简介：Inourearlierpaper,powersystemstabilizers(PSSs)aredesignedforanine-machinesystem,anewpole-placementtech-niqueisdevelopedforthedesign,andparticipationfactorsareusedtodecidehowmanystabilizersarerequiredandwheretheyshallbe.Eachmachinebeingrepresentedbyalow-orderlinearmodel,thereissomereservationoftheresults.Inthispaper,extensivetransientsimulationsareperformedandeachmachineisrepresentedbyahigh-ordernonlinearmodel.Coherentgroupsarefound.Aweightedspeeddeviationindex(SDI)isdefinedtofindoutthemostunstablemachinesinthesystem.PSSsaredesignedafterthedecisionsofPSSnumberandsites.Transientsimulationsarecarriedoutagainfortheclosed-loopsystem.Asystemstabilityindex(SSI)isusedtoevaluatethestabilityoftheclosed-loopsystem.ItisfoundthatthreePSSsaresufficienttoensurethestabilityofthenine-machinesystem.

简介：Basedonthefulluseofhistoricalreservoirdispatchinginformation,artificialintelligenceisappliedtogridreservoirgroupdispatching.Aknowledgerepresentationmethod,whichcombinesdispatchingrulesandintelligencemodels,isputforward.Theintelligentdispatchingsystemisestablishedandthesystemarchitectureispresented.Additionally,theacquisition,representationandreasoningmechanismofreservoirdispatchingknowledgearedesignedindetail.

简介：Inordertopromotethedevelopmentofnewandrenewableenergytechnologies,theNationalDevelopmentandReformCommissionhasrecentlydecidedthatitwillgivebackingtothehigh-techindustrializationofnewandrenewableenergyresourceswithspecial-purposefundsduringtheperiodof2005-2007.Thestate-supportedkeypointsareasfollows.