CN201474859U - Wind generator set torsional cable protective device of megawatt level - Google Patents
Wind generator set torsional cable protective device of megawatt level Download PDFInfo
- Publication number
- CN201474859U CN201474859U CN2009201402374U CN200920140237U CN201474859U CN 201474859 U CN201474859 U CN 201474859U CN 2009201402374 U CN2009201402374 U CN 2009201402374U CN 200920140237 U CN200920140237 U CN 200920140237U CN 201474859 U CN201474859 U CN 201474859U
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- China
- Prior art keywords
- switch
- cam
- controller
- cable
- cabin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
Abstract
The utility model provides a wind generator set torsional cable protective device of megawatt level, comprising a potentiometer and a cam controller, wherein the cam controller includes two pairs of cam switches: a clockwise deflection cam switch and an anti-clockwise deflection cam switch; the normally-open contacts of the switches are connected in parallel to provide the signal for the controller while the normally closed contacts are serially connected to access to a system safety link; in addition, an input shaft of the cam controller is equipped with a nylon gear which is engaged with a yaw bearing gear; the wind generator set torsional cable protective device replaces the traditional torsional cable switch with the cam switch so as to conveniently realize the positioning adjustment of the cam controller switch and simultaneously reduce the cost.
Description
Technical field
What the utility model related to a kind of MW class wind turbine group turns round the cable protection device, belongs to technical field of wind power generation.
Background technique
Turn round the device that the cable protection device is the yaw system indispensability; because the yaw maneuver of yaw system can cause the conjunction cable generation twisting between cabin and the pylon, so need setting counting device relevant or similar program that the cable layup degree is detected with turning round the cable direction.Comparatively general way is to use the cabin position transducer to detect the real-time angle of cabin driftage, unties the mooring rope according to its testing result execution in allowing range of deflection angles.Blower fan commonly used is turned round cable protection and has generally all been adopted second class protection, and wherein first class of protection has following several mode usually:
First, use has the cam controller of three pairs of switches, comprise clockwise deflector cam switch (being the right avertence switch), neutral position switch and counterclockwise deflector cam switch (being the left avertence switch), when the cabin of wind-driven generator go off course clockwise or counterclockwise or rotate reach certain circle (as 2 the circle), right avertence or left avertence switch are touched, and computer is carried out the program of untying the mooring rope accordingly after receiving signal.
The second, use two have certain intervals (as two teeth at interval) near switch, when yaw maneuver, these two can provide signal to computer near switch, the counter of built-in computer can write down the number of teeth on the driftage gear ring of process, carry out the angle that data operation is discerned driftage by computer again, carry out the program of untying the mooring rope accordingly reach the limit value of left avertence or right avertence when deflection angle after.
The 3rd, utilize the potentiometer in the cam controller to detect, the VDC that adds 10VD by two ends at potentiometer, the resistance of potentiometer centre tap opposite end changes thereupon when the position, cabin changes, control program is converted out the deflection angle of cabin with respect to initial position according to voltage change, can carry out by the testing result of cabin position transducer in the range of deflection angles that allows and untie the mooring rope.
Can carry out the function of untying the mooring rope accordingly by above-mentioned first class of protection mode, make unit recover normal; But when first class of protection lost efficacy (as breaking down) fail to play due effect, blower fan continues to turn round cable and reaches capacity after (as 2.5 circles), turns round the cable switch motion, the unit emergency shutdown.But employing is turned round the cable switch and is turned round having the following disadvantages of cable protection:
One, turns round the cable switch and must arrive the scene and just can install, need belong to high-lift operation installing on the inwall of tower tube top and on the cable that dangles during installation, install inconvenient;
Two, because the soft degree of wire rope is bad with the weight weight-matched, the bunch of cables girth that dangles reason such as is not fixed and is caused locating inaccurate easily, causes easily and botches routines and produce greater loss;
Three, the action of turning round the cable switch is to realize by be wrapped in the draw ring that the back pulling that reaches capacity on the bunch of cables turns round on the cable switch at wire rope fixing on the bunch of cables that dangles.Draw ring is rubbed by wire rope easily, makes to turn round the cable switch and lose protective action, thereby causes the interruption of service of blower fan.The instant wire rope that adopts the band sheath also can only prolong the time that metal ring is rubbed, and can not deal with problems at all.
Summary of the invention
Turn round that the cable switch is protected the installation inconvenience of existence, the location is inaccurate and problem such as protection inefficacy for solving above-mentioned when blower fan unties the mooring rope process, the application, the utility model provide a kind of novel be applicable to the MW class wind turbine group turn round the cable protection device.
