CN102758734B - Wind power generation system - Google Patents
Wind power generation system Download PDFInfo
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- CN102758734B CN102758734B CN201210239503.5A CN201210239503A CN102758734B CN 102758734 B CN102758734 B CN 102758734B CN 201210239503 A CN201210239503 A CN 201210239503A CN 102758734 B CN102758734 B CN 102758734B
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- disc
- wind
- rearmounted
- preposition
- driving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to a wind power generation system. The wind power generation system comprises a wind wheel and a base plate, wherein the wind wheel is connected with a speed increaser; a servo driving system and a protective cover are fixed on the base plate; the speed increaser is connected with a preposed driving disc, and a preposed speed signal sampling device is arranged between the speed increaser and the preposed driving disc; the preposed driving disc is in non-contact connection with a preposed driven disc through magnetic force; the preposed driven disc is connected with a postpositional driving disc, and a preposed excitation winding and a postpositional excitation winding are sequentially arranged between the preposed driven disc and the postpositional driving disc; the postpositional driving disc is in non-contact connection with a postpositional driven disc through magnetic force; and the postpositional driven disc is connected with a generator, and a postposition degree signal sampling device is arranged between the postpositional driven disc and the generator. The wind power generation system has the beneficial effects that the structure is simple, safe and reliable; the high stability, low noise, constant frequency and constant voltage of an electric energy output process are realized; the service life of a wind generation set is prolonged by virtue of the magnetic force non-contact connections between the driving discs and the driven discs; and the maximization of electric energy production output is realized.
Description
Technical field
The invention belongs to electric machinery field, relate in particular to a kind of wind-power generating system.
Background technique
Wind energy is a kind of reproducible clean energy resource.In the last thirty years, aspect the utilizing of wind energy, be that theoretical side or application study have all obtained major progress in the world, wind generating technology becomes better and approaching perfection day by day.China is one of main pusher of Asia wind energy industry development, and the development speed of wind generating technology and industry will obviously be accelerated.The development of 1.5～2.5MW, 2.5MW and above double-fed type speed changing and constant frequency wind-powered electricity generation unit is supported in the development of " national science and technology supporting plan major project " high-power wind turbine unit and demonstration; The development of 1.5～2.5MW, 2.5MW and above direct driving speed-changing constant frequency wind-powered electricity generation unit; Development and the relevant wind power technology Analysis on development etc. of the above wind power generation unit blade of MW class, gear-box, double-fed type generator, direct-drive permanent-magnetism formula generator, double-fed wind generator unit control system and current transformer, direct drive wind power unit control system and current transformer.
In sum, the technical problem of outstanding explanation wind-powered electricity generation unit most critical is the functional characteristics such as how to realize constant frequency, constant voltage, generated energy is large, noise is low, safe, the life-span long, single degree electricity cost is low, is every industry scientific worker's the objective of the struggle.At present, China's grid type wind-powered electricity generation unit overwhelming majority is external unit, wherein Denmark accounts for 60% left and right, Germany and accounts for 20% left and right, domesticly only accounts for 10%, having developed type all belongs to and determines rotating speed stall control type wind energy conversion system, variable speed constant frequency type wind energy conversion system is still in developmental research, major technique walks to introduce digestion production domesticization road, and this absolutely proves that the wind power technology of China lags far behind some flourishing western countries.
Wind-powered electricity generation unit, in running, no matter require wind energy conversion system wind speed how to change, always rotating speed keeps constant or is no more than a certain steady state value, has adopted speed governing or speed limiting device for this reason, is roughly three classes: one, depart from wind direction overspeed protection from principle; Two, utilize aerodynamical resistance braking; Three, feather speed governing.
Summary of the invention
The object of this invention is to provide a kind of wind-power generating system, in the time that wind speed changes, the rotating speed that guarantee passes to synchronous generator does not change along with the variation of wind speed, realizes constant frequency rate, the constand voltage of output electric energy, has solved above shortcomings in prior art.
The object of the invention is to be achieved through the following technical solutions:
A kind of wind-power generating system, comprise wind wheel and chassis, described wind wheel is connected with speed increaser, on described chassis, be fixed with servo drive system, described speed increaser inside is provided with and starts and braking device, the output shaft of speed increaser is connected with preposition driving disc, preposition driving disc outside is provided with preposition driven disc, preposition driven disc connects rearmounted driving disc, between described preposition driven disc and rearmounted driving disc, be provided with in turn preposition exciting winding and rearmounted exciting winding, in rearmounted driving disc, be provided with rearmounted driven disc, rearmounted driven disc is connected with generator.
