Publication date
January 1994
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
An observer for speed sensorless induction motor drive is proposed in the paper. It is easy to implement on a microprocessor with particular reference to high performances drives requiring vectorial control techniques which need of a flux observer. The proposed speed observer is based on an adequate arrangement of the error system equations, written in complex form in order to describe a full order flux observer. The results obtained by a numerical simulation show a very fast drive response, high accuracy of the velocity, flux and currents estimation and a good robustness to the rotor resistance variations
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