The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
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Performance of PI Controller for Maximum Power Extraction of a Grid-Connected Wind Energy Conversion System

계통연계 풍력발전 시스템의 최대출력 제어를 위한 PI 제어기의 성능 분석

  • 노경수 (동국대학교 전기공학과, 차세대전력기술연구센터) ;
  • 류행수 (LG전기 전력시험기술센터)
  • Published : 2002.08.01
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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

References

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