Determination of atc by using dcptdf and acptdf methods

In the deregulated electrical market, the competition for choice and to acquire of electric power is increasing drastically in our day to day life. ATC is used to calculate the transfer of maximum power between lines. The definition of ATC implies the measurement of remained transfer capability in the transmission system for further commercial activity. ATC of the power system network depends on factors i.e., thermal overload limitation, voltage stability limitation, voltage magnitude limitation. It gives the information about the unused power at any particular point of the network. To calculate ATC, DCPTDF (DC Power Transfer Distribution Factor) and ACPTDF (AC Power Transfer Distribution Factor) methods are used in this paper. The study of DCPTDF and ACPTDF methods are used to analyze the load flows. The above methods are applied on IEEE 6-bus system. These methods are calculated by using MATLAB software. Load flow solution is analyzed by NR (Newton-Raphson) method. Keywords— Available Transfer Capability (ATC), DC Power Transfer Distribution Factor (DCPTDF), AC Power Transfer Distribution Factor (ACPTDF), Single and Multiple transactions.