Study on the characteristics of boost converter in hybrid fuel cell city bus

Yong Huang, Fan Zeng, Qiang Zhou, Quanshi Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In a hybrid power system where a fuel cell engine and a group of Ni-H batteries are connected together by a bi-directional DC-DC converter, the boosting characteristics of the converter are studied. On the base of analyzing the U-I characteristic of the fuel cell engine, two kinds of characteristics of boost converter, linear and non-linear, are proposed. By establishing the mathematical models between voltage and current, also power and voltage, the output power of the hybrid system under each characteristic is studied, showing that with the non-linear U-I characteristic, the output power of boosting DC-DC converter adaptively follows the voltage of the fuel cell engine, obtaining stable power process. The non-linear characteristic has been validated by experiments and a hybrid power system with it has been applied in the fuel cell city bus developed by Tsinghua University.

Original languageEnglish (US)
Title of host publication2005 IEEE International Conference on Industrial Technology, ICIT 2005
Pages453-458
Number of pages6
DOIs
StatePublished - 2005
Externally publishedYes
Event2005 IEEE International Conference on Industrial Technology, ICIT 2005 - Hong Kong, Hong Kong
Duration: Dec 14 2005Dec 17 2005

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology
Volume2005

Conference

Conference2005 IEEE International Conference on Industrial Technology, ICIT 2005
Country/TerritoryHong Kong
CityHong Kong
Period12/14/0512/17/05

Keywords

  • Fuel cell engine
  • Hybrid power system
  • Power converter
  • U-I characteristic

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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