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

IEEE Transactions on Energy Conversion, Volume: PP , Issue: 99, 2013 , Page(s): 1 - 7
A Simple Sliding Mode Controller of a Fifth-Order Nonlinear PEM Fuel Cell Model
Park, G. ; Gajic, Z.
Abstract
Offers a nonlinear control strategy for the well-known nonlinear fifth-order model of a proton exchange membrane (PEM, or polymer electrolyte membrane) fuel cell (PEMFC). Authors describe a simple sliding mode technique for the nonlinear model to keep pressures of hydrogen and oxygen at the desired values despite of changes in the fuel cell current.
Because large deviations between hydrogen and oxygen partial pressures can damage the fuel cell membrane, the controller keeps the pressure difference between hydrogen and oxygen as small as possible after reaching steady state. Since the fuel cell current is considered to be a disturbance, authors apply a sliding mode control technique that copes well with external disturbances and uncertainties. The proposed controller also outperforms the controller previously proposed for this fuel cell model.
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