一类基于PID控制的新型模糊控制方法

研究了一类基于模糊规则的变参数 PID控制方法 .对于模型未知对象 ,常规 PID控制器参数的调节一般要基于一些语言信息的经验知识 ,这对 PID参数的调节带来一定的困难 .模糊控制在处理语言信息方面具有一定的优势 ,因此将模糊控制和 PID控制方法相结合组成一种复合控制器的设计是可行的 .采用 TS模糊模型 ,给出了一类给予模糊规则的变参数 PID控制器的设计 .这种控制方法兼备模糊控制与 PID控制优点 ,具有广泛的应用价值

New Type of Parameters-Varying PID Control Based on Fuzzy Rules

The design of a new type of parameters- varying PID controller based on fuzzy rules was present- ed.For unknown systems,the PID controllers can be designed through some classical tuning technique ( Ziegler- Nichols,Kalman,etc) .The refining of the PID parameters is often based on experience ex- pressed in linguistic form.This approach assumes that we can design a fuzzy controller by use of this lin- guistic information.Based on TS ( Takagi- Sugeno) model,a type of fuzzy PID controller ( TS- PID) was given.The TS- PID controller takes the advantages of both fuzzy controller and PID controller,whose po- tential application is great.The simulation results illustrate good qualities of this type of fuzzy controller.