Experimental investigation of a soft-switching three-phase, three-voltage bus DC/DC converter for fuel cell vehicle applications

Lixin Tang, Gui Jia Su

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

A soft-switching three-phase, three-voltage (14V/42V/High Voltage) bus dc/dc converter is presented for power management in fuel cell vehicle applications. It features reduced ripple currents, smaller capacitances, high efficiency and a larger power handling capability. The mathematic model is derived and used in the determination of the soft-switching criteria with and without the 14 V bus load current. The topology was verified experimentally with a 6 kW prototype that occupies a small foot print of 19.8 cm × 27.9 cm. The efficiency of the converter is above 96% in most load conditions with a maximum efficiency of 96.99%. An efficiency of 95.2% was achieved at the maximum output power of 6.4 kW in the boost mode. Dynamic response test results in the buck and boost modes are also shown.

Original languageEnglish
Title of host publicationPESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Proceedings
Pages585-591
Number of pages7
DOIs
StatePublished - 2008
EventPESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Rhodes, Greece
Duration: Jun 15 2008Jun 19 2008

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306

Conference

ConferencePESC '08 - 39th IEEE Annual Power Electronics Specialists Conference
Country/TerritoryGreece
CityRhodes
Period06/15/0806/19/08

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