Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Design of Tower Damper Gain Scheduling Algorithm for Wind Turbine Tower Load Reduction

풍력터빈 타워 하중 저감을 위한 타워 댐퍼 게인 스케줄링 알고리즘 설계

  • Kim, Cheol-Jim (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Kim, Kwan-Su (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Paek, In-Su (Division of Advanced Mechanical and Biomedical, Mechatronics and Materials Kangwon National University)
  • 김철진 (강원대학교 기계융합공학과) ;
  • 김관수 (강원대학교 기계융합공학과) ;
  • 백인수 (강원대학교 기계의용.메카트로닉스.재료공학부)
  • Received : 2017.10.18
  • Accepted : 2018.04.20
  • Published : 2018.04.30
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Abstract

This paper deals with the NREL (National Renewable Energy Laboratory) 5-MW reference wind turbine. The controller which include MPPT (Maximum power point tracking) control algorithm and tower load reduction control algorithm was designed by MATLAB Simulink. This paper propose a tower damper algorithm to improve the existing tower damper algorithm. To improve the existing tower damper algorithm, proposed tower damper algorithm were applied the thrust sensitivity scheduling and PI control method. The thrust sensitivity scheduling was calculated by thrust force formula which include thrust coefficient table. Power and Tower root moment DEL (Damage Equivalent Load) was set as a performance index to verify the load reduction algorithm. The simulation were performed 600 seconds under the wind conditions of the NTM (Normal Turbulence Model), TI (Turbulence Intensity)16% and 12~25m/s average wind speed. The effect of the proposed tower damper algorithm is confirmed through PSD (Power Spectral Density). The proposed tower damper algorithm reduces the fore-aft moment DEL of the tower up to 6% than the existing tower damper algorithm.

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References

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