Novel fuzzy — Smith predictor hybrid scheme for periodic disturbance reduction in linear time delay systems

Abstract

In this study, a modified Smith Predictor based fuzzy disturbance rejection scheme is proposed for short delay processes, and compared with a recent counterpart. For this purpose, Astrom's Smith Predictor and the grey predictor are introduced, a recent disturbance reduction scheme and proposed disturbance reduction scheme are described, and both are simulated with pre-published process parameters. The simulation results are compared, and it has been concluded that the disturbance reduction performance is improved by using proposed scheme.