Abstract: Provided is a method for load transfer for an open-loop power grid. The method includes: constructing a tree graph for the power grid based on power transmission among devices in the power grid; determining a target node representing a target device which triggers load transfer in the open-loop power grid; determining one or more target graphs; enumerating all transfer schemes for the target graphs based on the target graphs, and prioritizing the transfer schemes; and performing load transfer based on the prioritized transfer schemes.

Abstract: Provided is a method for detecting overloading of devices for load transfer in an open-loop power grid, including: constructing a power supply tree graph; determining a target device and a standby power supply; determining a target node, a target set, and one or more target subsets; for each of the target subsets, determining nodes in said target subset between which the parent-child relationship is reversed due to the load transfer, and performing overload detection on each device corresponding to one of the nodes or an edge on a path connecting the nodes; and determining two nodes between which a direct parent-child relationship is generated from nonexistence due to the load transfer, and performing overload detection on each device corresponding to a node or an edge on a path connecting a parent node of the two nodes and a common parent node.