AC/DC Hybrid Microgrid Design with Emphasis on Safety and Stability

In the realm of advanced energy systems, the primary focus centers on the development of a meticulously designed AC/DC hybrid microgrid, with a steadfast commitment to prioritizing safety and stability. This research delves into the intricacies of crafting such a microgrid, tailored for remote islands highly vulnerable to typhoons and storms. Harnessing the substantial photovoltaic (PV) energy potential found in these island settings, the core objective is to establish a secure and reliable microgrid, all while keeping an eye on potential future expansions. Employing state-of-the-art optimization techniques and specialized microgrid tools, this study adeptly navigates the complexities of seamlessly integrating AC and DC hybrid components. The microgrid’s logical user interface(UI) is designed to smooth transitions between operational modes, allowing for dynamic load management and bolstering operational flexibility. Robust safety measures, including innovative mechanical logic and strengthened cyber security provisions, serve as safeguards against potential threats. Key highlights include the harmonious integration of variable renewable energy sources, the strategic deployment of a battery energy storage system (BESS) to ensure consistent stability, and the utilization of a sophisticated Internet of Things (IoT) controller for precise power distribution. An experimental installation was conducted on Coconut Island in Hawaii to validate these principles.