With　the　growing　demand　for　clean　energy,　hydrogen　has　emerged　as　a　key　zero-carbon　energy　carrier,　particularly　in　power-to-hydrogen　(P2H)　systems.　However,　the　safe　operation　of　hydrogen　storage　tanks-especially　during　rapid　charging/discharging-remains　a　critical　yet　understudied　challenge.　This　paper　proposes　an　optimized　electricity-hydrogen　network　model　that　ensures　thermal　safety　in　hydrogen　storage　tanks　during　rapid　charging/discharging.　The　framework　integrates　power　grid　and　pipeline　network　optimization　with　a　neural　network-based　thermal　surrogate　model.　Case　studies　show　the　model　prevents　hazardous　temperature　fluctuations　with　only　a　2.4%　cost　increase,　demonstrating　its　effectiveness　for　safe　hydrogen　system　operation.　©　2025　IEEE.