Rao, Sachit and Utkin, Vadim and Buss, Martin (2010) Design of first- and second-order sliding mode observers for induction motors using a stator-flux model. In: International Journal of Control, 83 (7). pp. 1457-1464.
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We extend current research in the area of 'sensorless' control of induction motors by presenting two observers based on first- and second-order sliding mode control theories for the simultaneous estimation of flux and speed. We base the observers on the stator-flux model of the motor instead of the usual rotor-flux model mainly because of the uncertain rotor resistance that plays a significant role in the latter. By designing the observers as if they are sliding mode controllers, we lend the properties of parameter insensitive closed-loop dynamics and finite time convergence to the stator flux and speed estimation schemes. We also present simulation and experimental results to validate the operation of the observers.
| Item Type: | Journal Article |
|---|---|
| Additional Information: | Copyright of this article belongs to Taylor and Francis Group. |
| Keywords: | induction motors;observers;sliding mode control;stator-flux model;super twisting algorithm |
| Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering) |
| Date Deposited: | 13 Jul 2010 05:40 |
| Last Modified: | 13 Jul 2010 05:40 |
| URI: | http://eprints.iisc.ernet.in/id/eprint/29193 |
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