引黄灌区多目标水资源优化配置-调度双层模型

Multi-Objective Water Resources Optimal Allocation and Dispatching Two-Layer Model in Yellow River Diversion Irrigation Area

为合理优化调配水资源,实现灌区综合效益最大化,以赵口引黄灌区二期工程为研究对象,构建多目标水资源优化配置-调度双层模型。采用遗传算法,优化求解得到2030年50%、75%、95%设计频率的灌区各用水户(居民与牲畜、农业、工业、服务业、环卫绿化和河湖生态)最优分配水量及渠系调水方案。研究结果表明:不同设计频率的最优水量分配方案均能满足灌区各用水户发展基本需求,居民与牲畜用水、工业用水、服务业用水均能优先得到满足,农业用水供需比保持在0.76以上;50%、75%、95%设计频率的灌区各渠道引黄水占比分别为46.61%、42.28%和48.58%。

In orderto effectively optimize the allocation of water resources and maximize the overall benefits of the Zhaokou Yellow River Irrigation Area Phase II,this paper established a bi-level multi-objective model for water resources optimization allocation and scheduling modelling.This model employed genetic algorithms to optimize canal water scheduling schemes and the allocation volumes for six water users,in-cluding residential livestock,agriculture,secondary industry,tertiary industry,environmental sanitation and greening,as well as river and lake ecosystems under designed frequencies of 50%,75%,95%in the planning year of 2030.Findings reveal that,at different designed frequencies,the optimal water allocation scheme successfully satisfies the fundamental needs of the diverse water users within the irrigation area.It also ensures adequate water supply for residential livestock,secondary and tertiary industries.Additionally,the agricultural sector maintains a supply-demand ratio exceeding 0.76.Under the different designed frequencies,the proportion of water diverted from the Yellow River by each canal in the irrigation area is 46.61%,42.28%,and 48.58%,respectively.