이중 출력용 AC-DC PFC 컨버터
AC-DC power factor compensation converter for dual output
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초록
DC 시스템의 장점은 최근 다시 검토되고 있다. 컴퓨터, LED 조명, LED TV, 세탁기 등과 같은 가전제품은 DC전원을 사용하나 기존의 유틸리티 공급은 AC전원이다. 본 논문에서는 새로이 떠오르는 DC 배전시스템에 적합한 이중 출력 AC-DC PFC 컨버터를 제시한다. 광범위한 DC 부하와 표준 배전 레벨의 요구에 따라 제안된 이중 출력 PFC 컨버터는 동시에 부스트와 벅 출력을 제공도록 설계되었고 정류기가 높은 역률에서 작동되도록 보장한다. 두 개의 DC 출력을동시에 조절하는 폐루프 제어에 적합한 디저털 제어 기법이 구현되었다. 제안한 컨버터의 토폴로지와 작동 원리 및 이론적 분석이 제시되어 있으며, PSIM 소프트웨어를 사용하여 유효성을 확인하였다.
Abstract
The advantages of direct current (DC) systems are being re-examined by researchers. Modern consumer equipment such as computers, LED lights, and home appliances (for example, LED televisions and washing machines) require DC supply for their operation. However, the conventional utility supply is in the form of alternating current (AC). Hence, in this paper, a dual output AC–DC power factor compensation (PFC) converter is proposed as a prospective option for the emerging DC distribution systems. To comply with the need for a vast range of DC loads and standard distribution levels, the proposed dual output PFC rectifier was accordingly designed for providing simultaneous boost and buck outputs. Additionally, it was ensured that the designed rectifier could operate at a high power factor. An appropriate digital control technique was applied for close loop control to simultaneously regulate the two DC outputs. The topology, operating principles, and theoretical analysis of the proposed converter are presented. By using PSIM software, the validation of the converter has been verified.
참고문헌 (6)
- DC Micro-grids Scoping Study-Estimate of Technical and Economic Benefits, "S. Backhaus", U S Department of Energy, ~ (2015)
- Catalog of DC Appliances and Power Systems, Lawrence Berkeley National Lab.(LBNL), "K. Garbesi", Lawrence Berkeley National Lab.(LBNL), ~ (2010)
- R. W. Erickson, "Fundermentals of Power Electronics" (2007), Springer Science & Business Media
- M. B. F. Prieto, "New single-input, multiple-output converter topology : Combining single-switch nonisolated dc-dc converter for single-input, multiple-output applications", IEEE Industrial Electronics Magazine, 10(2), pp.6~20 (2016)
- D. Chen, "Present states and development of the single-stage uninterruptible ac-dc converters", Proceedings of Applied Power Electronics Conference and Exposition, pp.1915~1918 (2009)
- Y. Tang, "A three-level quasi-two-stage single-phase PFC converter with flexible output voltage and improved conversion efficiency", IEEE Transactions on Power Electronics, 30(2), pp.717~726 (2015)