Distributed Cooperative Droop Control for Seamless Islanding of an Autonomous Microgrid

The droop control under peer-to-peer (P2P) control mode, which does not need communication exchange and modes transfer, is more widely adopted recently. Especially, the distributed secondary control based on fully decentralized primary droop control attracts more attentions and deserves further investigation. Hence, a new distributed cooperative droop control is proposed to realize seamless islanding and maintain stability of the autonomous microgrid (MG) using pinning consensus of multi-agent system (MAS) in this study, it converts the secondary control to a pinning-based distributed control instead of a centralized control, and the control processing can be transformed into keeping track of synchronization, so as to reach the expected consensus through pinning and recover the frequency to rated value with zero steady-state error. Multiple cases are carried on to demonstrate the applicability and availability of the proposed control scheme.