A study on Protection Coordination Method for Electric Vehicle Charging Facility based on the Wireless Power Transmission

This paper deals with the power supply facility providing wireless power transmission for a type of electric vehicles called the on-line electric vehicle(OLEV) and proposes optimal protection coordination methods which analyze the faultsin the 60Hz and 20kHz bands using PSCAD/EMTDC, which is the typical commercial software for the distribution system. The simulation results show that the proposed methods can reduce the fault current by introducing an NGR (Neutral Ground Resistor) in the 60Hz band and prevent the malfunctioning of the protection device by installing a CT in the neutral wire in the 20kHz band when a ground fault occurs.

[1]  P.P. Barker,et al.  Determining the impact of distributed generation on power systems. I. Radial distribution systems , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[2]  Taehyun Jeon,et al.  Effect of Interference from DC Power Supply on Power Line Communication Channel , 2014 .

[3]  Leon M. Tolbert,et al.  Vehicle-to-Grid Reactive Power Operation Using Plug-In Electric Vehicle Bidirectional Offboard Charger , 2014, IEEE Transactions on Industrial Electronics.

[4]  Il-Song Kim,et al.  Design of Auxiliary Rescue Inverter System , 2016 .

[5]  Conversion and delivery of electrical energy in the 21st century , 2008, IEEE Power & Energy Society General Meeting.

[6]  A. Girgis,et al.  Effect of distributed generation on protective device coordination in distribution system , 2001, LESCOPE 01. 2001 Large Engineering Systems Conference on Power Engineering. Conference Proceedings. Theme: Powering Beyond 2001 (Cat. No.01ex490).

[7]  Dae-Seok Rho,et al.  Evaluation Algorithm for Coordination Protection Between Recloser and Distributed Generation Relay , 2011 .

[8]  Chan-Woo Moon,et al.  A Study on Mobile Robot Auto Recharging System Based on Wireless Power Transmission and Visual Information , 2011 .

[9]  Young Kee Ryu.  Wireless Power Transmission Technology for Implantable Telemetry Device based on Multiple Transmit Coils , 2015 .

[10]  Jae-Hwan Park.  Inductance and Electrical Properties of Wireless Power Transmission Coil , 2016 .