| Abstract |
Grid-tied inverters adopting virtual synchronous generator (VSG) control can provide frequency support for the power grid in a similar way to conventional synchronous generators. However, virtual inertia emulation also introduces an oscillatory mode. Various damping methods capable to assign closed-loop poles are proposed in the literature. In this paper, theoretical analyses and experimental results are presented to compare these methods, in respect of dynamic response and ripple attenuation ability. |
