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

The Korean Institute of Electrical Engineers (대한전기학회)
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The Method for Harmonics Elimination of a Single Phase Current by the Analog Relay Control Circuit and Passive Filters

릴레이 구동회로 및 수동필터를 이용한 단상 전원의 부하 적응형 고조파 전류 제거 기법

  • 박종연 (강원대 공대 전기전자공학부) ;
  • 이후찬 (강원대 공대 전기전자공학부) ;
  • 이봉진 (강원대 공대 전기전자공학부) ;
  • 최원호 (강원대 공대 전기전자공학부)
  • Published : 2006.06.01
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Abstract

Because of the high cost for the active power filter, passive filters have been widly used to eliminate harmonic currents of nonlinear load and can also improve the power factor. They are not often optimal filters because the passive filters are designed under the fixed load conditions. In this paper we proposed the method which only the necessary harmonic filters are operated by detecting the various harmonic current components. We presents the new control method of passive filter selection type with the relay control circuit which is consist of analog GIC, comparater, flip-flop and etc. By the experimental results using the proposed system for the rectifier load, we concluded that the researched method is cost effective and the performance is better than the passive filter.

Keywords

References

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