Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses
Abstract This paper proposes a novel interleaved ultra‐large gain zero‐voltage switching (ZVS) DC–DC converter for renewable energy systems. By using coupled inductor (CI) and built‐in transformer (BIT), a high‐voltage gain is achieved. The secondary windings of the CIs are connected in series with...
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| Format: | Article |
| Language: | English |
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Wiley
2023-08-01
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| Series: | IET Power Electronics |
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| Online Access: | https://doi.org/10.1049/pel2.12512 |
| _version_ | 1797742377657434112 |
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| author | Tohid Nouri |
| author_facet | Tohid Nouri |
| author_sort | Tohid Nouri |
| collection | DOAJ |
| description | Abstract This paper proposes a novel interleaved ultra‐large gain zero‐voltage switching (ZVS) DC–DC converter for renewable energy systems. By using coupled inductor (CI) and built‐in transformer (BIT), a high‐voltage gain is achieved. The secondary windings of the CIs are connected in series with the primary winding of the BIT and the secondary winding of the BIT is inserted in voltage multiplier cell (VMC). In such a case, the voltage gain is proportional to the multiplication of the turn's ratios of the CI and BIT. To increase the devices’ utilization, the active clamp circuit not only provide ZVS performance for the metal‐oxide‐semiconductor field‐effect transistor (MOSFETs) and recycles the leakage energy, but also participates in voltage gain enhancement. The voltage stress across the switches is considerably decreased and the low duty cycle reduces the conduction and switching losses. Low input current ripple, equal current sharing without a dedicated controller and common ground are the other merits of the proposed converter. Steady‐state analyses are presented and through a fair comparison, the superiority of the proposed converter over the state‐of‐the‐art is guaranteed. Finally, a 500‐W laboratory prototype with 20‐ to 400‐V voltage conversion is built to demonstrate the effectiveness of the proposed converter. |
| first_indexed | 2024-03-12T14:40:00Z |
| format | Article |
| id | doaj.art-516943fd8abe4b53a7affbfd212c8d38 |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-03-12T14:40:00Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-516943fd8abe4b53a7affbfd212c8d382023-08-16T10:56:23ZengWileyIET Power Electronics1755-45351755-45432023-08-0116111913192810.1049/pel2.12512Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stressesTohid Nouri0Department of Electrical Engineering‐Sari Branch Islamic Azad University Sari IranAbstract This paper proposes a novel interleaved ultra‐large gain zero‐voltage switching (ZVS) DC–DC converter for renewable energy systems. By using coupled inductor (CI) and built‐in transformer (BIT), a high‐voltage gain is achieved. The secondary windings of the CIs are connected in series with the primary winding of the BIT and the secondary winding of the BIT is inserted in voltage multiplier cell (VMC). In such a case, the voltage gain is proportional to the multiplication of the turn's ratios of the CI and BIT. To increase the devices’ utilization, the active clamp circuit not only provide ZVS performance for the metal‐oxide‐semiconductor field‐effect transistor (MOSFETs) and recycles the leakage energy, but also participates in voltage gain enhancement. The voltage stress across the switches is considerably decreased and the low duty cycle reduces the conduction and switching losses. Low input current ripple, equal current sharing without a dedicated controller and common ground are the other merits of the proposed converter. Steady‐state analyses are presented and through a fair comparison, the superiority of the proposed converter over the state‐of‐the‐art is guaranteed. Finally, a 500‐W laboratory prototype with 20‐ to 400‐V voltage conversion is built to demonstrate the effectiveness of the proposed converter.https://doi.org/10.1049/pel2.12512DC–DC power convertorspower electronics |
| spellingShingle | Tohid Nouri Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses IET Power Electronics DC–DC power convertors power electronics |
| title | Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses |
| title_full | Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses |
| title_fullStr | Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses |
| title_full_unstemmed | Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses |
| title_short | Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses |
| title_sort | performance improvement of a zero voltage switching interleaved high step up dc dc converter with low voltage stresses |
| topic | DC–DC power convertors power electronics |
| url | https://doi.org/10.1049/pel2.12512 |
| work_keys_str_mv | AT tohidnouri performanceimprovementofazerovoltageswitchinginterleavedhighstepupdcdcconverterwithlowvoltagestresses |