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Fundamental and Operation Frequencies for WPT Charging Stations

7. July 2015 20:02 by Christian in
The Europeans expect frequency ranges 20-40 kHz, 80-90 kHz, and 119-135 kHz to be reserved for prefe

The Europeans expect frequency ranges 20-40 kHz, 80-90 kHz, and 119-135 kHz to be reserved for preferred accommodation of fundamental and operation frequencies for “charging stations” for electric vehicles featuring wireless power transfer (WPT). The use of these frequency bands becomes possible via the license exempt conditions granted by Decision 2013/752/EU of the European Commission on harmonization of utilization of radio frequencies for Short Range Devices.

WPT systems and car manufacturers target for these frequency bands is compliance to:

  • Conducted Emissions C1 & C2 limits at LV a.c. mains power ports of power electronic equipment with WPT functionality as specified in IEC TS 62578 Ed. 2.0 (TC 22)
  • Radiated Emissions limits (magnetic field strength at 10 m distance) specified by Decision 2013/752/EU and EN 300 330-1&2 for WPT interface of the inductive power transfer system comprising the charging station and the electric vehicle.

Abbreviations:
CENELEC: European Committee for Electrotechnical Standardization, Brussels
CD: Committee Draft; ISO, IEC
CDV: Committee Draft for Vote; IEC
CAB: Conformity Assessment Board; IEC
CASCO: Committee on Conformity Assessment; ISO
DC: Document for Comment; EC
DIN: German Institute for Standardization, Berlin
DIS: Draft International Standard; ISO
DK: German Committee
DKE: German Commission for Electrical, Electronic & Information Technologies of DIN and VDE, Frankfurt am Main
DK-IEC: German Committee of IEC
ETSI - EN 300 330-1 PART 1: TECHNICAL CHARACTERISTICS AND TEST METHODS

  • ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM); 
  • SHORT RANGE DEVICES (SRD);
  • RADIO EQUIPMENT IN THE FREQUENCY RANGE 9 KHZ TO 25 MHZ AND INDUCTIVE LOOP SYSTEMS IN THE FREQUENCY RANGE 9 KHZ TO 30 MHZ;

GA: Gemeinschaftsausschuss (Joint Committee); DIN
IEC: International Electrotechnical Commission, Geneva
IEEE: Institute of Electrical and Electronic Engineers, New York
ISO: International Organization for Standardization, Geneva
JTC: Joint Technical Committee; ISO, IEC
TC: Technical Committee; ISO, IEC, CEN, CENELEC, ETSI
TR: Technical Report; ISO, IEC, CEN, CENELEC
TS: Technical Specification; ISO, IEC, CEN, CENELEC, ETSI
VDE: Association for Electrical, Electronic & Information Technologies, Frankfurt am Main
WG: Working Group; ISO, IEC, CEN, CENELEC

2013/752/EU: Commission Implementing Decision of 11 December 2013 amending Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range devices and repealing Decision 2005/928/EC (notified under document C(2013) 8776) Text with EEA relevance

DKE / K 353 is responsible for the development of standards for the charging of electric vehicles.  These include interface descriptions and requirements for stations for the AC-charging, DC-charging, wireless charging and battery replacement.

   Working Groups:
   DKE / AK 353.0.6    EMC in the energy supply of electric vehicles
   DKE / AK 353.0.7    Battery change systems
   DKE / AK 353.0.8    User authorization for charging infrastructure
   DKE / GAK 353.0.9   Energy supply of light electric vehicles
   DKE / AK 353.0.6    EMC in the energy supply of electric vehicles
   DKE / GAK 353.0.1   Contactless charging of electric vehicles
   DKE / GAK 353.0.2   DC charging of electric vehicles
   DKE / AK 353.0.3    Communication interface from the vehicle to the power grid (V2G CI)
   DKE / GAK 353.0.4   AC charging of electric vehicles

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