CN102758743B - Wind power generator yawing cable-twisting protection method and device - Google Patents
Wind power generator yawing cable-twisting protection method and device Download PDFInfo
- Publication number
- CN102758743B CN102758743B CN201210269178.7A CN201210269178A CN102758743B CN 102758743 B CN102758743 B CN 102758743B CN 201210269178 A CN201210269178 A CN 201210269178A CN 102758743 B CN102758743 B CN 102758743B
- Authority
- CN
- China
- Prior art keywords
- contact
- flip flop
- flop equipment
- cable
- mooring rope
- Prior art date
- 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 - Fee Related
Links
Classifications
-
- Y02E10/722—
Landscapes
- Wind Motors (AREA)
Abstract
The invention discloses a wind power generator yawing cable-twisting protection device, which comprises a plurality of triggering devices rotating along with a yawing gear ring and a plurality of mechanical contacts corresponding to the plurality of triggering devices, wherein the plurality of mechanical contacts comprise cable loosening contacts and limiting contacts, and the cable loosening contacts are first triggered by the corresponding triggering devices relative to the limiting contacts; and in addition, the plurality of triggering devices are integrally arranged. According to the wind power generator yawing cable-twisting protection device, the five triggering devices are solidified together to protect a yawing system; and the wind power generator yawing cable-twisting protection device is simple in structure, high in reliability and convenient for system maintenance and provides a favorable protection for yawing cable-twisting. The invention further discloses a wind power generation yawing cable-twisting protection method using the wind power generator yawing cable-twisting protection device.
Description
Technical field
The present invention relates to technical field of wind power generation, be specifically related to wind-powered electricity generation unit and turn round guard method and the device of cable.
Background technique
Wind power generating set need to be protected each key components and parts in the time of operation, to ensure the safety of wind power generating set.Turn round cable system for driftage, more need a kind of reliable protective system to realize the protection to driftage cable.Wind driven generator yaw is turned round cable protection and is mainly comprised six aspects:
1, cable reset is turned round in driftage, when cable is in complete plumbness, neither, to turning round counterclockwise cable, does not also turn round cable to clockwise direction, and yaw system is turned round cable angle and made zero;
2, the demonstration of cable direction is turned round in driftage, shows cable direction of twist: turn round cable or turn round cable to counter clockwise direction to clockwise direction;
3, the protection of cable limit on the left is turned round in driftage, and yaw system, toward counterclockwise driftage, reaches after maximum yaw angle settings, and generator protection is shut down, and needs could recover after human intervention;
4, driftage limit on the left solution cable protection, when it triggers, expression yaw system is turned round cable angle and has been approached counterclockwise limiting value; need to untie the mooring rope toward clockwise direction driftage; otherwise if continued to counterclockwise driftage, unit is about to trigger driftage and turns round the protection of cable limit on the left and shut down.
5, the protection of cable limit on the right-right-hand limit is turned round in driftage, and yaw system is gone off course toward clockwise direction, reaches after maximum yaw angle settings, and generator protection is shut down, and needs could recover after human intervention;
6, driftage limit on the right-right-hand limit solution cable protection, when it triggers, expression yaw system is turned round cable angle and has been approached clockwise direction limiting value; need to untie the mooring rope toward counterclockwise driftage; otherwise if continued to clockwise direction driftage, unit is about to trigger driftage and turns round the protection of cable limit on the right-right-hand limit and shut down.
At present, main technical protection scheme is, with cam, 6 corresponding digital quantity protections are set in the industry, and these 6 digital quantities and cam are mechanically corresponding.Cam and yawing gear ring are meshing; in the time that yaw system starts driftage, cam is being followed and is being rotated, and cable twists into corresponding angle can trigger corresponding protection; corresponding digital quantity is reacted to wind-driven generator master control system, and master control system is made corresponding protective measure accordingly.
Turn round in cable protection scheme in the driftage using at present; separately independent regulation of each protection; although arrange flexibly; can adjust according to actual conditions the setting of each protection value, but it is many that node is set, manual operation error is large; poor stability; require highly to debugging, attendant, later maintenance amount is large, and maintenance cost is high.
