Resilience oriented unit commitment considering Transportable Energy System under typhoon impact

Over the past years, more and more extreme weather events have been recorded across the globe. These events put thousands of people without electricity and cause utility companies lose millions of dollars. Therefore, power system resilience which focuses on high-impact, low-probability events become a crucial consideration for the system operator. This paper proposes a dayahead resilience oriented unit commitment that aimed to minimize the cost needed to mitigate the impact of typhoons. By using a weather-dependent fragility curve for the transmission components, the proposed framework can minimize system load shedding under typhoons. In order to address the high-impact nature of typhoon, robust optimization is used in our framework, which ensure the worst-case performance of unit commitment. The trilevel problem is reformulated to a bi-level robust problem using Column&Constraint Generation algorithm. To solve the intrinsic drawback of robust optimization in producing an over-conservative solution, the proposed model introduces Transportable Battery Energy System (TBES) to further improve the power system resilience under the proposed framework. RTS-24 system is used to demonstrate the effectiveness and efficiency of the proposed framework.