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NB/T 31018-2018: Wind Turbine Generator System Technical Specification of Electrical Pitch System
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Wind Turbine Generator System Technical Specification of Electrical Pitch System
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Wind turbine generator system technical specification of electric pitch system
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Basic data | Standard ID | NB/T 31018-2018 (NB/T31018-2018) | | Description (Translated English) | Wind Turbine Generator System Technical Specification of Electrical Pitch System | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | K45 | | Word Count Estimation | 26,294 | | Date of Issue | 2018-06-06 | | Date of Implementation | 2018-10-01 | | Older Standard (superseded by this standard) | NB/T 31018-2011 | | Regulation (derived from) | National Energy Administration Announcement No.8 of 2018 | | Issuing agency(ies) | National Energy Administration | NB/T 31018-2011: Wind turbine generator system technical specification of electric pitch system---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Wind turbine generator system technical specification of electric pitch system
ICS 29.120.01
K45
Record number. 33817-2011
NB
People 's Republic of China energy industry standards
Electric pitch control of wind turbine
System technical specifications
Wind turbine generator system technical
Specification of electric pitch system
2011-08-06 release
2011-11-01 implementation
National Energy Board released
Directory
Foreword
1 Scope
2 normative reference documents
3 terms and definitions
4 technical requirements
4.1 conditions of use
4.2 functional requirements
4.3 Performance requirements
5 test method
5.1 test platform
5.2 Test equipment
5.3 Inspection and testing
6 inspection rules
6.1 product testing is divided into two types
6.2 factory inspection
6.3 Type inspection
7 logo, label, instruction manual
7.1 signs and labels
7.2 User's Manual
8 Packaging, transportation, storage
8.1 Packaging
8.2 Transport
8.3 Storage
Appendix A (informative) Capacitance charge and discharge time calculation
Foreword
This standard is applicable to electric pitch systems for grid-connected wind turbines, as a design, manufacture, testing and
The basis for certification.
This standard is drafted according to the rules given in GB/T 1.1-2009.
This standard is proposed by China Electrical Equipment Industry Association.
This standard is regulated by the Energy Industry Standardization Working Committee on Wind Power (NEA/TC1).
The main drafting unit of this standard. CLP equipment XJ Electric Co., Ltd., Shanghai Electric Group Co., Ltd. transmission and distribution
Branch, Hua Rui wind power technology (Group) Co., Ltd., Zhejiang Public Branch Automation Engineering Technology Co., Ltd., Guangdong Mingyang
Wind Power Technology Co., Ltd., Beijing Capital New Energy Co., Ltd., Shanghai Institute of Electrical Science, Huaxin Technology Inspection Co., Ltd.
Division, Inspection and Certification Center, Machinery Industry Beijing Institute of Technology and Economic Technology.
The main drafters of this standard. Tao Xuejun, Chen Guodong, Yang Zhiming, Li Lei, Shen Weidong, Zhao Mingli, Huang Jianfeng, Sun Jie,
Zhang Yang, Gong Jianghong, Chen Xuesong, fruit rock.
Technical specification for electric pitch control system of wind turbine
1 Scope
This standard specifies the technical requirements, test methods, and test methods for the electric pitch system of grid-connected wind turbines
Inspection rules, signs, labels, instructions, packaging, transportation, storage and so on.
This standard applies to grid-type land (ground) on the wind turbine generator with electric pitch system, as the design, manufacture, testing
And the basis for certification.
2 normative reference documents
The terms of the following documents are hereby incorporated by reference into this standard. Any date that references the date of the document
All subsequent amendments (excluding corrigenda) or revisions do not apply to this standard, however, encouragement under this standard
The parties to the agreement study whether the latest versions of these documents are available. Those who do not mind the date of the reference file, its latest version
This applies to this standard.
