Damping inter-area oscillation using a battery energy storage system

The paper describes some control strategies developed for battery energy storage systems (BESS) to damp inter-area oscillation, a growing problem to many utilities in the world, as more and more are dependent on interconnections. This paper describes the use of several control strategies of using different damping signals and controllers such as PI controllers and novel artificial intelligence control techniques such as fuzzy logic control to modulate the active and reactive power outputs of the BESS. Preliminary studies show that both types of controllers can provide significant damping. This paper also discusses how to determine the best location for placing BESS to damp inter-area oscillation, particularly when different control strategies are used