多种敷设方式下10kV交流XLPE电缆改为三极式直流运行的热电耦合仿真分析  

Thermo-electric Coupling Simulation Analysis for 10 kV AC XLPE Cable Changed to Tripole DC Operation under Different Laying Modes

作　　者：王启隆 茅奕晟 于竞哲 戴超 陈向荣 WANG Qilong;MAO Yicheng;YU Jingzhe;DAI Chao;CHEN Xiangrong(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;Hangzhou Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310016,China;Electric Power Research Institute,State Grid Jibei Electric Power Co.,Ltd.,Beijing 100045,China)

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]国网浙江省电力有限公司杭州供电公司,浙江杭州310016 [3]国网冀北电力有限公司电力科学研究院,北京100045

出　　处：《电工技术》2022年第13期163-166,201,共5页Electric Engineering

摘　　要：仿真计算多种敷设方式下的10 kV交流电缆改为三极式直流运行时的温度分布、流场分布和电场分布,结果表明:当电缆改为三极式直流运行后,沟槽敷设时的最大直流电流和最大直流输送功率最大,而排管敷设时的最大直流电流和最大直流输送功率最小;排管敷设时的短路倍数最大,而沟槽敷设时的短路倍数最小。10 kV交流电缆在多种敷设方式下的直流电压等级均可取20 kV。该研究结果可为相关工程提供理论依据。The temperature distribution,flow field distribution and electric field distribution of 10 kV AC cable changed to three pole DC operation under various laying modes are simulated and calculated.The results show that when the cable is changed to three pole DC operation,the maximum DC current and maximum DC transmission power are the largest when laying in trench,while the maximum DC current and maximum DC transmission power are the smallest when laying in row.The short-circuit multiple of pipe laying is the largest,while that of trench laying is the smallest.The DC voltage level of 10 kV AC cable under various laying modes can be 20 kV.The research results can provide a theoretical basis for related projects.

关 键 词：XLPE电缆 三极式直流运行 敷设方式 直流运行参数 

分 类 号：TM247[一般工业技术—材料科学与工程]