CN102758726A - Variable pitch control system, variable pitch control method and wind generating set - Google Patents
Variable pitch control system, variable pitch control method and wind generating set Download PDFInfo
- Publication number
- CN102758726A CN102758726A CN2011101038375A CN201110103837A CN102758726A CN 102758726 A CN102758726 A CN 102758726A CN 2011101038375 A CN2011101038375 A CN 2011101038375A CN 201110103837 A CN201110103837 A CN 201110103837A CN 102758726 A CN102758726 A CN 102758726A
- Authority
- CN
- China
- Prior art keywords
- variable
- oar
- blade
- primary transducer
- pitch
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- 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 discloses a variable pitch control system, a variable pitch control method and a wind generating set. The variable pitch control system comprises a main controller, a variable pitch frequency converter component, variable pitch motors, variable pitch reducers and variable pitch bearings, wherein one variable pitch bearing corresponds to each blade; the plurality of variable pitch reducers are respectively driven by a plurality of variable pitch motor shafts; the plurality of variable pitch reducers are respectively meshed with one variable pitch bearing so as to drive the variable pitch bearing to rotate; and the variable pitch frequency converter component which corresponds to each blade comprises a plurality of frequency converters which comprise a master frequency converter and the rest of slave frequency converters and respectively drive the plurality of variable pitch motors. The variable pitch control on blades of a large or an extra-large wind generating set is realized on the basis of not adding electric and mechanical loads of the variable pitch motors and the variable pitch reducers.
Description
Technical field
The present invention relates to become the oar technology, relate to a kind of variable blade control system, pitch control method and wind power generating set especially.
Background technique
Wind-power electricity generation is to be converted into mechanical energy through the kinetic energy with air, and then is converted into electric energy, is the developing direction of with fastest developing speed and tool potentiality in the present new energy development field.But wind energy has very big randomness and uncontrollability as a kind of intermittent energy source.
The wave range of wind power generating set output power is bigger usually; Usually through the blade pitch angle on the variable blade control system adjustment wheel hub; At any time regulate propeller pitch angle according to change of wind velocity and control the wind energy that wind-driven generator absorbs; Thereby improve the efficient of whole wind power generating set, keep the power and the velocity-stabilization of wind power generating set, and can effectively reduce blower fan load.
Variable blade control system mainly comprises master controller, becomes the oar frequency variator, becomes oar motor, variable paddle speed reducer and pitch variable bearings etc.Master controller calculates the propeller pitch angle of requirement according to corresponding wind regime situation; Send instruction for then the pairing change oar of each blade frequency variator; Become the rotation of oar motor accordingly by becoming the oar Frequency Converter Control, and then drive the variable paddle speed reducer rotation, make blade rotation through the overhung pinion of variable paddle speed reducer and the rigid engagement of pitch variable bearings bull gear at last; Thereby make blade be in satisfied position, satisfy the requirement of change oar.
Increase the exploitation of and super sized type wind power generating set large-scale gradually with the sea along with the power of wind power generating set; The wind power generating set single-machine capacity constantly increases; The size of blade and weight also constantly increase; The power and the size of vane change devices such as the change oar motor in the whole variable blade control system, variable paddle speed reducer all can increase a lot, correspondingly the moment that becomes oar motor and variable paddle speed reducer is required and each item requirements such as the intensity of pitch variable bearings bull gear, hardness also in continuous lifting.
Change oar for a blade of large-scale or super large wind power generating set; Utilize single change oar motor and variable paddle speed reducer to be difficult to realize becoming effectively, efficiently oar; And also there are certain difficulty in research and development and manufacturing for its corresponding electric component and mechanical part; Not only cause to become oar choice of electrical machine, difficult installation, and later maintenance is also difficult, is unfavorable for development large-scale or the super sized type wind power generating set.
Summary of the invention
The present invention provides a kind of variable blade control system, pitch control method and wind power generating set, to realize the change oar control to large-scale or super sized type wind generator set blade.
