浊漳河流域水库群多目标生态调度模型研究

Study on Multi-objective Ecological Scheduling Model of Reservoir Group in Zhuozhang River Basin

浊漳河流域水库群生态调度对改善浊漳河流域生态环境质量、满足经济社会需水要求有重要意义。综合考虑生态需水的处理差异,并针对各水库时间上目标的需水差异,提出一种利用分时段加权法处理多目标问题的方法,依据大系统分解协调技术求解了浊漳河流域多目标水库群优化调度模型。模型求解结果表明,在水库的调蓄能力范围内,模型在时间上处理了年际间缺水不平衡的情况,在空间上处理了下游共同承担的生态供水任务,并得出由关河水库承担较多的下游生态供水任务较优。通过模型调度,下游侯壁断面的平均年生态满足度可达到85.35%。研究成果可为流域水库群多目标生态调度提供参考。

The ecological dispatching of reservoir groups in Zhuozhang River Basin is of great significance for improving the ecological environment quality of the Zhuozhang River Basin and meeting the requirements of economic and social water demand.This paper comprehensively considered the differences in the treatment of ecological water demand,and proposed a time-phased weighted method to deal with multi-objective problems in light of the difference in water demand of targets in each reservoir at different times.Based on the large-scale system decomposition-coordination technique,a multi-objective optimization model of reservoir groups operation in Zhuobu River Basin was established.The results show that within the regulation and storage capacity of the reservoir,the model settles the situation of water imbalance shortage during the inter-annual time,resolving the ecological water supply duty jointly shared by the downstream,and therefore concludes that the Guanhe Reservoir bears more downstream ecological water supply duty is preferred.Through dispatching model,the average annual eco-consistency of the downstream Houbi section can reach 85.35%.The research results can provide reference for multi-objective ecological dispatching of reservoir groups in river basins.