Influence of Rotor-Sleeve Electromagnetic Characteristics on High-Speed Permanent-Magnet Generator

被引：66
作者：
Li, Weili [1 ]
Qiu, Hongbo [2 ]
Zhang, Xiaochen [1 ,2 ]
Cao, Junci [1 ]
Zhang, Sainan
Yi, Ran [3 ]
机构：
[1] Beijing Jiaotong Univ, Beijing 100044, Peoples R China
[2] Harbin Univ Sci & Technol, Harbin 150080, Peoples R China
[3] Beijing Jingyi Jingye Elect Technol Co Ltd, Beijing 100034, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 06期
关键词：
Eddy-current losses; electromagnetic field; highspeed permanent-magnet generator (HSPMG); EDDY-CURRENT LOSS; OPTIMIZATION; RECTIFIER; MACHINES; LOSSES;
D O I：
10.1109/TIE.2013.2253074
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Alloy rotor sleeves are used extensively in high-speed permanent-magnet machines since they could fasten the permanent magnets availably. However, it is inevitable that eddy-current losses will be generated in the sleeve, which may make the permanent magnets overheated. In order to reduce the rotor eddy-current losses, this paper focuses on the influence of the rotor-sleeve electromagnetic characteristics. Taking a highspeed permanent-magnet generator (HSPMG) as an example, the variations of output performance and rotor eddy-current losses were analyzed when the generator adopts the steel sleeve and the copper-iron alloy sleeve, respectively, and therewith, the principles of the variations were exposed. Then, the rotor eddy-current losses were further analyzed when the generator sleeve conductivity was changed. The worst range of the sleeve conductivity was also given, in which the rotor eddy-current losses were the largest. Additionally, the increase of the sleeve permeability could reduce the main magnetic circuit reluctance and improve the operating point of permanent magnets. On the other hand, it can increase the pole-to-pole flux leakage dramatically. So, the generator performance should be analyzed by considering the two factors when the rotor-sleeve permeability was different.
引用
收藏
页码：3030 / 3037
页数：8
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