A Comparative Study of Fuzzy Logic and Classical Control with EPICS*

J. Tang, H. Shoaee

CEBAF, Newport News, VA


The classical control theory which relies on the mathematical model of the underlying system has been successfully applied to the control of a large variety of simple, non-linear processes. However, it has not been as widely used with complicated, non-linear, time varying systems as well as with processes suffering from noisy measurements. The main idea of fuzzy control is to build a model of an expert operator who is capable of controlling the plant without thinking in terms of a mathematical model. This paper describes the application of fuzzy control to a feedback system within an EPICS environment. Comparison of application of a classical controller and a fuzzy controller to an inverted pendulum problem is presented.

*Supported by U. S. DOE contract DE-AC05-84ER40150.