Abstract
Aiming at the inevitable pantograph-catenary off-line arc when electric multiple units (EMUs) run, the CRH3 EMUs, which operate at China Chongqing–Lichuan line, are selected as the research subject. Vehicle body voltage caused by the pantograph-catenary off-line arc is analyzed. First, the structure of the vehicle body and CRH3 EMUs grounding system are studied. Second, based on PSCAD/EMTDC software, electric parameters of traction network and CRH3 EMUs are ascertained, then a coupling model of vehicle-grid system is established, and an extended pantograph-catenary arc model is utilized to simulate pantograph-catenary off-line when vehicles run. Through the pantograph-catenary off-line model, vehicle body overvoltage distribution is analyzed. Finally, aiming at the CRH3 EMUs grounding system, corresponding methods are proposed to suppress vehicle body overvoltage.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (51767013), the National Key Research and Development Program of China (2017YFB1201003), the Science and technology research and development plan of China Railway Corporation(2017J012-A), the Natural Science Foundation of Gansu Province Education Department (2017A-020), and the Science and Technology Program of Gansu Province (17JR5RA083).
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Wang, Y., Gao, F., Mu, X., Li, Q., Chen, X., Liang, S. (2018). Analysis of EMUs Vehicle Body Voltage Caused by Pantograph-Catenary Off-Line Arc. In: Jia, L., Qin, Y., Suo, J., Feng, J., Diao, L., An, M. (eds) Proceedings of the 3rd International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2017. EITRT 2017. Lecture Notes in Electrical Engineering, vol 483. Springer, Singapore. https://doi.org/10.1007/978-981-10-7989-4_17
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DOI: https://doi.org/10.1007/978-981-10-7989-4_17
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