CN103967704B - Control method and control system for locking impeller of wind generating set - Google Patents
Control method and control system for locking impeller of wind generating set Download PDFInfo
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- CN103967704B CN103967704B CN201410206915.8A CN201410206915A CN103967704B CN 103967704 B CN103967704 B CN 103967704B CN 201410206915 A CN201410206915 A CN 201410206915A CN 103967704 B CN103967704 B CN 103967704B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 21
- 238000010977 unit operation Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000025518 detection of mechanical stimulus involved in sensory perception of wind Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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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
A control method and a control system for locking an impeller of a wind generating set are provided. The control system includes: the running state detection device is used for acquiring the wind speed, the rotating speed of the impeller and the braking state of the impeller; the locking alignment sensor is arranged on a stator of the wind generating set and used for detecting whether a locking pin of the impeller is aligned with the locking hole or not; user prompting means for notifying a user of the insertable locking pin; the impeller control device is used for controlling the impeller in a feathering shutdown mode: if the obtained impeller braking state indicates that the impeller is not in the braking state currently, the wind speed is less than a first wind speed threshold value and the rotating speed of the impeller is less than a first rotating speed threshold value, the impeller control device starts the braking operation on the impeller; if the lock registration sensor detects that the lock pin is in the registration state, the user is notified through the user prompting device that the lock pin can be inserted. Thereby reducing reliance on the personal experience of maintenance personnel when performing impeller braking and locking and improving safety of operation.
Description
Technical field
The present invention relates to a kind of impeller control technology of wind power generating set, more particularly to one kind to be used for wind power generating set
Impeller locking control method and control system.
Background technology
Wind power generating set is run for a long time, and failure occurs unavoidably, now needs attendant to climb up blower fan progress
The work accordingly safeguarded.Before maintenance work is carried out, attendant would generally open brake and locking impeller, to ensure that wind-force is sent out
Group of motors safety.
Fig. 1 is the schematic plan of wind power generating set integral layout.Fig. 2 is the schematic side elevational of wind power generating set
Figure.Attendant 5 performs the operation that impeller lock is determined and blower fan is safeguarded in cabin.Fig. 3 shows that direction is seen shown in A from Fig. 1
Examine, the schematic diagram of impeller brake and locking.Rotor 10, dead axle 20, impeller locking device 30 and impeller is denoted in figure 3 to stop
The position of car 40.
Fig. 4 schematically shows the structure at impeller stop pin.Mobilizable stop pin 50 is embedded with dead axle 20, is being turned
The lock hole 60 of depression is provided with son 10.In the operation of locking impeller, when rotor 10 goes to its lock hole 60 and stop pin pair
During positive position, stop pin 50 can be inserted lock hole 60, to complete the locking of impeller.
Because the axis of rotor rotation of wind power generator impeller and electric generator connects, so wind power generating set impeller brakes
In motor side lock, the rotor of wind energy conversion system has also just reached the purpose of locking impeller.
When needing to perform wind-driven generator group maintenance, attendant enters wind power generating set under the wind speed of permission
Afterwards, skidding first, artificially judge whether the brake speed allowed in design is set for the rotating speed of now impeller before braking
Value is following.If it is determined that rotating speed meets that brake requires, then brake can be performed, while adjust stop pin alignment lock hole.
After completing aforesaid operations, attendant restarts stop pin push-in lock hole and carries out impeller locking, and so guarantee impeller will not be by
In the change of outside wind regime so that impeller burst is rotated, and attendant is threatened safely.Hereafter, attendant's completion is treated
, it is necessary to artificially judge whether stop pin can be exited without stuck again after maintenance work.If meeting to require, people is safeguarded
Member exits stop pin, and wind power generating set is left after completing maintenance work.
Impeller, which brakes, establishes a capital with certain technical requirements with impeller lock, it is necessary to which wheel speed and nacelle exterior wind regime meet
It is required that when can carry out the operation of lower step, and when current attendant is operated, mainly judge to taste by personal experience
Examination operation.
The content of the invention
The control method locked it is an object of the invention to provide a kind of impeller for wind power generating set and control system
System, by the control of the running status performing leaf wheel brake for automatically detecting wind speed and wind power generating set and guide and safeguard people
Member performs impeller lock and operated surely, so as to reduce in performing leaf wheel brake and locking to the dependence of attendant personal experience,
And improve the security of the operation.
