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GB/T 18488.2-2006 English PDF (GBT18488.2-2006)

GB/T 18488.2-2006 English PDF (GBT18488.2-2006)

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GB/T 18488.2-2006: The electrical machines and controllers for electric vehicles -- Part 2: Test methods

This Part specifies the apparatus, instruments, test preparation and each-item test methods used for testing the electrical machines and controllers for electric vehicles. This Part applies to the electrical machines and controllers for electric vehicles.
GB/T 18488.2-2006
GB
ICS 43.120
T 47
NATIONAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Replacing GB/T 18488.2-2001
The Electrical Machines and Controllers for Electric
Vehicles-Part 2. Test Methods
ISSUED ON. DECEMBER 1, 2006
IMPLEMENTED ON. JULY 1, 2007
Jointly Issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ);
Standardization Administration Committee (SAC) of the People's
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Test Preparation ... 5
4 General Test Items ... 6
5 Environmental Test ... 13
6 Temperature Rise Test ... 13
7 Characteristics and Efficiency Testing for Electrical Machine Torque ... 14 8 Regenerated Energy Feedback Test ... 15
9 Electromagnetic Compatibility Testing ... 16
Foreword
Under the general title "The Electrical Machines and Controllers for Electric Vehicles", GB/T 18488 includes two parts.
- Part 1. General Specification;
- Part 2. Test Methods.
This part is Part 2 of GB/T 18488.
This Part is the revision of GB/T 18488.2-2001. From the implementation date, this Part replaces GB/T 18488.2-2001 "Test Procedures of the Electrical Machines and Controllers for Electric Vehicles".
The main changes in this revision include.
1) The relevant normative references are added. It mainly includes GB/T 1032-2005, JB/T 9615.1-2000 and GB/T 13422-1992.
2) In Chapter 4 ~ Chapter 9, detailed description is supplemented to the methods required by test items. The common test items in Chapter 4 ~ Chapter 7 of the previous standard are adjusted and supplemented.
This Part was proposed by the National Technical Committee on Automobiles of Standardization Administration of China.
This Part shall be under the jurisdiction of National Technical Committee on Automobiles of Standardization Administration of China.
Drafting organizations of this Part. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing Institute of Technology, and Zhuzhou Electric Locomotive Research Institute. Chief drafting staffs of this Part. Wen Xuhui, Liu Tongyan, Guo Shuying, Zhang Chengning, Liu Jun, and Ju Long.
The previous edition replaced by this Part is.
- GB/T 18488.2-2001.
The Electrical Machines and Controllers for Electric Vehicles -
Part 2. Test Methods
1 Scope
This Part specifies the apparatus, instruments, test preparation and each-item test methods used for testing the electrical machines and controllers for electric vehicles. This Part applies to the electrical machines and controllers for electric vehicles. 2 Normative References
The following standards contain provisions which, through reference in this Part of GB/T 18488, constitute provisions of this Part. For dated references, the subsequent amendments (excluding corrigendum) or revisions of these publications do not apply. However, all parties who enter into agreement according to this Part are encouraged to study whether the latest editions of these documents apply. For undated references, the latest editions of the normative documents are applicable to this Part.
GB 755-2000 Rotating Electrical Machines-Rating and Performance (idt IEC 60034-1.1996) GB/T 1029-2005 Test Procedures for Three-phase Synchronous Machines (IEC 60034-2. 1972)
GB/T 1032-2005 Test Procedure for Three-phase Induction Motors
GB/T 2423.17-1993 Basic Environmental Testing Procedures for Electric and Electronic Products Test Ka. Salt Mist (eqv IEC 60068-2-11. 1981)
GB/T 3859.1-1993 Semiconductor Convertors-Specification of Basic Requirements (eqv IEC 60146-1-1. 1991)
GB/T 4942.1-2006 Degrees of Protection Provided by the Integral Design of Rotating Electrical Machines (IP Code)- Classification (IEC 60034-5. 2000, IDT)
GB/T 4942.2-1993 Degrees of Protection Provided by Enclosures for Low-voltage Apparatus (eqv. IEC 60947-1.1988)
GB/T 10068-2000 Mechanical Vibration of Certain Machines with Shaft Heights 56 mm and Higher-Measurement, Evaluation and Limits of Vibration (idt IEC 60034-14. 1996)
GB/T 10069.1-2006 Measurement of Airborne Noise Emitted by Rotating Electrical Machines and the Noise Limits-Part 1. Method for the Measurement of Airborne Noise Emitted by Rotating Electrical Machines (ISO 1608. 1999, MOD)
