微特电机 ›› 2019, Vol. 47 ›› Issue (5): 55-58.doi: 1004-7018(2019)05-0055-04

• 驱动控制 • 上一篇    下一篇

基于SVPWM的变频器死区补偿研究

叶为奇1,2,郑明辉1,魏海峰1,2,曾峰2,徐蔚2   

  1. 1. 江苏科技大学,镇江 212003
    2. 常熟瑞特电气股份有限公司,常熟 215500
  • 收稿日期:2018-07-31 出版日期:2019-05-28 发布日期:2019-05-23
  • 作者简介:叶为奇(1993—),男,硕士研究生,研究方向为电机控制。

Research on Dead Time Compensation of Inverter Based on SVPWM

YE Wei-qi1,2,ZHENG Ming-hui1,WEI Hai-feng1,2,Zeng Feng2,Xu Wei2   

  1. 1. Jiangsu University of Science and Technology, Zhenjiang 212003, China
    2. Changshu Ruite Electric Co.,Ltd., Changshu 215500, China
  • Received:2018-07-31 Online:2019-05-28 Published:2019-05-23

摘要:

在结合传统死区补偿方法后,研究了一种补偿矢量合成方法。将理想输出矢量和死区矢量进行矢量合成,并且在软件中将作用分量进行建表查询,列出相应补偿公式。通过MATLAB仿真对比输出电流波形,并在电机实际运行中对振动和噪声数据进行测试列表,通过对比可以看出,该死区补偿对电机的振动和噪声有降低作用。

关键词: 参数对比, 空间矢量脉宽调制, 死区补偿, 振动噪声

Abstract:

After combining the traditional dead-time compensation, a compensation vector synthesis method was studied. By comparing this nonlinear relationship and establishing the corresponding lookup table, the compensation voltage corresponding to the error was obtained by lookup table in software, and the corresponding dead-time compensation setting formula was given. The output current waveform was compared by MATLAB simulation, and the vibration and noise of the motor were compared and verified in actual operation. The results show that the compensation strategy can reduce the vibration and noise caused by the dead zone effect.

Key words: parameter comparison, SVPWM, dead-time compensation, vibration and noise

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