Article

Design, modelling, control and simulation of a threephase DC-DC converter for high currents applications

IET Power Electronics (impact factor: 1.62). 05/2011; DOI:10.1049/iet-pel.2010.0210 pp.424 - 434
Source: IEEE Xplore

ABSTRACT In this study, a two-stage DC-DC converter for high current applications is studied. The converter consists of two three-phase full-bridge inverters connected through three AC coupled inductors. A switching-functions-based model of the converter is first established, and then a control scheme is designed for both inverters in order to ensure a high power factor at the AC stage, and a regulated voltage at the DC load. The performance of the proposed control system is verified through numerical simulations. First, an ideal DC source is considered in order to test the performance of the control system, then a proton exchange membrane fuel cell is applied as the DC source in order to highlight the usefulness of this converter in such applications.

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Keywords

AC stage
 
control scheme
 
control system
 
DC load
 
DC source
 
ideal DC source
 
numerical simulations
 
power factor
 
proposed control system
 
proton exchange membrane fuel cell
 
regulated voltage
 
three-phase full-bridge inverters
 
two-stage DC-DC converter
 
usefulness