Eddy-current losses in a tubular linear induction motor

Author

Nasar, S.A. ; Xiong, G.Y. ; Fu, Z.X.

Author_Institution

Dept. of Electr. Eng., Kentucky Univ., Lexington, KY, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1437

Lastpage

1445

Abstract

Primary core and solid secondary eddy-current losses are determined in the electromagnetic topology of a tubular linear induction motor (TLIM). The nonlinear B-H characteristic, hysteresis and skin effect are considered in deriving formulas for eddy-current losses. A means to reduce these losses in the primary core laminations is presented. In addition, techniques for parameter determination of the equivalent circuit and performance predictions are developed by extending the theory presented in the paper. Experimental results show good agreement with calculated values

Keywords

eddy current losses; equivalent circuits; induction motors; laminations; linear motors; machine theory; magnetic cores; magnetic hysteresis; skin effect; eddy-current losses; electromagnetic topology; equivalent circuit; hysteresis; losses reduction; nonlinear B-H characteristic; parameter determination; primary core eddy-current losses; primary core laminations; skin effect; solid secondary eddy-current losses; tubular linear induction motor; Circuit topology; Electromagnetic induction; Equivalent circuits; Induction motors; Lamination; Magnetic hysteresis; Skin effect; Solids; Stator cores; Teeth;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305544

Filename

305544