GB/T 12665-1990 Requirements of Damp-heat Testing of Electrical Machine for Service in General Environmental Condition
GB/T 13422-1992 Power Semiconductor Converters-Electrical Test Methods
GB/T 14023-2006 Vehicles Boats and Internal Combustion Engine Driven Devices-Radio Disturbance Characteristics-Limits and Methods of Measurement (CSPR 12. 2005, IDT)
GB 14711-2006 Safety Requirements of Small and Medium Size Rotating Electrical Machines (neq IEC 60034-1)
GB/T 17619-1998 Limits and Methods of Testing for Immunity of Electrical/Electronic Sub-assemblies in Vehicles to Electromagnetic Radiation
JB/T 9615.1-2000 Test Methods of the Interturn Insulation on Random Wound Winding for AC Low-voltage Machines
JB/T 9615.2-2000 Test Limits of the Interturn Insulation on Random Wound Winding for AC Low-voltage Machines
3 Test Preparation
3.1 Selection of measuring apparatus
3.1.1 Accuracy of apparatus
Magnetic electric instrument or other instruments, including digital instruments, which are able to read the effective values, may be adopted for measuring the effective values of voltage and current. During the test, the accuracy of adopted electric measuring apparatus and instruments shall not be less than Grade 0.5 (except for the tramegger). And the accuracy of DC shunt shall not be less than Grade 0.2. The accuracy of digital rotating speed gauge shall not be less than 0.1% ?? 1 digits. The accuracy of torque measuring instrument and dynamometer shall not be less than 1% (when directly measuring the efficiency, it shall not be less than 0.5%). And the error of thermometer shall be within ?? 1??C.
When selecting the instrument, the measured value shall be within the range of 20%~95% of the instrument range.
3.1.2 Measuring requirements
a) Within the permissible measurement range of the amperemeter, a shunt shall not be adopted as much as possible. When measuring current with a shunt, the resistance of measuring wire shall be selected according to the selecte voltmeter.
b) During the test, each instrument shall be read simultaneously.
3.1.3 Measurement of input power of the controller
The measured value of input power of electrical machine controller is the PRODUCT of the measured values of input voltage AND the current of the electrical machine controller. The input voltage shall be measured at the input terminal of the controller, and the input current shall be measured at the input connection of the controller.
3.2 Test power supply
The DC power supply served shall meet the characteristics of voltage and current that of the vehicle battery. And the supply output impedance shall be equal to the specified battery impedance as much as possible.
3.3 Wiring
The wiring during the test shall be similar to the wiring in vehicles. Attention shall be paid to that the impedance of the external circuit of supply controller shall be equal to the impedance of wiring in vehicles as much as possible, supposing that the wiring inevitably differs from the one in vehicles.
3.4 Cooling device
For cooling conditions of electrical machines and controllers, specific application conditions in vehicles shall be simulated. And the type of cooling device for electrical machines and controllers shall be recorded into the parameter testing reports of the electrical machine power of electric vehicles.
Feeding efficiency shall be calculated according to Formula (12).
reg
?? = (12)
Where,
W2 - energy input to power supply during feeding test.
b) Test by using an inertia wheel device
Measure the angular speed ??1 of inertia wheel before the feeding test, and the angular speed ??2 after the feeding test. Meanwhile measure the voltage at both ends of the power supply, and the current and duration of input power supply during feeding. Energy shall be calculated according to Formula (13).
1 ( )
W J ?? ??= ??? (13)
Where,
J - inertia of inertia wheel.
Feeding efficiency shall be calculated according to Formula (14).
reg
?? = (14)
c) Test by using electrical generation
Electrical machine is dragged by prime motor. Controller is connected to power supply with 125% rated voltage value. And the electric generation test shall be conducted under different rotating speed.
9 Electromagnetic Compatibility Testing
9.1 Radiated interference test
Measurement shall be carried out according to the measurement method of radiated interference specified in Chapter 5 of GB 14023-2006.
9.2 Electromagnetic immunity test
According to of GB/T 17619-1998, testing shall be conducted according to the measurement method specified in Chapter 4 and the immunity level requirements specified in Table 1.

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