Summary of the invention
Object of the present invention is exactly in order to overcome above-mentioned the deficiencies in the prior art, provide a kind of wind driven generator yaw to turn round cable protection device, it is solidified togather five flip flop equipments yaw system is protected, simple in structure, reliability is high, be convenient to system maintenance, turn round cable for driftage good protection is provided; The present invention also provides a kind of wind driven generator yaw that uses this protective gear to turn round cable protection method.
In order to achieve the above object, wind driven generator yaw of the present invention is turned round cable protection method and is comprised the steps:
1) multiple flip flop equipments and corresponding multiple mechanical contacts are set, so that the each flip flop equipment in described multiple flip flop equipment triggers the mechanical contact of correspondence in described multiple mechanical contact while rotate with yawing gear ring;
2) untie the mooring rope contact and the limit contact in described multiple mechanical contact is set in the time that the driftage of cable system is turned round in driftage, and the contact of untying the mooring rope is positioned at the position being first triggered, the position being triggered after limit contact is positioned at;
3), after the described contact of untying the mooring rope is triggered by corresponding flip flop equipment, make driftage turn round the operation of untying the mooring rope of going off course of cable system;
4) after described limit contact is triggered by corresponding flip flop equipment, make the protected shutdown of wind-powered electricity generation unit.
Wherein, described in the contact of untying the mooring rope comprise contact and the right side contact of untying the mooring rope of untying the mooring rope, a left side, described limit contact comprises limit on the left contact and limit on the right-right-hand limit contact.
Wherein, in described multiple mechanical contacts, also comprise reset and turn round cable direction showing contact, and after being triggered by corresponding flip flop equipment, can go off course and turn round the reset of cable and the demonstration of cable direction of twist.
Preferably, described multiple flip flop equipment is wholely set.
Preferably, the multiple flip flop equipments that are wholely set described in process through entirety by a single piece.
Preferably, the multiple flip flop equipments that are wholely set described in are by fixing as one multiple independent flip flop equipments to form.
Preferably, described reset shows that with direction contact is corresponding with the same flip flop equipment in described multiple flip flop equipments.
Wind driven generator yaw of the present invention is turned round cable protection device and is comprised: with multiple flip flop equipments of yawing gear ring rotation; Corresponding to multiple mechanical contacts of described multiple flip flop equipments; Wherein, described multiple mechanical contacts comprise untie the mooring rope contact and limit contact, and with respect to described limit contact, the contact of untying the mooring rope is first triggered by corresponding flip flop equipment.
Wherein, described multiple flip flop equipment is arranged successively along same axis, and the quadrant of described multiple flip flop equipment for forming along different direction different rotation angle around described axis respectively in multiple planes of same level, wherein, the central angle of the flip flop equipment corresponding with the described contact of untying the mooring rope is greater than the central angle of the flip flop equipment corresponding with described limit contact.
Preferably, described multiple flip flop equipment is wholely set.
Preferably, the multiple flip flop equipments that are wholely set described in process through entirety by a single piece.
Preferably, the multiple flip flop equipments that are wholely set described in are by fixing as one multiple independent flip flop equipments to form.
Preferably, in described multiple flip flop equipments of arranging successively along described axis first, the 4th and the 5th flip flop equipment are for forming along clockwise direction rotation around described axis, second, third flip flop equipment is for forming along counterclockwise rotation around described axis, and described the 3rd, the 5th flip flop equipment is corresponding with the described contact middle left and right of the untying the mooring rope contact of untying the mooring rope respectively, described second, the 4th flip flop equipment is corresponding with middle left and right limit contact, described limit contact respectively.
Particularly, described the first flip flop equipment shows that with reset and direction in described multiple mechanical contacts contact is corresponding, and the central angle of described the first flip flop equipment is 180 °.
Preferably, described reset and direction show when contact is triggered by the first flip flop equipment, are gone off course and are turned round cable reset by rising edge or trailing edge, are gone off course and are turned round the demonstration of cable direction by high level or low level.
