Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2008.06a
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- Pages.472-474
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- 2008
Hybrid Power Filter for the Zero Sequence Harmonics Reduction in Neutral Line
중성선 영상 고조파 전류 저감을 위한 하이브리드 전력 필터
- Ji, Young-Hyok (Sungkyunkwan University) ;
- Park, Sang-Hoon (Sungkyunkwan University) ;
- Kim, Jae-Hyung (Sungkyunkwan University) ;
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Won, Chung-Yuen
(Sungkyunkwan University)
;
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Song, Sang-Hoon
(Korea Testing Laboratory)
- Published : 2008.06.30
Abstract
According to the development of power switching device technology, the power conversion system is used from the small electric power units to the large industrial instruments. These instruments are operated as harmonic sources in the grid and the harmonics cause zero sequence harmonics in the neutral line. To reduce zero sequence harmonics, the zigzag transformer is used conventionally. But the zigzag transformer can reduce only 60~70% of harmonics. In this paper, hybrid power filter for zero sequence harmonics reduction and the harmonic detection method are proposed.
Keywords