CN102042180A - Wind-driven generator - Google Patents
Wind-driven generator Download PDFInfo
- Publication number
- CN102042180A CN102042180A CN201010605123XA CN201010605123A CN102042180A CN 102042180 A CN102042180 A CN 102042180A CN 201010605123X A CN201010605123X A CN 201010605123XA CN 201010605123 A CN201010605123 A CN 201010605123A CN 102042180 A CN102042180 A CN 102042180A
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- switch
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- driven generator
- pitch angle
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- 230000001960 triggered effect Effects 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000005619 thermoelectricity Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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 invention provides a wind-driven generator which comprises propellers, a hub, a tower, a propeller regulation device and a protection device, wherein the protection device comprises a second proximity switch, a second limit stop and a limit switch; the second proximity switch and the limit switch are fixed on a bracket of a propeller regulation motor; the second limit stop is fixed on a propeller regulation disc; and the second proximity switch is used for detecting whether each propeller is at a feathering shutdown angle. In the wind-driven generator provided by the invention, a rotary encoder is used for acquiring propeller parameters such as propeller rotation speed, propeller pitch angle and the like, and a first proximity switch or the second proximity switch is used for judging the accuracy of the propeller pitch angle of the propellers detected by the rotary encoder, so that failure of the rotary encoder can be found in time. Besides, the limit switch can be triggered when the propeller pitch angle is at a limit protection angle, thereby providing dual protection for the wind-driven generator, avoiding propeller breaking, runaway or other accidents, lowering the maintenance cost of the wind-driven generator and greatly reducing the triggering frequency of the limit switch.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly, relate to a kind of wind-driven generator.
Background technique
Wind energy more and more is subjected to the attention of countries in the world as a kind of renewable energy sources of cleaning.THE WIND ENERGY RESOURCES IN CHINA is abundant, utilizes having a high potential of wind energy power.
Now, people use wind-driven generator that wind energy is converted to electric energy usually.Fig. 1 is the structural representation of prior art wind-driven generator.As shown in Figure 1, wind-driven generator comprises: blade 101, wheel hub 102, generator 103, pylon 104 and column foot 105.Blade 101 is installed on the wheel hub 102, wind at a certain angle with velocity function on blade 101, make blade 101 produce running torques and rotate, thereby wind energy is converted to mechanical energy, the blade 101 of rotation will drive the generator for electricity generation on the pylon 104, and wind energy is converted to electric energy.
Wind-driven generator feeds back the blade parameter such as propeller pitch angle, rotating speed of blade 101 usually by rotating coder, adjust propeller pitch angle or rotating speed etc. to guarantee the vane change device on the wind-driven generator in real time according to wind speed, if breaking down, rotating coder may feed back inaccurate blade parameter, vane change device on the wind-driven generator becomes oar according to inaccurate blade parameter, and accidents such as disconnected oar, driving may take place.
In the prior art, when vane change device detects the fault of generation and location independent, if this moment, rotating coder broke down, vane change device will stop at non-home, and will be for blower fan and attendant, all abnormally dangerous.What for example rotating coder took place is short trouble, and show value is that feathering is shut down angle, but actual blade position does not reach this angle, if after this attendant enters wheel hub and safeguards that this blade very likely continues feathering, causes the injury of the person; In the prior art a plurality of rotating coders can also be installed; whether whether the identical rotating coder of finding breaks down to contrast the blade parameter of a plurality of rotating coders feedback; but; when breaking down for one in a plurality of rotating coders; may cause feathering arrival position limitation protection angle and trigger limit switch; thereby cause the triggering times of limit switch too frequent, influence the generating efficiency of wind-driven generator, and increased the cost of wind-driven generator.
Summary of the invention
For addressing the above problem, the invention provides a kind of wind-driven generator, be used for solving the problem that prior art wind-driven generator limit switch triggering times is frequent, generating efficiency is low, safe.
For this reason, the invention provides a kind of wind-driven generator, comprise blade, wheel hub, pylon, vane change device and protective gear, it is characterized in that, described protective gear comprises:
Second near switch, second block and limit switch;
Described second is fixed on the support of described change oar motor near switch and limit switch;
Described second block is fixed on the described change oar dish;
Whether described second is used to detect described blade near switch is in feathering shutdown angle.
