Modeling of STATCOM and UPFC for power system steady state operation and control

In recent years, energy, environment, deregulation of power utilities have delayed the construction of both generation facilities and new transmission lines. These problems have necessitated a change in traditional concepts and practices of power systems. There are emerging technologies available, which can help electric companies to deal with above problems. One of such technologies is flexible AC transmission systems (FACTS). Among the converter based FACTS devices static synchronous compensator (STATCOM) and unified power flow controller (UPFC) are the popular FACTS devices. Considering the practical application of the STATCOM and UPFC in power systems, it is of importance and interest to investigate the benefits as well as model these devices for power system steady state operation. We have performed the power flow study of a five bus study system without any FACTS devices and further analyzed it with the converter based FACTS controllers. Programming of the power flow studies stated above is implemented with MATLAB.