摘要
在分析接触网雨淞覆冰形成机理的基础上,结合电气化铁路的供电原理,参考架空导线的覆冰预测模型得出接触网雨淞覆冰自然增长模型,并根据电热融冰热平衡方程,建立接触网牵引电流等效融冰厚度模型。在该基础上,得出接触网雨淞覆冰厚度预测模型。该模型考虑了接触网覆冰的气象因素,也考虑了牵引电流大小极其持续时间的影响,能够较准确地预测接触网雨淞覆冰的厚度。
Based on the analysis of contact wire icing mechanism and the power supply principle of electrical railway, the nature glaze icing accretion model of electrical railway contact wire is given by using icing prediction model of overhead line for reference. And the equivalent ice-melting thickness of traction current is built on the basis of heat balance equation of ice melting. Then the glaze icing thickness prediction model is obtained. The effects of meteorological factors, traction current and its duration are considered in the glaze icing prediction model, which can accurately predict glaze icing thickness of electrical contact wire.
出处
《电气化铁道》
2014年第1期21-24,共4页
Electric Railway
基金
江西省自然科学基金资助项目(20132BAB216028)
江西省教育厅青年科学基金资助项目(GJJ11116)
华东交通大学校立科研基金资助项目(08DQ06)
关键词
雨淞覆冰
接触网
牵引电流
气象因素
glaze icing
contact wire
traction current
meteorological factors
