A real-time estimation and control scheme for induction motors based on sliding mode theory |
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| Authors: | Oscar Barambones Patxi Alkorta Jose Maria Gonzalez de Durana |
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| Institution: | 1. Vitoria Engineering School, University of the Basque Country, Nieves Cano 12, 01006 Vitoria, Spain;2. Eibar Engineering School, University of the Basque Country, Otaola, 29, 20600 Eibar, Spain |
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| Abstract: | In this paper a sliding mode position control for high-performance real-time applications of induction motors is developed. The design also incorporates a sliding mode rotor flux estimator in order to avoid the flux sensors. The proposed control scheme presents a low computational cost and therefore can be implemented easily in a real-time applications using a low cost Digital Signal Processor (DSP). The stability analysis of the observer and the controller, under parameter uncertainties and load torque disturbances, is provided using the Lyapunov stability theory. Finally simulated and experimental results show that the proposed controller with the proposed observer provides a good trajectory tracking and that this scheme is robust with respect to plant parameter variations and external load disturbances. |
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