Impact of Mechanical Stress on Characteristics of Interior Permanent Magnet Synchronous Motors

被引：26
|
作者：
Yamazaki, Katsumi [1 ]
Takeuchi, Hidetada [1 ]
机构：
[1] Chiba Inst Technol, Dept Elect Elect & Comp Engn, Narashino, Chiba 2750016, Japan
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2017年 / 53卷 / 02期
关键词：
Finite-element methods; losses; permanentmagnet motors; stress; torque; IRON LOSS ANALYSIS; CORE; TORQUE;
D O I：
10.1109/TIA.2016.2616408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we investigate the impact of mechanical stress on characteristics of interior permanent magnet synchronousmotors from both results of measurement and calculation. First, the basic experiments by using stator coreswith/without shrink fitting of housings are carried out. The measured iron loss is compared with the calculated results obtained by combined stress and electromagnetic field finite-element analysis. Next, the measured torque and iron loss of the motor under load conditions are compared with the analysis that considers the mechanical stress caused by both the stator shrink fitting and the rotor centrifugal force. The measured and calculated results are found to be in good agreement. From these results, it is clarified that the mechanical stress causes not only an increase in the stator iron loss, but also an increase in the rotor-iron loss, and a decrease in the reluctance torque of interior permanent magnet synchronous motors.
引用
收藏
页码：963 / 970
页数：8
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