Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy
This study presents a new bidirectional multi-resonant DC-DC converter, which is named CLTC. The converter adds an auxiliary transformer and an extra resonant capacitor based on a LLC resonant DC-DC converter, achieving zero-voltage switching (ZVS) for the input inverting switches and zero-current s...
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MDPI AG
2018
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oai:localhost:DHQB_123456789-40802018-10-22T08:45:01Z Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy Shu-huai Zhang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Yi-feng Wang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Bo Chen (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Fu-qiang Han (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Qing-cui Wang (Tianjin Research Institute of Electric Science Co., Ltd. (TRIED), Tianjin 300300, China) Technology This study presents a new bidirectional multi-resonant DC-DC converter, which is named CLTC. The converter adds an auxiliary transformer and an extra resonant capacitor based on a LLC resonant DC-DC converter, achieving zero-voltage switching (ZVS) for the input inverting switches and zero-current switching (ZCS) for the output rectifiers in all load range. The converter also has a wide gain range in two directions. When the load is light, a half-bridge configuration is adopted instead of a full-bridge configuration to solve the problem of voltage regulation. By this method, the voltage gain becomes monotonous and controllable. Besides, the digital synchronous rectification strategy is proposed in forward mode without adding any auxiliary circuit. The conduction time of synchronous rectifiers equals the estimation value of body diodes’ conduction time with the lightest load. Power loss analysis is also conducted in different situations. Finally, the theoretical analysis is validated by a 5 kW prototype. 2018-09-12T02:30:48Z 2018-09-12T02:30:48Z 2018 Other http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4080 MDPI AG |
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Trung tâm Học liệu Đại học Quảng Bình (Dspace) |
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Trung tâm Học liệu Đại học Quảng Bình (Dspace) |
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Technology |
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Technology Shu-huai Zhang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Yi-feng Wang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Bo Chen (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Fu-qiang Han (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Qing-cui Wang (Tianjin Research Institute of Electric Science Co., Ltd. (TRIED), Tianjin 300300, China) Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| description |
This study presents a new bidirectional multi-resonant DC-DC converter, which is named CLTC. The converter adds an auxiliary transformer and an extra resonant capacitor based on a LLC resonant DC-DC converter, achieving zero-voltage switching (ZVS) for the input inverting switches and zero-current switching (ZCS) for the output rectifiers in all load range. The converter also has a wide gain range in two directions. When the load is light, a half-bridge configuration is adopted instead of a full-bridge configuration to solve the problem of voltage regulation. By this method, the voltage gain becomes monotonous and controllable. Besides, the digital synchronous rectification strategy is proposed in forward mode without adding any auxiliary circuit. The conduction time of synchronous rectifiers equals the estimation value of body diodes’ conduction time with the lightest load. Power loss analysis is also conducted in different situations. Finally, the theoretical analysis is validated by a 5 kW prototype. |
| format |
Other |
| author |
Shu-huai Zhang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Yi-feng Wang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Bo Chen (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Fu-qiang Han (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Qing-cui Wang (Tianjin Research Institute of Electric Science Co., Ltd. (TRIED), Tianjin 300300, China) |
| author_facet |
Shu-huai Zhang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Yi-feng Wang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Bo Chen (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Fu-qiang Han (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Qing-cui Wang (Tianjin Research Institute of Electric Science Co., Ltd. (TRIED), Tianjin 300300, China) |
| author_sort |
Shu-huai Zhang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) Yi-feng Wang (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China) |
| title |
Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| title_short |
Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| title_full |
Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| title_fullStr |
Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| title_full_unstemmed |
Studies on a Hybrid Full-Bridge/Half-Bridge Bidirectional CLTC Multi-Resonant DC-DC Converter with a Digital Synchronous Rectification Strategy |
| title_sort |
studies on a hybrid full-bridge/half-bridge bidirectional cltc multi-resonant dc-dc converter with a digital synchronous rectification strategy |
| publisher |
MDPI AG |
| publishDate |
2018 |
| url |
http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4080 |
| _version_ |
1717292472420270080 |
| score |
9,463379 |