Design of a phase-shifted ZVS full-bridge front-end DC/DC converter for fuel cell inverter applications

Author

Farneth, Ian P. ; Satinu, Michael B. ; Haoyu Wang ; Khaligh, Alireza ; Potbhare, Siddharth ; Giroux, Stefan ; Akturk, Akin ; Goldsman, Neil

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Maryland, College Park, MD, USA

fYear

2014

fDate

15-18 June 2014

Firstpage

1

Lastpage

6

Abstract

In this paper, a phase-shifted ZVS full-bridge DC/DC converter is investigated and designed to function as the voltage boosting stage of a two stage power inverter for a fuel cell powered Distributed Energy System (DES). Design considerations of the ZVS DC/DC converter are discussed in detail. The complex resonant tank analysis of the converter design is simplified using the state plane approximation technique. This technique is used to obtain a linear small signal model. Using this model, the DC/DC converter is designed and simulated. The simulation results validated the state plane approximation technique. In addition to this, an RCD snubber circuit is employed in order to filter the output noise of the circuit.

Keywords

DC-DC power convertors; LC circuits; approximation theory; bridge circuits; distribution networks; fuel cell power plants; fuel cells; residual current devices; resonant invertors; resonant power convertors; snubbers; zero voltage switching; DES; RCD snubber circuit; complex resonant tank analysis; distributed energy system; filter; fuel cell inverter application; phase-shifted ZVS full-bridge front-end DC-DC converter; state plane approximation technique; two stage power inverter; voltage boosting stage; Capacitance; Fuel cells; Inverters; MOSFET; Snubbers; Switches; Zero voltage switching; DC/DC converter; RCD snubber; fuel cell; full bridge; phase-shift; pulse width modulation; zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Conference and Expo (ITEC), 2014 IEEE

Conference_Location

Dearborn, MI

Type

conf

DOI

10.1109/ITEC.2014.6861778

Filename

6861778