Allocation of Synchronous Condenser for optimizing overcurrent capabilities in inverter base resources integrated grid

The rapid integration of Inverter-Based Resources (IBR) into power grids, driven by the rise in renewable energy sources, poses significant challenges to grid stability due to the inherent limitations of inertia, overcurrent capabilities and reactive power control in these resources. This research proposes the integration of IBRs and Synchronous Condensers into a Grid Strengthening Setup (GSI), where the Synchronous Condenser regulates terminal voltage, providing essential inertia and overcurrent capabilities, while IBRs regulate frequency. The study focuses on the power system network of the Faroe Islands, a small and isolated grid heavily dependent on diesel generators. As the region aims to shift towards renewable energy, Synchronous Condensers become a crucial consideration to mitigate the loss of inertia and reactive power control resulting from decommissioning diesel power plants. The project entails identifying the weakest Point of Interconnection (POI) and strategically allocating Synchronous Condensers in the Faroe Islands' power network. The methodology involves short circuit analysis using MATLAB, calculating Short Circuit Ratios (SCR), and introducing Weighted Short Circuit Ratios (WSCR) to gauge grid strength. Allocation decisions will be based on comparing SCR and WSCR at different positions in the power system. This research, positioned at the intersection of advancements in grid-forming technologies and the decentralization of power systems, renews the significance of Synchronous Condensers in addressing challenges posed by IBR integration. The outcomes aim to enhance the stability and strength of the isolated power system network in the Faroe Islands, facilitating a seamless transition from diesel-fired generators to renewable energy sources.