欢迎来到天天文库
浏览记录
ID:52425079
大小:499.67 KB
页数:7页
时间:2020-03-27
《水库群优化调度模型求解加速策略研究.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、西安理工大学学报JournalofXi’anUniversityofTechnology(2O16)Vo1.32No.163DOI110.19322/j.cnki.issn.1006—4710.2016.Ol_012水库群优化调度模型求解加速策略研究明波,黄强,王义民,刘登峰,管剑(西安理工大学西北旱区生态水利工程国家重点实验室培育基地,陕西西安710048)摘要:针对传统水库群调度模型求解计算耗时较长的缺陷,提出了一种计算程序加速策略。通过转变水库调度计算过程中水库特征曲线的插值模式,根据水库特征曲线节点数据预先构造分段线性函数,利用分段函数替换传统插值方法以实现水库特征曲线的读取。以典型入
2、库流量下某梯级水库发电优化调度为实例,选用布谷鸟算法进行优化计算,对比了传统插值策略与加速策略。结果表明:基于分段线性函数的加速策略能明显缩短计算耗时,同时该加速策略对算法的收敛性、优化结果以及其稳定性几乎无影响。因此,基于分段线性函数的加速策略合理、可靠,是提高水库调度模型求解效率的一种实用、有效方法。关键词:水库群;优化调度;分段线性函数;加速策略;布谷鸟算法中图分类号:TV697.11文献标志码:A文章编号:1006~4710(2016)O1—0063—07Studyonaccelerationstrategyforoptimizingreservoiroperationmodelofm
3、ulti—reservoirsystemsMINGBo,HUANGQiang,WANGYimin,LIUDengfeng,GUANJian(StateKeyLaboratoryBaseofEco—hydraulicEngineeringinAridArea。Xi’anUniversityofTechnology,Xi’an710048,China)Abstract:Withanaimatdealingwiththede{eatsoflong—timeconsumptioninseekingsolutiontotheoperationmodelfortraditiona1multi—reserv
4、oirsystems,thispapersuggestsakindofaccelera-tionstrategyofthecalculationprogram.Throughtransformingtheinterpolationmodeofreser—voirfeaturecurvesintheprocessoftraditionalreservoiroperationoptimizationandintermsofthepre—constructionofpiecewiselinearfunctionofreservoirfeaturecurvenodedata,thereadingsof
5、reservoirfeaturecurvescanberealizedbymeansofthepiecewiselinearfunctiontoreplacethetraditionalinterpolationmethod.Withthehydroelectricoperationofacascadereservoirundertypicalreservoirinflowsasthecasestudy,thecuckoosearchalgorithmisselectedtocarryouttheoptimalcalculationandtocomparetraditionalinterpol
6、ationstrategywiththeaccelerationstrate—gy.Theresearchfindingsindicatethattheaccelerationstrategybasedonthepiecewiselinearfunctioncanobviouslyshortenthecalculationtimeconsumption,andatthesametime,thisac—celerationstrategycanhardlyaffectthealgorithmconvergence,optimalresultsanditsstability.Accordingly
7、,theaccelerationstrategybasedonthepiecewiselinearfunctionisrationalandrelia—bleaswellasakindofpracticalandeffectivemethodtoimprovetheoptimizationefficiencyofres—ervoiroperationmodels.Keywords:multi—re
此文档下载收益归作者所有