CN101139972A - Electromagnetic variation paddle mechanism of windmill generator - Google Patents
Electromagnetic variation paddle mechanism of windmill generator Download PDFInfo
- Publication number
- CN101139972A CN101139972A CNA200710109315XA CN200710109315A CN101139972A CN 101139972 A CN101139972 A CN 101139972A CN A200710109315X A CNA200710109315X A CN A200710109315XA CN 200710109315 A CN200710109315 A CN 200710109315A CN 101139972 A CN101139972 A CN 101139972A
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- CN
- China
- Prior art keywords
- slewing bearing
- magnet steel
- blade
- step motor
- propeller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to an electromagnetic propeller-switching mechanism for wind power generators, which belongs to the field of wind power generation. The invention is characterized in that: a motor wound stator and a magnet steel rotor are made up into a permanent magnet step motor; the stator and rotor in the permanent magnet step motor are respectively connected with an internal rotary support and an external rotary support, so as to form a support and rotation system for the permanent magnet step motor. The internal and external rotary supports are respectively connected with vanes and hubs through bolts to form a propeller-switching mechanism. The propeller-switching system is not provided with gear meshing, for which it is not possible to result in gear wearing and damage; meanwhile, the propeller-switching system has the advantages of neither gearbox oil leakage nor damping, and easy maintenance. Braking and quick response are maintained through permanent magnet steel and DC current without contact friction or vibration; meanwhile, the invention can effectively solve tower shadow phenomenon.
Description
One, technical field
The present invention relates to a kind of electromagnetic variation paddle mechanism of windmill generator, belong to wind power generation field.
Two, background technique
Paddle changing wind power generator is to drag the wheel hub rotation by blade, and wants to regulate the rotating speed of wheel hub and the angle of attack that output power must change blade.Generally be that corner by blade 0-90 degree constantly changes the rotating speed that changes wheel hub and output power, existing pitch-controlled system all changes angle by gear-box, because contact is arranged, the wearing and tearing of gear and gap directly affect the quality of product and the conformity of three blades, the lubrication system of gear-box is safeguarded very inconvenience, and problems such as leakage of oil, damping torque are big may appear in the variation of lubricant oil when low temperature, high temperature.Because it is slow to be that motor drags gear rotation speed of response, is difficult to solve tower shadow phenomenon, the tower shadow is meant: when a blade forwards to when overlapping with pylon, the flow-disturbing of wind occurs in tower shadow scope, must change the angle of attack at any time and just can make hub rotation speed steady.And the brake of adopting is generally the contact-type brake, safeguards also very trouble.
Three, summary of the invention
The purpose of this invention is to provide in a kind of blade pitch device do not have wearing and tearing, three blades attack and hand over consistently, mechanism does not have leakage of oil, the brake speed of response is fast, contactless friction and vibrations; Easy to maintenance, blade does not have the electromagnetic variation paddle mechanism of windmill generator that tower shadow phenomenon produces.
Technical solution: form permanent magnetic step motor by motor wound stator and magnet steel rotor, permanent magnetic step motor stator, rotor support inside and outside circle with revolution respectively and connect and compose permanent magnetic step motor and support and rotary system, and revolution is supported Internal and external cycle and connected and composed blade pitch device by bolt and blade and wheel hub respectively.
Advantage of the present invention is: do not have the gear interlock in the pitch-controlled system, can not cause the wearing and tearing and the damage of gear, do not have problems such as gear-box leakage of oil and damping, easy care.Brake adopts permanent magnetic steel and direct current to keep brake, and speed of response is fast, contactless friction and vibrations, and can effectively solve tower shadow phenomenon.
Four, description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a magnet steel rotor enlarged view of the present invention;
Fig. 3 is an impeller assembly plan view of the present invention;
Fig. 4 is an impeller assembly side view of the present invention;
Five, embodiment
The present invention prolongs joint 3, blade 4 by wheel hub 1, cowling 2, change oar, motor wound stator 5, magnet steel rotor 6 are formed, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, wound stator 5 is connected with the inner ring of slewing bearing 7, magnet steel rotor 6 is connected with the outer ring of slewing bearing 7, constituting permanent magnetic step motor supports and rotating machinery, the inner ring of slewing bearing 7 is connected with blade 4 by bolt, and the outer ring of slewing bearing 7 is connected to form blade pitch device by bolt and wheel hub 1.
Working principle: behind the logical 1 group pulse electricity of motor wound stator 2, dragging permanent magnetism stepping rotor changes 1 utmost point, and drives blade and rotate a certain angle and reach the purpose that becomes oar.If continuous impulse just can make blade 4 angle of swing increase, blade 4 angle of swing of each group pulse are that many sets of pulses of number of poles lower blade deflection angle is little by how many decisions of number of poles of magnet steel rotor 6, otherwise deflection angle is big.Simultaneously, after reaching requirement blade 4 deflection angles, keep direct current (d.c.) and p-m rotor can be pinned, blade 4 can not be rotated to reach fixedly wind-driven generator output power and rotating speed by what motor wound stator 5 added.
