CN103899488A - Wind driven generator - Google Patents
Wind driven generator Download PDFInfo
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- CN103899488A CN103899488A CN201210576440.2A CN201210576440A CN103899488A CN 103899488 A CN103899488 A CN 103899488A CN 201210576440 A CN201210576440 A CN 201210576440A CN 103899488 A CN103899488 A CN 103899488A
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- Prior art keywords
- generator
- wind
- driven generator
- brake disc
- fork
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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 relates to a wind driven generator. The wind driven generator comprises a blade (1), a generator rotor (2), a generator stator (3), a brake disc (4), a link mechanism (5), a tail wing (6) and an electromagnetic brake device (8). The blade (1) and the generator rotor (2) are arranged on the generator stator (3). The brake disc (4) and the generator rotor (2) are oppositely arranged, and the brake disc (4) is connected with the link mechanism (5). The brake disc (4), the link mechanism (5) and the tail wing (6) constitute a first braking system, and the electromagnetic brake device (8) constitutes a second braking system and is connected with the generator stator (3). According to the wind driven generator, one of the first braking system and the second braking system is used for braking. The wind driven generator is provided with two sets of braking systems, when braking is needed, one of the first braking system and the second braking system can be used for braking, even though one braking system breaks down, the other braking system can still be used for braking, and therefore the operation safety of the wind driven generator is improved.
Description
Technical field
The present invention relates to wind generating technology, especially design a kind of wind-driven generator simple in structure and braking system that stability is higher that has.
Background technique
Wind-driven generator is installed on the abundant area of wind resource conventionally, for example high altitude localities or coastal area, conventionally wind speed is larger in these areas, and traditional wind-driven generator is owing to there is no speed limit or braking device, usually under high wind effect, damages because overload makes generator.
In order to prevent that wind-driven generator from damaging because transshipping under high wind, the technological means that technician takes is conventionally to be that wind-driven generator is installed speed limiting device or braking device.For example, the patent No. is that the Chinese utility model patent of CN200920116665.3 discloses a kind of wind-driven generator braking device, it passes through elastic pressuring clamping device, can be in the time that the rotating speed of wind wheel be crossed rated speed, force brake disc to stop operating, thereby rotor shaft is stopped operating, and then wind-driven generator is quit work, to prevent that wind-driven generator from being damaged by high wind.But, it is found that not only complex structure of this braking device, adopt elastic mechanical brake modes, elastomeric fatigue strength to limit its long-term brake reliability using because it is simple.
Summary of the invention
The present invention, in view of above problem, provides a kind of wind-driven generator simple in structure and braking system that stability is higher that has.
Wind-driven generator provided by the invention comprises blade (1), generator amature (2), generator unit stator (3), brake disc (4), linking mechanism (5), empennage (6) and electromagnetic brake device (8), and wherein said blade (1) and generator amature (2) are arranged on described generator unit stator (3); Described brake disc (4) and described generator amature (2) opposite disposed, and be connected with described linking mechanism (5); Described brake disc (4), linking mechanism (5) form first brake system with, empennage (6); Described electromagnetic brake device (8) forms the second brake system, and it is connected with described generator unit stator (3); By described first brake system and the second brake system, one of them brakes described wind-driven generator.
Wind-driven generator provided by the invention possesses two cover brake system, in the time that needs are braked, can by first brake system and the second brake system, one of them brakes, even if one of them brake system breaks down, also can carry out skidding by another, increase the Security of fan operation.
As an embodiment, above-mentioned linking mechanism (5) described empennage (6) effect lower promote described brake disc (4) along described generator unit stator (3) axially move forward stop described generator amature (2) to rotate
According to the present embodiment, in the time that wind speed is very large, under wind-force effect, empennage rotates around running shaft, and with linking mechanism effect, promote brake disc near generator amature by linking mechanism, and brake by the frictional force between brake disc and generator amature, thereby prevent that wind-driven generator from being destroyed by high wind.
