QC/T 1088-2017 PDF English
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QC/T 1088-2017: Specifications of charge-discharge motor controller 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/QCT1088-2017
QC
AUTOMOTIVE INDUSTRY STANDARD
ICS 43.040
T 35
Specifications of charge-discharge motor
controller for electric vehicles
Issued on. APRIL 12, 2017
Implemented on. OCTOBER 01, 2017
Issued by. Ministry of Industry and Information Technology of the
People's Republic of China
Table of Contents
Announcement... 3
Foreword... 6
1 Scope... 7
2 Normative references... 7
3 Terms and definitions... 8
4 Requirements... 9
5 Test methods... 12
6 Inspection rules... 15
7 Signs... 18
8 Marks, packaging, transport and storage... 18
Annex A (normative) Control guiding circuit and control principle of controller’s
charging and discharging... 21
1 Scope
This Standard specifies the requirements for terms and definitions,
classification, technical requirements, inspection and test methods as well as
marks, packaging, transport and storage of charge-discharge motor controller
for electric vehicles.
This Standard is applicable to the charge-discharge motor controller for electric
vehicles that can be externally charged (hereinafter referred to as the controller).
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 191, Packaging and storage marks
GB/T 2900.33, Electrotechnical terminology - Power electronics
GB/Z 17625.6-2003, Electromagnetic compatibility - Limits - Limitation of
emission of harmonic currents in low-voltage power supply systems for
equipment with rated current greater than 16A
GB/T 18384.3-2015, Electrically propelled road vehicles - Safety
specifications - Part 3.Protection of persons against electric shock
GB/T 18487.1-2015, Electric vehicle conductive charging system - Part 1.
General requirements
GB/T 18487.2-2001, Electric vehicle conductive charging system - Electric
vehicles requirements for conductive connection to an A.C/D.C. supply
GB/T 18488.1-2015, Drive motor system for electric vehicles Part 1.
Specification
GB/T 18488.2-2015, Drive motor system for electric vehicles - Part 2.Test
methods
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
2900.33, GB/T 18487.1-2015, GB/T 18488.1-2015 and GB/T 19596 as well as
the followings apply.
3.1 charge-discharge motor controller
an integrated device that is fixedly installed on electric vehicles, which can drive
motor, realize vehicle charging, and discharging for external load (including grid)
3.2 G2V mode (grid to vehicle mode)
a mode that the power grid supplies power to the vehicle energy storage device
through the controller
3.3 V2G mode (vehicle to grid mode)
a mode that the vehicle energy storage device supplies power to the grid
through the controller
3.4 V2L mode (vehicle to load mode)
a mode that the vehicle energy storage device supplies power to other loads
outside the vehicle through the controller
4 Requirements
4.1 General requirements
4.1.1 The controller shall have the communication and fault diagnosis functions
required by the vehicle.
4.1.2 The technical requirements of the controller in drive motor mode can be
4.2 Electrical performance
4.2.1 Operating voltage
4.2.1.1 When the voltage of the vehicle power battery is within the specified
range, the output current harmonic of the controller in V2G mode shall meet the
requirements of GB/Z 17625.6-2003.The DC current component shall not
exceed 1% of its AC rating.
4.2.2 Frequency range
4.2.2.1 In V2G mode, the frequency change of the grid-connected voltage is in
the range of 50Hz ± 1Hz.
4.2.2.2 In V2L mode, the controller can output voltage frequency in the range
of 50Hz ±1Hz.
4.2.2.3 In V2V mode, the controller can output voltage frequency in the range
of 50Hz ±1Hz.
4.2.3 Output current steady-state error
In the constant current charging or discharging mode, when the output current
is less than or equal to 10A, the error to the set current shall be no more than
0.5A. When the output current is greater than 10 A, the error to the set current
shall be no more than 5%.
4.2.6 Electrical safety requirements
4.2.6.1 Insulation resistance
The cold state and thermal insulation resistance between the high voltage
terminal of the controller and the outer casing, high voltage terminal and signal
terminal shall not be less than 1MΩ.
