东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (3): 331-335.DOI: 10.12068/j.issn.1005-3026.2015.03.007

• 信息与控制 • 上一篇    下一篇

基于PMSM扩展PI参考模型的VSI非线性补偿

于子淞1, 王大志1, 高庆忠2   

  1. (1. 东北大学 信息科学与工程学院, 辽宁 沈阳110819; 2. 沈阳工程学院 自动化学院, 辽宁 沈阳110136)
  • 收稿日期:2014-01-23 修回日期:2014-01-23 出版日期:2015-03-15 发布日期:2014-11-07
  • 通讯作者: 于子淞
  • 作者简介:于子淞(1983-),男,辽宁沈阳人,东北大学博士研究生; 王大志(1963-),男,辽宁锦州人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金重点资助项目(61433004).

VSI Nonlinearity Compensation Based on Extended PI Reference Model of PMSM

YU Zi-song1, WANG Da-zhi1, GAO Qing-zhong2   

  1. 1.School of Information Science & Engineering, Northeastern University, Shenyang 110819, China; 2.School of Automation, Shenyang Institute of Engineering, Shenyang 110136, China.
  • Received:2014-01-23 Revised:2014-01-23 Online:2015-03-15 Published:2014-11-07
  • Contact: YU Zi-song
  • About author:-
  • Supported by:
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摘要: 针对永磁同步电动机(PMSM) 中电压源逆变器(VSI)非线性增益会引起输出电压畸变所导致的电流畸变问题,提出了一种新颖的SVPWM-VSI输出电压非线性补偿策略.该方法利用d,q轴PMSM扩展PI参考模型观测器将未知扰动电压分离,再设计非线性补偿器对VSI进行补偿.通过适当的配置PI参数可基本消除因补偿器动态滞后所造成的短暂零电流钳位现象.仿真结果表明,所提方法能够有效补偿VSI非线性输出增益,具有很好的参数鲁棒性,显著降低了电机电流畸变率.

关键词: 永磁同步电动机, 电压源逆变器, 非线性增益, 扩展PI参考模型, 非线性补偿

Abstract: Output voltage distortion due to voltage source inverter (VSI) nonlinear gain in the permanent magnet synchronous motor (PMSM) driving system could result in the current distortion. A new SVPWM-VSI nonlinear compensation strategy was proposed. Extended d,q axis PI reference model of PMSM was investigated to separate the unknown disturbance voltage, and a nonlinear compensator was designed to compensate it. Zero-current-clamping phenomenon could be approximately eliminated by configuring the parameters of PI regulator properly. The parameter robustness and validity of the presented nonlinear compensator was verified by the Matlab/Simulink PMSM driving system simulation.

Key words: PMSM, VSI, nonlinear gain, extended PI reference model, nonlinearity compensation

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