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http://dx.doi.org/10.5207/JIEIE.2006.20.4.021

The Characteristics Analysis and Design of High-Frequency Isolated Type ZVZCS PS-PWM DC-DC Converter with Fuel Cell Generation System  

Suh, Ki-Young (경남대학교 전기공학과)
Mun, Sang-Pil (경남대 대학원 전기공학과)
Kim, Dong-Hun (경남대 전기공학과)
Lee, Hyun-Woo (경남대 전기공학과)
Kwon, Soon-Kurl (경남대 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.20, no.4, 2006 , pp. 21-28 More about this Journal
Abstract
In this paper, the proposed full-bridge high frequency isolated zoo voltage and zero current switching phase shifted pulse width modulation(ZVZCS PS-PWM)DC-DC converter among fuel cell generation system consist of 1.2[kW] fuel cell of Nexa Power Module, full-bridge DC-DC converter to boost the fuel cell low voltage($28{\sim}43[%]$) to 380[VDC] and a single phase full-bridge inverter is implemented to produce AC output(220[VAC], 60[Hz]). A tapped inductor filter with freewheeling diode is newly implemented in the output filter of the proposed full-bridge high frequency isolated ZVZCS PS-PWM DC-DC converter to suppress circulating current under the wide output voltage regulation range, thus to eliminate the switching and transformer turn-on/off over-short voltage or transient phenomena. Besides the efficiency of $93{\sim}97[%]$ is obtained over the wide output voltage regulation ranges and load variations.
Keywords
Full-Bridge DC-DC Converter; High Frequency Transformer; Phase Shifted PWM Control; Lossless Snubber Capacitors; Tapped Inductor Filter; Freewheeling Diode;
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