期刊论文

中文

电力系统及其自动化学报

1003-8930

2014

26

4

25-29

10.3969/j.issn.1003-8930.2014.04.005

本校为第一机构

双馈异步风力发电机DFIG (doubly-fed induction wind generator)的运行控制本质是对励磁变流器的控制。为了简化控制算法和提高控制系统响应速度,该文提出了恒功率和无差拍联合控制。该方法通过瞬时功率恒定原理产生三相电流指令值,再利用无差拍控制原理即可计算出控制量。此方法兼具恒功率控制易于设计和无差拍快速响应的优点,在Matlab 环境下建立恒功率和无差拍联合控制仿真模型。仿真结果表明,该控制方法在不对称故障下能有效地抑制直流电压纹波分量。

The operation control essence of doubly-fed induction wind generator （DFIG） is the control of excitation converter.In order to simplify the control algorithm and improve the response speed of control system,a constant power and deadbeat combination control strategy was proposed in this paper.This control strategy produced three-phase current instruction values by instantaneous power constant principle,and then the control volume was calculated by deadbeat control.The control strategy has the advantages of easy design and rapid response.The si...