Self-decoupled dual pick-up coils with large lateral tolerance for roadway powered electric vehicles

Self-decoupled dual pick-up coils for roadway powered electric vehicle (RPEV) with large lateral tolerance and low EMF for pedestrians are proposed. The accurate equivalent circuits and mathematical models for the dual pick-up coils are completely developed to decouple the two adjacent pick-up coils for the both cases with and without core plates. The proposed models are verified by simulations and experiments. It is found that the adjacent pick-up coils can be decoupled regardless of the existence of core plates by overlapping the pick-up coils and the overlapping is nearly same for the both cases with and without core plates.

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

[2]  S. Einav,et al.  Calculation of the mutual induction between coplanar circular surface coils in magnetic resonance imaging , 1992, IEEE Transactions on Biomedical Engineering.

[3]  S. Y. Choi,et al.  Asymmetric Coil Sets for Wireless Stationary EV Chargers With Large Lateral Tolerance by Dominant Field Analysis , 2014, IEEE Transactions on Power Electronics.

[4]  K. Jokela,et al.  ICNIRP Guidelines GUIDELINES FOR LIMITING EXPOSURE TO TIME-VARYING , 1998 .

[5]  Gyu-Hyeong Cho,et al.  New approach to analysis of quantum rectifier-inverter , 1989 .

[6]  Chun T. Rim,et al.  Generalized Active EMF Cancel Methods for Wireless Electric Vehicles , 2014, IEEE Transactions on Power Electronics.

[7]  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.

[8]  Gyu-Hyeong Cho,et al.  Frequency-Domain Circuit Model and Analysis of Coupled Magnetic Resonance Systems , 2013 .

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

[10]  J. Huh,et al.  Finite-Width Magnetic Mirror Models of Mono and Dual Coils for Wireless Electric Vehicles , 2013, IEEE Transactions on Power Electronics.

[11]  J. G. Bolger.  Urban electric transportation systems: the role of magnetic power transfer , 1994, Proceedings of WESCON '94.

[12]  N. P. Suh,et al.  Design of On-Line Electric Vehicle (OLEV) , 2011 .

[13]  Sungwoo Lee,et al.  High performance inductive power transfer system with narrow rail width for On-Line Electric Vehicles , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[14]  Gyu-Hyeong Cho,et al.  Active EMF cancellation method for I-type pickup of On-Line Electric Vehicles , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[15]  C. T. Rim,et al.  Unified General Phasor Transformation for AC Converters , 2011, IEEE Transactions on Power Electronics.

[16]  C. T. Rim,et al.  Dynamics Characterization of the Inductive Power Transfer System for Online Electric Vehicles by Laplace Phasor Transform , 2013, IEEE Transactions on Power Electronics.

[17]  D. Kacprzak,et al.  A bipolar receiver pad in a lumped IPT system for electric vehicle charging applications , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

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

[19]  Omer C. Onar,et al.  A novel wireless power transfer for in-motion EV/PHEV charging , 2013, 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[20]  Grant A. Covic,et al.  A bipolar primary pad topology for EV stationary charging and highway power by inductive coupling , 2011, 2011 IEEE Energy Conversion Congress and Exposition.