%0 Journal Article
%T A combined pool/bilateral dispatch model for electricity markets with security constraints
%A Jes迆s Mar赤a L車pez Lezama
%A Luis Alfonso Gallego Pareja
%A Mauricio Granada每Echeverri
%J -
%D 2011
%X The secure operation of the electric power system is a challenging task for the system operator which is responsible of its coordination, control and monitoring. In most power systems security is typically handled on a multi每stateapproach. In which case, security criteria are incorporated by means of additional constraints, modifying the initial dispatch calculation. In this papera generation dispatch model for competitive energy markets considering security constraints is presented. The proposed approach combines the generationdispatch related to pool and bilateral markets with coupled post每contingency optimal power flows into a single optimal dispatch model, avoiding economic inefficiencies that appear in conventional multi每stage dispatch approaches.The proposed model is linear, and as such, it is based on a DC model of the network. A 6每bus didactic system and the IEEE RTS每24 bus test systemare used in order to show the operation and effectiveness of the proposed approach and to compare it with the basic pool/bilateral dispatch with no security constraints. Results show that the inclusion of security constraints leadto a higher dispatch cost. Furthermore, it was found that the enforcement offirmed bilateral contracts might lead to system congestion
%K optimal dispatch
%K bilateral contracts
%K energy markets.
%U http://publicaciones.eafit.edu.co/index.php/ingciencia/article/view/398