Finite element analysis of an external rotor permanent magnet synchronous machine with star- and delta-connected tooth coil windings

Abstract

The permanent magnet synchronous machine with an external rotor is the most important device for high performance electrical drive systems in particular for hybrid electric vehicles. The paper discusses finite element analyses of such a machine with concentrated tooth coils in terms of a comparison of both Y-and Δ-connected stator windings. As the evolved electromagnetic torque is one of the most important design parameter, various ratios of tooth width and slot pitch are analyzed with the two connections of the stator winding. On the other hand, the phase voltages for various operating conditions are compared between both Y-and Δ-connected stator windings.

Analysis of the PM Motor with External Rotor for Direct Drive of Electric Wheelchair

“…Main results of the electromagnetic and construction design of synchronous motor with permanent magnets on external rotor is described in paper [8]. For the design and electromagnetic calculations of PMSM, the basic equations and information were used referring to [9][10][11][12][13][14][15]. The calculation of parameters and dimensions of SMPM was done by using a debugged m-file in MATLAB 2013a.…”