Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System
In this paper, a novel step-up converter is proposed, which has the particular features of single semiconductor switch, ultra-high conversion ratio, galvanic isolation, and easy control. Therefore, the proposed converter is suitable for the applications of fuel-cell power system. Coupled inductors a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/10/11/1311 |
| _version_ | 1811270599337574400 |
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| author | Chih-Lung Shen Heng Liou |
| author_facet | Chih-Lung Shen Heng Liou |
| author_sort | Chih-Lung Shen |
| collection | DOAJ |
| description | In this paper, a novel step-up converter is proposed, which has the particular features of single semiconductor switch, ultra-high conversion ratio, galvanic isolation, and easy control. Therefore, the proposed converter is suitable for the applications of fuel-cell power system. Coupled inductors and switched capacitors are incorporated in the converter to obtain an ultra-high voltage ratio that is much higher than that of a conventional high step-up converter. Even if the turns ratio of coupled inductor and duty ratio are only to be 1 and 0.5, respectively, the converter can readily achieve a voltage gain of up to 18. Owing to this outstanding performance, it can also be applied to any other low voltage source for voltage boosting. In the power stage, only one active switch is used to handle the converter operation. In addition, the leakage energy of the two couple inductors can be totally recycled without any snubber, which simplifies the control mechanism and improves the conversion efficiency. Magnetic material dominates the conversion performance of the converter. Different types of iron cores are discussed for the possibility to serve as a coupled inductor. A 200 W prototype with 400 V output voltage is built to validate the proposed converter. In measurement, it indicates that the highest efficiency can be up to 94%. |
| first_indexed | 2024-04-12T22:04:55Z |
| format | Article |
| id | doaj.art-36692ca5f966452db844919820e804dd |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T22:04:55Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-36692ca5f966452db844919820e804dd2022-12-22T03:14:58ZengMDPI AGMaterials1996-19442017-11-011011131110.3390/ma10111311ma10111311Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power SystemChih-Lung Shen0Heng Liou1Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 82445, TaiwanDepartment of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 82445, TaiwanIn this paper, a novel step-up converter is proposed, which has the particular features of single semiconductor switch, ultra-high conversion ratio, galvanic isolation, and easy control. Therefore, the proposed converter is suitable for the applications of fuel-cell power system. Coupled inductors and switched capacitors are incorporated in the converter to obtain an ultra-high voltage ratio that is much higher than that of a conventional high step-up converter. Even if the turns ratio of coupled inductor and duty ratio are only to be 1 and 0.5, respectively, the converter can readily achieve a voltage gain of up to 18. Owing to this outstanding performance, it can also be applied to any other low voltage source for voltage boosting. In the power stage, only one active switch is used to handle the converter operation. In addition, the leakage energy of the two couple inductors can be totally recycled without any snubber, which simplifies the control mechanism and improves the conversion efficiency. Magnetic material dominates the conversion performance of the converter. Different types of iron cores are discussed for the possibility to serve as a coupled inductor. A 200 W prototype with 400 V output voltage is built to validate the proposed converter. In measurement, it indicates that the highest efficiency can be up to 94%.https://www.mdpi.com/1996-1944/10/11/1311fuel cellsmagnetic materialsingle semiconductor switchand ultra-high step-up converter |
| spellingShingle | Chih-Lung Shen Heng Liou Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System Materials fuel cells magnetic material single semiconductor switch and ultra-high step-up converter |
| title | Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System |
| title_full | Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System |
| title_fullStr | Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System |
| title_full_unstemmed | Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System |
| title_short | Magnetic Material Assessment of a Novel Ultra-High Step-Up Converter with Single Semiconductor Switch and Galvanic Isolation for Fuel-Cell Power System |
| title_sort | magnetic material assessment of a novel ultra high step up converter with single semiconductor switch and galvanic isolation for fuel cell power system |
| topic | fuel cells magnetic material single semiconductor switch and ultra-high step-up converter |
| url | https://www.mdpi.com/1996-1944/10/11/1311 |
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