Modeling and control of a novel six-leg three-phase high-power converter for low voltage fuel cell applications

Author

Liu, Changrong ; Johnson, Amy ; Lai, Jih-Sheng

Author_Institution

Virginia Polytech Inst. & State Univ., Blacksburg, VA, USA

Volume

6

fYear

2004

fDate

20-25 June 2004

Firstpage

4715

Abstract

In this paper, an averaged model for a recently proposed novel three-phase transformer-isolated phase-shift DC/DC converter is derived. Fuel cell static and dynamic characteristics are used for the converter power stage design consideration. The controller is then designed based upon the power stage parameters and system dynamic requirements. The entire system has been designed, simulated, and verified with a 3 kW converter prototype and a commercial 1.2 kW fuel cell. The experimental results match the simulation results very well on both fuel cell source dynamic and step load transient responses.

Keywords

DC-DC power convertors; control system synthesis; fuel cells; transient response; 1.2 kW; 3 kW; converter power stage design; fuel cell static; low voltage fuel cell; six-leg three-phase high-power converter; step load transient responses; three-phase transformer-isolated phase-shift DC/DC converter; AC generators; Control design; Fuel cell vehicles; Fuel cells; Low voltage; Power system modeling; Rectifiers; Transformers; Vehicle dynamics; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual

ISSN

0275-9306

Print_ISBN

0-7803-8399-0

Type

conf

DOI

10.1109/PESC.2004.1354833

Filename

1354833