IOPPC光缆拉伸与温升特性的有限元分析  

Finite Element Analysis of Tensile and Temperature Rise Characteristics of IOPPC Cable

作　　者：吕安强[1,2] 王震 LV An-qiang;WANG Zhen(Electronic and Communication Engineering Department,North China Electric Power University,Baoding Hebei 071003,China;Hebei Key Laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding Hebei 071003,China)

机构地区：[1]华北电力大学电子与通信工程系,河北保定071003 [2]华北电力大学河北省电力物联网技术重点实验室,河北保定071003

出　　处：《计算机仿真》2024年第11期132-136,共5页Computer Simulation

基　　金：国家自然科学基金重点资助项目(52177141)。

摘　　要：为获取IOPPC新型复合光缆(Insulated Optical Phase Conductor)在架设时所受机械拉伸和运行后电流温升的特性,进行了力学和电热学有限元仿真分析。首先,建立了光缆的多层绞合几何模型,采用扫略六面体进行了高精度网格划分,并对其施加了拉力载荷;然后,建立了考虑传导、对流和辐射的稳态电热模型,对其施加了额定载流量。有限元计算结果表明,在95%额定拉断力下,光单元最大应变为1.09%,没有超出光纤应变窗口,拉伸过程中没有出现单丝断裂;855A额定载流量下,光缆整体温度分布均匀,约为82.3℃,没有局部温度过热点。上述研究可为输电线路新型光缆的设计、研发和运维提供参考。In order to obtain the characteristics of the mechanical tension and current temperature rise of the new IOPPC composite fiber optic cable(Insulated Optical Phase Conductor)during erection,mechanical and electro-thermal finite element simulations are performed.Firstly,a multilayer stranded geometry model of the fiber optic cable is established,and a high precision mesh is used to divide the cable into sweeping hexahedra,and tensile loads are ap-plied to it;then,a steady-state electro-thermal model considering conduction,convection and radiation is established,and the rated load capacity is applied to it.The finite element calculation results show that the maximum strain of the optical unit is 1.09%under 95%rated tensile force,which does not exceed the fiber strain window,and there is no monofilament fracture during the tensile process;the overall temperature distribution of the fiber optic cable is uniform at 855A rated load flow rate,which is about 82.3℃,and there is no local temperature overheating point.The research in this paper can provide a reference for the design,development and operation and maintenance of new fiber optic ca-bles for power transmission lines.

关 键 词：全绝缘光单元复合光缆 机械拉伸 电流温升:有限元仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]