Fuel cell power plant fuel control

Details Fuel cell power plant fuel control Fuel cell power plant fuel control

1989-10-24

1991-04-23

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 24, H01M 804

Patent

active

050099671

ABSTRACT:
Fuel cell current is sensed (30) and during a transient, a feed forward demand signal (50) sent to the fuel flow regulator (58). A nominal desired reformer temperature is established for the new fuel cell current. This desired temperature signal (62) is dynamically compensated (64) to establish the operating temperature set point (72). A predominantly lead compensation (66) is achieved for a desired temperature increase and a predominantly lag compensation (68) for a desired temperature decrease. Increased reliance on the temperature as a result of the system input reduces reliance on the accuracy of fuel flow measurement and on the consistency of fuel heating value.

REFERENCES:
patent: 3343991 (1967-09-01), Koenig
patent: 3585077 (1971-06-01), Waldman
patent: 3745047 (1973-07-01), Fanciullo et al.
patent: 4046956 (1977-09-01), Fanciullo

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