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探讨水电站水库水电能量转换规律,将水库水体分成长方形水体s1、梯形水体tr、长方形水体s2及三角形水体t4级,利用微元分析法,建立水库水电站发电模型。该发电模型由水体动能、势能、压能和库容压能构成。应用于某梯级水电站的仿真结果表明,模型能有效提高水电站群的年平均发电量,长方形水体s1、梯形水体tr、压力引水管倾角α的合理选择对年平均发电量有很大影响。模型可为未来水电站的运行管理与设计优化提供新的理论支持。
The water and electricity energy conversion rule of reservoir is discussed. The water body of reservoir is divided into rectangular water body s1, trapezoidal water body tr2, rectangular water body s2 and triangular water body t4 grade. The microelectric analysis method is used to establish the power generation model of reservoir hydropower station. The power generation model consists of water body kinetic energy, potential energy, pressure energy and reservoir capacity. The simulation results applied to a cascade hydropower station show that the model can effectively improve the annual average power generation of the hydropower station. The rational choice of the rectangular water body s1, the trapezoidal water body tr and the pressure dip pipe α has a great impact on the average annual power generation. The model can provide new theoretical support for the operation management and design optimization of hydropower stations in the future.