The Research On Pantograph-catenary Arc EMC Experiment System And Radiation Noise

With the rapid development of the electrified railway, the electromagnetic noise which is generated by the catenary-pantograph arc is increasingly prominent in the high-speed rail system. The jamming signal poses a threat to the reliability of power supply system and affects the locomotive control signals and the correct transmission of the communication signal along the railway, and it does harm to health of the residents along the railway.For bow net offline arc electromagnetic disturbance problem research is a frontier topic in the study of bow net relations.For further research on the formation mechanism of the bow net arc and suppression method, designed a set of bow net arc electromagnetic noise experiment system.The system consists of radio anechoic chamber, the bow net arc generator, the bow net arc detection system.The experiment system can realize the offline control, produce arc offline, at the same time realize the arc voltage and arc current, temperature, contact pressure, the bow net arc video signals, the electromagnetic field of the bow net arc running parameters, such as automatic acquisition, storage, and the signal analysis function.Use of the bow net arc simulation experiment system, by setting scheme, select the antenna, etc., in view of the bow net arc radiation noise has carried on the experimental research, and analyzed the characteristics of the income data.Provide the basis for later emc analysis, at the same time proved that the system meet the functional requirements.