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直线感应电机车辆建模与动力学仿真

, PP. 37-43

Keywords: 地铁车辆,直线感应电机,电磁场,动力学仿真

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Abstract:

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。

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