Title :
Pitch control of large scale wind turbine based on fuzzy-PD method
Author :
Zhang, Lei ; Li, Haidong ; Chunliang E ; Li, Jianlin ; Xu, Honghua
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing
Abstract :
The wind turbine operating area can be divided into several regions, depending on wind speed. The control objectives are different for each operating region. This paper mainly deals with the control of a variable speed pitch regulated wind turbine in the full load operating area. The research work presented in this paper is aimed to reduce pitch actuator fatigue and smooth output power above-rated power operating condition. To cope with the nonlinear characteristics of wind turbine, a new control strategy for variable speed pitch-regulated wind turbine is proposed. In the proposed method a variable gains PD controller based on fuzzy control theory is used. A comparison with purposed strategies and PI controllers is performed. Simulation result show that the proposed approach results in better power regulation and less pitch action. The proposed strategy is easy to realize and has stronger robustness.
Keywords :
PD control; fuzzy control; power generation control; wind turbines; fuzzy PD control theory; nonlinear characteristics; pitch control; power regulation; variable speed pitch regulated wind turbine; Actuators; Fatigue; Fuzzy control; Gain; Large-scale systems; PD control; Power generation; Robustness; Wind speed; Wind turbines; fuzzy PD controller; pitch control; power regulation; wind turbine;
Conference_Titel :
Electric Utility Deregulation and Restructuring and Power Technologies, 2008. DRPT 2008. Third International Conference on
Conference_Location :
Nanjuing
Print_ISBN :
978-7-900714-13-8
Electronic_ISBN :
978-7-900714-13-8
DOI :
10.1109/DRPT.2008.4523822