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Power Control of a Pitch-controlled Wind Power System  

임종환 (제주대학교 생산공학과)
허종철 (제주대학교 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.4, 2003 , pp. 84-91 More about this Journal
Abstract
The paper presents a power control algorithm for a full pitch-controlled wind power system. The design of a pitch controller, in general, is performed by linearizing the torque in the vicinity of a operating point assuming the tip speed ratio is constant. For power control, however, the tip speed ratio is no longer a constant. In this study, a reference pitch model is derived in terms of a wind speed, angular velocity, and pitch angle. The reference pitch model is used to design a controller without linearizing the non-linear torque model of the blade. The validity of the algorithm is demonstrated with the results produced through sets of simulation.
Keywords
Wind power system; Pitch control; Power control; Reference pitch model;
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