Levitation control for a double-sided bearingless linear motor based on feedback linearization
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A4 Artikkeli konferenssijulkaisussa
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Authors
Saarakkala, Seppo E.
Sokolov, Maksim
Hosseinzadeh, Reza
Hinkkanen, Marko
Date
2019-09-29
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
4923-4930
4923-4930
Series
Proceedings of the 11th IEEE Energy Conversion Congress and Exposition, ECCE 2019, IEEE Energy Conversion Congress and Exposition
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.Description
Keywords
Bearingless, Control, Levitation, Linear motor
Other note
Citation
Saarakkala, S E, Sokolov, M, Hosseinzadeh, R & Hinkkanen, M 2019, Levitation control for a double-sided bearingless linear motor based on feedback linearization . in Proceedings of the 11th IEEE Energy Conversion Congress and Exposition, ECCE 2019 . IEEE Energy Conversion Congress and Exposition, IEEE, pp. 4923-4930, IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, United States, 29/09/2019 . https://doi.org/10.1109/ECCE.2019.8913219