Optimal power flow control by converter based FACTS controllers

In this paper, general mathematical models for power converter-based FACTS controllers such as STATCOM, SSSC and UPFC suitable for optimal power flow study are established. There are several solution methods for OPF available, which include interior point methods. In this paper, the optimal power flow problem with these converter based FACTS controllers is solved by the newly developed nonlinear interior point methods, since they have been the most successful OPF methods.