Robust predictive current control of induction motors based on linear extended state observer

Yongchang Zhang, Xing Wang, Haitao Yang, Boyue Zhang, Jose Rodriguez

Research output: Contribution to journalArticlepeer-review

Abstract

Model predictive current control can achieve fast dynamic response and satisfactory steady-state performance for induction motor (IM) drives. However, many motor parameters are required to implement the control algorithm. Consequently, if the motor parameters used in the controller are not accurate, the performance may deteriorate. In this paper, a new robust predictive current control is proposed to improve robustness against parameter mismatches. The proposed method employs an ultra-local model to replace the mathematical model of the IM. Additionally, to improve the control performance, a linear extended state observer is developed for disturbance estimation. Experimental tests confirm that satisfactory tracking performance can still be obtained although the motor parameters may not be accurately set in the controller.

Original languageEnglish
Article number9397420
Pages (from-to)94-105
Number of pages12
JournalChinese Journal of Electrical Engineering
Volume7
Issue number1
DOIs
Publication statusPublished - Mar 2021

Keywords

  • current control
  • Induction motor drives
  • observers
  • predictive control
  • robustness

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Energy Engineering and Power Technology

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