CAJ | 학술논문

500 kV交直流线路是当前电力输送的主要通道，雷击跳闸是500 kV线路跳闸的主要原因。使用电磁暂态软件ATP-EMTP对500 kV交直流线路的雷击机理进行仿真，通过对500 kV线路反击和绕击特性的比较和研究，表明500 kV交直流线路的雷击机理并无本质区别，500 kV线路雷击跳闸以绕击为主的特征是由架空输电线路电气结构决定的。研究结论为500 kV交流线路的防雷经验借鉴至±500 kV直流线路提供了思路。
500 kV교직류선로시당전전력수송적주요통도，뢰격도갑시500 kV선로도갑적주요원인。사용전자잠태연건ATP-EMTP대500 kV교직류선로적뢰격궤리진행방진，통과대500 kV선로반격화요격특성적비교화연구，표명500 kV교직류선로적뢰격궤리병무본질구별，500 kV선로뢰격도갑이요격위주적특정시유가공수전선로전기결구결정적。연구결론위500 kV교류선로적방뢰경험차감지±500 kV직류선로제공료사로。
500 kV AC and DC transmission lines are the primary channel for power transmission , and the tripping fault caused by lightning stroke on 500 kV transmission line is the major reason for line tripping .The electromagnetic transient software ATP-EMTP is used for the mechanism analysis of lightning stroke .By comparing the characteristics of back flashover and shielding failure in 500 kV AC and DC transmission lines , it is shown that there is no essential difference in electrical charac-teristics of AC and DC lines and the electrical structure of overhead transmission line leads to the frequent shielding failures . The result provides the theoretical basis for applying the experiences of protection against lightning in 500 kV AC transmission line to 500 kV DC transmission line .