Research on Feedback Control Strategy for Disturbance Observation State of Hydraulic Turbine Regulation System Based on LMI
In order to further improve the regulating performance and control accuracy of hydraulic turbine,this paper presents a disturbance observer based state feedback control strategy for the hydro-turbine governor system,which is based on Linear Matrix Inequalities(LMIs).Firstly,a modelling of the hydro-turbine governor system is conducted,and a disturbance observer-based state feedback control strategy based on LMIs is designed.This strategy comprehensively considers the operating state of the hydro-turbine and disturbance observation values.Subsequently,the design and analy-sis of this controller are accomplished using LMIs.To validate the effectiveness and robustness of the proposed control strategy,simulation experiments are conducted.In comparison to traditional control methods,the results demonstrate that the disturbance observer-based state feedback control strategy can effectively enhance the hydro-turbine governor sys-tem's response speed,accuracy,and stability while reducing its sensitivity to disturbances.
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