Design Modifications for Cogging Force Reduction in Linear Permanent Magnet Machines

被引：1
|
作者：
Kumar, Praveen [1 ]
Xaxa, Lovesh B. [1 ]
Srivastava, R. K. [1 ]
机构：
[1] Indian Inst Technol BHU, Dept Elect Engn, Varanasi 221005, Uttar Pradesh, India
来源：
2020 IEEE INTERNATIONAL CONFERENCE ON POWER AND ENERGY (PECON 2020) | 2020年
关键词：
Linear PM machine; cogging force reduction; design modifications; DETENT FORCE;
D O I：
10.1109/PECon48942.2020.9314429
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 capability of Linear Permanent Magnet (LPM) machines to produce high thrust and power density are being utilized in industrial and defense sectors these days. However, the reluctance variation faced by secondary magnet flux due to primary slotting and end effects produces detent or cogging force, which results in high force ripples, noise and vibrations. This effects the smooth starting and controllability of the machine in accurate positioning applications. This paper proposes some design modifications in the primary slots and slot-openings of LPM machines for detent force minimization. The effect of various design modifications on cogging force, average electromagnetic force and force ripple has been studied using 3-D Finite Element analysis. The analysis results are also compared with that obtained using some existing cogging reduction techniques.
引用
收藏
页码：392 / 397
页数：6
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