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Research Article |

A New Closed Loop Constant v/f Control of Induction Motor with Torque Control Based on DPWM

Author(s): E. Nandhini1* and A. Sivaprakasam2

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 11, Issue 3

Publisher : FOREX Publication

Published : 10 July 2023

e-ISSN : 2347-470X

Page(s) : 652-657

DOI: https://doi.org/10.37391/ijeer.110302

Abstract

An easy sensor-less scalar control algorithm is described in this article as a method for controlling the speed of an induction motor. For developing a closed-loop v/f control of the induction motor drive, a torque controller with PI is implemented. The torque command was estimated by utilizing the voltage command, the feedback current, and a torque estimator. Additionally, a torque reference was provided for the Torque PI controller. Considering this, the purpose of this work is to investigate the closed-loop PI-based torque control of an induction motor drive that applies DPWM. In addition to this, it provides a description of a PI-based closed-loop torque control that works in conjunction with v/f control and tries to discover the most effective method for driving an induction motor based on an examination of Total Harmonic Distortion (THD) and torque ripple. To evaluate the performance studies of open- and closed-loop strategies with DPWM techniques for induction motor driving, the MATLAB/Simulink environment has been deployed. Experimental results have been validated.

Keywords: Discontinuous PWM, Voltage source inverter, Variable frequency drives, two level inverter, SVPWM.




E. Nandhini*, Research Scholar, College of Engineering Guindy, Anna University, Chennai, India ; Email: nandhini3189@yahoo.com

A. Sivaprakasam, Associate Professor, College of Engineering Guindy, Anna University, Chennai

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E. Nandhini and A. Sivaprakasam (2023), A New Closed Loop Constant v/f Control of Induction Motor with Torque Control Based on DPWM. IJEER 11(3), 652-657. DOI: 10.37391/ijeer.110302.