| Title |
Optimal Efficiency Design and Comparison according to Magnet Materials of Coaxial Magnetic Gear |
| Authors |
박의종(Eui-Jong Park) ; 정상용(Sang-Yong Jung) ; 김용재(Yong-Jae Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2020.69.2.271 |
| Keywords |
Magnet material; NdFeB; Nd-bonded; Ferrite; Coaxial magnetic gear; Magnet conductivity; Efficiency |
| Abstract |
Various studies have been conducted since magnetic gears can replace mechanical gears and the non-contact power transmission characteristics of magnetic gears have emerged. Recent studies use rare earth permanent magnets to represent the high power density of magnetic gears. However, the conductive properties of the rare earth permanent magnets resulted in a decrease in efficiency.
Using the ferrite permanent magnets, which have no conductivity, were difficult to compete in size. This paper presents the basic design of magnetic gears using three permanent magnet (NdFeB, Nd-bonded, Ferrite) materials and shows the results of size, efficiency characteristics. |