EMS型磁悬浮列车电磁系统动态电磁场的有限元分析及其悬浮与牵引力特性的研究

A TIME-STEPPING FEM FOR TRANSIENT ELECTROMAGNETIC FILED ANALYSIS AND LEVITATION AND PROPELLANT FORCE STUDY OFAN EMS MAGLEV TRAIN

该文基于有限元数值计算的场路耦合的动态数学模型,分析了 EMS 型磁悬浮列车电磁系统动态电磁场分布及其相应工程参数。为避免由于电机定、转子相对运动而引起的气隙场域剖分网格的畸变问题,在气隙中引入了运动边界。实例计算验证了该文构造方法的正确性和工程实用性。

This paper, based on the finite element computa-tion by using a dynamic model coupled with the equations of external electric circuits,analyzes the transient magnetic field distribution and the corresponding engineering parameters of EMS maglev vehicle. To aviod the airgap mesh distortion caused by the movement of the rotor ,moving boundaries are introduced in the airgap.Finally,an example is given to check the engineering feasibility and correctness.