Fuel cell with variable impurity content based on driving mode

Details Fuel cell with variable impurity content based on driving mode Fuel cell with variable impurity content based on driving mode

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 16/00 (2006.01)

Patent

CA 2694337

A fuel cell system has a purge valve that adjusts the amount of nitrogen in a hydrogen circulation channel and a fuel electrode to be discharged through a discharge channel. A purge rate correcting unit variably sets a target control value of the nitrogen content in the hydrogen circulation channel and the fuel electrode by taking into account whether a driving mode is set in a normal power generation mode or an idle mode. An opening of the purge valve is controlled on the basis of the target control value.

L'invention concerne un système de pile à combustible lequel a une vanne de purge qui ajuste la quantité d'azote dans un canal de circulation d'hydrogène et une électrode alimentée en combustible à décharger par un canal de décharge. Une unité de correction du débit de purge règle de façon variable une valeur de régulation cible de la teneur en azote dans le canal de circulation d'hydrogène et l'électrode alimentée en combustible en tenant compte du réglage du mode de fonctionnement en mode de production de courant normal ou en mode inactif. Une ouverture de la vanne de purge est régulée sur la base de la valeur de régulation cible.

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