Fuel cell system
The disclosure provides a fuel cell system comprising a fuel cell stack and an electrical control unit configured to adjust operating parameters of the fuel cell stack to optimize operation of the fuel cell system based on a standard deviation of voltage outputs from a plurality of cells in the fuel cell stack.
1. A fuel cell system comprising a fuel cell stack, heater plates provided at opposing ends of the fuel cell stack, and an electrical control unit configured to adjust operating parameters of the fuel cell stack including a level of heat applied to the fuel cell stack by means of the heater plates to optimize operation of the fuel cell system based on a standard deviation of voltage outputs from a plurality of cells in the fuel cell stack, wherein the electrical control unit is configured to optimize operation of the fuel cell system by adjusting the operating parameters of the fuel cell stack to reduce the function
f (σ v ,P p )=α(σ v ) 2 +β( P p ) 2
where σ v is a standard deviation of the voltage outputs of the plurality of cells, P p is a parasitic load consumed by the heater plates and α, β are constants.