A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications
In this paper, a structure-reconfigurable resonant DC-DC (direct current − direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and wide voltage gain range simultaneously. Th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/15/2905 |
| _version_ | 1817988890287407104 |
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| author | Xianxu Huo Ke Xu Ruixin Liu Xi Chen Zhanchun Li Haiyun Yan |
| author_facet | Xianxu Huo Ke Xu Ruixin Liu Xi Chen Zhanchun Li Haiyun Yan |
| author_sort | Xianxu Huo |
| collection | DOAJ |
| description | In this paper, a structure-reconfigurable resonant DC-DC (direct current − direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and wide voltage gain range simultaneously. The characteristics of the LLC (inductor-inductor-capacitor) resonant converter are firstly analyzed. Based on this, through introducing additional resonant elements and adopting the topology morphing method, the proposed converter can be formed. Moreover, a novel parameter selection method is discussed to satisfy both working states. Then, a detailed loss analysis calculation is conducted to determine the optimal switching point. In addition, an extra resonant zero point is generated by the topology itself, and the inherent over-current protection is guaranteed. Finally, a 500 W prototype is built to demonstrate the theoretical rationality. The output voltage is constant at 400 V even if the input voltage varies from 160 to 400 V. A peak efficiency of 97.2% is achieved. |
| first_indexed | 2024-04-14T00:39:11Z |
| format | Article |
| id | doaj.art-f2d03f4bf28e480ea1c08bc88809900c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:39:11Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f2d03f4bf28e480ea1c08bc88809900c2022-12-22T02:22:14ZengMDPI AGEnergies1996-10732019-07-011215290510.3390/en12152905en12152905A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range ApplicationsXianxu Huo0Ke Xu1Ruixin Liu2Xi Chen3Zhanchun Li4Haiyun Yan5Electric Power Research Institute of State Grid Tianjin Electric Power Corporation, Tianjin 300384, ChinaState Grid Tianjin Electric Power Corporation, Tianjin 300310, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaState Grid Tianjin Electric Power Corporation Chengxi District Supply Company, Tianjin 300113, ChinaState Grid Tianjin Maintenance Company, Tianjin 300250, ChinaIn this paper, a structure-reconfigurable resonant DC-DC (direct current − direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and wide voltage gain range simultaneously. The characteristics of the LLC (inductor-inductor-capacitor) resonant converter are firstly analyzed. Based on this, through introducing additional resonant elements and adopting the topology morphing method, the proposed converter can be formed. Moreover, a novel parameter selection method is discussed to satisfy both working states. Then, a detailed loss analysis calculation is conducted to determine the optimal switching point. In addition, an extra resonant zero point is generated by the topology itself, and the inherent over-current protection is guaranteed. Finally, a 500 W prototype is built to demonstrate the theoretical rationality. The output voltage is constant at 400 V even if the input voltage varies from 160 to 400 V. A peak efficiency of 97.2% is achieved.https://www.mdpi.com/1996-1073/12/15/2905structure-reconfigurablesoft-switchingresonant DC-DC converterloss analysisover-current protection |
| spellingShingle | Xianxu Huo Ke Xu Ruixin Liu Xi Chen Zhanchun Li Haiyun Yan A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications Energies structure-reconfigurable soft-switching resonant DC-DC converter loss analysis over-current protection |
| title | A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications |
| title_full | A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications |
| title_fullStr | A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications |
| title_full_unstemmed | A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications |
| title_short | A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications |
| title_sort | structure reconfigurable soft switching dc dc converter for wide range applications |
| topic | structure-reconfigurable soft-switching resonant DC-DC converter loss analysis over-current protection |
| url | https://www.mdpi.com/1996-1073/12/15/2905 |
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