Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency
This paper presents a general circuit and control design method for wireless power transfer (WPT) systems in DC microgrids to achieve optimal power transfer efficiency, while maintain accurate output voltage regulation. An auxiliary inductor is added at the transmitter resonator to form a current si...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Electronics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/felec.2023.968549/full |
| _version_ | 1797868124174811136 |
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| author | Chenchen Li Kaiyuan Wang Yuan Mao |
| author_facet | Chenchen Li Kaiyuan Wang Yuan Mao |
| author_sort | Chenchen Li |
| collection | DOAJ |
| description | This paper presents a general circuit and control design method for wireless power transfer (WPT) systems in DC microgrids to achieve optimal power transfer efficiency, while maintain accurate output voltage regulation. An auxiliary inductor is added at the transmitter resonator to form a current sink to ensure zero voltage switching (ZVS) of the primary-side full-bridge inverter with even extreme-light load conditions. Besides, an adaptive proportional-integral (PI) controller is adopted to track the output voltage references by regulating the phase shift angle of the phase shift control for the full-bridge inverter. The coefficients of the adaptive proportional-integral controller are determined by the inductor of the auxiliary inductor. Both simulation and experimental results have validated the effectiveness of the proposed circuit and control design in achieving optimal efficiency and output voltage regulation for wireless power transfer systems in DC microgrids with source and load variations. |
| first_indexed | 2024-04-09T23:52:10Z |
| format | Article |
| id | doaj.art-25a31d95d0b04e0aa5d14a158264cdb5 |
| institution | Directory Open Access Journal |
| issn | 2673-5857 |
| language | English |
| last_indexed | 2024-04-09T23:52:10Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Electronics |
| spelling | doaj.art-25a31d95d0b04e0aa5d14a158264cdb52023-03-17T05:52:56ZengFrontiers Media S.A.Frontiers in Electronics2673-58572023-03-01410.3389/felec.2023.968549968549Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiencyChenchen Li0Kaiyuan Wang1Yuan Mao2Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, The Zhejiang University of Technology, Hangzhou, Zhejiang, ChinaThis paper presents a general circuit and control design method for wireless power transfer (WPT) systems in DC microgrids to achieve optimal power transfer efficiency, while maintain accurate output voltage regulation. An auxiliary inductor is added at the transmitter resonator to form a current sink to ensure zero voltage switching (ZVS) of the primary-side full-bridge inverter with even extreme-light load conditions. Besides, an adaptive proportional-integral (PI) controller is adopted to track the output voltage references by regulating the phase shift angle of the phase shift control for the full-bridge inverter. The coefficients of the adaptive proportional-integral controller are determined by the inductor of the auxiliary inductor. Both simulation and experimental results have validated the effectiveness of the proposed circuit and control design in achieving optimal efficiency and output voltage regulation for wireless power transfer systems in DC microgrids with source and load variations.https://www.frontiersin.org/articles/10.3389/felec.2023.968549/fullwireless power transfer (WPT)DC microgridsoptimal efficiencyzero voltage switching (ZVS)output voltage regulation |
| spellingShingle | Chenchen Li Kaiyuan Wang Yuan Mao Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency Frontiers in Electronics wireless power transfer (WPT) DC microgrids optimal efficiency zero voltage switching (ZVS) output voltage regulation |
| title | Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency |
| title_full | Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency |
| title_fullStr | Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency |
| title_full_unstemmed | Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency |
| title_short | Design of a wireless charging system in DC microgrids with accurate output regulation and optimal efficiency |
| title_sort | design of a wireless charging system in dc microgrids with accurate output regulation and optimal efficiency |
| topic | wireless power transfer (WPT) DC microgrids optimal efficiency zero voltage switching (ZVS) output voltage regulation |
| url | https://www.frontiersin.org/articles/10.3389/felec.2023.968549/full |
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