Smith Predictor with Simple Control Scheme for Higher Order Systems

Abstract

A simple control scheme with smith predictor connection is proposed inthis paper for time delay higher order systems. The control scheme issimply integral (I) controller with Proportional Derivative(PD)-Slidingmode controller(SMC). The initial values for the P,I, and D parameters aretaken from the reduced model of the higher order system. Additionalfeedback sliding mode control (FSMC) is also used to reduce the effect ofuncertainty in the prediction time delay values. A number of examples aretested and compared with other control methods like robust PID controllerwith smith predictor and Direct synthesis method with smith predictor toillustrate the efficient performance for the proposed control scheme.