In this study, a novel simulation-optimization model for the optimal flood control of the cascade barrage network was proposed by combining a simulation-based optimization method with a one-dimensional flood numerical analysis method. The simulation-based optimization method determines the optimal operation rules of cascade barrages, including the pre-discharge stage algorithm and the main-discharge stage algorithm for the securement of flood control storage and the establishment of a minimal discharge plan. The optimal operation rules describe the detailed operation process of barrage floodgates including full and partial opening and provide the upper and downstream boundary conditions for the flood numerical analysis method, which evaluate the flood propagation in the river channel between barrages. The proposed model was applied to the flood control of the six-cascade barrage network in the Taedong River, Democratic People’s Republic of Korea, and its effectiveness was verified in comparison with a well-known PSO-optimization method. The results show that the proposed model is superior to the existing other method and practically applicable to the flood control in the rivers with cascade barrage network.

本文将基于仿真的优化方法与一维洪水数值分析方法相结合，提出了一种用于级联拦河网最优洪水控制的仿真优化模型。基于仿真的优化方法确定了梯级拦河坝的最优运行规律，包括用于防洪保管和建立最小排放计划的预泄水阶段算法和主泄水阶段算法。最优操作规则描述了包括全开和部分打开的拦河坝闸门的详细运行过程，并为洪水数值分析方法提供了上，下游边界条件，从而评估了洪水在拦河坝之间河道中的传播。将该模型应用于朝鲜民主主义人民共和国大同江六梯级拦河坝网的防洪，并与著名的PSO优化方法进行了比较验证了其有效性。结果表明，所提出的模型优于现有的其他方法，可实际应用于具有梯级拦河网的河流防洪中。