Voltage Control Strategy for Large-Scale Wind Farm with Rapid Wind Speed Fluctuation

Xi Cai, Zhangbin Yang, Pan Liu, Xueguang Lian, Zhuang Li, Guorong Zhu () and Hua Geng
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Xi Cai: China Three Gorges Construction Engineering Corporation, Chengdu 610095, China
Zhangbin Yang: China Three Gorges Construction Engineering Corporation, Chengdu 610095, China
Pan Liu: China Three Gorges Construction Engineering Corporation, Chengdu 610095, China
Xueguang Lian: China Three Gorges Construction Engineering Corporation, Chengdu 610095, China
Zhuang Li: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Guorong Zhu: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Hua Geng: Department of Automation, Tsinghua University, Beijing 100084, China

Energies, 2024, vol. 17, issue 9, 1-11

Abstract: In large-scale wind farms, the voltage fluctuations caused by the uncertainty of wind speed at the turbine terminals pose a pressing challenge. This article presents a localized voltage control strategy tailored toward rapid adjustments in turbine terminal voltage in wind turbine generators. Based on relative voltage observation, this strategy achieves voltage coordination between the high and low ends of the transformer in wind turbine generators. Firstly, the overall structure of the wind farm and the characteristics of terminal voltage are analyzed. Secondly, the principles and feasibility of the relative voltage control strategy are examined. Finally, the effectiveness of the proposed control strategy is validated through simulation results from a specific wind farm. The results demonstrate its capability to achieve a fast and stable voltage dynamic response within the wind farm based on local information, thus mitigating the risk of voltage out of limit.

Keywords: wind farm; local reactive power regulation; voltage stability; local voltage observation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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