摘要
高压直流(HVDC)杂散电流对天然气主干网干扰影响具有偶发性、不可预知性、难捕捉的特点。文章梳理了上海地区已运行高压直流输电线路接地极与在役主干网、待建化工区复线的相互位置关系,提出采用阴极保护远程监控系统和数值模拟技术来评价管道受干扰程度和影响范围,并提出主干网HVDC杂散电流的防护措施,为待建化工区复线的防护设计提供指导。
The interference influence of high voltage DC （HVDC） stray current on me natural gas plpennc mare network has the characteristics of occasional, unpredictable and difficult to capture. This paper analyzes the mutual position relationship among HVDC transmission line grounding in operation, in-service backbone network and the complex line of chemical area in Shanghai. Using cathodic protection remote monitoring system and numerical simulation technology to evaluate the pipeline interference degree and range of influence are put forward. Then the HVDC stray current protection measures are put out to provide guidance for the protection design of chemical district to be built.
出处
《上海煤气》
2017年第6期3-11,共9页
Shanghai Gas
关键词
天然气主干网
高压直流
防护措施
natural gas pipeline main network, high voltage direct current, protective measure
