Power system planning for maximizing intermittent energy sources using AC model

As installed capacity of wind power has been increasing in the last decade, power system planners are exposed to the several challenges, with regard to the drawbacks for wind power usage because of the existing infrastructure. The transmission expansion planning (TEP) and reactive power planning (RPP) should be specified by considering the maximization of wind power usage as well as meeting load growth. In this study, a new methodology for TEP and RPP is proposed to minimize wind energy spilled due to the power system constraints such as voltage and transmission line limitations. For this reason, the power flow equations of AC model should be used. Because of the intractable nature of large scale optimization problems, the backward search approach is utilized. AC optimal power flow based economic dispatch is solved to determine optimal dispatches. The proposed methodology is illustrated on the IEEE-24 bus reliability test system to demonstrate the results.