According to an aspect of the present invention, there is provided the control method that a kind of impeller for wind power generating set locks, including,
Under feathering shutdown mode, following steps are performed：Obtain wind speed, the wheel speed and impeller braking state of wind power generating set；
If obtain impeller braking state instruction currently without in braking state, obtain wind speed be less than the first wind speed threshold value and
The wheel speed of acquisition is less than the first rotary speed threshold value, then starts the brake operation to impeller；If the impeller braking state obtained
Instruction is currently at braking state, then detects whether stop pin aligns with lock hole；If detect that stop pin is in and locking
The wheel speed that hole is less than the second wind speed threshold value and obtained to positive status, the wind speed obtained is less than the second rotary speed threshold value, then leads to
Know that user can be inserted into stop pin.
According to another aspect of the present invention, there is provided the control system that a kind of impeller for wind power generating set locks, bag
Include：Running state detecting device, for obtaining wind speed, the wheel speed of wind power generating set and impeller braking state；Locking pair
Positive sensor, on the stator of wind power generating set, whether the stop pin for detecting impeller aligns with lock hole；User
Suggestion device, for notifying user to can be inserted into stop pin；Impeller control device, under feathering shutdown mode, fortune will to be passed through
Wind speed, the wheel speed of wind power generating set and the impeller braking state that row condition checkout gear obtains perform control to impeller state
System.The control includes：If the impeller braking state instruction that impeller control device determines to obtain is currently without in brake shape
The wheel speed that state, the wind speed obtained are less than the first wind speed threshold value and obtained is less than the first rotary speed threshold value, then impeller control dress
Put the brake operation started to impeller；If the impeller braking state instruction that impeller control device determines to obtain is currently at brake
State, then impeller control device by locking align sensor detect stop pin whether aligned with lock hole；If impeller controls
The wind speed that device determination obtains is less than the second wind speed threshold value, the wheel speed obtained is less than the second rotary speed threshold value and locking pair
Positive sensor detects that stop pin is in positive status, then notifies user to can be inserted into stop pin by user's suggestion device.
Beneficial effect
According to the control method that the impeller for being used for wind power generating set of the present invention locks with realize the control of the above method
The condition that system can allow performing leaf wheel brake by monitoring unit operation conditions to determine, and automatically control performs impeller and stopped
Car.In addition, the state that the stop pin of impeller and lock hole align also is detected, and according to unit operation situation and the shape aligned
State further guides maintenance personal to perform impeller lock and operated surely, and maintenance personal need not walk out cabin observation operation conditions and basis
Operating experience artificially determines when execution impeller lock and determined, so as to reduce in performing leaf wheel brake and locking to attendant
The dependence of personal experience, and improve impeller brake, the security of lock operation.In addition, it can also be locked by monitoring impeller
State and unit operation parameter further determine when that being suitable to guiding maintenance personal completes the maintenance mans of wind power generating set
After work perform release impeller locking operation, reduce further perform impeller lock timing to attendant personal experience according to
Rely property and improve the security of impeller lock operation.
On this basis, the control method and control system that the impeller for wind power generating set of the invention locks may be used also
By setting the operational factor of multigroup indicator lamp and/or the wind power generating set of display/voice message acquisition, intuitively display is worked as
The running status of preceding blower fan is if appropriate for specific operation is performed, and so as to assist, maintenance personal carries out impeller locking, blower fan is safeguarded
Operation.
Brief description of the drawings
Fig. 1 is the schematic plan of wind power generating set integral layout；
Fig. 2 is the schematic side elevation of wind power generating set layout；
Fig. 3 is the schematic diagram of impeller brake and locking from showing direction shown in the A from Fig. 1；
Fig. 4 is to show the schematic diagram at impeller stop pin；
Fig. 5 is to show to be used to measure sensing of the stop pin with lock hole to positive status according to the exemplary embodiment of the present invention
The schematic diagram of the setting of device；
Fig. 6 is the controlling party for showing to be locked according to the impeller for wind power generating set of the exemplary embodiment of the present invention
The flow chart of method；
Fig. 7 is to show the control that the impeller for wind power generating set in accordance with an alternative illustrative embodiment of the present invention locks
The flow chart of method processed；
Fig. 8 shows the control system locked according to the impeller for wind power generating set of the exemplary embodiment of the present invention
Logic diagram.
