풍력에너지저널 (Journal of Wind Energy)

  • 제13권2호
  • /
  • Pages.13-22
  • /
  • 2022
  • /
  • 2093-5099(pISSN)
  • /
  • 2733-9467(eISSN)
한국풍력에너지학회 (Korea Wind Energy Association)
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피크쉐이빙 제어를 적용한 부유식 해상풍력시스템의 네거티브 댐핑 현상 완화 및 출력 성능 개선 연구

Study on Mitigation of Negative Damping Phenomenon and Improvement of Power Performance of a Floating Offshore Wind System Using Peak Shaving Control

  • 김정태 (고등기술연구원, 그린에너지인텔리전스센터) ;
  • 손재훈 (고등기술연구원, 그린에너지인텔리전스센터) ;
  • 김관수 (고등기술연구원, 그린에너지인텔리전스센터) ;
  • 고혁준 (고등기술연구원, 그린에너지인텔리전스센터) ;
  • 박종포 (고등기술연구원, 그린에너지인텔리전스센터)
  • Jungtae Kim ;
  • Jaehoon Son ;
  • Kwansu Kim ;
  • Hyeokjun Koh ;
  • Jongpo Park
  • 투고 : 2021.12.13
  • 심사 : 2022.05.26
  • 발행 : 2022.06.30
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초록

In this study, the resonant motion of a floating offshore wind system due to negative damping was mitigated by peak shaving algorithms of the NREL ROSCO controller, and the decreased gains of the blade pitch controller by the gain detuning method for the floating system was increased to the gains of onshore baseline controller to improve the power performance of the turbine. To check the performance of the controller, the dynamic responses between the existing gain-detuned pitch controller and the ROSCO controller with peak shaving control for an OC4 floating offshore wind system were compared. As a result of DLC1.1 at near-rated wind speed, when peak shaving was applied, the average generator power decreased by 1.9%, but it was confirmed that the standard deviation was reduced and stability was improved with fast pitch regulation. In addition, since peak shaving reduces the maximum thrust of the rotor, was confirmed that not only are the loads of the blades and tower reduced, but the surge motion of the floater is also reduced, and the tension of the mooring lines is reduced.

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과제정보

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다. (No. 20193010025810, No. 20213040020060)

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