Title :
Effect of pole to slot number ratio on back-EMF constant of BLDC motor with nonoverlapping stator winding
Author :
Cho, Han-Sam ; Cho, Hyun-Rae ; Lee, Hae-Seok
Author_Institution :
Digital Media Lab., LG Electron. Inc., Seoul, South Korea
Abstract :
This paper presents a general expression of back-EMF constant of 3-phase permanent magnet brushless DC (BLDC) motor with nonoverlapping stator winding. From the expression, any possible combinations of pole and slot numbers are found and the value of back-EMF constant is compared in the several cases of different pole to slot number ratios and airgap flux density waveforms
Keywords :
air gaps; brushless DC motors; machine theory; magnetic flux; stators; 3-phase permanent magnet brushless DC motor; air gap flux density waveforms; back-EMF constant; nonoverlapping stator winding; pole to slot number ratio; Brushless DC motors; Brushless motors; Coils; DC motors; Genetic expression; Joining processes; Permanent magnet motors; Stator windings; Teeth; Wounds;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769025
