直线感应电机车辆建模与动力学仿真  

Modeling and dynamics simulation of vehicle with linear induction motor

作　　者：刘彬彬[1] 曾京[1] 罗仁[1] 邬平波[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《交通运输工程学报》2009年第5期37-43,61,共8页Journal of Traffic and Transportation Engineering

基　　金：国家自然科学基金项目(50675181);西南交通大学创新团队培育计划项目(2007IRT01);牵引动力国家重点实验室自由探索自主研究课题(2008TPL_T02)

摘　　要：为了研究采用直线感应电机(LIM)驱动的地铁车辆的动力学性能和直线感应电机的悬挂特性,建立了直线感应电机的经典电磁力学模型和有限元模型、地铁车辆系统多体动力学模型。在直线感应电机的经典电磁力学模型中,考虑了纵向边端效应、横向边端效应和气隙等因素的影响。采用数值方法求解电机的牵引力、法向力和点头力矩,对比了经典模型和有限元模型的计算结果。仿真结果表明:直线感应电机力学模型能反映直线感应电机力学特性,满足地铁车辆动力学仿真要求;直线感应电机地铁车辆动力学特性与电机气隙变化规律和悬挂方式密切相关,不同的电机悬挂方式各有利弊;合适的电机悬挂方式和气隙控制策略能提高车辆运行稳定性,降低轮轨磨耗和改善车辆曲线通过性能。In order to research the dynamics performance of linear-motor metro vehicle and the suspension characteristics of linear induction motor （LIM）, the classical electromagnetic mechanics model and finite element model of LIM, and the multibody dynamics model of the vehicle were established. The longitudinal and lateral end effects and air gap were taken into account in the classical model. Numerical method was adopted to solve the traction force, normal force and pitch moment of LIM. The solution results by the classical model were compared and verified by using finite element method. Simulation result shows that the classical model describes the mechanic properties of LIM and meets the requirement of dynamics simulation for metro vehicle. The dynamic performance of LIM is closely related to the change of air gap and suspension types. Different suspension types have their own advantages and disadvantages. Proper suspension type and air-gap control strategy can increase the stability of metro vehicle, reduce the wheel-rail wear and improve the curving performance of vehicle system.

关 键 词：地铁车辆 直线感应电机 电磁场 动力学仿真 

分 类 号：U270.11[机械工程—车辆工程]