As an embodiment, above-mentioned linking mechanism (5) comprising: base (50), and it is upper that it is fixed on generator unit stator (3), and on described base (50), be provided with running shaft (51); Fork (52), it is upper and can be around described running shaft (51) rotation that it is fixed on described running shaft (51), and described fork (52) at one end portion has fork and pushes away post (53); Connecting rod (54), its one end is connected with described fork (52), and can rotate with respect to described fork (52); Slidercrank mechanism (55), its one end is connected with described connecting rod (54), and the other end is connected with described brake disc (4).
According to the present embodiment, simplify the brake system of blower fan by linking mechanism simple in structure is set, and improve the stability of brake system.
As an embodiment, described wind-driven generator also comprises: rotation speed of fan detection unit, control unit (7) and electromagnetic brake device (8), wherein said rotation speed of fan detection unit is for detection of the rotating speed of wind-driven generator, and detected rotation speed of fan is sent to described control unit; Described control unit (7) is for braking according to electromagnetic brake device (8) described in the rotation speed of fan control of described detection.
According to the present embodiment, detect rotation speed of fan by rotation speed of fan detection unit, can increase suddenly at rotation speed of fan (that is, wind speed increases suddenly) time, brake by electromagnetic brake device, to prevent that wind-driven generator from being damaged by high wind.By electromagnetic brake device is set, can act synergistically with aforementioned mechanical braking device, protect better wind-driven generator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wind-driven generator of one embodiment of the present invention;
Fig. 2 is the plan view of wind-driven generator shown in Fig. 1;
Fig. 3 is the structural representation of linking mechanism.
Embodiment
For making those skilled in the art understand better technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, wind-driven generator provided by the invention is described in detail.In these accompanying drawings, for identical or suitable part, mark same numeral.
Structure with reference to a mode of execution of 1 ~ 3 pair of wind-driven generator of the present invention of figure describes, and below is only the preferred forms of wind-driven generator of the present invention, and the present invention is not limited in following structure.
Fig. 1 is the structural representation of the wind-driven generator of one embodiment of the present invention.Fig. 2 is the plan view of wind-driven generator shown in Fig. 1.As depicted in figs. 1 and 2, wind-driven generator comprises blade 1, generator amature 2 and generator unit stator 3, and blade 1 and generator amature 2 are enclosed within on generator unit stator 3, and can rotate around generator unit stator 3.Blade 1 rotates under wind-force effect, and drives generator amature 2 to rotate, and there is strong permanent magnetic body generator amature inside, thereby makes the magnetic field rotating of generator, and the coil cutting magnetic line in generator unit stator 3, sends electric energy.Thereby be electric energy by wind energy transformation, realize wind-power electricity generation.
In order to prevent that wind-driven generator from being damaged by high wind; wind-driven generator of the present invention is provided with first brake brake system and the second brake system; be mechanical brake system and electromagnetic brake system, can effectively protect wind-driven generator by these two brake system, prevent from being damaged by high wind.
The mechanical brake system of wind-driven generator of the present invention comprises brake disc 4, linking mechanism 5 and empennage 6, the relative generator amature 2 of brake disc 4 arranges and is connected with linking mechanism 5, empennage 6 can rotate around running shaft 7 under wind-force effect, and in the time that empennage 6 contacts with linking mechanism 5, can promote brake disc 4 and move axially with near generator amature 2 along generator unit stator 3.
As shown in Figure 1, brake disc 4 is hollow disc dress, is sleeved on generator unit stator 3.
As shown in Figure 3, the linking mechanism 5 of wind-driven generator mechanical brake system of the present invention comprises base 50, fork 52, connecting rod 54 and slidercrank mechanism 55.Base 50 is fixed on generator unit stator 3, is provided with running shaft 51 on base 50, and fork 52 is connected on running shaft 51, and can rotate around running shaft 51.Connecting rod 54 is connected with fork 52 and slidercrank mechanism 55 respectively, and connecting rod 54 is and is flexibly connected with fork 52 and slidercrank mechanism 55.Slidercrank mechanism 55 is connected with brake disc 4.
