Adaptive and Integrated PV Output control with Battery Energy Storage

Abstract

An adaptive control system for battery integrated PV generation is designed to reduce the fluctuating in PV power production. The core component of the system is a four-layer power control system (PCS) for Battery Energy Storage (BES). BES responds to the power dispatch commands from PCS and charges/discharges to mitigate variations in PV power output. As a core part of the system, a novel PV power smoothing algorithm is proposed to reduce battery capacity requirements and reduce battery life losses by adaptively adjusting control parameter settings based on real-time system characteristics. Extensive simulation results based on real PV generation data have been presented to justify the effectiveness of the proposed approach and to show how several key parameters affect its performance.