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IEC 61980-1.pdf
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CONTENTS
CONTENTS ............................................................................................................................ 2
FOREWORD ........................................................................................................................... 7
INTRODUCTION ..................................................................................................................... 9
1
Scope ............................................................................................................................ 10
2 Normative references .................................................................................................... 10
3
4
Terms and definitions .................................................................................................... 14
Abbreviations ................................................................................................................ 16
5 General ......................................................................................................................... 17
6 Classification ................................................................................................................. 17
6.1
6.2
6.3
6.4
6.5
General ................................................................................................................. 17
Transfer technologies ........................................................................................... 17
Transfer power classes ......................................................................................... 18
Environmental conditions ...................................................................................... 18
Installation ............................................................................................................ 18
7
Interoperability .............................................................................................................. 18
8 General system requirements ........................................................................................ 19
8.1
8.2
8.3
General ................................................................................................................. 19
Efficiency .............................................................................................................. 20
Measurement convention ...................................................................................... 21
8.3.1
8.3.2
8.3.3
8.3.4
8.3.5
8.3.6
8.3.7
8.3.8
8.3.9
General ......................................................................................................... 21
Orientation ..................................................................................................... 21
Measurement convention of the parking space .............................................. 21
Measurement convention of offset ................................................................. 22
Measurement convention of the primary device ............................................. 23
Distance between the primary and secondary device (mechanical air
gap) ............................................................................................................... 23
Primary device mounting ............................................................................... 24
In-ground-mounting ....................................................................................... 24
On-ground-mounting ...................................................................................... 24
8.4
Primary and secondary device construction .......................................................... 25
9 Communication .............................................................................................................. 25
9.1
9.2
Command and control communication ................................................................... 25
High level communication ..................................................................................... 25
10 Protection against electric shock ................................................................................... 26
10.1 General requirements ........................................................................................... 26
10.2 Protection against direct contact ........................................................................... 26
10.2.1
Degrees of protection against access to hazardous parts .............................. 26
10.2.2
IP degrees for the enclosures ........................................................................ 26
10.2.3
IP degrees for primary device ........................................................................ 26
10.3 Stored energy – discharge of capacitors ............................................................... 26
10.4 Protection against electrical shock ........................................................................ 27
10.5 Protective conductor dimensions ........................................................................... 27
10.6 Supplementary measures ...................................................................................... 27
10.6.1
Additional protection ...................................................................................... 27
10.6.2
Manual/automatic reset ................................................................................. 28
10.7 Telecommunication network .................................................................................. 28
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11 Specific requirements for WPT systems ......................................................................... 28
11.1 General ................................................................................................................. 28
11.2
Leakage – touch current ....................................................................................... 28
11.3
Insulation resistance ............................................................................................. 29
11.4 Dielectric withstand characteristic ......................................................................... 29
11.4.1
Dielectric withstand voltage ........................................................................... 29
11.4.2
Impulse dielectric withstand (1,2/50 µs) ......................................................... 29
11.5 Overload protection and short circuit withstand ..................................................... 30
11.5.1
General ......................................................................................................... 30
11.5.2
Earthing electrode and continuity test ............................................................ 30
11.5.3
Earthing path test .......................................................................................... 30
11.5.4
Short circuit withstand strength ...................................................................... 30
11.6 Temperature rise and protection against thermal incidents .................................... 30
11.6.1
General ......................................................................................................... 30
11.6.2
Permissible surface temperature of accessible parts of the WPT system ....... 31
11.6.3
Temperature limits for materials .................................................................... 32
11.6.4
Protection against burns from heating of foreign objects ................................ 33
11.7 Heat, fire and tracking ........................................................................................... 34
11.8 Protection against mechanical incident ................................................................. 34
11.8.1
Incidents induced by sharp edge.................................................................... 34
11.8.2
Incidents induced by steps from flat ground ................................................... 34
11.9 Areas of protection ................................................................................................ 34
11.10 Protection from electro-magnetic field ................................................................... 35
11.11 Operational safety ................................................................................................. 35
11.12 Emergency service disconnect (optional) .............................................................. 35
12 Power cable assembly requirements .............................................................................. 35
13 Constructional requirements .......................................................................................... 36
13.1 General ................................................................................................................. 36
13.2 Breaking capacity of switching devices ................................................................. 36
13.2.1
General ......................................................................................................... 36
13.2.2
Switch and switch-disconnector ..................................................................... 36
13.2.3
13.2.4
Contactor ....................................................................................................... 36
Circuit-breaker ............................................................................................... 36
