Open AccessOverview of urban rail transit energy feedback traction power supply system
Author(s) -
Jiao Zhang,
Yujie Li,
Yiwei Wang,
Bin Li
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/4/042051
Subject(s) - catenary , traction substation , power factor , rectifier (neural networks) , inverter , electrical engineering , automotive engineering , traction (geology) , traction power network , switched mode power supply , power (physics) , engineering , ac power , voltage , computer science , physics , mechanical engineering , stochastic neural network , structural engineering , quantum mechanics , machine learning , recurrent neural network , artificial neural network , transformer
The power feedback traction power supply device is composed of rectifier unit and four - quadrant converter device. The four-quadrant converter device can work either in the rectifier state which can provide energy to the dc catenary or in the inverter state which can feed excess regenerative braking energy back to the ac power grid. At the same time, it can make reactive power compensation for ac medium voltage network and improve the power factor of the system. This paper mainly introduces the research technology of urban rail transit energy - fed traction power supply system.