Application of utility-connected battery energy storage system for integrated dynamic services

Abstract

The rapid uptake of renewable energy sources (RES) and displacement of synchronous generators is introducing a number of security challenges, particularly in terms of frequency and voltage stability, whose interactions in RES-dominated systems are to be fully understood yet. This paper models and discusses the application of utility-connected battery energy storage system (BESS) for provision of integrated dynamic services, i.e., simultaneous provision of primary frequency/active power and voltage/reactive power control. To investigate how BESS should respond to system contingencies, a detailed BESS dynamic model is presented along with comprehensive discussions on interaction of frequency a..