Power Converters and AC Electrical Drives with Linear Neural Networks

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Sensorless Control of Induction Machine Drives

6.1 Introduction on Sensorless Control

In the last decade, there has been a strong interest in eliminating the speed or position sensor in the shaft of induction machine (IM) drives, while preserving, however, the high dynamic performance of vector-controlled drives. The techniques for the speed or position estimation of the rotor are called in literature sensorless or encoderless [1–5]. The main advantages of sensorless-controlled drives are the reduced hardware complexity, the lower cost, the reduced size of the drive machine, the elimination of the sensor cables, the better noise immunity, the increased reliability, and the lower maintenance requirements [6]. Moreover, a motor without ...