A new boost switched capacitor seven‐level grid‐tied inverter
Abstract In this paper, a new switched capacitor‐based multilevel inverter structure is suggested. The proposed topology can generate seven‐level output voltage waveform using ten power electronic switches and two floating capacitors. This structure has the ability to boost the input DC voltage, up...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-02-01
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| Series: | IET Power Electronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/pel2.12031 |
| _version_ | 1829456530815057920 |
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| author | Yang Gao Weichi Zhang Yahya Naderi Zarnaghi Naser Vosoughi Kurdkandi Chenming Zhang |
| author_facet | Yang Gao Weichi Zhang Yahya Naderi Zarnaghi Naser Vosoughi Kurdkandi Chenming Zhang |
| author_sort | Yang Gao |
| collection | DOAJ |
| description | Abstract In this paper, a new switched capacitor‐based multilevel inverter structure is suggested. The proposed topology can generate seven‐level output voltage waveform using ten power electronic switches and two floating capacitors. This structure has the ability to boost the input DC voltage, up to 1.5 times. Although this topology can generate an output waveform with large number of levels, it does not increase the voltage stress on the power electronic switches. There is no need for capacitor voltage balancing in this structure since the capacitors are balanced through charging and discharging modes of operation. In addition, the suggested switched capacitor inverter reduces the number of input dc power supplies and uses a single dc source such as a photovoltaic (PV) panel. Since the proposed inverter is an neutral point clamp based multilevel inverter topology, the leakage current is minimized and as a result the overall efficiency of the proposed system is increased. The operation modes and steady‐state analysis of the proposed structure are explained in detail. In order to validate the feasibility of the proposed topology, some experimental results are presented in the grid connected mode of operation. |
| first_indexed | 2024-04-11T08:49:13Z |
| format | Article |
| id | doaj.art-ff2b254210824acab952a4cd2c0f35d8 |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-04-11T08:49:13Z |
| publishDate | 2021-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-ff2b254210824acab952a4cd2c0f35d82022-12-22T04:33:50ZengWileyIET Power Electronics1755-45351755-45432021-02-0114226827910.1049/pel2.12031A new boost switched capacitor seven‐level grid‐tied inverterYang Gao0Weichi Zhang1Yahya Naderi Zarnaghi2Naser Vosoughi Kurdkandi3Chenming Zhang4School of Mechanical and Automotive Engineering Yangzhou Polytechnic Institute Yangzhou ChinaSchool of Engineering Newcastle University Newcastle upon Tyne NE1 7RU UKDepartment of Electronic and Electrical Engineering University of Strathclyde Glasgow UKFaculty of Electrical and Computer Engineering University of Tabriz Tabriz IranSchool of Engineering Newcastle University Newcastle upon Tyne NE1 7RU UKAbstract In this paper, a new switched capacitor‐based multilevel inverter structure is suggested. The proposed topology can generate seven‐level output voltage waveform using ten power electronic switches and two floating capacitors. This structure has the ability to boost the input DC voltage, up to 1.5 times. Although this topology can generate an output waveform with large number of levels, it does not increase the voltage stress on the power electronic switches. There is no need for capacitor voltage balancing in this structure since the capacitors are balanced through charging and discharging modes of operation. In addition, the suggested switched capacitor inverter reduces the number of input dc power supplies and uses a single dc source such as a photovoltaic (PV) panel. Since the proposed inverter is an neutral point clamp based multilevel inverter topology, the leakage current is minimized and as a result the overall efficiency of the proposed system is increased. The operation modes and steady‐state analysis of the proposed structure are explained in detail. In order to validate the feasibility of the proposed topology, some experimental results are presented in the grid connected mode of operation.https://doi.org/10.1049/pel2.12031Power electronics, supply and supervisory circuitsCapacitorsDC‐AC power convertors (invertors) |
| spellingShingle | Yang Gao Weichi Zhang Yahya Naderi Zarnaghi Naser Vosoughi Kurdkandi Chenming Zhang A new boost switched capacitor seven‐level grid‐tied inverter IET Power Electronics Power electronics, supply and supervisory circuits Capacitors DC‐AC power convertors (invertors) |
| title | A new boost switched capacitor seven‐level grid‐tied inverter |
| title_full | A new boost switched capacitor seven‐level grid‐tied inverter |
| title_fullStr | A new boost switched capacitor seven‐level grid‐tied inverter |
| title_full_unstemmed | A new boost switched capacitor seven‐level grid‐tied inverter |
| title_short | A new boost switched capacitor seven‐level grid‐tied inverter |
| title_sort | new boost switched capacitor seven level grid tied inverter |
| topic | Power electronics, supply and supervisory circuits Capacitors DC‐AC power convertors (invertors) |
| url | https://doi.org/10.1049/pel2.12031 |
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