永磁同步电机永磁磁链自适应观测器设计方法

发布时间：2018-07-12 10:41

本文选题：永磁同步电机 + 在线监测　；参考：《中国电机工程学报》2015年09期

【摘要】：为了实现永磁同步电机永磁体的在线监测,提出了一种永磁磁链自适应观测器的设计方法。首先,利用波波夫超稳定性定理,构建了永磁磁链自适应观测器,保证了观测器的稳定性。然后,在分析各参数误差对观测结果影响的基础上,提出了一种反馈增益的设计方法,该方法可以降低观测器对电机参数精度的依赖。通过分析观测器闭环极点的分布,优化了自适应律PI参数,拓宽了观测器稳定区域,提高了观测器的收敛性能。该方法能够准确的观测出永磁磁链,对电机参数的精度敏感性较低。通过对一台20?k W电机进行试验验证,实验结果证明了该设计方法的有效性。
[Abstract]:In order to realize the on-line monitoring of permanent magnet synchronous motor (PMSM), a design method of permanent magnet flux adaptive observer (PMSO) is proposed. Firstly, a permanent magnet flux adaptive observer is constructed by using the wave hyperstability theorem to ensure the stability of the observer. Then, a feedback gain design method is proposed based on the analysis of the effect of the parameters error on the observation results. This method can reduce the dependence of the observer on the precision of the motor parameters. By analyzing the distribution of the closed-loop poles of the observer, the Pi parameters of the adaptive law are optimized, the stable region of the observer is widened, and the convergence performance of the observer is improved. This method can accurately observe the permanent magnetic flux, and has low sensitivity to the precision of motor parameters. The experimental results of a 20kW motor show that the design method is effective.
【作者单位】：中国科学院电工研究所;中国科学院大学;中国科学院电力电子与电气驱动重点实验室(电工研究所);电驱动系统大功率电力电子器件封装技术北京市工程实验室;
【基金】：国家自然科学基金重点项目(61034007-2)~~
【分类号】：TM341

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