JB/T 10425.2-2004 Yaw system of wind turbine generator set Part 2: Test methods
Some standard content:
ICS 27.180
Machinery Industry Standard of the People's Republic of China
JB/T10425.2—2004
Yaw system of wind turbine generator systemsPart 2: Test method
Issued on 2004-02-10
Implementation on 2004-06-01
Issued by the National Development and Reform Commission of the People's Republic of ChinaForeword．
Normative reference documents
3 Test conditions
3.1 Test site
3.2 Test unit..
3.3 Test instruments...
Test content and methods
Test preparation
Appearance inspection.
Calibration test of geographic orientation detection device
Yaw system yaw test
Yaw system yaw speed test and yaw positioning deviation test. Yaw system yaw damping torque test
Yaw system yaw braking torque test
Yaw system cable unwinding test
Yaw system twist cable protection test.
5 Processing of test results
Appendix A (Informative Appendix) Yaw system test raw data record table.
Appendix B (Informative Appendix) Yaw system test report format and content. B.1 Format,
B.2 Report content,
B.3 Others
Electricity
★Electricity
JB/T 10425.2—2004
JB/T 10425.2-—2004
1 Yaw system" is divided into two parts:
JB/T10425 "Wind turbine generator set
Part 1: Technical conditions;
Part 2: Test methods.
This part is the second part of JB/T10425. This part is formulated for the first time.
The format and rules of this part are in accordance with the provisions of GB/T1.1-2000 "Guidelines for Standardization Work Part 1: Structure and Writing Rules of Standards".
Appendix A and Appendix B of this part are informative appendices. This part is proposed by the China Machinery Industry Federation. This part is under the jurisdiction of the National Technical Committee for Standardization of Wind Power Machinery. The drafting unit of this part: Tomeide (Luoyang) Wind Power Equipment Co., Ltd. The main drafters of this part: Tian Huayi and Du Guangping. 1 Scope
Wind turbine generator set
JB/T10425.2—2004
Yaw system Part 2: Test methods
This part specifies the test conditions, test contents and test methods for the yaw system of grid-connected wind turbine generator sets. This part is applicable to the yaw system of horizontal-axis, active-yaw grid-connected wind turbine generator sets (hereinafter referred to as units). 2 Normative references
The clauses in the following documents become the clauses of this part through reference in this part of JB/T 10425. All subsequent amendments (excluding errata) or revisions of dated referenced documents are not applicable to this part. However, the parties to the agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For any undated referenced documents, the latest version shall apply to this part GB18451.1 Safety requirements for wind turbine generator sets (GB18451.1--2001, idtIEC61400-1:1999) GB/T18451.2-2003 Power characteristics test of wind turbine generator sets (idtIEC61400-12:1998) JB/T10425.1 Yaw system of wind turbine generator sets Part 1: Technical conditions 3 Test conditions
3.1 Test site
3.1.1 During the test, the wind speed at the test site should be 5m/s to 25m/s. 3.1.2 The test site should avoid complex terrain and obstacles, and there is a probability of wind speeds of 15m/s to 25m/s. 3.1.3 The test should be avoided under special climatic conditions (such as rain, snow, ice, etc.). 3.2 Tested unit
3.2.1 The tested unit shall be accompanied by relevant technical data, drawings, installation instructions and operation and maintenance instructions. 3.2.2 The tested unit shall be accompanied by a product certificate. 3.2.3 The installation of the tested unit shall comply with the provisions of the installation and operation instructions and relevant standards. 3.2.4 The tested unit shall comply with the relevant requirements of GB18451.1. 3.3 Test instruments
3.3.1 Calibration of test instruments and meters
The instruments, meters and devices used in the test shall be within the validity period of the qualified inspection by the metrology department. One secondary calibration source (instrument manufacturer or standard laboratory) is allowed to perform calibration. 3.3.2 Requirements for instruments and meters
a) Anemometer
According to the provisions of 7.2 in GB/T18451.2--2003. b)
Wind direction tester
According to the provisions of 7.3 in GB/T18451.2-2003. Thermometer
According to the provisions of 7.4 in GB/T18451.2-2003. d) Barometer
According to the provisions of 7.4 in GB/T18451.2-2003. e) Timer
Measuring range
Timing accuracy
≥jh;
≤15s/d.
