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A Method of the Improvement of Wireless Power Transfer (WPT) System Efficiency, Compatibility, EMI Reduction, and Foreign Object Detection (FOD) for EV Applications Hyundai Motor Company
- Format:
- Book
- Conference/Event
- Author/Creator:
- Ch'a, Chae-ŭn, author.
- Conference Name:
- WCX SAE World Congress Experience (2020-04-21 : Detroit, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2020
- Summary:
- During the charging Electric Vehicle (EV), power transfer occurs in the power electronics of an EV powertrain. Understanding how the Wireless Power Transfer (WPT) occurs would be beneficial for achieving convenient charging method. This paper focuses on improving WPT system pad compatibility, power transfer efficiency, EMI reduction, and Foreign Object Detection (FOD). The choice of convertible WPT pad for circular and DD type coil, improvement of pad compatibility is analyzed in this paper. In addition, several control methods of increasing WPT system efficiency are proposed. Firstly, the effect of Full Bridge - Half Bridge (FB-HB) is introduced, and the influence of a Bridgeless control scheme is discussed. A new, ferrite pad structure is applied to WPT system in order to achieve EMI reduction. Lastly, a new strategy of Foreign Object Detection (FOD) is suggested for WPT system using phase difference and frequency variation detection
- Notes:
- Vendor supplied data
- Publisher Number:
- 2020-01-0530
- Access Restriction:
- Restricted for use by site license
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