This part specifies the definition, requirements, basic parameters, test methods and quality determination methods of the yaw system of off-grid horizontal axis wind turbines. This standard applies to horizontal axis wind turbines with a rotor swept area of ​​less than 40 square meters. JB/T 10402.1-2004 Off-grid wind turbine yaw system Part 1: Technical conditions JB/T10402.1-2004 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/10402.1—2004
Yaw system of off-grid wind turbiae generator systemPart 1:Technology condition
Published on 2004-02-10
Published on 2004-06-01
National Development and Reform Commission of the People's Republic of ChinaForeword
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Terms and definitions:
This clause is prohibited,
Technical requirements
Inquiry on sensitivity.
Total qualitative adjustment
Full section characteristics
Stock requirements..
Protective performance,www.bzxz.net
Anti-deformation ability
Specification of width and curvature
Test method
Inspection specifications and, weight determination
Out! Inspection
Type test
3 Quality determination source
JBrT 10402.1—2004
.TR/T10402.1—2004
JR/TI4N2 "Off-grid wind turbine yaw system 3 is divided into two parts:
Part 1: Technical case:
Part 2: Test method.
Part 1 of 10402.
This part is formulated for the first time.
This part is compiled according to the requirements of the existing rules of Part 1.1
2I Standardization "Work Guide" Part 1: Standard structure and compilation This part is proposed by the China Machinery Industry Federation and is under the jurisdiction of the National Machinery Standardization Technical Committee. Part 1: Scope
Off-grid wind turbines
1 Yaw system
Part 1: Technical conditions
J1/1104G21—2004
This part defines the definition, requirements, parameters, test methods and quality control methods of the yaw system of off-grid horizontal wind turbines:
This part covers horizontal axis wind turbines with a wind turbine rotor area of ​​460N. 2 Normative references
The number of references in the planning documents is the number of the references in this part. For all current referenced documents, all subsequent amendments (excluding errors or revisions) are not applicable to this part. However, it is encouraged that the latest editions of these documents be used for research and development based on this part or the equipment method. For all undated referenced documents, the latest editions apply to this part: G:[3/T1.981-1992 General requirements for wind turbine design: H/1162 Product insertion supervision number and sample table used for the number of unqualified products per hundred units as the quality standard C1.1 Off-grid wind turbine Part 1: Technical specifications 10T10402.2 Yaw system of real-grid wind turbine Part 2: Test methods 3 Terms and definitions ||tt ||The following terms and definitions apply to this section: 3.1
Yaw
The rotor axis of a flat-axis wind turbine rotates vertically around the axis of the wind turbine and deviates from the direction of the wind. 3.2
Speed ​​regulation system (Syamofyaw) (Yawspeedregulatlon) utilizes the property that wind pressure changes with wind, and the rotor rotates around the vertical axis to make the rotor axis deviate from the airflow. It is used to adjust the angle between the rotor and the airflow direction, so that the speed and output power of the wind turbine generator change with wind changes.
The system does not have a white wind wheel, a rotating body, a tail rudder, a civil pin, etc. 3.3
The wind wheel angle defleetiunanglofrcoturThe change of the horizontal projection of the wind wheel axis and the airflow square: 3.4
Preparel deflection angle of taritrudderThe angle of projection on the horizontal plane between the wheel axis and the tail is determined in advance during installation. 3.5
The eccentricity of the wind wheel is the distance between the wind wheel axis and the center of rotation of the unit 36
The front extension length of the wind wheel is the distance between the wind wheel axis and the center of rotation of the unit. 10402.1—2004
The change of the projection of the star sales line on the wind wheel rate surface, 3.5
The projection of the back angle of the electric sales and the lead weight line on the wind wheel production surface is the same as the projection of the lead weight line on the wind wheel production surface. 4.1 Non-wind light side deviation speed regulating type power generator set, in stable In the state of adjustment, the rotor deflection angle should be less than 542. For high-speed wind turbines, when the wind speed is greater than the speed regulating wind speed, the rotor tracking should be within 1·0° of the wind speed. The change should be smooth, continuous and without any distortion. 4.3 The navigation system of high-speed wind turbines should be able to flexibly adjust the rotor deflection characteristics: when the speed changes, the rotor can be balanced by the tail in advance to balance the rotor deflection. The wind speed is less than 1s", and the wind rotor speed and power do not exceed the assumptions of GBT168.1 when the wind speed is greater than the wind speed.
