Abstract
This paper introduces a modular testbed to simulate AC/DC microgrids. The testbed is implemented in Matlab Simulink and is based on the energetic macroscopic representation (EMR) formalism. It is designed to be a tool to evaluate energy management strategies in AC/DC microgrids. The microgrid simulation model includes a photovoltaic generator, a fuel cell system, ultracapacitors, and batteries on the DC side. It includes voltage source converters (VSC) to couple the DC side with the AC side of the microgrid, which includes a variable AC load and a synchronous generator. Two case studies illustrate the use of the testbed. The model is implemented in Matlab Simulink and made openly available for the scientific community. Using this model, researchers can develop and evaluate energy management strategies in AC/DC microgrids.
Highlights
Electric power systems are progressively evolving from a generation, transmission, and distribution system almost exclusively based on AC, to hybrid configurations, where DC is gaining importance.In a few decades, DC systems could even dominate AC, and many reasons indicate that such a power system can become a reality
Synchronous generators (SG) implemented in the testbedisisbased based on the equivalent circuit presented in Figure coupled to doubly-fed induction generators (DFIG), of which the operating principle is similar to SG
From the point of common coupling (PCC) point of view, the microgrid is composed of four components: two DC hybrid sources connected through voltage source converters, the synchronous generator, and the load
Summary
Electric power systems are progressively evolving from a generation, transmission, and distribution system almost exclusively based on AC, to hybrid configurations, where DC is gaining importance. Simulation testbeds of a fuel cell ultracapacitor-battery (FC-UC-battery) hybrid locomotive and HEV are presented in references [20,21] These models are developed in Matlab Simulink and are openly available to download. They allow researchers to evaluate and compare different energy management strategies. Reference [26] proposes the optimization of smart grids considering market requirements These recent research activities demonstrate the interest of developing and making openly available simulation testbeds, allowing the scientific community to evaluate and compare results under the same conditions. The present paper introduces the energetic macroscopic representation (EMR) as a powerful formalism to organize models, identify control loops, and evaluate control and energy management strategies in AC/DC microgrids.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
