A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications
This article proposes a single-stage, seven-level (7L), switched-capacitor-based grid-connected inverter architecture with a common ground feature. This topology has the ability to boost the output voltage up to three times the input voltage. The proposed topology can diminish the leakage current in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/8/3428 |
| _version_ | 1797605645645512704 |
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| author | Narayanan Pandurangan Gopinath Krishnasamy Vijayakumar Jagabar Sathik Mohd Ali Kumutha Raghupathi Sivakumar Selvam |
| author_facet | Narayanan Pandurangan Gopinath Krishnasamy Vijayakumar Jagabar Sathik Mohd Ali Kumutha Raghupathi Sivakumar Selvam |
| author_sort | Narayanan Pandurangan Gopinath |
| collection | DOAJ |
| description | This article proposes a single-stage, seven-level (7L), switched-capacitor-based grid-connected inverter architecture with a common ground feature. This topology has the ability to boost the output voltage up to three times the input voltage. The proposed topology can diminish the leakage current in grid-connected photovoltaic (GC-PV) applications, and its capacitor voltages are self-balanced without any additional control strategies. The different operating modes are described in detail with their related mathematical expressions. The design of passive components and a detailed power loss analysis are presented. The merits of the proposed structure are demonstrated using a detailed comparative assessment. The grid-connected operation of the proposed inverter structure is simulated in the MATLAB/Simulink environment, and the results are presented. The laboratory prototype of 935 W is built and analyzed to validate the performance of the proposed structure. |
| first_indexed | 2024-03-11T05:04:01Z |
| format | Article |
| id | doaj.art-63cfeb80427948729905350836eff7fd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T05:04:01Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-63cfeb80427948729905350836eff7fd2023-11-17T19:05:03ZengMDPI AGEnergies1996-10732023-04-01168342810.3390/en16083428A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic ApplicationsNarayanan Pandurangan Gopinath0Krishnasamy Vijayakumar1Jagabar Sathik Mohd Ali2Kumutha Raghupathi3Sivakumar Selvam4Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, IndiaDepartment of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, IndiaRenewable Energy Lab, College of Engineering, Prince Sultan University, Riyadh 11586, Saudi ArabiaDepartment of Physics, S.A. Engineering College, Chennai 600077, IndiaRenewable Energy Lab, College of Engineering, Prince Sultan University, Riyadh 11586, Saudi ArabiaThis article proposes a single-stage, seven-level (7L), switched-capacitor-based grid-connected inverter architecture with a common ground feature. This topology has the ability to boost the output voltage up to three times the input voltage. The proposed topology can diminish the leakage current in grid-connected photovoltaic (GC-PV) applications, and its capacitor voltages are self-balanced without any additional control strategies. The different operating modes are described in detail with their related mathematical expressions. The design of passive components and a detailed power loss analysis are presented. The merits of the proposed structure are demonstrated using a detailed comparative assessment. The grid-connected operation of the proposed inverter structure is simulated in the MATLAB/Simulink environment, and the results are presented. The laboratory prototype of 935 W is built and analyzed to validate the performance of the proposed structure.https://www.mdpi.com/1996-1073/16/8/3428transformerless invertercommon ground structureswitched-capacitorleakage currentphotovoltaic |
| spellingShingle | Narayanan Pandurangan Gopinath Krishnasamy Vijayakumar Jagabar Sathik Mohd Ali Kumutha Raghupathi Sivakumar Selvam A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications Energies transformerless inverter common ground structure switched-capacitor leakage current photovoltaic |
| title | A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications |
| title_full | A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications |
| title_fullStr | A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications |
| title_full_unstemmed | A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications |
| title_short | A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications |
| title_sort | triple boost seven level common ground transformerless inverter topology for grid connected photovoltaic applications |
| topic | transformerless inverter common ground structure switched-capacitor leakage current photovoltaic |
| url | https://www.mdpi.com/1996-1073/16/8/3428 |
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