Next Article in Journal
Noncontact Guide System for Traveling Continuous Steel Plate Using Electromagnet and Supplement of Permanent Magnets for Suppressing Vibration
Previous Article in Journal
Modelling of a Partially Loaded Road Tanker during a Braking-in-a-Turn Maneuver
Previous Article in Special Issue
Lateral Vibration Suppression by Varying Stiffness Control in a Vertically Active Magnetic Suspension System
Article Menu

Export Article

Open AccessArticle
Actuators 2018, 7(3), 46; https://doi.org/10.3390/act7030046

Offset-Free Model Predictive Control for Active Magnetic Bearing Systems

Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
*
Author to whom correspondence should be addressed.
Received: 9 July 2018 / Revised: 1 August 2018 / Accepted: 6 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Magnetic Bearing Actuators)
Full-Text   |   PDF [1762 KB, uploaded 8 August 2018]   |  

Abstract

This paper presents the study of linear Offset-Free Model Predictive Control (OF-MPC) for an Active Magnetic Bearing (AMB) application. The method exploits the advantages of classical MPC in terms of stability and control performance and, at the same time, overcomes the effects of the plant-model mismatch on reference tracking. The proposed approach is based on a disturbance observer with an augmented plant model including an input disturbance estimation. Besides the abovementioned advantages, this architecture allows a real-time estimation of low-frequency disturbance, such as slow load variations. This property can be of great interest for a variety of AMB systems, particularly where the knowledge of the external load is important to regulate the behavior of the controlled plant. To this end, the paper describes the modeling and design of the OF-MPC architecture and its experimental validation for a one degree of freedom AMB system. The effectiveness of the method is demonstrated in terms of the reference tracking performance, cancellation of plant-model mismatch effects, and low-frequency disturbance estimation. View Full-Text
Keywords: predictive control; magnetic levitation; electromagnetic actuators predictive control; magnetic levitation; electromagnetic actuators
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Bonfitto, A.; Castellanos Molina, L.M.; Tonoli, A.; Amati, N. Offset-Free Model Predictive Control for Active Magnetic Bearing Systems. Actuators 2018, 7, 46.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Actuators EISSN 2076-0825 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top