To address the severe load interruption and economic losses caused by extreme disasters in port power distribution networks

this paper proposes a post-disaster emergency dispatch strategy for hydrogen-powered port distribution networks considering frequency constraints. First

an operational model for port hydrogen energy systems is established through quantitative analysis of reversible solid oxide cells and hydrogen storage stations

along with their interdependencies. Building upon this foundation

a multi-timescale emergency dispatch methodology is developed by incorporating electricity-hydrogen supply-demand relationships. Specifically

for long-term scheduling

nodal loads are subdivided into power-continuously adjustable controllable loads and uncontrollable loads determined by feeder switches

with multi-type load interruption constraints formulated. For short-term scheduling

frequency stability constraints are established considering the stochasticity and volatility of renewable energy generation and loads. Subsequently

the big-M method is employed to transform nonlinear constraints into a classical mixed-integer linear programming problem for solution. Case studies are conducted on a modified IEEE 33-node distribution network. Simulation results demonstrate that the proposed strategy can effectively reduce post-disaster losses while ensuring power supply reliability and grid security

offering a novel perspective for post-catastrophe energy restoration.