工矿自动化2013，Vol.39Issue(8)：80-84,5.DOI:10.7526/j.issn.1671-251X.2013.08.021
改进型双馈风力发电机最大功率点跟踪策略
Improved maximum power point tracking strategy of doubly-fed wind generator
梁轶群 1王华君 1陈林1
作者信息
- 1. 河北工业大学控制科学与工程学院,天津300130
- 折叠
摘要
Abstract
In view of problem that traditional extremum seeking strategy of maximum power point tracking of doubly-fed wind generator takes sine signal as seeking signal,and the sine signal is difficult to be distinguished from output signal,the paper proposed an improved maximum power point tracking strategy which uses wind turbulence as extremum seeking signal.The improved strategy makes Fourier transform for blade top speed ration and power coefficient to obtain phase difference information,so as to determine change direction of blade top speed ration to make doubly-fed wind generator reach the best running point.The simulation result shows that the improved strategy can control rotational speed of wind generator to track change of wind speed well and realizes maximum wind energy capturing in running region under rated wind speed.关键词
风力发电机/双馈感应发电机/最大功率点跟踪/风湍流/极值搜索/风能捕获/叶尖速比/功率系数Key words
wind generator/ doubly-fed induction generator/ maximum power point tracking/ wind turbulence/extremum seeking/ wind energy capturing/ blade top speed ration/ power coefficient分类
矿业与冶金引用本文复制引用
梁轶群,王华君,陈林..改进型双馈风力发电机最大功率点跟踪策略[J].工矿自动化,2013,39(8):80-84,5.
