Direct torque and flux regulation of an IPM synchronous motor drive using variable structure control approach

Zhuang Xu, M. Faz Rahman

Research output: Journal PublicationArticlepeer-review

157 Citations (Scopus)

Abstract

To enhance high performance of an interior permanent magnet synchronous motor drive, a nonlinear variable structure controller is proposed for the control of torque and stator flux linkage. The modeling and experimental results show that the torque and flux ripples have been significantly minimized. The fast responses and robustness merits of the classic direct torque control are preserved by eliminating hysteresis and the existing proportional-integral controllers of torque and flux. By replacing the open-loop flux and torque estimator with a closed-loop observer, the drive system has achieved high performance at very low speed, down to 10 rpm (0.33 Hz) with half full load.

Original languageEnglish
Pages (from-to)2487-2498
Number of pages12
JournalIEEE Transactions on Power Electronics
Volume22
Issue number6
DOIs
Publication statusPublished - Nov 2007
Externally publishedYes

Keywords

  • Direct torque control (DTC)
  • Interior permanent magnet (IPM) synchronous motors
  • Permanent magnet motors
  • Synchronous motors
  • Torque and flux ripples
  • Torque control
  • Variable structure control (VSC)
  • Variable structure systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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