An improved stator flux estimation for a variable structure direct torque controlled IPM synchronous motor drive using a sliding observer

Z. Xu, M. F. Rahman

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

1 Citation (Scopus)

Abstract

This paper presents improvements of the stator flux estimation for a variable structure direct torque controlled (DTC) interior permanent magnet (IPM) synchronous motor drive. A variable structure observer is proposed to estimate the stator flux linkage based on the IPM motor current model. Compared to open-loop estimator, the observer improves the performance of the IPM motor drive. The experimental results demonstrate that the proposed observer is able to deliver more accurate estimation than open-loop estimator both in the steady state and during transients. Performance of encoder-less operation at very low speed is enhanced significantly.

Original languageEnglish
Title of host publicationConference Record of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Pages2484-2490
Number of pages7
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting - Kowloon, Hong Kong, China
Duration: 2 Oct 20056 Oct 2005

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume4
ISSN (Print)0197-2618

Conference

Conference2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Country/TerritoryChina
CityKowloon, Hong Kong
Period2/10/056/10/05

Keywords

  • DTC
  • IPM
  • Observer
  • Stator flux
  • SVM

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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