控制理论(社会学)
惯性
扰动(地质)
PID控制器
控制器(灌溉)
控制工程
离散化
观察员(物理)
扭矩
电子速度控制
工程类
计算机科学
数学
控制(管理)
物理
温度控制
电气工程
热力学
数学分析
生物
古生物学
人工智能
经典力学
量子力学
农学
作者
Ying Fan,Junlei Chen,Qiushi Zhang,Ming Cheng
标识
DOI:10.1109/tpel.2022.3218842
摘要
In this article, an improved inertia disturbance suppression method is proposed for permanent magnet synchronous motor (PMSM) based on disturbance observer and two-degree-of-freedom PI controller (DOB-2DoFC). The DOB-2DoFC is proposed to enhance the speed control performance with variation of inertia caused by load changing. The traditional two-degree-of-freedom controller (2DoFC) is first introduced and the influence of inertia disturbance on 2DoFC is analyzed. Then, the disturbance observer (DOB) is designed to combine with 2DoFC for inertia disturbance suppression. Furthermore, the discretization of DOB-2DoFC is implemented and the impact of discretization is also analyzed, in the meanwhile, the parameters of DOB- 2DoFC is designed based on the premise of stability and good speed control performance. With the designed parameters, better speed control performance can be maintained without tuning any controller coefficients even when the actual inertia is 20 times the controller inertia. Finally, the effectiveness and the correctness of the proposed DOB-2DoFC are verified with experiments on a 400 W PMSM drive platform in two modes.
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