The cable protection device of turning round of the wind power generating set that the utility model relates to comprises potentiometer and cam controller.Wherein cam controller comprises 2 pairs of cam switches, i.e. deflector cam switch (being the right avertence switch) and deflector cam switch (left avertence switch) clockwise counterclockwise.The normally opened contact parallel connection of right avertence switch and left avertence switch provides signal for controller, and the series connection of the normally-closed contact of right avertence and left avertence switch inside inserts the security of system chain.
On the input shaft of cam controller nylon gear is housed, this nylon gear is meshed with the driftage Bearing gear.Speed ratio between the cam of nylon gear and cam switch is 200 to 1, be that nylon gear changes 200 circles, cam changes 1 circle, by the quantity (143 tooth) of the tooth that cogs of driftage bearing, the number of teeth (10 tooth) of nylon gear, be 14.3 circles thereby can calculate the number of turns of revolving the nylon gear rotation of turning around in the cabin.
During fan operation, potentiometer detects the angle of driftage, add the VDC of 10V by the two ends at potentiometer, the resistance of potentiometer centre tap opposite end changes thereupon when the position, cabin changes, and can convert out the deflection angle of cabin with respect to initial position according to voltage change.When the cabin at deflection angle clockwise or counterclockwise in admissible scope when (as 2 circles), determine the direction of untying the mooring rope of going off course according to the airport position signal that cam controller provides, discharge the driftage brake, driftage relay amplified current signal, the adhesive of driftage contactor, the rotation of driving yaw motor drives cabin rotation on the driftage fluted disc and makes the cabin driftage, thereby realizes untying the mooring rope.When the driftage fluted disc rotated, nylon gear also rotated thereupon.
If above-mentioned first class of protection lost efficacy, when reaching capacity (as 2.5 circles) when the cabin of wind power generating set turns clockwise, nylon gear is rotated counterclockwise 36 circles, and the initial position of right avertence switch is adjusted to this position in advance.The normally-closed contact of right avertence switch disconnects, and makes theft-resistant link chain disconnect the unit emergency shutdown; And the normally opened contact closure of right avertence switch, computer begins to receive turns round the cable signal.Equally, when reaching capacity (as 2.5 circles) when the cabin is rotated counterclockwise, nylon gear is rotated counterclockwise 36 circles, and the initial position of left avertence cam is adjusted to this position in advance.At this moment, the normally-closed contact of left avertence switch disconnects, and makes theft-resistant link chain disconnect the unit emergency shutdown; And the normally opened contact closure of left avertence switch, computer begins to receive turns round the cable signal.
The beneficial effects of the utility model are: the right avertence switch is in parallel with the normally opened contact of left avertence switch for controller provides signal, can realize the location adjustment of cam controller switch easily; Enter the security of system chain and the right avertence switch connected with the normally-closed contact of left avertence switch, on control circuit, can reach with turning round originally and turn round the equal effect of cable switch in the cable protection device.And this model utility has been removed the installation of turning round the cable switch, has reduced cost; It is more accurate and not fragile to turn round the cable protection location on the other hand relatively.
Description of drawings
Fig. 1 is a cam controller of the present utility model contact elementary diagram;
Fig. 2 is the cable first class of protection flow chart of turning round of the present utility model;
Fig. 3 is the cable second class protection flow chart of turning round of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are done an explanation:
As shown in Figure 1, with the normally opened contact 1 of the clockwise deflector cam switch (being the right avertence switch) of cam controller 7 and counterclockwise normally opened contact 3 parallel connections of deflector cam switch (left avertence switch) provide signal for cam controller 7, and with the normally-closed contact 2 of right avertence switch and the normally-closed contact 4 series connection security system theft-resistant link chains 5 of left avertence switch.The VDC that adds 10V at the two ends of potentiometer 6, the resistance of potentiometer 6 centre tap opposite ends changes thereupon when the position, cabin changes, and converts out the deflection angle of cabin with respect to initial position according to voltage change.
As shown in Figure 2, during fan operation, detect the real-time angle of going off course in the cabin by potentiometer, when its deflection angle of cabin enclosed less than 2, cam controller provided the cabin position signal.When the clockwise deflection in cabin reaches limit value 2 circles, carry out and counterclockwise untie the mooring rope; When the counterclockwise deflection in cabin reaches limit value 2 circles, carry out clockwise direction and untie the mooring rope.Then, discharge the driftage brake, driftage relay amplified current signal, the adhesive of driftage contactor drives yaw motor, drives nylon gear and rotates, and the driftage fluted disc rotates and is gone off course clockwise or counterclockwise in the cabin, thereby realizes untying the mooring rope.