One aspect of the present invention provides a kind of variable blade control system, and comprise master controller, become the oar frequency converter assembly, become oar motor, variable paddle speed reducer and pitch variable bearings,
The pitch variable bearings set corresponding to each blade is one, has a plurality of change oar motor shafts to drive a plurality of variable paddle speed reducers respectively, and a plurality of variable paddle speed reducers rotate to drive pitch variable bearings with a said pitch variable bearings engagement respectively;
The change oar frequency converter assembly corresponding with each blade comprises a plurality of frequency variators, and one of them is a primary transducer, and all the other are from frequency variator, drives said a plurality of change oar motor respectively;
Primary transducer comprises parameter forwarding module and frequency conversion drive module; Said frequency conversion drive module is used for having the controlling value of setup parameter according to the control command of said master controller to becoming the output of oar Electric Machine Control, and said parameter forwarding module is used for said setup parameter is transmitted to respectively from frequency variator;
The said setup parameter that is used for from frequency variator transmitting according to said primary transducer has the controlling value of said setup parameter to becoming oar Electric Machine Control output device.
The present invention provides a kind of pitch control method on the other hand, adopts variable blade control system provided by the invention to carry out, and said method comprises:
The present invention also provides a kind of wind power generating set on the other hand, comprises wheel hub, blade and generator, also comprises variable blade control system provided by the invention; Said pitch variable bearings links to each other with each blade respectively, to change the propeller pitch angle of said blade.
Variable blade control system provided by the invention, pitch control method and wind power generating set; On the basis that does not increase the electric and mechanical burden that becomes oar motor and variable paddle speed reducer; Realization is to the change oar control of large-scale or super sized type wind generator set blade; And reduced to become the physical dimension of vane change devices such as oar motor and variable paddle speed reducer, helped its installation and maintenance.
Description of drawings
The structural representation of the variable blade control system that Fig. 1 provides for the embodiment of the invention one;
The schematic representation of the part-structure of the variable blade control system that Fig. 2 provides for the embodiment of the invention one;
Fig. 3 is the sectional view of the A-A direction of Fig. 2;
The schematic representation of the part-structure of the variable blade control system that Fig. 4 provides for another embodiment of the present invention;
The structural representation of the variable blade control system that Fig. 5 provides for the embodiment of the invention two;
The structural representation of the variable blade control system that Fig. 6 provides for the embodiment of the invention three;
The structural representation of the variable blade control system that Fig. 7 provides for the embodiment of the invention four;
The flow chart of the pitch control method that Fig. 8 provides for the embodiment of the invention five;
The flow chart of the pitch control method that Fig. 9 provides for the embodiment of the invention six;
The flow chart of the pitch control method that Figure 10 provides for the embodiment of the invention seven.
Reference character:
The 1-master controller; 2-becomes the oar frequency converter assembly; 3-becomes the oar motor;
The 4-variable paddle speed reducer; The 5-pitch variable bearings; The 6-blade;
The 7-wheel hub; The 21-primary transducer; 22-is from frequency variator;
The 41-small gear; 51-bull gear inner ring; 52-bull gear outer ring;
The 81-first detection module; 82-second testing module; 91-first comparison module;
92-second comparison module.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technological scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The embodiment of the invention one provides a kind of variable blade control system; The structural representation of the variable blade control system that Fig. 1 provides for the embodiment of the invention one; The schematic representation of the part-structure of the variable blade control system that Fig. 2 provides for the embodiment of the invention one, Fig. 3 are the sectional view of the A-A direction of Fig. 2.
With reference to Fig. 1, Fig. 2 and shown in Figure 3, this variable blade control system comprises master controller 1, becomes oar frequency converter assembly 2, becomes oar motor 3, variable paddle speed reducer 4 and pitch variable bearings 5.
Corresponding to each blade 6 set pitch variable bearings 5 is one, has a plurality of change oar motors 3 to drive a plurality of variable paddle speed reducers 4, and a plurality of variable paddle speed reducers 4 rotate to drive pitch variable bearings 5 with 5 engagements of a pitch variable bearings respectively.
Comprise a plurality of frequency variators with each blade 6 corresponding change oar frequency converter assembly 2, a plurality of frequency variators are fixedly connected on the wheel hub 7, and one of them is a primary transducer 21, and all the other are from frequency variator 22, drive a plurality of change oar motors 3 respectively.
Master controller 1 is fixedly connected on the wheel hub 7, adopts PLC as master controller 1 usually, perhaps adopts computer; Master controller 1 is according to the information such as wind speed, wind-power electricity generation acc power and wind-driven generator rotating speed that collect and adopt the setting computation schemes to go out the change oar expected value of blade; This change oar expected value is generally the propeller pitch angle of blade, and master controller 1 will become the oar expected value and be converted into control command to send to primary transducer 21.
Between primary transducer 21 and the master controller 1, and primary transducer 21 with from being connected through the CAN bus usually between the frequency variator 22, can certainly adopt other communication mode, be not limited to present embodiment.
