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研究了在水电站供水系统中用小水轮机代替减压阀时水轮机选择及工况稳定问题．在高水头大型水电站中采用小水轮机组作为钢管引水降压设施，将高水头的能量转化为电能送入厂用电网，小水轮机出口保持供水系统所需要的稳定水压，将水输入用水设备；并以某水电站为例加以论述．研究表明，水轮机利用减压供水的方案完全可以作为主供水方案，其运行操作比水泵作为主供水简单可靠．本研究对我国许多高水头电站有实用价值
The selection of turbine and stability of working conditions when using small hydraulic turbine instead of pressure reducing valve in the water supply system of hydropower station were studied. In the high head large hydropower station using small water turbine unit as a steel pipe diversion and depressurization facilities will be high head energy into electricity into the plant grid, small turbine outlet to maintain the water supply system required steady water pressure, the water input water equipment ; And a hydroelectric station as an example to be discussed. The research shows that the scheme that the water turbine uses the decompression water supply can be regarded as the main water supply scheme completely and its operation operation is simpler and reliable than the pump as the main water supply. This study has practical value for many high-head hydropower plants in our country