Coordinated Control of Networked AC/DC Microgrids With Adaptive Virtual Inertia and Governor-Gain for Stability Enhancement

This article proposes an adaptive coordinated control strategy for the networked AC/DC microgrids (MGs) to enhance frequency and dc voltage stability of system while keeping proper power sharing. First, a based on synchronverter virtual machine (VDCM) converters connecting AC DC MGs is proposed, which consisted governor inertia regulator besides sharing controller. Following, in order performance, parameter design approach governor-gain proposed accordingly, are comprehensively determined by and/or voltage, rotor speed, rate change (ROCOF) (ROCOV). After that, small-signal analysis with investigated guide selection parameters. Finally, simulation experimental results demonstrate that method improves frequency/dc nadir dynamic performance system.