CN206290365U - A kind of pitch system of wind driven generator detection means - Google Patents
A kind of pitch system of wind driven generator detection means Download PDFInfo
- Publication number
- CN206290365U CN206290365U CN201621324450.7U CN201621324450U CN206290365U CN 206290365 U CN206290365 U CN 206290365U CN 201621324450 U CN201621324450 U CN 201621324450U CN 206290365 U CN206290365 U CN 206290365U
- Authority
- CN
- China
- Prior art keywords
- pitch
- variable frequency
- frequency drives
- detection means
- maintenance
- 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.)
- Expired - Fee Related
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Classifications
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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 belongs to technical field of wind power generation, more particularly to a kind of pitch system of wind driven generator detection means, is used to solve prior art wind generator pitch-controlled system trouble unit undetectable technical problem after maintenance.The device includes：Pitch control device, variable frequency drives, pitch motor and angular encoder are linked in sequence；Variable frequency drives are connected by wave filter with 220V power supplys；Pitch motor forms closed loop feedback by speed encoder with variable frequency drives.Compared with prior art, detection means of the present utility model can detect that judge whether to repair successfully, successfully original trouble unit puts back into make maintenance, reduces equipment cost, has saved resource to the pitch-controlled system part after maintenance.
Description
Technical field
The utility model belongs to technical field of wind power generation, more particularly to a kind of pitch system of wind driven generator detection dress
Put.
Background technology
In wind power industry, wind-driven generator has fixed pitch type and feather type, recently as wind-power electricity generation
The development of technology and the expansion of wind power plant scale, feather type almost occupy leading position.The spy of pitch-controlled wind-driven generator
Point is that the rotating speed and angle of blade can be adjusted according to the change of wind speed and load, to realize optimal wind energy utilization.Become
The blade adjustment of pitch type, is that, come control realization, pitch-controlled system belongs to servo-control system by pitch-controlled system, is one
Complete closed-loop control system, including pitch motor, variable frequency drives, pitch control device etc., if therefore system in any one
Part is out of order, and whole system all will be unable to operating.Because whether original trouble unit cannot be detected by being tieed up after maintenance
Accomplish work(, existing fault handling method is directly abandoned faulty part all based on replacement, and is replaced with new part
Original trouble unit is changed, such way causes the wasting of resources, and increased equipment cost, therefore, needing one kind badly can
Whether detection repairs successful detection means by the pitch-controlled system trouble unit of maintenance.
The content of the invention
To solve prior art wind generator pitch-controlled system trouble unit undetectable technical problem after maintenance,
The utility model provides a kind of pitch system of wind driven generator detection means, to reduce equipment cost, economizes on resources.
In order to solve the above technical problems, the utility model provides a kind of pitch system of wind driven generator detection means, including：
Pitch control device, variable frequency drives, pitch motor and angular encoder are linked in sequence；Variable frequency drives pass through wave filter and 220V
Power supply is connected；Pitch motor forms closed loop feedback by speed encoder with variable frequency drives.
The utility model beneficial effect includes：
With directly the part that pitch-controlled system breaks down is abandoned in the prior art, and with original former of new part replacement
The way for hindering part is compared, and detection means of the present utility model can be detected to the pitch-controlled system part after maintenance, is judged
Whether maintenance is successful, and successfully original trouble unit puts back into make maintenance, reduces equipment cost, has saved resource.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Description of reference numerals：1 pitch control device；2 variable frequency drives；3 speed encoders；4 pitch motors；5 angular codings
Device；6 wave filters；7 220V power supplys.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail with specific embodiment.
Refering to shown in Fig. 1, pitch system of wind driven generator detection means, including：Pitch control device 1, variable frequency drives 2,
Pitch motor 4 and angular encoder 5 are linked in sequence；Variable frequency drives 4 are connected by wave filter 6 with 220V power supplys 7；Pitch motor
4 form closed loop feedback by speed encoder 3 with variable frequency drives 2.
