Abstract- Adoption of renewable energy sources significantly increasing and has become the most preferred for upgrading and modernizing the energy sector across the world. Failure of energy system leads to the blackout on large scale applications, and security or personal losses on small scale. The need for maintaining the credibility and consistency of the energy system for its proper functioning along with the efficiency accompaniments of sources of renewable energy has led to the emergence of an intelligent battery management system. For hybrid energy sources, EMS must have some control units to monitor and sense the behaviour of hybrid energy sources and control accordingly. In this system, the super capacitor plays the role of supplementary energy storage, which supplies the over and uneven demands; whereas the role of the battery is still as a main energy storage device. The structure and performance of the super-capacitor in a hybrid energy system will be discussed analytically under various scenarios. Recently the role of super-capacitors has become more fascinating in areas of the transportation and other energy sectors. The one primary concern in HESS is the utilization of batteries with super-capacitor. In economic sectors too, renewable energy sources are becoming a major investment and growth in the global market.

Keywords: Battery, Energy Management System (EMS), Hybrid Energy Storage System (HESS), Super-capacitor, Maximum Power Point Tracker (MPPT).

| DOI: 10.17148/IARJSET.2021.8653