Design and implementation of isolated multilevel inverter with lower number of circuit devices
Abstract Galvanic isolation is an integral part for the grid connected solar PV system. With the advancement of multilevel inverters for the grid‐connected application, the multilevel inverters having isolation are not sufficiently discussed in the literature. Here, a 15‐level isolated multilevel in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-12-01
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| Series: | IET Power Electronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/pel2.12579 |
| _version_ | 1797403371882151936 |
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| author | Ahmed Abbas Marif Daula Siddique Shirazul Islam Atif Iqbal |
| author_facet | Ahmed Abbas Marif Daula Siddique Shirazul Islam Atif Iqbal |
| author_sort | Ahmed Abbas |
| collection | DOAJ |
| description | Abstract Galvanic isolation is an integral part for the grid connected solar PV system. With the advancement of multilevel inverters for the grid‐connected application, the multilevel inverters having isolation are not sufficiently discussed in the literature. Here, a 15‐level isolated multilevel inverter topology requiring only 13 switches is proposed. The proposed single‐phase isolated converter requires reduced switches to generate 15‐level ac output voltage with voltage gain of 7. Comparatively, the switches connected in the proposed converter undergo less voltage stress as compared to the MLIs reported in the literature. A comparison of the proposed converter structure to the state‐of‐the art MLIs described in the literature is included. The experimental results captured on a low‐power laboratory prototype are used to validate the performance of the proposed converter. The claimed efficiency of the converter calculated using simulation results is found to be 97.1%. However, the efficiency calculated using experimental results is 95.2% at 700 W. |
| first_indexed | 2024-03-09T02:38:01Z |
| format | Article |
| id | doaj.art-003076b086124186bfde2ef0cddf1819 |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-03-09T02:38:01Z |
| publishDate | 2023-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-003076b086124186bfde2ef0cddf18192023-12-06T07:53:00ZengWileyIET Power Electronics1755-45351755-45432023-12-0116162792280010.1049/pel2.12579Design and implementation of isolated multilevel inverter with lower number of circuit devicesAhmed Abbas0Marif Daula Siddique1Shirazul Islam2Atif Iqbal3Department of Electrical Engineering Qatar University Doha QatarDepartment of Electrical Engineering Qatar University Doha QatarDepartment of Electrical Engineering Qatar University Doha QatarDepartment of Electrical Engineering Qatar University Doha QatarAbstract Galvanic isolation is an integral part for the grid connected solar PV system. With the advancement of multilevel inverters for the grid‐connected application, the multilevel inverters having isolation are not sufficiently discussed in the literature. Here, a 15‐level isolated multilevel inverter topology requiring only 13 switches is proposed. The proposed single‐phase isolated converter requires reduced switches to generate 15‐level ac output voltage with voltage gain of 7. Comparatively, the switches connected in the proposed converter undergo less voltage stress as compared to the MLIs reported in the literature. A comparison of the proposed converter structure to the state‐of‐the art MLIs described in the literature is included. The experimental results captured on a low‐power laboratory prototype are used to validate the performance of the proposed converter. The claimed efficiency of the converter calculated using simulation results is found to be 97.1%. However, the efficiency calculated using experimental results is 95.2% at 700 W.https://doi.org/10.1049/pel2.12579boost capabilityisolated convertermultilevel inverterself‐voltage balancingswitched capacitor |
| spellingShingle | Ahmed Abbas Marif Daula Siddique Shirazul Islam Atif Iqbal Design and implementation of isolated multilevel inverter with lower number of circuit devices IET Power Electronics boost capability isolated converter multilevel inverter self‐voltage balancing switched capacitor |
| title | Design and implementation of isolated multilevel inverter with lower number of circuit devices |
| title_full | Design and implementation of isolated multilevel inverter with lower number of circuit devices |
| title_fullStr | Design and implementation of isolated multilevel inverter with lower number of circuit devices |
| title_full_unstemmed | Design and implementation of isolated multilevel inverter with lower number of circuit devices |
| title_short | Design and implementation of isolated multilevel inverter with lower number of circuit devices |
| title_sort | design and implementation of isolated multilevel inverter with lower number of circuit devices |
| topic | boost capability isolated converter multilevel inverter self‐voltage balancing switched capacitor |
| url | https://doi.org/10.1049/pel2.12579 |
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