Technical specification for converter of permanent magnet wind turbine generator
1 Scope
This standard specifies the technical requirements, test methods and inspection rules of converter of permanent magnet wind turbine generator (hereinafter referred to as “converter”) as well as the relevant information of its products.
This standard is applicable to AC-DC-AC voltage source converters connected to the stator winding of permanent magnet wind turbines. This standard may be implemented as a reference for converter used for squirrel cage high-speed wind turbine, electrically excited wind turbine and medium/high speed permanent magnet wind turbine.
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 - Pictorial marking for handling of goods
GB/T 2423.1-2008 Environmental testing - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental testing - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.3 Environmental testing - Part 2: Testing method - Test Cab: Damp heat, steady state
GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h+12h cycle)
GB/T 2900.33 Electrotoechnical terminology - Power electronics
GB/T 2900.53 Electro-technical terminology - Wind turbine generator systems
GB/T 3797-2016 Electrical control assemblies
GB/T 3859.1-2013 Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements
GB/T4208 Degrees of protection provided by enclosure (IP code)
GB/T 12668.2-2002 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable frequency a.c. power drive systems
GB 12668.3-2012 Adjustable speed electrical power dive systems - Part 3: EMC product standard including specific test methods
GB/T 13384 General specifications for packing of mechanical and electrical product
GB/T 13422-2013 Semiconductor converters - Electrical test methods
GB 14048.1 Low-voltage switchgear and controlgear - Part 1: General rules
GB/T 15543-2008 Power quality - Three-phase voltage unbalance
GB/T 18451.1 Wind turbine generator systems - Design requirements
GB/T 19963-2011 Technical rule for connecting wind farm to power system
GB/T 20320-2013 Measurement and assessment of power quality characteristics of wind turbines generator systems
JB/T 5777.2-2002 General specification for control and protection panel (cabinet and desk) of secondary circuit of power system
NB/T31051 Test procedure for low voltage ride through capability of wind turbine
NB/T 31054 Test procedure for grid adaptability of wind turbine
NB/T 31111 Test procedure for high voltage ride through of wind turbine
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3859.1-2013, GB/T 2900.33 and GB/T 2900.53 as well as the following apply.
3.1
permanent magnet wind turbine converter
AC-DC-AC voltage source static converter matched with permanent magnet wind turbine generator and connected between stator winding and grid
Note: It has the functions of, for example, sending the stator winding energy into the grid, etc. It mainly consists of generator-side converter, DC link, grid-side converter and its control system. Some types of converters may make energy flow in both directions, while others may only make energy flow to the grid side.
3.2
generator-side converter
static converter connected with the stator winding of the permanent magnet wind turbine generator and used for converting alternating current with variable voltage, current amplitude and frequency from the wind turbine into direct current
Note: It is also called stator-side converter or generator-side converter, which may be of full control bridge type or uncontrolled bridge type + boost type, including filters that likely present.
3.3
DC link
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
7 Marking, packaging, storage and transport
NB/T 31015-2018, NB 31015-2018, NBT 31015-2018, NB/T31015-2018, NB/T 31015, NB/T31015, NB31015-2018, NB 31015, NB31015, NBT31015-2018, NBT 31015, NBT31015
Introduction of NB/T 31015-2018
Technical specification for converter of permanent magnet wind turbine generator
1 Scope
This standard specifies the technical requirements, test methods and inspection rules of converter of permanent magnet wind turbine generator (hereinafter referred to as “converter”) as well as the relevant information of its products.
This standard is applicable to AC-DC-AC voltage source converters connected to the stator winding of permanent magnet wind turbines. This standard may be implemented as a reference for converter used for squirrel cage high-speed wind turbine, electrically excited wind turbine and medium/high speed permanent magnet wind turbine.
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 - Pictorial marking for handling of goods
GB/T 2423.1-2008 Environmental testing - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental testing - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.3 Environmental testing - Part 2: Testing method - Test Cab: Damp heat, steady state
GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h+12h cycle)
GB/T 2900.33 Electrotoechnical terminology - Power electronics
GB/T 2900.53 Electro-technical terminology - Wind turbine generator systems
GB/T 3797-2016 Electrical control assemblies
GB/T 3859.1-2013 Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements
GB/T4208 Degrees of protection provided by enclosure (IP code)
GB/T 12668.2-2002 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable frequency a.c. power drive systems
GB 12668.3-2012 Adjustable speed electrical power dive systems - Part 3: EMC product standard including specific test methods
GB/T 13384 General specifications for packing of mechanical and electrical product
GB/T 13422-2013 Semiconductor converters - Electrical test methods
GB 14048.1 Low-voltage switchgear and controlgear - Part 1: General rules
GB/T 15543-2008 Power quality - Three-phase voltage unbalance
GB/T 18451.1 Wind turbine generator systems - Design requirements
GB/T 19963-2011 Technical rule for connecting wind farm to power system
GB/T 20320-2013 Measurement and assessment of power quality characteristics of wind turbines generator systems
JB/T 5777.2-2002 General specification for control and protection panel (cabinet and desk) of secondary circuit of power system
NB/T31051 Test procedure for low voltage ride through capability of wind turbine
NB/T 31054 Test procedure for grid adaptability of wind turbine
NB/T 31111 Test procedure for high voltage ride through of wind turbine
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3859.1-2013, GB/T 2900.33 and GB/T 2900.53 as well as the following apply.
3.1
permanent magnet wind turbine converter
AC-DC-AC voltage source static converter matched with permanent magnet wind turbine generator and connected between stator winding and grid
Note: It has the functions of, for example, sending the stator winding energy into the grid, etc. It mainly consists of generator-side converter, DC link, grid-side converter and its control system. Some types of converters may make energy flow in both directions, while others may only make energy flow to the grid side.
3.2
generator-side converter
static converter connected with the stator winding of the permanent magnet wind turbine generator and used for converting alternating current with variable voltage, current amplitude and frequency from the wind turbine into direct current
Note: It is also called stator-side converter or generator-side converter, which may be of full control bridge type or uncontrolled bridge type + boost type, including filters that likely present.
3.3
DC link
Contents of NB/T 31015-2018
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
7 Marking, packaging, storage and transport
