International Journal of Applied Electromagnetics & Mechanics, v. 59, No. 3, Page. 865-872
Abstract
In this paper, comparisons of the interior permanent magnet (IPM) BLDC motor characteristics considering the slotpole
combination and the magnetization direction simultaneously were done. The three directions of magnetization, radial,
parallel and concentration were selected and analyzed for the same permanent magnet shape. No-load and load characteristics
were compared. As a result, the motor efficiency of the combination of 6-slot and concentration directions was the best. Through
analysis and comparisons, it was confirmed that the magnetization direction should also be considered as an important variable
in initial design of the motor.