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/H∞ control. Simulation results for a nonlinear dynamic model of entire hydropower plant are presented and compared to those from the classical linear proportional-integral (PI) controller. A novel two-stage scheme for the nonlinear controller design with integral feedback is presented for a fast transient response and zero steady-state error.

Issue Section:
Technical Brief
Topics:
Control equipment, Design, Feedback, Hydroelectric power stations, Simulation results, Sliding mode control, State feedback, Steady state, Errors, Dynamic models, Stress

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