Become oar motor 3 and connect one to one with each frequency variator, the rotation of the change oar motor 3 that one of each frequency variator may command is attached thereto can certainly be controlled many change oar motors and rotate, and is not limited to present embodiment.
The axle of variable paddle speed reducer 4 connects one to one with becoming the oar motor shaft, and change oar motor 3 drives the variable paddle speed reducer 4 that is attached thereto and rotates, and the outer small gear 41 that stretches to of many variable paddle speed reducers 4 all is meshed with the bull gear inner ring 51 of a pitch variable bearings 5.
The bull gear outer ring 52 of pitch variable bearings 5 is fixed on the wheel hub 7; Be fixedly connected with a blade 6 on the bull gear inner ring 51 of pitch variable bearings 5; Outer engagement driving of stretching to the bull gear inner ring 51 of a small gear 41 and a pitch variable bearings 5 through many variable paddle speed reducers 4 makes blade 6 change into the expectation propeller pitch angle, realizes becoming the purpose of oar.
Be used for having the controlling value of setup parameter to becoming the 3 control outputs of oar motor from frequency variator 22 according to the setup parameter of primary transducer 21 forwardings.
This setup parameter is to make frequency variator export the Control Parameter of certain controlling value, can be not limited to present embodiment for the electric current input value of frequency variator or voltage input value etc.This controlling value with setup parameter is that Frequency Converter Control becomes output voltage values or the current value that the oar motor rotates; Generally include amplitude, phase place, frequency of output voltage or the electric current of frequency variator etc.; Frequency variator is controlled becoming oar rotating speed of motor and rotation angle through the control to output voltage values or current value, and then makes change oar motor arrive the relevant position.
The working procedure of this variable blade control system is:
Owing to become the initial position that the oar motor has setting when mounted; This initial position is for becoming the initial position of oar motor with respect to pairing control blade; Relative initial position had a relative position after change oar motor turned an angle; The rotation that becomes the oar motor through control can make relative position change, and then makes change oar motor arrive corresponding position, and the control blade changes propeller pitch angle.
Master controller is given the frequency conversion drive module of primary transducer according to the change oar expected value sending controling instruction that calculates; The frequency conversion drive module has the controlling value of setup parameter according to the control command that receives to the change oar motor output that is attached thereto; The change oar motor that links to each other with primary transducer is exported certain rotating speed and rotation angle according to this controlling value, and arrives corresponding position.
The parameter forwarding module of primary transducer is transmitted to this setup parameter respectively from frequency variator simultaneously; The setup parameter of respectively transmitting according to primary transducer from frequency variator has the controlling value of setup parameter to becoming the output of oar Electric Machine Control; Export certain rotating speed and rotation angle with the change oar motor that links to each other from frequency variator according to this controlling value, and arrive corresponding position.
Owing to the controlling value that becomes the output of oar motor being consistent from frequency variator and primary transducer, respectively become oar motor maintenance rotation synchronously thereby make, export identical rotating speed and rotation angle; Owing to become between oar motor, variable paddle speed reducer and the pitch variable bearings to being rigidly connected; Respectively become the equilibrium of oar motor output torque as long as make, it is balanced to guarantee respectively to become oar motor output power, thereby prevents to cause change oar motor overheating because of each change oar power of motor is unbalanced even burn; Because of becoming the oar motor, each keeps rotating synchronously simultaneously; And then make each variable paddle speed reducer that respectively becomes the oar Electric Machine Control keep rotating synchronously, and then make the outer bull gear inner ring that stretches to a pitch variable bearings of small gear synchronous drive of many variable paddle speed reducers, make many variable paddle speed reducers cooperate consistent to the driving of a pitch variable bearings; Finally make blade change propeller pitch angle, reach the requirement that becomes oar.
Can know by technique scheme; The variable blade control system that the embodiment of the invention provides; The pitch variable bearings that each blade is corresponding has two change oar motors at least and two variable paddle speed reducers drive; Therefore intensity and other that become power, physical dimension, the small gear of oar motor and variable paddle speed reducer require to have a change oar motor and a variable paddle speed reducer drives with respect to each blade in the past, all can fall on a year-on-year basis, though the increase of the power of wind power generating set; But the single change oar motor of corresponding each blade and the driving power of variable paddle speed reducer need not increase even can reduce; Each item of pitch variable bearings bull gear requires also can therefore not increase, so variable blade control system provided by the invention, on the basis that does not increase the electric and mechanical burden that becomes oar motor and variable paddle speed reducer; Realization is to the change oar control of large-scale or super sized type wind generator set blade; And can reduce the physical dimension that becomes oar motor and variable paddle speed reducer, help its installation and maintenance, also help development large-scale or super sized type power wind power generating set.
