[Zurück]

E. Schmidt, M. Susic:
"Finite element analysis of permanent magnet synchronous machines with fractional slot tooth coil windings";
E&I Elektrotechnik und Informationstechnik, 3 (2011), S. 86 - 94.

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 D-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 are compared between both Y- and D-connected stator windings. With an intent of a position sensorless control of the machine, special attention is given to the differential inductances in dependence on the angular rotor position. Finally, the numerically obtained results are compared with measurement results obtained from a prototype machine.

http://publik.tuwien.ac.at/files/PubDat_196468.pdf