전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제62권7호
  • /
  • Pages.918-924
  • /
  • 2013
  • /
  • 1975-8359(pISSN)
  • /
  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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주파수의 최대 변화율을 이용한 풍력단지 가상관성제어

Virtual Inertial Control of a Wind Power Plant using the Maximum Rate of Change of Frequency

  • 김두연 (전북대 대학원 전기공학과) ;
  • 김진호 (전북대 대학원 전기공학과) ;
  • 이진식 (전북대 대학원 전기공학과) ;
  • 김연희 (전북대 대학원 전기공학과) ;
  • 전영환 (홍익대 전자전기공학부) ;
  • 강용철 (전북대 공대 전기공학과)
  • Kim, Dooyeon (Dept. of Electrical Engineering, Chonbuk National University) ;
  • Kim, Jinho (Dept. of Electrical Engineering, Chonbuk National University) ;
  • Lee, Jinshik (Dept. of Electrical Engineering, Chonbuk National University) ;
  • Kim, Yeon-Hee (Dept. of Electrical Engineering, Chonbuk National University) ;
  • Chun, Yeong-Han (Dept. of Electrical Engineering, Hongik University) ;
  • Kang, Yong Cheol (Dept. of Electrical Engineering, Chonbuk National University)
  • 투고 : 2013.05.20
  • 심사 : 2013.06.17
  • 발행 : 2013.07.01
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초록

In a conventional power system, the frequency is recovered to the nominal value by the inertial, primary, and secondary responses of the synchronous generators (SGs) after a large disturbance such as a generator tripping. For a power system with high wind penetration, the system inertia is significantly reduced due to the maximum power point tracking control based operation of the variable speed wind generators (WGs). This paper proposes a virtual inertial control for a wind power plant (WPP) based on the maximum rate of change of frequency to release more kinetic energy stored in the WGs. The performance of the proposed algorithm is investigated in a model system, which consists of a doubly fed induction generator-based WPP and SGs using an EMTP-RV simulator. The results indicate that the proposed algorithm can improve the frequency nadir after a generator tripping. In addition, the algorithm can lead the instant of a frequency rebound and help frequency recovery after the frequency rebound.

키워드

참고문헌

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