An Equivalent Electrical Circuit Model of Proton Exchange Membrane Fuel Cells Based on Mathematical Modelling

• Main Authors: Dinh An Nguyen, Bernard Davat, Stéphane Raël, Panee Noiying, Melika Hinaje
• Format: Article
• Language: English
• Published: MDPI AG 2012-07-01
• Series: Energies
• Subjects: PEMFC; double layer capacitance; 2D transient model; coupled partial differential equations; dynamic equivalent circuit model; mechanical and electrical analogy
• Online Access: http://www.mdpi.com/1996-1073/5/8/2724

Many of the Proton Exchange Membrane Fuel Cell (PEMFC) models proposed in the literature consist of mathematical equations. However, they are not adequately practical for simulating power systems. The proposed model takes into account phenomena such as activation polarization, ohmic polarization, double layer capacitance and mass transport effects present in a PEM fuel cell. Using electrical analogies and a mathematical modeling of PEMFC, the circuit model is established. To evaluate the effectiveness of the circuit model, its static and dynamic performances under load step changes are simulated and compared to the numerical results obtained by solving the mathematical model. Finally, the applicability of our model is demonstrated by simulating a practical system.