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

Joon Hee Lee; Jae Jung Jung; Seung Ki Sul

doi:10.1109/TPEL.2024.3405204

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

Joon Hee Lee, Jae Jung Jung, Seung Ki Sul

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	11571-11582
Number of pages	12
Journal	IEEE Transactions on Power Electronics
Volume	39
Issue number	9
DOIs	https://doi.org/10.1109/TPEL.2024.3405204
State	Published - 2024

Keywords

Coupling suppression
electromagnetic coupling
harmonic suppression
high voltage DC transmission
modular multilevel converter

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10.1109/TPEL.2024.3405204

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title = "Suppression of AC Coupling Effects on HVdc Transmission System Based on MMC",

abstract = "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.",

keywords = "Coupling suppression, electromagnetic coupling, harmonic suppression, high voltage DC transmission, modular multilevel converter",

author = "Lee, {Joon Hee} and Jung, {Jae Jung} and Sul, {Seung Ki}",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

year = "2024",

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T1 - Suppression of AC Coupling Effects on HVdc Transmission System Based on MMC

AU - Lee, Joon Hee

AU - Jung, Jae Jung

AU - Sul, Seung Ki

PY - 2024

Y1 - 2024

N2 - 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.

AB - 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.

KW - Coupling suppression

KW - electromagnetic coupling

KW - harmonic suppression

KW - high voltage DC transmission

KW - modular multilevel converter

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DO - 10.1109/TPEL.2024.3405204

M3 - Article

AN - SCOPUS:85194086607

SN - 0885-8993

VL - 39

SP - 11571

EP - 11582

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 9

ER -

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

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