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http://dx.doi.org/10.5207/JIEIE.2004.18.6.220

A Study on the Application of UPQC in AC Railway System  

Choi, Joon-Ho (전남대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.18, no.6, 2004 , pp. 220-229 More about this Journal
Abstract
The AC railway system is quite differing from the general electric power system because it is single- phase and intermittently heavy loads. Thus, inevitably power quality problems are occurred in the AC railway system, i.e. voltage regulation voltage sags, voltage imbalance, and harmonic distortion. Recently, the power quality of the AC railway system becoming a hot issue because it is affect the control and safety of high-speed traction. In addition it is also affect the power quality of the electric power system. In this paper, single-phase Unified Power Quality Conditioner(UPQS) for the AC railway system is proposed to compensate the voltage sags and harmonic distortion. The configurations and control schemes of the proposed single-phase UPQC are presented. The effectiveness of the proposed single-phase UPQC application is verified by the PSCAD/EMTDC simulation works. It can be shown that the application of UPQC in the AC railway system is very useful to compensate the voltage sags and harmonic distortion from the results of related simulation works.
Keywords
AC railway system; high-speed traction; power quality; AT(auto transferrer); UPQC(unified power quality conditioner); voltage sag; harmonic distortion; PSCAD/EMTDC;
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Times Cited By KSCI : 1  (Citation Analysis)
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