Design of Self-Tuning Regulator for Large-Scale Interconnected Hammerstein Systems

Abstract EN

This paper deals with the self-tuning regulator for large-scale stochastic nonlinear systems, which are composed of several interconnected nonlinear monovariable subsystems.

Each interconnected subsystem is described by discrete Hammerstein model with unknown and time-varying parameters.

This self-tuning control is developed on the basis of the minimum variance approach and is combined by a recursive algorithm in the estimation step.

The parametric estimation step is performed on the basis of the prediction error method and the least-squares techniques.

Simulation results of the proposed self-tuning regulator for two interconnected nonlinear hydraulic systems show the reliability and effectiveness of the developed method.