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1、第35卷第8期电网技术Vol.35No.8
2011年8月PowerSystemTechnologyAug.2011文章编号:1000-3673(2011)08-0053-06中图分类号:TM73;F123.9文献标志码:A学科代码:790·625基于风险的微网分布式发电备用配置决策罗运虎1,陈海牛2,李磊1,吕亚洲1,谢少军1(1.南京航空航天大学自动化学院,江苏省南京市210016;2.中国人民解放军第5720工厂,安徽省芜湖市241007)RiskDecision-MakingforConfigurationofMicrogr
2、idDistributedGenerationReserveLUOYunhu1,CHENHainiu2,LILei1,LÜYazhou1,XIEShaojun2(1.CollegeofAutomationEngineering,NanjingUniversityofAeronautics&Astronautics,Nanjing210016,JiangsuProvince,China;2.The5720FactoryoftheChinesePeople’sLiberationArmy,Wuhu241007,AnhuiProvince
3、,China)ABSTRACT:Thereserveofmicrogridinmarketenvironment风险管理角度建立优化NDGR配置的数学模型,提出基于isdividedintotwokinds,namelytheinternalreserveandthe代价对参数的灵敏度来指导优化方向的寻优算法,针对容量externalreserve,theformeroffersupportduringthefaults事故集对NDGR的最优配置进行风险决策,量化分析微电occurredinlarge-scalepowergrida
4、ndthelattercontains网运行模式、储能以及NDGR价格对NDGR配置的影响。non-renewabledistributedgenerationreserve(NDGR),energy仿真结果表明,NDGR配置过高或过低都不合适,而应存storagedevicesandtwosortsofinterruptibleloads,i.e.,the在最优值。lowpriceloadandhighindemnityload.InordertoimprovetheeconomyofNDGRconfigurationformic
5、rogrid,basedondetailedanalysisonthefeasibilityofapplyingoptimalreserve关键词:不可再生分布式发电;备用配置;风险决策;全局优化;综合协调;微电网;电力市场0引言configurationtechnologyforlarge-scalepowergridtomicrogridandintheviewpointofriskmanagementaswellasaccordingtoeconomiccomplementaritypropertiesofvariousres
6、ervesinmicrogridandutilizingtheideaofcoordinativeoptimization,amathematicalmodelforoptimalconfiguration受风速、光强等自然因素的影响,微电网中可再生分布式发电(distributedgeneration,DG)[1-3](包括风力发电、太阳能发电等可再生能源发电)具有高度的不确定性,由此所引发的供需不平衡问题轻则影ofNDGRisestablished.Anoptimizationalgorithm,whose响电能质量,重则降低对
7、重要用户的供电可靠性,optimaldirectionisguidedbythesensitivityofcosttoparameters,isproposedandinallusiontocapacityfaultsthe因而微电网同样也存在与大电网相类似的供电可靠riskdecision-makingforoptimalconfigurationofNDGRis性问题。为保证微电网安全可靠经济供电,既需要performedwhiletheoperationmodesofmicrogrid,energy研究确定性负荷需求下分布式供
8、电策略优化,同时storageandtheinfluenceofcostofNDGRonitsconfigurationarequantitativelyanalyzed.Simulationresultsshowthattheexo