GB/T 40428-2021 PDF English
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Electromagnetic compatibility requirements and test methods of conductive charging for electric vehicles
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GB/T 40428-2021: Electromagnetic compatibility requirements and test methods of conductive charging for electric vehicles
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT40428-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 09
Electromagnetic compatibility requirements and test
methods of conductive charging for electric vehicles
Issued on. AUGUST 20, 2021
Implemented on. MARCH 01, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 7
4 Requirements... 8
4.1 General requirements... 8
4.2 Broadband electromagnetic radiation emission characteristics... 8
4.3 Harmonic emission characteristics along the AC power line... 10
4.4 Voltage variation, voltage fluctuation, flicker emission characteristics along the
AC power line... 12
4.5 Radio frequency conducted emission characteristics along the AC power line
... 12
4.6 Immunity to electromagnetic radiation... 13
4.7 Immunity of electrical fast transient pulse groups along AC power lines... 14
4.8 Surge immunity along AC power lines... 14
5 Test method... 15
5.1 General provisions... 15
5.2 Electromagnetic radiation emission... 17
5.3 Harmonic emission along AC power line... 24
5.4 Voltage changes, voltage fluctuations, flicker emission along the AC power line
... 26
5.5 Conducted radio frequency emissions along AC power lines... 28
5.6 Immunity to electromagnetic radiation... 33
5.7 Immunity of electrical fast transient pulse groups along AC power lines... 38
5.8 Surge immunity along AC power lines... 39
Appendix A (Normative) Specific conditions for harmonic currents... 42
Appendix B (Normative) Power and equipment requirements... 43
Appendix C (Informative) Vehicle discharge operation method... 45
References... 46
1 Scope
This document specifies the electromagnetic compatibility requirements and
test methods, for conductive charging of electric vehicles.
This document applies to electric vehicles (or vehicles for short), that can be
externally charged, as well as to systems, which are composed of vehicles and
power supply equipment.
This document applies to the electric vehicles, whose vehicle sockets
(connection method B and connection method C) comply with GB/T 20234.2
and/or GB/T 20234.3, AND power supply plugs (connection method A) comply
with GB/T 1002 and/or GB/T 20234.2.
This document does not apply to electric buses, which have top-contact
charging systems.
2 Normative references
The contents of the following documents constitute the indispensable clauses
of this document through normative references in the text. For the dated
documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this standard.
GB/T 1002 Single phase plugs and socket-outlets for household and similar
purposes - Types, basic parameters and dimensions
GB/T 6113.102 Specification for radio disturbance and immunity measuring
apparatus and methods - Part 1-2.Radio disturbance and immunity
measuring apparatus - Coupling devices for conducted disturbance
measurements
GB/T 6113.201 Specification for radio disturbance and immunity measuring
apparatus and methods - Part 2-1.Methods of measurement of disturbances
and immunity - Conducted disturbance measurements
GB 17625.1 Electromagnetic compatibility - Limits - Limits for harmonic
current emissions (equipment input current ≤ 16 A per phase)
GB/T 17625.2 Electromagnetic compatibility (EMC) - Limits - Limitation of
voltage changes, voltage fluctuations and flicker in public low-voltage supply
systems, for equipment with rated current ≤ 16 A per phase and subject to
unconditional 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 ≤ 75 A and subject to conditional
connection
3 Terms and definitions
The terms and definitions, as defined in GB/T 18487.1-2015, GB/T 18655, GB/T
19596, GB/T 20234.1, GB/T 29259, as well as the following terms and
definitions, apply to this document.
3.1 Conductive charging
A way to charge a rechargeable energy storage system, by the use of
electrical conduction.
3.2 Electric vehicle supply equipment; EVSE
A device, that is composed of AC charging piles, off-board chargers and/or
charging connection devices, to provide electrical energy for electric vehicles.
3.3 Charging mode
A method of connecting an external power source to an electric vehicle, to
power the vehicle.
3.4 Type of connection
A method of connecting an electric vehicle to the power grid (power source),
by the use of a charging connection device.
4 Requirements
4.1 General requirements
4.1.1 When the electric vehicle adopts the vehicle interface of GB/T 20234.2,
the vehicle shall be tested, according to the method of 5.2 ~ 5.8; the test results
shall meet the requirements of 4.2 ~ 4.8, respectively.
