대한전기학회논문지:전기기기및에너지변환시스템부문B (The Transactions of the Korean Institute of Electrical Engineers B)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

고조파 전류와 불평형 전원전압 보상을 위한 복합형 능동전력 필터

Hybrid-Type Active Power Filters for Compensating Harmonic Current and Unbalanced Source Voltages

  • 이지명 (한국과학재단 신진연구원 연수과정) ;
  • 이동춘 (영남대학교 전자정보공학부)
  • 발행 : 2002.05.01
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초록

In this paper, a novel control scheme compensating source voltage unbalance and harmonic currents for the combined system of series active and shunt passive power filter is proposed, where no low/high-pass filters are used in deriving the reference voltage for compensation. The phase angle and the reference voltages compensating for harmonic current and unbalanced voltage are derived from the positive sequence component of the unbalanced voltage set, which is simply obtained by using digital all-pass filters. In order to remove the phase delay in generating the reference voltage for compensation, the reference of 5th and 7th harmonic components is predicted one-sampling ahead. The validity of the proposed scheme has been verified for 3[kVA] proto-type active power filter system.

키워드

참고문헌

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