This document specifies the types, technical requirements, test methods, inspection rules, warning signs, product information, packaging, transportation and storage, environmental protection, safety etc. of low-voltage doubly-fed induction generators for grid-connected wind turbines with the rated voltage of 1,140V and below.
This document is applicable to low-voltage doubly-fed induction generator for grid-connected wind turbines with the rated voltage of 1,140V and below (hereinafter referred to as "generator").
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 - Pictorial marking for handling of goods
GB/T 755-2019 Rotating electrical machines - Rating and performance
GB/T 997 Rotating electrical machines - Classification of types of construction, mounting arrangements and terminal box position for (IM Code)
GB/T 1029 Test procedures for three-phase synchronous machines
GB/T 1032-2012 Test procedures for three-phase induction motors
GB/T 1971 Rotating electrical machines - Terminal markings and direction of rotation
GB/T 1993 Cooling methods for rotating electrical machines
GB/T 4942-2021 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification
GB/T 10068 Mechanical vibration of certain machines with shaft heights 56mm and higher - Measurement, evaluation and limits of vibration severity
GB/T 10069.1 Measurement of the 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
GB/T 10069.3 Measurement of airborne noise emitted by rotating electrical machines and the noise limits - Part 3: Noise limits
GB/T 14711 General requirements for safety of small and medium size rotating electrical machines
GB/T 19963.1 Technical specification for connecting wind farm to power system - Part 1: On shore wind power
GB/T 20160 Recommended practice for testing insulation resistance of rotating machinery
GB/T 22714 Test specifications of interturn insulation of form-wound winding for AC low-voltage electrical machines
GB/T 22719.1 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 1: Test methods
GB/T 22719.2 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 2: Test limits
GB/T 22720.1 Rotating electrical machines - Qualification and quality control tests of partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters
GB/T 22720.2 Rotating electrical machines - Qualification tests for the partial discharge resistant electrical insulation systems (Type II) used in rotating electrical machines fed from voltage converters
GB/T 25388.1 Wind turbines generator system - Double-fed converter - Part 1: Technical condition
GB/T 30790.5-2014 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems
GB/T 31140 Environmental specifications of wind-power generation equipments for plateau
JB/T 7836.1 Electric heater for electrical machine - Part 1: General technique specifications
JB/T 10500.1 Embedded thermometer resistance for electrical machines - Part 1: General specification, measuring methods and examine rule
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.25 as well as the following apply.
3.1
doubly-fed induction generator
a kind of variable speed constant frequency generator, in which the stator is directly connected to the power grid and the rotor is connected to the power grid through the converter, which is capable of exchanging energy
3.2
rotation speed
specified speed where the generator reaches the rated power output
3.3
operating speed range
range from the minimum operating speed to the maximum operating speed of the generator connected to the grid (nmim to nmax)
3.4
rated condition
condition with rated power, rated voltage, rated frequency, rotation speed and rated power factor
4 Symbols
For the purposes of this document, the following symbols apply.
Ir: the rotor current, A.
Is: the stator current, A.
I0: the no-load current, A
n: the speed, r/min.
nN: the rotation speed, r/min.
nmax: the maximum operating speed, r/min.
nmin: the minimum operating speed, r/min.
n1: the synchronous speed, r/min.
Pe: the total active power of generator, KW.
Pr: the active power of rotor, kW.
Ps: the active power of stator, kW.
P0: the no-load input power, kW.
Qr: the reactive power of rotor, kvar.
UN: the rated voltage of generator, V.
Udc: the DC bus voltage, V.
Ur: the operating voltage of rotor, V.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols 5 Structural type and main parameter series 6 Technical requirements 7 Test methods 8 Inspection rules 9 Warning signs 10 Product information 11 Packaging, transportation and storage 12 Environmental protection 13 Safety
Wind turbine - Doubly-fed induction generator
1 Scope
This document specifies the types, technical requirements, test methods, inspection rules, warning signs, product information, packaging, transportation and storage, environmental protection, safety etc. of low-voltage doubly-fed induction generators for grid-connected wind turbines with the rated voltage of 1,140V and below.
This document is applicable to low-voltage doubly-fed induction generator for grid-connected wind turbines with the rated voltage of 1,140V and below (hereinafter referred to as "generator").
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 - Pictorial marking for handling of goods
GB/T 755-2019 Rotating electrical machines - Rating and performance
GB/T 997 Rotating electrical machines - Classification of types of construction, mounting arrangements and terminal box position for (IM Code)
GB/T 1029 Test procedures for three-phase synchronous machines
GB/T 1032-2012 Test procedures for three-phase induction motors
GB/T 1971 Rotating electrical machines - Terminal markings and direction of rotation
GB/T 1993 Cooling methods for rotating electrical machines
GB/T 2900.25 Electrotechnical terminology - Rotating electrical machines
GB/T 4942-2021 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification
GB/T 10068 Mechanical vibration of certain machines with shaft heights 56mm and higher - Measurement, evaluation and limits of vibration severity
GB/T 10069.1 Measurement of the 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
GB/T 10069.3 Measurement of airborne noise emitted by rotating electrical machines and the noise limits - Part 3: Noise limits
GB/T 14711 General requirements for safety of small and medium size rotating electrical machines
GB/T 19963.1 Technical specification for connecting wind farm to power system - Part 1: On shore wind power
GB/T 20160 Recommended practice for testing insulation resistance of rotating machinery
GB/T 22714 Test specifications of interturn insulation of form-wound winding for AC low-voltage electrical machines
GB/T 22719.1 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 1: Test methods
GB/T 22719.2 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 2: Test limits
GB/T 22720.1 Rotating electrical machines - Qualification and quality control tests of partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters
GB/T 22720.2 Rotating electrical machines - Qualification tests for the partial discharge resistant electrical insulation systems (Type II) used in rotating electrical machines fed from voltage converters
GB/T 25388.1 Wind turbines generator system - Double-fed converter - Part 1: Technical condition
GB/T 30790.5-2014 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems
GB/T 31140 Environmental specifications of wind-power generation equipments for plateau
JB/T 7836.1 Electric heater for electrical machine - Part 1: General technique specifications
JB/T 10500.1 Embedded thermometer resistance for electrical machines - Part 1: General specification, measuring methods and examine rule
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.25 as well as the following apply.
3.1
doubly-fed induction generator
a kind of variable speed constant frequency generator, in which the stator is directly connected to the power grid and the rotor is connected to the power grid through the converter, which is capable of exchanging energy
3.2
rotation speed
specified speed where the generator reaches the rated power output
3.3
operating speed range
range from the minimum operating speed to the maximum operating speed of the generator connected to the grid (nmim to nmax)
3.4
rated condition
condition with rated power, rated voltage, rated frequency, rotation speed and rated power factor
4 Symbols
For the purposes of this document, the following symbols apply.
Ir: the rotor current, A.
Is: the stator current, A.
I0: the no-load current, A
n: the speed, r/min.
nN: the rotation speed, r/min.
nmax: the maximum operating speed, r/min.
nmin: the minimum operating speed, r/min.
n1: the synchronous speed, r/min.
Pe: the total active power of generator, KW.
Pr: the active power of rotor, kW.
Ps: the active power of stator, kW.
P0: the no-load input power, kW.
Qr: the reactive power of rotor, kvar.
UN: the rated voltage of generator, V.
Udc: the DC bus voltage, V.
Ur: the operating voltage of rotor, V.
Contents of GB/T 23479-2023
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Structural type and main parameter series
6 Technical requirements
7 Test methods
8 Inspection rules
9 Warning signs
10 Product information
11 Packaging, transportation and storage
12 Environmental protection
13 Safety
