| Title |
Study on the High Efficiency Design through the Loss Reduction of the 110kW Class High-output Density PMSM |
| Authors |
전현우(Jun, Hyun-Woo) ; 박응석(Park, Eung-Seok) ; 이주(Lee, Ju) ; 이형우(Lee, Hyung-Woo) |
| DOI |
https://doi.org/10.5370/KIEE.2015.64.6.954 |
| Keywords |
PMSM ; Loss reduction ; Eddy current loss ; Harmonics |
| Abstract |
In this paper, 110kW high output density, high efficiency Permanent Magnet Synchronous Motor which can be applied on tram’s traction system is introduced, along with its output and loss characteristics. The motor model is 2pole 18slot model and its size has been reduced through the high speed for high output density. Especially, structure and retainer sleeve structure is applied to its structure, which is also appropriate for high speed rotation. This kind of structure has eddy current loss problem on the surface of rotor, which must be reduced for high output density design. This study has designed the most optimized additional design parameter in order to improve the output characteristics and efficiency of previous produced 2pole 18 slot 110kW motor model and how the width of airgap affects from the loss perspective is mainly analyzed. Finally, the analysis on the extent of the efficiency improvement effect compared to the previous model has performed through electromagnetic FEM analysis. The influence of airgap flux density distribution has also been thoroughly examined. |