110kV同塔六回输电线路电磁环境研究

Research on the Electromagnetic Environment of 110 kV Six-circuits Transmission Lines on the Same Tower

为了给110 kV同塔六回输电线路的建设和运行提供工程指导,深入研究了输电线路下方的电磁环境;在Matlab环境下,建立110 kV同塔六回线路模型,编程计算不同相序布置方式下的工频电场强度、工频磁感应强度和无线电干扰值,分析不同的相序布置对输电线路电磁环境的影响;验证了工程中采用的经验布置方式是较优的相序布置方式,并通过遍历所有的相序布置方式,找到了理论上最优的相序布置方式。

In order to provide guidance for construction and operation of 110 kV six-circuits transmission line on the same tower,the electromagnetic environment below the transmission lines is researched intensively;the model of 110 kV six-circuit transmission line on the same tower is established in Matlab,and the power frequency electric field intensity,the power frequency magnetic flux density and radio interference value under different phase sequence arrangements is calculated.The impacts of different phase sequence arrangements on electromagnetic environment around transmission lines are analyzed.The empirical phase sequence arrangement is validated to be the better optimized layout,and the most optimized one theoretically is found out by traveling all phase sequence arrangements.