Modelling and simulation of a proton exchange membrane (PEM) electrolyser cell

• Model based on physical parameters where possible.
• Documented Simulink model so others can use it.
• Conceived as a research tool for exploring enhanced electrolyser performance.
• Binary diffusion modelled in detail on an atomistic basis.
• Includes mechanisms that are frequently ignored.

An enhanced model of a PEM electrolyser cell is presented, based on linked modular mathematical models of the anode, cathode, membrane and cell voltage. In addition to predicting the overall equilibrium electrolyser cell performance, based on parameters related to the materials of construction and the configuration of its components, the model is a powerful tool for exploring control strategies and understanding the contributions to cell voltage from the various internal components as a guide to researchers aiming for improved performance.