ITAE在双容纯时滞系统的研究及仿真  

Research and simulate in ITAE of second order systems with time delay

作　　者：陈伟雄[1] 王钦若[1] 谢森林[1] 

机构地区：[1]广州大学城广东工业大学自动化学院,广州510006

出　　处：《微计算机信息》2008年第13期258-260,共3页Control & Automation

基　　金：广东省粤港重大招标工程专项基金(050013)

摘　　要：长期以来,纯时滞系统就一直是工业过程控制中的难控制对象。而工业过程控制常用的PID算法对这类控制对象难以取得令人满意的控制效果。针对这种情况,本文以ITAE最佳传递函数为目标函数来设计控制器,对于滞后环节,利用一阶Pade近似式来近似。在MATLAB的环境下对系统进行仿真研究,并与单纯PID控制进行比较。以算例证明在纯时滞系统中,根据ITAE最佳传递函数来设计控制器比PID控制具有更良好的动态性能,而且参数整定方法更简单,鲁棒性更好,适合在工程范围内广泛应用。Time delay systems are always hard control plants in the industrial proceeding control. And PID control doesn＇t play well against these plants. In this paper, we take ITAE optimum transfer function as the goal function to design controller. First-order Pade approximation is used to approximate the time delay segment by a rational transfer function. We take pure PID control to com- pare with ITAE control and simulate in the MATLAB. The simulation shows that, in time delay systems, the controller based on I. TAE optimum transfer function has better dynamic characteristics than PID control, and more easily set the parameters, and better robust. So it can be applied to many projects.

关 键 词：纯时滞系统 ITAE PADE 鲁棒性 

分 类 号：TP273.1[自动化与计算机技术—检测技术与自动化装置]