CN201786556U - Yaw mechanism of the wind power generator and yaw control system applying the yaw mechanism - Google Patents
Yaw mechanism of the wind power generator and yaw control system applying the yaw mechanism Download PDFInfo
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- CN201786556U CN201786556U CN2010205473530U CN201020547353U CN201786556U CN 201786556 U CN201786556 U CN 201786556U CN 2010205473530 U CN2010205473530 U CN 2010205473530U CN 201020547353 U CN201020547353 U CN 201020547353U CN 201786556 U CN201786556 U CN 201786556U
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- contact ball
- wind
- yawing mechanism
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a yaw mechanism of the wind power generator and the yaw control system applying the yaw mechanism, wherein the yaw mechanism comprises a bottom seat attached with the generator assembly, and three lateral boards arranged projecting outward on the outer lateral wall of the bottom seat. A pre-tension pressure adjusting device is fixed below each lateral board. The other end of the yaw motor is fixed with a speed reducer, and the output shaft of the speed reducer is connected with the friction wheel. A four-point-contact ball bearing is provided, and the end surface of the bottom of the bottom seat is fixed with the outer ring of the four-point-contact ball bearing. The outer ring of the four-point-contact ball bearing is attached to the top portion of the tower rack, and the friction wheel is in contact with the outer ring of the four-point-contact ball bearing. Compared with the prior art, the utility model has advantages that because of the adopted transmission manner of the friction wheel, the utility model has simple structural shape, convenient machining process, and features of stability and little impact in the working process in comparison with the transmission manner of gears usually adopted.
Description
Technical field
The utility model relates to a kind of Yawing mechanism of wind-driven generator and adopts the driftage control system of this Yawing mechanism.
Background technique
At present, Yawing mechanism commonly used has motor driving and hydraulic driving dual mode in the wind power generating set.For motor-driven Yawing mechanism, it is simple in structure, reliable, can make full use of the confined space, realize dispersed placement, three motors of normal employing drive three driving gears respectively, the interior circle or the cylindrical of four-point contact ball are made gear, finish yaw maneuver by the meshed transmission gear on driving gear and the four-point contact ball.Its shortcoming is because four-point contact ball boundary dimension is bigger, and its flank profil processing difficulties is impacted during meshed transmission gear simultaneously greatlyyer, if make or install bad, when the local stand under load of the gear teeth was excessive, the gear teeth can produce phenomenons such as the part fractures.Hydraulic driving mode displacement power is big, but has the Hydraulic Power Transmission System complexity, phenomenon such as non-linear, leakage.The control mode of yaw system often adopts PID control at present simultaneously, because the complexity of wind-power generating system, the foundation of system model is difficulty very, can accurately not control yaw system.
The model utility content
First technical problem to be solved in the utility model is not have impact, motion when providing a kind of motion at above-mentioned prior art steadily, the Yawing mechanism of the wind-driven generator that each element is easy to process.
Second technical problem to be solved in the utility model is to provide a kind of driftage control system that can accurately control above-mentioned inclined to one side mechanism at above-mentioned prior art.
The utility model solves the technological scheme that above-mentioned first technical problem adopted: the Yawing mechanism of this wind-driven generator is characterized in that: comprise
The base that links to each other with alternator assembly has three side plates that are provided with to outer lug on the outer side wall of base; Each side plate below is fixed with the preload pressure controlling device;
Described preload pressure controlling device comprises a pair of convexo-concave block with swallowtail shape that cooperatively interacts, and wherein dovetail projection and yaw motor one end are connected and fixed, and recessed of dovetail and baffle plate are connected and fixed, and have clearance space between dovetail projection and the baffle plate; One of stud is fixedlyed connected with dovetail projection screw thread, and described baffle plate is passed in the other end, and passes the outer stud of baffle plate and be provided with adjusting nut; The described stud that is located between dovetail projection and baffle plate is arranged with a spring outward;
The other end and the retarder of described yaw motor are fixed, and the output shaft of retarder links to each other with friction wheel;
Four-point contact ball, the inner ring of described base bottom end face and this four-point contact ball is fixed, and the outer ring of this four-point contact ball links to each other with tower top, and described friction wheel contacts with the outer ring of four-point contact ball.
As improvement, described base is a hemisphere, and described three side plates are evenly distributed on the outer side wall of base at interval according to 120 degree.
The matrix adopting steel of above-mentioned friction wheel, its outside one deck MC nylon material that covers.
Because the friction wheel transmission can be regulated by the preload pressure controlling device, apply certain preload pressure by this device, and when friction wheel or bearing outer ring generation wearing and tearing, regulate the friction wheel position, change preload pressure, thereby guarantee the proper functioning of friction wheel transmission.
