Stability Analysis and Parameter Design of Virtual-Winding-Based Harmonic Current Controller for Permanent Magnet Synchronous Machines

IF 6.5 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Power Electronics Pub Date : 2025-03-17 DOI:10.1109/TPEL.2025.3534840

Pingyue Song;Lijian Wu;Tao Wang

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Abstract

The multiple synchronous reference frame controller is a common method for harmonic control in permanent magnet synchronous machines (PMSMs), but its low-pass filter deteriorates the harmonic regulation dynamics and system stability. The virtual winding structure, as a novel alternative, can quickly separate each harmonic by vector space decoupling transformation. However, past studies have often assumed that the virtual winding structure does not affect closed-loop system performance or stability. This article constructs the equivalent transfer function of the virtual winding structure of a PMSM under resistance asymmetry. It is revealed that this structure is essentially a special filter. The stability of the closed-loop system is then studied in both continuous and discrete domains. The influence of speed and controller bandwidth on the stability boundary is analyzed. A parameter design method for the harmonic controller is proposed to optimize dynamic response while ensuring system stability. Finally, experimental results show that the theoretical and experimental stability boundaries have an error of less than 4%, validating the accuracy of the stability analysis and the effectiveness of the parameter design.

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基于虚拟绕组的永磁同步电机谐波电流控制器稳定性分析及参数设计

多同步参照系控制器是永磁同步电机谐波控制的常用方法，但其低通滤波器会影响谐波调节的动态特性和系统的稳定性。虚拟绕组结构作为一种新颖的替代方案，可以通过向量空间解耦变换快速分离各谐波。然而，以往的研究往往假设虚拟绕组结构不影响闭环系统的性能或稳定性。本文构造了电阻不对称情况下永磁同步电机虚绕组结构的等效传递函数。结果表明，该结构实质上是一个特殊的滤波器。然后分别在连续和离散域研究了闭环系统的稳定性。分析了速度和控制器带宽对稳定性边界的影响。提出了一种谐波控制器的参数设计方法，在保证系统稳定的同时优化动态响应。最后，实验结果表明，理论稳定性边界和实验稳定性边界的误差小于4%，验证了稳定性分析的准确性和参数设计的有效性。

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来源期刊

IEEE Transactions on Power Electronics 工程技术-工程：电子与电气

CiteScore

15.20

自引率

20.90%

发文量

1099

审稿时长

3 months

期刊介绍： The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.