Next Article in Journal
Piezoelectric Vibration-Based Energy Harvesting Enhancement Exploiting Nonsmoothness
Next Article in Special Issue
An Active Vehicle Suspension Control Approach with Electromagnetic and Hydraulic Actuators
Previous Article in Journal
The Trade-Off between the Controller Effort and Control Quality on Example of an Electro-Pneumatic Final Control Element
Previous Article in Special Issue
Analysis of a Shaftless Semi-Hard Magnetic Material Flywheel on Radial Hysteresis Self-Bearing Drives
Article Menu

Export Article

Open AccessArticle

Stabilization of Magnetic Suspension System by Using Only a First-Order Reset Element without a Derivative Element

Department of Mechanical Engineering, Saitama University, Shimo okubo 255, Sakura-ku, Saitama 338-8570, Japan
*
Author to whom correspondence should be addressed.
Actuators 2019, 8(1), 24; https://doi.org/10.3390/act8010024
Received: 31 January 2019 / Revised: 28 February 2019 / Accepted: 6 March 2019 / Published: 9 March 2019
(This article belongs to the Special Issue Magnetic Bearing Actuators)
  |  
PDF [11833 KB, uploaded 9 March 2019]
  |  

Abstract

The stabilization of a magnetic suspension system is achieved by using a low-pass filter (LPF) with a nonlinear integrator without any other element. A proportional-derivative (PD) control is commonly used as the simplest method of stabilizing a magnetic suspension system. Meanwhile, a first-order reset element (FORE) was applied to improve transient characteristics. The original FORE was a first-order LPF with a nonlinear reset integrator element. A magnetic suspension system cannot be stabilized by a linear LPF, nor the original FORE. In this work, the reset conditions of the FORE were modified for magnetic suspension. This modified FORE succeeded in stabilizing a magnetic suspension system. The efficacy of the modified FORE was demonstrated by simulations and experiments. A single degree of freedom magnetic suspension system was used in the experiment. View Full-Text
Keywords: magnetic suspension; nonlinear controller; reset control; Clegg’s integrator; first-order reset element magnetic suspension; nonlinear controller; reset control; Clegg’s integrator; first-order reset element
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

Ishino, Y.; Mizuno, T.; Takasaki, M.; Yamaguchi, D. Stabilization of Magnetic Suspension System by Using Only a First-Order Reset Element without a Derivative Element. Actuators 2019, 8, 24.

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