4.1.2 When the electric vehicle adopts the vehicle interface of GB/T 20234.3,
the vehicle shall be tested, according to the methods of 5.2 and 5.6; the test
results shall meet the requirements of 4.2 and 4.6, respectively.
4.1.3 When the electric vehicle adopts the connection mode A, the vehicle shall
be tested, according to the method of 5.2 ~ 5.8; the test results shall meet the
requirements of 4.2 ~ 4.8, respectively.
4.1.4 Electric vehicles can form a system with power supply equipment, which
are jointly serve as test objects. When the system is the test object, the system
shall be tested, according to the method of 5.2 ~ 5.5; the test results shall meet
the requirements of 4.2 ~ 4.5, respectively.
4.2 Broadband electromagnetic radiation emission
characteristics
4.2.1 When using the 10 m method to test, the bandwidth of the quasi-peak
detector is 120 kHz; the broadband electromagnetic radiation emission
characteristics shall not exceed the limit requirements in Table 1 and Figure 1.
4.2.2 When using the 3 m method to test, the bandwidth of the quasi-peak
detector is 120 kHz; the broadband electromagnetic radiation emission
characteristics shall not exceed the limit requirements in Table 2 and Figure 2.
4.3 Harmonic emission characteristics along the AC power line
4.3.1 When the input current per phase of AC power supply (single-phase or
three-phase) is ≤ 16 A, the harmonic emission, along the AC power line, shall
not exceed the limit requirements in Table 3.
4.3.2 When the input current of each phase of AC power supply is > 16 A and
≤ 75 A, the harmonic emission, along the AC power line, shall meet the following
requirements.
4.4 Voltage variation, voltage fluctuation, flicker emission
characteristics along the AC power line
The voltage change, voltage fluctuation, flicker emission along the AC power
line shall meet the following requirements.
4.5 Radio frequency conducted emission characteristics along
the AC power line
4.5.1 The radio frequency conducted emission, along the AC power line, shall
not exceed the quasi-peak and average limit requirements of Table 7.
4.5.2 When it can only be connected to the power grid in an industrial
environment, the radio frequency conducted emission, along the AC power line,
shall not exceed the quasi-peak and average limit requirements in Table 8.
4.6 Immunity to electromagnetic radiation
4.6.1 In the frequency band above 90% of 20 MHz ~ 2000 MHz, the field
strength shall be 30 V/m (root mean square value). The field strength in other
remaining frequency bands shall not be less than 25 V/m (root mean square
value).
4.6.2 During the immunity test, the vehicle in non-parking state, shall not be
able to move, through its own drive system; the parking function of the vehicle,
in the parking state, shall be normal; the vehicle charging process shall not be
interrupted. After the immunity test, the driving and parking functions of the
vehicle shall be normal.
4.7 Immunity of electrical fast transient pulse groups along AC
power lines
4.8 Surge immunity along AC power lines
4.8.1 The open circuit test voltage between line and ground is ±2 kV; the open
circuit test voltage between line and line is ±1 kV; the test voltage is applied
step by step. The surge waveform has a rise time of 1.2 μs AND a duration of
50 μs. Surge pulses of positive and negative polarity are applied 5 times each,
at the phases of 0°, 90°, 180°, 270°, respectively. The time interval between
consecutive pulses shall not be greater than 1 min.
4.8.2 In the immunity test, the non-parked vehicle shall not be able to move,
through its own drive system; the parking function of the parked vehicle shall
be normal; the vehicle's charging function shall be able to recover, through
simple manual operation, after the immunity test. After the immunity test, the
driving and parking functions of the vehicle shall be normal.
5 Test method
5.1 General provisions
5.1.1 Test plan
5.1.1.1 A test plan shall be developed, before the test, which at least includes
5.1.2 Vehicle state
5.1.2.1 Before the start of the test, the state of charge of the vehicle's
rechargeable energy storage system shall be at a relatively low level; the
vehicle can be discharged, by referring to the operation method in Appendix C.
During the test, the state of charge of the vehicle's rechargeable energy storage
system shall be between 20% and 80%.
