发明名称 |
FUEL CELL RESUSCITATION METHOD AND APPARATUS |
摘要 |
A fuel cell system includes fuel cells forming a fuel stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a controller is coupled to temporarily increase the oxidant stream flow rate through the oxidant passage, and to temporarily open the fuel purge valve, if a voltage across a pair of fuel cells is less than a defined threshold voltage. In this resuscitation step, the oxidant fl ow rate can be temporarily increased by increasing a duty cycle of an air compressor by approximately 50% for a duration of between approximately 5 to 10 seconds. The controller can further shut down fuel cell operation if a voltage across a pair of fuel cells is less than a defined threshold voltage in an inter-resuscitation period immediately following the resuscitation ste p. |
申请公布号 |
CA2454683(A1) |
申请公布日期 |
2003.02.06 |
申请号 |
CA20022454683 |
申请日期 |
2002.07.25 |
申请人 |
BALLARD POWER SYSTEMS INC. |
发明人 |
GIESECKE, BENNO;JAMES, GREGORY A.;WELLS, BRIAN;UONG, TAN DUC;SKINNER, GEORGE ALEXANDER;SCHEMBRI, CHARLES JOSEPH |
分类号 |
H01M8/10;H01M8/04 |
主分类号 |
H01M8/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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