接触网融冰电气控制系统策略的研究

Study of Ice-Melting Electrical Control System for Overhead Contact System

接触网是铁路电气化工程的主构架,是沿铁路线上空架设的向电力机车供电的特殊形式的输电线路,接触网一旦结冰将对电力机车的运行带来极大的影响。针对城轨接触网的结构特点,对接触网融冰技术进行了研究。介绍了国内外输电线路融冰、防冰的技术与方法。借鉴架空电力线融冰方法,采用最大融冰电流的方法对城轨接触网进行快速融冰,将冰害对城轨运营的影响降到最低。

The overhead contact system is the main framework of the railway electrification project,and it is a special form of the power transmission lines that is used to transmit power to electric locomotive.If the power transmission lines are ice cov- ered,it will put a tremendous impact on the electric locomotive.In this paper,based on the structural characteristics of the urban rail overhead contact system,the technology of overhead contact system melting ice is studied.The situation of do- mestic and international melting ice,anti-icing technology of transmission lines is introduced.Reference the method of over- head power line ice-melting,the utmost ice melting current is chosen to complete urban rail overhead contact system rapid ice meltina.ln this way,it will minimize the imDact of the ice damage on the urban rail.