4.2.6.4 Grounding protection
The grounding point of the controller shall have an obvious grounding mark.
4.2.7 Active discharging and passive discharging
The active discharging and passive discharging of the controller shall meet the
requirements of 5.5.3 of GB/T 18488.1-2015.
4.2.8 Overload protection
When the controller is in V2G, V2L and V2V modes, the overload capacity shall
meet. the controller has a continuous current and reliable working time of no
less than 1min under 110% rated load; the continuous and reliable operation at
125% rated load current is not less than 10s.
4.2.9 Charging and discharging
Under the specified product technical conditions, the controller shall have the
following functions.
4.2.10 Protective function
4.2.10.1 Overcurrent protection
The controller shall be overcurrent protected when the specified current is
exceeded.
4.2.10.6 Reverse protection
In the charging or discharging mode, when the DC terminal of the controller is
connected to the positive and negative poles of the vehicle energy storage
device, it shall not start and give a prompt after power-on. After troubleshooting,
the controller shall work properly.
4.2.10.7 Anti-islanding protection
In V2G mode, when the grid system incorporated by the controller system loses
pressure, the controller system must be disconnected from the grid within the
specified time limit to prevent islanding.
At least one active and passive anti-islanding protection shall be set.
4.2.10.8 Restore of V2G mode
After the controller stops the V2G mode due to the over-limit state, the controller
shall not send power to the grid after the grid voltage and frequency return to
the normal range for 20s to 5min.
4.3 Electromagnetic compatibility
The electromagnetic compatibility of the controller in charging or discharging
mode shall meet the requirements of QC/T 895-2011.
4.4 Environmental adaptability
The environmental adaptability of the controller shall meet the requirements of
GB/T 18488.1-2015.
5 Test methods
5.1 Test conditions
5.1.1 Environmental conditions
The test environmental conditions are required to be.
5.1.2 Measuring apparatus and instrument
5.1.2.1 Scope
All measuring instrument ranges shall be able to effectively cover the range to
be measured. All measuring instrument ranges shall be changed with the
measured resistance, voltage or current. The pointer or meter reading shall be
within the measuring range.
5.2 Electrical performance
5.2.1 Operating voltage
Make the controller work in the drive motor mode and the charging or
discharging mode, adjust each input voltage. The controller shall be operated
for 1min under the conditions of 4.2.1 respectively.
5.2.2 Frequency range
Put the controller in charging or discharging mode and operate with power to
adjust the grid frequency. The controller shall be operated for 1min under the
conditions of 4.2.2.
5.2.6 Electrical safety requirements
5.2.6.1 Insulation resistance
The test method is carried out according to the test method of 5.7.5 of GB/T
18488.2-2015.
5.2.6.2 Withstand voltage
The test method is carried out according to the test method of 5.8.2 of GB/T
18488.2-2015.
5.2.8 Overload protection
The test method is negotiated between the supplier and the purchaser.
5.2.9 Charging and discharging
The test method is negotiated between the supplier and the purchaser.
5.2.10 Protective function
The test method is negotiated between the supplier and the purchaser.
5.3 Electromagnetic compatibility
The test method is carried out in accordance with the test method in QC/T 895-
2011.
5.4 Environmental adaptability
The test method is carried out according to the test method in GB/T 18488.2-
2015.
6 Inspection rules
6.1 Exit-factory inspection
The controller must perform the inspection test of the following items. See Table
1 for the inspection test items.
6.2 Type inspection
6.2.1 Inspection conditions
Type inspection shall be performed in one of the following situations.
6.2.2 Sampling
The sample for type inspection shall be extracted from the products inspected
qualified of exit-factory inspection. The sampling quantity can be negotiated
with the host factory.
6.2.3 Test item
See Table 2 for type inspection items.
