Effects of Current Limit for Grid Forming Converters on Transient Stability: Analysis and Solution

Grid forming control applied to power converters that interface storage or renewable generation the grid, has been identified as a potential solution facilitate substantial share of converter-based in system. Analyzing response grid (GFC) for large frequency, phase, and voltage events, particularly when GFC enters current limit operation, is very important system stability, but studies on this have limited. This paper presents quantitative illustrative analysis impact transient stability comprising GFC. Furthermore, based virtual active proposed improve margin limit. Finally, method enhance are verified by Power hardware loop (PHIL) experimental tests.