Estimation of available transfer capability for bilateral trading transactions

Abstract

With increasing electricity demand, existing transmission network is constrained to supply economic and reliable power to the consumers. In open access environment, the capacity of the network, therefore must be analysed carefully before a transaction between utilities is executed. The available transfer capability (ATC) is the measure which compute a amount of power that can be transmitted over transmission network within the permissible limits. In the proposed work, ATC for a given power system is calculated using PTDF method for each source-sink pair and Iranian load curve. The simulation is carried out on IEEE 6 bus system in MATLAB programing environment.