Title :
A high-efficiency bidirectional buck-boost DC-DC converter
Author :
Stahl, Greg ; Rodriguez, Miguel ; Maksimovic, Dragan
Author_Institution :
Colorado Power Electron. Center, Univ. of Colorado at Boulder, Boulder, CO, USA
Abstract :
This paper presents efficiency optimization and implementation of a bidirectional DC-DC converter based on the four-switch, non-inverting buck-boost configuration. The converter is intended for DC power systems to interface different sources or loads to a common DC bus, operating over a wide range of voltages. The number of converter phases, switching frequency, and inductor parameters are determined by an iterative efficiency optimization approach. The experimental 500W bidirectional converter operates from 12-38V at the source/load port to 21-32V at the bus port, with up to 97% efficiency.
Keywords :
DC-DC power convertors; inductors; iterative methods; optimisation; power systems; switching convertors; DC power system; common DC bus port; converter phase; four-switch noninverting buck-boost configuration; high-efficiency bidirectional buck-boost DC-DC converter; inductor parameter; iterative efficiency optimization approach; power 500 W; source-load port; switching frequency; voltage 12 V to 38 V; Inductors; MOSFETs; Materials; Optimization; Switches; Switching frequency; Windings;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
DOI :
10.1109/APEC.2012.6165997
