Analysis of iron losses of high-speed permanent magnet synchronous motor

被引：0
|
作者：
Ge B.-J. [1 ]
Luo Q.-T. [1 ,2 ]
Wang L.-K. [1 ]
Tao D.-J. [1 ]
Lü F. [1 ,3 ]
Dou Q.-P. [1 ,4 ]
机构：
[1] National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin
[2] State Grid Huaian Power Supply Company, Huai'an
[3] State Grid Binhai County Power Supply Company, Yancheng
[4] State Grid Taizhou Power Supply Company, Taizhou
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 04期
关键词：
Additional loss; Harmonic; High-speed; Iron loss; Permanent magnet synchronous motor; Rotating magnetic field;
D O I：
10.15938/j.emc.2020.04.004
中图分类号：
学科分类号：
摘要：
In order to analyze the distribution of iron loss in each region of stator of high-speed permanent magnet synchronous motor, a two-dimensional permanent element model of high-speed permanent magnet synchronous motor is established by taking a high-speed permanent magnet synchronous motor rating 67 002 r/min, at 250 kW for example. The regional division of the stator was carried out to study the variation law of radial flux density and tangential flux density in each region in a cycle, the distribution characteristics of iron loss in each area of stator core were calculated by using different iron loss models, the calculation results of stator iron loss were compared with those of finite element method, and the distribution characteristics of iron loss density of high speed permanent magnet synchronous motor were further analyzed. The results show that when the high-speed permanent-magnet synchronous motor operates stably at a higher frequency, the eddy current loss in the stator core accounts for the largest proportion of the total core loss, and the additional loss accounts for the smallest proportion. When considering the effect of rotating magnetic field and harmonic component on stator core loss, the calculation results of stator loss are obviously higher than those of only considering the effect of alternating magnetic field, and the results are close to the finite element calculation results. Although the iron consumption of stator tooth top is minimum, the loss density is the largest in this region. In addition, there is a great deal of harmonic iron loss in each region of stator core. This research can provide a reference for the design of high-speed permanent magnet synchronous motor. © 2020, Harbin University of Science and Technology Publication. All right reserved.
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页码：32 / 39
页数：7
相关论文
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