Analysis of Traction Permanent Magnet Motor with Static and Dynamic Eccentricities

In the paper, electromagnetic and vibration analyses of traction electric machine exhibiting static and dynamic eccentricities is performed. The machine is a highspeed permanent magnet synchronous motor with surface-mounted permanent magnets and double-layer concentrated winding. The machine is intended for use in a compact drive unit in the applications such as light rail vehicles, trams or metro wagons. Vibration of electromagnetic origin are examined using finite element analysis and referenced to the machine in a perfect technical condition. Moreover, impact of the both eccentricities on stator phase currents and torques is analyzed.