Fault management in a fuel cell-based system

Details Fault management in a fuel cell-based system Fault management in a fuel cell-based system

2011-01-04

2011-01-04

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for control of operation

C429S428000, C429S429000, C429S431000, C429S432000, C429S433000

Reexamination Certificate

active

07862947

ABSTRACT:
A system includes a fuel cell stack, a power communication path, a first controller and a second controller. The fuel cell stack generates electrical power, and the power communication path is coupled between the fuel cell stack and a load of the system to communicate the electrical power to the load. The power communication path includes a switch, which is operable to selectively couple the fuel cell stack to the load and isolate the fuel cell stack from the load. The first controller has a first response time to control the fuel cell stack and control the power communication path. The second controller has a second response time, which is significantly less than the first response time to monitor the power communication path for a fault condition and take corrective action in response to detecting the fault condition.

REFERENCES:
patent: 6787259 (2004-09-01), Colborn et al.
patent: 2007/0237993 (2007-10-01), Carlsson et al.

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