Wherein, described protective gear also comprises: first near the switch and first block;
Described first is fixed on the support of described change oar motor near switch;
Described first block is fixed on the described change oar dish;
Whether described first is used to detect described blade near switch arrives the generating angle.
Wherein, also comprise:
Be in generating during angle at propeller pitch angle, described first detects described first block near switch, and described first sends to described vane change device near switch with the position signal that described propeller pitch angle is in the generating angle.
Wherein, the scope of described generating angle is between 0 °～5 °.
Wherein, when propeller pitch angle was in feathering and shuts down angle, described second detected described second block near switch, and described second is in feathering near switch with described propeller pitch angle shuts down the position signal of angle and send to described vane change device.
Wherein, described feathering is shut down the scope of angle between 85 °～90 °.
Wherein, when propeller pitch angle was in the position limitation protection angle, described limit switch was triggered to stop the rotation of described blade.
Wherein, the scope of described position limitation protection angle is between 91 °～95 °.
Wherein, described first near switch and second near switch adopt vortex type near switch, capacitive approach switch, proximity Hall switch, photoelectric near switch and thermoelectricity formula near in the switch any one.
Wherein, described limit switch adopts rotary stopper switch or craspedodrome limit switch.
The present invention has following beneficial effect:
In wind-driven generator of the present invention; obtain blade parameters such as the rotating speed of blade and propeller pitch angle by rotating coder; judge near the physical location of switch and blade whether the propeller pitch angle of rotating coder detection blade is accurate by first; judge that near switch the propeller pitch angle of rotating coder detection blade is accurate by second; fault with timely discovery rotating coder; trigger limit switch by be in the position limitation protection angle at propeller pitch angle; to break down at rotating coder or wind-force stops the rotation of blade when too big; thereby for wind-driven generator provides duplicate protection; can effectively avoid taking place accidents such as disconnected oar or driving; reduce the maintenance cost and the maintenance time of wind-driven generator; the triggering times of limit switch is significantly reduced, improved the generating efficiency of wind-driven generator.
Description of drawings
Fig. 1 is the structural representation of prior art wind-driven generator;
Fig. 2 is a wind-driven generator embodiment's provided by the invention stereogram;
Fig. 3 is a wind-driven generator embodiment's provided by the invention plan view;
Fig. 4 is a wind-driven generator embodiment's provided by the invention flow chart.
Embodiment
For making those skilled in the art understand technological scheme of the present invention better, wind-driven generator provided by the invention and guard method are described in detail below in conjunction with accompanying drawing.
Fig. 2 is wind-driven generator first an embodiment's provided by the invention stereogram, and Fig. 3 is wind-driven generator first an embodiment's provided by the invention plan view.As shown in Figures 2 and 3, in the present embodiment, vane change device comprises: become the oar motor, become oar dish 208, become oar controller, driving arm 207 and rotating coder, protective gear comprises second near switch 203, second block 204 and limit switch 205, second is fixed on the switch bracket 206 near switch 203 and limit switch 205, switch bracket 206 is fixed on the driving arm 207, and driving arm 207 is used for installing change oar motor and accelerator; Second block 204 is installed in and becomes on the oar dish 208; when propeller pitch angle is in feathering shutdown angle; second detects second block 204 near switch 203; second is in feathering near switch 203 with propeller pitch angle shuts down the position signal of angle and sends to vane change device; whether the propeller pitch angle that detects the rotating coder feedback is in feathering is equally shut down angle; if; can illustrate that then second does not have fault near switch 203 and rotating coder; otherwise; illustrate that then second has fault near switch 203 or rotating coder; at this moment vane change device need carry out the feathering operation to blade, is not in time found when the fault of rotating coder, causes propeller pitch angle to reach in the position limitation protection angular range; limit switch 205 will be triggered; thereby force blade to stop operating, to guarantee the safety of wind-driven generator, the accidents such as disconnected oar or driving that prevent take place.
Further; the embodiment of the invention also comprises first near the switch 201 and first block 202; first is fixed on the switch bracket 206 near switch 201; first block 202 is installed in and becomes on the oar dish 208; when the propeller pitch angle of blade is in the generating angle; first detects first block 202 near switch 201; first near the tutorial light of switch and propeller pitch angle is in feathering shuts down the position signal of angle and send to vane change device; whether the propeller pitch angle that at this moment detects the rotating coder feedback is in the generating angle equally; if; can illustrate that then first does not have fault near switch 201 and rotating coder; otherwise, illustrate that then first has fault near switch 201 or rotating coder.
