Fuel cell system and method for controlling same

Details Fuel cell system and method for controlling same Fuel cell system and method for controlling same

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2744304

A fuel cell system 100 includes: a fuel cell 1 for generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode 34 and a fuel gas supplied to a fuel electrode 67; a fuel gas supplier HS for supplying the fuel gas to the fuel electrode 67; and a controller 40 for controlling the fuel gas supplier HS to thereby supply the fuel gas to the fuel electrode 67, the controller 40 being configured to implement a pressure change when an outlet of the fuel electrode 67 side is closed, wherein based on a first pressure change pattern for implementing the pressure change at a first pressure width .DELTA.P1, the controller 40 periodically changes a pressure of the fuel gas at the fuel electrode 67.

Linvention concerne un système (100) de pile à combustible, comprenant : une pile à combustible (1) destinée à produire de lénergie électrique par réaction électrochimique entre un comburant gazeux fourni à une électrode à comburant (34) et un combustible gazeux fourni à une électrode à combustible (67) ; un dispositif dalimentation en combustible gazeux (HS) destiné à alimenter lélectrode à combustible (67) en combustible gazeux ; et un dispositif de commande (40) destiné à commander le dispositif dalimentation en combustible gazeux (HS) pour assurer lalimentation de lélectrode à combustible (67) en combustible gazeux et à modifier la pression du combustible gazeux lorsquune sortie côté électrode à combustible (67) est fermée. Le dispositif de commande (40) modifie cycliquement la pression du combustible gazeux dans lélectrode à combustible (67) en fonction dun premier profil de modification de pression de manière à appliquer un premier écart de pression ?P1.

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