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Sensorless Position and Speed Estimation in Induction Machines
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| Author(s) |
N. Teske; G. Asher; J. Cilia; S. C. Spiteri |
| Abstract |
This paper describes various methods aimed at estimating the rotor position for an AC 3-phase
induction motor without a shaft sensor using specially designed saliencies or natural saliencies. A
High Frequency (HF) signal needs to be injected so as to detect the rotor position. As is common
knowledge, saturation causes problems when estimating rotor position using HF injection. The
saturation effect and ways to overcome this problem are discussed. The methods considered assume a
saturated induction machine having either an engineered cage saliency spanning one pole pitch or a
rotor slotting saliency. The performance of these methods is investigated at all loads at low and zero
speed. |
| Download |
| Filename: | EPE-PEMC2002 - T7-008 - Teske.pdf |
| Filesize: | 1.425 MB |
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| Type |
Members Only |
| Date |
Last modified 2004-05-13 by System |
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