Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems
Wireless power transfer (WPT) for electric vehicles is an emerging technology and a future trend. To increase power density, the coupling coefficient of coils can be designed to be large, forming a strongly coupled WPT system, different from the conventional loosely coupled WPT system. In this way,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/13/1/6 |
| _version_ | 1827662083972399104 |
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| author | Yiming Zhang Zhiwei Shen Yuanchao Wu Hui Wang Wenbin Pan |
| author_facet | Yiming Zhang Zhiwei Shen Yuanchao Wu Hui Wang Wenbin Pan |
| author_sort | Yiming Zhang |
| collection | DOAJ |
| description | Wireless power transfer (WPT) for electric vehicles is an emerging technology and a future trend. To increase power density, the coupling coefficient of coils can be designed to be large, forming a strongly coupled WPT system, different from the conventional loosely coupled WPT system. In this way, the power density and efficiency of the WPT system can be improved. This paper investigates the dual-side phase-shift control of the strongly coupled series–series compensated WPT systems. The mathematical models based on the conventional first harmonic approximation and differential equations for the dual-side phase-shift control are built and compared. The dual-side phase-shift angle and its impact on the power transfer direction and soft switching are investigated. It is found that synchronous rectification at strong couplings can lead to hard switching because the dual-side phase shift in this case is over 90°. In comparison, a relatively high efficiency and soft switching can be realized when the dual-side phase shift is below 90°. The experimental results have validated the analysis. |
| first_indexed | 2024-03-10T00:19:13Z |
| format | Article |
| id | doaj.art-bccd39e7a94542c991c1b14ff47d5b5f |
| institution | Directory Open Access Journal |
| issn | 2032-6653 |
| language | English |
| last_indexed | 2024-03-10T00:19:13Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj.art-bccd39e7a94542c991c1b14ff47d5b5f2023-11-23T15:45:47ZengMDPI AGWorld Electric Vehicle Journal2032-66532021-12-01131610.3390/wevj13010006Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging SystemsYiming Zhang0Zhiwei Shen1Yuanchao Wu2Hui Wang3Wenbin Pan4School of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaSchool of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaSchool of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaSchool of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaSchool of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaWireless power transfer (WPT) for electric vehicles is an emerging technology and a future trend. To increase power density, the coupling coefficient of coils can be designed to be large, forming a strongly coupled WPT system, different from the conventional loosely coupled WPT system. In this way, the power density and efficiency of the WPT system can be improved. This paper investigates the dual-side phase-shift control of the strongly coupled series–series compensated WPT systems. The mathematical models based on the conventional first harmonic approximation and differential equations for the dual-side phase-shift control are built and compared. The dual-side phase-shift angle and its impact on the power transfer direction and soft switching are investigated. It is found that synchronous rectification at strong couplings can lead to hard switching because the dual-side phase shift in this case is over 90°. In comparison, a relatively high efficiency and soft switching can be realized when the dual-side phase shift is below 90°. The experimental results have validated the analysis.https://www.mdpi.com/2032-6653/13/1/6distortiondual-side phase shiftmagnetic resonancesoft switchingwireless power transfer (WPT) |
| spellingShingle | Yiming Zhang Zhiwei Shen Yuanchao Wu Hui Wang Wenbin Pan Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems World Electric Vehicle Journal distortion dual-side phase shift magnetic resonance soft switching wireless power transfer (WPT) |
| title | Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems |
| title_full | Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems |
| title_fullStr | Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems |
| title_full_unstemmed | Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems |
| title_short | Dual-Side Phase-Shift Control for Strongly Coupled Series–Series Compensated Electric Vehicle Wireless Charging Systems |
| title_sort | dual side phase shift control for strongly coupled series series compensated electric vehicle wireless charging systems |
| topic | distortion dual-side phase shift magnetic resonance soft switching wireless power transfer (WPT) |
| url | https://www.mdpi.com/2032-6653/13/1/6 |
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