CN201679627U - Wind turbine variable pitch control system utilizing super capacitor - Google Patents
Wind turbine variable pitch control system utilizing super capacitor Download PDFInfo
- Publication number
- CN201679627U CN201679627U CN2010200562913U CN201020056291U CN201679627U CN 201679627 U CN201679627 U CN 201679627U CN 2010200562913 U CN2010200562913 U CN 2010200562913U CN 201020056291 U CN201020056291 U CN 201020056291U CN 201679627 U CN201679627 U CN 201679627U
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- China
- Prior art keywords
- wind turbine
- control system
- ultracapacitor
- liquid pump
- power supply
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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
Abstract
The utility model relates to a wind turbine variable pitch control system utilizing a super capacitor. The control system comprises a brushless direct-current motor, a servo driver, the super capacitor, a liquid pump, a liquid storage device and a control component, wherein the brushless direct-current motor is used for changing pitches of blades of a wind turbine, the servo driver can be powered by an external power source and supply power to the brushless direct-current motor, the super capacitor is electrically connected with the servo driver, powered by the external power source and used for storing electric energy generated by the wind turbine, and supplying emergency spare power to the servo driver when the external power source is cut off, the liquid pump is connected with the brushless direct-current motor and driven by the same, the liquid storage device is communicated with the liquid pump and used for supplying liquid to the liquid pump, and the control component is connected with the liquid pump, is combined with the blades of the wind turbine and can change the pitches of the blades by adjusting directions of the blades via driving action of the liquid pump. The wind turbine variable pitch control system is accurate in control and can be used even when in power failure.
Description
Technical field
The utility model relates to a kind of control system, especially relates to a kind of wind turbine variable blade control system that uses ultracapacitor.
Background technique
Nowadays, wind turbine is considerably ripe.They typically are installed on the tower, and have a plurality of blades (being generally three) that are installed on the wheel shaft, to rotate around the horizontal axis with respect to the wheel cabin.The wheel cabin can be towards the direction of facining the wind.Each blade typically has variable pitch, and the pitch of each blade can be controlled independently of one another.These blades typically are set to the angle intervals with 120 degree.When a blade is downward, near the wind on ground typically less than the speed of the wind on two other blade.Therefore adjusting pitch need reach under the situation that is subjected to ground influence or gust influence and make that the rotational speed of wheel shaft is suitably constant.
Yet, in actual applications,, usually cause control accurate inadequately, and when outage, be difficult to wind turbine is proceeded operation only by the pitch of motor control wind turbine blade.
Therefore, main target of the present utility model provides a kind of wind turbine variable blade control system that uses ultracapacitor, especially the wind turbine variable blade control system that also can manipulate when outage.The utility model utilizes hydraulic pressure installation to realize the accurate control of wind turbine blade pitch.
Summary of the invention
Therefore, in order to solve the problems of the prior art, the purpose of this utility model provides a kind of control system, and a kind of wind turbine variable blade control system that uses ultracapacitor particularly is provided.Wind turbine variable blade control system of the present utility model can the outage situation under, the pitch of wind turbine blade is precisely controlled, and if power-off time long, can also in time close wind turbine.
For achieving the above object, the utility model provides a kind of wind turbine variable blade control system that uses ultracapacitor, and wherein, described control system comprises:
Brshless DC motor is used to change the pitch of the blade of wind turbine;
Servo driver, it can accept the power supply of external power supply, and can be to described brshless DC motor power supply;
Ultracapacitor, it is electrically connected with described servo driver, and accepts the power supply of described external power supply, is used for the electric energy that the generating of memory by using wind turbine produces, and when described external power supply cuts off the power supply, provides the emergency use electric energy to described servo driver;
Liquid pump, it links to each other with described brshless DC motor, is driven by described brushless current motor;
Liquid-storage container, it is communicated with described liquid pump, is used for to described liquid pump to supply refrigerant;
Manipulation component, it links to each other with described liquid pump, and is bonded to the blade of described wind turbine, adjusts the direction of described blade by the driving of described liquid pump, thereby changes the pitch of described blade.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described manipulation component comprises: cylinder body and the piston that is arranged in the described cylinder body, and described piston is bonded to the blade of described wind turbine; Wherein, described piston is divided into first chamber and second chamber with described cylinder body, and described first chamber and second chamber are communicated with described liquid pump with it respectively, accepts the hydraulic pressure output of described liquid pump.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described control system also comprises controller, and described controller is controlled the switch of valve in the connecting pipeline between described liquid pump and described first chamber and second chamber.
Further, in the wind turbine variable blade control system of described use ultracapacitor, the energy that the energy of described ultracapacitor is designed to provide sufficient is closed wind turbine.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described control system also comprises charhing unit, it links to each other with described servo driver with described ultracapacitor, is used to utilize the electric energy of described external power supply to described ultracapacitor and the charging of described servo driver.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described controller comprises the monitoring cell of the electric weight of monitoring described ultracapacitor, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is higher than a predetermined value, notifies described controller to control described operating component and makes the blade pitch of wind turbine change.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is lower than described predetermined value, notifies described controller to control described operating component and makes wind turbine close.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described wind turbine has three blades.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described operating component is arranged on the wheel shaft of wind turbine.
