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1、第xx卷第xxx期电测与仪表Vol.xxNo.xxxxxxx年第xx期ElectricalMeasurement&InstrumentationDec.xxxx计及电压波动的配电网无功优化运行初壮，徐洁，黄大为，孙陶然（东北电力大学电气工程学院，吉林吉林132012）摘要：针对由于分布式电源(DistributedGeneration，DG)出力和负荷的不确定性而引起的电压波动的问题，采用电容器组、分布式电源和静止无功补偿装置(StaticVarCompensator，SVC)协调控制的方法，平抑电压波动。首先，在电容器组静态优化时，运用网络参数
2、变动定理修正系统潮流，提高潮流计算的速度，快速得到补偿后新的各节点电压。其次，对于电容器组的静态优化结果，采用谱系聚类法合并分段，满足投切开关动作次数的约束，确定各电容器组的动作时刻和补偿容量，为实时电压控制建立良好的控制环境。最后，在电容器组补偿的基础上，分析DGs、SVC无功出力极限并作为约束条件，当实时节点电压越限时，通过电压灵敏度分析计算DGs、SVC实时无功调节量，并通过算例分析验证该方法的有效性。关键词：分布式电源；配电网；电压波动；电压灵敏度中图分类号：TM933文献标识码：B文章编号：1001-1390（2018）00-0000-
3、00ReactivepoweroptimizationofdistributionnetworksconsideringDGsvoltagefluctuationChuZhuang,XuJie,HuangDawei,SunTaoran(CollegeSchoolofElectricalEngineering,NortheastElectricPowerUniversity,Jilin132012,Jilin,China)Abstract：Accordingtothevoltagefluctuationcausedbytheuncertaintyo
4、fdistributedgeneration(DG)outputandloaduncertaintyproblemofreactivepowercompensationdevicewithcapacitor,distributedgenerationandstaticvarcompensator(SVC)methodofcoordinatedcontrol,stabilizethevoltagefluctuation.Firstly,whenthestaticoptimizationofthecapacitorbankiscarriedout,t
5、hepowerflowiscorrectedbyusingtheparameterchangetheoremoftheelectricnetwork,andthespeedofthepowerflowcalculationisimproved,andthenewnodevoltageiscompensatedquickly.Secondly,toasforthestaticoptimizeoptimizationresultthestaticresultsofcapacitorgroup,usingthehierarchicalclusterin
6、gmethodwithpiecewiseisadoptedto,meettheswitchingactionnumberconstraints,determinetheactiontimeandthecompensationcapacityofeachcapacitorgroup,soasreal-timevoltagecontroltoestablishagoodcontrolenvironmentforthereal-timevoltagecontrol.Finally,onthebasisofcapacitorbankcompensatio
7、n,thereactivepowerlimitofDGsandSVCisanalyzedasaconstraintcondition.Whenthereal-timenodevoltageislimited,thereal-timereactivepowerregulationofDGsandSVCiscalculatedbyvoltagesensitivityanalysis,andthroughtheexamplestoverifythevalidityoftheproposedmethodisverifiedthroughtheexampl
8、es.Keywords：distributedgeneration，,distributionnetworks，,voltagefluc