The brake process of wind-driven generator mechanical brake system of the present invention is as follows: under wind-force effect, empennage 6 rotates around running shaft, in the time rotating to several angle, empennage 6 pushes away post 53 with the fork on fork 52 and contacts, and promote fork 52 and rotate, fork 52 rotates drivening rod 54 and rotates, and the slide block 55 that rotarily drives of connecting rod 54 moves forward, thereby make slide block 55 promote brake disc 4 near generator amature 2, realize braking by the frictional force between brake disc 4 and generator amature 2.
Electromagnetic brake system of the present invention comprises rotation speed of fan detection unit, control unit 7 and electromagnetic brake device 8, and wherein rotation speed of fan detection unit is for detection of the rotating speed of wind-driven generator, and detected rotation speed of fan is sent to control unit 7; Control unit 7 is for braking according to rotation speed of fan control electromagnetic brake device 8.Electromagnetic brake device 8 is for limiting the rotating speed of generator amature (2), and its essence is while receiving the brake instruction of control unit, and the outlet line of automatic short-circuit generator, makes wind-driven generator in electromagnetic brake state.
Wind-driven generator of the present invention, in the time of the instantaneous increase of wind-force, electromagnetic brake system is connected excitation brake circuit automatically, and the instantaneous braking moment of generator is strengthened, and guarantees the stable of rotation speed of fan; In the time that wind-force stably increases to certain speed, mechanical brake system adopts yaw system automatically to adjust the Windward angle of blower fan, reduces effective wind driving torque, stablizes blower fan motion speed, thereby effectively protects generator not to be damaged simultaneously.Blower fan, in running, is controlled the braking of blower fan simultaneously by mechanical brake system and electromagnetic brake control system, therefore, as one of them system breaks down, still have another system to control blower fan, thereby ensured the operation that blower fan is safe and reliable.
Above mode of execution is only used to principle of the present invention is described and the illustrative embodiments that adopts, but 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 are also considered as protection scope of the present invention.
Claims (8)
1. a wind-driven generator, is characterized in that, comprises blade (1), generator amature (2), generator unit stator (3), brake disc (4), linking mechanism (5), empennage (6) and electromagnetic brake device (8), wherein
Described blade (1) and generator amature (2) are arranged on described generator unit stator (3);
Described brake disc (4) and described generator amature (2) opposite disposed, and be connected with described linking mechanism (5);
Described brake disc (4), linking mechanism (5) form first brake system with, empennage (6);
Described electromagnetic brake device (8) forms the second brake system, and it is connected with described generator unit stator (3);
By described first brake system and the second brake system, one of them brakes described wind-driven generator.
2. wind-driven generator as claimed in claim 1, it is characterized in that, described linking mechanism (5) described empennage (6) effect lower promote described brake disc (4) along described generator unit stator (3) axially move forward stop described generator amature (2) to rotate.
3. wind-driven generator as claimed in claim 1, is characterized in that, described electromagnetic brake device (8) brakes by the rotating speed of restriction generator amature (2).
4. the wind-driven generator as described in claim 1-3 any one, is characterized in that, described brake disc 4 is hollow disc dress, and it is sleeved on described generator unit stator (3).
5. the wind-driven generator as described in claim 1-3 any one, is characterized in that, described linking mechanism (5) comprising: base (50), fork (52), connecting rod (54) and slidercrank mechanism (55), wherein
It is upper that described base (50) is fixed on described generator unit stator (3), and on described base (50), be provided with running shaft (51);
Described fork (52) is fixed on described running shaft (51) above and can be around described running shaft (51) rotation, and described fork (52) is formed with fork and pushes away post (53) in one end;
Described connecting rod (54) one end is connected with described fork (52), and the other end is connected with described slidercrank mechanism (55), and described connecting rod (54) is and is flexibly connected with described fork (52) and described slidercrank mechanism (55);
It is mobile that described slidercrank mechanism (55) promotes described brake disc (4) under described fork (52) and connecting rod (54) effect.