13.2.5
Relays ........................................................................................................... 36
13.3 Clearance and creepage distances ....................................................................... 36
13.4 Protection measures ............................................................................................. 37
14 Strength of materials and parts ...................................................................................... 37
14.1 General ................................................................................................................. 37
14.2 Stability/Mechanical impact ................................................................................... 37
14.2.1
Locations with restricted access .................................................................... 37
14.2.2
Locations with non-restricted access ............................................................. 38
14.2.3
14.2.4
Vehicle drive-over .......................................................................................... 38
Lateral force by thrust power ......................................................................... 38
14.3 Mechanical load .................................................................................................... 38
14.3.1
General ......................................................................................................... 38
14.3.2
Static load ..................................................................................................... 38
14.3.3
14.3.4
Shock load .................................................................................................... 39
Torsional stress ............................................................................................. 39
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14.3.5
Strength of doors ........................................................................................... 39
14.3.6
Mechanical shock impacts induced by sharp edged objects ........................... 39
14.4 Strength of materials and parts ............................................................................. 39
14.4.1
Protection against corrosion .......................................................................... 39
14.4.2
Test criteria ................................................................................................... 39
14.5 Environmental conditions ...................................................................................... 40
14.6 Properties of insulating materials .......................................................................... 40
14.6.1
14.6.2
Verification of thermal stability of enclosures ................................................. 40
Resistance to fire (Glow wire) ........................................................................ 40
14.6.3
Ball pressure test ........................................................................................... 40
14.6.4
Resistance to tracking ................................................................................... 40
14.6.5
Resistance to ultra-violet radiation ................................................................. 41
14.7 Static strength and stability ................................................................................... 41
14.8 Vibration ............................................................................................................... 41
15 Service and test conditions ............................................................................................ 41
15.1 General ................................................................................................................. 41
15.2 Environmental test ................................................................................................ 41
15.2.1
Ambient air temperature ................................................................................ 41
15.2.2
Ambient humidity ........................................................................................... 42
15.2.3
Ambient air pressure ..................................................................................... 42
15.2.4
Altitude .......................................................................................................... 42
15.2.5
Pollution degree ............................................................................................ 43
15.2.6
15.2.7
Dry heat ........................................................................................................ 43
Cold test ........................................................................................................ 43
15.3 Special service conditions ..................................................................................... 43
15.4 Conditions during transport, storage and installation ............................................. 43
15.5 Outdoor exposure ................................................................................................. 44
15.5.1
Cold test for extreme cold climates ................................................................ 44
15.5.2
Heat test under solar radiation ....................................................................... 44
15.6 Damp and salt mist test for marine and coastal environments ............................... 44
15.7 Condensation within the assembly ........................................................................ 44
15.8 Vibration and shock .............................................................................................. 44
15.9 Safety specifications ............................................................................................. 44
16 Electromagnetic Compatibility (EMC) ............................................................................. 44
16.1
Immunity requirements .......................................................................................... 44
16.2 Disturbance requirement ....................................................................................... 46
16.2.1
Load and operating conditions ....................................................................... 46
16.2.2
Disturbance limits .......................................................................................... 47
17 Marking and instructions ................................................................................................ 50
17.1 General ................................................................................................................. 50
17.2 Marking of EV supply equipment ........................................................................... 51
17.3
Legibility ............................................................................................................... 51
17.4 Connection instructions ......................................................................................... 51
Annex A (informative) Use cases ......................................................................................... 52
A.1
A.2
General ................................................................................................................. 52
Use case descriptions ........................................................................................... 53
A.2.1
A.2.2
UC Select "charging spot" .............................................................................. 53
UC Compatibility Check ................................................................................. 54
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A.2.3
A.2.4
A.2.5
A.2.6
A.2.7
A.2.8
UC Fine Positioning ....................................................................................... 55
UC Pairing Confirmation ................................................................................ 56
UC Start Power Transfer ................................................................................ 57
UC Perform Power Transfer ........................................................................... 59
UC Safety Monitoring and Diagnostics (see Table A.7) ................................. 61
UC Stop Power transfer ................................................................................. 61
Annex B (informative) EMC tables, EV connected to an WPT system ................................... 63
B.1
General ................................................................................................................. 63
B.2 WPT equipment immunity requirement (informative) ............................................. 63
B.3
Radio frequency (RF) disturbances ....................................................................... 63
B.4 WPT system with EV included (radiated disturbances in the range 30 MHz to
1 000 MHz) ........................................................................................................... 64
Annex C (informative) EMF, protection from electromagnetic field ....................................... 66
C.1
C.2
C.3
Protection from electromagnetic field .................................................................... 66
Assessment of electronic and electrical equipment ............................................... 66
EMF measurement procedure ............................................................................... 66
C.4 Measurement points .............................................................................................. 68