Table 2 -- Type inspection
6.2.4 Evaluation of test results
7 Signs
7.1 Lead wire and terminal
Each power line or terminal of the controller shall have obvious signs. The
positive and negative poles of the controller's power input interface are marked
with “+” and “-” respectively. The power line or power terminal corresponding to
each of the controller and the motor shall be consistent with the signs of the
power line or terminal of each phase of the motor.
7.2 Controller nameplate
The controller nameplate shall include the following information.
7.3 Hazard warning
The controller shall indicate the words “high voltage hazard” in a prominent
position. The example is as shown in Figure 1.And indicate the necessary
safety instructions next to the words “high voltage hazard”.
8 Marks, packaging, transport and storage
8.1 Marks
8.1.1 Product mark
8.2.2 The packing box shall be firm. The product shall not be shaken in the box,
and it shall not be damaged by machinery during transport, loading and
unloading, and can be protected from moisture, corrosion, vibration and dust.
The technical documents supplied with the product in the packing box shall
include packing list, product exit-factory certificate, product instruction manual,
and list of spare parts. The outside of the box shall be marked.
8.3 Storage and maintenance
The product shall be stored and maintained in a clean, dry and well-ventilated
environment at 5°C ~ 40°C. Avoid sun, fire, and water. At the same time avoid
being placed with corrosive substances.
8.4 Loading-unloading, transport
The impact and vibration of the product during handling shall be limited to a
minimum.
Annex A
(normative)
Control guiding circuit and control principle of controller’s charging and
discharging
A.1 V2L control guiding circuit and control principle
When the electric vehicle is in V2L mode (the vehicle is a "discharge vehicle"),
use the control guiding circuit shown in Figure A.1 to perform the connection
confirmation of discharging connection device as well as the determination of
rated current parameters. The circuit consists of discharging control device,
controller, R4, RC and S3.Wherein the discharging control device can be
integrated in the controller or other onboard control unit. The vehicle interface
shall comply with the provisions of GB/T 20234.The RC resistance of the
discharging connection device shall comply with the requirements of Table A.1.
QC/T 1088-2017
QC
AUTOMOTIVE INDUSTRY STANDARD
ICS 43.040
T 35
Specifications of charge-discharge motor
controller for electric vehicles
Issued on. APRIL 12, 2017
Implemented on. OCTOBER 01, 2017
Issued by. Ministry of Industry and Information Technology of the
People's Republic of China
Table of Contents
Announcement... 3
Foreword... 6
1 Scope... 7
2 Normative references... 7
3 Terms and definitions... 8
4 Requirements... 9
5 Test methods... 12
6 Inspection rules... 15
7 Signs... 18
8 Marks, packaging, transport and storage... 18
Annex A (normative) Control guiding circuit and control principle of controller’s
charging and discharging... 21
1 Scope
This Standard specifies the requirements for terms and definitions,
classification, technical requirements, inspection and test methods as well as
marks, packaging, transport and storage of charge-discharge motor controller
for electric vehicles.
This Standard is applicable to the charge-discharge motor controller for electric
vehicles that can be externally charged (hereinafter referred to as the controller).
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 191, Packaging and storage marks
GB/T 2900.33, Electrotechnical terminology - Power electronics
GB/Z 17625.6-2003, Electromagnetic compatibility - Limits - Limitation of
emission of harmonic currents in low-voltage power supply systems for
equipment with rated current greater than 16A
GB/T 18384.3-2015, Electrically propelled road vehicles - Safety
specifications - Part 3.Protection of persons against electric shock
GB/T 18487.1-2015, Electric vehicle conductive charging system - Part 1.
General requirements
GB/T 18487.2-2001, Electric vehicle conductive charging system - Electric
vehicles requirements for conductive connection to an A.C/D.C. supply
GB/T 18488.1-2015, Drive motor system for electric vehicles Part 1.
