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Grid-forming converters (GFMCs) have emerged as enablers in modern power systems. However, they face the transient stability problem, which hinders them from successful fault ride-through (FRT) and potentially results in the system’s collapse. These problems have drawn increasing attention, leading to a rise in related research. To capture the advancements in the field, this paper reviews studies on the transient stability analysis and enhancement of GFMCs. In particular, the transient stabilities of GFMCs with first- and second-order power control modes are reviewed, and a comprehensive comparison of the two modes is provided. Additionally, this paper classifies the transient stability enhancement methods of GFMCs into six types: active power, reactive power, voltage amplitude, virtual impedance, inertia and damping regulations. Moreover, this paper summarizes the effects and limitations of each method from the perspective of practical application. Based on the analysis, this paper further discusses future research directions for the transient stability of GFMCs.
Chen et al. (Fri,) studied this question.