Title :
Comparison of axial flux permanent magnet machines with fractional and integral slot per pole
Author :
Nguyen, T.D. ; Tseng, K.J.
Author_Institution :
Centre for Smart Energy Syst., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper presents the comparison of axial flux permanent magnet (AFPM) machines with fractional and integral slot per pole in term of torques and losses. The two AFPM machines with 1.5 slots / pole / phase and 2 slots / pole / phase are analyzed using three-dimensional finite element method. The electromagnetic torque, cogging torque and torque ripple of these two machines are compared. Machine losses caused by space harmonics and time harmonics are respectively evaluated. Comparisons of simulated and measured values on prototype machines are also presented to validate the analyses.
Keywords :
finite element analysis; permanent magnet machines; AFPM machines; axial flux permanent magnet machines; cogging torque; electromagnetic torque; fractional slot per pole; integral slot per pole; machine loss; space harmonics; three-dimensional finite element method; time harmonics; torque ripple; Forging; Harmonic analysis; Magnetic flux; Rotors; Stator windings; Torque; Axial Flux Permanent Magnet Machine; Cogging Torque; Flywheel Energy Storage System (FESS); Power Losses; Three Dimensional Finite Element Analysis (3D FEA); Torque Ripple;
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6039327