JB/T 10425.2—-2004
f) Pressure gauge
Measuring range
0 MPa~20MPa.
Accuracy±100Pa.
g) Wind vane
Should be exactly the same as the wind vane of the unit under test. h) Compass
General use accuracy.
i) Marker pen
General grade is sufficient.
j) Feeler gauge
Measurement range is selected as required;
Accuracy<0.01mm.
3.3.3 Requirements for measuring device
a) Angle measuring device
Measurement range 0°～180°;
Accuracy±0.1°;
b) Angle measurement auxiliary device
Measurement range 0°～180°:
Accuracy±0.1°.
4 Test content and method
4.1 Test preparation
4.1.1 Measure and record the wind speed during the test in accordance with the provisions of 7.2 of GB/T18451.2-2003. 4.1.2 Measure and record the wind direction during the test in accordance with the provisions of 7.3 of GB/T18451.2-2003. 4.1.3 Measure and record the temperature value during the test in accordance with the provisions of 7.4 of GB/T18451.2-2003. 4.1.4 Measure and record the atmospheric pressure value during the test in accordance with the provisions of 7.4 of GB/T18451.2-2003. 4.2 Appearance inspection
4.2.1 Check whether the installation, connection and assembly clearance of each component of the yaw system conform to the requirements of the drawing process and relevant technical standards and record them. Check whether there is dirt, rust, damage, etc. on the surface of each component of the yaw system and record them. 4.2.2
4.2.3 Check whether there are defects on the machined surface and weld appearance of each component of the yaw system and record them. 4.3 Calibration test of geographic orientation detection device
4.3.1 This test should be carried out during the installation and commissioning stage of the unit under test. 4.3.2 Draw a straight line parallel to the rotor axis or a straight line whose horizontal projection is parallel to the horizontal projection of the rotor axis at an appropriate position of the unit under test. ,
4.3.3 Place the compass on the straight line and make the compass's true north scale line coincide with the straight line, read the angle α between the straight line and the compass's true north scale line, and then manually yaw to make α less than 5°. 4.3.4 Set in the relevant part of the control system of the unit under test. At this time, the calibrated direction is the true north direction of the geographic orientation detection device.
Note: If the unit under test does not have a geographic orientation detection device, this test can be omitted. 4.4 Yaw system yaw test
4.4.1 Yaw system clockwise yaw test
After starting the unit under test, make the unit under test in a normal shutdown state, and then manually operate the yaw system to yaw clockwise. After yaw half a circle, stop the yaw system. Repeat this operation at least three times. Observe whether the yaw is stable during the clockwise yaw process and whether there are any abnormal conditions (such as impact, vibration and inertia, etc.), and record the clockwise yaw results. 4.4.2 Yaw system counterclockwise yaw test
JB/T10425.2—2004
After starting the unit under test, put the unit under test in a normal shutdown state, and then manually operate the yaw system to yaw in the counterclockwise direction. After yaw half a circle, stop the yaw system. Repeat this operation at least three times. Observe whether the yaw is stable during the counterclockwise yaw process and whether there are any abnormal conditions (such as impact, vibration and inertia, etc.), and record the counterclockwise yaw results. 4.5 Yaw speed test and yaw positioning deviation test of yaw system 4.5.1 Yaw speed test
After starting the unit under test, put the unit under test in a normal shutdown state, and then manually operate the yaw system to run one circle clockwise, and then run one circle counterclockwise to reset. This cycle should be repeated three times. In each cycle, record the time Ts used for the yaw system to run one circle clockwise, and the time Tn used for the yaw system to run one circle counterclockwise. The average yaw speed n of the yaw system is calculated as follows: Where:
nsi=1/ Ts.
-The yaw speed of the yaw system in a certain cycle when running clockwise, in r/min; nsi
Ts, the time taken by the yaw system to yaw a certain cycle when running clockwise, in min; - the number of times the yaw system operates, i=1, 2, 3. n=+
Where:
Where:
The average yaw speed of the yaw system in clockwise operation, in r/min. nn=1/ Th
The yaw speed of the yaw system in a certain cycle when running counterclockwise, in r/min: - The time taken by the yaw system to yaw a certain cycle when running counterclockwise, in min; Th
i--the number of times the yaw system operates.
