一类时滞系统的Fuzzy-PI-Smith控制方法  

Study on Fuzzy-PI-Smith Controller for a Class of System with Time-delay

作　　者：张涛[1] 韩志敏[1] 

机构地区：[1]大连民族学院机电信息工程学院,辽宁大连116605

出　　处：《大连民族学院学报》2008年第3期234-236,共3页Journal of Dalian Nationalities University

基　　金：大连民族学院博士科研启动基金资助项目(20076104)

摘　　要：为了解决Smith预估器当系统参数发生变化时鲁棒性差的缺点,将Fuzzy控制器和Smith预估器二者结合起来,并在模糊控制器中加入PI控制器来消除系统的稳态误差,从而给出了一类时滞系统的Fuzzy-PI-Smith控制方法。通过仿真研究可以看出,设计的控制器具有较好的稳态和动态性能。In order to improve the weak robustness of the Smith predictor, a fuzzy controller was integrated with Smith predicator, and a PI controller was introduced to avoid the steady - state error, thus a Fuzzy - PI - Smith controller for a class of system with time - delay was proposed. Through the simulation experiments, we found that the better steady and dynamic performance could be obtained by the proposed controller.

关 键 词：时滞系统 模糊控制 SMITH预估控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]