Of Ss8 Electric Locomotive Automatic Over-phase System Reliability Design

On the railway of electrization, power supply mode is requested to be the single-phase alternating current. In order to keep balance of electric power system and enhance the using rate of electric power, the locomotive is requested to pass over of neutral section. In order to prevent short current, there are insulators between electric phase. On the high-speed railways, these are many neutral sections, chauffeurs are very exhaustion in manual mode. So the mode of manual passing over of neutral section has not fit the development of railway.These are a few of countries in the world are studying and adopting the automatic passing over of neutral section device now. On the basis of analyzing the circuit of SS-8 electrical locomotive, realizing the overseas modes of automatic passing over of neutral section, the paper proposes and designs this locomotive automatic passing over of neutral section system which on basis of GPS and CONFIDENT build-up orientation. In this system, we designed some new functions , for example, automatic judge running line, automatic judge running direction, automatic adjust the radius of locomotive wheel. And according to the requirement of the locomotive's moving safety, the principle of system reliability design is given, strongly strengthen the system's reliability design.This system is composed of GPS orientation system and CONFIDENT orientation system and main controller system. Firstly, the paper recommends the locomotive's principal circuit and basic method of reliability design. Then, the paper introduces the hardware and software of system. Secondly, we recommend the system's overall structure. At last, we analyze the primary disturbance, we adopted some measures to obtain high stability and to enhance the system's anti-jamming ability. At the end of the thesis, there are some test results of the system.