Title :
FEM evaluation of performance of axial flux slotted permanent magnet machines
Author :
Caricchi, F. ; Crescimbini, F. ; Santini, E. ; Santucci, C.
Author_Institution :
Dept. of Electr. Eng., Rome Univ., Italy
Abstract :
Axial-flux permanent magnet machines with slotted windings exhibit a significant cogging torque due to the magnetic anisotropy of the stator. The same produces a harmonic content in machine back EMF. The paper introduces and discusses a simple and powerful FEM algorithm that gives a numerical evaluation of both cogging torque and back EMF. Parametric analysis leads to a machine design that most meets the requirements for low cogging torque and limited higher harmonic content in back EMF.
Keywords :
harmonics; machine theory; magnetic anisotropy; permanent magnet machines; stators; torque; FEM algorithm; axial-flux slotted PM machines; cogging torque; harmonic content; machine back EMF; machine design; machine performance evaluation; numerical evaluation; parametric analysis; slotted windings; stator magnetic anisotropy; Algorithm design and analysis; Forging; Harmonic analysis; Iron; Machine windings; Magnetic analysis; Permanent magnet machines; Shape; Stators; Torque;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.732252
