Basic Study on Magnetic Suspension by Using the Control of Mutual Inductance

Author

Mizuno, Takeshi ; Itani, Yusuke ; Ishino, Yuji ; Takasaki, Masaya

Author_Institution

Saitama Univ.

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

3934

Lastpage

3938

Abstract

This paper studies a noble magnetic suspension whose suspension force is controlled with a variable mutual inductance mechanism. The suspension system has a transformer whose primary coil is energized by an AC power supply. The secondary coil is connected to the coil of an electromagnet for producing suspension force. The variable mutual inductance mechanism changes the coupling factor between the primary and secondary coils according to command signal. Since the voltage induced in the secondary coil is a function of the coupling factor, the suspension force can be adjusted with the mechanism. An experimental apparatus for single-axis magnetic suspension was fabricated. The controllability of suspension force was experimentally confirmed with the developed apparatus

Keywords

coils; electromagnets; force control; inductance; magnetic fluids; power supplies to apparatus; transformers; AC power supply; electromagnet; magnetic suspension; mutual inductance control; primary coil; secondary coil; suspension force control; transformer; variable mutual inductance mechanism; Coils; Controllability; Electric variables control; Electromagnets; Force control; Inductance; Magnetic levitation; Magnetic variables control; Mutual coupling; Power supplies;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Conference_Location

Paris

ISSN

1553-572X

Print_ISBN

1-4244-0390-1

Type

conf

DOI

10.1109/IECON.2006.347830

Filename

4153268