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Sensors 2015, 15(12), 31781-31793; doi:10.3390/s151229879

GSA-Tuning IPD Control of a Field-Sensed Magnetic Suspension System

1
Department of Electrical Engineering, Kun Shan University, 195 Kunda Road, Yongkang District, Tainan City 710, Taiwan
2
Department of Electrical Engineering, Southern Taiwan University of Science and Technology, 1 Nan Ti Street, Yongkang District, Tainan City 710, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Andreas Hütten
Received: 24 August 2015 / Revised: 7 December 2015 / Accepted: 11 December 2015 / Published: 16 December 2015
(This article belongs to the Special Issue Magnetic Sensor Device-Part 1)
View Full-Text   |   Download PDF [4221 KB, uploaded 16 December 2015]   |  

Abstract

The purpose of this paper is to propose a GSA-tuning IPD control technique for magnetic suspension systems. An educational demonstration on a magnetic-field sensed magnetic suspension system is examined for effectiveness. For the magnetic-field sensed magnetic suspension system (FSMSS), the current transducer is employed for measuring the electromagnetic coil current, and a Hall effect device is used for detecting the position of the suspended object. To achieve optimal performance, the gravitational search algorithm (GSA) is adopted for tuning the integral-proportional-derivative (IPD) controller. The IPD control includes the specified PD controller and an integrator. The specified PD control is employed for stabilizing the inherently unstable FSMSS, whereas the integral control is utilized for eliminating the steady-state error. The GSA can tune the IPD control parameters to enable optimal FSMSS performance. We achieved excellent results from the simulations and hands-on experiments for the proposed control strategies and structures. View Full-Text
Keywords: current transducer; magnetic field sensor; magnetic suspension system; gravitational search algorithm; IPD control current transducer; magnetic field sensor; magnetic suspension system; gravitational search algorithm; IPD control
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).

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MDPI and ACS Style

Li, J.-H.; Chiou, J.-S. GSA-Tuning IPD Control of a Field-Sensed Magnetic Suspension System. Sensors 2015, 15, 31781-31793.

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