홈 > 연구업적 > 국제학술대회
An Improved Current-fed ZVS Isolated Boost Converter for Fuel Cell Applications
작성자 관리자 작성일 2009-08-21
논문집명 IEEE Applied Power Electronics Conference 발행년도 2008. 02
파일1
27.An Improved Current-fed ZVS Isolated Boost Converter for Fuel Cell Applications.pdf

Hyungjoon Kim, Changwoo Yoon, Sewan Choi,“An Improved Current-fed ZVS Isolated Boost Converter for Fuel Cell Applications”

Abstract : This paper proposes a novel current-fed ZVS isolated boost converter suitable for fuel cell applications. Preserving the advantages of the current-fed converter which include smaller input current ripple, lower diode voltage rating and lower transformer turns ratio, the proposed converter does not require any clamping and start-up circuits unlike the conventional current-fed converters. The voltage ratings of the primary switches and secondary diodes of the proposed converter are significantly reduced. The proposed converter can achieve ZVS at a lighter load condition with less leakage inductance. These characteristics of the proposed converter lead to a high overall efficiency over wider load range. Experimental results on a 1kW prototype are provided to validate the proposed concept.