Hybrid wireless power transfer

Both magnetic field and electric field can be used for transferring power wirelessly. But the up-to-date researches on wireless power transfer have been either inductive power transfer (magnetic field) or capacitive power transfer (electric field). An improved power transfer mode called hybrid wireless power transfer (HWPT) is proposed and evaluated in this paper. Power is transferred from primary side to secondary side through magnetic field and electric field at the same time with a single DC power supply and inverter. Theoretical modeling and derivation are carried out to validate the feasibility of the proposed power transfer mode. A comparison between HWPT, inductive power transfer (IPT) and capacitive power transfer (CPT) is presented. The advantages and disadvantages of the proposed wireless power transfer form are studied.

[1]  Xun Liu,et al.  Equivalent Circuit Modeling of a Multilayer Planar Winding Array Structure for Use in a Universal Contactless Battery Charging Platform , 2005, IEEE Transactions on Power Electronics.

[2]  Chengbin Ma,et al.  Parameter Design for a 6.78-MHz Wireless Power Transfer System Based on Analytical Derivation of Class E Current-Driven Rectifier , 2016, IEEE Transactions on Power Electronics.

[3]  Chun T. Rim,et al.  A Novel Source-Side Monitored Capacitive Power Transfer System for Contactless Mobile Charger Using Class-E Converter , 2014, 2014 IEEE 79th Vehicular Technology Conference (VTC Spring).

[4]  Chen Duan,et al.  Design of a zero-voltage-switching large-air-gap wireless charger with low electric stress for electric vehicles , 2013 .

[5]  Zhengming Zhao,et al.  Frequency Decrease Analysis of Resonant Wireless Power Transfer , 2014, IEEE Transactions on Power Electronics.

[6]  Grant Covic,et al.  A Bipolar Pad in a 10-kHz 300-W Distributed IPT System for AGV Applications , 2014, IEEE Transactions on Industrial Electronics.

[7]  Xiaoming Zhang,et al.  A General Design Method of Primary Compensation Network for Dynamic WPT System Maintaining Stable Transmission Power , 2016, 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]  Xun Liu,et al.  Optimal Design of a Hybrid Winding Structure for Planar Contactless Battery Charging Platform , 2006, Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting.

[10]  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.