An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation
Problems related to power quality, which in the last years were responsible only for small losses in low-voltage distribution systems, are now causing damage to power apparatuses and financial losses also in medium-voltage systems. The necessity of a better quality of power supply encourages the dev...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-06-01
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| Series: | Electronics |
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| Online Access: | http://www.mdpi.com/2079-9292/4/2/311 |
| _version_ | 1798041624052236288 |
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| author | Weder Tótola Nunes Lucas Frizera Encarnação Mauricio Aredes |
| author_facet | Weder Tótola Nunes Lucas Frizera Encarnação Mauricio Aredes |
| author_sort | Weder Tótola Nunes |
| collection | DOAJ |
| description | Problems related to power quality, which in the last years were responsible only for small losses in low-voltage distribution systems, are now causing damage to power apparatuses and financial losses also in medium-voltage systems. The necessity of a better quality of power supply encourages the development of new specific custom power devices directly connected in medium-voltage distribution systems. It is well know that the multilevel converters are capable of being installed directly in the medium voltage, and presents several advantages when compared with conventional two-level converters. Some topologies, like the asymmetric cascaded multilevel converter, presents difficulties in regulating the voltages of all isolated dc-link capacitors. In this context, this article presents an asymmetric nineteen-level D–STATCOM (Distribution Static Synchronous Compensator) with a reactive power and dc-link regulation control loops for generic cascaded multilevel converters in order to improve the power quality in medium-voltage distribution systems. The performance of the proposed control method for a multilevel D–STATCOM is presented and evaluated in a downscaled prototype. |
| first_indexed | 2024-04-11T22:24:04Z |
| format | Article |
| id | doaj.art-d259d9fe408043379e38c796c182900d |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-04-11T22:24:04Z |
| publishDate | 2015-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-d259d9fe408043379e38c796c182900d2022-12-22T03:59:56ZengMDPI AGElectronics2079-92922015-06-014231132810.3390/electronics4020311electronics4020311An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid ModulationWeder Tótola Nunes0Lucas Frizera Encarnação1Mauricio Aredes2Department of Electrical Engineering, Federal Institute of Espírito Santo, Av. Vitória 1729, Jucutuquara, Campus Vitória, 29040-780 Vitória/ES, BrazilDepartment of Electrical Engineering , Federal University of Espírito Santo, Av. Fernando Ferrari, Campus Universitário, 29060-900 Vitória/ES, BrazilDepartment of Electrical Engineering, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos 149-Cidade Universitária, 21941-914, Rio de Janeiro/RJ, BrazilProblems related to power quality, which in the last years were responsible only for small losses in low-voltage distribution systems, are now causing damage to power apparatuses and financial losses also in medium-voltage systems. The necessity of a better quality of power supply encourages the development of new specific custom power devices directly connected in medium-voltage distribution systems. It is well know that the multilevel converters are capable of being installed directly in the medium voltage, and presents several advantages when compared with conventional two-level converters. Some topologies, like the asymmetric cascaded multilevel converter, presents difficulties in regulating the voltages of all isolated dc-link capacitors. In this context, this article presents an asymmetric nineteen-level D–STATCOM (Distribution Static Synchronous Compensator) with a reactive power and dc-link regulation control loops for generic cascaded multilevel converters in order to improve the power quality in medium-voltage distribution systems. The performance of the proposed control method for a multilevel D–STATCOM is presented and evaluated in a downscaled prototype.http://www.mdpi.com/2079-9292/4/2/311multilevel asymmetric cascadedD-STATCOMhybrid modulation |
| spellingShingle | Weder Tótola Nunes Lucas Frizera Encarnação Mauricio Aredes An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation Electronics multilevel asymmetric cascaded D-STATCOM hybrid modulation |
| title | An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation |
| title_full | An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation |
| title_fullStr | An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation |
| title_full_unstemmed | An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation |
| title_short | An Improved Asymmetric Cascaded Multilevel D–STATCOM with Enhanced Hybrid Modulation |
| title_sort | improved asymmetric cascaded multilevel d statcom with enhanced hybrid modulation |
| topic | multilevel asymmetric cascaded D-STATCOM hybrid modulation |
| url | http://www.mdpi.com/2079-9292/4/2/311 |
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