Operational Cost Value Assessment and Value Based Stacked Energy Storage Management For Active Power Distribution Systems

In this paper, a formal procedure to evaluate the operational value of ancillary services provided by battery energy storage systems is presented along with a methodology on how to schedule the battery considering maximum benefits. The ancillary services considered are photovoltaic (PV) power output smoothing, voltage support and energy time shift (ETS). The benefits provided by energy storage applications are quantified in terms of monetary value. First, the issues related to such value studies are mentioned and a method has been proposed to resolve these issues. Second, utilizing the value information, an optimization method is developed to modify the algorithms for energy storage applications. It has been concluded that monetary value of different energy storage applications provides additional information that can be used schedule energy storage applications to yield maximum cost benefit of the applications. Results obtained using the field validated simulation model show the potential of proposed method.