Research on the Recovery Voltage of Wind Farm Tie Line during Open-Phase Operation

doi:10.11930/j.issn.1004-9649.2016.08.093.06

Electric Power ›› 2016, Vol. 49 ›› Issue (8): 93-98.DOI: 10.11930/j.issn.1004-9649.2016.08.093.06

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Research on the Recovery Voltage of Wind Farm Tie Line during Open-Phase Operation

WANG Yuelin¹, LI Fengting¹, XIN Chaoshan²

1. Engineering Research Center for Renewable Energy Power Generation and Grid Technology, Ministry of Education, Xinjiang University, Urumqi 830047, China;
2. Economics and Technology Research Institute,State Grid Xinjiang Electric Power Company, Urumqi 830047, China

Received:2015-12-28 Online:2016-08-10 Published:2016-08-12
Contact: This work is supported by National Natural Science Foundation of China (No. 51267019, No.51467019).

Abstract

Abstract: In view of the open-phase running case after single-phase grounding protection action, the voltage characteristics of the fault phase and its influence factors are analyzed. Besides, the impedance characteristics of wind power and conventional energy are studied. The recovery voltage model of fault phase is developed in PSCAD. And the effects of fault properties, wind turbine types, wind power output, tie line arrangement modes as well as voltage levels are simulated and studied. The research results show that the wind farm, quite different from conventional energy, has a positive and negative sequence impedance much higher than the zero sequence impedance when tie line open-phase runs, which results in the increase of sound phase current, and consequently leads to the inductive coupling voltage much higher than that of the conventional energy. The research results can provide a theoretical basis for the adaptive sequential reclosing of wind farm tie line and improve the success rate of reclosing.

Key words: wind farm tie line, open-phase running, capacitive coupling, inductive coupling, recovery voltage

CLC Number:

TM614

WANG Yuelin, LI Fengting, XIN Chaoshan. Research on the Recovery Voltage of Wind Farm Tie Line during Open-Phase Operation[J]. Electric Power, 2016, 49(8): 93-98.

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https://www.electricpower.com.cn/EN/Y2016/V49/I8/93

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Research on the Recovery Voltage of Wind Farm Tie Line during Open-Phase Operation

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