中国电业(技术版)
中國電業(技術版)
중국전업(기술판)
China Electric Power (Technology Edition)
2015年
10期
16-22
,共7页
董根生%蒋剑%相生荣%孙海峰
董根生%蔣劍%相生榮%孫海峰
동근생%장검%상생영%손해봉
750kV交流输电线路%埋地油气管道%工频电流%短路电流%雷电流%电磁干扰
750kV交流輸電線路%埋地油氣管道%工頻電流%短路電流%雷電流%電磁榦擾
750kV교류수전선로%매지유기관도%공빈전류%단로전류%뇌전류%전자간우
750kV AC transmission line%buried oil gas pipeline%power frequency current%short-circuit current%lightning current%electromagnetic interfere
由于电力行业和石油天然气行业对传输路径的择优原则极为相近,使得电力输电线路对输油输气管道的电磁影响问题日益突出。为探究电力线路对多条埋地金属管道的电磁影响,本文分析了交流输电线路对油气管道产生电磁影响的机理,在基于矩量法的电磁仿真软件CDEGS中搭建了750kV交流线路对多条埋地油气管道的电磁影响的仿真模型,针对桥湾750kV交流输电线路分别分析了输电线路正常工作时的工频电流、发生单极短路故障时的故障电流以及雷击750kV交流输电线路杆塔时的雷电流对近期的西气东输和西油东输油气管道的电磁影响。最后求得了桥湾750kV交流输电工程对埋地油气管道的干扰电压影响值,并提出了杆塔与埋地管道的最短安全距离及相关保护措施。
由于電力行業和石油天然氣行業對傳輸路徑的擇優原則極為相近,使得電力輸電線路對輸油輸氣管道的電磁影響問題日益突齣。為探究電力線路對多條埋地金屬管道的電磁影響,本文分析瞭交流輸電線路對油氣管道產生電磁影響的機理,在基于矩量法的電磁倣真軟件CDEGS中搭建瞭750kV交流線路對多條埋地油氣管道的電磁影響的倣真模型,針對橋灣750kV交流輸電線路分彆分析瞭輸電線路正常工作時的工頻電流、髮生單極短路故障時的故障電流以及雷擊750kV交流輸電線路桿塔時的雷電流對近期的西氣東輸和西油東輸油氣管道的電磁影響。最後求得瞭橋灣750kV交流輸電工程對埋地油氣管道的榦擾電壓影響值,併提齣瞭桿塔與埋地管道的最短安全距離及相關保護措施。
유우전역행업화석유천연기행업대전수로경적택우원칙겁위상근,사득전력수전선로대수유수기관도적전자영향문제일익돌출。위탐구전력선로대다조매지금속관도적전자영향,본문분석료교류수전선로대유기관도산생전자영향적궤리,재기우구량법적전자방진연건CDEGS중탑건료750kV교류선로대다조매지유기관도적전자영향적방진모형,침대교만750kV교류수전선로분별분석료수전선로정상공작시적공빈전류、발생단겁단로고장시적고장전류이급뢰격750kV교류수전선로간탑시적뇌전류대근기적서기동수화서유동수유기관도적전자영향。최후구득료교만750kV교류수전공정대매지유기관도적간우전압영향치,병제출료간탑여매지관도적최단안전거리급상관보호조시。
Because the electric power industry and oil and gas industry have a close principle to the preferential transmission route, the electromagnetic impact of power transmission line is increasingly prominent. To explore the electromagnetic effect of electric power line on the multi buried metal pipeline, the mechanism of the electromagnetic effect of the AC transmission line to the oil gas pipeline is analyzed and the simulation model of the electromagnetic effect of 750kV AC line to the multi buried oil gas pipeline is built in the electromagnetic simulation software CDEGS, which is based on the method of moments. Aim at Qiaowan 750kV AC transmission line, the paper analyzed the electromagnetic effect of the power frequency current, single-phase short-circuit fault current and the lighting current on the oil gas pipeline. At last, the inlfuence of the interference voltage of the 750kV AC transmission engineering to the buried oil gas pipeline is obtained and the shortest safe distance from the tower and underground pipelines and related protection measures are put forward.