中文摘要：

接触网覆冰严重影响列车运行,造成停运和经济损失,接触网防冰除冰技术是保障铁路安全运营的关键技术之一.本文提出一种基于静止无功发生器（SVG）的电气化铁路接触网工频在线防融冰方案,用于在线高效防冰融冰,以防冰为主,融冰为辅,保障列车正常运行.通过环境温度检测、接触线温度检测、网压检测控制等手段,使设置在接触网末端的SVG自动控制防冰电流.与此同时,还可控制功率因数、接触网末端运行电压,增强牵引网供电能力.仿真证明该方案能够实现防冰、保功率因数和保障电压三大功能,并且具有良好的动态响应能力.

英文摘要：

Accidents of icing on catenary have great impacts on normal operation of trains, thus causing stopping of traffic and economic losses. The anti-icing technology for catenary is one of the key technologies to guaran- tee safe railway operation. In this paper, the on-line anti-icing scheme using the static var generator （SVG） for catenary was put forward, which aimed at highly efficient on-line ice-removing with anti-icing as the main and ice-melting as the secondary. This system was made up of the key power electronic devices and other such as communication, temperature detection and current calculation parts. rents varied with changes of ambient temperatures and wind speeds. Simu scheme is able to accomplish the functions of anti-icing and controlling o end of catenary and to achieve good dynamic responses. The calculated on-line anti-icing cur- lation results prove that the proposed f the power factor and voltage at the