Harmonic analysis of EMUs in railway systems

Wai Chau Edward Lo, T. M. Lai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)

Abstract

The increasing use of power electronic drives and devices in Electric Multiple Units (EMU) of railway systems has increased the levels of harmonics in the electricity feeding systems of railways. While the harmonic current for a single EMU can be easily measured or simulated, it is not easy to estimate the possible worst case for a number of trains of EMU operating simultaneously on a line according to a time schedule, but with statistical variation. This paper presents a systematic approach to estimate harmonic distortion, which incorporates a novel directional track shift method to deal with the train schedule. The railway simulation is performed in the ATP version of the Electromagnetic Transient Program (EMTP) and the results of the harmonic simulation are compared with measurements made on a railway system. Summaries of the parameters affecting the harmonic performance of the traction system and estimates of the most predominant harmonics in network are also presented.
Original languageEnglish
Title of host publication2004 1st International Conference on Power Electronics Systems and Applications Proceedings
Pages142-148
Number of pages7
Publication statusPublished - 1 Dec 2004
Event2004 1st International Conference on Power Electronics Systems and Applications - Hong Kong, Hong Kong
Duration: 9 Nov 200411 Nov 2004

Conference

Conference2004 1st International Conference on Power Electronics Systems and Applications
CountryHong Kong
CityHong Kong
Period9/11/0411/11/04

Keywords

  • Harmonic
  • Railway
  • Train Schedule

ASJC Scopus subject areas

  • Engineering(all)

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