In actual applications, the scope that can set the generating angle is between 0 °～5 °, and feathering is shut down the scope of angle between 85 °～90 °, the position limitation protection angle of limit switch 205 between 91 °～95 °.When first near the propeller pitch angle of the bright and rotating coder of the tutorial light of switch 201 feedback during not in the generating angle; can judge first near switch 201 or rotating coder breaks down by the physical location of observation blade; and in time blade is carried out the feathering operation; to prevent that accidents such as driving or disconnected oar from taking place, the safety of protection wind-driven generator.When second near the propeller pitch angle of the bright and rotating coder of the tutorial light of switch 203 feedback not when feathering is shut down angle; can judge second near switch 203 or rotating coder breaks down by the physical location of observation blade; and in time blade is continued the feathering operation and triggers limit switch, take place to prevent accidents such as driving or disconnected oar.First near switch 201 and second near switch 203 can adopt vortex type near switch, capacitive approach switch, proximity Hall switch, photoelectric near switch and thermoelectricity formula near in the switch any one, limit switch can adopt rotary stopper switch or craspedodrome limit switch.
When the fault of rotating coder is not in time found; cause vane change device propeller pitch angle can't be adjusted to appropriate position; may make propeller pitch angle reach the position limitation protection angle; at this moment limit switch 205 will be triggered; thereby force to stop the rotation of blade, prevent that blade from accidents such as disconnected oar or driving taking place.
Present embodiment wind-driven generator protection process specifically comprises the steps:
In the present embodiment, introduce technological scheme in conjunction with Fig. 2 and Fig. 3, when first during near the tutorial light light on the switch 201, the sign blade is in the generating angular range, whether the physical location that detects the blade parameter such as propeller pitch angle of rotating coder feedback and observe the blade on the wind-driven generator also is in the generating angular range, if the blade on the wind-driven generator is in the generating angular range, illustrate that first does not have fault near switch 201 and rotating coder, if the propeller pitch angle of rotating coder feedback is not in the generating angular range, for example the propeller pitch angle of rotating coder feedback is 60 °, and the position of the reality of blade is in the scope of generating angle, then enters step 402.
Break down at rotating coder, vane change device will carry out the feathering operation, with the on-call maintenance rotating coder, avoid causing accidents such as disconnected oar or driving to take place owing to rotating coder feeds back inaccurate blade parameter to vane change device.
When vane change device becomes oar and makes propeller pitch angle be in feathering to shut down in the angular range to blade, then enter step 403.
When second detects second block 204 near switch 203, second will send propeller pitch angle to vane change device near switch is in feathering shutdown angle, if being in feathering equally, the propeller pitch angle that this moment, rotating coder fed back to vane change device shuts down in the angular range, illustrate that second does not have fault near switch 203 and rotating coder, rotating coder and second is shut down angle when inconsistent near the feathering of switch feedback, for example the propeller pitch angle of rotating coder feedback is in feathering is shut down angular range, and second propeller pitch angle near the switch feedback is in feathering and shuts down angle; Perhaps the propeller pitch angle of rotating coder feedback is in feathering is shut down angular range; and second near the propeller pitch angle of switch feedback not in feathering is shut down angular range; illustrate that rotating coder or second breaks down near switch; vane change device continues feathering arrives in the position limitation protection angular range propeller pitch angle, then enters step 4.
Reach the position limitation protection angular range at propeller pitch angle, limit switch 205 will be triggered, and realize forcing blade to stop operating, and to prevent that propeller pitch angle can not stably be in feathering and shut down angle, cause taking place accidents such as disconnected oar or driving when wind is big.
In embodiments of the present invention; obtain blade parameters such as the rotating speed of blade and propeller pitch angle by rotating coder; judge near the physical location of switch and blade whether rotating coder detects the blade parameter accurate by first; judge that near switch the propeller pitch angle of rotating coder detection blade is accurate by second; fault with timely discovery rotating coder; trigger limit switch by be in the position limitation protection angle at propeller pitch angle; to break down at rotating coder or wind-force stops the rotation of blade when too big; thereby for wind-driven generator provides duplicate protection; can effectively avoid taking place accidents such as disconnected oar or driving; reduce the maintenance cost and the maintenance time of wind-driven generator; the triggering times of limit switch is significantly reduced, improved the generating efficiency of wind-driven generator.
