Three-Level Bidirectional Converter for Fuel-Cell/Battery Hybrid Power System

Author

Jin, Ke ; Yang, Mengxiong ; Ruan, Xinbo ; Xu, Min

Author_Institution

Aero-Power Sci-tech Center, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

57

Issue

6

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1976

Lastpage

1986

Abstract

A novel three-level (3L) bidirectional converter (BDC) is proposed in this paper. Compared with the traditional BDC, the inductor of the 3L BDC can be reduced significantly so that the dynamic response is greatly improved. Hence, the proposed converter is very suitable for fuel-cell/battery hybrid power systems. In addition, the voltage stress on the switch of the proposed converter is only half of the voltage on the high-voltage side, so it is also suitable for high-voltage applications. The operation principle and the implementation of the control circuit are presented in detail. This paper also proposes a novel bidirectional soft-start control strategy for the BDC. A 1-kW prototype converter is built to verify the theoretical analysis.

Keywords

DC-DC power convertors; battery storage plants; dynamic response; fuel cell power plants; power inductors; bidirectional soft-start control strategy; control circuit; dynamic response; fuel-cell-battery hybrid power system; high-voltage applications; power 1 kW; three-level bidirectional converter; voltage stress; Battery; bidirectional converter (BDC); fuel cell (FC); three-level (3L) converter;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2009.2031197

Filename

5229315