Graphical design for stability of linear active disturbance rejection control to first order time delay plants
Graphical design for stability of linear active disturbance rejection control to first order time delay plants
复制标题
一阶时滞对象线性自抗扰控制稳定性的图形化设计
DOI：
10.1504/ijscip.2012.050471
复制
发表时间：
2012-11
期刊：
影响因子：
--
通讯作者：
Chen Zengqiang
中科院分区：
文献类型：
--
作者：
Yang Ruiguang;Sun Mingwei;Chen Zengqiang
针对一阶时滞不确定对象，提出了一种线性自抗扰控制(LADRC)方案。得到了稳定的边界，使得调谐过程变得非常容易。该控制器可应用于大时滞对象。系统的不确定性由Kharitonov定理表征，并利用增益-相位裕度测试器方法结合D-划分方法来确定特定的性能边界。分析以图形方式进行，并在参数平面上显式地显示可行域。数值仿真结果表明了该控制器的有效性。
In this paper, a Linear Active Disturbance Rejection Control (LADRC) scheme is presented for the uncertain first order delay time plant. The stable boundary is obtained, which make the tuning process very easy. The controller can be applied to a plant with large time delay. The uncertainty of the system is characterised by the Kharitonov theorem and the gain–phase margin tester approach, combined with the D–partition method, is utilised to determine specific performance boundaries. The analysis is conducted graphically and the feasible regions are explicitly shown in the parameter plane. Numerical simulation is provided to demonstrate the effectiveness of the proposed controller.