C.4.1
C.4.2
C.4.3
Area 3 measurement points of nominal position ............................................. 68
Area 3 measurement points of offset positions ............................................... 69
Area 4 measurement points ........................................................................... 69
Bibliography .......................................................................................................................... 70
Figure 1 – Installation ........................................................................................................... 18
Figure 2 – Wireless Power Transfer system .......................................................................... 20
Figure 3 – Position of axes relative to orientation .................................................................. 21
Figure 4 – Position of the primary device .............................................................................. 22
Figure 5 – X and Y maximum offset ...................................................................................... 23
Figure 6 – In-ground-mounting .............................................................................................. 24
Figure 7 – On-ground-mounting ............................................................................................ 25
Figure 8 – Qualitative example of material temperature ........................................................ 31
Figure 9 – Example for areas of protection, for ground mounted systems .............................. 35
Figure A.1 – Use cases particularly for wireless power transfer ............................................. 52
Figure A.2 – Use cases from ISO/IEC 15118-1 reusable for WPT systems ............................ 53
Figure A.3 – Activity diagram for UC Select "Charging Spot" ................................................. 54
Figure A.4 – Activity diagram for UC Compatibility Check ..................................................... 55
Figure A.5 – Activity diagram for UC Fine Positioning ........................................................... 56
Figure A.6 – Activity diagram fur UC Pairing Confirmation .................................................... 57
Figure A.7 – Activity diagram for UC Start Power Transfer .................................................... 59
Figure A.8 – Activity diagram for UC Perform Power Transfer ............................................... 60
Figure A.9 – Activity diagram for UC Stop Power Transfer .................................................... 62
Figure B.1 – EV model for the radiated emission measurement (top view) ............................ 64
Figure B.2 – EV model for radiated emission measurements (side view) ............................... 65
Figure C.1 – Top view ........................................................................................................... 68
Figure C.2 – Front view ......................................................................................................... 68
Figure C.3 – Seats position ................................................................................................... 69
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Figure C.4 – Measurement points of seats ............................................................................ 69
Table 1 – Transfer technologies ............................................................................................ 17
Table 2 – Position of primary device ..................................................................................... 22
Table 3 – Offset .................................................................................................................... 23
Table 4 – Primary device ...................................................................................................... 23
Table 5 – Mechanical air gap ................................................................................................ 24
Table 6 – Touch currents ...................................................................................................... 28
Table 7 – Values of temperature rise in normal use .............................................................. 33
Table 8 – WPT equipment immunity requirement – Environment other than residential ........ 45
Table 9 – WPT equipment immunity requirement – residential environment .......................... 46
Table 10 – Low frequency disturbances ................................................................................ 48
Table 11 – Radio frequency (RF) disturbances ..................................................................... 49
Table 12 – Limits of the magnetic field strength for WPT system ........................................... 50
Table A.1 – UC Select "charging spot" .................................................................................. 53
Table A.2 – UC Compatibility Check ..................................................................................... 55
Table A.3 – UC Fine Positioning ........................................................................................... 56
Table A.4 – UC Pairing Confirmation .................................................................................... 57
Table A.5 – UC Start Power Transfer .................................................................................... 58
Table A.6 – UC Perform Power Transfer ............................................................................... 60
Table A.7 – UC Safety Monitoring and Diagnostics .............................................................. 61
Table A.8 – UC Stop Power transfer ..................................................................................... 61
Table B.1 – Environment other than residential environment with EV .................................... 63
Table B.2 – Residential environment with EV ........................................................................ 63
Table B.3 – Radio frequency (RF) disturbances – WPT system with EV ................................ 63
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC VEHICLE WIRELESS
POWER TRANSFER (WPT) SYSTEMS –
Part 1: General requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61980-1 has been prepared by Technical Committee 69: Electric
road vehicles and electric industrial trucks.
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The text of this standard is based on the following documents:
FDIS
Report on voting
69/370/FDIS
69/380/RVD
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263
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
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This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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WD 2nd Ed. 61980-1:20xx © IEC 20xx
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This part is to be used in conjunction with the appropriate part of IEC 61980 series.
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NOTE The following print types are used:
–
–
–
requirements: in roman type;
test specifications: in italic type;
notes: in small roman type.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
•
reconfirmed,
• withdrawn,
•
replaced by a revised edition, or
• amended.
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A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that
it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
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INTRODUCTION
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The IEC 61980 series is published in separate parts according to the following structure:
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Part 1 covers general requirements for electric road vehicle (EV) wireless power transfer
(WPT) systems including general background and definitions (e.g. efficiency, electrical safety,
EMC, EMF).
Future Part 2 will cover specific requirements for communication between electric road vehicle
(EV) and wireless power
including general background and
definitions.
transfer (WPT) systems
Future Part 3 will cover specific requirements for electric road vehicle (EV) magnetic field
wireless power transfer (MF-WPT) systems including general background and definitions (e.g.
efficiency, electrical safety, EMC, EMF).
The requirements described in Part 1 are general. The technical requirements for the various
wireless power transfer (WPT) technologies are very different, they will be treated in
technology specific parts of the 61980 series. A list of possible WPT technologies can be
seen in 6.2. The requirements for magnetic field-wireless power transfer systems (MF-WPT)
will be described in future Part 3. Further parts of this series will describe other technologies
such as power transfer via electric field wireless power transfer systems (EF-WPT) or
electromagnetic field-WPT systems also named microwave-WPT systems (MW-WPT).
Reference to "technology specific parts" always refer to the technology specific future Part 3
and further technology specific parts of this series. The structure of the "technology specific
parts" will follow the structure of Part 1.
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Electric road vehicle (EV) will be covered by ISO 193631.
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___________
1 Under consideration.
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