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1、DOI:10.13334/j.0258-8013.pcsee.2012.34.007第32卷第34期中国电机工程学报Vol.32No.34Dec.5,2012302012年12月5日ProceedingsoftheCSEE©2012Chin.Soc.forElec.Eng.文章编号:0258-8013(2012)34-0030-06中图分类号:TM71文献标志码:A学科分类号:47040智能电网条件下的多目标输电网规划12苏浩益,李如琦(1.湘潭电业局,湖南省湘潭市411104;2.广西电力系统最优化与节能技
2、术重点实验室(广西大学),广西壮族自治区南宁市530004)ANovelMethodforMulti-objectiveTransmissionNetworkPlanningUnderSmartGridCondition12SUHaoyi,LIRuqi(1.XiangtanPowerSupplyBureau,Xiangtan411104,HunanProvince,China;2.KeyLaboratoryofGuangxiElectricPowerSystemOptimizationandEnergySavi
3、ngTechnology(GuangxiUniversity),Nanning530004,GuangxiZhuangAutonomousRegion,China)ABSTRACT:Inordertosolvetheproblemthatthe的夹角余弦值进行比较,得到综合效益最佳的优化决策方multi-objectivetransmissionnetworkplanningundersmart案,为未来智能电网规划建设进行有效的指导。算例分析验gridcondition,undersmartgridinfra
4、structure,theinvestment证了该方法的有效性和可行性。costoftheplanningschemeswasappliedtoweighteconomic关键词:电力系统;多目标电网规划;余弦排序;综合指标performance,theoutagelossofcustomerswasappliedto集;智能电网measurethereliabilityoftheschemes,availabletransfercapabilityofthenetworkwasappliedtoevalua
5、tetheflexibility0引言oftheschemes,themethodofusingthesystemexpansion智能电网具有自愈和自适应、安全可靠、经济factorwasappliedtoquantifytheadaptabilityoftheschemes,高效、兼容、友好互动的特点,输电网络是输送电andthelowestlimitvalueofthelinebetweennesswasappliedtoassesstheinvulnerabilityofthescheme.Onthis
6、basis,a力的载体,坚强、灵活的电网结构是未来智能电网[1-6]multi-objectivetransmissionnetworkplanningmodelbasedon发展的基础。智能电网的本质决定了电网规划cosineprioritizingtheorywasestablished.Theentropytheory时,需要综合考虑多个具有不同的量纲、不同的重wasintroducedtodeterminetheweightcoefficientsofindices要性甚至是互相矛盾的目标。多目标优化方
7、法以优andthevalueofweightcouldavoidtobejudgedby化结果的综合效益最佳为目标,为多目标电网规划subjectivity.Inthehigh-dimensionalspace,bycomparingthe提供了一种有效途径。cosinevaluebetweendirectedlinesegmentineachschemeand文献[7]利用改进的最优切负荷模型计算缺电idealdirectedlinesegmentinidealscheme,theoptimumschemew
8、asobtained,sothatitgiveseffectiveguidanceforthe成本,将可靠性指标转化为经济性指标,通过分层futuresmartgridplanningandconstruction.Analysisofan最优化方法求得多目标电网规划的最终结果;文exampleverifiedthevalidityandfeasibilityofthemethod.献