计及集群运行温度的新增设电缆位置优化

Location Optimization of Newly Added Cable Considering Cluster Operation Temperature

针对城网改造过程中新增分流电缆的位置选择问题,首先分析了该问题的前提条件,以排列组合的方式为工程设计方案提供矩阵化思路;其次,在分析电缆热阻特性的基础上,综合考虑环境及负荷等因素计算了电缆集群运行温度;最后,建立了新增电缆位置优化模型,改进了传统粒子群算法的数据结构以适应大规模问题求解。算例采用3×4排管敷设方式下新增分流电缆场景,分析验证了所提优化模型的合理性及改进算法的有效性。

Aiming at the location selection of new shunt cables in the process of urban network transformation,this paper first analyzes the preconditions of this problem,and provides a matrix idea for the engineering design scheme in the way of arrangement and combination;Secondly,based on the analysis of cable thermal resistance characteristics,the operating temperature of cable cluster is calculated by comprehensively considering the factors such as environment and load;Finally,the new cable location optimization model is established,and the data structure of the traditional particle swarm optimization algorithm is improved to adapt to the solution of large-scale problems.The calculation example adopts the new shunt cable under the 3×4 pipe laying mode,and the analysis verifies the rationality of the proposed optimization model and the effectiveness of the improved algorithm.