Specification
GB/T 18488.2-2015, Drive motor system for electric vehicles - Part 2.Test
methods
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
2900.33, GB/T 18487.1-2015, GB/T 18488.1-2015 and GB/T 19596 as well as
the followings apply.
3.1 charge-discharge motor controller
an integrated device that is fixedly installed on electric vehicles, which can drive
motor, realize vehicle charging, and discharging for external load (including grid)
3.2 G2V mode (grid to vehicle mode)
a mode that the power grid supplies power to the vehicle energy storage device
through the controller
3.3 V2G mode (vehicle to grid mode)
a mode that the vehicle energy storage device supplies power to the grid
through the controller
3.4 V2L mode (vehicle to load mode)
a mode that the vehicle energy storage device supplies power to other loads
outside the vehicle through the controller
4 Requirements
4.1 General requirements
4.1.1 The controller shall have the communication and fault diagnosis functions
required by the vehicle.
4.1.2 The technical requirements of the controller in drive motor mode can be
4.2 Electrical performance
4.2.1 Operating voltage
4.2.1.1 When the voltage of the vehicle power battery is within the specified
range, the output current harmonic of the controller in V2G mode shall meet the
requirements of GB/Z 17625.6-2003.The DC current component shall not
exceed 1% of its AC rating.
4.2.2 Frequency range
4.2.2.1 In V2G mode, the frequency change of the grid-connected voltage is in
the range of 50Hz ± 1Hz.
4.2.2.2 In V2L mode, the controller can output voltage frequency in the range
of 50Hz ±1Hz.
4.2.2.3 In V2V mode, the controller can output voltage frequency in the range
of 50Hz ±1Hz.
4.2.3 Output current steady-state error
In the constant current charging or discharging mode, when the output current
is less than or equal to 10A, the error to the set current shall be no more than
0.5A. When the output current is greater than 10 A, the error to the set current
shall be no more than 5%.
4.2.6 Electrical safety requirements
4.2.6.1 Insulation resistance
The cold state and thermal insulation resistance between the high voltage
terminal of the controller and the outer casing, high voltage terminal and signal
terminal shall not be less than 1MΩ.
4.2.6.4 Grounding protection
The grounding point of the controller shall have an obvious grounding mark.
4.2.7 Active discharging and passive discharging
The active discharging and passive discharging of the controller shall meet the
requirements of 5.5.3 of GB/T 18488.1-2015.
4.2.8 Overload protection
When the controller is in V2G, V2L and V2V modes, the overload capacity shall
meet. the controller has a continuous current and reliable working time of no
less than 1min under 110% rated load; the continuous and reliable operation at
125% rated load current is not less than 10s.
4.2.9 Charging and discharging
Under the specified product technical conditions, the controller shall have the
following functions.
4.2.10 Protective function
4.2.10.1 Overcurrent protection
The controller shall be overcurrent protected when the specified current is
exceeded.
4.2.10.6 Reverse protection
In the charging or discharging mode, when the DC terminal of the controller is
connected to the positive and negative poles of the vehicle energy storage
device, it shall not start and give a prompt after power-on. After troubleshooting,
the controller shall work properly.
4.2.10.7 Anti-islanding protection
In V2G mode, when the grid system incorporated by the controller system loses
pressure, the controller system must be disconnected from the grid within the
specified time limit to prevent islanding.
At least one active and passive anti-islanding protection shall be set.
4.2.10.8 Restore of V2G mode
After the controller stops the V2G mode due to the over-limit state, the controller
shall not send power to the grid after the grid voltage and frequency return to
the normal range for 20s to 5min.
4.3 Electromagnetic compatibility
The electromagnetic compatibility of the controller in charging or discharging
mode shall meet the requirements of QC/T 895-2011.
4.4 Environmental adaptability
The environmental adaptability of the controller shall meet the requirements of
GB/T 18488.1-2015.
5 Test methods
5.1 Test conditions
5.1.1 Environmental conditions
The test environmental conditions are required to be.
