Advanced Modelling and Optimal Operation Method of AC/DC Hybrid Microgrid with Multi-port Energy Router

Abstract:
The hybrid AC/DC microgrid is becoming much attractive due to the increase of modern DC loads and renewable energy sources with energy storage being integrated into the system. Coupling the two subgrids and arriving at a higher efficiency in system-level operation generally require flexible control strategies for multi-port energy router between two subgrids, which often serves as a crucial coordination role in the aspect of efficient power management, improved power quality, and seamless mode transfer. However, in terms of the energy management and system reliability, hybrid microgrid still faces many challenges. Therefore, this project mainly focuses on the optimization framework and analysis method as well as the control methods of hybrid microgrid integrating renewable energies. In this project, an advanced model of an multi-port energy router for hybrid microgrid is established, and the steady-state and dynamic performance of multi-port energy router are analyzed. The advanced control strategy of multi-port energy router is developed to improve the energy efficiency, power quality and provide the support capability between AC subgrid and DC subgrid.

Funding:  China Scholarship Council (CSC)