Further, between described speed increaser and preposition driving disc, be provided with preposition rate signal sampler, between described rearmounted driven disc and generator, be provided with rearmounted rate signal sampler.
Further, described chassis surface is provided with protective housing.
Preferably, described wind wheel is connected with speed increaser by coupling, and described preposition driven disc is connected with rearmounted driving disc by elastic coupling flexible coupling.
Preferably, described preposition driving disc and preposition driven disc are connected driving by magnetic force is untouchable, and described rearmounted driving disc and rearmounted driven disc are connected driving by magnetic force is untouchable.
Beneficial effect of the present invention is: this apparatus structure is simple, safe and reliable; High stable, low noise, constant frequency rate, the constand voltage of electric energy output procedure are realized; Untouchable connection of magnetic force between driving disc and driven disc, extend working life of wind-powered electricity generation unit; Realize the maximization of generated energy output.
Brief description of the drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is a kind of wind-power generating system structural representation described in the embodiment of the present invention;
Fig. 2 is a kind of wind-power generating system functional-block diagram described in the embodiment of the present invention.
In figure:
1, wind wheel; 2, chassis; 3, speed increaser; 4, servo drive system; 5, preposition driving disc; 6, preposition driven disc; 7, rearmounted driving disc; 8, rearmounted driven disc; 9, generator; 10, preposition rate signal sampler; 11, preposition exciting winding; 12, rearmounted exciting winding; 13, rearmounted rate signal sampler; 14, protective housing.
Embodiment
As shown in Figure 1, a kind of wind-power generating system described in the embodiment of the present invention, comprise wind wheel 1 and chassis 2, wind wheel 1 is connected with speed increaser 3 by coupling, on chassis 2, be fixed with servo drive system 4 and protective housing 14, speed increaser 3 inside are provided with and start and braking device, the output shaft of speed increaser 3 is connected with preposition driving disc 5, between speed increaser 3 and preposition driving disc 5, be provided with preposition rate signal sampler 10, preposition driving disc 5 is connected with preposition driven disc 6 by magnetic force is untouchable, preposition driven disc 6 connects rearmounted driving disc 7 by elastic coupling flexible coupling, between preposition driven disc 6 and rearmounted driving disc 7, be provided with in turn preposition exciting winding 11 and rearmounted exciting winding 12, rearmounted driving disc 7 is connected with rearmounted driven disc 8 by magnetic force is untouchable, rearmounted driven disc 8 is connected with generating 9, between rearmounted driven disc 8 and generator 9, be provided with rearmounted rate signal sampler 13, by the untouchable connection of two-stage magnetic force, realize constant frequency rate, constand voltage generating.
In the time that wind speed remains on a certain rating value, wind wheel 1 is by along keep the rotation of certain speed perpendicular to the plane of wind direction, speed increaser 3 is exported to the rotating speed of preposition driving disc 5 too at a certain rating value, at this moment export a corresponding analog signals by preposition rate signal sampler 10, we are made as u1, reverse feedback is to analog amount speed and control unit, through comparing, computing, after amplifying, one of output drives signal to preposition exciting winding 11, drive preposition driven disc 6 and rearmounted driving disc 7 by the rotation speed operation of setting, rearmounted driving disc 7 is connected by magnetic force with rearmounted driven disc 8, at this moment, we give 12 1 definite value setting signals of rearmounted exciting winding, drive rearmounted driven disc 8 and generator 9 to work, rearmounted rate signal sampler 13 is exported a corresponding analog signals, we are made as u2.
In the time that wind speed changes, the speed of wind wheel 1 also will change, the rotating speed of speed increaser 3 output shafts also changes thereupon, at this moment preposition rate signal sampler 10 is exported the analog signals u1 of change (increase or reduce), reverse feedback is given preposition exciting winding 11 to analog amount speed with a control unit corresponding driving signal of output (reduce or increase), to ensure that preposition driven disc 6 is by the running that remains unchanged of former setting speed, ensure that the rotating speed of transmission system and generator 9 is constant below, to realize constant speedpump, constant frequency rate, constand voltage generating.
In the time that the load of generator 9 changes, the rotating speed moment of generator 9 will change, at this moment exporting a corresponding analog signals u2(by rearmounted rate signal sampler 13 increases or reduces) change, reverse feedback is given rearmounted exciting winding 12 to reference speed is given with a control unit corresponding driving signal of output (reduce or increase), do not change along with the variation of load with the rotating speed that ensures generator 9, to realize constant speedpump, constant frequency rate, constand voltage generating.
