The invention provides a layered power distribution network fault
positioning system, method and device and a
server. The
system comprises a cloud layer, an edge layer and a terminal layer, the cloudlayer is provided with a
cloud server, the edge layer is provided with a plurality of
edge computing gateways, the terminal layer is provided with a plurality of terminal devices, one
cloud server correspondingly manages a plurality of sub-domains, and one
edge computing gateway correspondingly manages one sub-domain; the positioning method comprises the steps of domain positioning and fault pointaccurate positioning, an actual fault time matrix is established on an edge layer and uploaded, and the
cloud server compares the simulated fault time matrix with the actual fault time matrix, judgesfault domains and issues a fault
processing permission instruction to the fault domains. And then, the
edge computing gateway governing the fault sub-domain carries out fault point accurate positioning in the sub-domain. Thus, the cloud
server achieves task distribution of fault
processing through authority release, the
data processing load of the cloud
server and occupation of network bandwidthare reduced, the
system response capability is improved, and rapid fault
recovery is facilitated.