A Communication-Free Master-Slave Microgrid with Power Sharing

TL;DR

This paper proposes a communication-free master-slave microgrid design using grid-supporting inverters and a synchronous generator, enabling stable power sharing and seamless mode transitions without communication.

Contribution

It introduces a novel microgrid architecture that achieves power sharing and mode transition without communication, enhancing reliability and simplicity.

Findings

Achieves power sharing without communication.

Maintains synchronization during mode transitions.

Operates seamlessly between islanded and grid-connected modes.

Abstract

In this paper a design of a master-slave microgrid consisting of grid-supporting current source inverters and a synchronous generator is proposed. The inverters are following the frequency of the grid imposed by the synchronous generator. Hence, the proposed structure of the microgrid is steadily synchronized. We show that the method achieves power sharing without the need of communication. Furthermore, no change in operation mode is needed during transitions of the microgrid between islanded and grid-connected modes.