Levitation control for a double-sided bearingless linear motor based on feedback linearization

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Abstract

This paper deals with levitation control for a double-sided bearingless linear-motor system. Analytical design rules for a state-feedback gain and a state observer are derived. To decouple the production of forces in thrust- and normal-force directions, feedback-linearizing control based on the magnetic model is proposed. The proposed control design is tested in an experimental system consisting of four individually supplied linear-motor units in a double-sided configuration. The results from time-domain simulations and experimental tests suggest that the proposed control design can successfully provide smooth transition to contactless operation and retain the stable levitation during the movement in the thrust-force direction.

Details

Original languageEnglish
Title of host publicationProceedings of the 11th IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publication statusPublished - 29 Sep 2019
MoE publication typeA4 Article in a conference publication
EventIEEE Energy Conversion Congress and Exposition - Baltimore, United States
Duration: 29 Sep 20193 Oct 2019
Conference number: 11

Publication series

NameIEEE Energy Conversion Congress and Exposition
PublisherIEEE
ISSN (Print)2329-3721
ISSN (Electronic)2329-3748

Conference

ConferenceIEEE Energy Conversion Congress and Exposition
Abbreviated titleECCE
CountryUnited States
CityBaltimore
Period29/09/201903/10/2019

    Research areas

  • Bearingless, Control, Levitation, Linear motor

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