6. wind-driven generator as claimed in claim 5, it is characterized in that, described crank block (55) comprises slide block and guide rail, described guide rail is fixed on described generator unit stator (3), described slide block is connected with described connecting rod, and under described connecting rod effect, slide along described guide rail, thereby near or away from described brake disc (4).
7. the wind-driven generator as described in claim 1-3 any one, it is characterized in that, described empennage (6) can rotate around running shaft (9) under wind-force effect, and it is mobile with close described generator amature (2) in the time that described empennage (6) contacts with described linking mechanism (5), can to promote described brake disc (4).
8. the wind-driven generator as described in claim 1-3 any one, is characterized in that, also comprises rotation speed of fan detection unit, control unit (7), wherein
Described rotation speed of fan detection unit is for detection of the rotating speed of wind-driven generator, and detected rotation speed of fan is sent to described control unit (7);
Described control unit (7) is for braking according to electromagnetic brake device (8) described in detected rotation speed of fan control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210576440.2A CN103899488B (en) | 2012-12-26 | 2012-12-26 | Wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210576440.2A CN103899488B (en) | 2012-12-26 | 2012-12-26 | Wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899488A true CN103899488A (en) | 2014-07-02 |
| CN103899488B CN103899488B (en) | 2016-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210576440.2A Expired - Fee Related CN103899488B (en) | 2012-12-26 | 2012-12-26 | Wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899488B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089587A (en) * | 2016-06-13 | 2016-11-09 | 茂鑫光电科技（上海）有限公司 | Wind-driven generator and the wind-tunnel with wind-driven generator |
| CN106115255A (en) * | 2016-06-21 | 2016-11-16 | 奥美森智能装备股份有限公司 | A kind of suction device for discharging being easy to control |
| CN114337082A (en) * | 2020-09-29 | 2022-04-12 | 新疆金风科技股份有限公司 | Brake locking device for motor, motor and wind generating set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316096A (en) * | 1978-10-10 | 1982-02-16 | Syverson Charles D | Wind power generator and control therefore |
| CN2517890Y (en) * | 2002-01-23 | 2002-10-23 | 杨彬 | Retarding brake device of wind power generator |
| CN202244077U (en) * | 2011-08-15 | 2012-05-30 | 中国航空工业集团公司西安飞机设计研究所 | Dual-redundancy yawing-preventing control system for braking of airplane |
| CN203175754U (en) * | 2012-12-26 | 2013-09-04 | 邵汉琦 | Wind driven generator |
-
2012
- 2012-12-26 CN CN201210576440.2A patent/CN103899488B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316096A (en) * | 1978-10-10 | 1982-02-16 | Syverson Charles D | Wind power generator and control therefore |
| CN2517890Y (en) * | 2002-01-23 | 2002-10-23 | 杨彬 | Retarding brake device of wind power generator |
| CN202244077U (en) * | 2011-08-15 | 2012-05-30 | 中国航空工业集团公司西安飞机设计研究所 | Dual-redundancy yawing-preventing control system for braking of airplane |
| CN203175754U (en) * | 2012-12-26 | 2013-09-04 | 邵汉琦 | Wind driven generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089587A (en) * | 2016-06-13 | 2016-11-09 | 茂鑫光电科技（上海）有限公司 | Wind-driven generator and the wind-tunnel with wind-driven generator |
| CN106089587B (en) * | 2016-06-13 | 2020-11-13 | 茂鑫光电科技（上海）有限公司 | Wind driven generator and wind tunnel with same |
| CN106115255A (en) * | 2016-06-21 | 2016-11-16 | 奥美森智能装备股份有限公司 | A kind of suction device for discharging being easy to control |
| CN114337082A (en) * | 2020-09-29 | 2022-04-12 | 新疆金风科技股份有限公司 | Brake locking device for motor, motor and wind generating set |
| CN114337082B (en) * | 2020-09-29 | 2023-05-16 | 新疆金风科技股份有限公司 | Brake locking device for motor, motor and wind generating set |
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| Publication number | Publication date |
|---|---|
| CN103899488B (en) | 2016-12-28 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20161228 Termination date: 20181226 |