بهبود پايداري گذراي سيستمهاي قدرت با استفاده از استراتژي كنترل بهينه بر روي جبران كننده سنكرون استاتيكي

Power System Transient Stability Improvement Using Optimal Control of Static Synchronous Compensator

The development and use of FACTS devices for power transmission system has led to the application of these controllers to improve the stability of power systems. This paper discusses the optimal control of static compensator (STATCOM) to improve transient stability. To demonstrate the ability of the proposed control strategy, it has been applied on a single machine and multi machine power systems. Different modes of operation of compensator regarding the modulation of active and reactive power has been considered. In multi machine system, since the control signal based on the state variable is not available at the compensator bus, the derivative of an electric quantity derived from local measurement has been utilized.