Embodiment two
The structural representation of the variable blade control system that Fig. 5 provides for the embodiment of the invention two, as shown in Figure 5, on the basis of the foregoing description one, further, this variable blade control system also is provided with the first detection module 81 and first comparison module 91.
Embodiment three
The technological scheme of the foregoing description two is the scheme that comprises the closed loop control that becomes oar motor position feedback; The structural representation of the variable blade control system that Fig. 6 provides for the embodiment of the invention three; Adopt feedback pitch variable bearings position to form the scheme of closed loop control; As shown in Figure 6, on the basis of the foregoing description one, this variable blade control system also comprises second testing module 82 and second comparison module 92.
The function of above-mentioned computing module, first comparison module and second comparison module can be that the function module that is built in the primary transducer realizes, or through independent function module being set to realize above-mentioned function.The first detection module and second testing module can adopt realizations such as sensor, photoelectric encoder or rotary transformer, and first comparison module and second comparison module can adopt the mode of comparison circuit or software to realize, are not limited to present embodiment.
Become the oar motor probably because of receiving the interference of other factors in the transmission process; Or, become output expectation rotating speed and rotation angle that the oar motor can not be realized ideal under the control of the controlling value that frequency variator is exported, and reach desired locations because of becoming reasons such as friction of oar motor itself or loss; Can there be deviation between the actual current location of change oar motor and the desired locations; Therefore adopt close-loop control mode, compare with the generation deviation signal, make primary transducer adjust setup parameter according to deviation signal through the change oar motor that will feed back or the current location and the desired locations of pitch variable bearings; And then adjustment is to becoming the controlling value of oar motor; Thereby the adjustment of each frequency variator respectively becomes the oar motor and pitch variable bearings is constantly adjusted current location to becoming the controlling value of oar motor, making, and finally makes the respective vanes that respectively becomes the oar Electric Machine Control change into the expectation propeller pitch angle.
Each layout that becomes oar motor and variable paddle speed reducer can adopt multiple mode; Can be arranged side by side or several angle setting at interval; On the basis of the foregoing description, preferably, the outer even separation of circumference of stretching to small gear of each variable paddle speed reducer that each blade is corresponding along the bull gear inner ring of pitch variable bearings; Evenly distribute with the driving force of each variable paddle speed reducer so that respectively become the oar motor, improve the stability of whole variable blade control system pitch variable bearings.
Number for becoming the frequency variator that comprises in the oar frequency converter assembly can be decided according to the actual requirements; In the present embodiment; Preferably, comprise two frequency variators in the change oar frequency converter assembly, become oar motor 3 and two variable paddle speed reducers 4 and be two; As shown in Figures 2 and 3, two variable paddle speed reducers 4 outer stretches to small gear 41 and evenly arranges along the circumference of the bull gear inner ring 51 of pitch variable bearings 5 180 degree of being separated by.
Adopt above-mentioned set-up mode; Become oar motor and variable paddle speed reducer and drive the center symmetry with respect to becoming oar; Make change oar driving force form a pair of couple; The radial load of cancelling out each other can reduce and become oar motor and the additional load of variable paddle speed reducer to pitch variable bearings bull gear and wheel hub generation, can prolong the working life of pitch variable bearings.
A kind of in addition preferred scheme does; Become in the oar frequency converter assembly and comprise three frequency variators; Become the oar motor and be three with variable paddle speed reducer, as shown in Figure 4, three variable paddle speed reducers 4 outer stretches to small gear 41 along the circumference of the bull gear inner ring 51 of the pitch variable bearings 5 evenly layout of 120 degree of being separated by.
Embodiment four
The structural representation of the variable blade control system that Fig. 7 provides for the embodiment of the invention four, as shown in Figure 7, have three blades 6 in this variable blade control system; Comprising three covers becomes the oar frequency converter assembly, becomes oar motor 3 and variable paddle speed reducer 4; Corresponding each blade 6 is provided with a pitch variable bearings 5, and each blade 6 corresponding change oar motor 3 is two with variable paddle speed reducer 4, comprises two frequency variators in each change oar frequency converter assembly; One of them is a primary transducer 21; Another one is from frequency variator 22, and each primary transducer 21 links to each other from frequency variator 22 with one, a change oar of each Frequency Converter Control motor 3.Each primary transducer 21 and one that is attached thereto two variable paddle speed reducers 4 and pitch variable bearings 5 engagements from frequency variator 22 corresponding controls connect a blade 6 on each pitch variable bearings 5.
