Suppression of AC Coupling Effects on HVdc Transmission System Based on MMC

As the number of dc transmission systems increases, more dc lines are constructed in close proximity to existing ac transmission lines. This article deals with ac coupling effect on dc transmission line of modular multilevel converter (MMC) based HVdc system due to neighboring ac lines. Based on a d...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2024-09, Vol.39 (9), p.11571-11582
Main Authors: Lee, Joon-Hee, Jung, Jae-Jung, Sul, Seung-Ki
Format: Article
Language:English
Subjects:
Coupling suppression
Couplings
electromagnetic coupling
harmonic suppression
high voltage DC transmission
HVDC transmission
Legged locomotion
modular multilevel converter
Power harmonic filters
Power transmission lines
Regulators
Voltage control
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As the number of dc transmission systems increases, more dc lines are constructed in close proximity to existing ac transmission lines. This article deals with ac coupling effect on dc transmission line of modular multilevel converter (MMC) based HVdc system due to neighboring ac lines. Based on a decoupled control of MMC, the operation of MMC is investigated with analytic expression. Furthermore, a new dc bus current controller is proposed to mitigate this effect. By applying the proposed controller, the MMC-HVdc system can operate without any interference from the ac coupling effect. The effectiveness of the proposed controller is demonstrated through both full-scale simulation and scaled experimental studies.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2024.3405204