Analysis, design, and control of bidirectional cascoded configuration for a fuel cell hybrid power system

Wei Shih Liu, Jiann Fuh Chen, Tsorng Juu Liang, Ray Lee Lin, Ching Hsiung Liu

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)

Abstract

This paper presents a cascoded configuration combining a fuel cell (FC), a battery, and an ultracapacitor module (UCM) to create a hybrid power system. A cascoded configuration is constructed using a modified bidirectional flyback converter, which connects the battery and UCM in cascode to efficiently provide hybrid power. An active FC voltage control strategy is presented to manage the power flows of the proposed cascoded system. In this paper, the simulated hybrid power of the motion of an electric vehicle is illustrated in different situations. The experimental results show that the power flows using the proposed control strategy verify the theoretical analysis. In addition, the overall efficiency of the proposed hybrid power system at overload operation is much higher than the conventional one, and it can achieve 96%.

Original languageEnglish
Article number5340636
Pages (from-to)1565-1575
Number of pages11
JournalIEEE Transactions on Power Electronics
Volume25
Issue number6
DOIs
Publication statusPublished - 2010 Jun 14

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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