With respect to prior art, wind driven generator yaw of the present invention is turned round cable protection device and is had following beneficial effect:
1) driftage of the present invention is turned round cable protection device and is become one affixed multiple flip flop equipments, make all flip flop equipments regulating the adjusting that links together of yaw system when protection, therefore reduce manual operation error, improve the reliability of system works, reduce maintenance cost, improved the efficiency of debugging, maintenance;
2) the present invention is provided with the multiple mechanical contacts corresponding with multiple flip flop equipments difference; the position of contact in being first triggered of wherein untying the mooring rope; and limit contact in after the position that is triggered; therefore the yaw system protection of first untying the mooring rope before limit protection; increase the stability of system, improved the protective value to wind-powered electricity generation unit.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is that wind driven generator yaw of the present invention is turned round cable protection apparatus structure schematic diagram;
Fig. 2 is the plan view of multiple flip flop equipments in Fig. 1;
Fig. 3 is the plan view of multiple flip flop equipments in Fig. 1;
Fig. 4 is the left view of multiple flip flop equipments in Fig. 1.
Reference character: 1-reset and direction show contact; 2-limit on the left contact; The 3-contact of untying the mooring rope on a left side; 4-limit on the right-right-hand limit contact; The 5-contact of untying the mooring rope on the right side; 6-the first flip flop equipment; 7-the second flip flop equipment; 8-the 3rd flip flop equipment; 9-the 4th flip flop equipment; 10-the 5th flip flop equipment.
Embodiment
As Figure 1-4, turn round cable protection apparatus structure schematic diagram for wind driven generator yaw of the present invention, it comprises: with multiple flip flop equipments of yawing gear ring rotation; Corresponding to multiple mechanical contacts of multiple flip flop equipments; Wherein, multiple mechanical contacts comprise untie the mooring rope contact and limit contact, and with respect to limit contact, the contact of untying the mooring rope is first triggered by corresponding flip flop equipment.
Concrete, as shown in Figure 1, 2, wind driven generator yaw is turned round cable protection device and is comprised five flip flop equipments 6,7,8,9,10 that rotate with yawing gear ring and distinguish corresponding five mechanical contacts 1,2,3,4,5 with five flip flop equipments.Wherein, five flip flop equipments are arranged successively and form one by affixed mode along same axis X, and five flip flop equipments are five quadrants that plane forms along different direction different rotation angle around axis X respectively in same level.In five flip flop equipments, the first, the 4th and the 5th flip flop equipment 6,9,10 rotates and forms along the clockwise direction shown in Fig. 1 around axis X for respective planes, and second, third flip flop equipment 7,8 is that respective planes forms along the counter clockwise direction rotation shown in Fig. 1 around axis X.In addition, multiple flip flop equipments can also be made through entirety processing by a single piece.
Wherein, as shown in Figure 1, the mechanical contact corresponding with above-mentioned five flip flop equipments of arranging successively along axis X is followed successively by: reset and direction show contact 1, limit on the left contact 2, left side contact 3, limit on the right-right-hand limit contact 4 and the right side contact 5 of untying the mooring rope of untying the mooring rope, and central angle corresponding with the left and right contact of untying the mooring rope the 3rd, the 5th flip flop equipment is greater than and the left and right limit contact central angle of corresponding second, the 4th flip flop equipment respectively, and the central angle of the first flip flop equipment 6 is 180 °.Therefore when five flip flop equipments with yawing gear ring along counter clockwise direction when driftage shown in Fig. 2, the 3rd flip flop equipment 8 first backs down contact 3 of untying the mooring rope, a left side corresponding with it, therefore yaw system need go off course to untie the mooring rope to the clockwise direction shown in Fig. 2; If now yaw system continues driftage in the counterclockwise direction; now the second flip flop equipment 7 can back down limit on the left corresponding with it contact 2; now wind-powered electricity generation unit is because triggering this protected shutdown in limit on the left contact, and after compressor emergency shutdown, must after human intervention, just can resume work.Equally, when five flip flop equipments with yawing gear ring along clockwise direction when driftage shown in Fig. 2, the 5th flip flop equipment 10 first backs down contact 5 of untying the mooring rope, the right side corresponding with it, therefore yaw system need go off course to untie the mooring rope to the counter clockwise direction shown in Fig. 2; If now yaw system continues driftage along clockwise direction; now the 4th flip flop equipment 9 can back down limit on the right-right-hand limit corresponding with it contact 4; now wind-powered electricity generation unit is because triggering this protected shutdown in limit on the right-right-hand limit contact, and after compressor emergency shutdown, must after human intervention, just can resume work.
