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

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• 作者：Xinfang Zhang ; Daping Xu ; Yibing Liu
• 关键词：Wind turbines ; Adaptive fuzzy control ; Least square support vector machine ; Variable speed ; Variable pitch
• 刊名：Control Theory and Technology
• 出版年：2004
• 出版时间：August 2004
• 年：2004
• 卷：2
• 期：3
• 页码：305-311
• 全文大小：633 KB
• 参考文献：[1]Y. D. Song, B. Dhinakaran, X. Bao. Control of wind turbines using nonlinear adaptive field excitation algorithms [C] // Proc. of the American Control Conf., Chicago, 2000, 3: 1551 - 1555.
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• 作者单位：Xinfang Zhang (1)
  Daping Xu (1)
  Yibing Liu (1)
  
  1. Department of Automatic Control, North China Electric Power University, 102206, Beijing, China
  
• 刊物类别：Control; Systems Theory, Control; Optimization; Computational Intelligence; Complexity; Control, Rob
• 刊物主题：Control; Systems Theory, Control; Optimization; Computational Intelligence; Complexity; Control, Robotics, Mechatronics;
• 出版者：South China University of Technology and Academy of Mathematics and Systems Science, CAS
• ISSN：2198-0942

文摘

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. Keywords Wind turbines Adaptive fuzzy control Least square support vector machine Variable speed Variable pitch