Analysis and Control of Electromagnetic Coupling Effect of Levitation and Guidance Systems for Semi-High-Speed Maglev Train Considering Current Direction

作     者：Jeong, Jae-Hoon Ha, Chang-Wan Lim, Jaewon Choi, Jang-Young 

作者机构：Chungnam Natl Univ Dept Elect Engn Daejeon 34134 South Korea Korea Inst Machinery & Mat Dept Magnet Levitat & Linear Drive Daejeon 34103 South Korea 

出 版 物：《IEEE TRANSACTIONS ON MAGNETICS》 (IEEE Trans Magn)

年 卷 期：2017年第53卷第6期

页      面：1-4页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0702[理学-物理学] 

基　　金：Korea Research Council for Industrial Science and Technology through the Development of Core Component Technologies for Urban Maglev Project 

主　　题：Current direction guidance levitation magnetic equivalent circuit semi-high-speed maglev 

摘      要：A semi-high-speed magnetic levitation (maglev) train with a maximum speed of 200 km/h is being developed in Korea. It utilizes linear induction motors for propulsion and adopts electromagnetic suspension for levitation. For high-speed operation, guidance systems should be adopted to stabilize the train especially on curved tracks. For compatibility of the rail with previously developed urban maglev trains, the installation of the guidance electromagnet has to be restricted to be placed near the levitation electromagnet. Owing to the spatial closeness, mutual magnetic flux by the levitation and guidance electromagnets is produced at an overlapping portion of the rail. For stable control of the two systems, the coupling effects must be analyzed, because the levitation and guidance electromagnets are not operated independently. This paper aims to analyze the coupling effects by considering the magnetic field and a magnetic equivalent circuit. This paper suggests levitation and guidance systems for the semi-high-speed maglev train by considering each electromagnetic characteristic depending on the current direction.