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Control System Design of NREL 5MW Wind Turbine

NREL 5MW 풍력터빈의 제어시스템 설계

  • Nam, Yoonsu (Dept. of Mechanical and Mechatronics, Kangwon National University) ;
  • Im, Changhee (Dept. of Mechanical and Mechatronics, Graduate School, Kangwon National University)
  • 남윤수 (강원대학교 기계메카트로닉스공학과) ;
  • 임창희 (강원대학교 대학원 기계메카트로닉스공학과)
  • Received : 2012.07.02
  • Accepted : 2012.10.23
  • Published : 2012.10.30

Abstract

This paper introduces a methodology for NREL 5MW wind turbine, which is the variable speed and variable pitch(VSVP) control system. This control strategy maximizes the power extraction capability from the wind in the low wind speed region and regulates the wind turbine power as the rated one for the high wind speed region. Also, pitch control efficiency is raised by using pitch scheduling.Torque schedule is made of torque table depending on the rotor speed. Torque control is used for vertical region in a torque-rotor speed chart. In addition to these, mechanical loads reduction using a drive train damper and exclusion zone on a torque schedule is tried. The NREL 5MW wind turbine control strategy is comprised by the generator torque and blade pitch control. Finally, proposed control system is verified through GH Bladed simulation.

Keywords

References

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