The utility model solves above-mentioned second technological scheme that technical problem adopted: the driftage control system is characterized in that: comprise
One adopts the Yawing mechanism of said structure;
One is used to measure the Detecting element of wind direction signals;
One is used to calculate the computing element of the wind wheel axis deviation of directivity value of wind direction and wind energy conversion system, the signal output part of described Detecting element links to each other with a signal input part of this computing element, and the signal output part that described wind energy conversion system is used to export the wind wheel axial direction links to each other with another signal input part of this computing element;
One PLC controller; The output terminal of described computing element links to each other with an input end of this PLC controller, and this PLC controller output end links to each other with the yaw motor of described Yawing mechanism by a soft initiator;
One driftage counter is used to calculate the driftage number of times of described Yawing mechanism, and its signal input part links to each other with described Yawing mechanism; Its signal output part links to each other with another input end of described PLC controller.
Detect by Detecting element, when wind direction and angle of wind wheel axis runout, deviation signal is passed to PLC, after detecting according to the driftage counter, PLC feeds back to the numerical value of controller, calculate the angle of wind direction signals and position, cabin, thereby need to determine whether adjustment cabin direction and whichaway adjustment can aim at wind direction as early as possible.When needs were adjusted direction, the PLC output order drove yaw motor (braking of band dead electricity), with the direction adjustment of head court over against wind, and writes down the angle of current adjustment, and adjusting finishes the motor stall and start driftage brakes.Be used to calculate the driftage number of times of described Yawing mechanism simultaneously, the record number of turns that yaw system turned round when the driftage number of turns of yaw system reaches imposing a condition of counter, then triggers the automatic cable-releasing action.
Compared with prior art, advantage of the present utility model is: 1, the gear-driven form of using always with respect to Yawing mechanism, owing to adopt the friction wheel type of belt drive, its structure shape is simple, and is easy to process, has the characteristics that working procedure is steady, impact is little simultaneously; 2, owing to have the preload pressure controlling device,, guaranteed finishing smoothly of yaw maneuver by setting suitable preload pressure; 3, because friction wheel adopts the MC nylon material, have in light weight, intensity is high, shock resistance, antivibration, wear-resisting, the anticorrosion and multiple special performance that insulate, its wear resistance has guaranteed that the friction wheel wear extent is little, need not often regulate preload pressure.
Description of drawings
Fig. 1 is the structural representation of Yawing mechanism among the utility model embodiment;
Fig. 2 is the structural representation of preload pressure controlling device among the utility model embodiment;
Fig. 3 is the structured flowchart of driftage control system among the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
The utility model at first provides a kind of Yawing mechanism of wind-driven generator, see also illustrated in figures 1 and 2, it comprises the domed base 1 that links to each other with alternator assembly, base 1 links to each other with alternator assembly by the tapped hole 7 of left end face, is evenly distributed with three side plates 13 that are provided with to outer lug at interval according to 120 degree on the outer side wall of base 1; Each side plate 13 below is fixed with the preload pressure controlling device by bolt 6; Described preload pressure controlling device comprises a pair of convexo-concave block with swallowtail shape that cooperatively interacts, and wherein dovetail projection 8 and yaw motor 5 one ends are connected and fixed, and recessed 14 of dovetail and baffle plate 9 are connected and fixed, and have clearance space between dovetail projection 8 and the baffle plate 9; 11 1 of stud are fixedlyed connected with dovetail projection 8 screw threads, and described baffle plate 9 is passed in the other end, and pass the outer stud of baffle plate and be provided with adjusting nut 12; The described stud that is located in 9 on dovetail projection 8 and baffle plate is arranged with a spring 10 outward; The other end of described yaw motor 5 and retarder 4 are fixing, and the output shaft of retarder 4 links to each other with friction wheel 3; The inner ring of described base 1 bottom end face and four-point contact ball 2 is fixed, and the outer ring that this four-point contact ball 2 holds links to each other with tower top, and described friction wheel 3 contacts with the outer ring of four-point contact ball 2.
When the friction wheel transmission produces the trace wearing and tearing, regulate preload pressure automatically by spring force, guarantee that the outer ring of friction wheel 3 and four-point contact ball 2 compresses mutually.When friction wheel transmission wear extent was big, turn adjusting nut 12 made the dovetail projection move along the preload pressure direction, changed preload pressure, made the outer ring of friction wheel 3 energy and four-point contact ball 2 compress mutually, guaranteed finishing smoothly of yaw maneuver.
The utility model also provides a kind of driftage control system, and it comprises the Yawing mechanism of said structure, and one is used to measure the Detecting element of wind direction signals; One is used to calculate the computing element of the wind wheel axis deviation of directivity value of wind direction and wind energy conversion system, the signal output part of described Detecting element links to each other with a signal input part of this computing element, and the signal output part that described wind energy conversion system is used to export the wind wheel axial direction links to each other with another signal input part of this computing element; One PLC controller; The output terminal of described computing element links to each other with an input end of this PLC controller, and this PLC controller output end links to each other with the yaw motor of described Yawing mechanism by a soft initiator; One driftage counter is used to calculate the driftage number of times of described Yawing mechanism, and its signal input part links to each other with described Yawing mechanism; Its signal output part links to each other with another input end of described PLC controller.
