Research on model optimization of electrohydraulic servo system for speed governor of pumped storage water turbine unit

BPA software is mainly used for power system simulation analysis in China Currently. The electro-hydraulic servo system model in the calculation program is established based on the turbine governor electro-hydraulic servo system. Due to the difference between the electro-hydraulic servo system of the water turbine governor and the electro-hydraulic servo system of the steam turbine governor, the above model cannot be fully applicable to the modeling and simulation of water turbine units. An optimized electro-hydraulic servo system model was established by analyzing the actual physical process of the hydraulic turbine governor electro-hydraulic servo system. The operating characteristics of the guide vane of a water turbine governor were tested. The simulation of the guide vane action process was carried out using an optimized model, and the accuracy of the model was verified by comparing it with the measured results.