Robust Control Design and Testing of Grid Forming Converter with Main Grid Disturbances

Abstract

This paper presents a comprehensive study on the role and performance of Inverter-Based Resources(IBRs) in grid stability, particularly focusing on the transition from Grid Following Mode (GFL) to Grid Forming Mode (GFM). The limitations of GFL, such as its inability to sustain disturbances and operate autonomously in weak grids, are discussed. The paper highlights the advantages of GFM, which allows IBRs to quickly respond to system changes, aiding in grid stabilization. While GFM is currently prevalent in islanded microgrids. In the context of the GC0137 standards, various GFM control strategies are tested on a test model and their performance is validated on MATLAB Simulink with different real time scenarios.