Intelligent control for large-scale variable speed variable pitch wind turbines

被引：2
作者：
Xinfang Zhang
Daping Xu
Yibing Liu
机构：
[1] North China Electric Power University,Department of Automatic Control
来源：
Journal of Control Theory and Applications | 2004年 / 2卷 / 3期
关键词：
Wind turbines; Adaptive fuzzy control; Least square support vector machine; Variable speed; Variable pitch;
D O I：
10.1007/s11768-004-0015-9
中图分类号：
学科分类号：
摘要：
Large-scale wind turbine generator systems have strong nonlinear multivariable characteristics with many uncertain factors and disturbances. Automatic control is crucial for the efficiency and reliability of wind turbines. On the basis of simplified and proper model of variable speed variable pitch wind turbines, the effective wind speed is estimated using extended Kaiman filter. Intelligent control schemes proposed in the paper include two loops which operate in synchronism with each other. At below-rated wind speed, the inner loop adopts adaptive fuzzy control based on variable universe for generator torque regulation to realize maximum wind energy capture. At above-rated wind speed, a controller based on least square support vector machine is proposed to adjust pitch angle and keep rated output power. The simulation shows the effectiveness of the intelligent control.
引用
收藏
页码：305 / 311
页数：6
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