IEC PAS 61980-4:2025
(Main)Electric vehicle wireless power transfer (WPT) systems - Part 4: Interoperability and safety of high-power wireless power transfer (H-WPT) for electric vehicles
Electric vehicle wireless power transfer (WPT) systems - Part 4: Interoperability and safety of high-power wireless power transfer (H-WPT) for electric vehicles
IEC PAS 61980-4:2025 applies to the off-board supply equipment for high-power wireless power transfer (H-WPT) via magnetic field (MF-WPT) to electric road vehicles for purposes of supplying electric energy to the RESS (rechargeable energy storage system) or other on-board electrical systems, or both.
The MF-WPT system operates at standard supply voltage ratings per IEC 60038 up to 1 000 V AC and up to 1 500 V DC from the supply network. The power transfer takes place while the electric vehicle (EV) is stationary.
The aspects covered in this document include
– the characteristics and operating conditions,
– specific power transfer requirements for the off-board side of magnetic field high-power wireless power transfer systems for electric road vehicles,
– the required level of electrical safety,
– requirements for basic communication for safety and process matters if required by a MF WPT system,
– requirements for positioning to assure efficient and safe MF-WPT power transfer, and
– specific EMC requirements for MF-WPT systems
This document does not apply to
– safety aspects related to maintenance, and
– trolley buses, rail vehicles and vehicles designed primarily for use off-road
General Information
Standards Content (Sample)
IEC PAS 61980-4 ®
Edition 1.0 2025-11
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle wireless power transfer (WPT) systems -
Part 4: Interoperability and safety of high-power wireless power transfer (H-WPT)
for electric vehicles
ICS 43.120 ISBN 978-2-8327-0851-4
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CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Abbreviated terms . 9
5 General . 9
6 Classification . 10
6.1 Compatibility classes . 10
6.2 Classification with power capacity in high-power wireless power transfer for
electric vehicles . 10
6.3 Installation . 10
7 General supply device requirements . 12
7.1 General architecture . 12
7.2 Power transfer requirements . 13
7.2.1 Frequency requirements . 13
7.2.2 Input voltage and kVA levels . 14
7.2.3 Output voltage levels . 14
7.2.4 Output power levels . 14
7.2.5 Dynamic performance . 14
7.3 Power transfer efficiency . 15
7.4 Alignment . 15
7.4.1 Alignment tolerance area for supply device . 15
7.4.2 Secondary device ground clearance range for supply device . 15
8 Communication . 16
9 Power transfer interoperability . 16
10 Protection against electric shock . 16
11 Specific requirements for WPT systems . 16
12 Power cable requirements . 16
13 Constructional requirements . 16
14 Strength of materials and parts . 16
15 Service and test conditions . 17
16 Electromagnetic compatibility (EMC) . 17
17 Marking and instructions . 19
Annex A (informative) DDQ reference EVPCs for MF-MPT4/5 . 20
A.1 DDQ reference EVPCs for MF-WPT4 . 20
A.1.1 General . 20
A.1.2 MF-WPT4/Z1 reference EVPC . 20
A.1.3 MF-WPT4/Z2 reference EVPC . 22
A.1.4 MF-WPT4/Z3 reference EVPC . 25
A.2 DDQ reference EVPCs for MF-WPT5 . 28
A.2.1 General . 28
A.2.2 MF-WPT5/Z1 reference EVPC . 29
A.2.3 MF-WPT5/Z2 reference EVPC . 31
A.2.4 MF-WPT5/Z3 reference EVPC . 34
Annex B (informative) Multi-phase coil reference EVPCs for MF-WPT4/5 . 38
B.1 Multi-phase coil reference EVPCs for MF-WPT4 . 38
B.1.1 General . 38
B.1.2 MF-WPT4/Z1 reference EVPC . 38
B.1.3 MF-WPT4/Z2 reference EVPC . 40
B.1.4 MF-WPT4/Z3 reference EVPC . 43
B.2 Multi-phase coil reference EVPCs for MF-WPT5 . 45
B.2.1 General . 45
B.2.2 MF-WPT5/Z1 reference EVPC . 46
B.2.3 MF-WPT5/Z2 reference EVPC . 48
B.2.4 MF-WPT5/Z3 reference EVPC . 51
Annex C (informative) Reference WPT system for EVPCs with a rated output power
level MF-WPT5 . 54
C.1 General . 54
C.2 Mechanical design of the secondary device, Z2 . 54
C.3 Electrical design of the reference EVPC, Z2. 54
C.4 Mechanical design of the secondary device, Z3 . 55
C.5 Electrical design of the reference EVPC, Z3. 56
C.6 Coupling and inductance information . 56
Annex D (informative) Flat wire coil reference EVPCs for MF-WPT4 . 57
D.1 General . 57
D.2 MF-WPT4 reference EVPC . 57
D.2.1 General . 57
D.2.2 Mechanical design of the secondary device . 58
D.2.3 Electrical design of the reference VPC . 59
D.2.4 Coupling factor and inductance information . 60
Bibliography . 63
Figure 1 – Surface mounting . 11
Figure 2 – Flush mounting . 11
Figure 3 – Embedded mounting . 12
Figure 4 – Example of M-WPT system . 13
Figure 5 – Example of test bench setup – View from the above . 17
Figure 6 – Example of vehicle test setup . 18
Figure 7 – Example of measurement in-situ . 19
Figure 8 – In-situ measurement procedure . 19
Figure A.1 – General layout of the MF-WPT4/Z1 reference secondary device . 20
Figure A.2 – Mechanical dimensions of the MF-WPT4/Z1 reference secondary device . 21
Figure A.3 – Schematic of the EV power electronics for the MF-WPT4 reference EVPC . 22
Figure A.4 – General layout of the MF-WPT4/Z2 reference secondary device . 23
Figure A.5 – Mechanical dimensions of the MF-WPT4/Z2 reference secondary device . 24
Figure A.6 – Schematic of the EV power electronics for the MF-WPT4 reference EVPC . 25
Figure A.7 – General layout of the MF-WPT4/Z3 reference secondary device . 26
Figure A.8 – Mechanical dimensions of the MF-WPT4/Z3 reference secondary device . 27
Figure A.9 – Schematic of the EV power electronics for the MF-WPT4 reference EVPC . 28
Figure A.10 – General layout of the MF-WPT5/Z1 reference secondary device . 29
Figure A.11 – Mechanical dimensions of the MF-WPT5/Z1 reference secondary device . 30
Figure A.12 – Schematic of the EV power electronics for the MF-WPT5 reference
EVPC . 31
Figure A.13 – General layout of the MF-WPT5/Z2 reference secondary device . 32
Figure A.14 – General Layout of the MF-WPT5/Z2 reference secondary device . 33
Figure A.15 – Schematic of the EV power electronics for the MF-WPT5 reference
EVPC . 34
Figure A.16 – General layout of the MF-WPT5/Z3 reference secondary device . 35
Figure A.17 – Mechanical dimensions of the MF-WPT5/Z3 reference secondary device . 36
Figure A.18 – Schematic of the EV power electronics for the MF-WPT5 reference
EVPC . 37
Figure B.1 – General layout of the MF-WPT4/Z1 reference secondary device . 38
Figure B.2 – Mechanical dimensions of the MF-WPT4/Z1 reference secondary device . 39
Figure B.3 – Schematic of the EV power electronics for the MF-WPT4/Z1 reference
EVPC .
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