Where:
Where:
The average yaw speed of the yaw system when running counterclockwise, in r/min; np=(ns +n)/2
The average yaw speed of the yaw system, in r/min. np shall satisfy the following formula:
np-nel
×100%≤5%
Where:
The designed rated yaw speed of the yaw system, in r/min. 4.5.2 Yaw positioning deviation test of yaw system (1)
4.5.2.1 Install a wind vane that is exactly the same as the wind vane of the unit under test on the corresponding interface of the control system of the unit under test, and use this wind vane to replace the wind vane of the unit under test. 3
JB/T 10425.2--2004
4.5.2.2 Install the wind vane on the angle measurement auxiliary device. 4.5.2.3 Install the angle measurement device on the appropriate parts of the yaw system and the nacelle of the unit under test. 4.5.2.4 Make the starting position of the wind vane at zero point, and confirm whether the wind vane and the angle measurement device are installed correctly. After confirmation, start the unit under test and put it in the automatic state. 4.5.2.5 Manual operation: Take any different angle on the wind vane to make the unit under test automatically yaw an angle of 8, and repeat the operation three times.
4.5.2.6 Read or manually calculate the yaw angle 6 relative to 9 on the angle measurement device and record the values of 9 and in the yaw system test raw data record table in Appendix A. 4.5.2.7 Calculate the difference between 9f and 8, and the yaw positioning deviation A9 of the yaw system shall be the maximum value among the three differences. A is calculated according to the following formula: A0= maxf.-0n1
Wherein:
A yaw positioning deviation;
:—angle of wind vane:
ep—angle of each yaw operation.
△6 shall satisfy the following formula:
A8≤59
4.6 Yaw damping torque test of yaw system
: (7)
After starting the unit under test, make the unit under test in a normal shutdown state. Use a pressure gauge to check whether the setting value of the yaw damping setting mechanism on the hydraulic station is consistent with the use value specified in the design documents of the unit, and then install the pressure gauge on the yaw brake. After installation, confirm whether the pressure gauge is installed correctly. After confirmation, manually operate the yaw system to yaw at any angle and stop. Repeat the operation three times. Record the value pzi of the pressure gauge installed on the yaw brake during the yaw process, take its arithmetic mean value and record it as pz, pz is calculated according to the following formula: nz=
Where:
p-average pressure value of the pressure gauge on the yaw brake, kPaPzi-pressure value measured by the pressure gauge on the yaw brake during each yaw process, kPa. The actual total damping torque M of the yaw system during yaw is calculated according to the following formula: M2=n-Pz·A·R·μ
Where:
Mzactual total damping torque, unit is kN·m; n
-number of brake calipers;
A-effective action area of each brake caliper, unit is m2! R----equivalent radius from the brake caliper to the center of rotation of the brake disc, unit is m;-sliding friction coefficient.
Mz should satisfy the following formula:
M,-Mez
Where:
×100% ≤5%
Rated damping torque of yaw system, in kN·m. ：(9)
（11)
4.7 Yaw braking torque test of yaw system
JB/T 10425.2—2004
After starting the unit under test, make the unit under test in a normal shutdown state. Check whether the yaw brake pressure value set on the hydraulic station is consistent with the use value specified in the unit design documents, and then install a pressure gauge on the yaw brake. After the pressure gauge is installed, confirm whether the pressure gauge is installed correctly. After confirmation, manually operate the yaw system to yaw at any angle and then lock the yaw system brake. Repeat three times, check whether there is leakage at each connection point of the hydraulic circuit and record the pressure value pzli of the pressure gauge on the yaw brake during yaw braking. Take the minimum value of the three p's and record it as pzh. pal is calculated as follows: pzh min (pzh, +
wherein:
-the minimum value of the three pressure values measured by the pressure gauge on the yaw brake, in kPa; pzh
the pressure value measured by the pressure gauge on the yaw brake during each yaw braking, in kPa. The actual total braking torque Mz during yaw system braking is calculated as follows: Mzh=n·pzh'A·R·
wherein:
actual total braking torque, in kN·m. Number of brake calipers;
the effective working area of each brake caliper, in m2; A
the equivalent radius from the brake caliper to the center of rotation of the brake disc, in units of m: sliding friction coefficient.
