대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 B
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- Pages.1094-1096
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- 2002
PFC용 부스트 컨버터의 효율 개선에 관한 연구
A Study on the Efficiency Improvement of Boost Converter for Power Factor Correction
- 전내석 (한국해양대학교 전기공학과) ;
- 전수균 (한국해양대학교 전기공학과) ;
- 이성근 (한국해양대학교 전기공학과) ;
- 길경석 (한국해양대학교 전기공학과) ;
- 김윤식 (한국해양대학교 전기공학과)
- Jeon, Nae-Suck (Dept. of Electrical Engineering, Korea Maritime University) ;
- Jeon, Su-Kyun (Dept. of Electrical Engineering, Korea Maritime University) ;
- Lee, Sung-Geun (Dept. of Electrical Engineering, Korea Maritime University) ;
- Kil, Guyng-Suk (Dept. of Electrical Engineering, Korea Maritime University) ;
- Kim, Yoon-Sik (Dept. of Electrical Engineering, Korea Maritime University)
- 발행 : 2002.07.10
초록
A new technique for improving the efficiency of single-phase high-frequency boost converter is proposed. This converter includes an additional low-frequency boost converter which is connected to the main high-frequency switching device in parallel. The additional converter is controlled at lower frequency. Most of the current flows in the low-frequency switch and so, high-frequency switching loss is greatly reduced accordingly. Both switching device are controlled by a simple method; each controller consists of a comparator, a frequency generator and an error amplifier. The converter works cooperatively in high efficiency and acts as if it were a conventional high-frequency boost converter with one switching device, The proposed method is verified by simulation and experiment. This paper describes the converter configuration and design, and discusses the steady-state performance concerning the switching loss reduction and efficiency improvement.
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