排管电缆群布置方式的联合优化方法研究

电缆群不同的布置方式会影响其温度场的分布,进而对其载流量产生影响。文中以3×4排管敷设配电电缆群为对象,利用COMSOL和MATLAB建立电缆群温度场联合仿真模型,以等负荷电缆群中最热电缆线芯温度最低为依据优化多回路电缆群的布置。在多回路所有布置方式电缆群温度仿真计算的基础上,最终确定电缆群的最优布置方式以及新增电缆最优布置方式。结果显示电缆群布置方式优化能显著提高电缆群载流能力,降低运行温度,对电缆的长期安全经济运行有重要意义。

Research on Joint Optimization Method for Arrangement of Pipeline Cables

The different arrangement of the cables will affect the distribution of its temperature field, which will affect its current carrying capacity. In this paper, the combined simulation model of temperature field of distribution cables laying in 3*4 pipes is established by COMSOL and MATLAB, and the layout of multi cables applied equal current is optimized under the rule of the temperature of the hottest cable in the group being the lowest. Based on the simulation of the cables temperature under all the layouts of the multi-circuit cables, the optimal layout of the cables and the cable newly added to the group are finally determined. The results show that the optimization of cable group layout can significantly improve its current carrying capacity and reduce its operation temperature, which is of great significance for the long-term safe and economic operation of the cable.