IEC PAS 61980-6:2025

IEC PAS 61980-6 ®
Edition 1.0 2025-03
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle wireless power transfer (WPT) systems –
Part 6: Specific requirements for magnetic field dynamic power transfer (MF-D-
WPT) system communication and activities

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IEC PAS 61980-6 ®
Edition 1.0 2025-03
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle wireless power transfer (WPT) systems –

Part 6: Specific requirements for magnetic field dynamic power transfer (MF-D-

WPT) system communication and activities

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120; 29.240.99 ISBN 978-2-8327-0323-6

– 2 – IEC PAS 61980-6:2025 © IEC 2025
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Abbreviated terms . 12
5 General system structure and interoperability concept . 12
5.1 System structure . 12
5.2 Interoperability concept . 13
6 General communication requirements . 14
6.1 General . 14
6.2 Communication and signalling for power management . 14
6.2.1 General . 14
6.2.2 Bidirectional wireless communication . 14
6.2.3 Unidirectional wireless signalling (P2PS) . 15
6.2.4 Bidirectional wireless signalling (P2PS) . 15
7 Communication procedure during an MF-D-WPT session . 16
7.1 General . 16
7.2 Activities . 17
7.2.1 Preparation (supply device) . 17
7.2.2 Preparation (EV device) . 17
7.2.3 Communication setup/Request D-WPT service . 17
7.2.4 Compatibility check/Service authentication . 18
7.2.5 Pairing . 19
7.2.6 Alignment check (lateral direction) . 19
7.2.7 Magnetic coupling check . 19
7.2.8 Power transfer . 19
7.2.9 Inter-inverter segment switching . 21
7.2.10 Stand-by . 21
7.2.11 Power transfer terminate . 22
7.2.12 Terminate D-WPT service session . 23
7.2.13 Parameters definition between EV device and supply device . 23
7.2.14 Safety monitoring and diagnostics . 24
7.2.15 Wake-up after power outage . 24
7.3 Exception handling. 24
7.3.1 General . 24
7.3.2 Exception descriptions . 25
7.3.3 Supply device exceptions . 27
7.3.4 EV device exceptions . 27
Annex A (informative) System architecture. 28
A.1 General . 28
A.2 One supply power electronics drives multiple primary devices . 28
A.2.1 Parallel connection of primary devices . 28
A.2.2 P2PS with magnetic coupling check . 29
A.3 DC (direct current) power distribution . 30

A.4 Corresponding states to each step in passing D-WPT charging area
(included sections and segments) . 31
Annex B (informative) P2PS sensors . 33
B.1 General . 33
B.2 Methods . 33
B.3 P2PS paring sensors . 34
Annex C (informative) Communication of dynamic wireless power transfer for electric
vehicles . 35
C.1 General overview . 35
C.2 Message sequence in the communication for D-WPT . 36
C.3 State transitions in the communication for D-WPT . 37
C.3.1 State transition diagram at D-SECC (in supply device) . 37
C.3.2 State transition diagram at D-EVCC (in EV device) . 38
C.3.3 State transition in D-SECC (supply device) . 39
C.3.4 State transition in D-EVCC (EV device) . 40
Annex D (informative) Communication of dynamic wireless power transfer for electric
vehicles . 41
D.1 General overview . 41
D.2 Communication architecture . 41
D.2.1 Overview . 41
D.2.2 Infrastructure operation strategy . 43
D.3 Detailed communication description . 43
D.3.1 Bidirectional communication: vehicle <-> cloud . 43
D.3.2 Bidirectional communication: management unit <-> cloud . 43
D.3.3 Unidirectional communication: vehicle -> management unit . 44
Annex E (informative) Segment switching based on vehicle detection using
bidirectional P2PS . 45
E.1 General . 45
E.2 Vehicle detection . 46
E.2.1 General . 46
E.2.2 Coupling/decoupling . 47
E.3 Segment switching . 48
E.3.1 General . 48
E.3.2 Group segment switching. 48
E.3.3 Group segment switching with superposition. 49
E.3.4 Calculating the speed of a vehicle . 50
Annex F (informative) Use cases . 51
F.1 General . 51
F.2 Use case descriptions . 51
Annex G (informative) State diagrams of MF-D-WPT process . 55
G.1 General . 55
G.2 Supply device state definitions . 55
G.2.1 Supply device state diagram . 55
G.2.2 System On (DWPT_S_ON) . 56
G.2.3 Session initiated (DWPT_S_SI) . 56
G.2.4 Idle (DWPT_S_IDLE) . 56
G.2.5 Power transfer active (DWPT_S_PTA) . 56
G.2.6 Power transfer (DWPT_S_PT) . 56
G.2.7 Inter-inverter segment switching (DWPT_S_CH) . 56

– 4 – IEC PAS 61980-6:2025 © IEC 2025
G.2.8 System off (DWPT_S_OFF) . 57
G.2.9 Service terminated occupied (DWPT_S_STO) . 57
G.2.10 StandBy (DWPT_S_STBY) . 57
G.2.11 Sleep (DWPT_S_SLP) .
...