在传统磁通切换直线电机的基础上，提出了一种可用于轨道交通的横向磁场磁通切换电励磁磁悬浮直线电机（TMFFSEEMSLM）。研究TMFFSEEMSLM的结构与运行原理，该电机的定子为U形磁极，动子为双H形并通过横梁连接，产生横向磁通进行导向，电枢绕组和励磁绕组均位于电机短初级上实现磁通切换，次级仅由导磁铁心构成，电励磁实现气隙磁场调节，极大地降低了远距离轨道交通的制造成本，磁悬浮使电机的初级和次级实现无摩擦运动；建立该磁悬浮直线电机的数学模型，推导电压、磁链方程以及悬浮力、电磁推力和导向力的解析表达式；建立电机的三维有限元模型，分析电机的磁场分布及其电磁参数，对电机的悬浮力、电磁推力、导向力进行仿真，研究结果验证了电机结构的可行性，可以实现牵引、悬浮与导向的一体化。

Based on the traditional flux switched linear motora transverse magnetic field flux switched electric excited magnetic suspension linear motor (TMFFSEEMSLM) for rail transit is proposed. The structure and the operation principle of TMFFSEEMSLM are studied. The stator of the motor is U-shaped magnetic polethe mover is double H-shaped and connected through a beam to generate transverse magnetic flux for guidance. The armature winding and excitation winding locate on the short primary of the motor to realize magnetic flux switchingand the secondary is only composed of magnetic core. Electrical excitation realizes air gap magnetic field regulationgreatly reduce the manufacturing cost of long-distance rail transit. Magnetic suspension enables frictionless motion at the primary and secondary levels of the motors. The mathematical model of magnetic suspension linear motor is establishedand the voltageflux linkage equations and the analytical expressions of suspension forceelectromagnetic thrust and guidance force are derived. The three-dimensional finite element model of the motor is establishedthe magnetic field distribution and electromagnetic parameters of the motor are analyzedand the suspension forceelectromagnetic thrust and guidance force of the motor are simulated. The research results verify the practicability of the motor structure. The integration of tractionsuspension and guidance is realized.

TM359.4