CN206681908U - A kind of yaw system for Wind turbines - Google Patents
A kind of yaw system for Wind turbines Download PDFInfo
- Publication number
- CN206681908U CN206681908U CN201720374282.0U CN201720374282U CN206681908U CN 206681908 U CN206681908 U CN 206681908U CN 201720374282 U CN201720374282 U CN 201720374282U CN 206681908 U CN206681908 U CN 206681908U
- Authority
- CN
- China
- Prior art keywords
- yaw
- contactor
- driftage
- group
- wind turbines
- 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
-
- 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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- Wind Motors (AREA)
Abstract
The utility model provides a kind of yaw system for Wind turbines,Including AC power,Yaw motor starter,Contactor group of going off course and yaw motor group,The AC power,Yaw motor starter,Driftage contactor group and yaw motor group are connected in series,Connected soft initiator between the yaw motor starter and driftage contactor group,Bypass contactor is parallel with the soft initiator,The soft initiator is provided with failure detector,The input of the failure detector electrically connects with the auxiliary contact of the yaw motor starter,The output end of the failure detector electrically connects with yaw system protector,The utility model in yaw system by setting soft initiator and yaw system protector,The starting current and staring torque of yaw motor can effectively be limited,Realize effective protection to yaw system mechanical drive train and motor.
Description
Technical field
The utility model belongs to fan yaw technical field, more particularly, to a kind of yaw system for Wind turbines.
Background technology
Wind power generating set is to convert wind energy into the device of electric energy, wind power generating set generally by impeller, transmission system,
The part such as generator, yaw system and pitch-controlled system forms, wherein, yaw system is primarily to reply wind direction uncertainty is made
Into influence, specifically, under usual situation, when impeller Plane of rotation is vertical with airflow direction (wind direction), blower fan can obtain
The wind energy taken is maximum, but wind direction turn of the market, when impeller Plane of rotation is in non-vertical position with wind direction, it is necessary to by inclined
Boat system makes impeller Plane of rotation perpendicular to wind direction.
At present, the yaw system of most of Wind turbines causes electric motor starting mainly by the way of motor directly initiates
Electric current and torque are big, produce impact to mechanical drive train body and reduce service life and increase fault rate, motor is produced in itself
Heating and insulation breakdown.
The content of the invention
Problem to be solved in the utility model is to provide a kind of starting current and startup that can effectively limit yaw motor
Torque, realize the yaw system for Wind turbines of effective protection to yaw system mechanical drive train and motor.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of driftage for Wind turbines
System, including AC power, yaw motor starter, driftage contactor group and yaw motor group, the AC power, driftage electricity
Machine starter, driftage contactor group and yaw motor group are connected in series, the yaw motor starter and driftage contactor group it
Between connect soft initiator, bypass contactor is parallel with the soft initiator, the soft initiator is provided with failure detector,
The input of the failure detector electrically connects with the auxiliary contact of the yaw motor starter, the failure detector
Output end electrically connected with yaw system protector.
Further, the driftage contactor group includes go off course positive contactor and driftage reversion contactor, the driftage
Positive contactor and driftage reversion contactor are connected in parallel.
Further, the positive contactor of the driftage and driftage reversion contactor are A.C. contactor.
Further, the failure detector is relay.
Further, the AC power is three-phase alternating-current supply.
Further, the yaw motor group includes several yaw motors, and several described yaw motors are parallel with one another,
The number of the yaw motor is 4 or 6.
Further, the yaw motor is the cage rotor asynchronous machine with electromagnetic brake.
Compared with prior art, the utility model has the advantage that is with beneficial effect：
1st, the utility model is optimized by increasing soft initiator in yaw system to yaw system, is had stronger
Versatility, the yaw system after optimization, staring torque and electric current are all limited, and expensive driftage machine driving is changed so as to reduce
Expense, downtime and the generated energy loss of part；
2nd, the utility model increases yaw system protector in yaw system, when soft initiator breaks down, failure
Signal is sent to yaw system protector, carries out fault alarm, in time staff can be reminded to repair soft initiator,
Prevent from, because soft initiator breaks down, causing yaw motor torque and electric current to increase, yaw motor being caused to damage.
Brief description of the drawings
Fig. 1 is a kind of structural representation of yaw system for Wind turbines of the utility model.
In figure：1- AC powers；2- yaw motor starters；3- yaw motor contactor groups；4- yaw motor groups；5- is soft
Starter；6- bypass contactors；7- yaw system protectors；The positive contactor of 8- driftages；9- driftage reversion contactors；10- is inclined
Avionics machine.
Embodiment
Specific embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of yaw system for Wind turbines, including AC power 1, yaw motor starter 2, partially
Boat contactor group 3 and yaw motor group 4, the AC power 1, yaw motor starter 2, driftage contactor group 3 and driftage electricity
Unit 4 is connected in series, soft initiator 5 of being connected between the yaw motor starter 2 and driftage contactor group 3, and soft initiator 5 is
A kind of motor control for integrating soft start, soft stop, light-load energy saving and multifunction protection is equipped, and increases soft open in this equipment
Dynamic device 5, optimizes to yaw system, there is stronger versatility, the yaw system after optimization, staring torque and electric current are all limited
System, so as to reduce the expense for changing expensive driftage mechanical transmission component, downtime and generated energy loss, the soft initiator
Bypass contactor 6 is parallel with 5, soft initiator 5 controls yaw motor group 4 smoothly to start, when control yaw motor group 4 reaches volume
When determining revolution, start-up course terminates, and soft initiator 5 automatically switches to bypass contactor 6, and bypass circuit is yaw motor group 4
Operating provides rated voltage, so as to reduce the power consumption of soft initiator 5, extends the service life of soft initiator 5, the soft initiator
5 are provided with failure detector (not shown), and the failure detector can be relay, the failure detector it is defeated
Enter end to electrically connect with the auxiliary contact of the yaw motor starter 2, the output end and yaw system of the failure detector
Protector 7 electrically connects, and when relay test is to failure, i.e. yaw motor starter 2 trips or the failure of soft initiator 5, relay
Device disconnects, so as to which fault-signal is delivered in yaw system protector 7 by relay by output end, control yaw system protection
Device 7 is alarmed, and reminds staff to overhaul yaw system.
