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양원진(Yang Won-Jin),박찬배(Park Chan-Bae),이형우(Lee Hyung-Woo),권삼영(Kwon Sam-Young),박현준(Park Hyun-June),원충연(Won Chung-Yeun) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
A linear induction motor for urban railway transit is accompanied with the end-effect and large air-gap comparing with a rotary induction motor. These cause amount of difference between simulation results and experiments. In order to figure out the difference, experiments based on a real-scale test bed are indispensable, however building a test-line and a test vehicle is so difficult that authors are going to make a small-scale model and simulate it for comparison. In this paper, A rotary-type small-scale model of a linear induction motor is designed. Thrust and normal force of the model have been analyzed with the variation of frequency and speed by using a Finite Element Method(FEM).
철도차량용 LIM의 공극변화에 따른 추력/수직력 특성 분석
양원진(Yang Won-Jin),박찬배(Park Chan-Bae),이형우(Lee Hyung-Woo),권삼영(Kwon Sam-Young),박현준(Park Hyun-June),원충연(Won Chung-Youn) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
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.
양원진(Won-Jin Yang),박찬배(Chan-Bae Park),이형우(Hyung-Woo Lee),이병송(Byung-Song Lee),원충연(Chung-Yuen Won) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
Recently, the demand of a Linear Induction Motor (LIM) in the world increases as it takes increasing interest in a light rail transit considering traffic congestion and short station spacing. LIM applied for the light rail transit makes use of electromagnetic force instead of adhesion driving method of the rotary induction motor.