高原电气化铁路20kV全电缆电力贯通线方案设计  

Design of 20 kV All Cable Through Line Scheme for Plateau Electrified Railway

作　　者：孙晓佳 陈嗣霖 龚康华 李再华 付浩纯 李朝兵 曾毅 赵宏程 SUN Xiaojia;CHEN Silin;GONG Kanghua;LI Zaihua;FU Haochun;LI Chaobing;ZENG Yi;ZHAO Hongcheng(State Grid Tibet Power Co,Ltd,Electric Power Research Institute,Lhasa 850000,China;China Electric Power Research Institute,Bejing 100192,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]国网西藏电力有限公司电力科学研究院,西藏拉萨850000 [2]中国电力科学研究院有限公司,北京100192 [3]西南交通大学电气工程学院,四川成都611756

出　　处：《电工技术》2023年第3期132-134,138,共4页Electric Engineering

摘　　要：受电网架构和环境条件限制的高原电气化铁路,通常具有电源点少、供电能力薄弱及牵引负荷冲击性强等特点。以川藏铁路为例,其新建雅安-林芝段30 km以上超长隧道有15座,占线路总长25%。为了确保隧道内扬尘排放满足通风安全标准,需在隧道内敷设全电缆电力贯通线,为大规模通风系统提供高品质电源。然而,传统的10 kV电力贯通线难以满足长大隧道内的供电需求。为保障沿线隧道负荷的供电质量,对川藏铁路电力贯通线进行了20 kV电力供电设计,具有重要的理论意义和应用价值。The plateau ectrified railway,which is limited by the grid structure and environment,is usually characterized by few power sources,weak power supply capacity and large proportion of tunnels.Take Sichuan Tibet Railway as an example,there are 15 new ulrar long tunnels over 30 km between Ya'an and Linzhi accounting for 25%of the total length of the line.In order to ensure the dust discharge in the tunnel to meet the ventilation safety standards,it is necessary to lay the whole cable power through-line in the tunnel to provide high-quality power for large-scale ventilation system.However,the traditional 10 kV power through-line is difficult to meet the power supply demand in the long tunnel.Therefore,in order to guarantee the load power supply quality of tunnels along the line,20 kV power supply design of Sichuan-Tibet Railway power through-line is carried out in this paper,which has important theoretical significance and application value.

关 键 词：高原电气化铁路 全电缆电力贯通线 20 kV电压等级 方案设计 

分 类 号：TM922[电气工程—电力电子与电力传动]