基于系统协调度模型的汛限水位分期控制OACSTPCD
Staged Control of Flood Limit Water Level Based on System Coordination Degree Model
为协调防洪与兴利的矛盾,提高洪水资源化利用效益,基于改进模糊集方法进行汛期分期,建立系统协调度模型并计算得到汛限水位的动态控制域.以思林水库为例,前、后汛期的汛限水位与发电效益协同贡献度成正比,与防洪风险协同贡献度成反比;为实现系统协调度最大,前、后汛期的汛限水位动态控制域应分别为[435,437]m和[435,438]m,前、后汛期可分别增发电量2 169.907×104、6 509.722×104 kW·h,水资源利用量可分别提高0.716x108、1.079×108 m3.研究成果可提高洪水资源利用效率,为水库安全合理运行提供参考.
To coordinate between flood control and profit promotion and enhance the efficient utilization of flood re-sources,we proposed a stage-based division of flood season using the improved fuzzy set method,and subsequently established a system coordination degree model to calculate the dynamic control domain of flood limit water level.The limit water levels in Silin Reservoir,as an example,in pre-flood season and post-flood season are directly pro-portional to the synergetic contribution degree of power generation benefit,but inversely proportional to the syner-getic contribution degree of flood control risk.To achieve the maximum degree of system coordination,the dynamic control domain of flood limit water level is recommended to be[435,437]m and[435,438]m in pre-flood season and post-flood season,respectively.These recommendations would lead to additional electricity generation of 2 169.907×104 kW·h and 6 509.722×104 kW·h,and an increase in water resources utilization of 0.716×108 m3 and 1.079×108 m3,during the pre-and post-flood seasons,respectively.The findings of this study contribute to im-proved flood resource utilization and offer valuable insights for the safe and reasonable operation of reservoirs.
冯佳宁;李晓英;张琰;张梦仙
河海大学水利水电学院,南京 210098上海水利工程设计研究院,上海 200002
水利科学
汛限水位汛期分期改进模糊集分析法动态控制域系统协调度
flood limited levelflood season stagingimproved fuzzy set analysis methoddynamic control boundsystem coordination degree
《长江科学院院报》 2024 (001)
9-17 / 9
湖南省重大水利科技项目(XSKJ2021000-04);国家重点研发计划项目(2018YFC0407902)
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