Journal of Advanced Research in Science and Technology
Volume 5, Numéro 2, Pages 792-803
2018-09-07
Comparative Study Between Mras And Kubata Observers For Induction Machine Drives Using Dtc-ann Control With Two Level Inverter
Authors : Dris Ahmed .
Abstract
In this article, we present the construction of observers of rotor flux and mechanical speed needed for robust control of the asynchronous machine. Two observers will be developed for comparison. The first is based on the technics MRAS and the second is observer of KUBOTA, with the enhanced DTC, "sensorless DTC". The validity of the proposed methods is confirmed by the simulation results. The THD (Total Harmonic Distortion) of stator current, torque ripple and stator flux ripple are determined and compared with conventional DTC control scheme using Matlab/Simulink environment
Keywords
IM ; Two-level DTC ; , Kubota observer ; MRAS observer ; THD.
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