This standard specifies the energy efficiency level, equivalent limit values, energy-saving evaluation values, and test methods for asynchronous starting three-phase permanent magnet synchronous motors, permanent magnet synchronous motors for elevators, and variable frequency drive permanent magnet synchronous motors (hereinafter referred to as permanent magnet synchronous motors) This standard is applicable to asynchronous starting three-phase permanent magnet synchronous motors with voltages of 1140V and below, 50Hz three-phase AC power supply, rated power of 0.55kw-375kw, poles of 2, 4, 6, 8, 12, and 16, single speed enclosed self fan cooling, continuous working system; 1000V and below, powered by variable frequency power supply, with a rated power of 0.55kw-110kw permanent magnet synchronous motor for elevators; A voltage of 1000V and below, powered by a variable frequency power supply, with a rated power of 0.55kw-90kw for variable frequency drive permanent magnet synchronous motors
2 Normative References
The following documents are essential for the application of this document.
. All dated references. The dated version only applies to this document. For undated references, the latest version (including all modification orders) applies to this documentGB 755-2008 Rotating Electrical Machines - Rating and Performance
GB 10068-2008- Measurement of Mechanical Vibration of Electric Machines with a Shaft Center Height of 56mm and Above Evaluation and Limits
GB 10069.3-2008 Measurement Methods and Limits of Noise from Rotating Electrical Machines - Part 3: Noise Limits
GB/T 22669-2008 Test Methods for Three Phase Permanent Magnet Synchronous Motors
GB/T 22670-2008 Test Methods for Three Phase Cage Induction Motors Powered by Frequency Converters
3 Terms and Definitions
The following terms and definitions apply to this document
3.1
Asynchronous start three-phase permanent magnet synchronous motor
A permanent magnet synchronous motor that is started using the asynchronous torque generated by the starting winding at a certain frequency and voltage.
3.2
Permanent magnet synchronous motor driven by variable frequency equipment
Permanent magnet synchronous motor driven by variable frequency device
3.3
Minimum allowable values of energy efficiency for permanent magnet synchronous motors
3.4
Target minimum allowable values of energy efficiency for permanent magnet synchronous motors
After a certain period of implementation of this standard, the minimum allowable values of energy efficiency for permanent magnet synchronous motors are allowed.
3.5
Evaluation values of energy conservation for permanent magnet synchronous motor
The minimum standard value that the efficiency of a permanent magnet synchronous motor that meets the energy-saving certification requirements should meet under the standard testing conditions.
4 Technical Requirements
4.1 Basic Requirements
The performance, safety performance, explosion-proof performance, noise and vibration requirements of permanent magnet synchronous motors should comply with relevant standards such as GB 755-2008, GB 10068-2008, GB 10069.3-2008, etc
4.2 Energy efficiency level of permanent magnet synchronous motors
The energy efficiency level of permanent magnet synchronous motors is divided into three levels, with level 1 having the highest efficiency.
. The measured efficiency of various types of permanent magnet synchronous motors at rated output power should not be lower than the provisions of Table 1, Table 2, and Table 3, and their tolerances should comply with the provisions of Chapter 12 of GB 755-2008 The rated power value of permanent magnet synchronous motor is not listed in the table, and its efficiency is determined using linear interpolation method4.3 Energy efficiency limit values for permanent magnet synchronous motors
The measured efficiency of the energy efficiency limit values for permanent magnet synchronous motors at rated output power should not be lower than the provisions of Level 3 in Tables 1, 2, and 3.
4.4 Target Energy Efficiency Limit Values for Permanent Magnet Synchronous Motors
The measured efficiency of the target energy efficiency limit values for permanent magnet synchronous motors at rated output power should not be lower than the provisions of Level 2 in Tables 1, 2, and 3, which will be implemented 5 years after the implementation of this standard and replace the energy efficiency limit values for permanent magnet synchronous motors in 4.3.
4.5 Energy saving evaluation value of permanent magnet synchronous motor
The measured efficiency of the energy saving evaluation value of permanent magnet synchronous motor at rated output power should not be lower than the provisions of Level 2 in Tables 1, 2, and 3.
5 Test Methods
The efficiency of asynchronous starting three-phase permanent magnet synchronous motors should be determined according to the "Loss Analysis Method for Measuring Input Output Power (Method B)" in GB/T 22669-2008, Section 10.2.2 The efficiency of permanent magnet synchronous motors and variable frequency drive permanent magnet synchronous motors used in elevators shall be determined according to GB/T 22670-2008 Section 10.2.1 "Direct Method - Input Output Method (A Method)"
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