Wherein, pitch motor 4 is direct current generator, it is impossible to be directly connected to power frequency supply, it is necessary to pass through the drive of variable frequency drives 2
It is dynamic to work.The power supply of variable frequency drives 2 after power frequency supply signal is filtered, it is necessary to could supply.Pitch control device 1 possesses
Control function, can output control signal, that is, enable signal, control the break-make of variable frequency drives 2, pitch control device 1 can also
Output speed signal, makes variable frequency drives 2 produce the frequency signal for driving pitch motor 4, and control pitch motor 4 to work；Become
Oar controller 1 is also equipped with display function, is capable of the value of the input of receiving angle encoder 5 and is shown.Angular encoder 5 and speed
Degree encoder 3 is coaxial with pitch motor 4, and angular encoder 5 is absolute value encoder.Variable frequency drives 2, the He of pitch motor 4
Speed encoder 3 forms closed-loop control, and the control of variable frequency drives 2 pitch motor 4 is operated, and pitch motor 4 is by coaxial speed
Encoder 3 feeds back signal to variable frequency drives 2, forms closed-loop control, it is ensured that the steady running of pitch motor 4.
Operation principle of the present utility model and process are as follows：
First, the velocity amplitude of pitch motor 4, the output control signal of pitch control device 1 and speed are input into pitch control device 1
Signal causes variable frequency drives 2 to work and produces the frequency signal of control pitch motor 4, and secondly, pitch motor 4 is in frequency conversion drive
Operated under the driving of device 2, and drive the speed encoder 3 being coaxial therewith and angular encoder 5 to work, speed encoder 3 feeds back
Rate signal forms closed-loop control, it is ensured that the steady running of pitch motor 4 to variable frequency drives 2, and angular encoder 5 produces angle
Angle value, is conveyed to pitch control device 1 and is shown, if pitch control device 1 can show the angle value that angular encoder 5 is produced,
Detected parts for maintenance success is then represented, otherwise then represents that maintenance is unsuccessful.
Using detection means of the present utility model, according to the above-mentioned course of work, can with the pitch control device after Measuring error,
Variable frequency drives or pitch motor, during detection any of which part, it is ensured that two other part is normal operating conditions.
In sum, the scheme that the utility model embodiment is provided, it is and directly that pitch-controlled system is faulty in the prior art
Part abandon, and way with the original trouble unit of new part replacement is compared, and detection means of the present utility model can
Pitch-controlled system part after maintenance is detected, judges whether to repair successfully, make the successful original trouble unit of maintenance again
Come into operation, reduce equipment cost, saved resource.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to the utility model
New spirit and scope.So, if it is of the present utility model these modification and modification belong to the utility model claim and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising these changes and modification.
Claims (1)
1. a kind of pitch system of wind driven generator detection means, it is characterised in that including：Pitch control device, variable frequency drives, change
Oar motor and angular encoder are linked in sequence；Variable frequency drives are connected by wave filter with 220V power supplys；Pitch motor is by speed
Degree encoder forms closed loop feedback with variable frequency drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324450.7U CN206290365U (en) | 2016-12-05 | 2016-12-05 | A kind of pitch system of wind driven generator detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324450.7U CN206290365U (en) | 2016-12-05 | 2016-12-05 | A kind of pitch system of wind driven generator detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290365U true CN206290365U (en) | 2017-06-30 |
Family
ID=59096880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621324450.7U Expired - Fee Related CN206290365U (en) | 2016-12-05 | 2016-12-05 | A kind of pitch system of wind driven generator detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708826A (en) * | 2018-05-16 | 2018-10-26 | 新疆金风科技股份有限公司 | Pitch motor progress control method and device, wind power generating set and storage medium |
-
2016
- 2016-12-05 CN CN201621324450.7U patent/CN206290365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708826A (en) * | 2018-05-16 | 2018-10-26 | 新疆金风科技股份有限公司 | Pitch motor progress control method and device, wind power generating set and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20171205 |