Study of power system stability using thyristor controlled - Interphase power controller

Environmental, regulatory and economic constraints have restricted the growth of electric power transmission facilities, and the technologies to enlarge the levels of power transmission and enhance stability through existing transmission lines have become greatly needed. Many approaches have been proposed for solving the stability problems found in power system operations. Considering the diversity of both, the solutions and the problems, it is often difficult to identify the most suitable solution. The main purpose of this paper is to demonstrate the capability of IPC (Interphase Power Controller) as a mean for stability improvement in power systems. In this paper this device has been modeled. Based on this model it is demonstrated that the Thyristor Controlled Interphase Power Controller (TC-IPC) can be very effective to damp power system oscillations. Simulation results indicate the robustness of this Flexible AC Transmission System (FACTS) controller to the variation of system operating conditions too.