Suppression of Permanent Magnet Eddy Current Loss in High-Speed Machines

被引：0

作者：

Khan, Hamid Ali ^{[1
]}

Khan, Faisal ^{[1
]}

Sami, Irfan ^{[2
]}

Ahmad, Naseer ^{[3
]}

机构：

[1] COMSATS Univ Islamabad, Dept Elect & Comp Engn, Abbottabad Campus, Abbottabad, Pakistan

[2] Chung Ang Univ, Dept Elect & Elect Engn, Seoul, South Korea

[3] Balochistan Univ Informat Technol Engn & Manageme, Fac Informat & Commun Technol, Quetta, Pakistan

来源：

2021 IEEE INTERNATIONAL POWER AND RENEWABLE ENERGY CONFERENCE (IPRECON) | 2021年

关键词：

High-Speed PM Machine; PM eddy current losses; auxiliary slots; sleeves; spatial harmonics; DESIGN;

D O I：

10.1109/IPRECON52453.2021.9640906

中图分类号：

学科分类号：

摘要：

Computation eddy losses are vital for the high-speed permanent magnet (PM) machines. These losses extensively rise with speed and influence the electromagnetic performance and the temperature of PM, which may cause PM demagnetization. In this article, a simple technique for reducing PM eddy current loss (ECL) is proposed. A novel rotor structure with a retaining enclosure over solid PM and tooth coil winding configuration is proposed. The source of the ECL's, that is, asynchronous harmonics of magnetomotive force (MMF), are analyzed. Utilizing the proposed technique, a significant reduction in PM ECL is observed. The FEA analysis shows that the magnet eddy losses are reduced by 80.3%, cogging torque is diminished by 61.7%, and iron loss by 45.2% compared to the conventional model.

引用

页数：5

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