The Acquisition Of Fuzzy Control Rules In The Fuzzy PID Control

Along with the complication of modern industrial process, and theincrease of nonlinearity, uncertainty and complexity during thepractical production processes, the conventional PID controller canno longer meet our requirement,therefore, some advanced intelligentcontrol methods developed in recent years have been applied in thePID control field.Fuzzy control has become the most active and fruitful field inthe study ofIntelligent Automatic Control ,in which Fuzzy PID controlnot only plays a veryimportant role, but also will be one of maintechnology in future research and applications.Clearly, in the Fuzzy PID control process, the extraction ofFuzzy control rules is the key and difficult problem.At present, dueto difficulties in field data collection,existence of errors andother reasons,most of fuzzy control rules are by the designer orresearcher on the basis of the prior knowledge and practicalexperience through analysis, synthesis and summary methods derivedwith weaknesses of incompleteness and strong subjectivity,at the sametime, the derivation and extraction process of Fuzzy control rules ingeneral engineering and technical personnel are moredifficult,Therefore, the design of a common fuzzy control ruleextraction method is very meaningful.In this paper, to study theissue.