Resilience Enhancement Method in Coupled Power and Transportation Systems with Mobile Energy Resources during Hurricanes

초록

Over the past years, extreme weather events have become a major cause of power outages across the globe. To mitigate these impacts on the power system, power system operators must ensure power system resilience to cope with high-impact, low-probability events. This paper presents a resilience enhancement method in a power system with mobile emergency resources (MERs) under hurricanes. The proposed method formulates a stochastic unit commitment (SUC) problem with explicit modeling of predicted risks caused by extreme wind. Contingency scenarios are selected considering not only the impact of an element failure on the entire network but also how close the electrical distance between element failures on the network. Simulations are conducted on Jeju Island power system with transportation networks, and MERs are used to mitigate potential system risks in advance by leveraging their mobility during hurricanes. The simulation result shows that the proposed method can enhance power system resilience during hurricanes without requiring expensive system hardening.

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