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
收藏
页码：5203 / 5212
页数：10
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