Multivariable Smith Predictors Design for Nonsquare Plants
Multivariable Smith Predictors Design for Nonsquare Plants
复制标题
非方形植物的多变量 Smith 预测器设计
DOI：
10.1109/tcst.2006.880219
复制
发表时间：
2006
影响因子：
4.8
通讯作者：
Chen Lin
中科院分区：
文献类型：
--
作者：
W. Zhang;Chen Lin
本文的目的是为具有多时滞的一般线性稳定对象的解耦多变量Smith预估器的优化设计问题提供一个解决方案。设计过程分为三个步骤。第一步，将被控对象分解为“无时滞”部分和“无时滞”部分，并进一步将“无时滞”部分分解为最小相位部分和非最小相位部分。在第二步中，仅基于输出反馈，利用因式分解解析地得到最优多变量Smith预估器。最后，通过对指定输入的滤波器来形成控制器，并且开发了一个简单的过程来定量地调整以时间域或频域表示的闭环系统响应
The goal of this brief is to provide a solution to the optimal design problem of decoupled multivariable Smith Predictor for general linear stable plants with multiple time delays. The design procedure is divided into three steps. In the first step, a nonsquare plant is factored into the "delay free" part and delay part, and the "delay free" part is further factored into minimum phase part and nonminimum phase part. In the second step, the factorization is utilized to analytically derive the optimal multivariable Smith Predictor based on only output feedback. Finally, the controller is shaped by a filter for specified inputs and a simple procedure is developed to quantitatively tune the closed-loop response expressed in time domain or frequency domain