基于行波电流的接触网故障原因辨识研究

Research on Fault Cause Identification of OCS Based on Traveling Wave Current

针对已安装行波监测终端的铁路牵引网输电线路,对故障跳闸时刻行波特征量进行提取,利用已知故障跳闸巡线原因进行特征量分类,创建基于故障行波的故障原因数据库,将采集到的故障时刻行波与其对比,从而对接触网故障进行原因辨识,当接触网故障重合闸不成功时,可指导接触网运维部门进行重合闸操作,以保障接触网安全运行。

For the transmission line of the railway traction power supply network with traveling wave monitoring terminals installed,the characteristic quantities of the traveling wave at fault trips are acquired,and the known fault trip causes are utilized to classify the characteristic quantities.The fault cause database based on fault traveling wave is created,and the collected fault traveling wave is compared with the database to identify the cause of OCS fault,which may be utilized to guide the OCS operation and maintenance department in the reclosing operation in the case of failure of reclosing due to OCS fault and ensure the safe operation of OCS.