Power transmission network frame planning method considering different functional attributes

The invention discloses a power transmission network frame planning method considering different functional attributes. The method comprises the following steps: constructing a new energy output and load model of a to-be-planned power grid according to acquired wind speed data; calculating to obtain a plurality of wind power output typical scenes; establishing a multi-target power transmission network structure planning model according to four functional attributes of new energy consumption, load center power supply, water and electricity delivery and channel interconnection of the power grid;solving the model according to the wind power average output per unit value in each typical scene, the average load size in each typical scene and the occurrence probability of each typical scene; obtaining a plurality of grid structure planning schemes, then calculating the closeness of each scheme by adopting a multi-objective decision-making method based on entropy weight, and taking the scheme with the maximum closen