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Comparison of drive performance of PM synchronous machine fed by inverters with different PWM strategies in constant torque and constant power regions

  • Hesong Liu*
  • , Z. Q. Zhu
  • , Essam Mohamed
  • , Yongling Fu
  • , Xiaoye Qi
  • *Corresponding author for this work
  • University of Sheffield
  • Beihang University

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

Abstract

Constant torque and constant power operation performance of permanent-magnet synchronous motors, particularly in the constant power region, not only depends on the flux-weakening control schemes but also relies on the PWM strategies. In this paper, the hysteresis control and SVPWM (including linear and over-modulation) are considered due to their popularity. An improved current regulated delta modulation (CRDM) is developed to improve the performance in both constant torque and constant power regions. The analyses, verified experimentally, show that the improved CRDM strategy demonstrates an improved torque capability which is nearly the same as SVPWM in the constant torque region, and an enlarged speed range compared with hysteresis control.

Original languageEnglish
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Pages1334-1339
Number of pages6
DOIs
StatePublished - 2011
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 - Niagara Falls, ON, Canada
Duration: 15 May 201118 May 2011

Publication series

Name2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011

Conference

Conference2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Country/TerritoryCanada
CityNiagara Falls, ON
Period15/05/1118/05/11

Keywords

  • Hysteresis control
  • PMSM
  • improved CRDM
  • linear SVPWM
  • over-modulation
  • torque-speed characteristics

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