Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid
The Dual Active Bridge (DAB) DC-DC converter has the ability of bidirectional power transmission and the modulation scheme that is easy to implement, which can ensure the efficient transmission of energy in the system. Therefore, it is often used in various scenarios of small DC grid, such as energy...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1115146/full |
| _version_ | 1797956552067383296 |
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| author | Shuhuai Shi Junli Du Binbing Xia Dawei Xia Honglu Guan Feng Wang |
| author_facet | Shuhuai Shi Junli Du Binbing Xia Dawei Xia Honglu Guan Feng Wang |
| author_sort | Shuhuai Shi |
| collection | DOAJ |
| description | The Dual Active Bridge (DAB) DC-DC converter has the ability of bidirectional power transmission and the modulation scheme that is easy to implement, which can ensure the efficient transmission of energy in the system. Therefore, it is often used in various scenarios of small DC grid, such as energy storage, photovoltaic system, electric vehicle charging and so on. The main methods to improve the efficiency of dual active bridge include reducing the effective value of current and widening the soft switching area. Based on the above idea, an optimized extended phase-shift (EPS) modulation strategy is proposed in this paper. The modulation strategy achieves the goal of reducing the effective value of the current through the constraint optimization of the corresponding variables, and then improves the efficiency of the converter. In this paper, the working principles of several typical modulation strategies are introduced in detail, and then the power characteristics and soft-switching characteristics of the new method and other commonly used modulation schemes are analyzed and compared. Finally, the effectiveness of the optimization method for extended phase-shift modulation strategy is verified by the dual active bridge experimental prototype. |
| first_indexed | 2024-04-10T23:51:45Z |
| format | Article |
| id | doaj.art-cef779ad970444a9a48f6f93ffa66743 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-10T23:51:45Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-cef779ad970444a9a48f6f93ffa667432023-01-10T18:25:05ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-01-011010.3389/fenrg.2022.11151461115146Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power gridShuhuai Shi0Junli Du1Binbing Xia2Dawei Xia3Honglu Guan4Feng Wang5State Grid Henan Electric Power Research Institute, Zhengzhou, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an, ChinaThe Dual Active Bridge (DAB) DC-DC converter has the ability of bidirectional power transmission and the modulation scheme that is easy to implement, which can ensure the efficient transmission of energy in the system. Therefore, it is often used in various scenarios of small DC grid, such as energy storage, photovoltaic system, electric vehicle charging and so on. The main methods to improve the efficiency of dual active bridge include reducing the effective value of current and widening the soft switching area. Based on the above idea, an optimized extended phase-shift (EPS) modulation strategy is proposed in this paper. The modulation strategy achieves the goal of reducing the effective value of the current through the constraint optimization of the corresponding variables, and then improves the efficiency of the converter. In this paper, the working principles of several typical modulation strategies are introduced in detail, and then the power characteristics and soft-switching characteristics of the new method and other commonly used modulation schemes are analyzed and compared. Finally, the effectiveness of the optimization method for extended phase-shift modulation strategy is verified by the dual active bridge experimental prototype.https://www.frontiersin.org/articles/10.3389/fenrg.2022.1115146/fulldual-active-bridge converterefficiencysoft switchingmodulation strategyconstrained optimization |
| spellingShingle | Shuhuai Shi Junli Du Binbing Xia Dawei Xia Honglu Guan Feng Wang Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid Frontiers in Energy Research dual-active-bridge converter efficiency soft switching modulation strategy constrained optimization |
| title | Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid |
| title_full | Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid |
| title_fullStr | Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid |
| title_full_unstemmed | Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid |
| title_short | Research on optimum extended phase-shift control with minimum peak-to-peak current of DAB converter applied to small DC power grid |
| title_sort | research on optimum extended phase shift control with minimum peak to peak current of dab converter applied to small dc power grid |
| topic | dual-active-bridge converter efficiency soft switching modulation strategy constrained optimization |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1115146/full |
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