TY - GEN
T1 - A New nalysis Method Based on Lumped Magnetic Circuit Model for Surface Permanent-Magnet Machines with Step-Skewed Rotor
AU - Kim, Rae Eun
AU - Hahn, Seungyong
AU - Seo, Jangho
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This study proposes a new analysis method based on lumped magnetic-circuit for surface permanent-magnet machine (SPM) with overhang and step-skewed rotor. In SPM machine, the step-skew lowers the torque pulsation and makes the electromotive force sinusoidal, and the overhang structure increases the torque density. A time-consuming three dimensional (3-D) finite element method (FEM) is required to analyze axial components such as step-skew leakage flux and overhang flux. To deal with this problem, a new equivalent lumped magnetic-circuit model for each rotor step considering the axial leakage flux between the steps and the linkage flux by the overhang is introduced. The validity of the proposed method is verified by comparing a two-dimensional and 3-D FEM of skewed, non-skewed, overhang, and non-overhang SPMs.
AB - This study proposes a new analysis method based on lumped magnetic-circuit for surface permanent-magnet machine (SPM) with overhang and step-skewed rotor. In SPM machine, the step-skew lowers the torque pulsation and makes the electromotive force sinusoidal, and the overhang structure increases the torque density. A time-consuming three dimensional (3-D) finite element method (FEM) is required to analyze axial components such as step-skew leakage flux and overhang flux. To deal with this problem, a new equivalent lumped magnetic-circuit model for each rotor step considering the axial leakage flux between the steps and the linkage flux by the overhang is introduced. The validity of the proposed method is verified by comparing a two-dimensional and 3-D FEM of skewed, non-skewed, overhang, and non-overhang SPMs.
KW - 3-D finite element method
KW - overhang
KW - step-skew
KW - surface permanent magnet machines
UR - https://www.scopus.com/pages/publications/85143064343
U2 - 10.1109/CEFC55061.2022.9940697
DO - 10.1109/CEFC55061.2022.9940697
M3 - Conference contribution
AN - SCOPUS:85143064343
T3 - CEFC 2022 - 20th Biennial IEEE Conference on Electromagnetic Field Computation, Proceedings
BT - CEFC 2022 - 20th Biennial IEEE Conference on Electromagnetic Field Computation, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2022
Y2 - 24 October 2022 through 26 October 2022
ER -