Master controller 1 calculates three blades 6 respectively and becomes the oar expected value; And convert control command to according to the change oar expected value of three blades 6 respectively to three primary transducer 21; Each primary transducer 21 has the controlling value of setup parameter according to the control command that receives to the change oar motor that is attached thereto 3 outputs; The change oar motor 3 that links to each other with this primary transducer 21 rotates according to controlling value; The parameter forwarding module of this primary transducer 21 is transmitted to be attached thereto one from frequency variator 22 with this setup parameter simultaneously, rotates according to controlling value from the change oar motor 3 that frequency variator 22 links to each other with this.
Every primary transducer 21 be attached thereto two change oar motors 3 from frequency variator 22 controls owing to have identical controlling value; Therefore per two change oar motors 3 can be realized synchronous rotation; Thereby per two change oar motors 3 drive two variable paddle speed reducers 4 that are attached thereto and rotate; Drive a pitch variable bearings 5 through two variable paddle speed reducers 4 and rotate, thereby make each blade 6 on each pitch variable bearings 5 change into the expectation propeller pitch angle, realize becoming the purpose of oar.
The foregoing description is a kind of embodiment of variable blade control system provided by the invention; The tricks of change oar frequency converter assembly, change oar motor and variable paddle speed reducer is set according to the number correspondence of the blade in the wind power generating set in the practical application usually; Also can be provided with, be not limited to present embodiment according to other actual demand.
Embodiment five
The embodiment of the invention five provides a kind of pitch control method, and the variable blade control system that adopts the embodiment of the invention to provide is carried out, and the flow chart of the pitch control method that Fig. 8 provides for the embodiment of the invention five is as shown in Figure 8, comprises the steps:
This pitch control method is the manner of execution of above-mentioned variable blade control system; Make the corresponding oar motor that respectively becomes of each blade keep rotating synchronously; Export identical rotating speed and rotation angle, it is balanced to guarantee respectively to become oar motor output power, and then makes many variable paddle speed reducers cooperate consistent to the driving of a pitch variable bearings; Reach coordination control, guarantee the reliable and stable operation of variable blade control system blade.
Embodiment six
The flow chart of the pitch control method that Fig. 9 provides for the embodiment of the invention six; As shown in Figure 9, on the basis of the foregoing description five, further; Adopt feedback to become the method for the closed loop control of oar motor position, this pitch control method also comprises after step 105:
The flow chart of the pitch control method that Figure 10 provides for the embodiment of the invention seven; Shown in figure 10, on the basis of the foregoing description five, further; Adopt feedback pitch variable bearings position to form the pitch control method of closed loop control, this pitch control method also comprises after step 105:
The current location of step 301, detection pitch variable bearings;
Step 302, the current location of pitch variable bearings and desired locations are compared producing deviation signal, and send deviation signal to primary transducer;
Step 303, primary transducer are adjusted setup parameter according to deviation signal, return execution in step 103 again.
The pitch control method that the foregoing description six and embodiment seven provide; Current location and desired locations through the change oar motor that will feed back or pitch variable bearings compare to produce deviation signal; And according to deviation signal adjustment setup parameter, and then adjustment respectively becomes the oar motor and pitch variable bearings is constantly adjusted current location to becoming the controlling value of oar motor, making; Finally make the respective vanes that respectively becomes the oar Electric Machine Control change into the expectation propeller pitch angle, improved the change oar control performance of variable blade control system.
The embodiment of the invention also provides a kind of wind power generating set, comprises wheel hub, blade and generator, also comprises the variable blade control system that the embodiment of the invention provides, and said pitch variable bearings links to each other with each blade respectively, to change the propeller pitch angle of blade.
The wind power generating set that the embodiment of the invention provides; On the basis that does not increase the electric and mechanical burden that becomes oar motor and variable paddle speed reducer; Realization is to the change oar control of large-scale or super sized type wind generator set blade, for development large-scale or super sized type power wind power generating set provides strong condition.
What should explain at last is: above embodiment is only in order to explaining technological scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technological scheme of relevant art scheme.
