Two-Degree-of-Freedom Active Disturbance Rejection Current Control for Permanent Magnet Synchronous Motors
Two-Degree-of-Freedom Active Disturbance Rejection Current Control for Permanent Magnet Synchronous Motors
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DOI：
10.1109/tpel.2022.3220565
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发表时间：
2023-03
影响因子：
6.7
通讯作者：
Shiyu Lin;Yanfei Cao;Chen Li;Zhiqiang Wang;T. Shi;C. Xia
中科院分区：
文献类型：
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作者：
Shiyu Lin;Yanfei Cao;Chen Li;Zhiqiang Wang;T. Shi;C. Xia
在永磁同步电机控制中，自抗扰控制（ADRC）由于其固有的抗干扰能力而受到广泛关注。然而，现有的ADRC方法存在参考跟踪性能和干扰抑制性能耦合的问题。为了同时提高电流控制的动态响应速度和稳态控制精度，本文提出了一种基于改进扩张状态观测器（IESO）的二自由度自抗扰电流控制方法。首先，所设计的IESO取消了观测电流更新律中的误差校正项，实现了参考跟踪性能和干扰抑制性能的完全解耦。在解耦结构下，IESO的观测扰动更新律被设计为比例-积分-重复控制结构，以抑制周期和非周期扰动。然后，通过分析特征根的分布证明了系统的稳定性，并给出了IESO的两步参数整定准则。该方法实现了参考跟踪性能和扰动抑制性能的完全解耦，降低了控制器参数选择的复杂性，有利于高性能电流控制的实现。最后通过实验验证了该方法的有效性。
In the control of permanent magnet synchronous motors, the active disturbance rejection control (ADRC) has attracted considerable attention due to its intrinsic ability for disturbance rejection. However, the existing ADRC methods have the problem of coupling the reference tracking performance and disturbance suppression performance. To simultaneously improve the current control's dynamic response speed and steady-state control accuracy, a two-degree-of-freedom ADRC current control method based on the improved extended state observer (IESO) is proposed in this article. First, the designed IESO cancels the error correction term in the observed current update law to realize the complete decoupling of the reference tracking performance and disturbance suppression performance. Under the decoupling structure, the observed disturbance update law of the IESO is designed as a proportional-integral-repetitive control structure to suppress periodic and aperiodic disturbances. Then, the system stability is proved by analyzing the distribution of characteristic roots, and a two-step parameter tuning guideline of the IESO is provided. The proposed method realizes the complete decoupling of the reference tracking performance and disturbance suppression performance, reducing the complexity of the controller parameter selection and facilitating the realization of the high-performance current control. Finally, the effectiveness of the proposed method is validated by experimental results.