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This paper describes a design procedure of the gain-scheduling power controller of the proton exchange membrane fuel cell (PEMFC) system with a resistor type load. The controller gain is adjusted according to the operating point determined by stack current and referent power signal. The values of controller gain are determined for several operating points and values of the referent power signal using optimization techniques in program package MATLAB, OPTIMIZATION TOOLBOX. A nonlinear function of the controller gain with respect to the stack current and referent power signal is obtained by interpolation through the determined gain values. The designed controller ensures satisfactory behavior with respect to the given overshoots in the whole operating area.
PEM fuel cell; power control system; gain scheduling controller
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