Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application

High-voltage dc/dc converter is the key equipment to interconnect high-voltage dc (HVdc) systems with different voltage levels and to build dc grid. This paper presents a novel three-port modular dc/dc converter (TP-MDCC) to interconnect three HVdc systems, and it offers the following merits: 1) hig...

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Autores principales: Hongcheng You, Xu Cai
Formato: article
Lenguaje:EN
Publicado: IEEE 2018
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Acceso en línea:https://doaj.org/article/a8c5bec7d64c4911a82c1e6067311038
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spelling oai:doaj.org-article:a8c5bec7d64c4911a82c1e60673110382021-11-19T00:02:08ZStepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application2169-353610.1109/ACCESS.2018.2869730https://doaj.org/article/a8c5bec7d64c4911a82c1e60673110382018-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/8464039/https://doaj.org/toc/2169-3536High-voltage dc/dc converter is the key equipment to interconnect high-voltage dc (HVdc) systems with different voltage levels and to build dc grid. This paper presents a novel three-port modular dc/dc converter (TP-MDCC) to interconnect three HVdc systems, and it offers the following merits: 1) high efficiency for the elimination of multiple dc/ac conversion stages and transformers; 2) modular design and small submodule (SM) capacitance requirement; 3) low <inline-formula> <tex-math notation="LaTeX">$\text{d}v/\text{d}t$ </tex-math></inline-formula> stress; and 4) the sorting algorithm of the SM capacitor voltages needs only to be executed twice in a period, which poses small computation burden. In this paper, the operation principle and the control strategy of the TP-MDCC are analyzed, and the simulation and experimental results verify the effectiveness of the converter.Hongcheng YouXu CaiIEEEarticleDc/dc power conversionhigh voltage direct current (HVDC) transmissionmodular multilevel converter (MMC)dc gridElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 6, Pp 53822-53832 (2018)
institution DOAJ
collection DOAJ
language EN
topic Dc/dc power conversion
high voltage direct current (HVDC) transmission
modular multilevel converter (MMC)
dc grid
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Dc/dc power conversion
high voltage direct current (HVDC) transmission
modular multilevel converter (MMC)
dc grid
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Hongcheng You
Xu Cai
Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
description High-voltage dc/dc converter is the key equipment to interconnect high-voltage dc (HVdc) systems with different voltage levels and to build dc grid. This paper presents a novel three-port modular dc/dc converter (TP-MDCC) to interconnect three HVdc systems, and it offers the following merits: 1) high efficiency for the elimination of multiple dc/ac conversion stages and transformers; 2) modular design and small submodule (SM) capacitance requirement; 3) low <inline-formula> <tex-math notation="LaTeX">$\text{d}v/\text{d}t$ </tex-math></inline-formula> stress; and 4) the sorting algorithm of the SM capacitor voltages needs only to be executed twice in a period, which poses small computation burden. In this paper, the operation principle and the control strategy of the TP-MDCC are analyzed, and the simulation and experimental results verify the effectiveness of the converter.
format article
author Hongcheng You
Xu Cai
author_facet Hongcheng You
Xu Cai
author_sort Hongcheng You
title Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
title_short Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
title_full Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
title_fullStr Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
title_full_unstemmed Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application
title_sort stepped 2-level operation of three-port modular dc/dc converter applied in hvdc application
publisher IEEE
publishDate 2018
url https://doaj.org/article/a8c5bec7d64c4911a82c1e6067311038
work_keys_str_mv AT hongchengyou stepped2leveloperationofthreeportmodulardcdcconverterappliedinhvdcapplication
AT xucai stepped2leveloperationofthreeportmodulardcdcconverterappliedinhvdcapplication
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