dou5Youhan Deng6Youhan Deng7Yushu Li8Yushu Li9Yilin Liang10Yilin Liang11Jing Chen12Jing Chen13Laboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaScience and Technology Research Institute, China Three Gorges Corporation, Beijing, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaHubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan University, Wuhan, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaHubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan University, Wuhan, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaScience and Technology Research Institute, China Three Gorges Corporation, Beijing, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaScience and Technology Research Institute, China Three Gorges Corporation, Beijing, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaHubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan University, Wuhan, ChinaLaboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan, ChinaScience and Technology Research Institute, China Three Gorges Corporation, Beijing, ChinaThe transient overvoltage caused by faults in ultra-high-voltage direct current (UHVDC) transmission lines and alternating current (AC) systems can adversely affect system safety and stability. This study theoretically analyzes the transient overvoltage generation mechanism caused by DC single-pole ground faults and typical fault conditions in two different cases by combining the DC line and AC system of the transmitting side. Considering the different generation mechanisms of the two transient overvoltages, the main factors affecting transient overvoltages were determined to be the DC line ground fault location, DC filter main capacitance, AC system short-circuit ratio, and DC transmission power. Finally, through a simulation of UHVDC transmission engineering, the relationship between various influencing factors and overvoltage was obtained, which can provide guidance in transmission engineering UHVDC design.https://www.frontiersin.org/articles/10.3389/fenrg.2025.1461365/fullUHVDCtransient overvoltagemechanism analysisshort-circuit ratiofault conditions
spellingShingle Weiwei Yao
Weiwei Yao
Jie Zhao
Jie Zhao
Jinqiu Dou
Jinqiu Dou
Youhan Deng
Youhan Deng
Yushu Li
Yushu Li
Yilin Liang
Yilin Liang
Jing Chen
Jing Chen
Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
Frontiers in Energy Research
UHVDC
transient overvoltage
mechanism analysis
short-circuit ratio
fault conditions
title Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
title_full Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
title_fullStr Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
title_full_unstemmed Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
title_short Generation mechanism and influencing factors of transient overvoltage on ultra high-voltage direct current transmission
title_sort generation mechanism and influencing factors of transient overvoltage on ultra high voltage direct current transmission
topic UHVDC
transient overvoltage
mechanism analysis
short-circuit ratio
fault conditions
url https://www.frontiersin.org/articles/10.3389/fenrg.2025.1461365/full
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