Further, in the wind turbine variable blade control system of described use ultracapacitor, described liquid pump is a reciprocating volumetric pump.
Use the wind turbine variable blade control system of use ultracapacitor of the present utility model, can the outage situation under, the pitch of wind turbine blade is precisely controlled, and if power-off time long, can also in time close wind turbine.In other words, the present invention creatively utilizes servo driver and hydraulic pressure installation accurately to control the pitch of wind turbine blade, thereby makes that the energy output of wind turbine is more stable.
Description of drawings
Fig. 1 is the structural representation according to the wind turbine variable blade control system of the use ultracapacitor of a mode of execution of the present utility model;
Fig. 2 is the structural representation according to the wind turbine variable blade control system of the use ultracapacitor of another mode of execution of the present utility model;
Fig. 3 is the structural representation according to the wind turbine variable blade control system of the use ultracapacitor of another mode of execution of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Fig. 1 has shown the structural representation according to the wind turbine variable blade control system of the use ultracapacitor of a mode of execution of the present utility model.
In the wind turbine variable blade control system of use ultracapacitor of the present utility model, comprising: brshless DC motor is used to change the pitch of the blade of wind turbine; Servo driver, it can accept the power supply of external power supply, and can be to described brshless DC motor power supply; Ultracapacitor, it is electrically connected with described servo driver, and accepts the power supply of described external power supply, is used for the electric energy that the generating of memory by using wind turbine produces, and when described external power supply cuts off the power supply, provides the emergency use electric energy to described servo driver; Liquid pump, it links to each other with described brshless DC motor, is driven by described brushless current motor; Liquid-storage container, it is communicated with described liquid pump, is used for to described liquid pump to supply refrigerant; Manipulation component, it links to each other with described liquid pump, and is bonded to the blade of described wind turbine, adjusts the direction of described blade by the driving of described liquid pump, thereby changes the pitch of described blade.
In a single day the situation of external power supply outage still takes place usually by external power source in servo driver, then by the ultracapacitor power supply, servo driver continues the function of execution adjusting vane pitch.If yet power-off time is long, servo driver in time began to carry out the task of closing wind turbine before the electric weight of ultracapacitor does not exhaust as yet.
Ultracapacitor is charged by external power supply when externally power supply has electricity, and externally during power cut-off, ultracapacitor serves as power supply to be used, and powers to servo driver.
In order accurately to control the pitch of wind turbine blade, the utility model has adopted the mode of motor and hydraulic pressure installation combination, therefore is provided with liquid pump and the manipulation component that is connected with liquid pump.By Electric Machine Control liquid pump and manipulation component, change the pitch of blade.
In the practice, in the wind turbine variable blade control system of use ultracapacitor described in the utility model, described manipulation component comprises: cylinder body and the piston that is arranged in the described cylinder body, and described piston is bonded to the blade of described wind turbine; Wherein, described piston is divided into first chamber and second chamber with described cylinder body, and described first chamber and second chamber are communicated with described liquid pump with it respectively, accepts the hydraulic pressure output of described liquid pump.
In this case, the hydraulic pressure output that liquid pump produces can enter in first chamber by pipeline, when hydraulic pressure output enters first chamber, piston can move the chamber of winning is enlarged, and it is opposite, when the hydraulic pressure output of liquid pump generation entered in second chamber by pipeline, piston can move the chamber of winning is dwindled.Therefore, by of the hydraulic pressure output of control liquid pump, just can make that piston moves, thereby drive the variation of blade pitch two chambers.
Preferably, in the wind turbine variable blade control system of described use ultracapacitor, described control system also comprises controller, and described controller is controlled the switch of valve in the connecting pipeline between described liquid pump and described first chamber and second chamber.By the control of controller, just can realize control to two chamber hydraulic pressure outputs to switch.
Preferably, in the wind turbine variable blade control system of described use ultracapacitor, the energy that the energy of described ultracapacitor is designed to provide sufficient is closed wind turbine.Like this, after can guaranteeing at least to cut off the power supply, ultracapacitor is enough to smoothly wind turbine cut out.
In the wind turbine variable blade control system of described use ultracapacitor, described control system also comprises charhing unit, it links to each other with described servo driver with described ultracapacitor, is used to utilize the electric energy of described external power supply to described ultracapacitor and the charging of described servo driver.That is to say that external power supply is powered to ultracapacitor and servo driver by charhing unit.
In the wind turbine variable blade control system of described use ultracapacitor, described controller comprises the monitoring cell of the electric weight of monitoring described ultracapacitor, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is higher than a predetermined value, notifies described controller to control described operating component and makes the blade pitch of wind turbine change.This predetermined value also is enough to wind turbine cuts out with remaining electric weight and exceeds.And monitoring cell can be determined the surplus electric weight of ultracapacitor by the voltage at monitoring ultracapacitor two ends.
