Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system

Abstract Equipping a DC‐type superconducting fault current limiter (SFCL) in a modular multilevel converter‐based multi‐terminal DC (MMC‐M2TDC) system has the potential to reorganize the protection control arrangements during the DC‐side short‐circuit fault. This paper introduces the converter non‐b...

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Main Authors: Ji Yirun, Peiqian Guo, Liu Qin
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.13216
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author Ji Yirun
Peiqian Guo
Liu Qin
author_facet Ji Yirun
Peiqian Guo
Liu Qin
author_sort Ji Yirun
collection DOAJ
description Abstract Equipping a DC‐type superconducting fault current limiter (SFCL) in a modular multilevel converter‐based multi‐terminal DC (MMC‐M2TDC) system has the potential to reorganize the protection control arrangements during the DC‐side short‐circuit fault. This paper introduces the converter non‐blocking operation and system fast restoration control of the SFCL MMC‐M2TDC with the DC‐side bipolar fault condition, as well as their feasibility verifications. Considering the characteristics of overdamping oscillation of DC voltage and the additional impedance effect of the new resistor‐inductor SFCL (R‐L SFCL), the unfaulty converter non‐blocking protection enables faulty segment isolation and DC fault ride through without unwanted active power interruption. The restoration control for smooth reconnection and fast recovery of the off‐grid converter station ensures the DC voltage rebuilding process and reduces the required period. To validate the above arrangements, the simulation is conducted upon the PSCAD/EMTDC corresponding to the three‐terminal R‐L SFCL MMC‐M2TDC system. Finally, the research routes for novel superconducting coil design, SFCL scheme design, and multi‐device cooperative strategy are discussed, all of which contribute to promoting the high‐quality development of SFCL in MMC‐M2TDC scenarios.
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spelling doaj-art-e330b1a5c31b482394d56586eadbd5b32025-08-20T02:39:24ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952024-12-0118233817382810.1049/gtd2.13216Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC systemJi Yirun0Peiqian Guo1Liu Qin2Electric Power Research Institute State Grid Jibei Electric Power Co., Ltd. Beijing ChinaDepartment of Electronic, Electrical and System Engineering University of Birmingham Birmingham UKBeijing Electric Power Economic Technology Institute State Grid Beijing Electric Power Company Beijing ChinaAbstract Equipping a DC‐type superconducting fault current limiter (SFCL) in a modular multilevel converter‐based multi‐terminal DC (MMC‐M2TDC) system has the potential to reorganize the protection control arrangements during the DC‐side short‐circuit fault. This paper introduces the converter non‐blocking operation and system fast restoration control of the SFCL MMC‐M2TDC with the DC‐side bipolar fault condition, as well as their feasibility verifications. Considering the characteristics of overdamping oscillation of DC voltage and the additional impedance effect of the new resistor‐inductor SFCL (R‐L SFCL), the unfaulty converter non‐blocking protection enables faulty segment isolation and DC fault ride through without unwanted active power interruption. The restoration control for smooth reconnection and fast recovery of the off‐grid converter station ensures the DC voltage rebuilding process and reduces the required period. To validate the above arrangements, the simulation is conducted upon the PSCAD/EMTDC corresponding to the three‐terminal R‐L SFCL MMC‐M2TDC system. Finally, the research routes for novel superconducting coil design, SFCL scheme design, and multi‐device cooperative strategy are discussed, all of which contribute to promoting the high‐quality development of SFCL in MMC‐M2TDC scenarios.https://doi.org/10.1049/gtd2.13216converter reconnectionDC‐side bipolar short‐circuit faultfast restorationfaulty converter non‐blocking controlmodular multilevel converter‐based multi‐terminal DCNanao project
spellingShingle Ji Yirun
Peiqian Guo
Liu Qin
Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
IET Generation, Transmission & Distribution
converter reconnection
DC‐side bipolar short‐circuit fault
fast restoration
faulty converter non‐blocking control
modular multilevel converter‐based multi‐terminal DC
Nanao project
title Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
title_full Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
title_fullStr Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
title_full_unstemmed Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
title_short Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system
title_sort converter non blocking dc fault ride through and system fast restoration arrangements in r l sfcl equipped mmc m2tdc system
topic converter reconnection
DC‐side bipolar short‐circuit fault
fast restoration
faulty converter non‐blocking control
modular multilevel converter‐based multi‐terminal DC
Nanao project
url https://doi.org/10.1049/gtd2.13216
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AT peiqianguo converternonblockingdcfaultridethroughandsystemfastrestorationarrangementsinrlsfclequippedmmcm2tdcsystem
AT liuqin converternonblockingdcfaultridethroughandsystemfastrestorationarrangementsinrlsfclequippedmmcm2tdcsystem