人民长江 ›› 2024, Vol. 55 ›› Issue (9): 10-17.doi: 10.16232/j.cnki.1001-4179.2024.09.002

• • 上一篇    

基于知识库和场景推理的乌江智能化防洪调度

高英   

  • 收稿日期:2023-11-02 出版日期:2024-09-28 发布日期:2024-09-28

Intelligent flood dispatching of Wujiang River based on knowledge base and scenario reasoning

GAO Ying   

  • Received:2023-11-02 Online:2024-09-28 Published:2024-09-28

摘要: 围绕贵州省内乌江流域梯级水库防洪调度问题,开展了基于知识库和快速场景推理的智能防洪优化调度研究。基于海量的防洪调度方案,对调度经验知识进行组织与重构,按照“单元-网络-图谱”的总体思路,构建流域梯级水库群防洪调度知识库。在此基础上,根据流域防洪方案特征确定用于场景匹配的数值类、要素类及模糊类等特征信息,通过计算防洪调度方案各特征信息的权重,基于快速场景匹配与推理技术,优选与目标案例匹配度最高的典型案例,实现了流域智能化防洪调度。以乌江梯级水库群为实例进行的应用分析表明:典型洪水场景下削峰率达47%,模型求解耗时5.3 s,而采用传统动态规划模型的求解耗时为21.1 s,求解效率大幅提高。所提方法解决了传统调度中实时方案计算的时效性问题,且所得方案蕴含调度决策经验,调度过程对实际洪水的变化适应性更强。

关键词: 梯级水库; 防洪调度知识库; 场景推理; 知识图谱; 场景快速匹配; 乌江流域

Abstract: Focusing on the flood dispatching of wujiang cascade Reservoir in Guizhou Province ,a research on intelligent flood dispatching based on knowledge base and rapid scenario reasoning was carried out. First ,based on the calculation of massive operation plans , the operation experience and knowledge were organized and reconstructed. Besides , according to the overall idea of " unit- network-graph " , a preliminary knowledge base for flood dispatching was constructed. On this basis , according to the characteristics of the flood dispatching plans ,the feature information of numerical type ,essential type and fuzzy type used for scene matching was determined. By calculating the weight of each characteristic information of the flood dispatching plan ,and based on fast scene matching and scenario reasoning ,a typical plan with the highest matching degree was selected ,thus the intelligent flood dispatching of basins was implemented. Taking cascade reservoirs on wujiang River as an example , an application analysis was conducted ,revealing that under typical flood scenario ,the peak flow reduction reached 47% . The time taken for solving the scenario was 5.3 seconds using proposed method ,while dynamic programming took 21 . 1 seconds ,demonstrating that the efficiency of the solution was significantly improved. The proposed method can solve the timeliness problem of real - time solution calculation in traditional operation. The proposed solution incorporates scheduling decision -making experience ,making the dispatch process more adaptable to changes in actual flood conditions.

Key words: cascade reservoirs ; knowledge base for flood dispatching ; scenario reasoning ; knowledge graph ; fast scene matc - hing ; Wujiang River Basin