Be understandable that above mode of execution only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement also are considered as protection scope of the present invention.
Claims (10)
1. a wind-driven generator comprises blade, wheel hub, pylon, vane change device and protective gear, it is characterized in that, described protective gear comprises:
Second near switch, second block and limit switch;
Described second is fixed on the support of described change oar motor near switch and limit switch;
Described second block is fixed on the described change oar dish;
Whether described second is used to detect described blade near switch is in feathering shutdown angle.
2. wind-driven generator according to claim 1 is characterized in that, described protective gear also comprises: first near the switch and first block;
Described first is fixed on the support of described change oar motor near switch;
Described first block is fixed on the described change oar dish;
Whether described first is used to detect described blade near switch arrives the generating angle.
3. wind-driven generator according to claim 1 is characterized in that also comprising:
Be in generating during angle at propeller pitch angle, described first detects described first block near switch, and described first sends to described vane change device near switch with the position signal that described propeller pitch angle is in the generating angle.
4. wind-driven generator according to claim 3 is characterized in that,
The scope of described generating angle is between 0 °～5 °.
5. wind-driven generator according to claim 1 is characterized in that,
When propeller pitch angle was in feathering and shuts down angle, described second detected described second block near switch, and described second is in feathering near switch with described propeller pitch angle shuts down the position signal of angle and send to described vane change device.
6. wind-driven generator according to claim 5 is characterized in that, described feathering is shut down the scope of angle between 85 °～90 °.
7. wind-driven generator according to claim 1 is characterized in that,
When propeller pitch angle was in the position limitation protection angle, described limit switch was triggered to stop the rotation of described blade.
8. wind-driven generator according to claim 7 is characterized in that, the scope of described position limitation protection angle is between 91 °～95 °.
9. wind-driven generator according to claim 2, it is characterized in that, described first near switch and second near switch adopt vortex type near switch, capacitive approach switch, proximity Hall switch, photoelectric near switch and thermoelectricity formula near in the switch any one.
10. wind-driven generator according to claim 2 is characterized in that, described limit switch adopts rotary stopper switch or craspedodrome limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010605123XA CN102042180B (en) | 2010-12-17 | 2010-12-17 | Wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010605123XA CN102042180B (en) | 2010-12-17 | 2010-12-17 | Wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102042180A true CN102042180A (en) | 2011-05-04 |
| CN102042180B CN102042180B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010605123XA Active CN102042180B (en) | 2010-12-17 | 2010-12-17 | Wind-driven generator |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061974A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Variable pitch system of wind generating set |
| CN103063241A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Angle measuring device of wind power propeller system |
| CN103061973A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Angular measurement device of variable pitch system of wind generating set |
| CN103161662A (en) * | 2011-12-13 | 2013-06-19 | 新疆金风科技股份有限公司 | Variable pitch limit structure of wind turbine blade |
| CN103470453A (en) * | 2013-09-05 | 2013-12-25 | 北京金风科创风电设备有限公司 | Wind generating set |
| CN103899478A (en) * | 2012-12-27 | 2014-07-02 | 北京万源工业有限公司 | Mechanical overspeed protection device of wind turbine generator set |
| CN104526718A (en) * | 2014-12-02 | 2015-04-22 | 深圳控石智能系统有限公司 | Device and method for preventing robot motor from galloping |
| CN103161662B (en) * | 2011-12-13 | 2016-12-14 | 新疆金风科技股份有限公司 | The variable pitch limit structure of blade of wind-driven generator |
| CN107152376A (en) * | 2017-06-29 | 2017-09-12 | 北京金风科创风电设备有限公司 | Method and system for stopping feathering of blades |
