Hysteresis Loss in Ferrite Permanent Magnets in Rotating Electrical Machinery

被引：10

作者：

Egorov, Dmitry ^{[1
]}

Petrov, Ilya ^{[1
]}

Pyrhonen, Juha ^{[1
]}

Link, Joosep ^{[2
]}

Stern, Raivo ^{[2
]}

机构：

[1] Lappeenranta Univ Technol, Sch Technol, Dept Elect Engn, LUT Energy, Lappeenranta 53851, Finland

[2] NICPB, Dept Chem Phys, EE-12618 Tallinn, Estonia

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2018年 / 65卷 / 12期

关键词：

Electric machines; ferrites; loss measurement; magnetic field measurement; magnetic hysteresis; magnetic losses; magnetic materials; permanent magnet (PM) machines; permanent magnets; HYDROTHERMAL SYNTHESIS; DEMAGNETIZING FACTORS; RECTANGULAR PRISMS; MOTOR; MODELS; MORPHOLOGY; DESIGN; PMSMS; STOP;

D O I：

10.1109/TIE.2018.2822619

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, hysteresis loss in magnetic poles of electrical machines with ferrite permanent magnets is studied. A vibrating sample magnetometer is used to observe the hysteresis behavior of three distinct commercial ferrite magnet grades. The measurement results indicate the presence of additional magnetic phases with reduced coercivity in the samples under study. These phases can act as an additional source of loss in ferrite magnets. A new modeling concept is introduced to simulate the hysteresis behavior of the ferrite magnet grades in the second and first quadrants of the intrinsic BH plane. Finite-element-calculated magnetic field distribution is used as an input for the analytical model to determine the hysteresis loss in the magnets of two distinct permanent magnet machine designs. The results indicate that some hysteresis loss in the ferrite permanent magnet magnetic poles of electrical machines may occur, but it plays a minor role in practice.

引用

页码：9280 / 9290

页数：11

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