The Electric Multiple Units (EMU) relies on the catenary network to operate. In the emergency condition when the catenary network is unable to supply power, the EMU can run by itself through the on-board battery. The EMU will generate a large amount of braking energy during the emergency electric braking process of the long downhill slope. This energy will cause the DC bus voltage to rise, which will affect the operation of the train traction system and auxiliary systems. To solve this problem, this paper puts forward the ‘battery primary and braking resistor secondary’ hybrid braking energy absorption scheme. The braking energy is absorbed by the combination of the battery and braking resistor, and their work is controlled by the hierarchical control strategy, so as to maintain the stability of the DC bus of the train. Finally, the feasibility of the scheme is verified by Simulink.
Electric Braking Energy Absorption Schemes for Emergency Self-Running EMU Under Long Ramp
Lect. Notes Electrical Eng.
International Conference on Electrical and Information Technologies for Rail Transportation ; 2021 October 21, 2021 - October 23, 2021
Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021 ; Kapitel : 22 ; 188-195
2022-02-22
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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