| Title | Novel Efficiency-shifting Radial-Axial Hybrid Interior Permanent Magnet Sychronous Motor for Electric Vehicle |
| Publication Type | Conference Paper |
| Year of Publication | 2020 |
| Authors | Won, Hoyun, Hong, Yang-Ki, Choi, Minyeong, Yoon, Hwan-sik, Li, Shuhui, Haskew, Tim |
| Conference Name | 2020 IEEE Energy Conversion Congress and Exposition (ECCE) |
| Date Published | oct |
| Keywords | and efficiency-shifting motor, compositionality, Cyber-physical systems, electric vehicle, Internet of Things, Magnetic Remanence, permanent magnet motors, pubcrawl, Radial and axial permanent magnet motor, remanence, Resiliency, Rotors, Stators, synchronous motors, Torque, Traction motors, Windings |
| Abstract | A novel efficiency-shifting radial-axial hybrid permanent magnet synchronous motor that can realize two high-efficiency regions at low and high speeds is developed to extend the maximum driving distance and track the reference speed more accurately for electric vehicle application. The motor has two stators, which are radial and axial, to rotate one shared rotor. The rotor employs two combined topologies, i.e., inner surface-inset-mounted and outer V-shaped interior-mounted. For both outer and inner permanent magnets, Nd-Fe-B, having the remanent flux density of 1.23 T and coercivity of 890 kA/m, is used. The simulation result shows that the designed motor exhibits not only high maximum torque of 400 Nm and the maximum speed of 18,000 rpm but also two high-efficiency regions of 97.6 % and 92.0 % at low and high speed, respectively. Lastly, the developed motor shows better performance than corresponding separated radial and axial permanent magnet motor. |
| DOI | 10.1109/ECCE44975.2020.9236145 |
| Citation Key | won_novel_2020 |
Novel Efficiency-shifting Radial-Axial Hybrid Interior Permanent Magnet Sychronous Motor for Electric Vehicle