| Title |
A Fuzzy Logic Controller Design for Maximum Power Extraction of Variable Speed Wind Energy Conversion System |
| Authors |
김재곤(Kim Jae-gon) ; 허욱열(Huh Uk-youl) ; 김병륜(Kim Byung-yoon) |
| Keywords |
Fuzzy Logic ; Wind Energy Conversion System(WECS) ; Pitch Control |
| Abstract |
This paper presents a modeling and simulation of a fuzzy 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 for 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. |