脐带缆中通信电缆间串扰计算方法研究  

Numerical Methodologies for Calculating the Crosstalk of Communication Cables in an Umbilical Cable

作　　者：孙钦 安维峥 俞国军 蔡润泽 杨仕友[3] SUN Qin;AN Weizheng;YU Guojun;CAI Runze;YANG Shiyou(CNOOC Research Institute,Beijing 100028,China;Ningbo Orient Cables&Wires Co.,Ltd.,Ningbo 315000,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]宁波东方电缆股份有限公司,浙江宁波315000 [3]浙江大学电气工程学院,浙江杭州310027

出　　处：《电工技术》2021年第13期48-52,55,共6页Electric Engineering

基　　金：工信部水下油气生产系统工程化示范应用项目“水下油气生产系统示范应用工程总体设计技术研究”(编号MC-201901-S01-01)“水下控制系统工程化技术研究”(编号MC-201901-S01-05)“水下油气生产系统集成测试研究”(编号MC-201901-S01-07)。

摘　　要：脐带缆是由电缆、光缆和药剂运输管线组成的紧凑多管线聚合缆,多应用于深水和超深水的石油和天然气资源开发。随着脐带缆敷设距离的增加和管线集成度的提高,通信电缆间的串扰已成为脐带缆中电缆通信可靠性设计必须考虑的关键问题。为此,提出了脐带缆串扰计算的一种场-路耦合模型和计算方法。为考虑脐带缆中多导体芯线的通信电缆,提出了基于多导体传输线(MTL)理论的多通信电缆串扰的计算模型和计算方法。由于脐带缆结构较复杂,电缆芯线周围的介质非均匀,电缆芯线导体之间不满足宽间隔条件,因此提出了上述模型参数的数值计算方法。最后,仿真计算了典型脐带缆通信电缆间串扰分布规律,并进行了实验验证,证明了该模型和算法的准确性。An umbilical cable is a compact integrated cable of electrical cables,optical cables and chemical transposition tubes.Umbilical cable is widely used in the development of oil and gas resources in deep water and ultra deep water.With the increase of the umbilical cable length and the integration,the crosstalk becomes an essential issue in the reliability design of communication cables,which needs to be considered carefully before installation and fabrication of umbilical cables.In this regard,a coupled circuit and electromagnetic field model and method for numerical calculations of the crosstalk in umbilical cable is proposed.To consider the communication cables of multiconductor cores in an umbilical cable,the multiconductor transmission line(MTL)theory is used to develop an equivalent circuit model.Due to the complex geometry of an umbilical cable,the inhomogeneous medium around the cable cores and the non-wide space between cable cores,a numerical method is introduced to determine the model parameters of the equivalent circuit.Finally,the crosstalk patterns among different communication cables in a typical umbilical cable is calculated by the proposed model and method.Also,an experimental study is conducted to validate the effectiveness of the proposed model and method.

关 键 词：脐带缆 串扰 多导体传输线 终端约束网络 数值计算 

分 类 号：TM246[一般工业技术—材料科学与工程]