| 基于PMSM扩展PI参考模型的VSI非线性补偿 |
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| 引用本文： | 于子淞,王大志,高庆忠.基于PMSM扩展PI参考模型的VSI非线性补偿[J].东北大学学报(自然科学版),2015,36(3):331-335. |
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| 作者姓名： | 于子淞 王大志 高庆忠 |
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| 作者单位： | (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) |
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| 基金项目： | 国家自然科学基金重点资助项目(61433004) |
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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.
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| 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 |
VSI Nonlinearity Compensation Based on Extended PI Reference Model of PMSM |
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| YU Zi-song
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WANG Da-zhi
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GAO Qing-zhong.VSI Nonlinearity Compensation Based on Extended PI Reference Model of PMSM[J].Journal of Northeastern University(Natural Science),2015,36(3):331-335. |
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| Authors: | YU Zi-song WANG Da-zhi GAO Qing-zhong |
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| Institution: | 1.School of Information Science & Engineering， Northeastern University， Shenyang 110819， China; 2.School of Automation， Shenyang Institute of Engineering， Shenyang 110136， China. |
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| 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. |
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| Keywords: | PMSM VSI nonlinear gain extended PI reference model nonlinearity compensation |
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