Structured singular value synthesis based low power level steam generator water level controller design

摘要

A Uncertainty kinetic model of feed water value position to steam generator water level plant is built. The derived model can express uncertainty in quantitative manner, including parameter perturbation and unmodeled dynamic due to operation condition change of steam generator and feed water pump. Then a robust controller is designed using the derived model based on structured singular value synthesis method. Robust stability and robust performance of the water control system can be guarantee under parameter perturbation and unmodeled dynamic if suitable performance weight functions are chosen. Simulation result shows that good control performances are obtained under all combinations of steam generator operation condition and feed water pump operation condition.