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Transmissionmanagementforcongestedpowersystem:Areviewof concepts,technicalchallengesanddevelopmentofanewmethodology
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Abstract
Transmissionnetworkshavesomeconstraintsthatshouldbeaddressedinordertoensuresufficient\ud
control tomaintainthesecuritylevelofapowersystemwhilemaximisingmarketefficiency.Themost\ud
obviousdrawbackoftransmissionconstraintsisacongestionproblemthatbecomesanobstacleto\ud
perfect competitionamongthemarketparticipantssinceitcaninfluence spotmarketpricing.Asthe\ud
power flow violatestransmissionconstraints,redispatchinggeneratingunitsisrequiredandthiswill\ud
cause thepriceateverynodetovary.Thismanuscriptpresentsconcepts,technicalchallengesand\ud
methodology forinvestigatinganalternativesolutiontotheredispatchmechanismandthenformulates\ud
LMP schemeusinganoptimisationtechniquethatmaywellcontrolcongestionasthemainissue.The\ud
LMP schemearevariedandimprovedtotakeintoaccounttheenergyprice,congestionrevenue,costof\ud
losses, aswellasthetransmissionusagetariffbyutilisingshiftfactor-basedoptimalpower flow\ud
(SF-OPF), whichisderivedfromthewell-knownDCoptimalpower flow(DC-OPF)mode