Claims (9)
1. a variable blade control system comprises master controller, becomes the oar frequency converter assembly, becomes oar motor, variable paddle speed reducer and pitch variable bearings, it is characterized in that:
The pitch variable bearings set corresponding to each blade is one, has a plurality of change oar motor shafts to drive a plurality of variable paddle speed reducers respectively, and a plurality of variable paddle speed reducers rotate to drive pitch variable bearings with a said pitch variable bearings engagement respectively;
The change oar frequency converter assembly corresponding with each blade comprises a plurality of frequency variators, and one of them is a primary transducer, and all the other are from frequency variator, drives said a plurality of change oar motor respectively;
Said primary transducer comprises parameter forwarding module and frequency conversion drive module; Said frequency conversion drive module is used for having the controlling value of setup parameter according to the control command of said master controller to becoming the output of oar Electric Machine Control, and said parameter forwarding module is used for said setup parameter is transmitted to respectively from frequency variator;
The said setup parameter that is used for from frequency variator transmitting according to said primary transducer has the controlling value of said setup parameter to becoming oar Electric Machine Control output device.
2. according to the said variable blade control system of claim 1, it is characterized in that, also comprise:
First detection module is connected between the change oar motor and first comparison module of said primary transducer control, is used for the current location of detected change oar motor is fed back to first comparison module;
First comparison module; Link to each other with said primary transducer; Current location and the desired locations that is used for becoming the oar motor compares producing deviation signal, and sends deviation signal to primary transducer, adjusts said setup parameter to indicate said primary transducer according to deviation signal.
3. according to the said variable blade control system of claim 1, it is characterized in that, also comprise:
Second testing module is connected between the said pitch variable bearings and second comparison module, is used for the current location of detected pitch variable bearings is fed back to second comparison module;
Second comparison module; Link to each other with said primary transducer; Be used for the current location and the desired locations of pitch variable bearings are compared with the generation deviation signal, and send deviation signal to primary transducer, adjust said setup parameter according to deviation signal to indicate said primary transducer.
4. according to the said variable blade control system of the arbitrary claim of claim 1～3, it is characterized in that:
The quantity of said change oar frequency converter assembly, change oar motor and variable paddle speed reducer is two cover or three covers, and each said change oar frequency converter assembly comprises two or three frequency variators.
5. according to the said variable blade control system of the arbitrary claim of claim 1～3, it is characterized in that:
The outer even separation of circumference of stretching to small gear of each variable paddle speed reducer that each blade is corresponding along the bull gear inner ring of pitch variable bearings.
6. a pitch control method adopts the described variable blade control system of claim 1 to carry out, and it is characterized in that said method comprises:
Step 101, master controller are calculated the change oar expected value of blade, and will become the oar expected value and be converted into the primary transducer that control command sends to each blade correspondence;
Step 102, each primary transducer produce according to said control command and drive the setup parameter that becomes the oar motor;
Step 103, primary transducer are transmitted to said setup parameter corresponding respectively from frequency variator;
Step 104, each primary transducer have the controlling value of setup parameter to becoming the output of oar Electric Machine Control, and the setup parameter of respectively transmitting according to said primary transducer from frequency variator has the controlling value of said setup parameter to becoming oar Electric Machine Control output device;
Step 105, respectively become each variable paddle speed reducer that the oar driven by motor is attached thereto and rotate, a plurality of variable paddle speed reducers rotate and change propeller pitch angle to drive pitch variable bearings with a said pitch variable bearings engagement respectively.
7. pitch control method according to claim 6 is characterized in that, also comprises after the said step 105:
Step 201, detection become the current location of oar motor;
Step 202, the current location that will become the oar motor and desired locations compare with the generation deviation signal, and send deviation signal to primary transducer;
Step 203, primary transducer are adjusted said setup parameter according to deviation signal, return execution in step 103 again.
8. pitch control method according to claim 6 is characterized in that, also comprises after the said step 105:
The current location of step 301, detection pitch variable bearings;
Step 302, the current location of pitch variable bearings and desired locations are compared producing deviation signal, and send deviation signal to primary transducer;
Step 303, primary transducer are adjusted said setup parameter according to deviation signal, return execution in step 103 again.
