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.
AN OBSERVER FOR SPEED SENSORLESS INDUCTION MOTOR DRIVE
ATTAIANESE, Ciro;
1994-01-01
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.File in questo prodotto:
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