Variable gain control scheme of DFIG-based wind farm for over-frequency support

Yujun Li, Zhao Xu, Jianliang Zhang and Kit Po Wong

Renewable Energy, 2018, vol. 120, issue C, 379-391

Abstract: In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

Keywords: Energy cost; Droop gain; Doubly fed induction generator (DFIG); Frequency regulation; Wind turbine (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:120:y:2018:i:c:p:379-391

DOI: 10.1016/j.renene.2017.11.055

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