A modified reaching phase sliding mode controller for a speed sensorless inducting motor drive using feedback linearization theory

	A modified reaching phase sliding mode controller for a speed sensorless inducting motor drive using feedback linearization theory
Iranian Journal of Science and Technology Transactions of Electrical Engineering
شناسنامه علمی شماره، دوره 27، شماره 4، اردیبهشت 2003، صفحه 679-689
شناسه دیجیتال (DOI): 10.22099/ijste.2013.1041
چکیده
A speed sensorless induction motor drive (IMD) with a modified reaching phase sliding mode controller is introduced. The rotor flux is estimated first, with a simplified rotor flux observer in the rotor reference frame and the feedback linearization theory is used to decouple the dynamic of the motor torque and rotor flux amplitude. Then, a modified reaching sliding mode controller is designed to control the speed of the IMD so that the chattering effects associated with the classical sliding mode speed controllers is eliminated and a fast transient response is also achieved. In addition, a Luenberger speed observer is designed to estimate the IMD speed from the measured terminal voltages and currents. The effectiveness of the proposed approach is demonstrated by a digital simulation study.
کلیدواژه‌ها
Induction motor؛ sliding mode؛ speed controller؛ sensorless؛ feedback linearization

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