A Simple Sliding Mode Controller of a Fifth-Order Nonlinear PEM Fuel Cell Model

This paper presents a nonlinear control strategy for the well-known nonlinear fifth-order model of a proton exchange membrane (PEM, also known as polymer electrolyte membrane) fuel cell (PEMFC). We propose a simple sliding mode technique for this nonlinear model to keep pressures of hydrogen and oxygen at the desired values despite of changes of the fuel cell current. It is known that large de…