Computing element is passed to the PLC controller with the deviation signal that calculates, the PLC controller while is according to the numerical value of the measurement of driftage counter, calculate the angle of wind direction signals and position, cabin, thereby need to determine whether adjustment cabin direction and whichaway adjustment can aim at wind direction as early as possible.When needs were adjusted direction, PLC controller output order drove yaw motor, with the direction adjustment of head court over against wind, and write down the angle of current adjustment, and adjusting finishes the motor stall and start driftage brakes.Soft initiator can be realized the level and smooth startup of yaw motor, reduces inrush current, and soft initiator also provides soft stop function, the torque shock ends of avoiding free parking to cause simultaneously.
Claims (3)
1. the Yawing mechanism of a wind-driven generator is characterized in that: comprise
The base that links to each other with alternator assembly has three side plates that are provided with to outer lug on the outer side wall of base; Each side plate below is fixed with the preload pressure controlling device;
Described preload pressure controlling device comprises a pair of convexo-concave block with swallowtail shape that cooperatively interacts, and wherein dovetail projection and yaw motor one end are connected and fixed, and recessed of dovetail and baffle plate are connected and fixed, and have clearance space between dovetail projection and the baffle plate; One of stud is fixedlyed connected with dovetail projection screw thread, and described baffle plate is passed in the other end, and passes the outer stud of baffle plate and be provided with adjusting nut; The described stud that is located between dovetail projection and baffle plate is arranged with a spring outward;
The other end and the retarder of described yaw motor are fixed, and the output shaft of retarder links to each other with friction wheel;
Four-point contact ball, the inner ring of described base bottom end face and this four-point contact ball is fixed, and the outer ring of this four-point contact ball links to each other with tower top, and described friction wheel contacts with the outer ring of four-point contact ball.
2. the Yawing mechanism of wind-driven generator according to claim 1, it is characterized in that: described base is a hemisphere, described three side plates are evenly distributed on the outer side wall of base at interval according to 120 degree.
3. one kind is adopted the driftage control system of Yawing mechanism according to claim 1, it is characterized in that: comprise
One adopts Yawing mechanism according to claim 1;
One is used to measure the Detecting element of wind direction signals;
One is used to calculate the computing element of the wind wheel axis deviation of directivity value of wind direction and wind energy conversion system, the signal output part of described Detecting element links to each other with a signal input part of this computing element, and the signal output part that described wind energy conversion system is used to export the wind wheel axial direction links to each other with another signal input part of this computing element;
One PLC controller; The output terminal of described computing element links to each other with an input end of this PLC controller, and this PLC controller output end links to each other with the yaw motor of described Yawing mechanism by a soft initiator;
One driftage counter is used to calculate the driftage number of times of described Yawing mechanism, and its signal input part links to each other with described Yawing mechanism; Its signal output part links to each other with another input end of described PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205473530U CN201786556U (en) | 2010-09-26 | 2010-09-26 | Yaw mechanism of the wind power generator and yaw control system applying the yaw mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205473530U CN201786556U (en) | 2010-09-26 | 2010-09-26 | Yaw mechanism of the wind power generator and yaw control system applying the yaw mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN201786556U true CN201786556U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205473530U Expired - Lifetime CN201786556U (en) | 2010-09-26 | 2010-09-26 | Yaw mechanism of the wind power generator and yaw control system applying the yaw mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN201786556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963131A (en) * | 2010-09-26 | 2011-02-02 | 张舜德 | Yawing mechanism for wind driven generator, yawing control system and control method |
| CN106762455A (en) * | 2016-12-26 | 2017-05-31 | 国电联合动力技术(连云港)有限公司 | A kind of test device and method of testing of wind driven generator unit yaw system operation |
-
2010
- 2010-09-26 CN CN2010205473530U patent/CN201786556U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963131A (en) * | 2010-09-26 | 2011-02-02 | 张舜德 | Yawing mechanism for wind driven generator, yawing control system and control method |
| CN101963131B (en) * | 2010-09-26 | 2012-10-24 | 张舜德 | Yawing mechanism for wind driven generator, yawing control system and control method |
| CN106762455A (en) * | 2016-12-26 | 2017-05-31 | 国电联合动力技术(连云港)有限公司 | A kind of test device and method of testing of wind driven generator unit yaw system operation |
| CN106762455B (en) * | 2016-12-26 | 2024-03-29 | 国能联合动力技术(连云港)有限公司 | Testing device and testing method for operation of yaw system of wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |