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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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) |
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Dc/dc power conversion high voltage direct current (HVDC) transmission modular multilevel converter (MMC) dc grid Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
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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 |
_version_ |
1718420686867791872 |