Core Loss Analysis and Calculation of Stator Permanent-Magnet Machine Considering DC-Biased Magnetic Induction

被引：112

作者：

Zhu, Sa ^{[1
]}

Cheng, Ming ^{[1
]}

Dong, Jianning ^{[1
]}

Du, Jun ^{[1
,2
]}

机构：

[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] Chongqing Jiaotong Univ, Sch Electromech & Automot Engn, Chongqing 400074, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Core loss; dc-biased magnetization; hysteresis loop; stator permanent-magnet (PM) machine; IRON LOSSES; MOTOR; TORQUE; DESIGN;

D O I：

10.1109/TIE.2014.2300062

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, core loss characteristics of stator permanent-magnet (PM) machines are analyzed and calculated, in which the unique dc-biased magnetic induction is taken into account. The flux density variation patterns in some key points in a doubly salient PM (DSPM) machine are analyzed by the two-dimensional time-stepping finite-element method. To calculate the core loss of stator and other minor hysteresis loops under dc magnetic bias, core loss characteristics of silicon steel sheet under dc-biased induction condition are first tested by a simple test system based on traditional Epstein frame and a functional relationship between the change of dc-biased induction and hysteresis loss is proposed. Two core loss calculation methods considering rotational magnetization based on flux density waveform are improved to take the influence of dc-biased magnetic induction into consideration. The calculation results are verified by experiments on a prototype DSPM machine. The conclusions are also applicable to other kinds of stator PM machines.

引用

页码：5203 / 5212

页数：10

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