Frequency control through BESS and SOFC based fuel cell in a Multi source Microgrid

Modern day Power System Network with various Renewable and Non-conventional sources play a major role in real scenario. Being intermittent in nature these RE sources requires Energy storage devices like BESS, Fly wheel as a prerequisite for sophisticated operation of Power System. Penetration of these intermittent sources introduces huge challenge for safe frequency operation of Power System in Isolated mode of operation of DC Microgrid. In Grid Tied mode of operation the frequency can easily maintained with the help of Grid but in isolated mode maintaining the safe limit of frequency is a difficult task for power system Engineers. This paper discusses about the application of BESS in frequency control in an isolated DC Microgrid and a performance indicator-based Power Distribution Error (PDE) for Solid Oxide Fuel cell (SOFC). The novelty of the paper is to maintain the frequency of the system through Battery Energy Storage System (BESS) and SOFC based Fuel cell, whenever there is an integral action failure in case of Governor of Diesel Generator.