Role of Supercapacitor Energy Storage in DC Microgrid

Recently, energy storage technologies are not only protruded as sources of energy rather; these technologies provide a great contribution to improve the stability, power quality and reliability in the electrical system. The high utilizing of renewable energy sources can be harnessed by using these energy storage systems. This paper shows the role of supercapacitor in DC Microgrid to be stable under partial shading issue. For studying the effect of adding supercapacitor, the microgrid system is simulated with and even without supercapacitor. The fluctuations of the DC link bus voltage of the microgrid is reduced as a result of integration with   supercapacitor unit. The simulation results approve that supercapacitor improve the DC microgrid stability.