高速永磁爪极电机铁耗与空气摩擦损耗计算

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摘要高速电机由于采用高频电源供电,铁心损耗较常规电机突出,且高速旋转引起的空气摩擦损耗亦非常严重。此外爪极电机磁路结构复杂且其磁通呈三维分布,因此需要考虑三维磁场、高频谐波和高速旋转等因素,针对该种高速电机损耗计算模型进行研究。首先通过三维有限元电磁仿真软件对该种电机的磁场分布特点进行分析;然后采用三维正交交变磁化近似等效旋转磁化建立铁耗计算模型,并考虑高频谐波对其影响,通过与有限元软件计算结果对比,验证了计算模型的准确性;此外针对转子转速、转子表面光滑度、轴向风速等因素对空气摩擦损耗的影响进行分析;最后通过实验验证了铁心损耗和空气摩擦损耗计算方法的准确性。

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	刘光伟
	赵新刚
	张凤阁
	赵鑫
	Wenping Cao

关键词 ：高速电机, 永磁电机, 爪极电机, 铁耗, 空气摩擦损耗

Abstract：Due to high frequency power supply, the iron loss of high speed machine is more serious than conventional machine, and the problem of air friction loss caused by high speed rotation is critical also. In addition, because of complicated structure and three-dimension flux distribution, the loss calculation model of the high speed claw pole machine should be researched with considering some factors such as three-dimension magnetization, high frequency harmonic and high speed rotation. Firstly, the characteristics of flux distribution is analyzed by three-dimension finite element simulation software. Secondly, the iron loss model is built in consideration of effect of three-dimension quadrature alternating magnetization and harmonic, and the results of the finite element analysis validate accuracy of calculation model; then the influence factors of air friction loss are researched, which are rotor speed, rotor surface smoothness and axial wind speed. Lastly, according to test of prototype, the accuracy of calculation method of iron loss and air friction loss is verified.

Key words： High speed machine permanent magnet machine claw pole machine iron loss air friction loss

收稿日期: 2014-06-10 出版日期: 2015-04-14

PACS:

TM351

基金资助:国家自然科学基金（51077094,51207094）和辽宁省高校创新团队支持计划（LT2011003）资助项目

作者简介: 刘光伟男,1983年生,硕士,讲师,研究方向为永磁电机。赵新刚男,1989年生,硕士研究生,研究方向为高速永磁电机。

引用本文:

刘光伟,赵新刚,张凤阁,赵鑫,Wenping Cao. 高速永磁爪极电机铁耗与空气摩擦损耗计算[J]. 电工技术学报, 2015, 30(2): 148-154. Liu Guangwei,Zhao Xingang,Zhang Fengge,Zhao Xin,Wenping Cao. Iron Loss and Air Friction Loss for High Speed Permanent Magnet Claw Pole Machines. Transactions of China Electrotechnical Society, 2015, 30(2): 148-154.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2015/V30/I2/148

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