Power Quality Issues in Railway Electrification: A Comprehensive Perspective

TLDR

Since the beginning of railway electrification, power quality has been a main problem in railway networks due to their special characteristics, and many improvement methods have been investigated for AC and DC traction systems, yet fewer than 100 research articles provide comprehensive background information. The paper aims to provide a comprehensive perspective on power quality issues in railway electrification, investigating the necessity of power quality and system requirements for appropriate power quality, and to guide researchers and engineers in railway power/distribution networks. The study classifies and compares compensation strategies for power quality, presenting a perspective on railway electrification development and investigating necessary system requirements.

Abstract

Since the beginning of railway electrification, power quality has been a main problem in railway networks because of their special characteristics. Many ways of power quality improvement have been investigated and applied to ac and dc traction systems through railway electrification history. This paper presents a perspective on power quality issues through railway electrification development and investigates the necessity of power quality and system requirements for appropriate power quality. Compensation strategies are classified and compared. This aims to provide a comprehensive perspective of the power quality issue in railway power/distribution networks for researchers and engineers working on railway electrification. Less than 100 research articles are referenced for researchers to obtain good background information.