Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters
This study presents a novel switching scheme for three-level neutral point clamped (NPC) inverters. The proposed switching method independently drives the upper- and lower-arm elements of the inverter based on the polarity information of the reference current. The proposed switching scheme does not...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/17/5535 |
| _version_ | 1797521417074376704 |
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| author | Kangsoon Ahn Yongseung Oh Wonseok Oh Kyumin Cho |
| author_facet | Kangsoon Ahn Yongseung Oh Wonseok Oh Kyumin Cho |
| author_sort | Kangsoon Ahn |
| collection | DOAJ |
| description | This study presents a novel switching scheme for three-level neutral point clamped (NPC) inverters. The proposed switching method independently drives the upper- and lower-arm elements of the inverter based on the polarity information of the reference current. The proposed switching scheme does not require the inclusion of dead-time for each switching, except when the current polarity changes. Therefore, unlike the conventional inverter switching method, dead-time compensation is not needed, and the possibility of an arm-short accident is prevented. In this study, a switching procedure is detailed, and the operation mode analysis of the proposed switching scheme is presented. The effectiveness of the proposed switching method is verified experimentally by application to a grid-connected inverter that requires inverter current control. |
| first_indexed | 2024-03-10T08:11:20Z |
| format | Article |
| id | doaj.art-03ddc4fbc3e04aaa9de62f494958af41 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T08:11:20Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-03ddc4fbc3e04aaa9de62f494958af412023-11-22T10:36:09ZengMDPI AGEnergies1996-10732021-09-011417553510.3390/en14175535Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC InvertersKangsoon Ahn0Yongseung Oh1Wonseok Oh2Kyumin Cho3Research and Development Center, Willings. Co., Ltd., Chobu-ro 54 beongil, Yongin-si 17037, KoreaResearch and Development Center, Willings. Co., Ltd., Chobu-ro 54 beongil, Yongin-si 17037, KoreaDepartment of Electrical Engineering, Yuhan University, Gyeongin-ro 590, Bucheon 14780, KoreaDepartment of Information and Communication Engineering, Yuhan University, Gyeongin-ro 590, Bucheon 14780, KoreaThis study presents a novel switching scheme for three-level neutral point clamped (NPC) inverters. The proposed switching method independently drives the upper- and lower-arm elements of the inverter based on the polarity information of the reference current. The proposed switching scheme does not require the inclusion of dead-time for each switching, except when the current polarity changes. Therefore, unlike the conventional inverter switching method, dead-time compensation is not needed, and the possibility of an arm-short accident is prevented. In this study, a switching procedure is detailed, and the operation mode analysis of the proposed switching scheme is presented. The effectiveness of the proposed switching method is verified experimentally by application to a grid-connected inverter that requires inverter current control.https://www.mdpi.com/1996-1073/14/17/5535current controlinverterspulse width modulationphotovoltaic system |
| spellingShingle | Kangsoon Ahn Yongseung Oh Wonseok Oh Kyumin Cho Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters Energies current control inverters pulse width modulation photovoltaic system |
| title | Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters |
| title_full | Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters |
| title_fullStr | Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters |
| title_full_unstemmed | Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters |
| title_short | Independent Upper- and Lower-Arm Switching Scheme Based on Reference Current Polarity for Three-Level NPC Inverters |
| title_sort | independent upper and lower arm switching scheme based on reference current polarity for three level npc inverters |
| topic | current control inverters pulse width modulation photovoltaic system |
| url | https://www.mdpi.com/1996-1073/14/17/5535 |
| work_keys_str_mv | AT kangsoonahn independentupperandlowerarmswitchingschemebasedonreferencecurrentpolarityforthreelevelnpcinverters AT yongseungoh independentupperandlowerarmswitchingschemebasedonreferencecurrentpolarityforthreelevelnpcinverters AT wonseokoh independentupperandlowerarmswitchingschemebasedonreferencecurrentpolarityforthreelevelnpcinverters AT kyumincho independentupperandlowerarmswitchingschemebasedonreferencecurrentpolarityforthreelevelnpcinverters |