电工技术学报2017，Vol.32Issue(9)：24-31,8.
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
Semi-Analytical Model of Vibration and Noise for Permanent Magnet Synchronous Motor Considering Current Harmonics
摘要
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 nethod 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.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Key words
Permanent magnet synchronous motor/electromagnetic force/vibration and noise prediction/current harmonics/semi-analytical model/2-D decomposition分类
信息技术与安全科学引用本文复制引用
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):24-31,8.基金项目
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. （51375343）
