Post-assembly magnetization of High Speed PM Rotor with Metallic Sleeve

被引：0
|
作者：
Lv, Yiliang [1 ]
Xia, Dong [1 ]
Wang, Qingjian [1 ]
Li, Liang [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan, Hubei, Peoples R China
来源：
2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2017年
基金：
美国国家科学基金会;
关键词：
High speed motor; Permanent magnet; Post-assembly magnetizing; Pulsed magnetic field;
D O I：
暂无
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：
Post-assembly magnetization can greatly simplify the manufacturing process and improve the performance of permanent magnet (PM) motors, especially for high speed PM rotor with metallic retaining sleeve. The retaining sleeve has to be heated up during the shrink-fit process and the high temperature will cause irreversible demagnetization of the pre-magnetized magnet. We had developed a post-assembly magnetization fixture and successfully magnetized the rotor of a 100 kW high speed Sm(2)Col(7) permanent motor. In order to optimize the magnetizing pulse width and the energy of power supply, we investigated the required magnetizing pulse width of the permanent material, and the influence of eddy current in the metallic sleeve on the magnetizing field. In this paper, we will give the experimental and finite element analysis (FEA) simulation results. A design criterion of the magnetizing pulse width of high speed PM rotor with metallic sleeve is obtained.
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页数：5
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