邯长铁路牵引供电系统越区供电能力仿真分析

牵引变电所通常配置一主一备两台变压器,传统的检修方式为单组退出进行维修,安全性低,存在检修死角,且维修耗时较长。本文以电气化铁路是否具备越区供电能力为分析计算对象,搭建了直供加回流牵引供电方式下的MATLAB仿真模型,结合既有线路具体参数及实际馈线取流,分析牵引所越区后最大电压损失是否符合要求。

The traction substation usually allocates two transformers of one main and one standby.The traditional maintenance mode is that the single set of transformer will exit for maintenance,it is low in terms of safety,and it has dead angle and time consuming for maintenance.Based on the analysis and calculation of whether the electrified railway has the capability of over-zone power supply,the paper establishes the MATLAB simulation model under traction power supply mode with direct supply plus return current,combined with the specific parameters of the existing line and the actual current collection of feeders,analyzes whether the maximum voltage loss of the traction substation after the over-zone power supply is meeting the requirements.