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

fYear

2011

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2011 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4577-1000-1

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PES.2011.6039327

Filename

6039327