5.1.2 Measuring apparatus and instrument
5.1.2.1 Scope
All measuring instrument ranges shall be able to effectively cover the range to
be measured. All measuring instrument ranges shall be changed with the
measured resistance, voltage or current. The pointer or meter reading shall be
within the measuring range.
5.2 Electrical performance
5.2.1 Operating voltage
Make the controller work in the drive motor mode and the charging or
discharging mode, adjust each input voltage. The controller shall be operated
for 1min under the conditions of 4.2.1 respectively.
5.2.2 Frequency range
Put the controller in charging or discharging mode and operate with power to
adjust the grid frequency. The controller shall be operated for 1min under the
conditions of 4.2.2.
5.2.6 Electrical safety requirements
5.2.6.1 Insulation resistance
The test method is carried out according to the test method of 5.7.5 of GB/T
18488.2-2015.
5.2.6.2 Withstand voltage
The test method is carried out according to the test method of 5.8.2 of GB/T
18488.2-2015.
5.2.8 Overload protection
The test method is negotiated between the supplier and the purchaser.
5.2.9 Charging and discharging
The test method is negotiated between the supplier and the purchaser.
5.2.10 Protective function
The test method is negotiated between the supplier and the purchaser.
5.3 Electromagnetic compatibility
The test method is carried out in accordance with the test method in QC/T 895-
2011.
5.4 Environmental adaptability
The test method is carried out according to the test method in GB/T 18488.2-
2015.
6 Inspection rules
6.1 Exit-factory inspection
The controller must perform the inspection test of the following items. See Table
1 for the inspection test items.
6.2 Type inspection
6.2.1 Inspection conditions
Type inspection shall be performed in one of the following situations.
6.2.2 Sampling
The sample for type inspection shall be extracted from the products inspected
qualified of exit-factory inspection. The sampling quantity can be negotiated
with the host factory.
6.2.3 Test item
See Table 2 for type inspection items.
Table 2 -- Type inspection
6.2.4 Evaluation of test results
7 Signs
7.1 Lead wire and terminal
Each power line or terminal of the controller shall have obvious signs. The
positive and negative poles of the controller's power input interface are marked
with “+” and “-” respectively. The power line or power terminal corresponding to
each of the controller and the motor shall be consistent with the signs of the
power line or terminal of each phase of the motor.
7.2 Controller nameplate
The controller nameplate shall include the following information.
7.3 Hazard warning
The controller shall indicate the words “high voltage hazard” in a prominent
position. The example is as shown in Figure 1.And indicate the necessary
safety instructions next to the words “high voltage hazard”.
8 Marks, packaging, transport and storage
8.1 Marks
8.1.1 Product mark
8.2.2 The packing box shall be firm. The product shall not be shaken in the box,
and it shall not be damaged by machinery during transport, loading and
unloading, and can be protected from moisture, corrosion, vibration and dust.
The technical documents supplied with the product in the packing box shall
include packing list, product exit-factory certificate, product instruction manual,
and list of spare parts. The outside of the box shall be marked.
8.3 Storage and maintenance
The product shall be stored and maintained in a clean, dry and well-ventilated
environment at 5°C ~ 40°C. Avoid sun, fire, and water. At the same time avoid
being placed with corrosive substances.
8.4 Loading-unloading, transport
The impact and vibration of the product during handling shall be limited to a
minimum.
Annex A
(normative)
Control guiding circuit and control principle of controller’s charging and
discharging
A.1 V2L control guiding circuit and control principle
When the electric vehicle is in V2L mode (the vehicle is a "discharge vehicle"),
use the control guiding circuit shown in Figure A.1 to perform the connection
confirmation of discharging connection device as well as the determination of
rated current parameters. The circuit consists of discharging control device,
controller, R4, RC and S3.Wherein the discharging control device can be
integrated in the controller or other onboard control unit. The vehicle interface
shall comply with the provisions of GB/T 20234.The RC resistance of the
discharging connection device shall comply with the requirements of Table A.1.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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