Power transmission line forest fire emergency point site selection method based on graph theory

The invention discloses a power transmission line forest fire emergency point site selection method based on a graph theory. The power transmission line forest fire emergency point site selection method comprises the steps of (1) dividing power transmission line forest fire prone and frequent regions, (2) selecting possible power transmission line forest fire frequent sites, (3) establishing a power transmission line forest fire emergency point site selection graph theory model, (4) establishing a mathematical power transmission line forest fire emergency point site selection model, (5) solving the mathematical power transmission line forest fire emergency point site selection model, and (6) selecting power transmission line forest fire emergency points. The power transmission line forest fire emergency point site selection method based on the graph theory has the advantages that the shortest time between the possible power transmission line forest fire frequent sites is calculated based on the graph theory, the power transmission line forest fire emergency points are selected scientifically and economically by use of the method so that a power transmission line forest fire emergency team can hurry to a forest fire site, and therefore, the influence of the forest fire on the power distribution line can be minimized and an efficient and economic technical method is provided for quickly putting out the power transmission line forest fire.