Abstract
The idea of the Smith Predictor, which was originally defined in the s-domain for single-variable time-invariant systems, is extended to multivariable time-varying systems with time delays in the control variables. A new t-domain's predictor is first devised to take the time delay element out of the feedback control loop of the single-variable time-varying system. Next the multivariable time-varying system is decomposed by using the decoupling condition into a set of single-variable systems each of which has the abovementioned predictor. A numerical example is given to explain the design procedure of such a multivariable Smith Predictor and also to demonstrate the considerably improved performance of a multivariable time-varying feedback control system having the multivariable Smith Predictor.
