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Real time implementation of adaptive sliding mode observer based speed sensor less vector control of induction motor

Author(s): Negadi Karim | Mansouri Abdellah | Khtemi Belkheir

Journal: Serbian Journal of Electrical Engineering
ISSN 1451-4869

Volume: 7;
Issue: 2;
Start page: 167;
Date: 2010;
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Keywords: sensor less control | induction motor drives | sliding mode observer | MRAS | modeling | field oriented control | space

Sensor less induction motor drives are widely used in industry for their reliability and flexibility. However, rotor flux and speed sensors are required for vector control of induction motor. These sensors are sources of trouble, mainly in hostile environments, and their application reduces the drive robustness. The cost of the sensors is not also negligible. All the reasons lead to development of different sensor less methods for rotor flux and mechanical speed estimation in electrical drives. The paper deals with the speed estimators for applications in sensor less induction motor drive with vector control, which are based on application of model adaptive, based sliding mode observer methods. This paper presents the development and DSP implementation of the speed estimators for applications in sensor less drives with induction motor.
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