| CN107246357A (en) * | 2017-07-13 | 2017-10-13 | 固安华电天仁控制设备有限公司 | A kind of blade position self-inspection wind turbine pitch system |
| CN107781104A (en) * | 2016-08-30 | 2018-03-09 | 北京金风科创风电设备有限公司 | Control method and control circuit for propeller retracting |
| CN108204335A (en) * | 2016-12-20 | 2018-06-26 | 北京金风科创风电设备有限公司 | Wind generating set variable pitch angle calibration method and calibration device |
| CN110428691A (en) * | 2019-09-17 | 2019-11-08 | 固安华电天仁控制设备有限公司 | A kind of blower variable-pitch teaching simulating device |
| CN112145349A (en) * | 2020-09-28 | 2020-12-29 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch system limit switch trigger identification and control method |
| CN113027681A (en) * | 2019-12-25 | 2021-06-25 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
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| CN101037988A (en) * | 2006-03-16 | 2007-09-19 | 沈阳风电设备发展有限责任公司 | Wind-driven generator variable propeller pitch device |
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| EP0149467A1 (en) * | 1984-01-16 | 1985-07-24 | FIAT AVIAZIONE S.p.A. | Wind motor provided with a device for its automatic alignment with the wind |
| CN2677652Y (en) * | 2003-11-27 | 2005-02-09 | 新疆金风科技股份有限公司 | Blade feathering device of wind-mill generating set |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063241A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Angle measuring device of wind power propeller system |
| CN103061973A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Angular measurement device of variable pitch system of wind generating set |
| CN103061974A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Variable pitch system of wind generating set |
| CN103161662B (en) * | 2011-12-13 | 2016-12-14 | 新疆金风科技股份有限公司 | The variable pitch limit structure of blade of wind-driven generator |
| CN103161662A (en) * | 2011-12-13 | 2013-06-19 | 新疆金风科技股份有限公司 | Variable pitch limit structure of wind turbine blade |
| CN103899478A (en) * | 2012-12-27 | 2014-07-02 | 北京万源工业有限公司 | Mechanical overspeed protection device of wind turbine generator set |
| CN103899478B (en) * | 2012-12-27 | 2018-01-23 | 北京万源工业有限公司 | A kind of wind power generating set mechanical overspeed protective device |
| CN103470453A (en) * | 2013-09-05 | 2013-12-25 | 北京金风科创风电设备有限公司 | Wind generating set |
| CN103470453B (en) * | 2013-09-05 | 2015-08-05 | 北京金风科创风电设备有限公司 | Wind generating set |
| CN104526718A (en) * | 2014-12-02 | 2015-04-22 | 深圳控石智能系统有限公司 | Device and method for preventing robot motor from galloping |
| CN107781104A (en) * | 2016-08-30 | 2018-03-09 | 北京金风科创风电设备有限公司 | Control method and control circuit for propeller retracting |
| CN107781104B (en) * | 2016-08-30 | 2019-01-08 | 北京金风科创风电设备有限公司 | Control method and control circuit for propeller retracting |
| CN108204335A (en) * | 2016-12-20 | 2018-06-26 | 北京金风科创风电设备有限公司 | Wind generating set variable pitch angle calibration method and calibration device |
| CN107152376A (en) * | 2017-06-29 | 2017-09-12 | 北京金风科创风电设备有限公司 | Method and system for stopping feathering of blades |
| CN107246357A (en) * | 2017-07-13 | 2017-10-13 | 固安华电天仁控制设备有限公司 | A kind of blade position self-inspection wind turbine pitch system |
| CN110428691A (en) * | 2019-09-17 | 2019-11-08 | 固安华电天仁控制设备有限公司 | A kind of blower variable-pitch teaching simulating device |
| CN113027681A (en) * | 2019-12-25 | 2021-06-25 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
| CN113027681B (en) * | 2019-12-25 | 2022-06-28 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
| CN112145349A (en) * | 2020-09-28 | 2020-12-29 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch system limit switch trigger identification and control method |
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| Publication number | Publication date |
|---|---|
| CN102042180B (en) | 2012-06-20 |
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Owner name: BEIJING ETECHWIN ELECTRICS CO., LTD. Free format text: FORMER OWNER: XINJIANG JINFENG TECHNOLOGY CO., LTD. Effective date: 20130416 |
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Free format text: CORRECT: ADDRESS; FROM: 830026 URUMQI, XINJIANG UYGUR AUTONOMOUS REGION TO: 100176 DAXING, BEIJING |
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Effective date of registration: 20130416 Address after: 100176, No. 8, Boxing Road, Beijing economic and Technological Development Zone Patentee after: Beijing Techwin Electric Co., Ltd. Address before: 830026 Urumqi economic and Technological Development Zone, Shanghai Road, No. 107, No. Patentee before: Xinjiang Jinfeng Technology Co., Ltd. |