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1、XX大学本科学位论文题目:微电网协调运行控制策略摘要本文主要通过进行了理论研究、仿真平台搭建,研究微电网综合协调控制策略,,仿真结果分析,为后续微电网的深入研究奠定了基础。本文设计了PQ控制器、基于下垂特性的V/f控制器,并对逆变器输出滤波器进行了设计。同时,针对PI控制器的不足,利用模型预测控制方法设计了微网中分布式微电源逆变器的PQ模型预测控制策略和基于下垂特性的V/f模型预测控制策略,并在MATLAB/Simulink中建立了仿真模型,对单个微电源分别采用PI控制和MPC控制时的不同场景进行了分析,证明了MPC控制器的效果。最后,建立了微电网的模型
2、,用风力发电机组、光伏以及蓄电池三种微电源的模型代替直流电压源,并设计相应的控制策略,在MATLAB/Simulink中,搭建了整个系统的模型,分别在风机和光伏阵列出口处配置蓄电池,用于平抑并网功率并在孤岛下提高电压和频率支撑,仿真结果验证了控制策略的可行性。关键词:微电网;综合协调控制;风光储;逆变器;模型预测控制StudyontheCoordinationControlStrategyofWind-Solar-StorageMicro-gridAbstractThispapermainlystudiesthemicro-gridintegrateda
3、ndcoordinatedcontrolstrategies,and,bytheoreticallyanalyzing,simulationplatformconstruction,andsimulationresultsanalyzing,laidthefoundationsforsubsequentin-depthstudyofmicro-grid.Inthispaper,aPQcontroller,aV/fcontrollerbasedondroopcharacteristicandtheinverteroutputfilterhasbeendes
4、igned.Meanwhile,consideringPIcontroller’sinsufficiency,theModelPredictiveControlstrategywasusedtodesigntheconverter’sPQmodelpredictivecontrolstrategyandV/fmodelpredictivecontrolstrategybasedondroopcharacteristics,andthesimulationmodelwasestablishedinMATLAB/Simulink.Then,bysimulat
5、ingasinglemicro-sourcerespectivelyusingPIcontrollerandMPCcontrollerindifferentscenesandbyafterwardanalyzingandcomparing,theeffectivenessofMPCcontrollerswasproved.Aftersinglemicro-source’sintegratingstrategyresearch,themodelofmicro-gridwithmultiplemicro-sourceswasbuilt,andthrought
6、hesimulatingandanalyzingunder3conditions:themicro-gridoperationmodeswitching,cuttingoraddingloadinislandmode,cuttingamicro-sourceinislandmode,itisfoundthatthemicro-sourceMPCcontrollerdesignedinthisthesisachievedasoundpowercontrolbehaviorundertheaforementionedthreeconditions.Meanw
7、hile,boththemicro-grid’svoltageandfrequencywerewithintherequiredrangeofthesystem,whichprovestheeffectivenessofcontrolstrategies.Last,thewind-solar-storagemicro-gridmodelwasbuilt,whichusedawindpowergenerationsystem,aphotovoltaiccellandastoragebatterytoreplaceDCvoltagesources,along
8、withthedesignofcorrespondingcontrolstrat