Multi-Level Control of a Static Synchronous Compensator Combined with a Smes Coil for Applications on Primary Frequency Control

MOLINA, MARCELO GUSTAVO; MERCADO, PEDRO ENRIQUE

Gramado

Congreso; XV Congresso Brasileiro de Automática; 2004

Universidade Federal de Rio Grande do Sul

At present, the advance of technology makes possible to include new energy storage devices in the electric power system. These energy storage systems can be incorporated into power electronic devices based on Flexible Alternating Current Transmission Systems (FACTS) using switching power converters. This combined system permit to independently exchange active and reactive power with the utility grid. In this way, a very effective primary frequency control can be carried out, which allows to reduce the generation reserve. This article proposes a multi-level control algorithm for a Static Synchronous Compensator (STATCOM) combined with Superconducting Magnetic Energy Storage (SMES) used for controlling the frequency of the power system. This multi-level control configuration allows dividing a complex control system into three comparative simpler subsystems, which are easier to design. A detailed model of the Static Synchronous Compensator with Superconducting Magnetic Energy Storage system is also presented. Dynamic systems simulation is used to study the performance of the proposed controls and models.