Abstract

This paper presents a comparative study of drive dynamics of a Vector Controlled Induction Motor Drive (VCIMD) by varying the Speed Controller logic to introduce accuracy and retain simplicity. The analysis is carried out in MATLAB environment using Sim Power System (SPS) and Simulink toolboxes in Discrete Time Frame (DTF) for a fixed switching frequency. The strategy of indirect vector Control is adopted for Current Controlled (CC) Voltage Source Inverter (VSI) fed squirrel cage induction motor. Simulation of the drive response under various operating conditions such as starting, reversal and load perturbation respectively are analysed. Effects of variation in speed controller logic on the dynamic response of the VCIMD are compared from application point of view.

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