Research On Fault Location Device For Traction Line Of Electrification Railway

Locating the fault accurately and timely can not only contribute to restore the fault traction line and relieve the intension of surfaceman, but also be propitious to improve the reliability and safety of the railway. But for the limitation of technology condition, there is not a fault locator with high accuracy and high reliability. Based on the comprehensive analysis of the application status and the existed problem of traction line fault location, the thesis present a new fault locator principle based on distributed parameter. The dissertation combine the specialty of supply system of electrization railway and present a new harmonized-control method for fault location that overcome the influence the length of traction line, the method make use of harmonic component. Then the paper bring forward the special way of data processing that adopt the difference Fourier's algorithm to process data in the normal condition in order to meet with the demand for time and use least square algorithm to process fault data in order to meet with the demand for precision. At last we judge the operation mode of duplicate-traction line and set up the fault location model based on information of switch status and appended fault information. Moreover we develop a new fault locator for traction line based on distributed parameter. The microprocessor of the device selects TMS320VC33 that is made by Texas Instrument and the compiled language uses standard ANSI C.　　　　　　　　　　　　　LiHongGang(High Voltage & Insulation Technology )Directed by prof. Quan Yu Sheng...