GB/T 191 packaging and storage icon
Rotating motor quota and performance GB 755-2008
GB/T 2422 Terminology for Environmental Testing of Electrical and Electronic Products (GB/T 2422-1995, neq IEC 60068-5-2..1990)
GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2. Test methods - Test A. Low temperature (idt IEC
60068-2-1..2007)
GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2. Test methods - Test B. High temperature (idt IEC
60068-2-2..2007)
GB/T 2423.3-2006 Environmental testing for electric and electronic products - Part 2. Test methods - Test Cab. constant damp heat test
(LEC 60068-2-78..2001. IDT)
GB/T 2423.4-2008 Basic environmental testing procedures for electric and electronic products - Test Db. Alternating thermal test method (eqv IEC
60068-2-30. 1980)
General specification for electronic computer premises GB/T 2887-2000
GB/T 2900.1 Basic terminology for electrical terminology
Electricity Terminology Wind Turbine
Electrical control equipment GB/T 3797-2005
Semiconductor converters GB/T 3859.1-1993
GB 4208 enclosure protection class (lP code) (eqv IEC 60529)
GB/T 4365 Electrotechnical terminology Electromagnetic compatibility [IEC 60050 (161)]
Mechanical safety machinery - Electrical equipment - Part 1. General technical requirements GB 5226.1
General rules for the use of industrial products GB/T 9969
GB/T 11287-2000 Electrical relays - Part 21. Measures for the vibration, shock and impact of measuring relays and protective devices
And seismic tests Part 1. Vibration tests (sinusoidal) (idt IEC 60255-21-1. 1988)
GB/T 14537-1993 Impact and impact test for measuring relays and protective devices (idt IEC 60255-21-2..1998)
Electrical relays - Part 5. Measurement relays and protective devices - Insulation requirements and tests GB/T 14598.3-2006.
(LEC 60255-5..2000, IDT)
Power quality - Three - phase voltage imbalance GB/T 15543-2008
Programmable controllers - Part 1. Generic information ISO /TS 15969 Technical Corrigendum
Programmable controllers - Part 2. Equipment requirements and testing GB/T 15969.2-2008
Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.2-2006
GB/T 17626.3-2006 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic radiation immunity test
GB/T 17626.4-2008 Electromagnetic compatibility test and measurement techniques Electrical fast transient burst immunity test
GB/T 17626.5-2008 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test
GB/T 17626.6-2008 Electromagnetic compatibility test and measurement techniques Radio frequency sensing conducted conducted disturbance immunity test
Electromagnetic compatibility - Testing and measurement techniques - Oscillation wave immunity test GB/T 17626.12-1998
Safety requirements for wind turbine installations GB 18451.1-2001
Classification of special environmental conditions - Part 1. Dry heat
Classification of special environmental conditions - Part 2. Dry - hot desert
Classification of special environmental conditions - Part 3. Plateau GB/T 19608.3-2004
Low - voltage switchgear and controlgear - General requirements for full housing GB/T 20641-2006
Lightning protection - Part 4. Electrical and electrical systems in buildings GB/T 21714.4-2008
GB/T 20540 Measurement and control of digital data communications Industrial control systems Fieldbus type 3; PROFIBUS
Road vehicle controller area network
Detail specification - Circular high - density rectangular connectors with circular movable crimp contacts (ISO 175301-801..2007);
3 terms and definitions
GB/T 2900.53, GB/T 2422, GB/T 2900.1, GB/T 4365 and the following terms and definitions apply
This standard.
3.1
Wind turbine generator system (WTGS)
The wind energy into a power system.
3.2
Failure failure
Perform the end of a prescribed function.
Note 1. "failure" concept as a definition, does not apply only by the software function of the project.
Note 2. This function is faulty after a failure.
Note 3. "failure" is an event, distinguished from "failure" as a state
3.3
Safety chain safe-chain
A hardware protection circuit independent of the control system consisting of several key protection nodes of the wind turbine.
3.4
Fault fault
Can not perform a characteristic state of a prescribed function. It is not included in preventive maintenance and other planned action periods
As well as the lack of external resources under the conditions can not perform the required functions.
Faults often act as a result of the failure of the function item itself, but may have existed before the failure.
3.5
Normal shutdown normal shutdown
Shutdown the whole process is under the control of the control system to shut down.
