Multi-Area Available Transfer Capability Determination in the Restructured Electricity Market

Deregulation of the electricity industry aims at creating a competitive market to trade electricity, which generates a host of new technical challenges to market participants and power system researchers. One of the major challenge is to accurately gauge the transfer capability remaining in the system for further transactions, which is termed available transfer capability (ATC). There are different methods proposed by researchers to determine ATC for the assumed transactions. This paper describes the evaluation of multi-area ATC using AC power transfer distribution factors (ACPTDF) and participation factors (PF) in combined economic emission dispatch (CEED) environment. Area-wise transactions have been carried out on IEEE 30 bus and IEEE 118 bus systems for the assessment of multi-area ATC for both normal, line outage contingency. The obtained multi-area ATC results are compared with power world simulator to justify its accuracy. The solutions obtained are quite encouraging and useful in the present restructuring environment.