Self-sensing electromagnetic levitation system taking account of ripple currents excited by PWM amplifier

Author

Matsuda, Keisuke ; Sakamoto, Takanori

Author_Institution

Kyushu Inst. of Technol., Kitakyushu, Japan

fYear

2013

fDate

22-25 April 2013

Firstpage

60

Lastpage

64

Abstract

This paper presents a linear model for self-sensing electromagnetic levitation system. We consider one degree of freedom magnetic levitation system composed of a suspended object and an electromagnet driven by a pulse-width-modulation amplifier. The proposed model makes use of the airgap information contained in the derivative of the coil current. We design a controller based on the proposed model, and show that the system performs well by using computer simulation.

Keywords

air gaps; amplifiers; control system synthesis; electric current control; magnetic levitation; pulse width modulation; PWM amplifier; airgap information; coil current; degree of freedom magnetic levitation system; model, simulation; pulse-width-modulation amplifier; ripple currents; self-sensing electromagnetic levitation system; Electromagnetics; Magnetic levitation; Mathematical model; Pulse width modulation; Robustness; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on

Conference_Location

Kitakyushu

ISSN

2164-5256

Print_ISBN

978-1-4673-1790-0

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2013.6526989

Filename

6526989