Dynamic performance of a high-temperature PEM (proton exchange membrane) fuel cell - Modelling and fuzzy control of purging process

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Abstract

To improve fuel utilization of HT-PEMFC (high-temperature proton exchange membrane fuel cell), which normally operates under dead-end mode, with properly periodical purging to flush out the accumulated water vapour in the anode flow-field is necessary, otherwise the performance of HT-PEMFC would drop gradually. In this paper, a semi-empirical dynamic voltage model of HT-PEMFC is developed for controller design purpose via fitting the experimental data and validated with experimental results. Then, a fuzzy controller is designed to schedule the purging based on the obtained model. According to the result, the developed model well reflects transient characteristics of HT-PEMFC voltage and the fuzzy controller offers good performance for purging scheduling under uncertain load demands.

Original languageEnglish
Pages (from-to)425-432
Number of pages8
JournalEnergy
Volume95
DOIs
StatePublished - 15 Jan 2016

Keywords

  • Dynamic voltage model
  • Fuzzy control
  • HT-PEMFC
  • Purging

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