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1、XX大學(xué)本科學(xué)位論文題目:微電網(wǎng)協(xié)調(diào)運(yùn)行控制策略摘要本文主要通過進(jìn)行了理論研究、仿真平臺(tái)搭建,研究微電網(wǎng)綜合協(xié)調(diào)控制策略,,仿真結(jié)果分析,為后續(xù)微電網(wǎng)的深入研究奠定了基礎(chǔ)。本文設(shè)計(jì)了PQ控制器、基于下垂特性的V/f控制器,并對(duì)逆變器輸出濾波器進(jìn)行了設(shè)計(jì)。同時(shí),針對(duì)PI控制器的不足,利用模型預(yù)測(cè)控制方法設(shè)計(jì)了微網(wǎng)中分布式微電源逆變器的PQ模型預(yù)測(cè)控制策略和基于下垂特性的V/f模型預(yù)測(cè)控制策略,并在MATLAB/Simulink中建立了仿真模型,對(duì)單個(gè)微電源分別采用PI控制和MPC控制時(shí)的不同場(chǎng)景進(jìn)行了分析,證明了MPC控制器的效果。最后,建立了微電網(wǎng)的模型,用風(fēng)力發(fā)電
2、機(jī)組、光伏以及蓄電池三種微電源的模型代替直流電壓源,并設(shè)計(jì)相應(yīng)的控制策略,在MATLAB/Simulink中,搭建了整個(gè)系統(tǒng)的模型,分別在風(fēng)機(jī)和光伏陣列出口處配置蓄電池,用于平抑并網(wǎng)功率并在孤島下提高電壓和頻率支撐,仿真結(jié)果驗(yàn)證了控制策略的可行性。關(guān)鍵詞:微電網(wǎng);綜合協(xié)調(diào)控制;風(fēng)光儲(chǔ);逆變器;模型預(yù)測(cè)控制StudyontheCoordinationControlStrategyofWind-Solar-StorageMicro-gridAbstractThispapermainlystudiesthemicro-gridintegratedandcoordinate
3、dcontrolstrategies,and,bytheoreticallyanalyzing,simulationplatformconstruction,andsimulationresultsanalyzing,laidthefoundationsforsubsequentin-depthstudyofmicro-grid.Inthispaper,aPQcontroller,aV/fcontrollerbasedondroopcharacteristicandtheinverteroutputfilterhasbeendesigned.Meanwhile,co
4、nsideringPIcontroller’sinsufficiency,theModelPredictiveControlstrategywasusedtodesigntheconverter’sPQmodelpredictivecontrolstrategyandV/fmodelpredictivecontrolstrategybasedondroopcharacteristics,andthesimulationmodelwasestablishedinMATLAB/Simulink.Then,bysimulatingasinglemicro-sourcere
5、spectivelyusingPIcontrollerandMPCcontrollerindifferentscenesandbyafterwardanalyzingandcomparing,theeffectivenessofMPCcontrollerswasproved.Aftersinglemicro-source’sintegratingstrategyresearch,themodelofmicro-gridwithmultiplemicro-sourceswasbuilt,andthroughthesimulatingandanalyzingunder3
6、conditions:themicro-gridoperationmodeswitching,cuttingoraddingloadinislandmode,cuttingamicro-sourceinislandmode,itisfoundthatthemicro-sourceMPCcontrollerdesignedinthisthesisachievedasoundpowercontrolbehaviorundertheaforementionedthreeconditions.Meanwhile,boththemicro-grid’svoltageandfr
7、equencywerewithintherequiredrangeofthesystem,whichprovestheeffectivenessofcontrolstrategies.Last,thewind-solar-storagemicro-gridmodelwasbuilt,whichusedawindpowergenerationsystem,aphotovoltaiccellandastoragebatterytoreplaceDCvoltagesources,alongwiththedesignofcorrespondingcontrolstrat