Further, the driftage contactor group 3 includes positive contactor 8 and the driftage reversion contactor 9 of going off course, described inclined
Navigate positive contactor 8 and driftage reversion contactor 9 be connected in parallel, go off course positive contactor 8 and driftage reversion contactor 9 can control
Yaw motor group 4 processed carries out forward or reverse, so as to effectively control impeller Plane of rotation vertical with wind direction, obtains larger wind
Energy.
Further, the positive contactor 8 of the driftage and driftage reversion contactor 9 are A.C. contactor.
Further, the AC power 1 is three-phase alternating-current supply, specially 3 cross streams 690V power supplys.
Further, the yaw motor group 4 includes several yaw motors 10, and several described yaw motors 10 are mutual
Parallel connection, the number of the yaw motor 10 is 4 or 6.
Further, the yaw motor 10 is the cage rotor asynchronous machine with electromagnetic brake, and staring torque is smaller, energy
Enough meet requirement of the yaw system to electric motor starting, meanwhile, this type electric machine structure is simple, and cost is low, and operation maintenance is convenient.
Operation principle of the present utility model is：Soft initiator 5 controls yaw motor group 4 smoothly to start, when control driftage electricity
When unit 4 reaches rated revolution, start-up course terminates, and soft initiator 5 automatically switches to bypass contactor 6, and bypass circuit is inclined
The operating of avionics unit 4 provides rated voltage.
When the impeller Plane of rotation in yaw system and wind direction out of plumb, by going off course, positive contactor 8 and driftage are anti-
Contactor 9 controls yaw motor group 4 to carry out forward or reverse, adjusts the direction of impeller Plane of rotation, controls impeller rotary flat
Face is mutually perpendicular to wind direction all the time, to obtain maximum wind energy.
Tripped or during 5 failure of soft initiator when yaw motor starter 2 occurs in yaw system, failure detector passes through defeated
Go out end fault-signal is delivered in yaw system protector 7, control yaw system protector 7 is alarmed, and reminds work people
Member overhauls to yaw system.
One embodiment of the present utility model is described in detail above, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope
Equivalent change with improve etc., all should still belong within patent covering scope of the present utility model.
Claims (7)
1. a kind of yaw system for Wind turbines, including AC power (1), yaw motor starter (2), driftage contactor
Group (3) and yaw motor group (4), the AC power (1), yaw motor starter (2), driftage contactor group (3) and driftage
Group of motors (4) is connected in series, it is characterised in that：Connected between the yaw motor starter (2) and driftage contactor group (3) soft
Starter (5), bypass contactor (6) is parallel with the soft initiator (5), the soft initiator (5) is provided with fault detect
Device, the input of the failure detector electrically connect with the auxiliary contact of the yaw motor starter (2), the failure
The output end of detection means electrically connects with yaw system protector (7).
A kind of 2. yaw system for Wind turbines according to claim 1, it is characterised in that：The driftage contactor
Group (3) includes go off course positive contactor (8) and driftage reversion contactor (9), go off course positive contactor (8) and the driftage reversion
Contactor (9) is connected in parallel.
A kind of 3. yaw system for Wind turbines according to claim 2, it is characterised in that：The positive switching of driftage
Tentaculum (8) and driftage reversion contactor (9) are A.C. contactor.
A kind of 4. yaw system for Wind turbines according to claim 1, it is characterised in that：The fault detect dress
It is set to relay.
A kind of 5. yaw system for Wind turbines according to claim 1, it is characterised in that：The AC power
(1) it is three-phase alternating-current supply.
A kind of 6. yaw system for Wind turbines according to claim 1, it is characterised in that：The yaw motor group
(4) several yaw motors (10) are included, several described yaw motors (10) are parallel with one another, of the yaw motor (10)
Number is 4 or 6.
A kind of 7. yaw system for Wind turbines according to claim 6, it is characterised in that：The yaw motor
(10) it is the cage rotor asynchronous machine with electromagnetic brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374282.0U CN206681908U (en) | 2017-04-11 | 2017-04-11 | A kind of yaw system for Wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374282.0U CN206681908U (en) | 2017-04-11 | 2017-04-11 | A kind of yaw system for Wind turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681908U true CN206681908U (en) | 2017-11-28 |
Family
ID=60399838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374282.0U Expired - Fee Related CN206681908U (en) | 2017-04-11 | 2017-04-11 | A kind of yaw system for Wind turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206681908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759808A (en) * | 2021-09-29 | 2021-12-07 | 湖北三江航天万峰科技发展有限公司 | Fan monitoring system, method and device and computer storage medium |
-
2017
- 2017-04-11 CN CN201720374282.0U patent/CN206681908U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759808A (en) * | 2021-09-29 | 2021-12-07 | 湖北三江航天万峰科技发展有限公司 | Fan monitoring system, method and device and computer 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: 20171128 Termination date: 20190411 |