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

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
Conference article in proceedings
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Date
2019-09-29
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
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