Passivity Control with sliding mode observer of induction motor

In this paper we will present a control based on the passivity of the induction motor - the difficulty of the measurement of flux rotoric is surmounted by a sliding mode observer. A variety (surface) on which the error in estimation of the output is null (stable) is defined. There are established the conditions of sliding (calculation of the observer gains) for which all trajectories of system go towards surface (attractivity) and there remain (invariance). The synthesis of the passivity control with the estimate of flux rotoric by the means of this observer is illustrated by a simulation under Matlab-Simulink. Total stability is guaranteed and the tracking of flux and the torque is reached.

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Zaprezentowano system sterowania silnikiem indukcyjnym przy wykorzystaniu obserwatora ślizgowego. Poszukiwane są warunki ślizgowe dla których wszystkie trajektorie są skierowane do powierzchni i pozostają niezmienne. Symulacje potwierdziły stabilność systemu.