水能计算是规划设计的基础,其计算方法一般用统计法和时历法。但低水头迳流式电站的水能计算有其独特的地方:如库区有控制淹没条件时,需根据来水流量大小变动坝前运行水位;由于流量加大导致水头降低,使流量与出力呈非单值的函 Water energy calculation is the basis of planning and design, and its calculation methods generally use statistical method and calendar method. However, the calculation of the water energy of a low-head hydropower station has its unique place: if there are control flooding conditions in the reservoir area, the water level in front of the dam should be changed according to the size of the incoming water flow; the water head decreases due to the increased flow rate, Non-single value of the letter