9. a wind power generating set comprises wheel hub, blade and generator, it is characterized in that: also wrap 7 and draw together the arbitrary described variable blade control system of claim 1～5; Said pitch variable bearings links to each other with each blade respectively, to change the propeller pitch angle of said blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101038375A CN102758726A (en) | 2011-04-25 | 2011-04-25 | Variable pitch control system, variable pitch control method and wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101038375A CN102758726A (en) | 2011-04-25 | 2011-04-25 | Variable pitch control system, variable pitch control method and wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758726A true CN102758726A (en) | 2012-10-31 |
Family
ID=47053322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101038375A Pending CN102758726A (en) | 2011-04-25 | 2011-04-25 | Variable pitch control system, variable pitch control method and wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758726A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090514A (en) * | 2014-07-17 | 2014-10-08 | 南京铁道职业技术学院 | Master-slave type frequency converting control system and control method based on single-chip microcomputer |
| CN106246463A (en) * | 2016-07-19 | 2016-12-21 | 沈阳华创风能有限公司 | The test system of wind generating set pitch control system and appraisal procedure |
| CN108240285A (en) * | 2016-12-23 | 2018-07-03 | 穆格昂纳公司 | For controlling the method for wind turbine in the case where increasing safety |
| CN109356789A (en) * | 2018-11-07 | 2019-02-19 | 中国矿业大学 | It is a kind of that pitch-variable system and optimum design method are directly driven based on digital twin blower |
| CN109818486A (en) * | 2017-11-20 | 2019-05-28 | 维谛技术有限公司 | The hot redundancy control method of frequency converter and redundancy frequency-converter device |
| CN110925135A (en) * | 2019-12-06 | 2020-03-27 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch motor selection method, device, equipment and storage medium |
| CN113027681A (en) * | 2019-12-25 | 2021-06-25 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
| CN115750207A (en) * | 2022-11-24 | 2023-03-07 | 华能四平风力发电有限公司 | Overspeed-preventing yaw lifting device for wind turbine generator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2830362Y (en) * | 2005-07-07 | 2006-10-25 | 沈阳理工大学 | Tower crane turning gear controlled by converter |
| DE102007049368A1 (en) * | 2006-11-19 | 2008-05-21 | Setec Gmbh | Load limiting device for wind turbine, has mechanical safety drive to receive energy from hub or parts connected with drive, and defining unit to define mechanically actuated uncoupling of torque in rim position of rotor blade |
| US7513742B2 (en) * | 2004-10-14 | 2009-04-07 | General Electric Company | Pitch drive system for a wind turbine |
| CN101476541A (en) * | 2008-12-26 | 2009-07-08 | 华锐风电科技有限公司 | Independent variable oar control system and control method for wind generator set |
| US20090232652A1 (en) * | 2008-03-12 | 2009-09-17 | Nordex Energy Gmbh | Method and apparatus for rotating a component of a wind energy plant |
| US20100135808A1 (en) * | 2009-09-30 | 2010-06-03 | Dieter Hermann Benno Wiebrock | Systems and methods for assembling a pitch assembly for use in a wind turbine |
| CN201507394U (en) * | 2009-09-28 | 2010-06-16 | 国网电力科学研究院 | Variable pitch control device for wind generating set |
| CN201554599U (en) * | 2009-06-09 | 2010-08-18 | 许继集团有限公司 | Wind-driven generator and yaw system thereof |
| CN101975142A (en) * | 2010-11-12 | 2011-02-16 | 北京华电天仁电力控制技术有限公司 | Active pitch control system of wind driven generator with special working condition processing logic |
-
2011
- 2011-04-25 CN CN2011101038375A patent/CN102758726A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7513742B2 (en) * | 2004-10-14 | 2009-04-07 | General Electric Company | Pitch drive system for a wind turbine |
| CN2830362Y (en) * | 2005-07-07 | 2006-10-25 | 沈阳理工大学 | Tower crane turning gear controlled by converter |
| DE102007049368A1 (en) * | 2006-11-19 | 2008-05-21 | Setec Gmbh | Load limiting device for wind turbine, has mechanical safety drive to receive energy from hub or parts connected with drive, and defining unit to define mechanically actuated uncoupling of torque in rim position of rotor blade |
| US20090232652A1 (en) * | 2008-03-12 | 2009-09-17 | Nordex Energy Gmbh | Method and apparatus for rotating a component of a wind energy plant |
| CN101476541A (en) * | 2008-12-26 | 2009-07-08 | 华锐风电科技有限公司 | Independent variable oar control system and control method for wind generator set |
| CN201554599U (en) * | 2009-06-09 | 2010-08-18 | 许继集团有限公司 | Wind-driven generator and yaw system thereof |
| CN201507394U (en) * | 2009-09-28 | 2010-06-16 | 国网电力科学研究院 | Variable pitch control device for wind generating set |
