水力模型在复杂工况下原水泵站优化调度中的应用

Application of Hydraulic Model in Optimal Scheduling of Raw Water Pumping Station under Complex Conditions

笔者以中部某城市原水取水泵站改造项目为例,介绍了基于供水管网水力模型在多目标和复杂工况下泵站设计选型和优化调度上的应用。在建模技巧上采用“水池 + 出水节点”的形式模拟水厂进水,将流量驱动模型转化为压力驱动模型,实现了原水泵站不同工况对多水厂进水流量的影响评估。通过优化后的供水管网水力模型,在设计上解决了诸如多水厂进水分配的边界条件问题、定速泵和调速泵能耗效果分析、泵站场地设计标高确定问题和不同用水规模情况下的泵站优化调度问题。

The author takes the reconstruction project of the raw water intake pumping station in the central city A city as an example, and introduces the application of the hydraulic model of the water supply network in the design selection and optimal scheduling of the pumping station under multi-objec- tive and complex working conditions. In terms of modeling skills, the form of “pool + water outlet node” is used to simulate the water inflow of the water plant, and the flow-driven model is con-verted into a pressure-driven model, so as to realize the impact assessment of the different water supply pressure of the original pumping station on the distribution of water inflow in multiple wa-ter plants. Through the optimized hydraulic model of the water supply network, the boundary con-ditions of the influent water distribution in multiple water plants that are sensitive to influent pressure, the analysis and selection of the energy consumption effect of the fixed-speed pump and the speed-regulating pump, and the design elevation of the pumping station site are solved in the design. Identify the problem. In pumping station scheduling, the optimal scheduling decision-making problem of pumping stations under different water consumption scales is determined.