Optimal Design and Energy Management for Hybrid Wind-Solar PV based Renewable Energy System with Battery Storage: A Review

Renewable energy sources are the alternative sources for electrical power generation which have been available since many years ago. Due to intermittent nature of renewable energy systems when installed independently these renewable energy sources are not that much reliable which in turn failed to meet load demand. The combined operation of any two alternative sources of energy namely wind energy based system and solar photovoltaic system can meet the energy demand as these systems are having great potential when compared With other energy sources. Hybrid renewable energy system along with battery has scope of enhancing system reliability, availability of power, quality of power supply and also system operational efficiency. The operation of renewable energy systems in ON grid mode and OFF grid mode may result in different power quality related problems such as voltage variations, power frequency variations and harmonics which have severe impact during unfavorable conditions in the grid. Hybrid renewable energy system encounters several technical challenges which require a broad research in several areas like system configurations, energy management, battery charging/discharging management, power electronics topologies and control strategies. The objective of this paper is to report a review of a research carried and various conclusions which are presented in the literature on hybrid renewable energy system based on wind energy - solar PV system along with battery regarding the configuration of the system, energy management, battery charging/discharging management, various topologies of power electronics and different control strategies. This article discusses about the scope of future developments and further research on hybrid renewable energy systems.