| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1731446 | Energy | 2016 | 8 Pages |
•A semi-empirical dynamic voltage model of HT-PEMFC is developed for control design.•The model is developed via fitting and validated with experimental results.•A fuzzy controller is designed to schedule the purging based on the obtained model.
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.
