Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2008.11b
- /
- Pages.316-320
- /
- 2008
A study on thrust and normal force by air-gap variation of a linear induction motor used for an urban railway transit
철도차량용 LIM의 공극변화에 따른 추력/수직력 특성 분석
- Yang, Won-Jin ;
-
Park, Chan-Bae
;
-
Lee, Hyung-Woo
;
-
Kwon, Sam-Young
;
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Park, Hyun-June
;
-
Won, Chung-Youn
- 양원진 (성균관대학교 전자전기컴퓨터공학과) ;
-
박찬배
(한국철도기술연구원) ;
-
이형우
(한국철도기술연구원) ;
-
권삼영
(한국철도기술연구원) ;
-
박현준
(한국철도기술연구원) ;
-
원충연
(성균관대학교 정보통신공학부)
- Published : 2008.11.13
Abstract
A light rail transit, using a linear induction motor, is generally composed with reaction plates along railroad track and the three phase primary on the vehicle. This linear induction motor is driven to keep clearance between the primary and the secondary of the ground for preventing any contact. Therefore efficiency and power factor is very low. In addition, the reaction plate installed on the ground throughout entire railway is impossible to keep uniform gap and it may cause system deterioration. In this paper, A rotary-type small-scale model of a linear induction motor for various characteristic analysis is designed. Thrust force, normal force and input current of the model by air-gap variation have been analyzed by using a Finite Element Method (FEM). The effects of air-gap variation on system performance have been considered by analysis results.
Keywords