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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8464039/ |
| _version_ | 1818344444657664000 |
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| author | Hongcheng You Xu Cai |
| author_facet | Hongcheng You Xu Cai |
| author_sort | Hongcheng You |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-13T16:46:35Z |
| format | Article |
| id | doaj.art-a8c5bec7d64c4911a82c1e6067311038 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T16:46:35Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a8c5bec7d64c4911a82c1e60673110382022-12-21T23:38:09ZengIEEEIEEE Access2169-35362018-01-016538225383210.1109/ACCESS.2018.28697308464039Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC ApplicationHongcheng You0https://orcid.org/0000-0001-9052-9423Xu Cai1Wind Power Research Center, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, ChinaWind Power Research Center, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, ChinaHigh-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.https://ieeexplore.ieee.org/document/8464039/Dc/dc power conversionhigh voltage direct current (HVDC) transmissionmodular multilevel converter (MMC)dc grid |
| spellingShingle | Hongcheng You Xu Cai Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application IEEE Access Dc/dc power conversion high voltage direct current (HVDC) transmission modular multilevel converter (MMC) dc grid |
| title | 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_short | 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 |
| topic | Dc/dc power conversion high voltage direct current (HVDC) transmission modular multilevel converter (MMC) dc grid |
| url | https://ieeexplore.ieee.org/document/8464039/ |
| work_keys_str_mv | AT hongchengyou stepped2leveloperationofthreeportmodulardcdcconverterappliedinhvdcapplication AT xucai stepped2leveloperationofthreeportmodulardcdcconverterappliedinhvdcapplication |