| Abstract: |
| he construction of integrated energy systems can help improve energy efciency and promote global energy transition. However, in recent years, the occurrence of extreme natural disasters has brought certain threats to the safe and
stable operation of the integrated energy system. Thus, it is necessary to improve the ability of the integrated energy
system to resist disasters, reduce disaster losses, and restore energy supply as soon as possible, i.e., improve its resilience. Considering the infuence of pre-disaster prevention measures and disaster-time operational measures on system disaster resilience and the correlation between the two, this paper proposes a system hardening strategy based
on three-layer robust optimization. The upper layer formulates the optimal hardening strategy of the system before
the disaster event occurs, the middle layer identifes the failed elements in the worst disaster situation, while the lower
layer realizes the system operational optimization by coordinating the energy storage charging and discharging plan
of each subsystem. The strategy can reduce the total supply shortage of the integrated energy system and improve
the fexibility of the system in the pre-disaster prevention and disaster resistance integration stages. |
| Key words: Integrated energy system, Natural disasters, Prevention–resistance, Resilience improvement, Robust
optimization |
| DOI：10.1186/s41601-023-00299-6 |
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| Fund:This work was supported in part by Key Project of Shanghai Science and
Technology Committee (18DZ1100303). |
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