光纤复合低压电缆载流量计算及修正方法  

Calculation and correction method of optical fiber composite low voltage cable ampacity

作　　者：张强[1] 施惠庆 陈元林[1] 安博文[1] 

机构地区：[1]上海海事大学,上海201306 [2]江苏海上龙源风力发电有限公司,江苏南通226408

出　　处：《光通信技术》2017年第8期36-39,共4页Optical Communication Technology

摘　　要：提出一种基于有限元和模拟退火法的光纤复合低压电缆载流量计算及参数修正方法。首先,通过有限元建模计算电缆内部各层材料的导热灵敏度,分析得出对计算载流量影响较大的材料参数。然后,施加不同载荷,利用布里渊光时域分析仪实测得到电缆内光纤温度,将其与有限元建模所得光纤温度作对比,使用模拟退火算法对材料参数进行修正。通过对比发现,用该方法修正参数得到的光纤温度值更加接近于实际。A calculation method of accuracy ampacity of OPLC is proposed which is based on Simulated Annealing（SA） and FEM. Firstly, the method gets main material parameters by comparing the thermal sensitivity of materials. Then, with appling different loads, the optical fiber temperature inside the cable is mesured by BOTDA and is compared with the temperature measured by FEM modeling method. Simulated annealing algorithm is used to correct the material parameters. The temperature of optical fiber obtained by the modified parameters is more close to the actual situation than before.

关 键 词：有限元 模拟退火法 载流量 光纤复合低压电缆 

分 类 号：TN915.62[电子电信—通信与信息系统]