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How pantograph electric arcs affect energy efficiency in DC railway vehicles

How pantograph electric arcs affect energy efficiency in DC railway vehicles

Authors :
Andrea Mariscotti
Daniele Gallo
Antonio Delle Femine
Domenico Giordano
D. Signorino
2020 IEEE Vehicle Power and Propulsion Conference, VPPC 2020 - Proceedings
Mariscotti, A.
Giordano, D.
Delle Femine, A.
Gallo, D.
Signorino, D.
Publication Year :
2020
Publisher :
Institute of Electrical and Electronics Engineers Inc., 2020.

Abstract

In DC electrified railways pantograph electric arcs represent not only a disturbance, but the step change of the pantograph voltage affects power losses directly and indirectly. The available line voltage is reduced if the train is in traction condition, the arc itself is characterized by ohmic power losses, and the triggered oscillating transient responses are characterized by a net power loss. In addition, if arc occurs during braking the arc voltage suddenly increases the pantograph voltage and may interfere with the dissipative braking chopper, reducing the recovered energy. This work presents the model and analysis these phenomena with the support of experimental results related to results for arcs measured on a 3 kV dc line in traction and braking conditions. Keywords—Electric arc, Energy consumption, Power Quality, Power supply transient, Power system transients, Rail transportation, Rolling Stock

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....b1eae51810ae3976849e650296717e94