Coastal area wind prevention security power grid frame construction method based on graph theory algorithm

Abstract

Disclosed is a coastal area wind prevention security power grid frame construction method based on a graph theory algorithm. The coastal area wind prevention security power grid frame construction method based on the graph theory algorithm includes: using a graph theory path search algorithm to identify power grid frame topology structures of 220KV and above for current and planned power grids, obtaining important degrees of each station and each circuit in topology for normal running and rapid power restoration, and forming a core backbone grid frame of 220V and above in a regional power grid; simultaneously, combing an important user power supply route, selecting a key station and a key circuit which supply power for important users according to a distribution situation and differentiation of the important users, and forming an important user security power supply radiation type fishbone grid frame; then, selecting a contact circuit of a center urban area and an outer area according to grid frame security requirements; finally, organically combining the core backbone grid frame, the radiation type fishbone grid frame and the contact circuit of the center urban area and the outer area so as to construct a coastal area wind prevention security power grid frame. The coastal area wind prevention security power grid frame construction method based on the graph theory algorithm can effectively improve the ability of the regional power grid of withstanding intrusion of natural hazards of typhoons and the like, guaranteeing the important users and supplying power for areas.

Description

technical field [0001] The invention relates to a method for constructing a windproof and security grid grid in coastal areas, in particular to a method for building a grid structure for windproof and security grids in coastal areas based on graph theory algorithms. Background technique [0002] The coastal provinces in southern China, such as Guangdong, are located in the subtropical subtropics and are located on the main path of tropical cyclones landing in the Northwest Pacific Ocean on the Asian continent. Tropical cyclone activities are extremely frequent. Statistics show that the annual average number of tropical cyclones landing in Guangdong is about 3.65 per year, and the number of previous strong typhoons The landfall has caused major damage to the power grid in the coastal areas of Guangdong. [0003] The methods of resisting typhoons for power grids in coastal areas include rationally arranging the operation mode, strengthening the base of towers, installing windp...

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Problems solved by technology

[0004] However, with the increase of severe weather in the world, comprehensively resisting typhoons will consume a lot of manpower and material resources, resulting in a disproportionate relationship between the investment in power grid disaster resistance and the benefits of disaster reduction. Ensure the security of the main network, the security of power supply in the central urban area, and the reliable power supply of important users

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