Nonlinear Robust Repetitive Control System for One Class of Undefined Input Saturated Plants

In the present research, with the help of hyperstability criterion in conditions of structural, functional, parametric uncertainty under action of external disturbances, the synthesizing process of nonlinear robust repetitive control system for a nonlinear single-channel plant with input saturation is described. The main feature of this research is the authors’ approach to synthesize the control algorithms. Proposed approach consists of special estimate for V.M. Popov’s integral inequality and the special dynamic switch in synthesized control law. At simulation stage a high operation quality of proposed control system is shown. Obtained results may be useful to construct a repetitive control system for nonlinear input saturated plants with various types of delays and multi-dimensional structure.