资源描述：
《Improved Droop Control for Parallel Inverters in》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、2012IEEE7thInternationalPowerElectronicsandMotionControlConference-ECCEAsiaJune2-5,2012,Harbin,ChinaImprovedDroopControlforParallelInvertersinMicrogridsQuanweiLiu,LinjueLi,HaoPeng,YanDengandXiangningHe,Fellow,IEEECollegeofElectricalEngineering,ZhejiangUniversity,Hangzhou,310027,China
2、Abstract—Inthispaper,animproveddroopcontrolmethodiscommunicationwires.Asaresult,lotsofwirelesscontrolproposedfortheparallelinvertersinmicrogrids.Theproposedstrategiesbasedonthedroopmethodaredeveloped[7-9].strategyisbasedonthedroopcontroltechnique,whichonlyThedroopcontrolconceptisdedu
3、cedfromthepowerusingthelocalmeasurablefeedbackinformation.Thisapproachsystem,inwhichagrid-connectedsynchronousgeneratorcanbeappliedtotheinverter-basedmicrogridswheredropsitsfrequencyandvoltageduetotheincreaseofactivecommunicationwiresarenoteconomicandreliableduetotheandreactivepower[
4、10].Theconventionaldroopcontrolonlydistantphysicallocations.Unfortunately,thetrade-offhastobemadebetweenthetransientresponseandthepowersharingtakestheinverteroutputinductanceintoaccountandtheaccuracyfortheconventionalvoltageandfrequencydroopequivalentseriesresistance(ESR)ofthefilteri
5、nductoriscontrolmethod.Moreover,theoutputandlineimpedanceoftheusuallyignored.However,theESRdoesimpactthepowerinverterpresentsagreatimpactonthepowersharingaccuracy.sharingaccuracyoftheinverters.What’smore,thelineTheproposedmethodtakesintoaccounttheresistanceofimpedancewhichcontainsbot
6、hresistanceandinductancealsoinverteroutputimpedanceandlineimpedance,andusesthecontributesalargeparttothetotalimpedanceoftheinverter.activeandreactiveoutputcurrentasthecontrolvariables,whichInthelowvoltagemicrogridstheresistancemayeventakethelimitsthecurrentspikesduringtheinitialandtr
7、ansientstates.mainpartofthelineimpedance[9].AnorthogonaltransformAdditionally,thederivate-integraltermsareintroducedtooftheactiveandreactivepoweroftheinverteristakentoenhancethedynamicresponseoftheinverters.Simulationresultsandexperimentalwaveformsaregiventovalidatetheeliminatetheimp
8、actoftheresi
