电工技术学报  2017, Vol. 32 Issue (9): 24-31    DOI:
电机与电器 |
考虑电流谐波的永磁同步电机电磁振动和噪声半解析模型
林福, 左曙光, 毛钰, 吴双龙, 邓文哲
同济大学新能源汽车工程中心 上海 201804
Semi-Analytical Model of Vibration and Noise for Permanent Magnet Synchronous Motor Considering Current Harmonics
Lin Fu, Zuo Shuguang, Mao Yu, Wu Shuanglong, Deng Wenzhe
Clean Energy Automotive Engineering Center Tongji University Shanghai 201804 China
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摘要 提出了一种永磁同步电机快速半解析计算模型,可以分析常见的电流谐波对振动和噪声的影响,并提高了计算效率。首先通过解析和有限元相结合的方法计算了永磁体磁通密度和气隙比磁导,并建立了考虑任意电流波形的电枢磁通密度的解析模型,通过麦克斯韦应力张量方程计算径向电磁力,与有限元计算的电磁力吻合较好。其次通过二维傅里叶变换得到了特定空间阶数电磁力的频率成分,并基于壳体振动和声辐射模型分别计算了定子表面振动和噪声,计算结果能够反映实测振动噪声的主要峰值和分布。最后分析了电流谐波引起的振动噪声的阶次特征和峰值变化。该文提出的半解析模型为在设计阶段考虑电机的振动和噪声提出了一种有效分析方法。
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林福
左曙光
毛钰
吴双龙
邓文哲
关键词 永磁同步电机电磁力振动和噪声预测电流谐波半解析模型二维分解    
Abstract:This paper proposes a semi-analytical model which can be used to analyze the influence of current harmonics on vibration and noise of permanent magnet synchronous motor(PMSM)and increases calculation efficiency.Firstly,analytical method and finite element(FE)method were combined to calculate permanent magnet field and relative permeance.Analytical model for armature reaction field considering arbitrary current shape was also built and Maxwell stress tensor method was used to calculate radial force density.The result agrees well with the result that getting by FE method.Then,two dimensional(2-D)fast Fourier transform(FFT)was employed to obtain the frequency of specifically spatial order force.The stator surface vibration and noise were predicted in the case of basing on the analytical model of shell vibration and sound radiation.The predicted results were validated by tests and are able to reflect the main vibration/noise peaks and distribution.Finally,the frequency order and peak changes of vibration and noise due to current harmonics were analyzed.The work in this paper can help to analyze the vibration and noise of PMSM efficiently in the design process.
Key wordsPermanent magnet synchronous motor    electromagnetic force    vibration and noise prediction    current harmonics    semi-analytical model    2-D decomposition   
收稿日期: 2016-01-22      出版日期: 2017-05-12
PACS: TM341  
基金资助:国家自然科学基金项目(51375343)和国家重大科学仪器设备开发专项(2012YQ150256)资助
通讯作者: 左曙光 男,1968年生,教授,博士生导师,研究方向为汽车动力学和振动噪声。E-mail:sgzuo@tongji.edu.cn   
作者简介: 林 福 男,1989年生,博士研究生,研究方向为永磁同步电机振动和噪声。E-mail:linfu_911@163.com
引用本文:   
林福, 左曙光, 毛钰, 吴双龙, 邓文哲. 考虑电流谐波的永磁同步电机电磁振动和噪声半解析模型[J]. 电工技术学报, 2017, 32(9): 24-31. Lin Fu, Zuo Shuguang, Mao Yu, Wu Shuanglong, Deng Wenzhe. Semi-Analytical Model of Vibration and Noise for Permanent Magnet Synchronous Motor Considering Current Harmonics. Transactions of China Electrotechnical Society, 2017, 32(9): 24-31.
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https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I9/24