INSTRUMENTAL ENVIRONMENT FOR HYDRO GENERATOR NONLINEAR MODELING AND MULTIPLE-MODEL ADAPTIVE CONTROL

An advanced hybrid instrumental environment for hydro generator nonlinear modeling and control is presented in this paper. It consists of a SIMULINK nonlinear plant model and a programmable logical controller (PLC) with proper data acquisition hardware. A multiple-model adaptive control strategy is applied to achieve the desired behavior for control systems with complex nonlinear dynamics. The plant control is determined as a weighted sum of the output signals of particular controllers designed on the predictive error for each models. The multiple-model adaptive control strategy is implemented in software environment of VIPA 313SC controller. A proper SCADA system is developed. The pseudo-parallel control law is designed and applied on the SIMULINK built nonlinear plant model. Laboratory simulations with varying load conditions closed to the practice are carried out in order to explore the system performance.