Abstract:
To improve the performance of Proton Exchange
Membrane Fuel Cell (PEMFC) stacks, this paper
conducts research in the comprehensive control of the
operation parameters, such as the work temperature,
current density, pressure, input and output mass flows,
and humidity of the hydrogen and air/oxygen. A brief
analysis is presented about the factors which affect the
performance of PEMFC stack, including the current
density, work temperature, humidification degree,
operation conditions, influence of carbon monoxide, and
internal structures of the stack. A comprehensive
control strategy is proposed and applied to a 500 W
PEMFC system. The experimental results show that the
performance of the PEMFC stack has been improved
comparing with the normal performance.
