犍为水库动库容分析及其在梯级联合调度中的应用研究

Study on Application of Dynamic Capacity Analysis of Qianwei Reservoir in Joint Operation of Cascade Stations

介绍了水库动库容的特性及计算方法，通过犍为库区实测断面资料，同时结合库区地形图资料，计算出不同水库水位及入库流量下的水库动库容，并对水库动库容和静库容作了对比分析。在此动库容基础上，选择了三场典型洪水过程进行了犍为梯级联合调度研究，研究表明，当采用动库容进行水库预泄时，由于计入了河道的槽蓄作用，三场典型洪水预泄时间较静库容减少约7.5~20.5h，使成果更接近实际，对工程设计有一定的参考价值。

This paper introduces the characteristics and calculation methods for dynamic capacity of reservoir,com-pares the static capacities with the dynamic capacities under different reservoir levels and inflows based on the ob-served sections and topography of Qianwei reservoir area. The joint operations of cascade stations were studied through three typical floods at Qianwei reservoir,which showed that the expected emptying time of the three typical floods under dynamic capacity are about 7.5~20.5h shorter than the expected time under static capacity due to the river channel storage,which are more closer to the practical emptying time and can be well referenced by similar pro-jects.