As shown in Figure 3, enclose when nylon gear counterclockwise rotates 36, when the cabin of wind power generating set turned clockwise 2.5 circles, deflector cam will touch its corresponding right avertence switch clockwise.At this moment, the normally-closed contact of right avertence switch disconnects, and makes theft-resistant link chain disconnect the unit emergency shutdown; And the normally opened contact closure of right avertence switch, computer begins to receive turns round the cable signal.Equally, when nylon gear clockwise direction rotation 36 circles, when the cabin of wind power generating set was rotated counterclockwise 2.5 circles, counterclockwise deflector cam will touch its corresponding left avertence switch.At this moment, the normally-closed contact of left avertence switch disconnects, and makes theft-resistant link chain disconnect the unit emergency shutdown; And the normally opened contact closure of left avertence switch, computer begins to receive turns round the cable signal.
Claims (2)
1. a MW class wind turbine group is turned round the cable protection device; comprise potentiometer and cam controller; wherein; cam controller comprises 2 pairs of cam switches, clockwise deflector cam switch, i.e. right avertence switch; with counterclockwise deflector cam switch; be the left avertence switch, it is characterized in that the normally opened contact Access Control System in parallel of right avertence switch and left avertence switch, and the series connection of the normally-closed contact of right avertence and left avertence switch insert the security of system chain.
2. MW class wind turbine group as claimed in claim 1 is turned round the cable protection device, it is characterized in that on the input shaft of cam controller nylon gear being housed, and it is meshed with the driftage Bearing gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201402374U CN201474859U (en) | 2009-06-10 | 2009-06-10 | Wind generator set torsional cable protective device of megawatt level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201402374U CN201474859U (en) | 2009-06-10 | 2009-06-10 | Wind generator set torsional cable protective device of megawatt level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474859U true CN201474859U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201402374U Expired - Lifetime CN201474859U (en) | 2009-06-10 | 2009-06-10 | Wind generator set torsional cable protective device of megawatt level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474859U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758743A (en) * | 2012-07-30 | 2012-10-31 | 华锐风电科技集团（上海）有限公司 | Wind power generator yawing cable-twisting protection method and device |
| CN103184973A (en) * | 2011-12-30 | 2013-07-03 | 华锐风电科技(集团)股份有限公司 | Wind turbine generator set yawing system and wind turbine generator set |
| CN103967720A (en) * | 2014-04-08 | 2014-08-06 | 大唐国际发电股份有限公司张家口发电厂 | Automatic check device for twisted cable sensor of yaw system of wind turbine generator system |
| CN108194267A (en) * | 2017-12-29 | 2018-06-22 | 华润电力风能（汕头潮南）有限公司 | Fan yaw corrects system |
| CN108223272A (en) * | 2017-12-29 | 2018-06-29 | 华润电力风能（汕头潮南）有限公司 | Fan yaw corrects system |
| US10934998B2 (en) | 2016-01-13 | 2021-03-02 | Vestas Wind Systems A/S | Yaw sensor for a wind turbine |
-
2009
- 2009-06-10 CN CN2009201402374U patent/CN201474859U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184973A (en) * | 2011-12-30 | 2013-07-03 | 华锐风电科技(集团)股份有限公司 | Wind turbine generator set yawing system and wind turbine generator set |
| CN103184973B (en) * | 2011-12-30 | 2015-09-16 | 华锐风电科技(集团)股份有限公司 | Wind driven generator unit yaw system and wind power generating set |
| CN102758743A (en) * | 2012-07-30 | 2012-10-31 | 华锐风电科技集团（上海）有限公司 | Wind power generator yawing cable-twisting protection method and device |
| CN102758743B (en) * | 2012-07-30 | 2014-10-29 | 华锐风电科技集团（上海）有限公司 | Wind power generator yawing cable-twisting protection method and device |
| CN103967720A (en) * | 2014-04-08 | 2014-08-06 | 大唐国际发电股份有限公司张家口发电厂 | Automatic check device for twisted cable sensor of yaw system of wind turbine generator system |
| CN103967720B (en) * | 2014-04-08 | 2022-08-12 | 大唐国际发电股份有限公司张家口发电厂 | Automatic calibration device for cable twisting sensor of yaw system of wind generating set |
| US10934998B2 (en) | 2016-01-13 | 2021-03-02 | Vestas Wind Systems A/S | Yaw sensor for a wind turbine |
| CN108194267A (en) * | 2017-12-29 | 2018-06-22 | 华润电力风能（汕头潮南）有限公司 | Fan yaw corrects system |
| CN108223272A (en) * | 2017-12-29 | 2018-06-29 | 华润电力风能（汕头潮南）有限公司 | Fan yaw corrects system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sky and wind blades Jiangsu Co., Ltd. Assignor: Xinjiang Jinfeng Technology Co., Ltd. Contract record no.: 2011320000683 Denomination of utility model: Wind generator set torsional cable protective device of megawatt level Granted publication date: 20100519 License type: Exclusive License Record date: 20110504 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |