孙永军,陈科技,陈赛慧,丁一凡,朱仁杰
SUN Yongjun,CHEN Keji,CHEN Saihui,DING Yifan,ZHU Renjie

• 1:国网浙江省电力有限公司经济技术研究院
• 2:国网浙江省电力有限公司嘉兴供电公司

摘要(Abstract)：

采用有限元法对双回路排管敷设方式下的电缆线路进行计算,比较低频与工频传输时电缆的温度场;计算了不同型号电缆在2种典型敷设方式下的提升效率。以国内某变电站送出工程为例,对电缆中各项损耗进行分析,结果表明,低频输电对输送容量的提升作用以及对电缆工况的改善效果明显,电缆截面积越大,降低频率对传输容量的提升效果越明显。该分析结果可为低频工程中的电缆选型提供参考。
First, the finite element method(FEM) is used to calculate the cable lines under double-circuit mode, and the temperature fields of the cable in cases of low-frequency and power-frequency transmission are compared. Then, the efficiency improvement of different types of cables under the two typical laying modes is calculated. The paper analyzes losses in cables in a transmission project of a substation in China. The result indicates that low-frequency transmission can greatly improve the transmission capacity and working condition of cables. The greater the cross-sectional area of the cable, the more obvious the effect of low-frequency on the transmission capacity. These conclusions provide a reference for cable selection in low-frequency transmission project.

关键词(KeyWords)： 低频输电;电力电缆;有限元分析;载流量;温度场
low-frequency AC transmission;power cable;finite element analysis;ampacity;temperature field

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司经济技术研究院专项项目（JY02202124）

作者(Author): 孙永军,陈科技,陈赛慧,丁一凡,朱仁杰
SUN Yongjun,CHEN Keji,CHEN Saihui,DING Yifan,ZHU Renjie

DOI: 10.19585/j.zjdl.202110007

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