From above-mentioned; the left and right solution cable protection of yaw system is before left and right limit protection; therefore no matter yaw system is along going off course clockwise or counterclockwise shown in Fig. 2; capital was first triggered and is separated cable protection before triggering limit protection; therefore strong increase the stability of system, and can also effectively turn round the cable limit to cable and protect.
Wherein, the first flip flop equipment 6 shows that with reset and direction in five mechanical contacts contact 1 is corresponding, when cable is during in complete plumbness, reset and direction show that contact 1 triggered by the first flip flop equipment 6 or just departed from triggering, now yaw system is neither turned round cable to the counter clockwise direction shown in Fig. 2, also do not turn round cable to clockwise direction, therefore go off course and turn round cable reset by rising edge or trailing edge; If cable is turned round cable to the counter clockwise direction shown in Fig. 2 or clockwise direction, go off course and turn round the demonstration of cable direction by high level or low level, as turned round cable to counter clockwise direction, referring to Fig. 1, because described flip flop equipment 6 is semicircular cylinder, now this reset and direction show that contact 1 and the first flip flop equipment 6 still keep in touch, and keep high level state, go off course to turn round cable direction and be shown as left drift and turn round cable; And while turning round cable to clockwise direction, because described flip flop equipment 6 and described reset and direction show that contact 1 disengages, will be in low level state, display direction is that right avertence boat is turned round cable.
Preferably, five affixed becoming one of flip flop equipment, five protection node flip flop equipments are solidified togather yaw system are protected, and while regulating yaw system protection, all five flip flop equipments are interlock adjusting together all at every turn.Therefore increased the stability of system, having improved goes off course turns round the protective value of cable, has also improved debugging, maintenance efficiency simultaneously, has reduced the requirement to staff, has reduced cost of equipment maintenance.
The present invention also provides a kind of wind driven generator yaw to turn round cable protection method, and it comprises the steps:
1) five flip flop equipments and five corresponding mechanical contacts are set, so that the each flip flop equipment in five flip flop equipments triggers the mechanical contact of correspondence in five mechanical contacts while rotate with yawing gear ring;
2) untie the mooring rope contact and the limit contact in five mechanical contacts is set in the time that the driftage of cable system is turned round in driftage, and the contact of untying the mooring rope is positioned at the position being first triggered, the position being triggered after limit contact is positioned at;
3), after the contact of untying the mooring rope is triggered by corresponding flip flop equipment, make driftage turn round the operation of untying the mooring rope of going off course of cable system;
4) after limit contact is triggered by corresponding flip flop equipment, make the protected shutdown of wind-powered electricity generation unit.
Wherein, the contact of untying the mooring rope comprises contact and the right side contact of untying the mooring rope of untying the mooring rope, a left side, and limit contact comprises limit on the left contact and limit on the right-right-hand limit contact.
Wherein, in five mechanical contacts, also comprise reset and turn round cable direction showing contact, and after being triggered by corresponding flip flop equipment, can go off course and turn round the reset of cable and the demonstration of cable direction of twist.
Preferably, reset shows that with direction contact is corresponding with the same flip flop equipment in five flip flop equipments.Like this, only five nodes need be set can protect accordingly to wind-powered electricity generation unit, thereby has reduced the error of manual operation, and has reduced maintenance workload and the maintenance cost in later stage.
Although above the present invention is explained in detail; but the invention is not restricted to this; those skilled in the art can principle according to the present invention modify, and therefore, all various amendments of carrying out according to principle of the present invention all should be understood to fall into protection scope of the present invention.
