Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Development of the Harmonics Reduction and Energy Saving Equipment in Variable Loads

부하변동 시의 고조파제거 및 절전기 개발

  • 송영복 (경원대학교 대학원 전기전자공학과) ;
  • 조용현 (세빛(주)) ;
  • 최동진 (경원대 공대 전자.전기정보공학부)
  • Published : 2006.07.31
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Abstract

In this study, in order to obtain high qualify of electric power, single phase active filter which is composed of Zig-Zag transformer and three phase bridge rectifier and capacitor at the secondary of its transformer to be able to reduce the components of the zero phase current and the third harmonic current in neutral line and power line respectively. By connecting this filter to the Zig-Zag transformer and nonlinear load, their third harmonic components due to the nonlinear loads were reduced.

본 연구에서는 부하의 변동 시에 고품질의 전력을 얻기 위하여 중성선과 전력선에 흐르는 각각의 영상 전류 성분과 제3고조파 전류 성분을 감소시킬 수 있는 Zig-Zag 변압기, 그리고 그 변압기의 2차측에 3상 브리지 정류기와 케패시터로 구성된 단상 능동 필터를 제작하였다. 이 단상 능동 필터를 변압기와 비선형 부하에 연결시켜 각 상에 보상 전류를 발생시킴으로써, 비선형 부하로 인하여 발생하는 제3고조파 성분을 감소시킬 수 있었다.

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References

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