Torque Ripple Minimization in Direct Torque Control of Induction Motor using SVPWM Technique

Authors

  • H. B. Jani Electrical Engineering Department,Dr.J.N.M.Government Polytechnic,Amreli
  • S.U.Dalwani Electrical Engineering Department,Government Polytechnic,Dahod
  • S.J.Patel Electrical Engineering Department,A.V.P.T.I.,Rajkot

Keywords:

CDTC,SVPWM, Hysteresis control, Space vector, Torque ripple

Abstract

The conventional DTC (CDTC) drive contains a pair of hysteresis comparators, a flux and torque estimator and a voltage
vector selection table. The movement of stator flux vector during the changes of cyclic sectors is responsible for creating notable edge
oscillations of electromagnetic torque. Another great issue is the implementation of hysteresis controllers which requires a high
sampling frequency.
This paper is aimed to analyze DTC principles, the strategies and the problems related to its implementation and the possible
improvements using Space Vector Pulse Width Modulation (SVPWM). In SVPWM for each sampling period the switching instants of
different space vectors are determined to reduce torque ripple. A comparison study between SVPWM-DTC and CDTC is carried out to
apply switching select voltage vector. The theoretical foundation principle, the numerical simulation procedure and the performances
of both methods are also presented.

Published

2015-04-25

How to Cite

H. B. Jani, S.U.Dalwani, & S.J.Patel. (2015). Torque Ripple Minimization in Direct Torque Control of Induction Motor using SVPWM Technique. International Journal of Advance Engineering and Research Development (IJAERD), 2(4), 128–135. Retrieved from https://ijaerd.com/index.php/IJAERD/article/view/601