An Online Lyapunov-based Algorithm of Resource Sharing for Interconnected DC Nanogrids

In this paper, the resource sharing problem is considered for a network composed of interconnected dc nanogrids. Each nanogrid is equipped with photovoltaic (PV) energy and batteries. In order to improve the utilization of PV energy among the nanogrids, the amount decision of the sharing electricity needed to be made. An online Lyapunov-based algorithm of resource sharing among the interconnected dc nanogrids is proposed. The algorithm only needs to keep track of the current values of the PV generation, energy demand as well as battery level in each nanogrid. Simulation results show that the proposed algorithm can effectively improve the self-consumption of PV energy among the interconnected nanogrids with low computational complexity.