基于水库防洪预报调度图的洪水资源化方法

Floodwater resources utilization based on flood forecast information of reservoir operation chart

为有效调节利用洪水资源,探讨以水库防洪预报调度为途径的洪水资源化方法,在分析水库调洪过程和洪水过程特性的基础上,拟定了基于3 h预报信息的水库防洪预报调度图,并以安康水库为例,采用模拟结合遗传算法进行优化计算,绘制了安康水库以洪水资源化为目标的防洪预报调度图,通过对其应用并与常规洪水调度过程进行对比分析表明,预报调度的调洪结果在消减洪峰和抬高调洪末水位两个目标上明显优于常规调度。

To improve the floodwater resources utilization by the reservoir operation and the researching reservoir flood regulation method considering rainfall and runoff forecast information, an operation chart for reservoir flood control is put forward by using 3-hour flood forecast information on the basis of analyzing flood course and reservoir flood control characteristics. Furthermore, taking Ankang reservoir for example, the optimum computation is carried and the operation chart is studied for the purpose of floodwater resources utilization by combining the improved genetic algorithm with the flood routing simulation. By comparing its application with the conventional flood control scheme, the result indicates that the former has apparent advantages in flood peak cutting and water storage at the end of flood regulation, which proves the validity and the advantage of the optimized operation chart.