Study of a Multi-Active Bridge Converter for a Domestic Electrical Grid

This article presents the design and development of a three-port, three-phase Multi-Active Bridge (MAB) converter adapted for domestic applications. The primary goal is to establish an autonomous electrical energy storage system utilizing photovoltaic (PV) sources and hydrogen as the storage medium. The converter is strategically designed to facilitate energy exchanges between different renewable energy sources and the electrical loads within the structure. Composed of three three-phase inverters and a transformer for magnetic coupling, each port enables bidirectional power flow and is galvanically isolated. Energy flow regulation is achieved through phase shifting of control commands among the three inverters. This type of converter enables enhanced flexibility and efficiency in integrating renewable energy sources with domestic energy systems, thereby advancing the transition towards sustainable energy applications.