An improved direct torque control of induction motor with modified sliding mode control approach

Tanvir Ahammad, Abdul R. Beig, Khalifa Al-Hosani

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

This work presents an improved direct torque control (DTC) of induction motor using modified sliding mode control technique for flux and torque control. The DTC gives fast dynamic response and robust c/ontrol in ac drives. The conventional DTC method using hysteresis regulator has considerable flux and torque ripples at steady-state operation and also the switching frequency varies on a wide range. The proposed DTC technique based on sliding mode control (SMC) reduces flux, current, and torque ripples. It also narrows down the switching frequency variations in induction motor control. Two different sliding surfaces such as flux and torque sliding surfaces are used to control them. The error between reference and actual values are driven to respective sliding surfaces where the error is enforced to zero. A switching table based on space vectors of the voltage source inverter (VSI) is used to select the proper switching of the inverter. The performance of the proposed control technique is compared with that of conventional DTC. Simulation results for the proposed control method and conventional DTC control technique are presented.

Original languageBritish English
Title of host publicationProceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
Pages166-171
Number of pages6
DOIs
StatePublished - 2013
Event2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013 - Chicago, IL, United States
Duration: 12 May 201315 May 2013

Publication series

NameProceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013

Conference

Conference2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
Country/TerritoryUnited States
CityChicago, IL
Period12/05/1315/05/13

Keywords

  • Induction Motor
  • Sliding Mode Control
  • Space Vector PWM
  • Variable Speed Drives

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