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Newinvertercontrolforbalancingstandalonemicro-gridphase
voltages:AreviewonMGpowerqualityimprovement

ملخص البحث
StandaloneMicroGrid(MG)suffersfromhighvoltageunbalancingduetobothsinglephaseandunba- lanced loads.Thispaperpresentsacomprehensivesurveyabouttheavailabletechniquesandcontrollers for MGpowerqualityimprovement.RecenttrendsandschemesforthestandaloneMGpowerquality improvementarereportedindetail.ThetechniqueswhichconcernwiththeMGvoltageunbalancing issue arehighlighted.Inaddition,thispaperdevelopsasimpleschemeforbalancingtheMGphase voltages.Theproposedschemeemploysanewinterfacinginvertertopologyandcontrol.Thethreephase compact unitinterfacinginverteroftheDistributedGenerators(DGs)hasbeenrebuiltinformofthree single phaseinverterunits.EachsinglephaseinverterunitiscontrolledindependentlytoachieveMG phase voltagebalancing.Atdifferentloadoperatingconditions,thethreesinglephaseinverterunitsrun at differentvaluesandtypes(leadingorlagging)powerfactors(PF).Employingtheproposedinverter control achievesperfectphasevoltagesbalancingatthemostMGbuses.Beforeemployingtheproposed invertercontrol,thevoltageunbalancingratioatsomebusesexceedsthan6%.Thisratioapproximately shrinks tozeroafterincludingtheproposedinvertercontrol.Theperformanceoftheproposedinverter control hasbeentestedunderdifferentloadconditions.Inaddition,theperformanceoftheproposed invertercontroliscomparedwithboththeoldinvertercontrol(unitypowerfactorinverter)andthe conventionalinvertercontrol(constantpowerfactorinverter)performance.Only,asimplemodification to theoldinvertercontrolissufficient toimplementthenewinvertercontrol.Theproposedinverter control isverysimpleandhighlyeconomicalattractive
مؤلف البحث
Rashad M.Kamel a,b,n
مجلة البحث
RenewableandSustainableEnergyReviews
صفحات البحث
pp. 520–532
الناشر
NULL
تصنيف البحث
1
عدد البحث
Vol. 63
موقع البحث
NULL
سنة البحث
2016