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时间:2020-03-25
《年调节水库水电站分级发电调度图研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、水利水电技术第45卷2014年第8期年调节水库水电站分级发电调度图研究李雅琴1,钟平安1⋯,王玉华2(1.河海大学水文水资源学院,江苏南京210098;2.中国长江三峡集团公司,湖北宜昌443133;3.水资源高效利用与工程安全国家工程研究中心,江苏南京210098)摘要:为了减少汛期弃水,提高水资源利用率,提升水电站经济运行效益,本文在双保证出力调度图制作的基础上提出进一步改进方法。考虑来水量级差异将径流系列分成丰、平、枯三组,提出汛期指示出力的概念和计算方法,绘制分级调度图,以结合定性中长期预报来指导水电站调度运行。以安砂水电站为背景进行实证分析,计
2、算结果表明:按年径流分组绘制的分级调度图操作,结果均优于分别按传统调度图、双保证出力调度图和按汛期径流分组绘制的分级调度图操作的计算结果。因此,按年径流分组绘制的分级调度图具有更好的应用价值。关键词:分级调度图;多年平均发电量;来水量级;汛期指示出力;安砂水电站中图分类号:TV697.1+1文献标识码:A文章编号:1000.0860(2014)08—0134-04StudyonhierarchicalhydropoweroperationgraphwithayearlyregulationreservoirLIYaqin91,ZHONGPing’anl”
3、,WANGYuhua2(1.CollegeofHydrologyandWaterResources,HohaiUniversity,Naming210098,Jiangsu,China;2.ChinaThreeGorgesCorporation,Yichang443133,Hubei,China;3.NationalEngineeringResearchCenterofWaterResourcesEfficientUtilizationandEngineeringSafety,Nanjing210098,Jiangsu,China)Abstract:In
4、ordertoreducetheabandonedwaterduringfloodseasonandenhanceboththeutilizationefficiencyofwaterresourcesandtheoperationsbenefit,afurtherimpmvodmethodisputforwardhereinonthebasisofthedoubleguaranteedoutputhydropoweroperationgraph.Firstly,undertheconsiderationofthewaterleveldifference
5、,therunoffseriesistobedividedintothreegroups,i.e.abundant,normalandary,secondly,theconceptandcalculatingmethodfortheindicatingoutputduringfloodseasonarepro-posed,andlast,ahierarchicaldispatchingoperationgraphismadeaswell,whichcouldhaveacombinationwiththequalitativemid—longtermfor
6、ecasting.Then,ademonstrativeanalysisismadebytakingAnshaHydropowerStationasthestudycaseandthecalculationresultsshowthatifitisoperatedwiththehierarchicalhydropoweroperationgraphmadebytheannualrunoffelassifiea-tion,theresultsarebetterthanthatwiththeconventionaldispatchingoperationgr
7、aph,thedoubleguaranteedoutputdispatchingop—erationgraphandthehierarchicalhydropoweroperationgraphmadebythefloodseasonrunoffclassificationrespectively.Therefore,thehierarchicalhydropoweroperationgraphmadebytheannualrunoffclassificationhasabetterapplicationvalue.Keywords:hierarchic
8、alhydropoweroperationgraph;averageannual
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