Fuel cell system and fuel cell state detection method

H - Electricity – 01 – M

Patent

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H01M 8/04 (2006.01) G01R 31/36 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2740572

A fuel cell system (100) includes: a fuel cell stack (10) formed by stacking a plurality of call groups each of which includes at least one cell (11); voltage detection units (41) that detect cell group voltages of the respective cell groups; and a determination unit (52) that determines whether the cell group voltage of a determination-target cell group that is selected from among the plurality of cell groups is equal to or lower than the threshold voltage that is obtained based on the average value and the standard deviation of the cell group voltages of the cell groups in a population that is formed of at least two of the cell groups selected from among the plurality of cell groups.

L'invention porte sur un système de pile à combustible (100) qui comprend : un empilement de piles à combustible (10) formé par empilement d'une pluralité de groupes de piles, dont chacun comprend au moins une pile (11) ; des unités de détection de tension (41) qui détectent des tensions de groupe de piles des groupes de piles respectifs ; et une unité de détermination (52) qui détermine si la tension de groupe de piles d'un groupe de piles cible de détermination qui est sélectionné parmi la pluralité de groupes de piles est égale ou inférieure à la tension seuil qui est obtenue sur la base d'une valeur moyenne et de l'écart-type des tensions de groupe de piles des groupes de piles dans une population qui est formée d'au moins deux des groupes de piles choisis parmi la pluralité de groupes de piles.

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