Experimental Research on Stability of Hydro-Mechanical-Electrical System in Hydropower Station

Based on experimental simulation and numerical analysis, the effect of operation condition and load characteristic on unitpsilas stability is further investigated in detail. An experimental system of single-unit and single-pipe hydropower station is designed and built including a simulated water pumping system (dynamic load) and a resistance (static load). Stability experiment research and further analysis is performed under two realized typical conditions that is grid interconnection operation or isolated operation. The experimental results indicate that, impact of large power grid is beneficial to operation stability, and regulation performance of unit running with dynamic load is superior to that of static load. Moreover, the solution and dynamic curves gained by experimental research is identical with that of further numerical analysis.