Input current-ripple reduction of a pulse-link DC-AC converter for fuel cells

Kentaro Fukushima, Isami Norigoe, Tamotsu Ninomiya, Masahito Shoyama, Yosuke Harada, Kenta Tsukakoshi

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

1 Citation (Scopus)

Abstract

This paper considers that the mechanism of input current-ripple on pulse-link DC-AC converter for fuel cells. And the reduction methods are shown. In general, fuel cells are weak about current ripple. The current-ripple damages to the fuel capacity and life span because the chemical reaction time when generates electricity is much slower than commercial frequency. Therefore, the input current-ripple reduction is essential factor in the DC-AC converter for fuel cells applications. In the conventional DC-AC converter topology, large smoothing capacitor is worked as the input current-ripple reduction. However, this large capacitor makes it difficult to reduce the size of DC-AC converter unit. Authors have proposed a novel topology called as pulse-link DC-AC converter. In this topology, a large capacitor for the smoothed DC power source is not needed because the first-stage boost converter provides boosted voltage pulse directly to PWM inverter. Instead, a series-connected LC circuit is inserted to reduce the input current-ripple. Furthermore, when duty ratio is controlled by sensing input current, input current-ripple is reduced less than 1Amp.

Original languageEnglish
Title of host publicationINTELEC 2008: 30th Annual International Telecommunications Energy Conference
DOIs
Publication statusPublished - 2008
Event30th Annual International Telecommunications Energy Conference, INTELEC 2008 - San Diego, CA, United States
Duration: Sep 14 2008Sep 18 2008

Other

Other30th Annual International Telecommunications Energy Conference, INTELEC 2008
CountryUnited States
CitySan Diego, CA
Period9/14/089/18/08

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Fukushima, K., Norigoe, I., Ninomiya, T., Shoyama, M., Harada, Y., & Tsukakoshi, K. (2008). Input current-ripple reduction of a pulse-link DC-AC converter for fuel cells. In INTELEC 2008: 30th Annual International Telecommunications Energy Conference [4664104] https://doi.org/10.1109/INTLEC.2008.4664104