Coordinated control for unbalanced operation of stand-alone doubly fed induction generator
发布时间：2021-07-29
点击次数：
影响因子：2.73
DOI码：10.1002/we.1577
发表刊物：Wind Energy
关键字：auto-disturbance rejection control (ADRC); doubly fed induction generator (DFIG); proportional resonant (PR) controller; stand-alone wind-power generation; unbalance
摘要：This paper proposes a coordinated control scheme of a stand-alone doubly fed induction generator (DFIG)-based wind energy conversion system to improve the operation performance under unbalanced load conditions. To provide excellent voltage profile for load, a direct stator flux control scheme based on auto-disturbance rejection control (ADRC) is applied, and less current sensors are required. Due to the virtues of ADRC, the controller has good disturbance rejection capability and is robust to parameter variation. In the case of unbalanced loads, the electromagnetic torque pulsations at double synchronous frequency will exist. To eliminate the undesired effect, the stator-side converter (SSC) is used to provide the negative sequence current components for the unbalanced load. Usually, proportional integral controllers in a synchronous reference frame are used to control SSC. To simplify the algorithm, an improved proportional resonant (PR) control is proposed and used in the current loop without involving positive and negative sequence decomposition. The improved PR provides more degree of freedom which could be used to improve the performance. The effectiveness of the proposed control scheme has been validated by the simulation and experimental results. Copyright (c) 2012 John Wiley & Sons, Ltd.
合写作者：Yao Sun, Hui Wang
第一作者：Xing Li
论文类型：期刊论文
通讯作者：Mei Su
论文编号：20140517255408
学科门类：工学
一级学科：电气工程
文献类型：J
卷号：17
期号：2
页面范围：317-336
ISSN号：1095-4244
是否译文：否
发表时间：2014-02-12
收录刊物：SCI、EI
附件：
Coordinated control for unbalanced operation of stand-alone doubly fed induction generator.pdf