电气化铁路电缆载流量计算的分析

Analysis on Cable Ampacity Calculation for Electrified Railway

介绍了电缆载流量的解析算法和数值算法,分析了载流量计算中一般性因素(间距、热阻等)和个别因素(铁路电缆相位、短时冲击等)对计算结果的影响,并对电缆短时载流量计算中负荷模型对铁路机车负荷的适用性进行了讨论,最后探索了铁路电缆载流量精确计算模型的建立方法,以期对铁路专用电缆的选型提供有效参考。

The analytical algorithm and numerical algorithm of cable ampacity were presented. The study covered the effects of common factors such as cable distance and thermal resistance, etc. and individual factors such as cable phase and short time impact, etc. on the calculation result; the applicability of load model to electrified railway cable. Finally, the establishing method of accurate calculation model of cable ampacity for electrified railway was discussed, which provide effective reference to the selection of railway cables.