Modified model-compensation ADRC controller and its application in PMSM current loop
Modified model-compensation ADRC controller and its application in PMSM current loop
复制标题
改进模型补偿ADRC控制器及其在PMSM电流环中的应用
DOI：
10.1504/ijmic.2020.113716
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发表时间：
2020-01-01
影响因子：
0.7
通讯作者：
Zhao, Hui
中科院分区：
文献类型：
--
作者：
Gao, Yingning;Huo, Xin;Zhao, Hui
自抗扰控制（ADRC）由于具有不依赖系统模型、抗干扰能力强等优点，在电机控制中得到了广泛的应用。对于永磁同步电机电流环，自抗扰控制器可以对模型耦合和参数变化等不确定性进行估计和补偿。考虑到电流环的总扰动可以由可用的对象特性部分补偿，模型补偿的思想可以应用到ADRC控制器中。然而，在传统的模型补偿方法中，电流反馈环中的滤波器环节通常被忽略。因此，本文提出了一种改进的模型补偿自抗扰电流控制策略，并考虑了滤波环节的影响。仿真和实验结果表明，该控制策略具有较好的电流跟踪性能。
Active disturbance rejection control (ADRC) is now widely applied in motor drives due to its advantages like independence of system models and better disturbance rejection ability. For the current loop of permanent magnet synchronous motor (PMSM), the uncertainties like model coupling and parameter variation can be estimated and compensated by ADRC. Considering that the total disturbance of current loop can be partially compensated by available plant characteristics, the idea of model compensation can be applied to ADRC controller. However, the filter link in the current feedback loop is usually ignored in the conventional model compensation approach. Therefore, a modified model-compensation ADRC current control strategy is proposed with the filter link effect considered in this paper. Simulation and experimental results show that better current tracking performance is achieved by the proposed control strategy.