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ISSN:2454-4116

International Journal of New Technology and Research

Impact Factor 3.953

(An ISO 9001:2008 Certified Online Journal)
India | Germany | France | Japan

Performance Enhancement of Fuzzy Logic Duty Ratio Controller Based Direct Torque Control of Induction Motor

( Volume 3 Issue 12,December 2017 ) OPEN ACCESS
Author(s):

V.M.Venkateswara Rao, G.Chandra Sekhar, Y.P. Obulesh

Abstract:

This paper presents reduction of torque ripples in an Induction Motor with DTC by duty cycle controller. The numbers of vectors are increased beyond the available eight discrete voltage vectors are used in this paper without increasing the number of semiconductor switches in the inverter. To achieve swift response, less overshoot and precision speed control to provide to enclose torque speed characteristics, look-up table based online tuning PI controller is projected for outer speed control loop. This paper shows a new algorithm for optimized value of stator flux based on the maxim reference value of electromagnetic torque to operate in conjunction with duty ratio control. MATLAB-Simulink is used to observe the performance of proposed technique. The simulation results shows the improved results of the proposed technique compared over the existing methods.

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