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Performance of PI Controller for Maximum Power Extraction of a Grid-Connected Wind Energy Conversion System  

No, Gyeong-Su (동국대학교 전기공학과, 차세대전력기술연구센터)
Ryu, Haeng-Su (LG전기 전력시험기술센터)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.51, no.8, 2002 , pp. 391-397 More about this Journal
Abstract
This paper presents a modeling and simulation of a PI controller for maximum power extraction of a grid-connected wind energy conversion system with a link of a rectifier and an inverter. It discusses the maximum power control algorithm fnr a wind turbine and proposes, in a graphical form, the relationships of wind turbine output, rotor speed, power coefficient, tip-speed ratio with wind speed when the wind turbine is operated under the maximum power control. The control objective is to always extract maximum power from wind and transfer the power to the utility by controlling both the Pitch angle of the wind turbine blades and the inverter firing angle. Pitch control method is mechanically complicated, but the control performance is better than that of the stall regulation method. The simulation results performed on MATLAB will show the variation of generator's rotor angle and rotor speed, pitch angle, and generator output.
Keywords
Wind Energy Conversion System(WECS); Maximum Power; Pitch Control; D/A Inverter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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