With　the　development　of　power　systems,　the　distribution　network,　as　an　important　link　in　power　supply,　has　become　increasingly　crucial　in　terms　of　stability　and　security.　To　further　improve　the　performance　of　ground　fault　identification,　this　paper　proposes　a　method　for　identifying　ground　faults　in　10kV　distribution　networks　based　on　the　FNN　model.　By　combining　the　characteristics　of　partial　fault　conditions　in　distribution　networks　and　based　on　actual　distribution　network　parameters,　a　10kV　distribution　network　model　is　built　in　PSCAD.　Various　ground　fault　sequence　simulations　are　conducted　by　introducing　a　fault　module　to　obtain　experimental　data.　Using　the　obtained　sample　data,　a　study　on　ground　fault　type　identification　in　distribution　networks　based　on　the　FNN　model　is　constructed.　The　experimental　results　show　that　the　loss　function　value　ranges　from　0.3　to　0.4,　with　an　overall　classification　accuracy　rate　exceeding　90%.　Furthermore,　compared　to　the　performance　of　other　models,　this　method　significantly　outperforms　other　models　in　terms　of　classification　results　for　this　type　of　task.　©　2025　IEEE.