龙滩水电站防洪发电优化调度研究

发布时间：2018-02-11 01:32

本文关键词： 龙滩水电站防洪优化调度发电优化调度生态需水　出处：《广西大学》2015年硕士论文　论文类型：学位论文

【摘要】：龙滩水库的防洪优化调度直接关系到红水河的洪水削峰效果,同时关系到西江流域的防洪安全。具有年调节能力的龙滩水电站对红水河梯级电站以及珠江的水电补偿调节有重大作用。为了更好的发挥龙滩水电站在红水河流域关键工程的作用,针对龙滩水电站进行防洪和发电的优化调度。本文选取红水河上的龙滩水电站为研究对象开展了以下工作：在分析红水河洪水特征以及龙滩水库防洪目标、调度规则的基础上,以2008年的洪水为分析对象,根据梧州水文站洪峰同倍比放大推求设计洪水过程线,以梧州站最大削峰为目标,建立龙滩水库建立防洪优化调度模型,采用粒子群算法进行求解。应用马斯京根法进行河道演算,把龙滩的下泄流量演算到迁江站和梧州站,分析防洪优化调度的效果。结果显示：通过龙滩水库的防洪优化调度,迁江站以及梧州站的洪峰能达到一定的削减效果。以发电量最大为目标,建立发电优化调度模型,采用DP算法对模型进行求解。运用逐月最小生态流量以及逐月适宜频率流量方法计算红水河基本生态流量,采用Tennant法对计算结果进行检验,选取逐月最小生态流量作为发电优化调度中生态方案的约束条件。对比实际的调度模式与两种发电优化调度方案,并进行分析。结果显示：平水年及丰水年采用最小生态需水约束的方案,对于水电站的经济效益几乎没有影响,枯水年该方案会减少0.020%的发电量；2008年的两种优化方案与实际的调度结果相比,优化方案能获得更多的发电量,且最小生态需水约束方案能满足5-7月份河道的基本生态需求。
[Abstract]:Longtan Reservoir flood control scheduling is directly related to the Red River flood peak effect, while related to the Xijiang River Basin flood control safety. With annual adjustment ability of Longtan Hydropower Station on the Red River and the Pearl River Power Plant cascade hydropower compensation regulation has a significant role. In order to better play in the Red River Basin key project the role of Longtan hydropower, flood control and power generation scheduling optimization for Longtan Hydropower Station. This paper selects the Longtan Hydropower Station on the Red River as the research object to carry out the following work: in the analysis of the Red River flood characteristics and flood control of Longtan Reservoir, based on the scheduling rules, with the flood of 2008 as the analysis object, according to the peak compared to enlarge design flood process line of Wuzhou hydrological station in Wuzhou Railway Station, maximum peak as the goal, the establishment of the establishment of Longtan Reservoir flood optimal scheduling model, using particle swarm algorithm The solving method. Application of Muskingum river discharge calculation, the calculation of Longtan to Qianjiang station and the Wuzhou Railway Station, the effect analysis of flood optimal scheduling. The results show that the optimal flood dispatching of Longtan Reservoir, Qianjiang station and Wuzhou Railway Station peak can be reduced to some extent. The effect of cutting capacity as the objective establish, generation scheduling model, DP algorithm is used to solve the model. Using the monthly minimum ecological flow and monthly frequency flow calculation method suitable basic ecological flow of Red River, using the Tennant method to verify the calculation results, select the monthly minimum ecological flow as the constraint of power optimization scheduling. The scheduling scheme of ecological mode and two power generation optimal scheduling scheme compared to the actual, and carries on the analysis. The results showed: the water level years and wet years the minimum ecological water requirement constraint scheme for water and electricity Almost no influence of the economical benefit, dry years the project will reduce the generating capacity of 0.020%; compared to two optimization schemes in 2008 and the actual scheduling results, optimization scheme can obtain more power output, and the minimum ecological water requirement constraint scheme can meet the 5-7 month River basic ecological demand.

【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TV737

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