Title :
Three-dimensional characteristic analysis of micro BLDC motor according to slotless winding shape
Author :
Hur, Jin ; Rhyu, Se-Hyun ; Jung, In-Soung ; Sung, Ha-Gyeong ; Kwon, Byung-Il
Author_Institution :
Precision Machinery Res. Center, Korea Electron. Technol. Inst., Kyunggi-Do, South Korea
Abstract :
The winding of slotless BLDC (SLBLDC) motor has a rhombic shape or hexagonal shape in its axial direction. So, its shape is not uniform in its axial direction. The analysis and design of slotless brushless dc (SLBLDC) motor must consider the three-dimensional (3-D) shape of the winding. In particular the magnetization distribution of PM as well as the shape determines the output characteristics of SLBLDC motor, which has a 3-D pattern because of the overhang. For the analysis, a new numerical method is developed. The analysis results of this method have been compared with the measured results.
Keywords :
brushless DC motors; magnetic flux; permanent magnet motors; axial direction; hexagonal shape; magnetization distribution; micro BLDC motor; output characteristics; overhang; rhombic shape; slotless brushless de motor; slotless winding shape; three-dimensional characteristic analysis; Brushless DC motors; Brushless motors; Coils; Conductors; Fourier series; Magnetic analysis; Magnetization; Permanent magnet motors; Shape; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816716