Claims (9)
1. wind driven generator yaw is turned round a cable protection method, it is characterized in that, comprises the steps:
1) arrange with multiple flip flop equipments of yawing gear ring rotation and with untie the mooring rope multiple mechanical contacts of contact and limit contact of corresponding the comprising of described multiple flip flop equipments;
2) untie the mooring rope contact and the limit contact in described multiple mechanical contact is set to, and in the time that the driftage of cable system is turned round in driftage, the contact of untying the mooring rope is positioned at the position being first triggered, the position being triggered after limit contact is positioned at;
3) when the each flip flop equipment in described multiple flip flop equipment rotates with yawing gear ring, trigger mechanical contact corresponding in described multiple mechanical contact, after the contact of untying the mooring rope in described multiple mechanical contacts is triggered by corresponding flip flop equipment, make driftage turn round the operation of untying the mooring rope of going off course of cable system;
4) after the limit contact in multiple mechanical contacts is triggered by corresponding flip flop equipment, make the protected shutdown of wind-powered electricity generation unit;
Wherein, described multiple flip flop equipments are solidified togather, and the corresponding mechanical contact of each flip flop equipment.
2. wind driven generator yaw according to claim 1 is turned round cable protection method, it is characterized in that, described in the contact of untying the mooring rope comprise contact and the right side contact of untying the mooring rope of untying the mooring rope, a left side, described limit contact comprises limit on the left contact and limit on the right-right-hand limit contact.
3. wind driven generator yaw according to claim 1 and 2 is turned round cable protection method; it is characterized in that; in described multiple mechanical contact, also comprise reset and turn round cable direction and show contact; and after being triggered by corresponding flip flop equipment, can go off course and turn round the reset of cable and the demonstration of cable direction of twist.
4. wind driven generator yaw is turned round a cable protection device, it is characterized in that, comprising:
With multiple flip flop equipments of yawing gear ring rotation;
Corresponding to multiple mechanical contacts of untie the mooring rope comprising of described multiple flip flop equipments contact and limit contact;
Wherein, untie the mooring rope contact and limit contact in described multiple mechanical contacts are set to, and in the time that the driftage of cable system is turned round in driftage, the contact of untying the mooring rope is positioned at the position being first triggered, the position being triggered after limit contact is positioned at;
Wherein, each flip flop equipment in described multiple flip flop equipment triggers mechanical contact corresponding in described multiple mechanical contact while rotation with yawing gear ring, after the contact of untying the mooring rope in described multiple mechanical contacts is triggered by corresponding flip flop equipment, make driftage turn round the operation of untying the mooring rope of going off course of cable system;
Wherein, after the limit contact in described multiple mechanical contacts is triggered by corresponding flip flop equipment, make the protected shutdown of wind-powered electricity generation unit;
Wherein, described multiple flip flop equipments are solidified togather, and the corresponding mechanical contact of each flip flop equipment.
5. wind driven generator yaw according to claim 4 is turned round cable protection device, it is characterized in that, described multiple flip flop equipments are wholely set.
6. turn round cable protection device according to the wind driven generator yaw described in claim 4 or 5; it is characterized in that; described multiple flip flop equipment is arranged successively along same axis; and the quadrant (6,7,8,9,10) of described multiple flip flop equipment for forming along different direction different rotation angle around described axis respectively in multiple planes of same level; wherein, the central angle of the flip flop equipment corresponding with the described contact of untying the mooring rope is greater than the central angle of the flip flop equipment corresponding with described limit contact.
7. wind driven generator yaw according to claim 6 is turned round cable protection device, it is characterized in that, in described multiple flip flop equipments of arranging successively along described axis first, the the 4th and the 5th flip flop equipment (6, 9, 10) for forming along clockwise direction rotation around described axis, second, the 3rd flip flop equipment (7, 8) for forming along counterclockwise rotation around described axis, the and the described the 3rd, the 5th flip flop equipment (8, 10) respectively with the described contact of untying the mooring rope in left, the contact (3 of untying the mooring rope, the right side, 5) correspondence, described second, the 4th flip flop equipment (7, 9) respectively with described limit contact in left, limit on the right-right-hand limit contact (2, 4) correspondence.
8. wind driven generator yaw according to claim 7 is turned round cable protection device; it is characterized in that; described the first flip flop equipment (6) shows that with reset and direction in described multiple mechanical contacts contact (1) is corresponding, and the central angle of described the first flip flop equipment is 180 °.
