Method for acquiring influence situation of disaster on power distribution network

Abstract

The invention provides a method for acquiring the influence situation of a disaster on a power distribution network. According to the technical scheme of the invention, each disaster of the power distribution network is subjected to situation grading, and then a quantitative index is determined. According to the analytic hierarchy process, the influence sub-situation of each disaster is synthesized, and then the power supply situation rating of the power distribution network and the comprehensive evaluation score of an optimization scheme are determined. According to the power supply situation rating of the power distribution network and the comprehensive evaluation score of the optimization scheme, the influence situation result of the disaster is obtained based on a grey correlation method. The method is strong in adaptability, and the quantitative description of the influence situation of each of various equipments can be accurately and effectively realized. The perceiving, reasoning and analyzing on the operation situation under the influences of disaster conditions can be reliably realized. The operation change of the power distribution network can be analyzed and reasoned, while the influence of the disaster can be comprehensively and quantitatively considered. As a result, the method provides an accurate, comprehensive and reliable data basis for the disaster defense and treatment of the power distribution network. Meanwhile, the disaster prevention and treatment efficiency of the power distribution network is improved. The safety and the operation reliability of the power distribution network are improved.

Description

technical field [0001] The invention relates to a situation awareness analysis technology for distribution network operation level in the field of intelligent distribution network, in particular to a method for acquiring the situation of disasters affecting distribution network. Background technique [0002] High-quality and reliable power supply is one of the key objectives of distribution network operation. Limited by technical conditions, it is difficult for the traditional distribution network to achieve continuous and stable power supply under disaster conditions, and can only rely on the passive defense mode of emergency repairs after the event. Under the background of frequent natural disasters caused by global climate change, the distribution network urgently needs Develop proactive disaster prevention technologies to reduce major losses caused by disasters. [0003] Natural disasters that can cause damage to the power grid include typhoon, heavy rain, tsunami, floo...

AI Technical Summary

Problems solved by technology

However, for power grids where power transmission and distribution equipment may be affected and damaged by disasters, only emergency plans and dispatching control measures are not enough. In order to effectively improve the power grid's ability to resist disasters, it is necessary to strengthen research on power grid operation situation analysis.

[0005] At present, although advanced applications such as distribution automation, production command, and emergency systems have been partially established in the distribution network, they are mainly based on contingency plans and passive emergency repair ideas, and due to insufficient data collection, poor quality, limited considerations, and lack of multiple factors / Multi-dimensional / multi-objective disaster situation awareness and prediction capabilities, poor situation visualization and interactive functions, insufficient disaster prevention methods, lack of system, it is difficult for the distribution network to effectively respond to the demand for power supply guarantee under disaster conditions, and disaster conditions are urgently needed Research on the situational awareness of distribution network operation under the conditions of the distribution network, providing support for disaster active defense technology

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