Remote Short-Circuit Current Determination in DC Railway Systems Based on Travelling Wave Theory

TitleRemote Short-Circuit Current Determination in DC Railway Systems Based on Travelling Wave Theory
Publication TypeConference Paper
Year of Publication2009
AuthorsLe, Y, He J
Conference NameProceedings of the 44th International Universities Power Engineering Conference
Date PublishedSeptember
Conference LocationUniversity of Strathclyde
KeywordsPower System Operation and Control Transport applications
Abstract

This paper will outline remote short-circuit current determination in DC railway systems based on travelling wave theory and wavelet transform and analyzes the reason of the di/dt protection failure. The paper also studies the different models to simulate travelling wave behaviors of the system under fault conditions and the DC trains starting-up current. Through these models, new mathematic models will be made for protection research. By comparing the different travelling wave of these two currents , the new DC feeder protection can differential them especially the remote short-circuit.