A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve
Abstract Modular Multilevel Converters (MMCs) are promising candidates for high‐voltage high‐power applications. The main challenge of the MMCs is the zero‐frequency operation. To achieve a successful DC–DC conversion process with balanced capacitors’ voltages with limited voltage ripple, this paper...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-09-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12974 |
| _version_ | 1827812228354539520 |
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| author | Ahmed Elserougi Ibrahim Abdelsalam Ahmed Massoud |
| author_facet | Ahmed Elserougi Ibrahim Abdelsalam Ahmed Massoud |
| author_sort | Ahmed Elserougi |
| collection | DOAJ |
| description | Abstract Modular Multilevel Converters (MMCs) are promising candidates for high‐voltage high‐power applications. The main challenge of the MMCs is the zero‐frequency operation. To achieve a successful DC–DC conversion process with balanced capacitors’ voltages with limited voltage ripple, this paper suggests the employment of the conventional two‐leg half‐bridge submodule‐based MMC structure in conjunction with a single bidirectional high‐voltage (HV) valve across the low‐voltage side. In the suggested structure, the HV valve is controlled on and off to ensure energy equalization for the MMC arms. In addition, soft‐switching for the HV valve is proposed to reduce the switching losses. Detailed illustration and design of the proposed concept are presented. Simulation and experimentation results are elucidated to show the effectiveness of the proposed DC–DC hybrid MMC. The results showed efficient performance of the suggested converter. |
| first_indexed | 2024-03-11T23:15:58Z |
| format | Article |
| id | doaj.art-cd6c7d171889444f9f1d5e14ec8a5528 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-03-11T23:15:58Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-cd6c7d171889444f9f1d5e14ec8a55282023-09-21T04:21:25ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-09-0117184146416010.1049/gtd2.12974A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valveAhmed Elserougi0Ibrahim Abdelsalam1Ahmed Massoud2Department of Electrical Engineering Alexandria University Alexandria EgyptElectrical Engineering Department Arab Academy for Science Technology and Maritime Transport Cairo EgyptDepartment of Electrical Engineering Qatar University Doha QatarAbstract Modular Multilevel Converters (MMCs) are promising candidates for high‐voltage high‐power applications. The main challenge of the MMCs is the zero‐frequency operation. To achieve a successful DC–DC conversion process with balanced capacitors’ voltages with limited voltage ripple, this paper suggests the employment of the conventional two‐leg half‐bridge submodule‐based MMC structure in conjunction with a single bidirectional high‐voltage (HV) valve across the low‐voltage side. In the suggested structure, the HV valve is controlled on and off to ensure energy equalization for the MMC arms. In addition, soft‐switching for the HV valve is proposed to reduce the switching losses. Detailed illustration and design of the proposed concept are presented. Simulation and experimentation results are elucidated to show the effectiveness of the proposed DC–DC hybrid MMC. The results showed efficient performance of the suggested converter.https://doi.org/10.1049/gtd2.12974DC–DC power convertorsHVDC and power electronics |
| spellingShingle | Ahmed Elserougi Ibrahim Abdelsalam Ahmed Massoud A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve IET Generation, Transmission & Distribution DC–DC power convertors HVDC and power electronics |
| title | A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve |
| title_full | A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve |
| title_fullStr | A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve |
| title_full_unstemmed | A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve |
| title_short | A hybrid half‐bridge submodule‐based DC–DC modular multilevel converter with a single bidirectional high‐voltage valve |
| title_sort | hybrid half bridge submodule based dc dc modular multilevel converter with a single bidirectional high voltage valve |
| topic | DC–DC power convertors HVDC and power electronics |
| url | https://doi.org/10.1049/gtd2.12974 |
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