| Autor: |
Sizhan Hua, Xueyi Zhang, Jun Zhang, Chenglong Yu, Fanxi Meng, Wei Wang, Kai Geng, Wenjing Hu |
| Předmět: |
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| Zdroj: |
Progress in Electromagnetics Research C; 2024, Vol. 141, p185-193, 9p |
| Abstrakt: |
Rotor segment skew pole can effectively weaken the cogging torque, but the traditional rotor segment skew pole can also cause the unbalanced axial electromagnetic force, then add load to the bearing thus affecting the performance and decreasing the service life of the motor. It is complicated to study the effect of segment skew pole by the energy method. According to the generating mechanism of cogging torque, this paper presents an easy method. The relationship between rotor segment number and cogging torque harmonics weakening is analysed through the application of geometrical relation and Fourier series, and a simple method for determining segment number is obtained. By analysing the main source of axial force in rotor segment, a new type of rotor arrangement is proposed, which can avoid excessive axial force while retaining the effect of traditional skew mode on cogging torque weakening. The correctness of the conclusion is verified by finite element simulation and prototype experiment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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