대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 학술대회 논문집 전문대학교육위원
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- Pages.132-135
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- 2005
무정전전원장치(UPS)의 입출력필터설계에 관한 연구
Design of Input Output Filter of Uninterruptible Power Supply
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Kim, Je-Hong
(Kangneung Yeongdong College) ;
- Cho, Yang-Heang (Kangneung Yeongdong College) ;
- Son, Jae-Hyun (Kangneung Yeongdong College)
- 발행 : 2005.10.14
초록
A design for the input filter and the output filter of a single-phase uninterruptible power supply (UPS) system is proposed. A filter design example is presented. And also, this dissertation describes a reduction of the DC voltage ripple of a single-phase UPS. The input power of proposed UPS fluctuates with twice frequency of the utility source, which causes DC voltage fluctuation. The reduction of the DC voltage fluctuation requires a large DC link capacitor. The proposed method uses a LC series resonant filter paralleled with a conventional smoothing capacitor. The effectiveness of the proposed method was confirmed by simulation results.
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