Power transmission channel path optimization method considering geographical factors

Abstract

The invention discloses a power transmission channel path optimization method considering geographical factors, and belongs to the field of power transmission channel planning. A power transmission channel path optimization method considering geographical factors comprises the following steps: collecting geographical information of an area to be planned and existing grid structure information of apower transmission network, and establishing a top-layer power transmission channel planning model based on an existing grid structure; establishing a geographic information hierarchical structure model according to the properties of the geographic environment influence factors, performing gridding on a to-be-planned area, respectively solving each layer of weight values and comprehensive weightvalues of the influence factors by adopting an interval analytic hierarchy process, and assigning the weight values and the comprehensive weight values to each grid; establishing an underlying power transmission channel path optimization model by taking the geographic environment total cost as a target, searching a to-be-planned extended line optimization scheme through a Dijkstra algorithm, and constructing a to-be-selected power transmission path set; and calling a genetic algorithm to solve the top-layer power transmission channel planning model.

Description

technical field [0001] The invention relates to the field of power transmission channel planning, in particular to a method for optimizing the route of a power transmission channel considering geographical factors. Background technique [0002] my country's energy resources and energy demand are in a reverse distribution. This pattern determines that my country's energy cannot be balanced locally. In order to realize the optimal allocation of energy resources across the country, my country has gradually formed an energy allocation pattern of west-to-east power transmission and north-to-south power transmission. Respectively, the State Grid has formed "three AC and four direct", and the Southern Power Grid has formed an AC-DC hybrid transmission channel structure of "eight AC and eight direct". With the continuous growth of electricity demand and large-scale production of power supplies, the scope of networking and the scale of transmission networks are expanding, and the grid...

AI Technical Summary

Problems solved by technology

In the traditional power line design process, professional designers first collect line-related information, and then make a variety of alternatives based on personal technology and experience. After on-site investigation, they modify and select a more economical line. The time is long, the efficiency is low, and it is difficult to take into account the economic and technical issues such as construction conditions, topographic and geological conditions, environmental protection and sustainable development of the line. sex is not guaranteed

[0003] Existing transmission channel route optimization methods are limited to the route optimization of a single transmission line, and do not link the economics of transmission line construction with the security of the power grid, and do not consider the convenience of line construction traffic

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