Novel Predictive Stator Flux Control Techniques for PMSM drives

Shoudao Huang, Gongping Wu, Fei Rong*, Changfan Zhang, Sheng Huang, Qiuwei Wu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

In this paper, a predictive stator flux control (PSFC)algorithm for permanent magnet synchronous motor (PMSM) drives is proposed, which can eliminate the influence of flux linkage parameter perturbation and rotor position error. First, the sensitivity of conventional predictive current control (PCC) to the flux linkage parameter and rotor position is analyzed. Then, the novel composite discrete time sliding mode observer (SMO) based on stator flux state is designed, which can estimate the
flux linkage parameter perturbation, rotor position error and load torque simultaneously. Finally, a novel PSFC method is developed, which can enhance the robustness of PCC against flux linkage parameter perturbation and rotor position error by using composite discrete time SMO. Simulation and experimental results indicate that the proposed PSFC can achieve low stator current harmonics, low torque ripple and excellent steady-state performance under the flux linkage parameter perturbation and rotor position error.
Original languageEnglish
JournalI E E E Transactions on Power Electronics
Volume34
Issue number9
Pages (from-to)8916 - 8929
ISSN0885-8993
DOIs
Publication statusPublished - 2018

Keywords

  • Sliding mode observer
  • Flux linkage parameter perturbation
  • Rotor position error
  • Permanent magnet synchronous motor
  • Predictive current control

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