DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters
Cascaded H-Bridge (CHB) converters have been widely employed in various applications, providing the advantages of modularity and multilevel voltage output. However, technically the CHB converters require isolated DC-link buses, which need to be regulated individually. In this context, a control sche...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9492074/ |
| _version_ | 1818356020149223424 |
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| author | Youngjong Ko Anatolii Tcai Marco Liserre |
| author_facet | Youngjong Ko Anatolii Tcai Marco Liserre |
| author_sort | Youngjong Ko |
| collection | DOAJ |
| description | Cascaded H-Bridge (CHB) converters have been widely employed in various applications, providing the advantages of modularity and multilevel voltage output. However, technically the CHB converters require isolated DC-link buses, which need to be regulated individually. In this context, a control scheme for the CHB converters features the voltage balancing algorithm. The voltage balancing control is typically performed by PI controller, where its control capability is limited by linear modulation region. In this work, the modulation based voltage balancing algorithm is proposed, which extends the balancing control capability and improves the dynamic performance. The proposed method is theoretically analyzed and validated through the simulation and experimental results. |
| first_indexed | 2024-12-13T19:50:34Z |
| format | Article |
| id | doaj.art-72e2f1e2255a4434a54be77af7bb99b7 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T19:50:34Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-72e2f1e2255a4434a54be77af7bb99b72022-12-21T23:33:27ZengIEEEIEEE Access2169-35362021-01-01910352410353210.1109/ACCESS.2021.30988969492074DC-Link Voltage Balancing Modulation for Cascaded H-Bridge ConvertersYoungjong Ko0https://orcid.org/0000-0002-6101-994XAnatolii Tcai1https://orcid.org/0000-0001-8933-7870Marco Liserre2https://orcid.org/0000-0002-0818-2684Department of Electrical Engineering and Industry 4.0~Convergence Bionics Engineering, Pukyong National University, Busan, South KoreaChair of Power Electronics, Christian-Albrechts-University of Kiel, Kiel, GermanyChair of Power Electronics, Christian-Albrechts-University of Kiel, Kiel, GermanyCascaded H-Bridge (CHB) converters have been widely employed in various applications, providing the advantages of modularity and multilevel voltage output. However, technically the CHB converters require isolated DC-link buses, which need to be regulated individually. In this context, a control scheme for the CHB converters features the voltage balancing algorithm. The voltage balancing control is typically performed by PI controller, where its control capability is limited by linear modulation region. In this work, the modulation based voltage balancing algorithm is proposed, which extends the balancing control capability and improves the dynamic performance. The proposed method is theoretically analyzed and validated through the simulation and experimental results.https://ieeexplore.ieee.org/document/9492074/Multilevel converterCascaded-H bridge converterDC-link voltage balancingmodulation |
| spellingShingle | Youngjong Ko Anatolii Tcai Marco Liserre DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters IEEE Access Multilevel converter Cascaded-H bridge converter DC-link voltage balancing modulation |
| title | DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters |
| title_full | DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters |
| title_fullStr | DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters |
| title_full_unstemmed | DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters |
| title_short | DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters |
| title_sort | dc link voltage balancing modulation for cascaded h bridge converters |
| topic | Multilevel converter Cascaded-H bridge converter DC-link voltage balancing modulation |
| url | https://ieeexplore.ieee.org/document/9492074/ |
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