Open AccessResearch on electrified railway power router based on 81 level conversion technology
Author(s) -
Yifei Shu,
C. Z. Zhang,
Quantao Wang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/354/1/012026
Subject(s) - router , automotive engineering , traction substation , traction (geology) , electrical engineering , voltage , engineering , traction power network , renewable energy , power (physics) , computer science , mechanical engineering , physics , quantum mechanics , transformer
On the premise of realizing the application of renewable energy power generation in traction power supply system, aimed at the problems of power scheduling and operation cost in the traction network of 27.5 kV electrified railway, a kind of electrified railway energy router device based on 81 level conversion technology is proposed. The device adopts 81 level converter to realize the high voltage, high power quality and high power demand of grid-connected converter for electrified railway energy supply system. The energy dispatching mode of voltage-phase angle is adopted to ensure the normal power supply of electric locomotive and the voltage support of traction network. At last, the bidirectional converter of the energy storage unit realizes peak cutting and valley filling of energy and ensures the stability of renewable energy generation. Based on the theoretical study of the topology, technical principle, energy scheduling calculation and control strategy of the new electrified railway power router, the device was simulated and verified, and the effectiveness of the electrified railway power router technical solution was verified.