Wide-range configuration method, device and equipment for power grid resources and medium

The power grid resource large-range configuration method comprises the steps that a power grid is divided into a plurality of equivalent nodes according to a power grid distribution area, each equivalent node has a corresponding balance margin, and the balance margin is power capable of being provided by the equivalent nodes or power needed by the equivalent nodes; establishing a first resource scheduling model by taking the maximum sum of the target balance margins of all the equivalent nodes as a target, wherein the target balance margins are power actually provided by the equivalent nodes or power actually obtained by the equivalent nodes; establishing a second resource scheduling model by taking the minimum sum of the change values of the target transmission power and the initial transmission power of all tie lines as a target; obtaining the target balance margin of each equivalent node and the transmission power of each tie line by solving the first resource scheduling model and the second resource sched