- POWER-ON SHUTDOWN OF FUEL CELL POWER PLANT FOR ENHANCED DURABILITY

摘要

A description of a modified shutdown of the fuel cell power plant 14 in which the fuel cell stack assembly 26 is received and which supplies power to the moving vehicle 12 is disclosed. The vehicle travels at intervals for its re-supply to the station 10, which characteristically comprises one or more resources (20, 20A, 20B, 20C, etc.) used by the fuel cell power plant. One such resource provided by the station / station is electrical energy 20A, and the auxiliary operation of the fuel cell power plant 14 may be activated for a period of time that extends the active protective hydrogen on state significantly through the power on operating mode, And to utilize the availability of such electrical energy 20A to hold it for many hours to several days or more. The power-on mode maintains a low level of hydrogen introduction and circulation sufficient to at least maintain a predetermined presence of hydrogen, e.g., pressure, in the fuel cell stack assembly 26.