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浙江大学学报(工学版)
电气工程     
车用永磁同步电机转矩解析模型和波动特性分析
左曙光,林福,吴旭东
 同济大学 新能源汽车工程中心,上海 201804
Analytical calculation model and ripple characteristics analysis of torque in permanent magnet synchronous motor for electric vehicles
ZUO Shu guang, LIN Fu, WU Xu dong
Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China
 全文: PDF(1422 KB)   HTML
摘要:

为了分析不同极槽配合和绕组层数永磁同步电机的转矩波动特征,提出一种考虑永磁体磁场非正弦分布和电流谐波的转矩解析计算模型.根据绕组分布推导不同极槽配合(SPC)电机的电枢反应磁场.在气隙磁场求解的基础上,根据麦克斯韦应力张量法获取切向力波,将切向力波沿圆周积分获取电磁转矩.通过有限元法(FEM)和转矩测量实验验证转矩解析模型和波动特性预测的准确性.理论分析和实验结果表明:永磁体磁场非正弦波分布引起6i阶的转矩波动,而电流基频h倍的电流谐波产生1-h阶和6i±(1-h)阶的转矩波动.

Abstract:

An analytical torque model accounting for nonsinusoidal permanent magnet field and current harmonics was presented in order to analyze the characteristics of torque ripple in permanent magnet synchronous motor (PMSM) with different slot pole combinations (SPC) and winding layers. Firstly, armature reaction field of PMSM with different SPC was derived according to the winding distribution. Then, after solving the air gap field, Maxwell stress tensor method was used to obtain the tangential force wave and electromagnetic torque was acquired by integrating the tangential force wave long the circumference. Finally, finite element method (FEM) and experiments were used to validate the analytical model and the prediction of torque ripple frequency. The theoretical analysis and test results showed that 6ith harmonic components of torque ripple were produced by the nonsinusoidal permanent magnet field. (1-h)th and [6i±(1-h)]th harmonic components were produced by current harmonics whose frequencies were h times fundamental current frequency.

出版日期: 2015-10-15
:  TM 301  
基金资助:

国家自然科学基金资助项目(51375343),国家重大科研仪器设备专项资助项目(2012YQ150256);国家“973”重点基础研究发展规划资助项目(2011CB711200).

通讯作者: 吴旭东,男,助理教授.ORCID: 0000 0003 1066 6183.     E-mail: wuxudong@tongji.edu.cn
作者简介: 左曙光(1968-),男,教授,博导,从事汽车振动噪声研究.ORCID: 0000 0002 7403 9341. E-mail: sgzuo@tongji.edu.cn
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引用本文:

左曙光,林福,吴旭东. 车用永磁同步电机转矩解析模型和波动特性分析[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008 973X.2015.09.016.

ZUO Shu guang, LIN Fu, WU Xu dong. Analytical calculation model and ripple characteristics analysis of torque in permanent magnet synchronous motor for electric vehicles. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008 973X.2015.09.016.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008 973X.2015.09.016        http://www.zjujournals.com/eng/CN/Y2015/V49/I9/1731

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