Dynamic and Experimental Performance of Linear-Switched Reluctance Machine With Inductance Variation According to Airgap Length

Author

Park, Ji-Hoon ; Jang, Seok-Myeong ; Choi, Jang-Young ; Sung, So-Young ; Kim, Il-Jung

Author_Institution

Dept. of Electr. Eng., Chungnam Nat. Univ., Daejeon, South Korea

Volume

46

Issue

6

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

2334

Lastpage

2337

Abstract

This paper deals with the dynamic and experimental performance of a linear-switched reluctance machine with inductance variation according to airgap length. First, analytical solutions for flux density due to mover winding currents are derived for the case when the mover is located at an aligned and unaligned position. And then, using the inductance at an aligned and unaligned position obtained from 2-D analytical solutions and Fourier series expansion proposed in this paper, we predict the inductance profile of the linear-switched reluctance machine (LSRM) analytically. Finally, with the experiment of manufactured LSRM, the validity of the characteristic equations is demonstrated, and the operating experiment is performed by manufacturing the operating circuit for the experiment of the operating characteristic according to the airgap length.

Keywords

Fourier series; air gaps; electric current; inductance; linear machines; machine windings; reluctance machines; Fourier series expansion; LSRM; airgap length; aligned position; flux density; inductance variation; linear switched reluctance machine; mover winding currents; unaligned position; Analytical models; Circuits; Equations; Inductance; Levitation; Manufacturing; Performance analysis; Propulsion; Reluctance machines; Voltage; Airgap length; dynamic; experimental performance; inductance variation; linear-switched reluctance machine (LSRM);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2010.2043927

Filename

5467540