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Disturbance Accommodating LQR Method Based Pitch Control Strategy for Wind Turbines

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5 Author(s)
Jianlin Li ; Inst. Electr. Eng., Chinese Acad. of Sci., Beijing ; Hongyan Xu ; Lei Zhang ; Zhuying
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A disturbance accommodating Linear Quadratic Regulator (LQR) method was applied in pitch control system to achieve good performance. The disturbance can be estimate by designing state estimator, and a feedback was added into the input to eliminate disturbance effect. The feed back matrix was calculated in accordance to LQR theory. A wind turbine dynamic modal was set up, and simulation of the control system was preformed based on Matlab7.1/simulink. The simulation results show that the controller ensure pitch control actuator little fatigue, and has smaller overshoot. The proposed method is has better performance and easy to realize.

Published in:

Intelligent Information Technology Application, 2008. IITA '08. Second International Symposium on  (Volume:1 )

Date of Conference:

20-22 Dec. 2008