In the wind turbine variable blade control system of described use ultracapacitor, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is lower than described predetermined value, notifies described controller to control described operating component and makes wind turbine close.
In the wind turbine variable blade control system of described use ultracapacitor, described wind turbine has three blades.
In the wind turbine variable blade control system of described use ultracapacitor, described operating component is arranged on the wheel shaft of wind turbine.In fact, also can be arranged in the wheel cabin.
In the wind turbine variable blade control system of described use ultracapacitor, described liquid pump is a reciprocating volumetric pump.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification and the mode of execution, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (10)
1. wind turbine variable blade control system that uses ultracapacitor is characterized in that described control system comprises:
Brshless DC motor is used to change the pitch of the blade of wind turbine;
Servo driver, it can accept the power supply of external power supply, and can be to described brshless DC motor power supply;
Ultracapacitor, it is electrically connected with described servo driver, and accepts the power supply of described external power supply, is used for the electric energy that the generating of memory by using wind turbine produces, and when described external power supply cuts off the power supply, provides the emergency use electric energy to described servo driver;
Liquid pump, it links to each other with described brshless DC motor, is driven by described brushless current motor;
Liquid-storage container, it is communicated with described liquid pump, is used for to described liquid pump to supply refrigerant;
Manipulation component, it links to each other with described liquid pump, and is bonded to the blade of described wind turbine, adjusts the direction of described blade by the driving of described liquid pump, thereby changes the pitch of described blade.
2. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1 is characterized in that, described manipulation component comprises:
Cylinder body and the piston that is arranged in the described cylinder body, described piston is bonded to the blade of described wind turbine;
Wherein, described piston is divided into first chamber and second chamber with described cylinder body, and described first chamber and second chamber are communicated with described liquid pump with it respectively, accepts the hydraulic pressure output of described liquid pump.
3. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 2, it is characterized in that, described control system also comprises controller, and described controller is controlled the switch of valve in the connecting pipeline between described liquid pump and described first chamber and second chamber.
4. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1 is characterized in that, the energy that the energy of described ultracapacitor is designed to provide sufficient is closed wind turbine.
5. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1, it is characterized in that, described control system also comprises charhing unit, it links to each other with described servo driver with described ultracapacitor, is used to utilize the electric energy of described external power supply to described ultracapacitor and the charging of described servo driver.
6. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1, it is characterized in that, described controller comprises the monitoring cell of the electric weight of monitoring described ultracapacitor, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is higher than a predetermined value, notifies described controller to control described operating component and makes the blade pitch of wind turbine change.
7. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 6, it is characterized in that, described monitoring cell is designed to when the electric weight that monitors described ultracapacitor is lower than described predetermined value, notifies described controller to control described operating component and makes wind turbine close.
8. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1 is characterized in that, described wind turbine has three blades.
9. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1 is characterized in that described operating component is arranged on the wheel shaft of wind turbine.
10. the wind turbine variable blade control system of use ultracapacitor as claimed in claim 1 is characterized in that, described liquid pump is a reciprocating volumetric pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200562913U CN201679627U (en) | 2010-01-08 | 2010-01-08 | Wind turbine variable pitch control system utilizing super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200562913U CN201679627U (en) | 2010-01-08 | 2010-01-08 | Wind turbine variable pitch control system utilizing super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679627U true CN201679627U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200562913U Expired - Lifetime CN201679627U (en) | 2010-01-08 | 2010-01-08 | Wind turbine variable pitch control system utilizing super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606397A (en) * | 2011-01-24 | 2012-07-25 | 维斯塔斯风力系统有限公司 | A wind turbine and a method for powering one or more hydraulic pitch actuators |
| CN109667714A (en) * | 2017-10-17 | 2019-04-23 | 新疆金风科技股份有限公司 | Fluid pressure pitch-controlled system and its control method |
-
2010
- 2010-01-08 CN CN2010200562913U patent/CN201679627U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606397A (en) * | 2011-01-24 | 2012-07-25 | 维斯塔斯风力系统有限公司 | A wind turbine and a method for powering one or more hydraulic pitch actuators |
| CN102606397B (en) * | 2011-01-24 | 2015-03-04 | 维斯塔斯风力系统有限公司 | A wind turbine and a method for powering one or more hydraulic pitch actuators |
| CN109667714A (en) * | 2017-10-17 | 2019-04-23 | 新疆金风科技股份有限公司 | Fluid pressure pitch-controlled system and its control method |
| CN109667714B (en) * | 2017-10-17 | 2020-01-31 | 新疆金风科技股份有限公司 | Hydrostatic variable-pitch system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shenzhen City High Tech Park in Guangdong province 518057 South Branch building room 306 building Patentee after: TIG TECHNOLOGY CO., LTD. Address before: Shenzhen City High Tech Park in Guangdong province 518057 South Branch building room 306 building Patentee before: Shenzhen City TIG New Energy Technologies Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |
|
| CX01 | Expiry of patent term |