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时间:2020-06-20
《蒸汽发生器多目标优化设计.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、第35卷第3期哈尔滨工程大学学报V01.35No.32014年3月JournalofHarbinEngineeringUniversityMal".2014蒸汽发生器多目标优化设计陈磊,阎昌琪,王建军(哈尔滨工程大学核安全与仿真技术国防重点学科实验室,黑龙江哈尔滨150001)摘要:针对现有非支配解排序算法寻优精度不高的问题,设计了一种改进非支配解排序算法。该算法采用高频变异策略,通过增强算法局部搜索能力,提高非支配解精度;基于秦山核电站相关参数,编制其sG评价程序,通过开展参数敏感性分析,选取优化变量,采用多目标优化设计
2、理论,通过合理调整优化变量,得到SG非支配解前沿面。研究结果表明:改进的非支配解排序算法在非支配解收敛性及连续性上都优于原算法;在所得到的SG非支配解中,当SG质量小于190t时,堆芯进口温度降低导致SG一次侧流量减小、SG质量增加;当SG质量大于225t时,SG传热管内流速降低使得一次侧流量减小、SG质量增加;通过优化设计,SG质量最大可减轻17.66%,SG一次侧流量最大可减轻17.58%。关键词:多目标优化设计;非支配最优个体;蒸汽发生器;秦山核电站;遗传算法doi:10.3969/j.issn.1006—7043.
3、201212099网络出版地址:http://www.cnki.net/kcms/detail/23.1390.U.20140103.1705.001.html中图分类号:TL353文献标志码:A文章编号:1006—7043(2014)03.0336.06Multi-objectiveoptimizationofasteamgeneratorCHENLei,YANChangqi,WANGJianjun(FundamentalScienceonNuclearSafetyandSimulationTechnologyLabor
4、atory,HarbinEngineeringUniversity,Harbin150001,China)Abstract:Toreceivehigherprecisionfromthenon—dominatedsortinggeneticalgorithm,animprovednon-domina—tedsolutionsortinggeneticalgorithmwasdeveloped.Thehyper-mutationstrategywasemployedtoenhancethelocalsearchinginth
5、eimprovedalgorithm,thustheprecisionofthenon-dominatedsolutionwasincreased.BasedonthedatafromtheQinshanInuclearpowerplant,anSGmathematicalmodelwasproposed;theoptimizationvariableswerechosenbythesensitivityanalyses;theprimaryflowrateandweightoftheSGwereoptimizedbyad
6、justingthesevariablesthroughthemulti—objectiveoptimizationtheory.Theresultsindicatethatthenon—dominatedsolutionsobtainedbytheimprovedalgorithmshowbetterconvergenceandaremorecontinuousthanthesolutionsoftheorigi—nalalgorithm.TheprimaryflowratereductionandSGweightinc
7、rementsarecausedbythedecreasingofthereactorinlettemperature,whentheSGweightislessthan190t.TheprimaryflowratereductionandSGweightincrementsarecausedbythecoolantspeeddecreasingintheU—tube,whentheSGweightisgreaterthan225t.Theweightandflowratecanbeoptimizedby17.66%and
8、17.58%atmost,respectivelythroughtheoptimizationdesign.Keywords:multi—objectiveoptimizationdesign;non—dominatedsolutions;steamgenerator;QinshanINuclearPo
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