Intelligent Control Algorithm of Cloud models and Simulation Research of Superheated Steam Temperature Control

The intelligent controller uses the theory of the fuzzy control, designing a variant dimension cloud model intelligent controller containing a one-dimension cloud model controller to eliminate steady-state error and shows that the cloud controller is simple and easy, directly perceived through the senses, and has strong robustness, better control performance, and good application.

Abstract

For implementing excellent control to nonlinear systems with long time-delay,a new intelligent control algorithm of cloud models was proposed.This algorithm presents the uncertainty reasoning of control rules based on cloud model.It represents a qualitative concept with expected value Ex,entropy En and hyper entropy He,and integrates the fuzziness and randomness of a linguistic concept in a unified way.This model is a new method for transformation between qualitative and quantitative in the knowledge.The intelligent controller uses the theory of the fuzzy control,designing a variant dimension cloud model intelligent controller containing a one-dimension cloud model controller to eliminate steady-state error,which is used for superheated steam temperature control of a supercritical once-though 600MW boiler.It also shows that the cloud controller is simple and easy,directly perceived through the senses,and has strong robustness,better control performance,and good application.