Characteristics of Parallel Inverters Applying Virtual Synchronous Generator Control

The virtual synchronous generator (VSG) is a promising way to deal with the lack of physical inertia and damping introduced by power-electronic-based power supply system. However, characteristics may be complicated in paralleled VSG system due stiff grid interactions between control inverters. In this paper, dynamics parallel inverters VSGs studied. equivalent are derived analyzed detail considering both changing set-points load disturbance, where transient sharing also investigated. Furthermore, better achieved an switching strategy. Experimental results verify effectiveness analysis proposed