Resiliency-Based Planning for Interconnected Lunar Microgrids using Hybrid-Edge Rewiring
Balaji Guddanti, Rajarshi Roychowdhury, Mahesh S. Illindala · 2022
Reliable power system network is necessary to meet the needs of the ongoing research establishments on the lunar surface. Interconnected microgrids on the lunar surface will help in load sharing during extreme failure events. However, detailed system-level planning including network resiliency is crucial to make the system survive during high-impact low probability events. A three-stage graph theory-based planning methodology for the interconnected lunar microgrid network is proposed to maximize the network resiliency and minimize the load shedding. The methodology utilizes the hybrid-edge rewiring technique to identify the potential connections between the individual microgrids and secondary lines to enhance the lunar microgrid resiliency. A directed-weighted graph model approach is used to represent the interconnected lunar microgrid network. Various graph theory metrics are used to quantify the resiliency of the interconnected microgrid network. Different case studies are conducted to identify the potential connections for the zonal microgrid of the interconnected lunar microgrid network.