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.
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LIU Botao, LAN Yipeng. Research on Transverse Magnetic Field Flux Switching Electric ExcitedMagnetic Suspension Linear Motor[J]. Electric Machines & Control Application,2022,49(9):37-43.