Dynamic transfer capability analysis with wind farms and dynamic loads

This paper analyses the effects of different power system devices on the dynamic transfer capability of transmission lines under varying operating conditions. An investigation on the effect of dynamics loads, wind farms and flexible AC transmission system (FACTS) devices on the transfer capability of a heavily stressed power system is carried out. A comparative study on the enhancement of transfer capability by different types of FACTS devices is also presented. The analyses have been carried out using a test system comprised of three machines and two-areas. Based on these analyses and on the simulations results shown in this paper, it is possible to conclude that the available (dynamic) transfer capability (ATC) is not only limited by the thermal and voltage constrains, but also restricted by the dynamics of different power system devices and fault conditions.