Embodiment
The present general inventive concept of the present invention be to provide it is a kind of be used to be controlled the locking of the impeller of wind power generating set and
The method and system of guiding, described method and system is by detecting such as the wheel speed and impeller of wind speed, wind power generating set
The operational factors such as braking state determine the state of executable impeller brake, and carry out impeller brake operation automatically；It is basic herein
On, control method and system that the impeller for wind power generating set of the invention locks can also further detect impeller stop pin
The state aligned with lock hole, so as to guide attendant to continue executing with the operation of impeller locking, to perform wind power generating set
Maintenance.
According to the exemplary embodiment of the present invention, the wheel speed of wind power generating set can be detected by meter, is passed through
The outer anemometer measurement wind speed of cabin, and the electric signal of instruction braking state is obtained to determine that impeller brakes from impeller braking circuit
State.However, the exemplary only technological means of foregoing detection means, one of ordinary skill in the art can use wind-powered electricity generation to lead
Any other conventional means of domain perform the detection of wind speed, wheel speed and impeller braking state, and are not limited to above-mentioned enumerate
Means.
The controlling party that the impeller for wind power generating set of the embodiment of the present invention locks is described in detail below in conjunction with the accompanying drawings
Method and the system using methods described.
Fig. 6 is the controlling party for showing to be locked according to the impeller for wind power generating set of the exemplary embodiment of the present invention
The flow chart of method.When wind power generating set for example needs to be repaired, into feathering shutdown mode under perform the present invention use
In the control method that the impeller of wind power generating set locks.
Reference picture 6, in step S610, determine that wind power generating set enters feathering shutdown mode.
In step S620, wind speed, the wheel speed and impeller braking state of wind power generating set are obtained.For example, it can pass through
Meter detects the wheel speed of wind power generating set, and wind speed is measured by anemometer outside cabin, and from impeller braking circuit
The electric signal of instruction braking state is obtained to determine impeller braking state.
In step S630, determine whether wind power generating set is in braking state according to the impeller braking state of acquisition.Such as
The wind power generating set instruction that fruit obtains is currently without in braking state, then in step S632, it is determined that the wind speed obtained whether
Whether the wheel speed less than the first wind speed threshold value and acquisition is less than the first rotary speed threshold value.It can be carried out safely according to having been generally acknowledged that
The empirical value scope of brake operation sets the first wind speed threshold value and the first rotary speed threshold value, for example, can be by the first wind speed threshold value
11 ms/min and 0.5 rev/min are respectively set to the first rotary speed threshold value.If in step S632, it is determined that the wind speed obtained is small
It is less than the first rotary speed threshold value in the wheel speed of the first wind speed threshold value and acquisition, then it is believed that the fortune of current wind generating set
Row state is suitably executed impeller brake, so as to perform step S635.In step S635, start the brake operation to impeller.Hereafter,
Step S620 is can return to, continues the detection of unit operation parameter.On the other hand, if in step S632, it is determined that obtain
Wind speed is not less than the first rotary speed threshold value not less than the first wind speed threshold value or the wheel speed of acquisition, then direct return to step
S620, continue the detection of unit operation parameter.
If in step S630, the impeller braking state instruction wind power generating set of acquisition currently has been enter into braking state,
Then whether aligned with lock hole in step S650, detection stop pin.For example, lock can be detected by the sensor on stator
Whether rationed marketing aligns with lock hole, and Fig. 5 is to show to be used to measure stop pin and lock hole according to the exemplary embodiment of the present invention
The schematic diagram of setting to the sensor of positive status.After step S650 is performed, step S660 can be continued executing with.
