Abstract

In this note, a passivity feedback equivalent controller with sliding mode is designed in order to achieve speed tracking for a symmetrical three phase induction motor. It is shown, in particular, that if the nominal passive system obtained by feedback equivalence is asymptotically stabilized by state feedback, then the result is extended to output feedback when adding an observer for flux estimation. Finally the sliding mode technique is used for the uncertain system which remains also stable provided the upper bounds of the uncertainties are known.

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