18-Sector Direct Torque Controlled Strategy with Improved Stator Flux Estimator for Induction Motor Drive

S. V. Bhangale, Rajesh Kumar, Kajal Bhangale

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

4 Citations (Scopus)

Abstract

In direct torque control (DTC) scheme, stator flux vector, and electromagnetic torque are regulated by choosing a voltage vector from a switching logic table. However, the selected voltage vector is not always the perfect one because of only the sector is considered where the flux space vector lies without considering its precise position. Voltage vector selection depends on how precisely the flux is estimated. This paper describes a modified flux estimator scheme for DTC-based induction-motor drives. The flux estimated by the improved flux estimator is used to choose the stator voltage vector in an 18-sector (DTC) flux plane. The proposed control algorithm is comparatively simple and significantly reduces the torque ripple as compared with the basic DTC. Simulation and experimental results proposed algorithm shows the competency of estimator.

Original languageEnglish
Title of host publication8th IEEE India International Conference on Power Electronics, IICPE 2018
PublisherIEEE Computer Society
ISBN (Electronic)9781538649961
DOIs
Publication statusPublished - 2 Jul 2018
Externally publishedYes
Event8th IEEE India International Conference on Power Electronics, IICPE 2018 - Jaipur, India
Duration: 13 Dec 201815 Dec 2018

Publication series

NameIndia International Conference on Power Electronics, IICPE
Volume2018-December
ISSN (Print)2160-3162
ISSN (Electronic)2160-3170

Conference

Conference8th IEEE India International Conference on Power Electronics, IICPE 2018
Country/TerritoryIndia
CityJaipur
Period13/12/1815/12/18

Keywords

  • 18-sector DTC
  • Cutoff frequency
  • Induction motor drive
  • Stator flux estimator

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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