Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization — Part 1: Rules for the structure and drafting of standardizing documents.
This document is the part 5 of GB/T 38775 Electric vehicle wireless power transfer. The following parts of GB/T 38775 have been published:
——Part 1: General requirements;
——Part 2: Communication protocols between on-board charger and wireless power transfer device;
——Part 3: Specific requirements;
——Part 4: Limits and test methods of electromagnetic environment;
——Part 5: Electromagnetic compatibility requirements and test methods;
——Part 7: Interoperability requirements and testing — Vehicle side.
Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
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Introduction
GB/T 38775 aims to establish the requirements, test methods, interoperability and other requirements of electric vehicle wireless power transfer, and is planned to be composed of nine parts:
——Part 1: General requirements. This part specifies the overall requirements of the electric vehicle wireless power transfer.
——Part 2: Communication protocols between on-board charger and wireless power transfer device. This part specifies the communication protocol used to realize wireless charging control between communication service unit (CSU) and in-vehicle unit (IVU) of electric vehicle wireless power transfer, and the communication protocol for wireless charging control and management system (WCCMS) to participate in wireless charging control.
——Part 3: Specific requirements. This part specifies the unique safety requirements and test methods of the electric vehicle wireless power transfer.
——Part 4: Limits and test methods of electromagnetic environment. This part specifies the limits and test methods of electromagnetic environment inside and outside the electric vehicle when charging the electric vehicle wireless power transfer.
——Part 5: Electromagnetic compatibility requirements and test methods. This part specifies the electromagnetic compatibility requirements of the electric vehicle wireless power transfer and unifies the test methods and judgment criteria.
——Part 6: Interoperability requirements and testing — Ground side. This part specifies the on-board reference device for electric vehicle wireless power transfers, as well as the requirements and test methods that the primary tested components shall meet in order to satisfy the interoperability.
——Part 7: Interoperability requirements and testing — Vehicle side. This part specifies the off-board reference device for electric vehicle wireless power transfers, as well as the requirements and test methods that the secondary tested components shall meet in order to satisfy the interoperability.
——Part 8: Communication consistency testing — Ground side. This part specifies the test method for communication consistency of the off-board device under test.
——Part 9: Communication consistency testing — Vehicle side. This part specifies the test method for communication consistency of the on-board device under test.
Relying on electromagnetic field, the electric vehicle wireless power transfer transmits electric energy and actively emits electromagnetic energy outward, which possibly causes strong electromagnetic disturbance and potentially affects radio services and power supply network. Meanwhile, the electric vehicle wireless power transfer is likely to be interfered by various electromagnetic phenomena in the environment during operation, which will lead to charging failure and safety risks. The limits of electromagnetic disturbance, immunity requirements and corresponding test methods of the electric vehicle wireless power transfers are given in this document, which may promote the good control of the electromagnetic environment and ensure the function and safety of the wireless power transfer.
Electromagnetic compatibility requirements and test methods of electric vehicles under other operating status have been specified in relevant standards. See GB/T 18387 (150kHz ~30MHz) and GB 34660 (30MHz~1GHz) for radiated disturbance in driving status, GB 34660 for radiated immunity in driving status, and GB/T 40428 Electromagnetic compatibility requirements and test methods of conductive charging for electric vehicles for disturbance and immunity in conductive charging status.
Electric vehicle wireless power transfer —
Part 5: Electromagnetic compatibility requirements and test methods
1 Scope
This document specifies the general requirements, test plan, immunity requirements and emission requirements of the electromagnetic compatibility of the electric vehicle wireless power transfer.
This document is applicable to the wireless power transfer composed of the off-board supply device and on-board supply device, or the off-board supply device and electric vehicles, and it also applies to the off-board supply device, on-board supply device and electric vehicle (or "the vehicle" for short) in the wireless power transfer.
The radiated emission requirements specified in this document are not applicable to the intentional emission generated by the ITU-defined radio transmitter, nor to the spurious emission related to these intentional emissions.
