| Title |
A Study on Efficiency Improvement Design Considering Demagnetization of Permanent Magnet of IPMSM |
| Authors |
문주형(Ju-Hyeong Moon) ; 이동열(Dong-Yeol Lee) ; 소용대(Yong-Dae So) ; 강동우(Dong-Woo Kang) |
| DOI |
https://doi.org/10.5370/KIEEP.2020.69.4.219 |
| Keywords |
Cogging torque; notches in teeth; optimization; permanent-magnet synchronous-machine; torque ripple; two-dimensional (2-D) finite element method (FEM) |
| Abstract |
Currently, in many fields of research for miniaturization and high efficiency of electronic parts are being conducted in order to reduce the weight and improve efficiency of electric vehicles. We redesigned the distributed winding model into the concentrated winding model. The purpose of this research is to reduce the weight of the motor by reducing the end coil, improving the operation efficiency at the low speed section and increase the output by changing the winding method. In order to solve irreversible demagnetization problem, this paper analyzes the rotor design parameters that are a major factor in the irreversible demagnetization and design the structure to improve them. Since then, we have implemented the loss reduction and efficiency improvement design through the optimization of the stator design parameters. To verify the reliability of the simulation results, load experiments using dynamo test bench were conducted and analyzed. |