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Article Dans Une Revue Australian Journal of Basic and Applied Sciences Année : 2013

Sensorless Fuzzy Sliding Mode Speed Controller for DTC of Induction Motor based on DSVM

Résumé

Direct Torque Control (DTC) is known to produce quick and robust response in ac drives. However, in the classical DTC scheme, due to the limited number of the VSI voltage vectors, large and small errors can not be distinguished. In fact, the switching vectors chosen for large errors are the same as those chosen for small errors. This problem appears in fluctuations form, during steady state in torque, flux, and current. They are reflected in flux and torque estimation, and also in speed response. In this paper, a DTC based on Discrete Space Vector Modulation (DSVM) for Induction Motor (IM) sensorless drive with Fuzzy Sliding Mode Speed Controller (FSMSC) is presented. The proposed control system is able to reduce the torque, flux, current, and speed pulsations during steady state. The rotor speed and stator flux are estimated by the Model Reference Adaptive System (MRAS) scheme which is determined from measured terminal voltages and currents. The speed estimator is then applied to sensorless Discrete Space Vector Modulation-Direct Torque Control (DSVM-DTC) of IM drive system. The FSMSC is used in order to increase the performances and the robustness of the speed closed loop. The performance of the drive system has been verified by simulation tests, and good results have been achieved in both steady-state and transient operating conditions.
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Dates et versions

hal-00985007 , version 1 (29-04-2014)

Identifiants

  • HAL Id : hal-00985007 , version 1

Citer

Ahmed Massoum, Abdelkader Meroufel, Abdelhakim Hammoumi, Patrice Wira. Sensorless Fuzzy Sliding Mode Speed Controller for DTC of Induction Motor based on DSVM. Australian Journal of Basic and Applied Sciences, 2013, 7 (4), pp.304-317. ⟨hal-00985007⟩

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