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Power distribution network risk assessment method in typhoon disasters based on space-time grid association

A technology of risk assessment and distribution network, applied in the field of distribution network, can solve the problem of insufficient disaster assessment ability of distribution network

Active Publication Date: 2019-05-21
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a distribution network risk assessment method based on space-time grid correlation under typhoon disasters, and solve the technical problem of insufficient distribution network disaster assessment capabilities in the prior art

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  • Power distribution network risk assessment method in typhoon disasters based on space-time grid association
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  • Power distribution network risk assessment method in typhoon disasters based on space-time grid association

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0027] This embodiment provides a distribution network risk assessment method based on spatio-temporal grid association under typhoon disasters, which can solve the technical problem of insufficient distribution network disaster assessment capability in the prior art.

[0028] Including the following steps:

[0029] Step 1: Carry out spatio-temporal grid division for the area where the distribution network is located. Spatial division processing: divide the area where the distribution network is located according to the latitude and longitude information. After division, the size of each grid is 3 kilometers * 3 kilometers. At the same time, the latitude and longitude coordinates of the center points of each grid are recorded to determine its geographical location. Time division processing: Due to the time-sensitive characteristics of typhoon disa...

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Abstract

The invention relates to a power distribution network risk assessment method in typhoon disasters based on space-time grid association, and belongs to the technical field of power distribution networks. The method comprises the following steps: firstly, carrying out space-time grid division processing on an area where the power distribution network is located; Integrating multi-source informationof the power distribution network under the typhoon disaster, including power distribution network tower equipment information, typhoon meteorological information, topographic information and underlying surface information; Secondly, performing space-time association processing according to the divided grids and the disaster information of the power distribution network; Furthermore, risk grids are screened out according to the wind speed information, and a power distribution network disaster evaluation index system is established.

Description

technical field [0001] The invention relates to a distribution network risk assessment method, in particular to a distribution network risk assessment method based on spatio-temporal grid association under typhoon disasters, and belongs to the technical field of distribution network. Background technique [0002] In recent years, typhoon disasters have occurred frequently in the southern coastal areas of China. The super typhoon "Sudiluo" landed in Xiuyu District, Putian City, Fujian Province on September 29, 2015, causing economic losses of 3.2 million US dollars and 38 deaths; the super typhoon "Cuckoo" landed in Meizhou Town, Putian City, Fujian Province on August 8, 2015. The previous typhoon landings have seriously endangered the normal operation of the power grid and seriously threatened the safety and stability of the distribution network. It is necessary to evaluate and improve the ability to resist and prevent disasters. [0003] Distribution network risk assessme...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
Inventor 岳东杨洲周霞林沪生窦春霞欧阳志友
Owner NANJING UNIV OF POSTS & TELECOMM