韦瑞深,严子奇,周祖昊,郑金丽,严登华,丁伟.基于逆序递推的水库分级分期旱限水位确定方法研究[J].中国水利水电科学研究院学报,2022,20(4):343-351 |
基于逆序递推的水库分级分期旱限水位确定方法研究 |
Study on the method of determining the graded and staged drought limited water level of reservoir based on the reverse order recursive algorithm |
投稿时间:2021-10-04 |
DOI:10.13244/j.cnki.jiwhr.20210245 |
中文关键词: 旱限水位 分级分期 逆序递推 抗旱调度 张峰水库 逐月滑动 |
英文关键词:drought limited water level graded and staged reverse order recursive drought-relief operation Zhangfeng Reservoir monthly sliding |
基金项目:国家重点研发计划项目(2021YFC3000205);国家自然科学基金项目(51779270);水利前期计划项目(2019-000011-76-01-000983) |
|
摘要点击次数: 680 |
全文下载次数: 848 |
中文摘要: |
开展水库旱限水位确定技术研究,对于科学指导水库抗旱调度具有重要的意义。因此本文在旱限水位内涵解析的基础上,提出一种水库分级分期旱限水位计算新方法,充分考虑不同的干旱等级、不同行业年内需水过程的差异,采用逆序递推算法得到水库分级分期旱限水位。以山西省张峰水库作为研究对象,计算得到汛期、枯水期、农业灌溉期的旱警水位分别为 756.5 m,756.2 m,754.5 m,旱保水位分别为 735.8 m,730.7 m,728.2 m。通过方法对比分析,发现新的计算方法能够对更多的行业、更长的时段进行供水改善,在指导水库抗旱调度,提升水利工程群干旱防御能力方面具有显著优势。 |
英文摘要: |
Determining the drought limited water level of reservoir is of great significance to scientifically guide the drought-relief operation of reservoir. In this study, based on the connotation of drought limited water level, a new method is proposed to calculate the graded and staged drought limited water level of a reservoir, which uses the reverse order recursive algorithm and fully considers the differences in the annual water demand process of different drought levels and different industries. To verify the feasibility and improvement of this method, drought limited water level of Zhangfeng Reservoir in Shanxi Province was calculated. In the flood season, dry season and agricultural irrigation season, the drought warning water levels are 756.5m, 756.2m and 754.5m respectively, and the drought guaranteed water levels are 735.8m, 730.7m and 728.2m respectively. It is found that the new method can improve water supply in more industries and longer periods, which has significant advantages in guiding the drought-relief operation of reservoirs and enhancing the drought defense ability of water projects. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |
|
|
|