An integrated approach for placement of batteries in distribution network

Abstract

That storage devices like batteries can substantially improve performance of power distribution system is well established. These improvement can include attributes like reduction in line loading, reduction in losses, improved voltage profile, better voltage control by minimizing voltage deviations, reactive power and load leveling. The extent of improvement can provide clue to placement of the batteries. In the literature, the placement are generally based on only considering one of these attributes. This paper attempts to take an integrated approach considering simultaneous effect of all the above attributes. The feasible plans are generated by eliminating infeasible plans. Analytical Hierarchy Process (AHP) is used to assign the weights to different attributes. Data Envelop Analysis (DEA) is used to judge the feasible plans on common platform considering normalized values of the attributes. The plans with high efficiency can help in decision on placement in an integrated manner with proper tradeoff of attributes. The proposed methodology is illustrated on a IEEE 14 and 30 bus distribution system.