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A Modified Sliding Mode Speed Controller for an Induction Motor Drive without Speed Sensor Using the Feedback Linearization Theory
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| Author(s) |
J. Soltani; N. R. Abjadi |
| Abstract |
A speed sensorless induction motor drive (IMD) with a modified sliding mode speed 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 motor torque and rotor flux amplitude. Then, a modified sliding mode speed controller is designed to control the speed of the IMD such 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. |
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| Filename: | EPE-PEMC2002 - T11-001 - Soltani.pdf |
| Filesize: | 499.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-05-13 by System |
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