LCL and CL compensations for wireless three phase bi-directional EV charging systems

Performance of inductively coupled electric vehicle (EV) charging systems is significantly affected by the misalignments between charging pads (coils). This paper investigates the use of inductor-capacitor-inductor (LCL) and capacitor-inductor (CL) compensations in wireless charging systems, based on inductive power transfer (IPT), to achieve high tolerance towards pad-misalignments. A three phase bi-directional inductive power transfer (BD-IPT) system is studied with both LCL and CL compensations, and a mathematical model is developed to investigate its performance under pad-misalignments. Theoretical results are presented in comparison with simulations, verifying the proposed concept and the accuracy of the developed model. Both theoretical and simulation results indicate that the adoption of combined compensations is a promising approach to achieve high tolerance for pad-misalignments during wireless charging.

[1]  Petr Kadurek,et al.  Electric Vehicles and their impact to the electric grid in isolated systems , 2009, 2009 International Conference on Power Engineering, Energy and Electrical Drives.

[2]  S. Y. Ron Hui,et al.  Magnetic Resonance for Wireless Power Transfer [A Look Back] , 2016, IEEE Power Electronics Magazine.

[3]  E. Larsen,et al.  Electric Vehicles for Improved Operation of Power Systems with High Wind Power Penetration , 2008, 2008 IEEE Energy 2030 Conference.

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

[5]  Javier Chivite-Zabalza,et al.  Isolated Double-Twin VSC Topology Using Three-Phase IPTs for High-Power Applications , 2014, IEEE Transactions on Power Electronics.

[6]  Grant Covic,et al.  Steady-State Flat-Pickup Loading Effects in Polyphase Inductive Power Transfer Systems , 2011, IEEE Transactions on Industrial Electronics.

[7]  Udaya K. Madawala,et al.  Modular-based inductive power transfer system for high-power applications , 2012 .

[8]  A. W. Green,et al.  10 kHz inductively coupled power transfer-concept and control , 1994 .

[9]  P. T. Krein,et al.  Review of the Impact of Vehicle-to-Grid Technologies on Distribution Systems and Utility Interfaces , 2013, IEEE Transactions on Power Electronics.

[10]  Takehiro Imura,et al.  Three-phase Wireless Power Transfer for Dynamic Charging of Electric Vehicle for High Efficiency and Reducing Voltage Unbalancing Considering Magnetic Flux Canceling , 2015 .

[11]  D. Greene Measuring energy security: Can the United States achieve oil independence? , 2010 .

[12]  Udaya K. Madawala,et al.  A three-phase bi-directional IPT system for contactless charging of electric vehicles , 2011, 2011 IEEE International Symposium on Industrial Electronics.

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

[14]  Y. Neba,et al.  Model for a Three-Phase Contactless Power Transfer System , 2011, IEEE Transactions on Power Electronics.

[15]  Udaya K. Madawala,et al.  A hybrid bi-directional IPT system with improved spatial tolerance , 2015, 2015 IEEE 2nd International Future Energy Electronics Conference (IFEEC).

[16]  Udaya K. Madawala,et al.  Cross coupling effects of poly-phase bi-directional inductive power transfer systems used for EV charging , 2015, 2015 IEEE 2nd International Future Energy Electronics Conference (IFEEC).

[17]  Grant A. Covic,et al.  A practical multiphase IPT system for AGV and roadway applications , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[18]  Mark Z. Jacobson,et al.  Review of solutions to global warming, air pollution, and energy security , 2009 .

[19]  Grant Covic,et al.  A Three-Phase Inductive Power Transfer System for Roadway-Powered Vehicles , 2007, IEEE Transactions on Industrial Electronics.