Feasibility assessment of simultaneous bilateral and multilateral transactions

The main aim in this paper is to develop algorithm for assessment of the feasibility of simultaneous bilateral and multilateral transactions and if they are not feasible then to find out the minimum amount of transacted power to be curtailed in order to make them feasible. This analysis will be a great help for the generations-loads pairs to decide whether to withdraw the unfeasible transaction completely or to make it feasible by reducing its size optimally. The proposed algorithm can also be used for determining the transfer capability and hence feasibility of a single bilateral transaction at a time. In addition to above algorithm an efficient, repeated Newton–Raphson power flow based algorithm is also developed to determine transfer capability and hence feasibility for single bilateral transaction. The results of the proposed algorithm have been compared with a method proposed by Hamoud in his paper [6]. In this paper, based on the proposed algorithm and with the extension of Hamoud’s method, different feasibility evaluation procedures for simultaneous bilateral and multilateral transactions are suggested, analyzed and applied.