哈尔滨工程大学学报2025，Vol.46Issue(4)：727-736,10.DOI:10.11990/jheu.202311011
考虑电流谐波的永磁同步电机电磁振动与转矩波动分析
Analysis of electromagnetic vibration and torque ripple of permanent magnet synchronous motors considering current harmonics
摘要
Abstract
Aiming to analyze the electromagnetic vibration problem under harmonic current input,an analytical model of the magnetic field under full-frequency harmonic current input is established using a current analytical model and conformal mapping.The space-time characteristics of the air-gap magnetic field,two-dimensional elec-tromagnetic force,and torque are investigated,along with the effect of switching frequency on vibration.First,an analytical model of full-frequency harmonic current is established based on the motor simulation model and meas-ured current.Then,the analytical model of the magnetic field is derived,and the distribution of the air-gap mag-netic field under high-frequency harmonic current input is analyzed.Finally,vibration response simulations and ex-periments of the prototype are performed,and vibration reduction measures are proposed.The results show that the analytical model reveals a comprehensive view of electromagnetic waves,electromagnetic torque,and their sources.High-frequency electromagnetic force comprises three parts.The order of non-zero minimum space remains consist-ent across different working conditions.A vibration avoidance strategy based on electromagnetic force distribution effectively reduces the electromagnetic vibration level.This model provides an effective method for high-frequency vibration reduction.关键词
电磁力波/振动响应/永磁同步电机/电磁转矩/振动抑制/高频谐波/磁场模型/开关频率Key words
electromagnetic force/vibration response/permanent magnet synchronous motors/electromagnetic torque/vibration suppression/high-frequency harmonic/magnetic field model/switching frequency引用本文复制引用
魏琦,邱威森,率志君,李玩幽,曾德鹏..考虑电流谐波的永磁同步电机电磁振动与转矩波动分析[J].哈尔滨工程大学学报,2025,46(4):727-736,10.基金项目
国家自然科学基金项目(52107040). （52107040）
