Dynamic Impact Assessment of High IBR Penetration and Grid Enhancement Technologies on Power Systems

The rapid transformation of power systems with increasing renewable energy integration presents unprecedented challenges for maintaining grid stability and reliability. As traditional synchronous generators are retired and replaced with inverter-based resources (IBRs), fundamental changes in system dynamic behavior are emerging that require comprehensive understanding and improved planning strategies. This paper develops a framework to systematically evaluate how increasing renewable penetration affects power system dynamic performance during contingency events, with particular emphasis on the locational variation of these impacts across different regions. The study also explores the effectiveness of Grid