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Title: A new viewpoint of end effect of linear induction motor from secondary side in ladder type model

Abstract

In Japan, the subway trains driven by linear induction motors (LIMs) have been used in metropolitans of Tokyo and Osaka. As a new viewpoint, the physical phenomenon of end effect in ladder type linear induction motor (LIM) is observed from secondary side by making use of the structural feature. The phenomena in the ladder type and the sheet type LIM are the same fundamentally. The analytical method for the study is the special two-dimensional electromagnetic analysis, in which the current in each conducting bar is determined considering with time harmonics of secondary current. A new factor t{sub p}/t{sub s} is proposed to present the degree of end effect, in where t{sub p} is the passing duration of primary core at a secondary point and t{sub s} the half-period of slip frequency. The factor will be useful for the design grasping the essential of end effect of LIM.

Authors:
;
Publication Date:
Research Org.:
Kyushu Univ., Fukuoka (JP)
OSTI Identifier:
20000836
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 33 ADVANCED PROPULSION SYSTEMS; ELECTRIC RAILWAYS; MASS TRANSIT SYSTEMS; ELECTRIC MOTORS; END EFFECTS; ELECTROMAGNETISM; DESIGN; MATHEMATICAL MODELS

Citation Formats

Fujii, N., and Harada, T. A new viewpoint of end effect of linear induction motor from secondary side in ladder type model. United States: N. p., 1999. Web. doi:10.1109/20.800748.
Fujii, N., & Harada, T. A new viewpoint of end effect of linear induction motor from secondary side in ladder type model. United States. doi:10.1109/20.800748.
Fujii, N., and Harada, T. Wed . "A new viewpoint of end effect of linear induction motor from secondary side in ladder type model". United States. doi:10.1109/20.800748.
@article{osti_20000836,
title = {A new viewpoint of end effect of linear induction motor from secondary side in ladder type model},
author = {Fujii, N. and Harada, T.},
abstractNote = {In Japan, the subway trains driven by linear induction motors (LIMs) have been used in metropolitans of Tokyo and Osaka. As a new viewpoint, the physical phenomenon of end effect in ladder type linear induction motor (LIM) is observed from secondary side by making use of the structural feature. The phenomena in the ladder type and the sheet type LIM are the same fundamentally. The analytical method for the study is the special two-dimensional electromagnetic analysis, in which the current in each conducting bar is determined considering with time harmonics of secondary current. A new factor t{sub p}/t{sub s} is proposed to present the degree of end effect, in where t{sub p} is the passing duration of primary core at a secondary point and t{sub s} the half-period of slip frequency. The factor will be useful for the design grasping the essential of end effect of LIM.},
doi = {10.1109/20.800748},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}