With rapid development of air transportation,the airspace structure of the future will need to be flexible and dynamic to accommodate the increase in traffic demand.The corridors-in-the-sky has become a new technology...With rapid development of air transportation,the airspace structure of the future will need to be flexible and dynamic to accommodate the increase in traffic demand.The corridors-in-the-sky has become a new technology to support the full exploitation and utilization of airspace resources.This paper proposes a method of designing corridor,identifying congestion state,and analyzing the influence of air routes’traffic flow.From this,we have reached a number of conclusions.(1)The congestion periods present the multi-peak"wavy"scattered distributions and the peaks back-end agglomeration characteristics in the whole day.(2)The congestion segments present the structural characteristics of unbalanced coverage and concentrated distribution to the crossing points.The corridors with high congestion level present as an italic"N-shaped"frame,which presents incomplete penetration of short segments.(3)For the temporal and spatial interaction,there are two types of congestion segments,and there are some common congestion periods in different congestion segments of multiple corridors.The high-density air route plays a relatively decisive role in corridor congestion,and the influence of two directions is unbalanced.This research can provide a basis for the dynamic evaluation of China’s airspace resources and corridors construction in the future.展开更多
交直流同塔线路混合电场是决定导线对地高度和走廊宽度从而进行线路优化设计的重要因素。由于其地面横向分布是交流分量和直流分量共同作用的结果,因此其分布特性与两者的叠加和分布特点有着密切的联系。以两回330 k V、750 k V交流线...交直流同塔线路混合电场是决定导线对地高度和走廊宽度从而进行线路优化设计的重要因素。由于其地面横向分布是交流分量和直流分量共同作用的结果,因此其分布特性与两者的叠加和分布特点有着密切的联系。以两回330 k V、750 k V交流线路分别与单回?1100 k V直流线路同塔架设为例,分析了交流线路在不同布置方式与相序排列方式下地面混合电场的分布特性与规律,并据此计算了导线对地最小高度和走廊宽度。结果表明,根据混合电场交、直分量的横向衰减特性,从走廊中心向外,地面混合电场可分为交流分量占主导的"交流区",交、直流分量比例相当的"混合过渡区"以及直流分量占主导的"直流区",为保证地面交、直流分量"错峰"布置,两回交流线路应采用垂直或倒三角排布方式,此时导线最小对地高度按照交流线路单独运行时的情况设计即可。当交流为750 kV线路时,走廊宽度主要由交流电场控制;交流为330 kV线路时,走廊宽度则由交直流电场分量共同控制。最终推荐采用垂直排布的相序6和倒三角排布的相序4两种布置方式。展开更多
基金National Natural Science Foundation of China,No.41671121
文摘With rapid development of air transportation,the airspace structure of the future will need to be flexible and dynamic to accommodate the increase in traffic demand.The corridors-in-the-sky has become a new technology to support the full exploitation and utilization of airspace resources.This paper proposes a method of designing corridor,identifying congestion state,and analyzing the influence of air routes’traffic flow.From this,we have reached a number of conclusions.(1)The congestion periods present the multi-peak"wavy"scattered distributions and the peaks back-end agglomeration characteristics in the whole day.(2)The congestion segments present the structural characteristics of unbalanced coverage and concentrated distribution to the crossing points.The corridors with high congestion level present as an italic"N-shaped"frame,which presents incomplete penetration of short segments.(3)For the temporal and spatial interaction,there are two types of congestion segments,and there are some common congestion periods in different congestion segments of multiple corridors.The high-density air route plays a relatively decisive role in corridor congestion,and the influence of two directions is unbalanced.This research can provide a basis for the dynamic evaluation of China’s airspace resources and corridors construction in the future.
文摘交直流同塔线路混合电场是决定导线对地高度和走廊宽度从而进行线路优化设计的重要因素。由于其地面横向分布是交流分量和直流分量共同作用的结果,因此其分布特性与两者的叠加和分布特点有着密切的联系。以两回330 k V、750 k V交流线路分别与单回?1100 k V直流线路同塔架设为例,分析了交流线路在不同布置方式与相序排列方式下地面混合电场的分布特性与规律,并据此计算了导线对地最小高度和走廊宽度。结果表明,根据混合电场交、直分量的横向衰减特性,从走廊中心向外,地面混合电场可分为交流分量占主导的"交流区",交、直流分量比例相当的"混合过渡区"以及直流分量占主导的"直流区",为保证地面交、直流分量"错峰"布置,两回交流线路应采用垂直或倒三角排布方式,此时导线最小对地高度按照交流线路单独运行时的情况设计即可。当交流为750 kV线路时,走廊宽度主要由交流电场控制;交流为330 kV线路时,走廊宽度则由交直流电场分量共同控制。最终推荐采用垂直排布的相序6和倒三角排布的相序4两种布置方式。
