Homogeneous higher order sliding mode control for PEM Fuel Cell

This paper presents a homogeneous higher order sliding mode control applied to a nonlinear model of Polymer Electrolyte Membrane Fuel Cells PEMFC. The control strategy combines first order sliding mode control with homogeneous finite time stabilization of integrator chain. The proposed nonlinear control law is aimed at protecting the membrane from damage by keeping the pressure deviations between cathode and anode as small as possible during large disturbances and prolonged the stack life of PEMFC. Simulation results show that the proposed controller has a good transient performance under load variations and parametric uncertainties.