Optimal Design of Permanent Magnet Structure to Reduce Unbalanced Magnetic Pull in Surface-Mounted Permanent-Magnet Motors

被引:16
作者
Wang, Huimin [1 ]
Liu, Shu [1 ]
Wu, Shuang [2 ]
Guo, Liyan [1 ]
Shi, Tingna [3 ]
机构
[1] Tiangong Univ, Sch Elect Engn & Automat, Tianjin 300387, Peoples R China
[2] Tianjin Univ, Sch Elect & Informat Engn, Tianjin 300072, Peoples R China
[3] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
基金
国家自然科学基金重大项目;
关键词
Fractional slot SPMSM; unbalanced magnetic pull(UMP); torque fluctuation; Taguchi method; COGGING TORQUE MINIMIZATION; SYNCHRONOUS MACHINES; VIBRATION; SUPPRESSION; FORCE; NOISE; SLOT;
D O I
10.1109/ACCESS.2020.2989803
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
For the surface-mount permanent magnet synchronous motors (SPMSM) with fractional slot concentrated windings, the winding distribution of per phase under different poles is uneven, which results in unbalanced magnetic pull (UMP) between the stator and rotor. UMP has an important impact on the performance and service life of the motor. In this paper, a new permanent magnet (PM) structure is proposed to reduce UMP and torque fluctuation of the fractional slot SPMSM. Furthermore, a 48p/54s SPMSM is taken as an example, the proposed PM structure is optimized by the Taguchi method which can comprehensively consider the control factors and noise factors. The effects of various variables and process error on UMP, torque fluctuation and robustness of results are analyzed respectively. Finally, the optimized PM structure is obtained, which improves the operation stationarity.
引用
收藏
页码:77811 / 77819
页数:9
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