Torque Ripple Suppression for Open-End Winding Permanent-Magnet Synchronous Machine Drives with Predictive Current Control

Xin Yuan, Chengning Zhang, Shuo Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

58 Citations (Scopus)

Abstract

In order to suppress the torque ripple of an open-end winding permanent-magnet synchronous machine (OEW-PMSM), a q-axis current injection method is typically employed but the disturbances caused by the third flux linkage parameter mismatch can augment the torque ripple. To solve this problem, in this paper, first, a zero-sequence current (ZSC) and zero-sequence back-EMF observer (ZCBO) are proposed based on an adaptive sliding mode control, which is able to simultaneously estimate ZSC and zero-sequence back EMF under varying conditions. Based on this ZCBO, the estimated ZSC and zero-sequence back EMF could compensate for the one-step control delay and suppress the aforementioned disturbances. Second, although central hexagon modulation is employed in the predictive current control (PCC) scheme, zero-sequence voltage (ZSV) still exists in the zero-sequence path due to the dead time of the inverter, affecting the predictive accuracy of the ZCBO. To accurately establish the ZCBO, the ZSV caused by the dead time of the inverter is considered in the ZCBO. Finally, a comparative study of two types of methods is presented, and simulations established by MATLAB software and experimental confirmations are carried out to verify the effectiveness of the proposed PCC scheme in this paper.

Original languageEnglish
Article number8678687
Pages (from-to)1771-1781
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Volume67
Issue number3
DOIs
Publication statusPublished - Mar 2020
Externally publishedYes

Keywords

  • Open-end winding permanent-magnet synchronous machine (OEW-PMSM)
  • predictive current control (PCC)
  • torque ripple suppression

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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