In step S660, it is determined that detecting whether stop pin is in whether small to positive status, the wind speed obtained with lock hole
Whether it is less than the second rotary speed threshold value in the wheel speed of the second wind speed threshold value and acquisition.It can be carried out safely according to having been generally acknowledged that
The empirical value scope of lock operation sets second rotary speed threshold value and the second wind speed threshold value, such as the second rotary speed threshold value can be
0.1 rev/min or lower, the second wind speed threshold value can be 11 ms/min or lower of value.If above-mentioned condition is satisfied by,
It is believed that being able to carry out impeller locking, therefore user is notified to can be inserted into stop pin in step S665.Hereafter, can be as shown in fig. 6, knot
The processing of Shu Suoshu control methods, it also can return to the detection that step S620 continues unit operation parameter.On the other hand, if
Detect that stop pin is not on lock hole to positive status, the wind speed obtained not less than the second wind speed threshold value or the leaf of acquisition
Wheel speed is not less than the second rotary speed threshold value, then return to step S620, continues the detection of unit operation parameter.
It can be seen that by referring to Fig. 6 exemplary embodiments described and wind power generating set be used for according to the present invention
The condition that the control method of impeller locking can allow performing leaf wheel brake by monitoring unit operation conditions to determine, and automatically
Control performing leaf wheel brake.In addition, the state that the stop pin of impeller and lock hole align also is detected, and according to unit operation situation
Further guide maintenance personal to perform impeller lock with the state aligned to operate surely, maintenance personal need not walk out cabin observation
Operation conditions and according to operating experience artificially determine when perform impeller lock determine, so as to reduce in performing leaf wheel brake and lock
Regularly to the dependence of attendant personal experience, and improve impeller brake, the security of lock operation.
Fig. 7 is to show the control that the impeller for wind power generating set in accordance with an alternative illustrative embodiment of the present invention locks
The flow chart of method processed.In the embodiment shown in fig. 7, step S610, S632, S635, S650, S660 and S665 processing with
The processing of the corresponding steps shown in Fig. 6 is identical.
Reference picture 7, in step S620, except obtain wind speed, wind power generating set wheel speed and impeller braking state
In addition, the impeller lock-out state of wind power generating set is also obtained.In wind power generating set, carried out when by impeller locking system
During impeller lock operation, the impeller locking system generally returns to the electric signal of instruction impeller locking.Therefore, can be sent out according to wind-force
The electric signal that the impeller locking system of group of motors whether returned to instruction impeller locking obtains the impeller lock-out state.
Hereafter, in step S630, determine wind power generating set whether in brake shape according to the impeller braking state of acquisition
State.If the wind power generating set obtained is indicated currently without in braking state, step is continued executing with as shown in Figure 6
S632.On the other hand, if in step S630, the impeller braking state instruction wind power generating set of acquisition currently has been enter into brake
State, then perform step S640.
In step S640, it is determined that whether the impeller braking state obtained indicates the impeller for being currently at braking state, obtaining
Whether lock-out state indicates that impeller is currently at what whether lock-out state, the wind speed obtained were less than the second wind speed threshold value and obtained
Whether wheel speed is less than the second rotary speed threshold value.If above-mentioned condition is satisfied by, it indicates that current impeller has locked, and machine
Group service condition meets the condition for exiting stop pin, therefore performs step S645.In step S645, user is notified to exit locking
Pin.Hereafter, the detection that step S620 continues unit operation parameter is can return to, can also terminate the processing of the control method.
On the other hand, if in step S640, it is determined that the impeller obtained locks state instruction impeller currently without in lock
Determine state, the wind speed obtained is not less than the second rotary speed threshold value not less than the wheel speed of the second wind speed threshold value or acquisition, then after
It is continuous to perform step S650.
The embodiment described from reference picture 7 can be seen that to be locked according to the impeller for wind power generating set of the present invention
Control method can also be by monitoring impeller lock-out state and unit operation parameter further determine when to be suitable to guiding maintenance
Personnel perform the operation for releasing impeller locking after the maintenance work of wind power generating set is completed, and reduce further in performing leaf
Wheel lock timing is to the dependence of attendant personal experience and improves the security of impeller lock operation.
According to the exemplary embodiment of the present invention, in the controlling party that the impeller for wind power generating set of the present invention locks
In method, also it is used for intuitively showing the running status of current blower fan if appropriate for the specific behaviour of execution using at least one set of indicator lamp
Make.Every group of indicator lamp can be that each of which shows the single lamp of multiple color or shows different colours respectively
Multiple lamps.
