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Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking

The magnetic levitation system has been considered as a promising actuator in micromachining areas of study. In order to improve the tracking performance and disturbance rejection of the magnetically levitated rotary table, an iterative learning PID control strategy with disturbance compensation is...

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Detalles Bibliográficos
Autores principales: Xu, Fengqiu, Zhang, Kaiyang, Xu, Xianze
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185631/
https://www.ncbi.nlm.nih.gov/pubmed/35684891
http://dx.doi.org/10.3390/s22114270
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author Xu, Fengqiu
Zhang, Kaiyang
Xu, Xianze
author_facet Xu, Fengqiu
Zhang, Kaiyang
Xu, Xianze
author_sort Xu, Fengqiu
collection PubMed
description The magnetic levitation system has been considered as a promising actuator in micromachining areas of study. In order to improve the tracking performance and disturbance rejection of the magnetically levitated rotary table, an iterative learning PID control strategy with disturbance compensation is proposed. The estimated disturbance compensates for the control signals to enhance the active disturbance rejection ability. The iterative learning control is used as a feed-forward unit to further reduce the trajectory tracking error. The convergence and stability of the iterative learning PID with disturbance compensation are analysed. A series of comparative experiments are carried out on the in-house, custom-made, magnetically levitated rotary table, and the experimental results highlight the superiority of the proposed control strategy. The iterative learning PID with disturbance compensation enables the magnetically levitated rotary table to realize good tracking performance with complex external disturbance. The proposed control strategy strengthens the applicability of magnetically levitated systems in the mechanism manufacturing area.
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spelling pubmed-91856312022-06-11 Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking Xu, Fengqiu Zhang, Kaiyang Xu, Xianze Sensors (Basel) Article The magnetic levitation system has been considered as a promising actuator in micromachining areas of study. In order to improve the tracking performance and disturbance rejection of the magnetically levitated rotary table, an iterative learning PID control strategy with disturbance compensation is proposed. The estimated disturbance compensates for the control signals to enhance the active disturbance rejection ability. The iterative learning control is used as a feed-forward unit to further reduce the trajectory tracking error. The convergence and stability of the iterative learning PID with disturbance compensation are analysed. A series of comparative experiments are carried out on the in-house, custom-made, magnetically levitated rotary table, and the experimental results highlight the superiority of the proposed control strategy. The iterative learning PID with disturbance compensation enables the magnetically levitated rotary table to realize good tracking performance with complex external disturbance. The proposed control strategy strengthens the applicability of magnetically levitated systems in the mechanism manufacturing area. MDPI 2022-06-03 /pmc/articles/PMC9185631/ /pubmed/35684891 http://dx.doi.org/10.3390/s22114270 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xu, Fengqiu
Zhang, Kaiyang
Xu, Xianze
Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title_full Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title_fullStr Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title_full_unstemmed Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title_short Development of Magnetically Levitated Rotary Table for Repetitive Trajectory Tracking
title_sort development of magnetically levitated rotary table for repetitive trajectory tracking
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185631/
https://www.ncbi.nlm.nih.gov/pubmed/35684891
http://dx.doi.org/10.3390/s22114270
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