Title :
Analysis of a Low-Cost Air-Gap Winding for Permanent Magnet Synchronous Motors
Author :
Wallmark, Oskar ; Kjellqvist, Peter
Author_Institution :
Swedish Center of Excellence in Electr. Power Eng. (EKC2), R. Inst. of Technol. (KTH), Stockholm, Sweden
Abstract :
This paper presents an analysis of a concentrated air-gap winding concept intended for low-cost, high-speed applications where the reduced winding construction cost can motivate its use. Expressions for magnet flux linkage, torque, winding inductance, and unbalanced magnetic pull are derived and compared, with good agreement, to measurements and results obtained from finite-element simulations.
Keywords :
finite element analysis; permanent magnet motors; synchronous motors; finite element simulations; high-speed applications; low-cost air-gap winding; magnet flux linkage; permanent magnet synchronous motors; winding construction cost; winding inductance; AC motor drives; high-speed motors; machine tools; machine windings; permanent magnet motors; slotless windings;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2009.2025343
