Open AccessModelling and performance analysis of advanced combined co‐phase traction power supply system in electrified railway
Author(s) -
Chen Minwu,
Li Qunzhan,
Roberts Clive,
Hillmansen Stuart,
Tricoli Pietro,
Zhao Ning,
Krastev Ivan
Publication year - 2016
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2015.0513
Subject(s) - traction (geology) , single phase electric power , control theory (sociology) , ac power , automotive engineering , traction substation , transformer , train , power quality , compensation (psychology) , electric power system , traction power network , engineering , electric locomotive , power (physics) , power flow , power factor , computer science , voltage , electrical engineering , mechanical engineering , control (management) , physics , quantum mechanics , psychology , cartography , artificial intelligence , geography , psychoanalysis
An advanced combined co‐phase traction power supply system is proposed by combining a single‐phase traction transformer and an active power flow controller (PFC) in an electrified railway. In the new system, the power quality problems caused by single‐phase traction load are solved in the grid side and continuous power can be provided to electric trains without neutral sections in the traction side. The mathematic model of the new system is built by power transformation analysis. The compensation currents of the PFC are calculated based on the power balance principle. According to the power quality standard in China, the optimised partial compensation algorithm is presented to replace the existing full compensation one. Moreover, the capacity of the PFC adopting the proposed algorithm is much less than those in the previous studies with the same outcome. The validity of the compensation algorithm and the control method are demonstrated by the simulation results and the effectiveness of the proposed system is verified by the case studies.