交直流混合微电网中双向ac%2fdc功率变换器控制策略研究

《交直流混合微电网中双向ac%2fdc功率变换器控制策略研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、万方数据太原理工大学硕士研究生学位论文IV万方数据太原理工大学硕士研究生学位论文RESEARCH0NTHECONTROLMETHODOFINTERLINK—CONVERTERINHYBRIDMICROGRIDABSTRACTAlongwiththegrowingdemandforenergyandtheenvironmentproblem,speeduptheconstructionofthenewenergybecomesoneoftheimportantobjectivesofthedevelopmentofnationaleconomicconstruction．Astheworld’

2、Slargestdevelopingcountry,china’Senergyproductionandconsumptionishuge．Duetothecontinuedgrowthoftheenergysupply,itprovidesimportantsupportforchina’Seconomicdevelopment．Withthegradualimprovementoftherequirementtotheenvironment，itisfacingabigtestforthepowersystemwhichismainlycomposedofthermalpower．So，

3、todevelopnewenergypowersystemsasphotovoltaicandwindpowerisabigtrend．ThedistributedgenerationandmicrogridresearchhasbecomeoneofthecoresubjectsinceEuropeandtheunitedstatesfirstputforwardthedevelopmentofmicrogrid．Thediversificationofenergysupplyandenvironmentallyfriendlyfeaturesmakethemicrogridaidealp

4、owersupplywayToachievetheproperpowerbalanceandimprovethesystemstability,thispaperproposedanewdropcontrolmethodforinterlinkingconvertersinhybridmicrogrid．V———莶堡墨三奎兰堡主堡壅生堂焦堡奎万方数据Inthispaper,themainworkisinthefollowingrespects．(1)Ahybridmicrogirdtopologywhichformedbytyingadcandanacsub—gridtogetherthro

5、ughinterfacingconverterwereusedinthispaper．Thehybridmicrogridhasbothacanddcmicrogridadvantages，itsupportsplugandplayandcanalsoadjustthepowerbalanceautomatically,thecontrolmethodssolelybaseonlocalmeasurementsexhibitasuperiorredundancy,astheydonotrelyoncommunicationforreliableoperation．Duetotheuseoft

6、hehybridmicrogirdtopology,thesystemcapacityofmicrogirdhasbeenexpanded．Meanwhile，thenewenergyutilizationandthereliabilityofthesystemhasalsobeenimproved．(2)Forthehybridmicrogridsetupinthispaper,itsrunningmechanismhasbeenanalyzedindetail，andtheinterlinkingconverteroperatingcontrolgoalhasalsobeendesign

7、edbasedonmicrogridpowermanagement．HybridmicrogridconnecttothepowergridthroughthePCCpointundergrid—connectedmode．Energycanbeexchangedbetweenthetwosystemwhennecessarytoensurethestableoperationofthesystem．Itca