A dynamic CPT system LC Compensated with a six-plate capacitive coupler for wireless charging of electric vehicle in motion

This paper proposes a dynamic CPT system LC compensated with a six-plate capacitive coupler to charge electric vehicles in motion. Due to using a six-plate coupler, the electric fields emission to the environment around the coupler declined, which is safe for individuals around the coupler. This system is safe for drivers, and also with regard to the 150mm of the air-gap distance, this system could cover a wide range of electric vehicles. Capacitive power transfer (CPT) is an effective technology to transfer power wirelessly via high-frequency electric fields. Maxwell software is used to design the capacitive coupler and also for simulation of electric fields emission to the environment around the coupler. The fundamental harmonics approximation (FHA) is used for analyzing the circuit performance. This system achieves 261W output power with 90% efficiency.

[1]  Sungwoo Lee,et al.  On-Line Electric Vehicle using inductive power transfer system , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[2]  J. Huh,et al.  Narrow-Width Inductive Power Transfer System for Online Electrical Vehicles , 2011, IEEE Transactions on Power Electronics.

[3]  Byunghun Lee,et al.  Characterization of novel Inductive Power Transfer Systems for On-Line Electric Vehicles , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[4]  J. Huh,et al.  New Cross-Segmented Power Supply Rails for Roadway-Powered Electric Vehicles , 2013, IEEE Transactions on Power Electronics.

[5]  D. M. Vilathgamuwa,et al.  Wireless Power Transfer (WPT) for Electric Vehicles (EVs)—Present and Future Trends , 2014 .

[6]  Chun T. Rim,et al.  Ultraslim S-Type Power Supply Rails for Roadway-Powered Electric Vehicles , 2015, IEEE Transactions on Power Electronics.

[7]  Daniel C. Ludois,et al.  A Survey of Wireless Power Transfer and a Critical Comparison of Inductive and Capacitive Coupling for Small Gap Applications , 2015, IEEE Transactions on Power Electronics.

[8]  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.

[9]  Dongsuk Kum,et al.  Economic Analysis of the Dynamic Charging Electric Vehicle , 2015, IEEE Transactions on Power Electronics.

[10]  Gyu-Hyeong Cho,et al.  Uniform Power I-Type Inductive Power Transfer System With DQ-Power Supply Rails for On-Line Electric Vehicles , 2015, IEEE Transactions on Power Electronics.

[11]  Chris Mi,et al.  A dynamic capacitive power transfer system with reduced power pulsation , 2016, 2016 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW).

[12]  Chunting Chris Mi,et al.  A Dynamic Charging System With Reduced Output Power Pulsation for Electric Vehicles , 2016, IEEE Transactions on Industrial Electronics.

[13]  Fei Lu,et al.  High Power Capacitive Power Transfer for Electric Vehicle Charging Applications , 2017 .

[14]  Weiguo Liu,et al.  Six-Plate Capacitive Coupler to Reduce Electric Field Emission in Large Air-Gap Capacitive Power Transfer , 2018, IEEE Transactions on Power Electronics.