9. wind driven generator yaw according to claim 8 is turned round cable protection device; it is characterized in that; described reset and direction show when (6) are triggered by described the first flip flop equipment in contact (1); go off course and turn round cable reset by rising edge or trailing edge, go off course and turn round the demonstration of cable direction by high level or low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269178.7A CN102758743B (en) | 2012-07-30 | 2012-07-30 | Wind power generator yawing cable-twisting protection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269178.7A CN102758743B (en) | 2012-07-30 | 2012-07-30 | Wind power generator yawing cable-twisting protection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758743A CN102758743A (en) | 2012-10-31 |
| CN102758743B true CN102758743B (en) | 2014-10-29 |
Family
ID=47053339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210269178.7A Expired - Fee Related CN102758743B (en) | 2012-07-30 | 2012-07-30 | Wind power generator yawing cable-twisting protection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758743B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351154B (en) * | 2015-11-26 | 2018-01-30 | 国电联合动力技术有限公司 | Wind turbines yaw system turns round cable protection device extreme position setting device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512762Y (en) * | 2001-12-21 | 2002-09-25 | 无锡震达机电有限公司 | Small hoist |
| CN2773877Y (en) * | 2005-01-21 | 2006-04-19 | 张臣义 | Assembled auxiliary switch |
| CN201474859U (en) * | 2009-06-10 | 2010-05-19 | 新疆金风科技股份有限公司 | Wind generator set torsional cable protective device of megawatt level |
| CN201671761U (en) * | 2010-04-21 | 2010-12-15 | 陕西科技大学 | Cable twist protective device of wind power generation unit |
-
2012
- 2012-07-30 CN CN201210269178.7A patent/CN102758743B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512762Y (en) * | 2001-12-21 | 2002-09-25 | 无锡震达机电有限公司 | Small hoist |
| CN2773877Y (en) * | 2005-01-21 | 2006-04-19 | 张臣义 | Assembled auxiliary switch |
| CN201474859U (en) * | 2009-06-10 | 2010-05-19 | 新疆金风科技股份有限公司 | Wind generator set torsional cable protective device of megawatt level |
| CN201671761U (en) * | 2010-04-21 | 2010-12-15 | 陕西科技大学 | Cable twist protective device of wind power generation unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102758743A (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2267303B1 (en) | Apparatus for operating a wind turbine during a loss of communication | |
| CN103089541B (en) | Wind generating set safety chain control system | |
| JP5581313B2 (en) | Pitch control device for windmill | |
| NZ599339A (en) | Floating vertical axis wind turbine with rotation by gyroscopic effect of counter rotating pairs of turbines | |
| KR20150101348A (en) | Yaw control system and yaw control method for wind turbine generator | |
| CN110017245B (en) | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system | |
| JP2018538635A (en) | Method of controlling machine or process with improved safety | |
| CN107605661B (en) | A kind of Wind turbines shutdown feathering method reducing load | |
| CN102828909A (en) | Method, device and system for safety protection used in failure of putting away oar of blade of wind turbine generator | |
| CN208040621U (en) | Pitch-controlled system and wind power generating set | |
| CN102758743B (en) | Wind power generator yawing cable-twisting protection method and device | |
| CN104405582A (en) | Wheel hub safety chain of megawatt wind generating set and control method thereof | |
| JP6362844B2 (en) | System and method for use in operating a power generation system | |
| CA2890839A1 (en) | Driving device | |
| TWI550188B (en) | Wind farm and method for controlling a wind farm | |
| CN104763582A (en) | Roller shutter door type load adjustment device and ocean energy generation device adopting same | |
| CN201474859U (en) | Wind generator set torsional cable protective device of megawatt level | |
| CN102734066B (en) | Wind power generator safety chain and wind power generator control system | |
| CN203098147U (en) | Wind generating set safety chain control system | |
| CN205445897U (en) | Use automation in aerogenerator device that unties mooring rope | |
| CN201874748U (en) | Centrifugal speed-regulating pitch variable mechanism of wind driven generator | |
| EP3058219B1 (en) | System for pitch control | |
| CN207454186U (en) | A kind of fan yaw and torsion cable detection device | |
| CN102522807A (en) | Control power supply of pitch system of wind driven generator | |
| CN102155354A (en) | Safety chain control system for wind generating set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |