基于随机径流历时曲线的水库生态调度研究

发布时间：2018-01-28 23:54

本文关键词： 水库生态调度生态流量引汉济渭工程标准化降水指数随机流量历时曲线　出处：《水力发电学报》2017年11期 　论文类型：期刊论文

【摘要】：生态流量过程线使得水库生态调度考虑了径流的年内变化,然而径流的年际变化也是天然径流的重要特征。本文以引汉济渭工程的水库调度为例,利用标准化降水指数将长系列径流数据划分为典型年系列,应用随机径流历时曲线计算了相应典型年系列的生态流量,建立了包含生态流量约束的发电量最大优化调度模型。调度后的多年平均发电量在最小生态流量下为5.14亿k W·h,在适宜生态流量下为5.05亿k W·h,和工程规划的多年平均发电量5.03亿k W·h基本一致。划分典型年径流系列实施水库调度可以反映径流的年际变化。结果显示,在不同典型年基本可满足生态流量的需求,在特定年份来水特枯的情况下不满足生态需求,需要重点关注。
[Abstract]:The ecological flow hydrograph makes the reservoir ecological operation considering the variation of runoff during the year, however, an important feature of the interannual variation of runoff and runoff. Taking the lead Han Ji Wei reservoir project scheduling as an example, using the standardized precipitation index will long series runoff data into typical year series, using random ecological runoff duration curve the corresponding flow calculation of the typical year series, established power flow constraints include ecological optimization scheduling model. After years of scheduling average generating capacity in the minimum ecological flow is 514 million K W h, in the appropriate ecological flow is 505 million K under W h, and the average years of project planning and generating capacity of 503 million K W and H are basically the same. The typical division annual runoff series implementation of reservoir operation can reflect the interannual variations of runoff. The results showed that in different typical years can basically meet the ecological flow demand, in particular years When the water is very dry, it does not meet the ecological needs, and it needs to be paid more attention to.

【作者单位】：西安理工大学水利水电学院西北旱区生态水利工程国家重点实验室培育基地;中国地质大学(武汉)环境学院;
【基金】：水利部公益性行业科研专项项目(201501058) 陕西省自然科学基础研究计划项目(2016JQ5105) 西安理工大学水利水电学院科研项目(2016ZZKT-15)
【分类号】：TV213.4;TV697.1
【正文快照】： 之间的关系后以流量历时曲线为基础提出了评估0引言河流生态完整性的一种定量的方法——生态缺失水利工程的目的是抵御洪水、干旱等自然灾/生态剩余(Ecodeficit/Ecosurplus),并结合了害,为人类提供生产生活用水,发挥水力发电、WEAP模型建立了一个解决生态效益和兴利效益灌溉、

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