电缆线路的电缆群载流量优化数值计算模型研究  

Research on Optimal Numerical Caculation Model of Cable Groups Ampacity in Cable Route

作　　者：郑雁翎[1] 

机构地区：[1]宝鸡文理学院电子电气工程系,宝鸡721016

出　　处：《高电压技术》2015年第11期3760-3765,共6页High Voltage Engineering

基　　金：陕西省自然科学基础研究计划(2013JQ7034);陕西省教育厅科研计划项目(14JK1042);宝鸡文理学院院级重点研究项目(ZK12054)~~

摘　　要：电力电缆载流量的计算对电缆线路的设计、敷设以及运行都具有重意义。因而以排管敷设电缆群为研究对象,借助优化设计算法理论,建立了排管敷设电缆群载流量优化数值计算模型;把电缆群的总载流量达到最大作为目标,把电缆群中所有电缆线芯温度不超过规定温度限值作为约束条件,对电缆群中所有电缆的载流量进行优化计算。通过ANSYS仿真优化计算的结果可知,与迭代法相比,利用优化算法计算电缆群载流量可以将电缆群的总载流能力提高约6%。本算法的结果显示,通过设计电缆群电流分布的最优化通流方案,能最大限度地提高电缆群的总载流能力。The calculation of the power cable ampacity is of great significance to the circuit design, installation, and op- eration of power cable. The laying cable in pipes is investigated, and an optimal numerical calculation model of ampacity for cable groups is established by means of the theory of optimizing. On the basis that the total sum of current of all the cables achieves maximum and that constraint condition for all the cable wire core temperature does not exceed its limit value, the capacity of each one of all the cables is optimized by using optimization design model of finite element soil- ware ANSYS. It is found from results of simulation of optimization by ANSYS that, compared with that from the iterative method, the total ampacity of cable groups is significantly improved to almost 6% for the optimization algorithm. The re- suits of the algorithm show that the total ampacity of cable group can be improved by designing the optimized scheme for current distribution of cable group.

关 键 词：电力电缆 排管敷设 载流量 优化运行 有限元法 电缆线路 

分 类 号：TM751[电气工程—电力系统及自动化]