Transmission investment cost allocation in electricity markets considering active power reserves and N-1 contingency

Tóm tắt

In the electricity market operation, allocating the investment cost of transmission assets is a critical issue. To allocate the investment cost to network users, it is important to exactly determine the contribution of these users to the power flows in the transmission grids. The amount of transmission capacity of lines utilized by network users considerably alters in the normal operation conditions as well as the N-1 contingency conditions; likewise, this usage level is also dissimilar in the present and in the future. In addition, the transmission capacity of lines cannot always be utilized by market participants. Moreover, the presence of active power reserve market in power systems complicates transmission charge matters in the wholesale electricity market. In this paper, a qualified method has been suggested for allocation of the investment cost more equitably. The calculated results are evaluated on a 6-bus system.