A c c e p t e d M a n u s c r i p t 2 This paper presents interactive smart battery-based storage (BBS) for wind generator (WG) and Photovoltaic (PV) systems. The BBS is composed of an Asymmetric Cascaded H-Bridge Multilevel Inverter (ACMI) with staircase modulation. The structure is parallel to the WG and PV systems, allowing the ACMI to have a reduction in power losses compared to the usual solution for storage connected at the DC-link of the converter for WG or PV systems.Moreover, the BBS is embedded with a decision algorithm running real-time energy costs, plus a battery state-of-charge (SOC) manager and power quality (PQ) capabilities, making the described system in this paper very interactive, smart and multi-functional. The paper describes how BBS interacts with the WG and PV and how its performance is improved. Experimental results are presented showing the efficacy of this battery-based storage for renewable energy applications.
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