Linear-Rotary Permanent Magnet Actuator With Independent Magnetic Circuit Structure

被引:3
|
作者
Guo, Kaikai [1 ]
Fang, Shuhua [1 ]
Lin, Heyun [1 ]
Huang, Yunkai [1 ]
Zhang, Yang [1 ]
Yang, Hui [1 ]
机构
[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Detent force; linear-rotary permanent magnet actuator; independent magnetic circuit structure; Maxwell stress tensor method; DESIGN; OPTIMIZATION;
D O I
10.1109/TASC.2016.2603005
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
The paper proposes a novel linear-rotary permanent magnet actuator with an independent magnetic circuit structure, which decreases the coupling relationship between the fluxes of adjacent phases. The amplitude of cogging force is reduced by choosing proper distance between adjacent stator segments in the axial direction, while the thrust force can be increased. A 3-D model is built for analyzing the air gap magnetic flux density and a simplified model of one section is built for calculating thrust force. The expression of cogging force, end force, normal force are derived by analytic method and Maxwell stress tensor method. The analytic results verified by finite element method show that the detent force can be minimized when the distance between two adjacent stators in axial direction approaches 2 tau/3.
引用
收藏
页码:1 / 6
页数:6
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