含串补电容电气化铁路馈线故障测距算法

含串联补偿电容的电气化铁路牵引电网线路的电抗一距离关系不是单调的，按常规的电抗查表测距法，每个故障点会对应2个或多个定位点．通过对含串补电容馈线故障模型特性的分析，提出了一个新的判别方法．对不同的故障角和过渡电阻的ATP仿真以及MATLAB程序分析结果验证，该方法能够判断出故障与区间串补电容的相对位置．给出了含2个串补电容的电气化铁路馈线故障分段查表测距算法．

Algorithm for Fault Location of Electric Traction Network with Series Compensators

The relationship between impedance and distance of power traction network with series compensators is not monotone in the electric traction network of electrified railways. The conventional method of fault location fails because there will be two or more fault points corresponding to an actual fault. A new method was proposed based on analysis on the fault model of electric traction network with series compensators. ATP (alternative transients program) simulation programmed with MATLAB on different fault phase angles and transient resistances indicates that the method is able to identify the position relative to the series compensators. The algorithm was presented to help users to apply the proposed method by looking up a table containing the criteria.