Coupling between DC lines with a neutral conductor and parallel AC lines

HVDC lines may have use the same right of way as ac lines. This paper discusses the general study methodology that can be used to investigate any coupling between dc and ac transmission lines that share the same right-of-way. The capacitive coupling and the inductive coupling between a dc line with...

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Bibliographic Details
Published in9th IET International Conference on AC and DC Power Transmission (ACDC 2010) p. P07
Main Authors Zhou, J.Z, Burton, R.S, Fletcher, D.E, Davies, J.B
Format Conference Proceeding
LanguageEnglish
Published Stevenage IET 2010
Subjects
d.c. transmission
Power convertors and power supplies to apparatus
Power transmission lines and cables
power transmission lines
conductors (electric)
HVDC power convertors
power transformers
neutral conductor
parallel AC transmission line
power system simulation
capacitive coupling
digital simulation model
digital simulation
HVDC power transmission
converter transformer secondary winding
transformer windings
HVDC line
inductive coupling
DC transmission line
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Summary:HVDC lines may have use the same right of way as ac lines. This paper discusses the general study methodology that can be used to investigate any coupling between dc and ac transmission lines that share the same right-of-way. The capacitive coupling and the inductive coupling between a dc line with a long neutral conductor and an ac transmission system running parallel to it were investigated. A digital simulation model of the coupling phenomenon was developed to model the induced fundamental frequency voltage on the dc line and the neutral conductor. The induced dc current in the converter transformer secondary winding was also modelled. (5 pages)
ISBN:9781849193085
1849193088
DOI:10.1049/cp.2010.0999