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

被引：31

作者：

Li, Yujun ^{[1
,2
]}

Xu, Zhao ^{[2
]}

Zhang, Jianliang ^{[3
]}

Wong, Kit Po ^{[4
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, Xian 710049, Shaanxi, Peoples R China

[2] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

[3] Zhejiang Univ, Coll Elect Engn, Hangzhou, Zhejiang, Peoples R China

[4] Univ Western Australia, Sch Elect Elect & Comp Engn, Crawley, WA 6009, Australia

来源：

RENEWABLE ENERGY | 2018年 / 120卷

基金：

中国国家自然科学基金;

关键词：

Energy cost; Droop gain; Doubly fed induction generator (DFIG); Frequency regulation; Wind turbine; CONTROL STRATEGY; TURBINES;

D O I：

10.1016/j.renene.2017.11.055

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：379 / 391

页数：13

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