Modeling and optimization method for cascading failure invulnerability of airspace sector network

Abstract

The invention defines airspace sector network cascade failure, adopts an improved capacity-load model, combines the network topology structure with the actual work of air traffic control, considers the flow and airspace structure to define the load of airspace sector network nodes, and the definition is more in line with air traffic control The actual sector node capacity. According to the cascading failure process of the airspace sector network, a model is constructed, and the critical threshold and sector abnormality rate are established to measure the invulnerability of the airspace sector network cascading failure. The cascading failure invulnerability of the airspace sector network is optimized by optimizing the load redistribution method, and the adjacent load redistribution and partial load redistribution strategies based on the remaining capacity are proposed. Taking the Zhongnan control sector network as an example to simulate the cascading failure process, the analysis shows that the sector nodes with large load capacity are close to each other, and the sector nodes with low degree and strength are likely to become failure bottlenecks, and at the same time find out the congestion bottleneck node; further simulations verify that both optimization strategies can reduce the critical threshold and sector abnormality rate.

Description

technical field [0001] The invention belongs to the technical field of air traffic management, in particular to an airspace sector network cascading failure invulnerability modeling and optimization method. Background technique [0002] With the rapid development of my country's civil aviation industry, the problem of air traffic congestion is becoming more and more serious. The decline or failure of a sector's capacity may lead to congestion in a large area of ​​airspace, which in turn will cause large-scale flight delays. On a certain day in August 2015, the high-altitude traffic control sector under the jurisdiction of the Virginia District Management Center failed due to a computer technical failure. Flights in major cities in the northeastern United States, including Washington, New York, Boston and Philadelphia, were delayed. Follow-up The delay extended to the entire east coast of the United States. Complex network theory has rich analytical theories and mature meth...

AI Technical Summary

Problems solved by technology

However, from the perspective of air traffic control, there is no research on systematically analyzing the cascading failure phenomenon and invulnerability of the airspace sector network to find strategies to alleviate air traffic congestion

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