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Comparison of Response Properties Determined in Two Torque Control Methods for a 2.75-MW Wind Turbine Under Turbulence Wind Speed

난류풍속에 대한 MW급 풍력터빈의 토크제어 방법에 따른 응답 특성 비교

  • Lim, Chae-Wook (Dept. of Mechanical Engineering, Hanbat Nat'l Univ.) ;
  • Seo, Kang-Yoon (Dept. of Mechanical Engineering, Hanbat Nat'l Univ.)
  • 임채욱 (한밭대학교 기계공학과) ;
  • 서강윤 (한밭대학교 기계공학과)
  • Received : 2010.08.27
  • Accepted : 2010.10.21
  • Published : 2010.12.01

Abstract

Torque control of wind turbines is important when the wind speed is below the rated speed. The main objective of torque control is to extract the maximum power from the potential aerodynamic power of the wind. Torque control methods for wind turbines are classified as torque-mode control and speed-mode control. In torque-mode control, which is well known and traditionally used in many wind turbines, the torque demand of the generator is proportional to the square of the generator speed. In speed-mode control, a PI controller is used to generate the appropriate torque demand of the generator. In this study, the two torque control methods mentioned above are applied to a 2.75-MW wind turbine; simulation results for real turbulence wind speeds are presented, and the response properties are compared.

Keywords

Wind Turbine;Torque Control;Torque Mode Control;Speed Mode Control;Power Fluctuation;Power Quality;Turbulence Wind Speed

Acknowledgement

Supported by : 한국에너지 기술평가원(KETEP)

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