**Fazel Mohammadi**

Electrical and Computer Engineering (ECE) Department, University of Windsor, Windsor, ON N9B 1K3, Canada; fazel@uwindsor.ca or fazel.mohammadi@ieee.org

Received: 13 April 2020; Accepted: 16 April 2020; Published: 19 April 2020

**Abstract:** The Special Issue on "Integration of AC/DC Microgrids into Power Grids" is published. A total of six qualified papers are published in this Special Issue. The topics of the papers are the Optimal Power Flow (OPF), control, protection, and the operation of hybrid AC/DC microgrids. Nine researchers participated in this Special Issue. We hope that this Special Issue is helpful for sustainable energy applications.

**Keywords:** AC/DC Microgrids; Distributed Generations (DGs); Microgrid Control Systems; Power Systems Operation; Power Systems Optimization; Power Systems Planning; Power Systems Protection