According to the exemplary embodiment using indicator lamp, if in step S632, it is determined that the wind speed obtained is less than the
The one wind speed threshold value and wheel speed obtained is less than the first rotary speed threshold value, then in step S635, except startup is to the brake of impeller
Beyond car operation, first group of indicator lamp is also shown as first state, brake operation is had been turned on to indicate to the user that；If in step
Rapid S632, it is determined that the wind speed obtained is not less than the first rotary speed threshold value not less than the first wind speed threshold value or the wheel speed of acquisition,
First group of indicator lamp is then shown as the second state, to indicate that current running of wind generating set condition does not allow still to perform brake to impeller
Car.
According to the exemplary embodiment using indicator lamp, if in step S660, detect that stop pin is in locking
Sell the state aligned with lock hole, the wheel speed that the wind speed of acquisition is less than the second wind speed threshold value and obtained is less than the second rotating speed
Threshold value, then in step S665, except notifying user to can be inserted into stop pin, second group of indicator lamp is also shown as first state, with
Indicate that the operation conditions of current Wind turbines allows to carry out impeller locking；If in step S660, detect that stop pin is not located
The state aligned in stop pin with lock hole, the wind speed obtained are not less than the second wind speed threshold value or the wheel speed of acquisition is not small
In the second rotary speed threshold value, then second group of indicator lamp is shown as the second state, impeller locking can not still be carried out with instruction at present.
If in addition, in step S640, it is determined that the impeller locking state instruction impeller obtained is currently at lock-out state, obtained
The wheel speed that the wind speed taken is less than the second wind speed threshold value and obtained is less than the second rotary speed threshold value, then in step S645 by the 3rd
Group indicator lamp is shown as first state, and notifies user to exit stop pin；If in step S660, it is determined that the impeller obtained
Lock-out state instruction impeller is not on lock-out state, the wind speed obtained turns not less than the second wind speed threshold value or the impeller of acquisition
Speed is not less than the second rotary speed threshold value, then the 3rd group of indicator lamp is shown as into the second state.
The first state and the second state of foregoing every group of indicator lamp can be color state or flicker state.Example
Such as, first state and the second state are different colours respectively, such as green and red；For another example first state and the second state point
It is not that stable state is shown and flickering display.
According to a preferred embodiment of the invention, it is shown as in the processing of the second state by any group of indicator lamp, can also shows
Show or voice message obtain wind speed and rotating speed.
By setting the operational factor of multigroup indicator lamp and/or the wind power generating set of display/voice message acquisition, this hair
The control method that the bright impeller for wind power generating set locks can also intuitively show current blower fan running status whether
Specific operation is suitably executed, so as to assist the operation that maintenance personal carries out impeller locking, blower fan is safeguarded.
Fig. 8 is the control system for showing to be locked according to the impeller for wind power generating set of the exemplary embodiment of the present invention
The logic diagram of system.
Reference picture 8, the control system locked according to the impeller for wind power generating set of the exemplary embodiment of the present invention
System includes running state detecting device 810, impeller control device 820, user's suggestion device 830 and locking and aligns sensor 840.
Running state detecting device 810 is used to obtain wind speed, the wheel speed of wind power generating set and impeller braking state.
According to an alternative embodiment of the invention, running state detecting device 810 detects the impeller turn of wind power generating set by meter
Speed, wind speed is measured by anemometer outside cabin, and the electric signal of instruction braking state is obtained from impeller braking circuit.
Impeller control device 820 is used under feathering shutdown mode, the wind obtained by running state detecting device 810
Speed, the wheel speed of wind power generating set and impeller braking state perform control to impeller state.
User's suggestion device 830 is used to notify user to can be inserted into stop pin.According to the exemplary embodiment of the present invention, user
The wind speed and rotating speed that suggestion device 830 is shown or voice message running state detecting device 810 obtains.
Locking on the stator of wind power generating set aligns the stop pin and lock that sensor 840 is used to detect impeller
Determine whether hole aligns, locking can be as shown in Figure 5 installed and align sensor 840.