| US20100135808A1 (en) * | 2009-09-30 | 2010-06-03 | Dieter Hermann Benno Wiebrock | Systems and methods for assembling a pitch assembly for use in a wind turbine |
| CN101975142A (en) * | 2010-11-12 | 2011-02-16 | 北京华电天仁电力控制技术有限公司 | Active pitch control system of wind driven generator with special working condition processing logic |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090514B (en) * | 2014-07-17 | 2017-02-15 | 南京铁道职业技术学院 | Master-slave type frequency converting control system and control method based on single-chip microcomputer |
| CN104090514A (en) * | 2014-07-17 | 2014-10-08 | 南京铁道职业技术学院 | Master-slave type frequency converting control system and control method based on single-chip microcomputer |
| CN106246463A (en) * | 2016-07-19 | 2016-12-21 | 沈阳华创风能有限公司 | The test system of wind generating set pitch control system and appraisal procedure |
| US11156205B2 (en) | 2016-12-23 | 2021-10-26 | Keba Industrial Automation Germany Gmbh | Method for controlling a wind turbine with increased safety |
| CN108240285A (en) * | 2016-12-23 | 2018-07-03 | 穆格昂纳公司 | For controlling the method for wind turbine in the case where increasing safety |
| CN109818486A (en) * | 2017-11-20 | 2019-05-28 | 维谛技术有限公司 | The hot redundancy control method of frequency converter and redundancy frequency-converter device |
| CN109818486B (en) * | 2017-11-20 | 2020-09-29 | 维谛技术有限公司 | Frequency converter thermal redundancy control method and redundancy frequency converter device |
| CN109356789A (en) * | 2018-11-07 | 2019-02-19 | 中国矿业大学 | It is a kind of that pitch-variable system and optimum design method are directly driven based on digital twin blower |
| CN110925135A (en) * | 2019-12-06 | 2020-03-27 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch motor selection method, device, equipment and storage medium |
| CN110925135B (en) * | 2019-12-06 | 2021-02-02 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch motor selection method, device, equipment and storage medium |
| CN113027681A (en) * | 2019-12-25 | 2021-06-25 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
| CN113027681B (en) * | 2019-12-25 | 2022-06-28 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and computer equipment |
| CN115750207A (en) * | 2022-11-24 | 2023-03-07 | 华能四平风力发电有限公司 | Overspeed-preventing yaw lifting device for wind turbine generator |
| CN115750207B (en) * | 2022-11-24 | 2024-02-20 | 华能四平风力发电有限公司 | Overspeed yaw prevention lifting device for wind turbine generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102758726A (en) | Variable pitch control system, variable pitch control method and wind generating set | |
| US3974396A (en) | Electric generator arrangement | |
| CN102483043B (en) | Wind power plant and method for controlling the operation of a wind power plant | |
| US20110206517A1 (en) | Transmission device for a machine for producing electricity from a variable speed motive power source, unit for producing electricity and wind turbine both so equipped, and method of setting a transmission ratio | |
| KR20070047303A (en) | Power train for a wind power plant | |
| CN101050753A (en) | Control system for wind turbine with hydrodynamic transmission | |
| EP2834518B1 (en) | Rpm controlled wind power generation system | |
| Jelaska et al. | A novel hybrid transmission for variable speed wind turbines | |
| CN203335328U (en) | Small-sized stepless speed change type self-speed-regulating wind driven generator | |
| CN201050444Y (en) | Wind-driven generator variable pitch control system | |
| CN102810939A (en) | Speed-self-regulating synchronous generating system | |
| DK2594819T3 (en) | Splitbelastningsstigearkasse and method for operating a transmission | |
| CN202362140U (en) | Loading device of variable-pitch test system for wind turbine generator systems | |
| CN102269123A (en) | Wind power generation device | |
| US10018182B2 (en) | Turbine driven by wind or motor and method for generating electricity | |
| CN102324801B (en) | Wind-power generating set | |
| CN103967721A (en) | Wind generating set | |
| CN103470720A (en) | Low-speed-ratio hydraulic torque converter and guide blade regulating method | |
| CN102013762A (en) | Variable speed constant frequency device of wind turbine generator set | |
| KR20100069083A (en) | Wind turbine equipment | |
| CN101546982B (en) | Power generating set outputting at fixed rotating speed | |
| CN205370848U (en) | Wind -powered electricity generation becomes servo drive of oar system | |
| CN101865083B (en) | Separation type stepless driving power generating device | |
| CN102562471B (en) | The constant speed system and method that machinery exports is provided in the machine | |
| CN107588175B (en) | Differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system and method |
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 |
Application publication date: 20121031 |