Digital Detection, Control, and Distribution System for Co-Phase Traction Power Supply Application

Unbalance and reactive power currents of electric railway will result in poor power quality of three-phase industrial power grid. A co-phase traction power supply system is introduced in this paper to solve these problems by adopting single-phase ac-dc-ac converter. The converter is connected betwee...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2013-05, Vol.60 (5), p.1831-1839
Main Authors: Shu, Zeliang, Xie, Shaofeng, Lu, Ke, Zhao, Yuanzhe, Nan, Xiaoqiang, Qiu, Daqiang, Zhou, Fulin, Gao, Sibin, Li, Qunzhan
Format: Article
Language:English
Subjects:
Active power compensator (APC)
co-phase power supply system
electric railway
Harmonic analysis
Phase locked loops
Power quality
Power system harmonics
Reactive power
single phase ac-dc-ac converter
traction power supply
unbalance current compensation
Windings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Unbalance and reactive power currents of electric railway will result in poor power quality of three-phase industrial power grid. A co-phase traction power supply system is introduced in this paper to solve these problems by adopting single-phase ac-dc-ac converter. The converter is connected between two secondary windings of traction transformer with abilities of active power transmission and reactive power compensation. Because of the power conversion, the co-phase supply system can utilize single-phase feeding connection scheme instead of traditional two-phase feeding scheme. An actual 10 MVA/27.5 kV co-phase system with impedance-matching balance transformer is designed, developed, and tested. Its real-time detection, control, and distribution algorithms with field programmable gate array-based implementation are introduced. Some test running results validate the performance of the digital controller and demonstrate the feasibility of the proposed co-phase power supply system.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2012.2190959