基于CDEGS的高速铁路非载流吊弦区段接触悬挂和电连接电气负荷计算

Load Calculation of Non-current Carrying Dropper and Electrical Connection of High-speed Railway OCS Suspension Based on CDEGS

我国部分地区的高速铁路工程中采用了非载流吊弦,与载流吊弦相比,在接触悬挂、电连接等电气负荷方面存在差异。为解决非载流吊弦线路接触悬挂、电连接等设备电气负荷特性问题,利用CDEGS软件,建立仿真计算模型,并通过模拟试验对仿真模型进行验证。在此基础上,建立考虑接触网导线空间几何分布的计算模型,对非载流吊弦线路的接触悬挂、电连接等电气负荷进行计算研究,结果表明:取流点附近的电连接流过的电流最大,且最大电流不受电连接数量的影响,在中心锚结装置两侧设电连接可有效抑制电流流过中心锚结装置,并据此提出电连接设置方案。

High- speed railway projects in part of China country use non-current carrying dropper.Compared with the current carrying dropper,the non-current carrying dropper is different in electrical load related to contact suspension, electrical connection and etc. In order to solve the problems concerning electrical load performance of the non-current carrying dropper and electrical connection,thispaper uses CDEGS software to establish simulation calculation model and verifies the model with simulation tests. On this basis,the calculationmodel of the spatial distribution of the contact wire is established to calculate and analyze the electrical load of the OCS suspension with non-contact carrier dropper and electrical connection. The results show that the current passing through electrical connection near the current collecting point is the maximum without limiting the number of electrical connection and the electrical connections set on both sides of midpoint anchor can effectively curb the current from flowing across the midpoint anchor,with which the electrical connection arrangement is proposed.