Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router
Although the dead-time optimization design of resonant converters has been widely researched, classical design methods focus more on achieving zero-voltage switching (ZVS) operation. The body diode loss is always ignored, which results in low-efficiency of the converter, especially, in energy router...
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| Format: | Article |
| Language: | English |
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China electric power research institute
2024-01-01
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| Series: | CSEE Journal of Power and Energy Systems |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9666820/ |
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| _version_ | 1850179538428887040 |
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| author | Chenghao Sun Qiuye Sun Rui Wang Yuyang Li Dazhong Ma |
| author_facet | Chenghao Sun Qiuye Sun Rui Wang Yuyang Li Dazhong Ma |
| author_sort | Chenghao Sun |
| collection | DOAJ |
| description | Although the dead-time optimization design of resonant converters has been widely researched, classical design methods focus more on achieving zero-voltage switching (ZVS) operation. The body diode loss is always ignored, which results in low-efficiency of the converter, especially, in energy router (ER). To deal with this problem, this paper proposes an adaptive deadtime modulation scheme for bidirectional LLC resonant converters in ER. First, the power loss of the MOSFET is analyzed based on the dead-time. Then, a novel dead-time optimization modulation principle is proposed. It can eliminate the body diode loss of MOSFET compared with existing literature. Based on the optimization modulation principle, this paper proposes an adaptive dead-time modulation scheme. To this end, the converter adopting the scheme no longer needs to calculate dead-time, which simplifies the parameter design process. Meanwhile, this scheme enables dead-time to dynamically change with working conditions according to the dead-time optimization modulation principle. With these effects, the ZVS operation is achieved, and the body diode loss of MOSFET is also eliminated. Furthermore, a digital implementation method is designed to make the proposed modulation scheme have fast-transient response. Finally, experimental results show that the proposed dead-time modulation scheme enables converters to achieve ZVS operation in all working conditions, and has higher efficiency than classical dead-time design methods. |
| format | Article |
| id | doaj-art-40034377274a4567adebcc3ecb03045f |
| institution | OA Journals |
| issn | 2096-0042 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | China electric power research institute |
| record_format | Article |
| series | CSEE Journal of Power and Energy Systems |
| spelling | doaj-art-40034377274a4567adebcc3ecb03045f2025-08-20T02:18:28ZengChina electric power research instituteCSEE Journal of Power and Energy Systems2096-00422024-01-011041710172110.17775/CSEEJPES.2020.049109666820Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy RouterChenghao Sun0Qiuye Sun1Rui Wang2Yuyang Li3Dazhong Ma4College of Information Science and Engineering, Northeastern University,Shenyang,China,110819College of Information Science and Engineering, Northeastern University,Shenyang,China,110819College of Information Science and Engineering, Northeastern University,Shenyang,China,110819College of Information Science and Engineering, Northeastern University,Shenyang,China,110819College of Information Science and Engineering, Northeastern University,Shenyang,China,110819Although the dead-time optimization design of resonant converters has been widely researched, classical design methods focus more on achieving zero-voltage switching (ZVS) operation. The body diode loss is always ignored, which results in low-efficiency of the converter, especially, in energy router (ER). To deal with this problem, this paper proposes an adaptive deadtime modulation scheme for bidirectional LLC resonant converters in ER. First, the power loss of the MOSFET is analyzed based on the dead-time. Then, a novel dead-time optimization modulation principle is proposed. It can eliminate the body diode loss of MOSFET compared with existing literature. Based on the optimization modulation principle, this paper proposes an adaptive dead-time modulation scheme. To this end, the converter adopting the scheme no longer needs to calculate dead-time, which simplifies the parameter design process. Meanwhile, this scheme enables dead-time to dynamically change with working conditions according to the dead-time optimization modulation principle. With these effects, the ZVS operation is achieved, and the body diode loss of MOSFET is also eliminated. Furthermore, a digital implementation method is designed to make the proposed modulation scheme have fast-transient response. Finally, experimental results show that the proposed dead-time modulation scheme enables converters to achieve ZVS operation in all working conditions, and has higher efficiency than classical dead-time design methods.https://ieeexplore.ieee.org/document/9666820/Adaptive modulationbidirectional LLCbody diode lossdead-timeenergy routerZVS |
| spellingShingle | Chenghao Sun Qiuye Sun Rui Wang Yuyang Li Dazhong Ma Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router CSEE Journal of Power and Energy Systems Adaptive modulation bidirectional LLC body diode loss dead-time energy router ZVS |
| title | Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router |
| title_full | Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router |
| title_fullStr | Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router |
| title_full_unstemmed | Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router |
| title_short | Adaptive Dead-Time Modulation Scheme for Bidirectional LLC Resonant Converter in Energy Router |
| title_sort | adaptive dead time modulation scheme for bidirectional llc resonant converter in energy router |
| topic | Adaptive modulation bidirectional LLC body diode loss dead-time energy router ZVS |
| url | https://ieeexplore.ieee.org/document/9666820/ |
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