Islanded DC Microgrid Architecture with Dual Active Bridge Converter‐Based Power Management Units and Time Slot‐Based Control Interface

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Abstract
This article presents an efficient design architecture of an islanded and scalable DC microgrid comprising several power management units (PMUs) and a time slot‐based control interface. There are two primary sections in this manuscript—performance analysis of a microgrid design with phase shift modulation (PSM)‐controlled dual active bridge (DAB) converter‐based PMUs to charge Li‐ion battery energy systems and design of a time slot‐based control scheme to regulate the operation of PMUs for future applications. The batteries can act as the power sources in home energy management systems, transactive energy systems and so on. The PMUs are connected in parallel to a capacitive bus, which is supplied power by a photovoltaic (PV) energy source. There is a maximum power point tracking (MPPT) control block, which is constituted by a perturb and observe (P & O) algorithm and boost converter average model. For performance evaluations, the DAB‐based microgrid design is developed and tested in MATLAB/Simulink [textregistered]. In the second section, the control interface design is illustrated and explained with the constituent algorithms. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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