44 The following technical parameters of the wind turbine generator system with side-biased rotor shall be included in the bidding period: rotor eccentricity, front rotor distance, pre-bias angle, side tilt angle, and false angle of the blade. 5 Technical requirements
5. Adjustment sensitivity
The adjustment system shall be able to ensure that the rotor can correctly adjust to the wind direction with the change of wind speed. Wind speed: The wind speed against the wind is not greater than the cut-off wind speed. 5.2 Stability of yaw system
The yaw system should be able to ensure that the wind rotor is still within the working wind speed range. 53 Adjustment characteristics
The yaw system should be able to adjust the speed of the wind turbine to the wind speed. After the wind speed is adjusted, the wind rotor speed changes according to the design and safety specifications. And ensure that the wind rotor speed is gentle and continuous: ensure the unit is running normally. 5 4 Design requirements
The load calculation, aerodynamic design and structural design in the yaw system design shall comply with the provisions of B/T11981. 5.5 Protection performance
The moving parts of the rotating body shall be reliably lubricated and sealed, and shall ensure flexible and noiseless rotation in dusty environments, and also ensure that they will not corrode or rust in coastal areas with high humidity and fog. 5.5 Anti-deformation capacity
The various parts of the yaw system of the wind turbine generator set shall comply with the requirements of B/T11981. The tail pin shall not be damaged during its service life. or deformation 5? Xie Navigation stability
The wind wheel should face the wind accurately and be in the lower wind seat. 6 Test method
The test should be carried out in accordance with the provisions of JB/T10402.2. ? Inspection rules and quality judgment
71 Factory inspection
7.1.1 All components and parts of the system shall be inspected by the manufacturer, and the inspection shall be qualified. 71.2 The yaw system itself does not require factory inspection 72 Type test
The wind turbine generator system should be subjected to type test if any of the following conditions occur: a) When the new type test is completed: h) When regular inspection is carried out; c) When batch production reaches a certain number and:
When the national quality supervision agency requires it
) When the user makes a request during batch production
73 Quality judgment regulations
7.3.1 Sampling basis
The oil sample for system test should be passed in accordance with the provisions of G/T14162. 32 inspection items and quality judgment
Inspection items and quality judgment are as follows 1.
Table 1 Quality judgment table
7.3.3 Sampling method
Inspection items
Directional sensitivity
Directional secret qualitative
Adjustment durability
Design material selection positive sugar
Protection sleep
Anti-deterioration ability
Yaw system washing qualitative
7.3.3.1 The total number of inspections is at least 10 sets. 7.3.3.2 The quality consistency of the unit products in the inspection unit is unqualified, divided into A and B categories: unqualified
IR/1 1042 1—2:04
a) The sales quality level of Class A unqualified is =2.5%, the inspection level is, the monitoring sampling method is n-2, =1 (is the sample number, is the number of failures)
) The B-type unqualified monitoring level is \=40%, the inspection level is, the monitoring sampling method is =2, =3 (is the sample efficiency * is the number of failures).
7.3.4 Quality judgment method
a] All technical indicators and performance of the inspected products meet the technical requirements, and the batch of products is judged to be qualified; h) If the inspected products have no Class A non-conforming items and the number of Class H non-conforming items is equal to or less than 2, the batch of products will be judged as unqualified: c: If the inspected products have 1 Class A non-conforming item or 3 or more Class H non-conforming items, the batch of products will be judged as unqualified. 7.3.5 Direct inspection and demarcation
a) For the non-conforming items, if the adjustment method can be used, it is allowed to be re-inspected after adjustment: b) If the re-inspection is still unqualified, the batch of products will be unqualified: 3
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