Experiments of a 20 cell PEFC operating under fault conditions with diode by-pass circuit for uninterrupted power delivery
| Autor: | Gérard Coquery, Denis Candusso, Fabien Harel, Xavier François, Alexandre De Bernardinis |
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| Rok vydání: | 2010 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry business.industry 020209 energy Electrical engineering Extrapolation Energy Engineering and Power Technology Proton exchange membrane fuel cell Fault tolerance 02 engineering and technology 021001 nanoscience & nanotechnology Fault (power engineering) 7. Clean energy Power (physics) Fuel Technology Nuclear Energy and Engineering Stack (abstract data type) 0202 electrical engineering electronic engineering information engineering Optoelectronics 0210 nano-technology business Electrical impedance Diode |
| Zdroj: | Energy Conversion and Management. 51:1044-1054 |
| ISSN: | 0196-8904 |
| DOI: | 10.1016/j.enconman.2009.12.008 |
| Popis: | The work presents the results of experiments related to the electrical and dynamical behaviour of a 500 W, 20 cell Polymer Electrolyte Fuel Cell (PEFC) stack operated under fault condition and connected to an anti-parallel diode acting as a by-pass. The stack is placed in an experimental set-up that reproduces the electrical coupling in series of two fuel cells. The results allow the evaluation of the by-pass diode solution in the case of specific degraded working modes such as the break of the gas reactant feeding. The experiments presented in this article constitute an extrapolation and a complementary investigation of the preliminary results already achieved on a two cell PEFC stack and which had demonstrated the capability of the reverse diode to electrically isolate a fuel cell stack under fault. The proposed experiments focus on the dynamic behaviour of the stack under degraded working modes and point out the key-role of the fuel cell stack impedance in the triggering of the anti-parallel diode switching. |
| Databáze: | OpenAIRE |
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