| 朱迪,周研来,陈华,郭生练,王俊.考虑分级防洪目标的梯级水库汛控水位调度模型及应用[J].水利学报,2023,54(4):414-425 |
| 考虑分级防洪目标的梯级水库汛控水位调度模型及应用 |
| An operation model of flood control water levels of cascade reservoirs considering grading flood control objectives and its application |
| 投稿时间：2022-05-09 |
| DOI：10.13243/j.cnki.slxb.20220360 |
| 中文关键词: 汛控水位 模拟-优化框架 防洪调度 分级防洪目标 多目标优化 |
| 英文关键词: flood control water level simulation-optimization framework flood control operation grading flood control objective multi-objective optimization |
| 基金项目:国家重点研发计划项目（2021YFC3200303） |
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| 中文摘要: |
| 围绕中小洪水减压、大洪水保安和特大洪水降损等防洪目标，构建了面向分级防洪目标的梯级水库汛控水位优化调度模型，针对不同频率设计洪水，基于“模拟-优化”框架，采用仿生进化算法对调度模型进行了高效求解，并利用熵权法对调度方案进行了多目标评价，比选了梯级水库汛控水位方案。以金沙江中下游6个梯级水库和三峡水库组成的梯级水库为研究对象，研究结果表明：相比原汛限水位方案，在不降低原防洪标准的前提下，选定的方案可使梯级水库水位抬高0.36～6.22 m，发电量增加6.28亿～19.26亿kW·h，增幅为1.18%～4.27%，经济效益显著，可为梯级水库汛控水位的规划设计提供技术支撑。 |
| 英文摘要: |
| Focusing on several flood control objectives including pressure reduction for small and medium floods, security for large floods as well as loss reduction for exceeding standard floods, an optimal operation model of flood control water levels of cascade reservoirs is established for tackling the grading flood control objectives.Based on a "simulation-optimization" framework, the operation model is efficiently solved by a heuristic evolutionary algorithm considering different design flood scenarios.The entropy-based weight method is applied to evaluate the operation schemes and identify the best flood control water levels and reservoir discharge schemes.The six reservoirs located in the lower reaches of the Jinsha River and the Three Gorges Dam (seven cascade reservoirs) were selected as a case study.The results show that compared to the original flood-limited water level schemes, the best schemes could raise the flood control water levels of seven cascade reservoirs by 0.36-6.22 m, thereby increasing the power generation by 0.628-1.926 billion kW·h (improvement rates of 1.18%-4.27%) without reducing the original flood prevention standards and providing technical support for planning and designing flood control water levels of cascade reservoirs. |
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