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1、1ADifferentialEvolutionApproachtoOptimalGeneratorMaintenanceSchedulingoftheNigerianPowerSystemY.Yare,StudentMember,IEEE,andG.K.Venayagamoorthy,SeniorMember,IEEEPowersystemcomponentsaremadetoremaininoperatingAbstract--Thegoalofoptimalgeneratormaintenancecondit
2、ionsbyregularpreventivemaintenance.Thetaskofschedulingistoevolveoptimalpreventivemaintenanceschedulegeneratormaintenanceisoftenperformedmanuallybyhumanofgeneratingunitsforeconomicalandreliableoperationofaexpertswhogeneratetheschedulebasedontheirexperiencepowe
3、rsystemwhilesatisfyingsystemloaddemandandcrewandknowledgeofthesystem,andinsuchcasesthereisnoconstraints.Inthispaper,thedifferentialevolution(DE),anguaranteethattheoptimalornearoptimalscheduleisfound.evolutionarycomputationalgorithmthatutilizesthedifferentialT
4、hepurposeofmaintenanceschedulingistofindtheinformationtoguideitsfurthersearch,isappliedtoeffectivelysequenceofscheduledoutagesofgeneratingunitsoverasolvethegeneratormaintenancescheduling(GMS)optimizationproblem.Theproposedmethodcanhandlemixedintegerdiscretegi
5、venperiodoftimesuchthatthelevelofenergyreserveiscontinuousoptimizationproblems.Resultsarepresentedwiththemaintained.ThistypeofscheduleisimportantmainlybecauseDEalgorithmontwodifferentcasestudiesforNigerianpowerotherplanningactivitiesaredirectlyaffectedbysuchs
6、ystem.decisions.Inmodernpowersystems,thedemandforelectricityhasgreatlyincreasedwithrelatedexpansionsinIndexTerms--Differentialevolution,discreteoptimization,systemsize,whichhasresultedinhighernumberofgeneratormaintenance,Nigerianpowersystem,optimalgeneratorsa
7、ndlowerreservemarginsmakingthegeneratorscheduling.maintenancescheduling(GMS)problemmorecomplicated.TheeventualaimoftheGMSistheeffectiveallocationofI.INTRODUCTIONgeneratingunitsformaintenancewhilemaintaininghighPREVENTIVEmaintenanceschedulingofgeneratingunitss
8、ystemreliability,reducingproductioncost,prolongingisanimportanttaskinpowersystemandplaysmajorrolegeneratorlifetimesubjecttosomeunitandsystemconstraintsinoperationandplanningofthesystem.Th
