Grid-forming virtual synchronous generator （GFVSG）has certain virtual inertia and virtual damping support capabilities by introducing the rotor motion equation of synchronous generators

but it inevitably introduces active-power dynamic oscillation problems into the GFVSG grid-connected parallel systems.As one of the important improvement measures to effectively solve the active-power dynamic oscillation problems existing in the GFVSG grid-connected/parallel systems

transient damping methods have recently attracted widespread attention and have achieved rich theoretical research as well as practical application results.This paper analyzes the working principle and main role of transient damping methods in GFVSG control

summarizes the typical implementation methods and research status of transient damping methods

and analyzes

summarizes

and discusses the research prospects

possible challenges may be faced

and key technical problems that need to be overcome in the future of transient damping methods.