Resilient Interconnected Microgrids for Subway Networks

This paper presents the design of resilient interconnected microgrids to provide clean and cheap energy to subway infrastructures during normal and emergency operational scenarios based on different mobility models. The proposed microgrid will include hybrid energy storage of flywheel and battery systems, which will provide flexible and adaptive energy supply in view of subway loads. The interconnected microgrids will ensure profitable operation with consideration of fluctuation of energy prices and the interactions among different utilities around the subways. In addition, the proposed solution will ensure sustained and high performance energy supply in different operational and mobility scenarios. Integrated control architecture is proposed to ensure local and supervisory control and management of the interconnected microgrids with best utilization of energy storage systems through braking moments. The proposed solution has been demonstrated using simulation and real data, where the achieved results confirm the effectiveness of the proposed control architecture in terms of cost, performance and resilience.