Evaluation of a module-integrated distributed battery energy storage system

This paper presents an evaluation of a module-integrated distributed battery energy storage system (BESS). Compared with the conventional centralized BESS, this paper provides a detailed evaluation of the module-integrated system merits and evaluates the charging, discharging and module balancing performance. A case study of a three-module system is used to demonstrate the functional performance of the module-integrated distributed BESS. It is verified through experiments that the module-integrated distributed BESS provides satisfied functional performance with additional advantages such as no extra equalizers or additional power converters, reduced power and voltage stresses of power electronic components, etc.