复合功能市域快线车辆供电制式选择研究

Research on the Selection of Vehicle Power Supply System of Multi-function Urban Rail Rapid Transit Line

成都轨道交通13号线是兼具城市交通功能和机场线功能的复合功能市域快线,为确定本线车辆供电制式,对直流、交流以及双流供电从速度目标值的适应性、运营维护、变电所及主变电站、牵引能耗、供电系统、车辆及土建工程等多角度进行分析比较后发现,直流供电不适用于本线,双流制式较单一交流制式在综合供电系统、车辆以及土建投资后增加2.48亿元,且远期列车牵引耗电每年多支出1070.6万元,最终推荐全线采用AC25 kV交流供电制式。复合功能市域快线供电制式选择与线路地下限速段占比关系密切,此外,还应综合考虑各条线路间互联互通的需求,并从线网规划层面做好统筹安排。国内城市轨道交通规划建设具有多层次、多制式协同发展的最新趋势,未来我国会有越来越多的双流制式线路产生,并进一步带动都市圈、城市群的发展,值得持续关注。

Chengdu Rail Transit Line 13 is a multi-function urban rail rapid transit line for both urban traffic and airport line service.In order to determine the vehicle power supply system of this line,the article analyzes and compares DC,AC and dual-current power supply systems from multiple perspectives such as adaptability to speed target,operation and maintenance,substations and main substations,traction energy consumption,power supply systems,vehicles and civil engineering.The results show that the DC power supply is not suitable for this line,the dual-current system increases the investment by 248 million Yuan in terms of power supply system,vehicles and civil engineering,and its long-term train traction power consumption is 10.706 million Yuan more per year.Therefore,it is finally recommended to adopt AC25kV power supply system for the whole line.The selection of the vehicle power supply system of the multi-function urban rail rapid transit line is closely related to the proportion of the underground section with speed limit.In addition,the interconnection requirements between various lines should be comprehensively considered,and overall arrangements should be made from the network planning phase.The domestic urban rail transit planning and construction tend to follow multi-level and multi-system coordinated development.In the future,China will have more and more dual-current system lines to further promote the development of metropolitan areas and urban agglomerations,which deserves continuous attention.