Earticle

초록

영어

Seismic disasters can cause systemic urban paralysis by destroying critical land-based power infrastructure. The catastrophic risk of such collapses was certainly demonstrated by the Great East Japan Earthquake of 2011. The loss of emergency cooling power, caused by the destruction of both external grids and backup generators, led to the Fukushima nuclear disaster. Furthermore, the 2024 Noto Peninsula earthquake revealed a significant vulnerability in transport systems. Rapid ground displacement and road destruction physically blocked the supply of generators, resulting in prolonged blackouts in isolated coastal areas. To overcome these vulnerabilities, this study proposes the use of semisubmersible Floating Energy Storage Systems(FESS). The FESS ensures high survivability by isolating the energy module from earthquake-induced destruction. Also, the semisubmersible structure has physical stability at sea due to its deep-draft. As modern smart cities increasingly pursue the construction of microgrids for energy independence, FESS will facilitate recovery from earthquakes. The FESS is connected to a pre-installed coastal emergency connection point. It can function as a starting point of Black Start, providing the essential reference voltage to restart Distributed Energy Resources(DERs) that have shut down. Through Grid-Forming Control, FESS establishes a stable voltage standard and synchronises the DERs, gradually restoring the smart city's microgrids. This enables critical infrastructure, such as nuclear power plant cooling systems and medical facilities, to be restored as a priority, even in the event of a power grid collapse. In conclusion, this study presents a practical framework for enhancing the resilience of smart cities by utilising FESS as an energy hub for rapid recovery.

저자

• Jinwoong Lee [ Korea University ]
• Seungjun Kim [ Korea University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국재난정보학회 학술발표대회

• 간기

  부정기

• 수록기간

  2005~2026

• 십진분류

  KDC 338 DDC 361