Journal of Electrical Engineering and Automation

With the growing adoption of renewable energy in microgrids, demand for hybrid AC/DC microgrids continues to rise. Solid-state transformers, as a novel power electronics device, efficiently convert electrical energy between AC and DC while offering advantages such as compact size, low losses, and wide regulation range, making them particularly suitable for hybrid AC/DC microgrid applications. This study investigates key technologies and benefits of solid-state transformers in hybrid AC/DC microgrids, exploring how they enhance system reliability, efficiency, and flexibility. By comparing their performance with traditional transformers in power conversion, control strategies, and stability aspects, the paper proposes optimization solutions and outlines their application prospects.

Solid state transformer; AC/DC hybrid microgrid; Power electronics; Energy conversion; System optimization