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Decoupled dq-axis Current Control for PMLSM based on Variable-Gain Adaptive Internal Model

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

The cross-coupled {d-} and q-axis current response can deteriorate the current control characteristic especially under high-velocity and high-dynamics operation in air-bearing permanent magnet linear synchronous machine (PMLSM) with traditional field-oriented control. This paper addresses the coupled {d-} and q-axis current response with proportional-integral (PI) controller based on the mathematical model including parameter uncertainties and unmodeled dynamics, and then the principle and comparative decoupled capability utilizing voltage feedforward decoupling control (VFDC) and internal model control (IMC) are given. Considering the decoupling performance deterioration due to the parameters mismatch, a simple variable-gain adaptation law based on the Lyapunov function is presented to improve the parameter robustness. Experimental results are given to demonstrate its effectiveness for decoupled {d-} and q-axis current control.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3355-3361
Number of pages7
ISBN (Electronic)9781479973118
DOIs
StatePublished - 3 Dec 2018
Externally publishedYes
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period23/09/1827/09/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Adaptive law
  • Cross coupling
  • Current decoupling
  • Internal model
  • Permanent magnet linear sunchoronous motor (PMLSM)

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