基于多目标的城市给水管网多工况优化设计方法

Multi-condition Optimization Design Method of Urban Water Supply Network Based on Multi-objective

由于传统给水管网优化设计一般采用单目标单工况的优化模型,设计结果往往不具有全局可行性。因此,本文提出基于多目标的城市给水管网多工况优化设计方法。以管网造价最小为经济性目标、节点富余水头最小为可靠性目标,构建城市给水管网的多目标多工况优化设计模型,通过模型求解得到最佳的优化设计方案。应用结果表明,设计方法优化设计后,不仅确保城市给水管网的多工况供水安全稳定,而且减少了水资源浪费,该方法可靠性较高。

Since the traditional optimal design of water supply network generally adopts the optimization model of single objective and single working condition,the design results are often not globally feasible.Therefore,this paper proposes a multi-condition optimization design method of urban water supply network based on multi-objective.Taking the minimum cost of the network as the economic objective and the minimum surplus head of the node as the reliability objective,the multi-objective and multi-condition optimization design model of the urban water supply network is constructed,and the optimal design scheme is obtained by solving the model.The application results show that the optimized design method not only ensures the safety and stability of multi-condition water supply of urban water supply network,but also reduces the waste of water resources.The method has high reliability.