Analysis and Design of High Power Interleaved Boost Converters for Fuel Cell Distributed Generation System

Author

Xu, Haiping ; Qiao, Ermin ; Guo, Xin ; Wen, Xuhui ; Kong, Li

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2005

fDate

16-16 June 2005

Firstpage

140

Lastpage

145

Abstract

This article proposes a novel topology of high power interleaved boost converter for fuel cell. With thorough analysis of the operating principle of the converter, eight equivalent sub-circuits are described. According to the waveforms of the inductor current, the operation modes of the converter are classified to six kinds, including CCM (continuous conducting mode) and DCM (discontinuous conducting mode), and the uniform state-space averaged model of the converter in CCM and DCM are developed. Based on the transfer function, the two-loop controllers are designed, and a prototype of 150 kW converter that is controlled by DSP-320F2407 is constructed. The volume and weight of the proposed converter are decreased 1/3 than conventional converter and the efficiency is over 97%. The experimental results show that the converter has excellent electrical characteristics, and it can be applied in the fuel cell distributed generation system

Keywords

control system synthesis; design engineering; digital control; digital signal processing chips; distributed power generation; equivalent circuits; fuel cell power plants; power convertors; transfer functions; 150 kW; DSP-320F2407; continuous conducting mode; discontinuous conducting mode; equivalent subcircuits; fuel cell distributed generation system; high power interleaved boost converters; transfer function; uniform state-space averaged model; DC-DC power converters; Distributed control; Fuel cells; Inductors; Power supplies; Prototypes; Switches; Switching converters; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th

Conference_Location

Recife

Print_ISBN

0-7803-9033-4

Type

conf

DOI

10.1109/PESC.2005.1581615

Filename

1581615