Reduction of Magnet Eddy-Current Loss in Interior Permanent-Magnet Motors With Concentrated Windings

被引：65

作者：

Yamazaki, Katsumi ^{[1
]}

Kanou, Yuji ^{[1
]}

Fukushima, Yu ^{[1
]}

Ohki, Shunji ^{[2
]}

Nezu, Akira ^{[2
]}

Ikemi, Takeshi ^{[2
]}

Mizokami, Ryoichi ^{[2
]}

机构：

[1] Chiba Inst Technol, Dept Elect Elect & Comp Engn, Narashino, Chiba 2750016, Japan

[2] Nissan Motor Co Ltd, EV Powertrain Engn Dept, Zama 2288502, Japan

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2010年 / 46卷 / 06期

关键词：

Eddy currents; finite-element methods; harmonics; hysteresis; losses; magnetic field; motor speed control; optimization methods; permanent-magnet motors; MACHINES;

D O I：

10.1109/TIA.2010.2073672

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we develop stator and rotor shapes of interior permanent-magnet motors with concentrated windings in order to reduce the eddy-current loss of the magnets at high rotational speeds under field-weakening control. First, the main factors that cause the magnet eddy-current loss in the motor are investigated from the results of the 3-D finite-element method. The magnet eddy-current loss is separated into three components due to their origins, and the largest component is specified. With this result, an automatic shape optimization is carried out to determine the stator and rotor shapes, which reduce the magnet eddy-current loss without significant decreases in the torque. Finally, the proposed stator and rotor are manufactured in order to confirm the characteristics. The advantages over the conventional motor are clarified.

引用

页码：2434 / 2441

页数：8

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