电动车用永磁同步电机的转矩阶次特征分析

马琮淦 左曙光 杨德良何吕昌孟姝 孙庆

振动与冲击 ›› 2013, Vol. 32 ›› Issue (13) : 81-87.

PDF(1343 KB)
PDF(1343 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (13) : 81-87.
论文

电动车用永磁同步电机的转矩阶次特征分析

  • 马琮淦1 左曙光1 杨德良2何吕昌1孟姝1 孙庆1
作者信息 +

Order Feature Analysis of Torque Ripple in Permanent Magnet Synchronous Motor for Electric Vehicle

  • MA Cong-Gan1, ZUO Shu-Guang1,Yang De-Liang2, HE Lv-Chang1, MENG Shu1 SUN Qing1
Author information +
文章历史 +

摘要

针对电动汽车车身阶次振动和车内噪声的主要振源—永磁同步电机的转矩波动,首先通过转矩测量试验测得了电机24阶以内的动态、高阶转矩信号,分析与揭示了永磁同步电机转矩信号的阶次特性现象;为解释该试验现象,从理论上建立了一种考虑非正弦永磁磁场分布、开槽、时间谐波电流的永磁同步电机转矩波动数学模型,获得了谐波转矩的解析解,预测了转矩波动的阶次与频率,进而提出了试验测量动态、高阶转矩信号的转速判据。试验研究和理论研究表明:永磁同步电机的转矩具有明显的阶次波动特征,主要阶次有h-1、2(h-1)、6i+h-1、 6i-h+1阶(h∈N,且由变频器决定;i∈N);h次时间谐波电流将单独引起h-1、2(h-1)阶的转矩波动,h次时间谐波电流、非正弦永磁磁场分布、开槽将共同引起6i+h-1、6i-h+1阶的转矩波动。

Abstract

for torque ripple of permanent magnet synchronous motor (PMSM) which causes the body structure vibration and noise in distributed drive electric vehicle, firstly, the dynamical and high order torque signals of PMSM are measured, whose order features are revealed and analyzed. Then, an analytical model of torque ripple in PMSM considering non-sinusoidal magnetic field distribution and slotting is built. Orders and frequencies of torque ripple are predicted and then the rotate speed criterion for the measurement of dynamical and high order torque signals is presented. Both test study and theoretical study show that torque of PMSM has a feature of order ripple and the main orders are the (h-1) th orders, the 2(h-1) th orders, the (6i+h-1) th orders and the (6i+h-1) th orders(h∈N; i∈N) . The hth order current causes the (h-1) th order and the 2(h-1) th order torque ripple. The hth order current, non-sinusoidal magnetic field distribution and slotting cause the (6i+h-1) th order and the (6i-h+1) th order torque ripple

关键词

电动车 永磁同步电机 高阶转矩波动 阶次分析

Key words

electric vehicle / permanent magnet synchronous motor / high order torque ripple / order analysis

引用本文

导出引用
马琮淦 左曙光 杨德良何吕昌孟姝 孙庆. 电动车用永磁同步电机的转矩阶次特征分析[J]. 振动与冲击, 2013, 32(13): 81-87
MA Cong-Gan;ZUO Shu-Guang;Yang De-Liang;HE Lv-Chang;MENG Shu SUN Qing. Order Feature Analysis of Torque Ripple in Permanent Magnet Synchronous Motor for Electric Vehicle[J]. Journal of Vibration and Shock, 2013, 32(13): 81-87

PDF(1343 KB)

Accesses

Citation

Detail

段落导航
相关文章

/