Integration of Supercapacitor and Flywheel along with Battery for High-Performance Hybrid Energy Storage System

Abstract

Abandoning fossil fuel-based transportation and substituting it with green energy, EVs play a major role in decarbonization. In this paper, a battery, flywheel and supercapacitor-based HESS is designed for EVs which includes electric-based, plug-in type and hybrid vehicles. This HESS combines a supercapacitor, flywheel and battery (Li-ion) along with some converters. The combination of these energy storing and generating devices not only tackle the demand of “high specific power density” and specific energy density, simultaneously needed for better performance of EVs and HEVs, but also reduce the cost of Electric vehicles in long-run. By combining these two-energy storing and generating devices with battery, we can provide the advantages of both the technologies and leads to more efficient ESS (energy storage system). This HESS provide high power and high energy density as the supercapacitor provides high power and fast response times, the flywheel also provides high power density and short duration energy storage and battery provides high energy density and long duration energy storage. This type of hybrid energy storage system is useful in applications where high power and energy density is required.