深圳地铁5号线二期工程供电系统  

Power Supply System of Shenzhen Metro Line 5 Phase Ⅱ

作　　者：陈宇星 Chen Yuxing(Shenzhen Municipal Design&Research Institute Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市市政设计研究院有限公司,深圳518000

出　　处：《智能建筑电气技术》2023年第5期61-64,共4页Electrical Technology of Intelligent Buildings

摘　　要：深圳地铁5号线二期工程供电系统,针对牵引变电所直流开关柜和整流器柜的安装,采用了自研的绝缘地坪方案,相对于传统的树脂绝缘板,提高了绝缘性能的同时又保证了地面平顺度和美观性,给运营维护带来极大的便利。针对接触网,在深圳地区首次采用接触网可视化接地系统,与传统的轨行区接触网停电作业采用人工接挂地线的方式,有效缩短停电和接地时间,提高运营检修效率及安全性。同时提出弓网关系优化方案,有效改善刚性接触网运营工况和受电弓磨耗。并且通过节能技术减少牵引网和高次谐波引起的损耗等取得了一定成效。在杂散电流监测方面,通过简化系统结构,采用系统集成方案替代了原杂散电流监测系统中心级功能,减少了工程投资。For the power supply system of Phase II Project of Shenzhen Metro Line 5,the self-developed insulation floor scheme is adopted for the insulation scheme for the installation of DC switch cabinet and rectifier cabinet in the traction Electrical substation.Compared with the traditional resin insulation board,it improves the insulation performance while ensuring the smoothness and beauty of the ground,bringing great convenience to the operation and maintenance.For the catenary,the catenary visual Earthing system is adopted for the first time in Shenzhen,and the way of manually hanging ground wires is adopted for the power outage operation of the catenary in the traditional rail transit area,which effectively shortens the power outage and grounding time,and improves the efficiency and safety of operation and maintenance.At the same time,an optimization plan for the pantograph catenary relationship is proposed to effectively improve the operating conditions of the rigid contact network and pantograph wear.And certain results have been achieved through energy-saving technology to reduce losses caused by traction networks and high-order harmonics.In terms of stray current monitoring,by simplifying the system structure and adopting a system integration solution,the central level function of the original stray current monitoring system has been replaced,reducing engineering investment.

关 键 词：供电系统 杂散电流 绝缘地坪 弓网关系 节能 

分 类 号：U231.8[交通运输工程—道路与铁道工程]