Sensorless Direct Torque Control of PMSM using Unsected Kalman Filter

Zhen Chen*, Liang Wang, Xiangdong Liu

*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

This paper considers the sensorless direct torque control of a Permanent Magnet Synchronous Motor (PMSM) by using Unscented Kalman Filtering (UKF) to estimate the flux-linkage, the rotor speed and the position. UKF adapts the unscented transformation (UT) algorithm and symmetrical sampling strategy. The UKF algorithm represents a serious strongpoint to the Extended Kalman Filter (EKF) for the highly nonlinear systems. UKF ensures high estimation precision and simple calculation. The sensorless Direct Torque Control (DTC) for PMSM is designed in this paper. The estimating errors when using UKF and EKF are compared. The effectiveness of this method is verified through several simulations. The DTC based on UKF for PMSM has good speed and torque response performances. This method has rapid astringency of estimated error.

Original languageEnglish
Title of host publicationProceedings of the 18th IFAC World Congress
PublisherIFAC Secretariat
Pages4380-4385
Number of pages6
Edition1 PART 1
ISBN (Print)9783902661937
DOIs
Publication statusPublished - 2011

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Number1 PART 1
Volume44
ISSN (Print)1474-6670

Keywords

  • Direct Torque Control
  • Flux Linkage Estimation
  • PMSM
  • Sensorless
  • Unscented Kalman Filtering

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