Unbalanced magnetic force and cogging torque of PM motors due to the interaction between PM magnetization and stator eccentricity

被引：3

作者：

Seo, Bosung ^{[1
]}

Sung, Sangjin ^{[2
]}

Kang, Kyungjin ^{[2
]}

Song, Jeongyong ^{[2
]}

Jang, Gunhee ^{[1
,2
]}

机构：

[1] Hanyang Univ, Dept Adv Power Convers Syst Engn, 17 Haengdang Dong, Seoul 133791, South Korea

[2] Hanyang Univ, Dept Mech Convergence Engn, 17 Haengdang Dong, Seoul 133791, South Korea

来源：

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2016年 / 22卷 / 06期

关键词：

BRUSHLESS DC MOTORS; PERMANENT-MAGNET; REDUCTION; VIBRATION;

D O I：

10.1007/s00542-016-2839-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the characteristics of cogging torque and unbalanced magnetic forces (UMF) due to the interaction between magnetization of permanent magnets (PM) and stator eccentricity in PM motors. We mathematically and numerically show that the third harmonic of PM magnetization with stator eccentricity decreases the amplitude of the pole harmonic of the cogging torque and UMF while at the same time increasing the amplitude of the least common multiple harmonic of the pole and slot numbers of cogging torque and UMF in PM motors. The effects of the third harmonic of PM magnetization in the PM motors with stator eccentricity were experimentally verified by measuring UMF and acoustic noise.

引用

页码：1249 / 1255

页数：7