Characteristics Investigation of Single-Sided Ironless PMLSM Based on Halbach Array for Medium-Speed Maglev Train
作者机构：Key Laboratory of Power Electronics and Electric DriveInstitute of Electrical EngineeringChinese Academy of SciencesBeijing 100190China
出 版 物：《CES Transactions on Electrical Machines and Systems》 (中国电工技术学会电机与系统学报（英文）)
年 卷 期：2017年第1卷第4期
页 面：375-382页
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金：This work was supported in part by the National Key R&D Program of China under Grant 2017YFB1201003
主 题：Fore characteristics Halbach array medium-speed Maglev Single-sided ironless PMLSM.
摘 要：This paper investigates characteristics of ironless permanent magnet linear synchronous motor(PMLSM)based on Halbach array used for medium-speed(200km/h)maglev *** primary ironless coil is laid in the middle of track and the Halbach permanent magnet array is attached to the bottom of each bogie as a source of traction,U-shape electromagnets at the both sides of the train for *** dimensional analytical model of single-sided ironless PMLSM based on Halbach array is established,using linear overlay method,the no-load air gap magnetic field is calculated firstly,winding current density distribution is obtained for calculating the characteristics of thrust and normal force against power angle,including force characteristics with equal and unequal pole pitch,the influence of steel sleeper,***,the mathematical model for this type motor is built by 3D finite element method,the traction characteristics of medium-speed maglev under maximum speed 200km/h are *** characteristics of this type motor are satisfactory owing to there is no detent force in the motor and thrust force reach maximum meanwhile normal force can be *** method is verified by comparing finite element results,experimental result on a 200kW type motor further validates the accuracy of calculation and some important conclusions are obtained.
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