Note: ITU - International Telecommunication Union.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4824-2019 Industrial, scientific and medical equipment — Radio-frequency disturbance characteristics — Limits and methods of measurement
GB 17625.1 Electromagnetic compatibility — Limits — Limits for harmonic current emissions (equipment input current ≤16A per phase)
GB/T 17625.2 Electromagnetic compatibility limits (EMC) — Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16A per phase and not subject to conditional connection
GB/T 17625.7 Electromagnetic compatibility — Limits — Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤75A and subject to conditional connection
GB/T 17625.8 Electromagnetic compatibility — Limits — Limits for harmonic currents produced by equipment connected to public low—Voltage systems with input current ＞16A and ≤75A per phase
GB/T 17626.2 Electromagnetic compatibility — Testing and measurement techniques — Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility — Testing and measurement techniques — Radiated, radio-frequency, electromagnetic field immunity test
GB/T 17626.4 Electromagnetic compatibility — Testing and measurement techniques — Electrical fast transient/burst immunity test
GB/T 17626.5 Electromagnetic compatibility — Testing and measurement techniques — Surge immunity test
GB/T 17626.6 Electromagnetic compatibility — Testing and measurement techniques — Immunity to conducted disturbances, induced by radio-frequency fields
GB/T 17626.8 Electromagnetic compatibility — Testing and measurement techniques — Power frequency magnetic field immunity test
GB/T 17626.11 Electromagnetic compatibility — Testing and measurement techniques — Voltage dips, short interruptions and voltage variations immunity tests
GB/T 17626.34 Electromagnetic compatibility — Testing and measurement techniques — Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16A per phase
GB/T 18655 Vehicles, boats and internal combustion engines — Radio disturbance characteristics — Limits and methods of measurement for the protection of on-board receivers
GB/T 19596 Terminology of electric vehicles
GB/T 19951 Road vehicles — Disturbances test methods for electrical/electronic component from electrostatic discharge
GB/T 29259 Road vehicle — Electromagnetic compatibility terminology
GB/T 33014.2 Road vehicles — Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy — Part 2: Absorber-lined shielded enclosure
GB/T 33014.4 Road vehicles — Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy — Part 4: Bulk current injection (BCI)
GB 34660 Road vehicles — Requirements and test methods of electromagnetic compatibility
GB/T 38775.1-2020 Electric vehicle wireless power transfer — Part 1:General requirements
IEC 61000-4-3 Electromagnetic compatibility (EMC) — Part 4-3: Testing and measurement techniques — Radiated, radio-frequency, electromagnetic field immunity test
CISPR 32: 2015 Electromagnetic compatibility of multimedia equipment — Emission requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions in GB/T 18655, GB/T 19596, GB/T 29259 and GB/T 38775.1-2020 and the following apply.
3.1
primary device
device which converts the electric energy into an alternating electromagnetic field and conduct directional emissions, as well as transmitting terminal of energy coupled with the secondary device
[SOURCE: GB/T 38775.1-2020, 3.1]
3.2
secondary device
device which receives alternating electromagnetic field and convert it into electric energy as well as receiving terminal of energy coupled with the primary device
[SOURCE: GB/T 38775.1-2020, 3.2]
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3.3
off-board supply device
generic term for off-board devices of electric vehicle wireless power transfer system
[SOURCE: GB/T 38775.1-2020, 3.7]
3.4
on-board supply device
generic term for on-board devices of electric vehicle wireless power transfer system
[SOURCE: GB/T 38775.1-2020, 3.8]
3.5
off-board power components
power conversion unit that converts electric energy of the power grid into electric energy required by the primary device
[SOURCE: GB/T 38775.1-2020, 3.5]
4 General requirements
4.1 Off-board supply device and on-board supply device
4.1.1 The wireless power transfer composed of the off-board supply device and on-board supply device shall meet the emission requirements in 7.1.
4.1.2 The off-board supply device shall meet the immunity in 6.1 and the emission requirements in 7.2.
4.1.3 The on-board supply device shall meet the immunity in 6.2 and the emission requirements in 7.3.
4.2 Off-board supply device and the vehicle
4.2.1 The wireless power transfer composed of the off-board supply device and the vehicle shall meet the emission requirements in 7.4.
4.2.2 The vehicle shall meet the immunity in 6.3 and the emission requirements in 7.5.
5 Test plan
5.1 General requirements
5.1.1 Before the test, a test plan shall be formulated, which at least includes the operation status, incentive function, monitoring function, judgment criteria and intentional emission.
5.1.2 During testing, the test plan shall be set according to the actual plan of the wireless power transfer, which may be adjusted according to the regulations of the manufacturer, unless otherwise specified.
5.1.3 Test conditions such as test layout, ground clearance, size offset and inclination angle, power supply and device parameter configuration and cable connection shall be recorded in detail in a test report.
5.1.4 During the radiated emission test, the ground clearance of the wireless power transfer shall be adjusted according to the actual installation plan of the off-board supply device, and the offset in X, Y and Z directions between the primary device and the secondary device as well as the inclination angles along the X, Y and Z axes, shall be simulated within the parameters of the product specification of the wireless power transfer, so as to determine the maximum emission conditions of the wireless power transfer.
Note: See 5.3 of GB/T 38775.1-2020 for the definitions of X axis, Y axis and Z axis.
5.1.5 The function and performance criteria of the device during and after the immunity test shall be recorded in detail in the test report.
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 Off-board supply device and on-board supply device
4.2 Off-board supply device and the vehicle
5 Test plan
5.1 General requirements
5.2 Test plan of components and devices
5.3 Vehicle-related test plan
6 Immunity
6.1 Immunity of off-board supply device
6.2 Immunity of on-board supply device
6.3 Radiation immunity of vehicle
7 Emission
7.1 Emission of off-board supply device and on-board supply device
7.2 Emission of off-board supply device
7.3 Emission of on-board supply device
7.4 Emissions of the off-board supply device and the vehicle
7.5 Vehicle emission
Annex A (Nominative) Requirements for AC power supply
Bibliography
