城市轨道交通供电制式与接触网类型的选择研究

Selection on Power Supply System and Contact Line Type of City Orbit Traffic

本文对我国城市轨道交通采用的DC750V和DC1500V供电制式以及第三轨和架空接触网进行了较为全面的比较,提出DC1500V供电优于DC750V的观点;同时认为第三轨与架空接触网各有其优越性。从受电质量和安全角度讲,架空接触网比第三轨优越,而且架空接触网适合于高速铁路;从城市景观和投资角度来讲,第三轨比架空接触网优越。综合电压制式和接触网类型,认为DC1500V第三轨方式更适合城市发展需要。

The paper makes a overall comparison for power supply system of DC750V and DC 1500V and the third rail and overhead contact line which are adopted by City orbit traffic in our country,giving an opinion that DC 1500V is better than DC750V on power supply.It is also held that both the third rail and overhead contact line has both advantages;overhead contact line is superior to the third rail in voltage quality-self-adaptive and safety.At the same time,overhead contact line is more suitable for High-speed Railway;the third rail is superior to overhead contact line in urban landscape and investment.Taken overhead contact llne and contact line type together,considering that the third rail of DC1500V is adapted the demand for the city development better.