Virtual Inertia Control Strategy in Microgrid Stability Control: A Conceptual Synthesis and Discussion

Abstract

The integration of distributed generations in a smart microgrid distribution system as focused in recent times and considered as a solution towards the exponential rise of energy demands. However, the inverter-based energy sources lead to a weak power system in the sense of having low inertia. This, in turn, make the overall system more prone to instability. The related issues and challenges along with its remedial misuse in terms of control prospective need to be discussed thoroughly. On the above-related problems, this paper presents all possible virtual inertia topologies in the implementation stage. Apart from that, this paper explores potential research directions, major challenges, and technical analysis on the state-of-the-art of virtual inertia. Comparative analysis also discussed mentioning the merits and limitations of the topologies. To understand the concept, the related mathematical expressions and schematic diagrams of different topologies and control strategies are illustrated.