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The impact of sympathetic magnetization transients on harmonic filters in auto-transformer fed railway traction applications

conference contribution
posted on 06.12.2017, 00:00 by Peter Wolfs
The operation of mixed fleets of modern PWMrectifier and older thyristor locomotives and the tightening ofharmonic emission standards globally will lead to more complexharmonic filter installations in railway applications. This papershows that track switching operations in an auto-transformer fedsystem can generate sympathetic transformer magnetizationcurrents that have very significant magnitudes, high harmoniccontent and last for some seconds. A sympathetic transient canoccur when un-energized auto-transformers are switched intoservice and paralleled with energized transformers at the feederstation or in adjacent track sections. The harmonic loads imposedby these currents need to be considered in the design of theharmonic filter elements and protection.

History

Parent Title

Australasian Universities Power Engineering Conference (AUPEC) 2009.

Start Page

1

End Page

6

Number of Pages

6

Start Date

01/01/2009

ISBN-13

9781424451531

Location

Adelaide, S.A.

Publisher

IEEE

Place of Publication

Piscataway, NJ

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Curtin University of Technology;

Era Eligible

Yes

Name of Conference

Australasian Universities Power Engineering Conference