驱动型式对超高速磁浮动子动力学响应的影响  

Influence of drive types on dynamical responses of movers in ultra-high-speed maglev

作　　者：陈显发 张敏[1] 林远扬 马卫华[1] 罗世辉[1] CHEN Xianfa;ZHANG Min;LIN Yuanyang;MA Weihua;LUO Shihui(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu,Sichuan 610031,China)

机构地区：[1]西南交通大学轨道交通运载系统全国重点实验室,四川成都610031

出　　处：《机车电传动》2023年第6期11-19,共9页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(52102442);中央高校科技创新项目(2682022CX060);中国铁建股份有限公司科研课题资助项目(ZTCF-2023-1)。

摘　　要：文章在分析直线感应电机动子和永磁同步电机动子结构和动力学特性基础上,运用多体动力学软件,建立了对应上述2种驱动型式的超高速(1 000 km/h)电磁推进装置动子动力学模型,分析了“起动-惰行-制动”状态下动子的横向、垂向、侧滚、摇头、点头运动的变化规律。分析结果表明,感应式动子所受的法向力有利于动子横向自动对中,并避免横向冲击,同时抑制动子的侧滚和摇头运动;而永磁式动子所受的电机法向力在动子偏移时仍指向偏移的一侧,使得动子贴靠导轨运行,承受横向不平顺冲击,其侧滚和摇头运动无法收敛。感应式动子由于承受导轨垂向不平顺激励,其垂向振动和冲击力较大;永磁式动子所受电机力的垂向分力能起到一定的减振作用。运行状态会显著影响2种动子的垂向响应与点头运动,2种动子的最大垂向位移、加速度和冲击力均出现在制动的时刻。Based on the analysis on structural and dynamical characteristics of movers in linear induction motors and permanent magnet synchronous motors,this paper explored the change rules of mover motions of swaying,bouncing,rolling,yawing and pitching in the starting,coasting,and braking states,by developing the dynamical models with the multi-body dynamics simulation software for ultra-high-speed(1000 km/h)electromagnetic propulsion devices respectively in the above two drive types.The final results show that the normal force applied on the induction mover facilitates automatic lateral alignment of the mover and resistance to lateral impact,while inhibiting rolling and yawing of the mover.In the scenario of the permanent magnet mover,the normal force from the motor aligns with the direction of mover deviation.Consequently,the mover moves close to the guideway under the impact of lateral irregularity without restraining rolling and yawing effects.Due to the vertical irregularity of the guideway,the induction motor mover experienced notable vertical vibration and impact,while the vertical component force applied by the motor on the permanent magnet mover mitigates vibration to some extent.This paper concludes that running states significantly affect the vertical response and pitch motion of the two types of movers,and the maximum vertical displacement,acceleration,and impact force all occur during braking for both.

关 键 词：超高速磁浮 电磁推进 直线电机 动子 动力学 

分 类 号：U237[交通运输工程—道路与铁道工程]