3.6
Emergency shutdown
The safety chain triggers the wind turbine to shut down quickly.
3.7
Conductive slip ring
With the sliding or rolling contact of the conductive parts, electrostatic coupling or electromagnetic coupling, between the rotating parts and the static parts
Power supply and power devices.
3.8
Electric pitch control system
Adjust the blade angle of the device, mainly including pitch controller, pitch motor, pitch servo drive, backup power
And other components.
3.9
Pitch driver pitch driver
A device for driving the pitch motor to adjust the blade angle of the wind turbine.
3.10
Backup power supply backup power supply
Power supply for variable pitch control systems when the grid is powered down.
3.11
Feathering feathering
The geometric angle of attack of the wind turbine blade changes to the state of the wind turbine blade approaching the zero lift, usually divided into normal feathers and emergency
Paddle
3.12
Pitch angle
In the specified blade radial position between the blade string and the rotor wheel between the angle of rotation.
3.13
Pitch angle working range opera g blade angle range
The working range of the blade pitch angle corresponding to the normal operating range of the wind turbine.
3.14
Maximum pitch rate
The maximum permissible pitch angle is the rate of change.
3.15
The rated voltage of pitch motor
The rated input voltage specified on the nameplate of the pitch motor.
3.16
Pitch motor rated speed of the rated speed of pitch motor
The rated speed specified on the nameplate of the pitch motor.
3.17
The rated torque of pitch motor
Under rated operating conditions, the pitch motor can operate continuously without exceeding the maximum torque value of the limit.
3.18
Redundant technology
Application of two devices or systems to ensure that the device-system or system can still be effectively implemented when the device-system fails
The function required by the line.
3.19
Paddle blade
Absorb wind energy to drive the rotor to rotate the parts.
4 technical requirements
4.1 conditions of use
4.1.1 Normal use of environmental conditions
Applicable to the following conditions and can work properly.
A) Operating ambient temperature.
1) Room temperature. -200 ℃ - 45 ℃.
2) low temperature type. -30 ℃ - 45 ℃.
B) relative humidity.
Air clean, the maximum temperature of 45 ℃, the relative humidity of not more than 50%. At lower temperatures, allow
Larger relative temperature. For example. 20 ℃ relative humidity of 95%. But should be taken into account due to temperature changes, may be
Occasionally produces moderate condensation.
C) Altitude ≤2000mm.
4.1.2 Normal test environmental conditions
Mainly including the use of climatic conditions, should be in the following atmospheric environment to test.
A) Ambient temperature. 15 ° C to 35 ° C.
B) Relative humidity. 45% -75%.
C) Atmospheric pressure. 86kPa-106kPa.
4.1.3 Test Baseline Atmospheric Conditions
A) Ambient temperature. 20 ℃ ± 2 ℃.
B) Relative humidity. 45% -75%.
C) Atmospheric pressure. 86kPa-106kPa.
4.1.4 storage, transport limit ambient temperature
The ambient temperature limits for ambient air during storage and transportation are. -40 ° C to 70 ° C.
4.1.5 Power supply conditions used
4.1.5.1 AC power supply
A) Power frequency range. 47.5Hz-51.5Hz.
B) Power supply voltage permissible fluctuation range. -15% to 10% of voltage rating.
C) The imbalance of the power supply shall meet the requirements of Chapter 4 of GB/T 15543-2008 and shall work normally within its scope.
4.1.5.2 AC power supply harmonics
Power waveform is positive wave, harmonic content of less than 5%.
4.1.5.3 DC power supply
A) Power supply voltage tolerance - 15% - 10%.
B) The supply voltage ripple factor is less than 5%.
4.1.6 requirements for the use of places
A) There should be no corrosion or damage to the atmosphere of the gas or conductive medium, there should be no fire or explosion caused by the media, not
There should be significant and more serious molds.
B) the use of places should have a defense against rain, snow, wind, sand facilities.
C) The grounding resistance of the place of use shall comply with the requirements of 4.4 of GB/T 2887-2000.
