Journal: IEEE Transactions on Magnetics
Authors: Soon-O Kwon, Jeong-Jong Lee, Byeong-Hwa Lee, Jung-Pyo Hong
DOI: 10.1109/TMAG.2009.2022749
This paper deals with the loss distribution of a three-phase induction motor (IM) and a BLDC motor considering operating point-of-core material based on the FEA and experiments. In order to increase motor efficiency, a high grade of core material can be used. However, sometimes it decreases or provides no improvement of efficiency. This is due to the fact that high-grade core materials generally have lower saturation flux density and core loss. Therefore, when operation of point-of-core materials is in a high-saturation region with low frequency, there could be no significant improvements or decrease of efficiency. The presented results give guidelines to selecting core materials to improve motor efficiency.