换步方法对高速磁浮列车牵引特性的影响分析  

Analysis of Influence of Step-changing Method on Propulsion Characteristics of High-speed Maglev Vehicle

作　　者：吴冬华 王云飞 张志强 WU Donghua;WANG Yunfei;ZHANG Zhiqiang(CRRC Qingdao Sifang Co.,Ltd.,Qingdao,Shandong 266111,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266111

出　　处：《机车电传动》2020年第6期10-14,共5页Electric Drive for Locomotives

基　　金：国家重点研发计划项目(2016YFB1200602)。

摘　　要：常导磁浮列车采用长定子直线电机驱动方式,定子沿轨道铺设,因此采用换步方法对直线电机分段供电以降低能耗,保证电机端电压。文章研究高速磁浮长定子直线同步电机换步方式,对比两步法和三步法换步特性对磁浮车辆牵引特性及动力学性能的影响,分析2种换步方式的适用工况,通过仿真证明了两步法可用于匀速路段以减少设备投资,三步法性能优于两步法,可保证牵引能力。The electromagnetic suspension maglev vehicle is driven by the long stator linear motor, and the stators are laid along the track. Therefore, the step-changing method is adopted to supply power to the linear motor in sections to reduce energy consumption and ensure the terminal voltage of the motor. The long stator linear synchronous motor step-changing mode of high-speed maglev vehicle was studied, and by comparing the influence of the step-changing characteristics of two-step method and three-step method on traction characteristics and dynamic performance of maglev vehicle, the applicable operating conditions of the two step-changing modes were analyzed. The simulation results showed that the two-step method could be used in uniform velocity segment to reduce equipment investment, the three-step method had better performance than the two-step method and had higher propulsion capability.

关 键 词：高速磁浮列车 换步方法 长定子直线电机 两步法 三步法 仿真 

分 类 号：U237[交通运输工程—道路与铁道工程]