D) For special use requirements, see GB/T 19608.
4.1.7 other conditions of use
When the environmental conditions specified in 4.1.1-4.1.6 are exceeded, a special agreement shall be signed between the manufacturer and the user.
4.2 functional requirements
4.2.1 structure and appearance requirements
A) cabinet structure for the stainless steel, electrical cabinet construction standards should be consistent with the provisions of GB/T 20641-2006.
B) shell, appearance, the surface should be no scratches, no deformation, should be consistent with GB/T 3797-2005 4.12.1 provisions.
4.2.2 laying and connecting cables and wires
Shall comply with the provisions of Chapter 14 of GB 5226.1.
4.2.3 Component requirements
The components used in the system shall conform to their own relevant standards. among them.
A) Programmable controllers shall comply with the requirements of GB/T 15969.1 and GB/T 15969.2.
B) The conductors and cables of the cabinet shall comply with the requirements of 13 of GB 5226.1.
C) The cabinet connection shall comply with the requirements of EN 175301-801-2007.
4.2.4 Service operation function
The service operation function includes the following aspects.
4.2.4.1 Manual switching pitch function
The system should have a manual pitch switch that can be individually controlled for each paddle.
4.2.4.2 man-machine service operation function
A) Information exchange.
Variable pitch system parameters query, set, system status view and fault diagnosis.
B) Speed control.
Through the man-machine interface, the pitching direction and pitch speed of each blade can be controlled by jogging.
C) position control.
Through the man-machine interface can be carried out on each blade position control. You can set the pitch pitch, acceleration and given pitch
position.
D) Calibration.
The position of the 0 ° position of the encoder and the position of the limit switch can be calibrated via the display unit.
4.2.5 Synchronous pitch function
4.2.5.1 Automatic pitching function
During normal operation, the pitch system should be able to receive the wind turbine control system command, adjust the pitch angle in real time,
Group to bear the level of load to achieve the optimal operation of the unit and safe operation. Should be able to automatically start according to the master requirements, automatic
Pitch, automatic paddle and so on. Such as. by the wind turbine control system issued speed, acceleration and pitch command to change
Pitch control. The pitch system should be able to work properly throughout the pitch range, with the blades synchronized and the pitch performance to meet the following
begging.
A) The maximum speed of the three blades is not less than 6 °/s.
B) The control accuracy of the pitch actuator is not more than 0.05 °.
C) The recommended value of the three blades is not more than 2 °.
D) pitch to accept the main control system under the variable pitch command response period of not more than 20ms.
E) three blade angle feedback to the master system time delay is not greater than 20ms.
4.2.5.2 Remote manual pitching
Through the wind turbine control system of the man-machine interface to send speed, acceleration and pitch command for pitch pitch control
system. The pitch system should operate normally throughout the pitch range, and the blade is synchronized and the pitch performance meets the technical requirements of 4.2.5.1.
4.2.6 safe feathers
4.2.6.1 Power-down of power grid
In the power grid, the pitch system should be able to automatically tap the back-up power to complete the safety paddle.
4.2.6.2 Communication failure
In the event of a communication failure between the pitch system and the main control system, the pitch system shall be capable of automatic safety.
4.2.6.3 Safety chain disconnection
The safety chain is divided into two parts. the safety chain of the pitch system and the safety chain of the main control system to the pitch system.
The safety chain of the pitch system can include the following. Emergency stop button press, controller failure (for pitch control
From the system
System), any - drive failure. When the safety chain is disconnected, the pitch system should be able to automatically complete the safety.
4.2.7 Troubleshooting
Pitch system should have self-diagnosis and protection functions, real-time detection of equipment failure or abnormal situation, and a good security
The whole strategy to deal with. There is a complete record of accident information to facilitate fault diagnosis, information can be sent to the timely control system. Diagnosis and
Protection should include the following.
A) Lightning protection action.
B) Fuse or protective switch action.
C) abnormal cabinet temperature.
D) communication timeout or interrupt.
E) controller failure (for variable pitch systems that include the controller).
