Hydropower Plant Frequency Control Via Feedback Linearization and Sliding Mode Control

Abstract

This paper presents a new nonlinear controller design approach for a hydraulic power plant focusing on load frequency control aspect. It is based on input state feedback linearization and sliding mode/Hâˆ‍ control. Simulation results for a nonlinear dynamic model of entire hydropower plant are presented and compared to those from the classical linear proportionalintegral (PI) controller. A novel twostage scheme for the nonlinear controller design with integral feedback is presented for a fast transient response and zero steadystate error.