Wireless power transfer technology using full-bridge current-fed topology for medium power applications

This paper studies, explores and analyses a wireless power transfer (WPT) system using current-fed power electronics topology for electric vehicles and battery charging applications. The main contribution is analysis, design, and implementation of a current-fed technology for WPT application. The required resonance in both the transmitter and receiver coils is parallel ( L )( C ) and series ( LC ) type, respectively. A detailed mathematical analysis and design have been reported. Stiff DC current at the input of the inverter limits the inverter switch current stress. Also, the inductor in DClink provides natural short-circuit protection during inverter fault. It is quite important in such application. Resonant converter facilitates soft-switching at turn-off of the transmitter side switches. Also, soft-commutation of rectifier diodes reduces reverse recovery loss. Mathematical analysis is verified by simulation results using PSIM 9.3. A 420 W proof-of-concept lab hardware prototype is developed and the experimental results are demonstrated to validate the mathematical analysis and simulation results. The maximum efficiency of DC-DC WPT stage obtained from the proof-of-concept lab-prototype is close to 90% with a coefficient of coupling 18%. It is suitable for solar-to-vehicle and single-phase residential slow charging.

[1]  M. Soljačić,et al.  Wireless Power Transfer via Strongly Coupled Magnetic Resonances , 2007, Science.

[2]  Jenshan Lin,et al.  Design and Test of a High-Power High-Efficiency Loosely Coupled Planar Wireless Power Transfer System , 2009, IEEE Transactions on Industrial Electronics.

[3]  John Boys,et al.  A parallel topology for inductive power transfer power supplies , 2014, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

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

[5]  U. Madawala,et al.  A Bidirectional Inductive Power Interface for Electric Vehicles in V2G Systems , 2011, IEEE Transactions on Industrial Electronics.

[6]  Hunter H. Wu,et al.  A High Efficiency 5 kW Inductive Charger for EVs Using Dual Side Control , 2012, IEEE Transactions on Industrial Informatics.

[7]  S. Dusmez,et al.  Comprehensive Topological Analysis of Conductive and Inductive Charging Solutions for Plug-In Electric Vehicles , 2012, IEEE Transactions on Vehicular Technology.

[8]  Hao Leo Li,et al.  A Direct AC–AC Converter for Inductive Power-Transfer Systems , 2012, IEEE Transactions on Power Electronics.

[9]  Grant Covic,et al.  Development of a Single-Sided Flux Magnetic Coupler for Electric Vehicle IPT Charging Systems , 2013, IEEE Transactions on Industrial Electronics.

[10]  Novel soft-switching snubberless naturally clamped current-fed full-bridge front-end converter based bidirectional inverter for renewables, microgrid and UPS applications , 2014, 2013 IEEE Energy Conversion Congress and Exposition.

[11]  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.

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

[13]  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.

[14]  Giuseppe Buja,et al.  Integration of a Photovoltaic Panel with an Electric City Car , 2014 .

[15]  Jia-You Lee,et al.  Design and implementation of weaving-type pad for contactless EV inductive charging system , 2014 .

[16]  Kazuyuki Ozaki,et al.  Phase and intensity control of multiple coil currents in mid-range wireless power transfer , 2014 .

[17]  Akshay Kumar Rathore,et al.  Small-Signal Modeling of Active-Clamped ZVS Current-Fed Full-Bridge Isolated DC/DC Converter and Control System Implementation Using PSoC , 2014, IEEE Transactions on Industrial Electronics.

[18]  Wilson Eberle,et al.  Overview of wireless power transfer technologies for electric vehicle battery charging , 2014 .

[19]  Akshay Kumar Rathore,et al.  Novel Bidirectional Snubberless Naturally Commutated Soft-Switching Current-Fed Full-Bridge Isolated DC/DC Converter for Fuel Cell Vehicles , 2014, IEEE Transactions on Industrial Electronics.

[20]  Xavier del Toro Garcia,et al.  Design, implementation issues and performance of an inductive power transfer system for electric vehicle chargers with series–series compensation , 2015 .

[21]  Yan Wang,et al.  Output voltage control of inductive power transfer system based on extremum seeking control , 2015 .

[22]  Jie Li,et al.  A Maximum Efficiency Point Tracking Control Scheme for Wireless Power Transfer Systems Using Magnetic Resonant Coupling , 2015, IEEE Transactions on Power Electronics.

[23]  Giuseppe Buja,et al.  Design and Experimentation of WPT Charger for Electric City Car , 2015, IEEE Transactions on Industrial Electronics.

[24]  Omer C. Onar,et al.  Primary-Side Power Flow Control of Wireless Power Transfer for Electric Vehicle Charging , 2015, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[25]  Xueqing Yuan,et al.  Compensation topology for flat spiral coil inductive power transfer systems , 2015 .

[26]  B. Zhang,et al.  Frequency, Impedance Characteristics and HF Converters of Two-Coil and Four-Coil Wireless Power Transfer , 2015, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[27]  Chunting Chris Mi,et al.  Wireless Power Transfer for Electric Vehicle Applications , 2015, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[28]  Yang Zou,et al.  Robust design optimisation for inductive power transfer systems from topology collection based on an evolutionary multi-objective algorithm , 2015 .

[29]  Jin Zhang,et al.  Quantitative investigation into the use of resonant magneto-inductive links for efficient wireless power transfer , 2016 .