College Engineering, University of Almustansyria/ Baghdad


A simple control scheme with smith predictor connection is proposed in
this paper for time delay higher order systems. The control scheme is
simply integral (I) controller with Proportional Derivative(PD)-Sliding
mode controller(SMC). The initial values for the P,I, and D parameters are
taken from the reduced model of the higher order system. Additional
feedback sliding mode control (FSMC) is also used to reduce the effect of
uncertainty in the prediction time delay values. A number of examples are
tested and compared with other control methods like robust PID controller
with smith predictor and Direct synthesis method with smith predictor to
illustrate the efficient performance for the proposed control scheme.