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2018 Vol.38, Issue 2
Design of Tower Damper Gain Scheduling Algorithm for Wind Turbine Tower Load Reduction

풍력터빈 타워 하중 저감을 위한 타워 댐퍼 게인 스케줄링 알고리즘 설계

Cheol-Jim Kim1
,
Kwan-Su Kim1
,
In-Su Paek2*
김 철진1
,
김 관수1
,
백 인수2*
1Department of Advanced Mechanical Engineering, Kangwon National University
2Division of Advanced Mechanical and Biomedical, Mechatronics and Materials Kangwon National University
1강원대학교 기계융합공학과
2강원대학교 기계의용･메카트로닉스･재료공학부
*교신저자. *Corresponding Author. 
30 April 2018. pp. 1-13
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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.

Keywords
Load reduction
Damage Equivalent load
Power spectral density
Tower root bending moment
Thrust force

키워드
하중저감
손상 등가하중
파워스펙트럼 밀도
타워 뿌리부 굽힘모멘트
추력
References
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Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 38
  • No :2
  • Pages :1-13
  • Received Date : 2017-10-18
  • Revised Date : 2018-02-06
  • Accepted Date : 2018-04-20
  • DOI :https://doi.org/10.7836/kses.2018.38.2.001
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