The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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An Effect of Pitch Gain-Scheduling on Shaft Vibration Response of Wind Turbine

풍력터빈 축 진동 응답에 대한 피치 게인-스케쥴링의 효과

  • 임채욱 (한밭대학교 기계공학과) ;
  • 조준철 (한밭대학교 기계공학과 대학원)
  • Received : 2011.09.23
  • Accepted : 2012.02.01
  • Published : 2012.04.01
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Abstract

Pitch control of wind turbine is activated above rated wind speed for the purpose of rated power regulation. When we design pitch controller, its gain-scheduling is essential due to nonlinear characteristics of aerodynamic torque. In this study, 2-mass model including a vibration mode of drive-train for a 2 MW wind turbine is considered and pitch control with gain-scheduling using a linearization analysis of the nonlinear aerodynamic torque is applied. Some simulation results for the pitch gain-scheduling under step wind speed are presented and investigated. It is shown that gain-scheduling in pitch control is important especially in the region of high wind speeds when there exists a vibration mode of drive-train.

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References

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