As shown in Figure 2, the present invention also has unique startup and braking device, and it and speed increaser 3 are integrated type structure.In the time that wind-force reaches certain wind speed, wind-force Measurement and Control System output signal, starts wind power system automatically by set model operation generating; In the time that wind-force is not enough, the output of wind-force Measurement and Control System no signal, can close wind power system automatically, also can set operation wind-powered electricity generation unit, but running of wind generating set decrease in efficiency now, along with wind speed reduces and reduces, specifically depending on the load of electrical network.Wind direction indication mechanism is to control the signal source of servo drive system 4, it can accurately be caught wind-force direction and drive wind power system to control servo drive system 4, wind wheel 1 plane of rotation is always rotated perpendicular to wind speed direction windward, make wind-powered electricity generation unit keep best wind energy utilization, to export maximum generated energy.Demonstration, operation control system, analog amount speed and control unit, the given control unit of reference speed is the heart of running of wind generating set, it can accurately demonstrate the each system running state of wind-powered electricity generation unit, Operational Limits, and can realize malfunction alarm and communication.
The present invention is not limited to above-mentioned preferred forms; can not limit to the present invention with this; other various forms of products that anyone draws under enlightenment of the present invention; no matter do any variation in its shape or structure; every have identical with a application or akin technological scheme, within all dropping on protection scope of the present invention.
Claims (4)
1. a wind-power generating system, comprise wind wheel (1) and chassis (2), described wind wheel (1) is connected with speed increaser (3), on described chassis (2), be fixed with servo drive system (4), it is characterized in that: described speed increaser (3) inside is provided with and starts and braking device, the output shaft of speed increaser (3) is connected with preposition driving disc (5), preposition driving disc (5) outside is provided with preposition driven disc (6), preposition driven disc (6) connects rearmounted driving disc (7), between described preposition driven disc (6) and rearmounted driving disc (7), be provided with in turn preposition exciting winding (11) and rearmounted exciting winding (12), in rearmounted driving disc (7), be provided with rearmounted driven disc (8), rearmounted driven disc (8) connects generator (9), between described speed increaser (3) and preposition driving disc (5), be provided with preposition rate signal sampler (10), between described rearmounted driven disc (8) and generator (9), be provided with rearmounted rate signal sampler (13), described preposition driving disc (5) and preposition driven disc (6) are connected driving by magnetic force is untouchable, and described rearmounted driving disc (7) and rearmounted driven disc (8) are connected driving by magnetic force is untouchable.
2. wind-power generating system according to claim 1, is characterized in that: surface, described chassis (2) is provided with protective housing (14).
3. wind-power generating system according to claim 1, is characterized in that: described wind wheel (1) is connected with speed increaser (3) by coupling.
4. wind-power generating system according to claim 1, is characterized in that: described preposition driven disc (6) is connected with rearmounted driving disc (7) by elastic coupling flexible coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239503.5A CN102758734B (en) | 2012-07-11 | 2012-07-11 | Wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239503.5A CN102758734B (en) | 2012-07-11 | 2012-07-11 | Wind power generation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758734A CN102758734A (en) | 2012-10-31 |
| CN102758734B true CN102758734B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210239503.5A Expired - Fee Related CN102758734B (en) | 2012-07-11 | 2012-07-11 | Wind power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113116519B (en) * | 2021-04-26 | 2022-09-20 | 武汉联影智融医疗科技有限公司 | Force feedback main manipulator and puncture surgical robot system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223815C2 (en) * | 1992-07-20 | 1994-05-11 | Gerd Schuesler | Magnetic gearbox |
| CN101725476A (en) * | 2008-10-28 | 2010-06-09 | 马杰 | Variable speed constant frequency permanent magnetic speed-adjusting wind power generator |
| CN101951073A (en) * | 2010-08-11 | 2011-01-19 | 秦皇岛市波达实业开发有限公司 | Small and medium size wind driven generator |
| CN202746100U (en) * | 2012-07-11 | 2013-02-20 | 朱长林 | Wind power generation system |
-
2012
- 2012-07-11 CN CN201210239503.5A patent/CN102758734B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223815C2 (en) * | 1992-07-20 | 1994-05-11 | Gerd Schuesler | Magnetic gearbox |
| CN101725476A (en) * | 2008-10-28 | 2010-06-09 | 马杰 | Variable speed constant frequency permanent magnetic speed-adjusting wind power generator |
| CN101951073A (en) * | 2010-08-11 | 2011-01-19 | 秦皇岛市波达实业开发有限公司 | Small and medium size wind driven generator |
| CN202746100U (en) * | 2012-07-11 | 2013-02-20 | 朱长林 | Wind power generation system |
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| Publication number | Publication date |
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| CN102758734A (en) | 2012-10-31 |
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Granted publication date: 20141029 Termination date: 20180711 |