Design and Implementation of an Optimized 100 kW Stationary Wireless Charging System for EV Battery Recharging

This paper presents the design, analyses and implementation of an optimized single stage high power wireless charging system capable of transferring 100 kW at an operating frequency of 22 kHz and a coil-to-coil distance of 5 inches. The detailed design and implementation of the power electronics including the high frequency inverter and rectifier and wireless power transfer coils along with the resonant stage are described. FEA simulation results of the coils and the resonant network analysis are validated by using a Venable frequency response analyzer. Experimental results corresponding to 50 kW operation are presented to validate the design process.

[1]  Robert L. Steigerwald.  A comparison of half-bridge resonant converter topologies , 1987 .

[2]  Chun T. Rim,et al.  Advances in Wireless Power Transfer Systems for Roadway-Powered Electric Vehicles , 2015, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[3]  P. T. Krein,et al.  Review of Battery Charger Topologies, Charging Power Levels, and Infrastructure for Plug-In Electric and Hybrid Vehicles , 2013, IEEE Transactions on Power Electronics.

[4]  Seung-Hwan Lee,et al.  Development of 1-MW Inductive Power Transfer System for a High-Speed Train , 2015, IEEE Transactions on Industrial Electronics.

[5]  Omer C. Onar,et al.  Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation , 2017, 2017 IEEE Energy Conversion Congress and Exposition (ECCE).

[6]  Grant Anthony Covic,et al.  Modern Trends in Inductive Power Transfer for Transportation Applications , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[7]  Richard Barney Carlson,et al.  Enabling Fast Charging: A Technology Gap Assessment , 2017 .

[8]  Grant Covic,et al.  Inductive Power Transfer , 2013, Proceedings of the IEEE.

[9]  J. T. Boys,et al.  Design and Optimization of Circular Magnetic Structures for Lumped Inductive Power Transfer Systems , 2011, IEEE Transactions on Power Electronics.

[10]  Arthur F. Witulski,et al.  Introduction to modeling of transformers and coupled inductors , 1995 .

[11]  Dong-Ho Cho,et al.  Design and Implementation of Shaped Magnetic-Resonance-Based Wireless Power Transfer System for Roadway-Powered Moving Electric Vehicles , 2014, IEEE Transactions on Industrial Electronics.