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Energies 2017, 10(3), 281; doi:10.3390/en10030281

Relative Voltage Control of the Wind Farms Based on the Local Reactive Power Regulation

State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
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Academic Editor: Frede Blaabjerg
Received: 7 October 2016 / Accepted: 22 February 2017 / Published: 27 February 2017
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Abstract

The fast and coordinated voltage control of distributed nodes inside a large scale wind farm is a stringent issue. To achieve the reactive power compensation without a dedicated upper communication system, this paper proposes a relative control strategy based on the local reactive power regulation. This method can realize the voltage coordination of the key equipment and feeder line nodes, on the basis of the relative voltage observations. Firstly, the stability analysis of a certain wind farm with pre-known parameters and structure is studied under the wind power fluctuations. Secondly, the optimal capacity configurations of the reactive power compensators are discussed, with multiple nodes inside the wind farms. Simulation results of a specific wind farm in North Hebei, China, validate the effectiveness of the proposed control, which is equipped with fast and stable voltage dynamic responses, as well as local reactive power compensations without remote communication. View Full-Text
Keywords: wind farm; relative voltage observation; distributed voltage control; local reactive power regulation wind farm; relative voltage observation; distributed voltage control; local reactive power regulation
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Zhao, Y.; Chai, J.; Sun, X. Relative Voltage Control of the Wind Farms Based on the Local Reactive Power Regulation. Energies 2017, 10, 281.

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