Intentional Controlled Islanding of Power Systems Equipped With Battery Energy Storage Systems

Grid-scale Battery Energy Storage Systems(BESSs) are gaining increasing consideration over the last fewyears since their connection has been shown to improve thedynamic behavior of the power grid. However, existingIntentional Controlled Islanding (ICI) approaches do notconsider the changes in structure and operation that modernpower systems are experiencing due to the increasing integrationof grid-scale BESSs. In this paper a previously proposed ICIalgorithm (for minimal power-flow disruption) is modified toconsider the impact of BESSs on the power system. Morespecifically, the proposed modified ICI algorithm aims todetermine the optimal islanding solution that minimizes thepower imbalance between the generation (i.e., synchronousgenerators and the BESSs) and the consumption (i.e., loads andBESSs) within each island. This is achieved through determiningthe island that each BESS should be, and the optimal activepower set-points for the BESSs that minimize the powerimbalance in the formed islands.