CN1995746A - Electric control mechanism for stalled blade damper plate of wind-driven generator - Google Patents
Electric control mechanism for stalled blade damper plate of wind-driven generator Download PDFInfo
- Publication number
- CN1995746A CN1995746A CNA2006101675298A CN200610167529A CN1995746A CN 1995746 A CN1995746 A CN 1995746A CN A2006101675298 A CNA2006101675298 A CN A2006101675298A CN 200610167529 A CN200610167529 A CN 200610167529A CN 1995746 A CN1995746 A CN 1995746A
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- CN
- China
- Prior art keywords
- control mechanism
- damping plate
- electric control
- wind
- driven generator
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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 an electric control mechanism for damping plate of stalled blade in wind turbine, belonging to wind power generation area, characterized in that the guide head of lead screw is located in guide cylinder and connected with the lead screw, the lead screw is connected with nut and the nut is connected with the rotor of permanent magnet motor. There are no pressure and no leakage in the electric control mechanism for wind turbine. The electric control mechanism can not be influenced by climate and the maintenance cost is decreased greatly. The mechanism has big torque. When it does not act, there is no need to electrify to lock the damping plate tightly by big self-locking torque and electric energy exhausted for maintaining locking the damping plate is saved. The control circuit can be sent to actuator mechanism by electric collection ring. Compared with sending the control circuit to the actuator mechanism by hydraulic rotating joint, it is cheaper, simple and stable. The invention can adjust the torque and the speed automatically in random and it is the ideal control mechanism for damping plate of stalled blade in wind turbine.
Description
One, technical field
The present invention relates to a kind of electric control mechanism for stalled blade damper plate of wind-driven generator, belong to wind power generation field.
Two, background technique
The actuator of Stall Type wind power generator incorporated in power network is tension and the release by hydraulic jack control cable wire, when braking, must adopt the damping plate adjusting to reach the air damping braking of blade, all be a damping plate on the blade tip of each blade, damping plate is regained reach the release of damping plate by HYDRAULIC CONTROL SYSTEM after.Hydraulic system transfers must have swivel joint to connect to the blade of rotation, hydraulic jack must guarantee also that when wind-driven generator moves certain pressure makes damping plate be in the position of withdrawal, move so swivel joint and oil cylinder are in to have under the pressure situation always, occur the phenomenon that leakage of oil, oil cylinder and swivel joint damage so unavoidably.Owing to the greatest differences of summer in winter temperature, also great changes have taken place for the density of hydraulic oil in addition, and this has also further promoted leakage of oil and damage.
Three, summary of the invention
The technical problem that the present invention solves is: the electric control mechanism leakage of oil of wind-driven generator, moment is big, when being failure to actuate, not needing to switch on just to have very big self-locking moment to lock damping plate, can regulate a kind of electric control mechanism for stalled blade damper plate of wind-driven generator of moment and speed during operation automatically.
Technical solution: the screw mandrel guide head is positioned at guide cylinder, and the screw mandrel guide head is connected with screw mandrel, and screw mandrel is connected with nut, and nut is connected with rotor on the magneto.
The electric control mechanism of wind-driven generator of the present invention does not have pressure, does not have the leakage of oil problem, because hydraulic oil and variation of ambient temperature have much relations, often owing to the variation of summer in winter goes wrong, have to change hydraulic oil, and the electric control mechanism weatherproof has significantly reduced maintenance cost.Moment is big, and when being failure to actuate, not needing to switch on just to have very big self-locking moment to lock damping plate, has saved and has kept the spent electric energy of locking damping plate.Control wiring can be delivered to actuator by collector ring, and it is cheap more, simple, reliable to deliver to actuator than hydraulic rotary joint.The present invention can regulate moment and speed at any time automatically, is a kind of stalled blade damper plate of wind-driven generator ideal control mechanism.
Four, description of drawings
Accompanying drawing is a structural representation of the present invention;
Five, embodiment
With reference to accompanying drawing: on each blade tip of Stall Type wind-driven generator a slice damping plate is arranged, its predominant use is to use when resistance of air brakes.It is connected with actuator by cable wire, and cable wire is tightened up when wind-driven generator moves, and damping plate and blade are on same natural distortion face, just as a complete blade, execution architecture is put cable wire when need stop, and the damping plate rotation also produces damping, plays the effect of resistance of air brake.The present invention adopts electronic mode to control the tension and the release of cable wire.
Magneto of the present invention is formed rotor 6 and is formed whirligig in rare earth magnetic steel by electromagnetic coil and silicon steel plate, and screw mandrel 3 and nut 5 are formed spindle arrangement, and screw mandrel 3 is connected with the control cable wire, and nut 5 directly is connected with rotor 6.When the stator on the magneto obtains forward current, produce rotating magnetic field between the stator and drive rotor 6 rotations, nut 5 together rotates with rotor 6, because the effect of feather key on the screw mandrel guide head 1, screw mandrel 3 stretches out.When stator 6 obtains back current, rotor 6 counterrotatings, drive nut 5 opposite spins.Screw mandrel 3 withdrawals.Behind screw mandrel 3 in-positions,, when switching on, mechanism can not keep very big moment because the self-locking of screw mandrel 3 can be born very large moment yet.Because this mechanism works under rotation status, the power supply power supply adopts collector ring power supply or rotating part that powered battery is installed, and the wind-driven generator operation is more safe and reliable.The speed of rotor rotated 7 and moment can be adjusted by voltage or voltage and frequency.Displacement moment and speed can dynamically be controlled according to the requirement of damping plate.
Claims (1)
1, electric control mechanism for stalled blade damper plate of wind-driven generator, by screw mandrel guide head (1), guide cylinder (2), screw mandrel (3), magneto (4), it is characterized in that: screw mandrel guide head (1) is positioned at guide cylinder (2), screw mandrel guide head (1) is connected with screw mandrel (3), screw mandrel (3) is connected with nut (5), and nut (5) is connected with rotor (6) on the magneto (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101675298A CN1995746A (en) | 2006-12-26 | 2006-12-26 | Electric control mechanism for stalled blade damper plate of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101675298A CN1995746A (en) | 2006-12-26 | 2006-12-26 | Electric control mechanism for stalled blade damper plate of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1995746A true CN1995746A (en) | 2007-07-11 |
Family
ID=38250916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101675298A Pending CN1995746A (en) | 2006-12-26 | 2006-12-26 | Electric control mechanism for stalled blade damper plate of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1995746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204150A (en) * | 2013-03-26 | 2013-07-17 | 清华大学 | Integrated vehicle brake actuation device using center valve mechanism |
| CN107061163A (en) * | 2017-05-24 | 2017-08-18 | 南安市智德机械设备有限公司 | A kind of wind-driven generator with safety speed-limit function |
-
2006
- 2006-12-26 CN CNA2006101675298A patent/CN1995746A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204150A (en) * | 2013-03-26 | 2013-07-17 | 清华大学 | Integrated vehicle brake actuation device using center valve mechanism |
| CN107061163A (en) * | 2017-05-24 | 2017-08-18 | 南安市智德机械设备有限公司 | A kind of wind-driven generator with safety speed-limit function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |