Dynamic Model of a Proton-Exchange Membrane Fuel Cell using Equivalent Electrical Circuit

摘要

This work aims to establish a new simplified dynamic model for a proton-exchange membrane fuel cell (PEMFC) which is an electrochemical device that converts the fuel (hydrogen) into electricity. This model captures the voltage-current (V-I) runtime dynamics using an equivalent electrical circuit. These electrical characteristics are critical when integrating the fuel cell with power conditioning unit (PCU). All the equivalent electrical circuit parameters are assumed to be a function of the normalized hydrogen pressure from the external tank to effectively capture the non-linear behavior. The results show reasonably accurate model prediction with a minimal error in the order of millivolts.