According to the exemplary embodiment of the present invention, the control that impeller control device 820 performs to impeller state includes：
If impeller control device 820 determine running state detecting device 810 obtain impeller braking state instruction currently without in
The wheel speed that braking state, the wind speed obtained are less than the first wind speed threshold value and obtained is less than the first rotary speed threshold value, then impeller
Control device 820 starts the brake operation to impeller；If impeller control device 820 determines that running state detecting device 810 obtains
The impeller braking state instruction taken is currently at braking state, then impeller control device 820 aligns sensor 840 by locking and examined
Survey whether stop pin aligns with lock hole；If impeller control device 820 determines that locking aligns sensor 840 and detects stop pin
It is less than the second wind speed threshold value and the wheel speed obtained in the wind speed to positive status, the acquisition of running state detecting device 810
Less than the second rotary speed threshold value, then user is notified to can be inserted into stop pin by user's suggestion device 830.
According to a preferred embodiment of the invention, user's suggestion device 830 includes first group of indicator lamp, wherein, if impeller
Control device 820 determine running state detecting device 810 obtain impeller braking state instruction currently without in braking state,
The wheel speed that the wind speed of acquisition is less than the first wind speed threshold value and obtained is less than the first rotary speed threshold value, then impeller control device
820 start the brake operation to impeller, and first group of indicator lamp is shown as first state by user's suggestion device 830.
According to a preferred embodiment of the invention, if impeller control device 820 determines that running state detecting device 810 obtains
The instruction of impeller braking state currently without in braking state, and the wind speed obtained not less than the first wind speed threshold value or obtains
The wheel speed taken is not less than the first rotary speed threshold value, then impeller control device 820 starts the brake operation to impeller, and user
First group of indicator lamp is shown as the second state by suggestion device 830.
According to a preferred embodiment of the invention, user's suggestion device 830 also includes second group of indicator lamp, wherein, if leaf
Take turns the wind speed that control device 820 determines that running state detecting device 810 obtains and be less than the second wind speed threshold value, the wheel speed obtained
Align sensor 840 less than the second rotary speed threshold value and locking and detect that stop pin is in the shape that stop pin aligns with lock hole
State, then second group of indicator lamp is shown as first state by user's suggestion device 840, and notifies user to can be inserted into stop pin.
According to a preferred embodiment of the invention, if impeller control device 820 determines that locking aligns sensor 840 and detected
Stop pin is not on the state that stop pin and lock hole align, the wind speed obtained not less than the second wind speed threshold value or acquisition
Wheel speed is not less than the second rotary speed threshold value, then second group of indicator lamp is shown as the second state by user's suggestion device 830.
According to a preferred embodiment of the invention, running state detecting device 810 is additionally operable to obtain the leaf of wind power generating set
Take turns lock-out state.In the case of it is determined that the impeller braking state instruction obtained is currently at braking state, impeller control device
Whether the 820 impeller lock-out states for first determining to obtain indicate that impeller is currently at whether lock-out state, the wind speed obtained are less than the
Two wind speed threshold values and obtain wheel speed whether be less than the second rotary speed threshold value.If impeller control device 820 determines to obtain
Impeller locking state instruction impeller be currently at lock-out state, obtain wind speed be less than the second wind speed threshold value and obtain leaf
Wheel speed is less than the second rotary speed threshold value, then user's suggestion device 830 notifies user to exit stop pin.If impeller control device
The 820 impeller locking state instruction impellers for determining to obtain are not on lock-out state, the wind speed of acquisition is not less than the second wind speed threshold
Value or the wheel speed obtained are not less than the second rotary speed threshold value, then impeller control device 820 aligns sensor by locking and examined
Survey whether stop pin aligns with lock hole, state, wind speed and the wheel speed aligned further according to stop pin and lock hole continues
Determine whether the condition for meeting impeller locking.
According to a preferred embodiment of the invention, user's suggestion device 830 also includes the 3rd group of indicator lamp, wherein, if leaf
The impeller locking state instruction impeller that wheel control device 820 determines to obtain is currently at lock-out state, the wind speed obtained is less than the
The two wind speed threshold values and wheel speed obtained is less than the second rotary speed threshold value, then user's suggestion device 830 is by the 3rd group of indicator lamp
First state is shown as, and notifies user to exit stop pin.
