一种基于PID论域自调整的模糊控制方法  

A New Type of Fuzzy Controller with Self-adjusting Universe of Discourse Based on PID Controller

作　　者：李祖欣[1] 蒋天发[2] 蒋云良[1] 

机构地区：[1]湖州师范学院信息工程学院,湖州313000 [2]中南民族大学计算机科学学院,武汉430073

出　　处：《武汉理工大学学报（交通科学与工程版）》2005年第1期157-159,共3页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：浙江省自然科学基金 (批准号 :M60 3 169);国家民委重点科研项目资助 (批准号 :MZY0 2 0 0 4)

摘　　要：针对以误差、误差的微分和误差的积分组成的线性函数作为输入的模糊控制器存在着模糊推理机规则数取决于单变量的简单划分和控制器设计的自由度减小等因素 ,在规则不变的情况下 ,采用了控制器的论域随输入的变化而自调整的策略 .对大时延被控对象的数值仿真和误差泛函积分评价指标表明 ,所提出的论域自调整的模糊控制器比现有控制器具有更好的动静态性能 .The fuzzy controller based on PID controller that the inputs are consist of linear function by error, integral and derivative have some shortages, such as the rules of the fuzzy mechanism all decided by the error and less freedom of design, etc. Now a new type of fuzzy controller with self-adjusting the universe of discourse based on PID is presented in this paper. The fuzzy inferences mechanism still adopts the original rules. In light of a controlled object of second order long time-lag, the simulation and criteria to evaluate the functions behaviors of the controller proposed have superior performances to other controllers.

关 键 词：模糊控制 PID控制 论域自调整 伸缩因子 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置] TP214.2[自动化与计算机技术—控制科学与工程]