关键词: 滩坑水电站, 水能利用率, 防汛, 优化调度

Abstract: Based on the application of "multi time scale and multi mode coordinated optimal operation of Tankeng reservoir" and combined with the problems in actual operation, it is revealed that the core of improving power generation efficiency of a hydropower station is to increase the operating head and find the balance between high water level operation and water abandoning risk. Moreover, the curve of water consumption per kW·h is introduced. When making the operation plan, the long, medium and short term meteorological information should be considered comprehensively to reduce the water abandoning risk, increase the power generation efficiency, alleviate the contradiction between reservoir water storage and flood control, and prevent the water level from being too low in dry years, which would affect the function of peak load regulation and frequency modulation of a power station in the power grid.

Key words: Tankeng hydropower station, water energy utilization rate, flood control, optimal operation