Controlling a Static Synchronous Compensator with Superconducting Magnetic Energy Storage for Applications on Primary Frequency Control

−− At present, the advance of technology makes possible to include new energy storage devices in the electric power system. In addition, with the aid of power electronics devices, it is possible to independently exchange active and reactive power with the utility grid. This allows to perform a more effective primary frequency control and also to reduce the reserve power of generators. In this article, a model is presented of a Static Synchronous Compensator (STATCOM) with Superconducting Magnetic Energy Storage (SMES) used for controlling the primary frequency of the utility system. Moreover, a control algorithm for both devices is proposed. The performance of the presented STATCOM/SMES system is evaluated by using a test power system through the dynamic simulation in case of a tie-line tripping. Keywords−− Primary Frequency Control, Energy Storage, SMES, STATCOM, Control Algorithm.