Mz shall satisfy the following formula:
Mz≥Mezh
Where:
Rated braking torque of the yaw system, in kN·m. 4.8 Yaw system unwinding test
4.8.1 Yaw system initial unwinding test
（13）
（14)
After starting the tested unit under the conditions of initial unwinding of the tested unit, make the tested unit in a normal shutdown state. Manually operate the yaw system to yaw until the triggering conditions for initial unwinding are met. After confirmation, observe whether the tested unit automatically unwinds and Final reset. Record the results.
4.8.2 Yaw system final release test
After starting the unit under test, put the unit under test in a normal shutdown state and shield the initial release triggering conditions of the yaw system. Manually operate the yaw system to yaw until the triggering conditions for the final release are met, and observe whether the unit under test automatically performs the final release and final reset. Record the results.
4.9 Yaw system twist cable protection test
After starting the unit under test, put the unit under test in a normal shutdown state and shield the initial release and final release triggering conditions. Manually operate the yaw system to yaw until the triggering conditions for the twist cable protection are met. 5.1 The original data of each test content of the yaw system shall be recorded in the yaw system test original data record table in accordance with the provisions of this standard. For the format and content of the record table, see Appendix A.
5.2 For test items that do not meet the requirements of JB/T10425.1, debugging is allowed to meet the technical requirements. 5.3 After the test unit is tested in accordance with this part, the test organization shall immediately write a yaw system test report for the tested unit. For the format and content of the test report, see Appendix B.
JB/T 10425.22004
No.:
Name of testing organization:
Name of wind farm:
Name of wind turbine manufacturer:
Wind speed (m/s)
Temperature (℃)
Appearance inspection
Geographic orientation detection device
Calibration test
Result description:
Result description:
Yaw system clockwise yaw testResult description:
Yaw test and counterclockwise yaw test
Yaw system speed test
Yaw system yaw positioning deviation test
Yaw system damping force
moment test
Yaw system System braking force
Torque test
Initial release of yaw system
Cable test
Ultimate release of yaw system
Cable test
Yaw system torsion cable protection test
Result description:
Result description:
Result description:
Representative of testing organization: (Signature)
Year, month, day
Tester:
Appendix A
(Porcelain material appendix)
Yaw system test original data record table
Wind turbine number:
Wind turbine model:
Test conditions
Atmospheric pressure (kPa)
Original test data.
Te(min)
Wind farm representative: (Signature)
Counterclockwise yaw testbzxz.net
Result description:
Th(min)
Pu(kPa)
Pzh(kPa)
Year/Month/Day
Wind turbine manufacturer representative: (Signature) Year/Month/Day
Recorder:
B.1 Format
Appendix B
(Informative Appendix)
Format and content of yaw system test report
JB/T10425.2—2004
B.1.1 The writing of the unit model on the cover should comply with the provisions of the relevant technical documents, and the full name of the report preparation unit and the date should be signed at the bottom. B.1.2 Cover 2
Report name
Report number
Test leader
Participants
Cooperating units
Report date
Compiler
Report content
Task source;
b) Nature and purpose of the test;
c) Overview of the test site:
d) Weather conditions during the test:
e) Brief introduction to the test.
B.2.2 Technical parameters and characteristics
Test location
Test date
Year, month, day
Based on the design data or manufacturer's instructions, list the main technical parameters of the yaw system of the tested unit. B.2.3 Test basis
Test method and relevant standard codes and names. B.2.4 Test instruments and devices
List the names, models, specifications, accuracy, inspection dates, etc. of the instruments and meters used during the test. B.2.5 Test conditions, data and results
List the names, conditions and original data of the test items according to the tests conducted in Chapter 4. The results are obtained after sorting and calculation. B.2.6 Conclusions and suggestions
Analyze the test data according to JB/T10425.1 and the relevant technical data documents of the tested unit. The conclusions should be scientific, true and reliable. Carefully evaluate the performance, indicators and parameters of the yaw system of the tested unit according to the relevant technical documents of the tested unit, analyze the problems that occurred during the test, and put forward conclusions and suggestions. B.3 Others
If the test is interrupted or a major fault occurs, the reason for the interruption, the time and situation of continuing the test must be clearly stated in the test report. Major faults should explain the situation and treatment methods in detail.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.