Improving the MVA-km Method for Transmission Cost Allocation Using Counter-Flow Approaches

Today with restructuring in power systems and the emergence of competitive electricity markets, operation of the power system have been many changes one of the challenges facing the electricity markets, is transmission pricing. transmission pricing has great impact on the network return on investment, competition and attracting new investors. In this paper, transfer pricing is performed by combination of Zbus and MVA-km methods. The Zbus method is used to determine the contribution of participant of lines transmission power and MVA-km method is used to determine the cost of participant transmission. Lines average apparent power flow is used in MVA-km method. three approaches to using MVA-km is defined in order to investigate the effect of reverse power of lines and how to calculate costs is presented by each approach. Simulation of the proposed method on the test network of 12 Bass is done. and the results of MW-km is compared with MVA-km. also, the results of these three approaches of MVA-km method were compared together and analysis their advantages and disadvantages