Modeling, Design, and Experimental Verification of a WPT Level-3 Wireless Charger with Compact Secondary Coupler
By:
Onar, Omer C; Galigekere, Veda Prakash ; Pries, Jason L; Su, Gui-Jia ; Zou, Shenli ; Anwar, Saeed ; Wilkins, Jonathan P; Wiles, Randy H; Seiber, Larry E; White, Clifford P
Page Number:
1722-1729
Issue Number:
1
Book Title:
2019 IEEE Applied Power Electronics Conference and Exposition (APEC)
Publication Date:
March 2026
Publisher Location:
IEEE, New Jersey, United States of America
Conference Name:
Applied Power Electronics Conference and Exposition (APEC 2019)
Conference Location:
Anaheim, California, United States of America
Conference Sponsor:
IEEE Power Electronics Society, IEEE Industry Applications Society, Power Source Manufacturers Associationq
This study introduces a wireless power transfer (WPT) Level-3 rated charger with >11 kW nominal output. The proposed system is interoperable for WPT Level-1, 2, and 3 charger applications of which power levels and airgap separations are defined in SAE J2954. The system designed for this study is capable of operating at Z 1 (100-150 mm), Z 2 (140-210 mm) and Z 3 (170-250 mm) vehicle assembly ground clearance range classes with a very compact vehicle-side (secondary) coupler. The couplers are characterized for the maximum output power (P out ) and the coupling coefficient (k) with different airgaps. System frequency response and the sensitivity analysis are presented. Experimental results are shown for 190.5 mm and 216 mm airgap separations. These results demonstrate that the proposed system with a very compact secondary can be operated at these ground clearance classes with high efficiency at WPT level-3 charging levels.