5.1.2.2 During the test, the vehicle shall be stationary AND the engine (if any)
shall be OFF. All equipment, that is not related to the test function AND can be
turned off for a long time by the driver or occupant, shall be turned off.
5.1.2.3 During the test, if necessary, it may turn off the insulation monitoring
system of the DC charging vehicle's charging circuit. If turned off, it should
consider other safety protection measures.
5.1.3 Charging state
5.1.3.1 When conducting the emission test from 5.2 ~ 5.5, the charging current
of AC charging shall not be less than 80% of the continuous maximum charging
current value of the vehicle. When conducting the emission test of 5.2, the
charging current of DC charging shall not be less than 20 A, or 20% of the
continuous maximum charging current value of vehicle, whichever is larger,
unless otherwise specified.
5.2 Electromagnetic radiation emission
5.2.1 The simulated AC charging pile or simulated off-board charger can be
located in or outside the test site.
5.2.2 When using analog power supply equipment in the test site, the cables
on the equipment side shall fall vertically. The excess length of cables between
the artificial power supply network, artificial network and/or impedance
stabilization network shall be as close as possible, to the ground plane of the
site; meanwhile it should be folded into a "Z" shape. Where it cannot be folded
into a "Z" shape, the cable layout shall be accurately recorded in the test report.
5.3 Harmonic emission along AC power line
5.3.1 When the test object can work under single-phase and/or three-phase AC
power supply conditions, the test shall be carried out, under all possible power
supply conditions, respectively.
5.3.2 When the vehicle is the test object, the test conditions of the vehicle shall
Top view
5.3.3 When the system, which is composed of the vehicle and the power supply
equipment, is the test object, measure the input current of each phase of the
system, between the power supply equipment and the AC power supply. The
test conditions of the system shall meet the following requirements.
5.4 Voltage changes, voltage fluctuations, flicker emission
along the AC power line
5.4.1 When the test object can work under single-phase and/or three-phase AC
power supply conditions, the test shall be carried out, under all possible power
supply conditions, respectively.
5.4.2 When the vehicle is the test object, the test conditions of the vehicle shall
meet the following requirements.
5.4.3 When the system, which is composed of the vehicle and the power supply
equipment, is the test object, measure the input current of each phase of the
system, between the power supply equipment and the AC power supply. The
test conditions of the system shall meet the following requirements.
5.4.4 The total length of the charging cable, between the vehicle plug and the
measuring device, shall not be greater than 10 m. The excess length of the
cable shall be folded into a "Z" shape. The charging cable on the vehicle side
shall drop vertically, at a distance of mm from the vehicle body. The
cable shall be placed on an insulating support material, which has a height of
100 mm ± 25 mm.
5.4.5 The test layout of the vehicle, during charging, is as shown in Figure 9.
The test layout of the system is as shown in Figure 10.
5.4.6 Unless otherwise specified, the test shall be carried out, according to the
following requirements.
5.5 Conducted radio frequency emissions along AC power lines
5.5.1 When the test object can work under single-phase and/or three-phase AC
power supply conditions, the test shall be performed, under all possible power
supply conditions, respectively.
5.5.2 The spectrum analyzer or scanning receiver shall be used for testing. The
equipment parameters shall meet the requirements of GB/T 18655.
5.7 Immunity of electrical fast transient pulse groups along AC
power lines
5.7.1 When the test object can work under single-phase and/or three-phase AC
power supply conditions, the test shall be performed, under all possible power
supply conditions, respectively.
5.7.2 The projection of the charging cable, BETWEEN the coupling/decoupling
network AND the vehicle, on the horizontal plane, shall be linear AND
perpendicular to the longitudinal direction of the vehicle, which has a projection
5.7.3 The vehicle shall be placed directly on the metal grounding plate; the plate
shall be larger than the vertical projection size of the vehicle body; the distance,
between the edge of the plate and the horizontal distance of the vehicle body,
shall not be less than 20 cm.
5.7.4 The test layout is as shown in Figure 19 and Figure 20.
5.7.5 Unless otherwise specified, the test shall be carried out, in accordance
with the provisions of GB/T 17626.4.
5.8 Surge immunity along AC power lines
5.8.1 When the test object can work under single-phase and/or three-phase AC
power supply conditions, the test shall be performed, under all possible power
supply conditions, respectively.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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