F) Drive failure, generally include the following.
1) DC bus low voltage.
2) DC bus overvoltage.
3) Drive overcurrent.
4) The drive is overtaken.
5) power switch failure.
6) Internal stacks are abnormal.
7) Braking resistor circuit failure.
8) motor missing phase.
9) Speed, position sensor short circuit, open circuit and numerical abnormality.
10) Internal fan failure.
G) motor failure, generally include the following.
1) Motor overtemperature.
2) Motor overcurrent.
3) Motor stall protection.
4) Motor brake is abnormal.
H) Charger failure.
I) Charging circuit open circuit.
J) The backup power supply voltage is abnormal, including overvoltage and undervoltage.
4.2.8 Power safe
Pitch system initialization When the power, when the ambient temperature, humidity beyond the scope of the internal components of the work, the system should be pre-added
Hot function, only the conditions to meet the requirements, only to allow the system to work.
4.2.9 Backup power supply
4.2.9.1 Battery backup power supply system
4.2.9.1.1 Capacity
The capacity of the battery pack shall meet the requirements for the completion of the three emergency propulsion movements in the case of the specified load of the blades. Calculated by the following formula
Time.
Emergency dash time (s) = 90 °/maximum pitch rate (°/s)
(1)
The specified load shall be in accordance with the provisions of 7.4 of GB 18451.1-2001.
4.2.9.1.2 Charging time
Refer to the charging requirements of the oil, select the appropriate charging current to minimize the charging time, usually charging time is 6-
10h.
4.2.9.1.3 Charging mode
Generally for the two, according to system requirements to determine.
A) using a shared charger rounds the way of charging.
B) The battery packs are individually charged.
4.2.9.1.4 Monitoring function
The system should have the following monitoring functions.
A) Charge control function.
Control the battery charge as required. Online monitoring of battery and charger failure, when the fault, to stop charging, Paul
Protect the battery.
B) Temperature control function.
So that the battery work in the specified temperature range, to ensure that the battery capacity and life to meet the design requirements.
C) System monitoring.
1) The battery status monitoring function, including over voltage, under voltage, over temperature.
2) charge and discharge circuit in good condition, charger status (over temperature, output short circuit, overload, input voltage anomaly).
It is recommended to have the following monitoring functions.
1) Unit battery failure or voltage imbalance.
2) battery capacity monitoring function.
4.2.9.2 Capacitor backup power supply system
4.2.9.2.1 Capacity
Capacitor group capacity should meet the requirements of the paddle in the case of the required load to complete more than 1 times the action. Load according to
GB 18451.1-2001 in the provisions of 7.4, the calculation of the time of the feathers see (1).
The calculation of the discharge time of the capacitor group can be found in Appendix A.
4.2.9.2.2 Charging time
The charging time of the system should meet the time when the charging time should be less than 2min. Special circumstances, users and manufacturing
Business negotiation.
Capacitance group charging time can be calculated according to Appendix A.
4.2.9.2.3 Charging mode
Using their own independent charging method.
4.2.9.2.4 monitoring function
The system should have the following monitoring functions.
A) Charge control function.
Able to control the charger start and stop, online monitoring capacitor and charger failure, failure to turn off the charger to protect the capacitor.
B) Temperature control function.
So that the capacitor work in the specified temperature range, to ensure that the capacitance of the capacity and life to meet the design requirements.
C) System monitoring.
1) Capacitor status monitoring function. Including capacitor group overvoltage, undervoltage, single or module overvoltage, monomer
Or module voltage is unbalanced, over temperature.
2) charge and discharge circuit in good condition, charger status (over temperature, output short circuit, overload, input voltage anomaly).
4.2.10 communication
4.2.10.1 Interface General requirements
A) Pitch system communication interface, mainly used to achieve communication with the master system. Interface can be used CAN, Profibus
Fieldbus mode.
B) The communication signal line should be shielded twisted pair copper cable, the connector should be with shielding shell, the communication line should be connected at both ends of the shield
To the shell well grounded.
C) Termina...
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