Analytical Armature Reaction Field Distribution of Slotless Brushless Machines With Inset Permanent Magnets

作者：Rahideh Akbar^*; Korakianitis Theodosios

来源：IEEE Transactions on Magnetics, 2012, 48(7): 2178-2191.

DOI：10.1109/TMAG.2012.2183608

• Armature reaction field
• brushless machines
• external rotor
• inset magnet
• internal rotor
• magnetic vector potential
• synchronous motor

An analytical armature reaction magnetic field calculation is proposed for slotless brushless machines with inset permanent magnets (PMs). The rotor/stator back-irons are assumed to have infinite permeability and therefore the analytical solutions are obtained for the winding, air-gap, and magnets regions. The analytical expressions can be used for the brushless slotless surface-inset PM machines with any armature current waveform and any number of phases. The effects of the iron inter-poles on the armature reaction field have been studied. To verify the model, the analytical results have been compared with those obtained from finite-element analyses (FEA).

• 出版日期2012-7