Solving a Dead-lock Problem of NFO-Sinus

University essay from Lunds universitet/Institutionen för reglerteknik

Abstract: This thesis presents, analyzes and suggests solutions to the dead-lock problem of the sensorless variable speed drive NFO Sinus. Friction, measurement, parameter estimation and quantization effects are believed possible origins of this problem and is hence studied. A short introduction to field oriented control of the asynchronous AC motor and the NFO Control strategy is also included

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