典型文献
Improved fault location method for AT traction power network based on EMU load test
文献摘要：
The autotransformer (AT) neutral current ratio method is widely used for fault location in the AT traction power network. With the development of high-speed elec-trified railways, a large number of data show that the rela-tion between the AT neutral current ratio and the distance from the beginning of the fault AT section to the fault point (Q–L relation) is mostly nonlinear. Therefore, the linear Q–L relation in the traditional fault location method always leads to large errors. To solve this problem, a large num-ber of load-related current data that can be used to describe the Q–L relation are obtained through the load test of the electric multiple unit (EMU). Thus, an improved fault loca-tion method based on the back propagation (BP) neural network is proposed in this paper. On this basis, a com-parison between the improved method and the traditional method shows that the maximum absolute error and the aver-age absolute error of the improved method are 0.651 km and 0.334 km lower than those of the traditional method, respectively, which demonstrates that the improved method can effectively eliminate the influence of nonlinear factors and greatly improve the accuracy of fault location for the AT traction power network. Finally, combined with a short-circuit test, the accuracy of the improved method is verified.
文献关键词：
中图分类号：
作者姓名：
Guosong Lin;Xuguo Fu;Wei Quan;Bin Hong
作者机构：
School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China
文献出处：
引用格式：
[1]Guosong Lin;Xuguo Fu;Wei Quan;Bin Hong-.Improved fault location method for AT traction power network based on EMU load test)[J].铁道工程科学（英文）,2022(04):532-540
A类：
autotransformer,trified
B类：
Improved,fault,location,method,AT,traction,power,network,EMU,load,test,neutral,current,ratio,widely,used,With,development,high,speed,railways,large,number,data,that,between,distance,from,beginning,section,point,relation,mostly,nonlinear,Therefore,traditional,always,leads,errors,To,solve,this,problem,related,can,describe,are,obtained,through,electric,multiple,unit,Thus,improved,back,propagation,neural,proposed,paper,On,basis,parison,shows,maximum,absolute,aver,age,lower,than,those,respectively,which,demonstrates,effectively,eliminate,influence,factors,greatly,accuracy,Finally,combined,short,circuit,verified
AB值：
0.425404
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