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Thrust ripple compensation of PMLSM based on second-order sliding mode observer with super-twisting algorithm

  • Harbin Institute of Technology

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

Abstract

This paper presents a novel thrust ripple estimation method for PMLSM based on second-order sliding-mode disturbance observer. The super-twisting algorithm (STA) with no sliding-mode surface derivative term is superior in reducing chattering while both retaining strong robustness of conventional sliding-mode, thus it is utilized to design the observer. Then, the equivalent q-axes current according to observed thrust ripple are configured as feedforward compensation term to suppress the force ripple and obtain smooth velocity response within the velocity and current double-closed-loop control system. Coincident observation results with the measured one and obvious velocity ripple reduction verifies the validity and effectiveness of the proposed method on an air-bearing PMLSM test stage.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3698-3703
Number of pages6
ISBN (Electronic)9781538611272
DOIs
StatePublished - 15 Dec 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Publication series

NameProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
Volume2017-January

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/171/11/17

Keywords

  • Dsiturbance observer
  • permanent magnet linear synchronous machines (PMLSMs)
  • sliding mode
  • super-twisting algorithm (STA)
  • thrust ripple

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