The present invention is by wheel hub 1, cowling 2, become oar and prolong joint 3, blade 4, motor wound stator 5, magnet steel rotor 6 is formed, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, wound stator 5 is connected with the outer ring of slewing bearing 7, magnet steel rotor 6 connects and composes permanent magnetic step motor support and rotating machinery with the inner ring of slewing bearing 7, the outer ring of slewing bearing 7 is connected with blade 4 by bolt, and the inner ring of slewing bearing 7 is connected to form blade pitch device by bolt and wheel hub 1.
The present invention prolongs joint 3, blade 4 by wheel hub 1, cowling 2, change oar, motor wound stator 5, magnet steel rotor 6 are formed, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, wound stator 5 is connected with the inner ring of slewing bearing 7, magnet steel rotor 6 is connected with the outer ring of slewing bearing 7, constituting permanent magnetic step motor supports and rotating machinery, the outer ring of slewing bearing 7 is connected with blade 4 by bolt, and the inner ring of slewing bearing 7 is connected to form blade pitch device by bolt and wheel hub 1.
The present invention is by wheel hub 1, cowling 2, become oar and prolong joint 3, blade 4, motor wound stator 5, magnet steel rotor 6 is formed, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, motor wound stator 5 is formed permanent magnetic step motor with magnet steel rotor 6, wound stator 5 is connected with the outer ring of slewing bearing 7, magnet steel rotor 6 connects and composes permanent magnetic step motor support and rotating machinery with the inner ring of slewing bearing 7, the inner ring of slewing bearing 7 is connected with blade 4 by bolt, and the outer ring of slewing bearing 7 is connected to form blade pitch device by bolt and wheel hub 1.
Claims (3)
1. electromagnetic variation paddle mechanism of windmill generator, prolong joint (3), blade (4) by wheel hub (1), cowling (2), change oar, motor wound stator (5), magnet steel rotor (6) are formed, it is characterized in that: motor wound stator (5) is formed permanent magnetic step motor with magnet steel rotor (6), wound stator (5) is connected with the inner ring of slewing bearing (7), magnet steel rotor (6) is connected with the outer ring of slewing bearing (7), the inner ring of slewing bearing (7) is connected with blade (4), and the outer ring of slewing bearing (7) is connected with wheel hub (1).
2. electromagnetic variation paddle mechanism of windmill generator according to claim 1 is characterized in that: wound stator (5) is connected with the outer ring of slewing bearing (7), and magnet steel rotor (6) is connected with the inner ring of slewing bearing (7).
3. electromagnetic variation paddle mechanism of windmill generator according to claim 1 and 2 is characterized in that: the outer ring of slewing bearing (7) is connected with blade (4), and the inner ring of slewing bearing (7) is connected with wheel hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710109315XA CN101139972B (en) | 2007-05-24 | 2007-05-24 | Electromagnetic variation paddle mechanism of windmill generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710109315XA CN101139972B (en) | 2007-05-24 | 2007-05-24 | Electromagnetic variation paddle mechanism of windmill generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101139972A true CN101139972A (en) | 2008-03-12 |
| CN101139972B CN101139972B (en) | 2011-01-26 |
Family
ID=39192044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710109315XA Expired - Fee Related CN101139972B (en) | 2007-05-24 | 2007-05-24 | Electromagnetic variation paddle mechanism of windmill generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101139972B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745800A (en) * | 2008-11-17 | 2010-06-23 | 通用电气公司 | Method for mounting components at a wind turbine |
| CN101915211A (en) * | 2010-08-19 | 2010-12-15 | 三一电气有限责任公司 | Wind turbine generator system and pitch system applied to same |
| CN102052250A (en) * | 2011-01-21 | 2011-05-11 | 三一电气有限责任公司 | Wind driven generator set and variable propeller pitch system thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10239366A1 (en) * | 2002-08-28 | 2004-03-11 | Klinger, Friedrich, Prof. Dr.-Ing. | Wind turbine |
| DE102004030929B3 (en) * | 2004-06-25 | 2005-10-20 | Repower Systems Ag | Wind power plant has generator installed on rotor side facing away from pod, and generator stator is fastened on journal extending from pod through rotor hub and serving as bearing for rotor |
| CN1719025A (en) * | 2005-07-14 | 2006-01-11 | 潍坊中云机器有限公司 | Split type permanent magnet synchronous wind driven electric generator |
| CN2828373Y (en) * | 2005-10-20 | 2006-10-18 | 罗卫城 | External rotor energy-saving wind-mill generator |
| CN201041134Y (en) * | 2007-05-24 | 2008-03-26 | 包头市汇全稀土实业（集团）有限公司 | Electromagnetic type variable propeller device of wind power generator |
-
2007
- 2007-05-24 CN CN200710109315XA patent/CN101139972B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745800A (en) * | 2008-11-17 | 2010-06-23 | 通用电气公司 | Method for mounting components at a wind turbine |
| CN101915211A (en) * | 2010-08-19 | 2010-12-15 | 三一电气有限责任公司 | Wind turbine generator system and pitch system applied to same |
| CN102052250A (en) * | 2011-01-21 | 2011-05-11 | 三一电气有限责任公司 | Wind driven generator set and variable propeller pitch system thereof |
| CN102052250B (en) * | 2011-01-21 | 2012-07-04 | 三一电气有限责任公司 | Wind driven generator set and variable propeller pitch system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101139972B (en) | 2011-01-26 |
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| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130524 |