An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control
Dual active bridge (DAB) converters are extensively used due to the advantages of wide voltage regulation range and easy realization of soft switching. Besides, the concept of partial power converters (PPCs) has been widely applied to increase the converter efficiency by reducing the power actually...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Open Journal of Power Electronics |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10264141/ |
| _version_ | 1797357919402983424 |
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| author | Shanshan Gao Yixue Zhang Yijie Wang Jianxing Liu Dianguo Xu |
| author_facet | Shanshan Gao Yixue Zhang Yijie Wang Jianxing Liu Dianguo Xu |
| author_sort | Shanshan Gao |
| collection | DOAJ |
| description | Dual active bridge (DAB) converters are extensively used due to the advantages of wide voltage regulation range and easy realization of soft switching. Besides, the concept of partial power converters (PPCs) has been widely applied to increase the converter efficiency by reducing the power actually processed by the converter. Therefore, in this article, the DAB converter and PPC are combined. And a high frequency DAB-based PPC aiming at efficiency optimization is selected out by analyzing and comparing the characteristics of several connections. Considering the wide voltage regulation range of DAB-based PPC, the extended-phase-shift-based control strategy aiming at zero-voltage switching (ZVS) range and current stress optimization is analyzed and adopted in this article. With the trend of high frequency for power converters, the non-ideal factors like output capacitors of switches need to be considered to improve the performance. The output capacitors are taken into consideration when analyzing the ZVS performance and the magnetizing inductor is utilized to expand ZVS range. To verify correctness of theoretical analysis, a prototype using GaN devices with 1 kW rated output power and 500 kHz switching frequency is built. The experimental results are consistent with the analysis. |
| first_indexed | 2024-03-08T14:52:26Z |
| format | Article |
| id | doaj.art-6bc0b21c02034767adb36e66f68bf6e4 |
| institution | Directory Open Access Journal |
| issn | 2644-1314 |
| language | English |
| last_indexed | 2024-03-08T14:52:26Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Power Electronics |
| spelling | doaj.art-6bc0b21c02034767adb36e66f68bf6e42024-01-11T00:02:29ZengIEEEIEEE Open Journal of Power Electronics2644-13142023-01-01481782710.1109/OJPEL.2023.331948810264141An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift ControlShanshan Gao0https://orcid.org/0000-0002-6156-8375Yixue Zhang1https://orcid.org/0009-0003-0374-7337Yijie Wang2https://orcid.org/0000-0001-6959-8619Jianxing Liu3https://orcid.org/0000-0002-2201-3887Dianguo Xu4https://orcid.org/0000-0002-1594-8625School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, ChinaDepartment of Control Science and Engineering, Harbin Institute of Technology, Harbin, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, ChinaDual active bridge (DAB) converters are extensively used due to the advantages of wide voltage regulation range and easy realization of soft switching. Besides, the concept of partial power converters (PPCs) has been widely applied to increase the converter efficiency by reducing the power actually processed by the converter. Therefore, in this article, the DAB converter and PPC are combined. And a high frequency DAB-based PPC aiming at efficiency optimization is selected out by analyzing and comparing the characteristics of several connections. Considering the wide voltage regulation range of DAB-based PPC, the extended-phase-shift-based control strategy aiming at zero-voltage switching (ZVS) range and current stress optimization is analyzed and adopted in this article. With the trend of high frequency for power converters, the non-ideal factors like output capacitors of switches need to be considered to improve the performance. The output capacitors are taken into consideration when analyzing the ZVS performance and the magnetizing inductor is utilized to expand ZVS range. To verify correctness of theoretical analysis, a prototype using GaN devices with 1 kW rated output power and 500 kHz switching frequency is built. The experimental results are consistent with the analysis.https://ieeexplore.ieee.org/document/10264141/Extended-phase-shift controlDAB converterspartial power convertersswitch output capacitors |
| spellingShingle | Shanshan Gao Yixue Zhang Yijie Wang Jianxing Liu Dianguo Xu An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control IEEE Open Journal of Power Electronics Extended-phase-shift control DAB converters partial power converters switch output capacitors |
| title | An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control |
| title_full | An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control |
| title_fullStr | An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control |
| title_full_unstemmed | An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control |
| title_short | An Optimal Control Strategy for the DAB-Based Partial Power Converter Based on Extended-Phase-Shift Control |
| title_sort | optimal control strategy for the dab based partial power converter based on extended phase shift control |
| topic | Extended-phase-shift control DAB converters partial power converters switch output capacitors |
| url | https://ieeexplore.ieee.org/document/10264141/ |
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