According to a preferred embodiment of the invention, if impeller control device 820 determines the impeller locking state instruction obtained
Impeller is not on lock-out state, the wind speed obtained is not less than second not less than the second wind speed threshold value or the wheel speed of acquisition
Rotary speed threshold value, then user's suggestion device 830 the 3rd group of indicator lamp is shown as the second state.
According to the control method that the impeller for being used for wind power generating set of the present invention locks with realize the control of the above method
The condition that system can allow performing leaf wheel brake by monitoring unit operation conditions to determine, and automatically control performs impeller and stopped
Car.In addition, the state that the stop pin of impeller and lock hole align also is detected, and according to unit operation situation and the shape aligned
State further guides maintenance personal to perform impeller lock and operated surely, and maintenance personal need not walk out cabin observation operation conditions and basis
Operating experience artificially determines when execution impeller lock and determined, so as to reduce in performing leaf wheel brake and locking to attendant
The dependence of personal experience, and improve impeller brake, the security of lock operation.In addition, it can also be locked by monitoring impeller
State and unit operation parameter further determine when that being suitable to guiding maintenance personal completes the maintenance mans of wind power generating set
After work perform release impeller locking operation, reduce further perform impeller lock timing to attendant personal experience according to
Rely property and improve the security of impeller lock operation.
On this basis, the control method and control system that the impeller for wind power generating set of the invention locks may be used also
By setting the operational factor of multigroup indicator lamp and/or the wind power generating set of display/voice message acquisition, intuitively display is worked as
The running status of preceding blower fan is if appropriate for specific operation is performed, and so as to assist, maintenance personal carries out impeller locking, blower fan is safeguarded
Operation.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (19)
1. the control method that a kind of impeller for wind power generating set locks, including, under feathering shutdown mode, perform following
Step：
Obtain wind speed, the wheel speed of wind power generating set, the impeller lock-out state and impeller braking state of wind power generating set；
If obtain impeller braking state instruction currently without in braking state, obtain wind speed be less than the first wind speed threshold value and
The wheel speed of acquisition is less than the first rotary speed threshold value, then starts the brake operation to impeller；
If the impeller braking state instruction obtained is currently at braking state, whether detection stop pin aligns with lock hole；
If detect that stop pin is in what is be less than the second wind speed threshold value to positive status, the wind speed obtained with lock hole and obtain
Wheel speed is less than the second rotary speed threshold value, then notifies user to can be inserted into stop pin；
If it is determined that the impeller braking state instruction obtained is currently at braking state, the impeller obtained locking state instruction impeller
It is currently at lock-out state, the wheel speed that the wind speed obtained is less than the second wind speed threshold value and obtained is less than the second rotating speed threshold
Value, then notify user to exit stop pin.
2. control method according to claim 1, it is characterised in that
If the impeller braking state instruction obtained is less than the first wind speed threshold value currently without in braking state, the wind speed obtained
And the wheel speed obtained is less than the first rotary speed threshold value, then startup is to the brake operation of impeller, and by first group of indicator lamp
It is shown as first state.
3. control method according to claim 2, in addition to：
If the impeller braking state instruction obtained is currently without in braking state, and the wind speed obtained is not less than the first wind
Fast threshold value or the wheel speed of acquisition are not less than the first rotary speed threshold value, then first group of indicator lamp are shown as into the second state.
4. control method according to claim 3, it is characterised in that if detecting that stop pin is in stop pin and locking
The wheel speed that state that hole aligns, the wind speed obtained are less than the second wind speed threshold value and obtained is less than the second rotary speed threshold value, then
Second group of indicator lamp is shown as first state, and notifies user to can be inserted into stop pin.
5. control method according to claim 4, it is characterised in that the control method also includes：If detect lock
Rationed marketing is not on the state that stop pin and lock hole align, the wind speed obtained not less than the second wind speed threshold value or the leaf of acquisition
Wheel speed is not less than the second rotary speed threshold value, then second group of indicator lamp is shown as into the second state.
6. according to control method according to any one of claims 1 to 5, it is characterised in that if it is determined that the impeller lock obtained
It is small to determine the wheel speed that state instruction impeller is currently at lock-out state, the wind speed obtained is less than the second wind speed threshold value and obtained
In the second rotary speed threshold value, then the 3rd group of indicator lamp is shown as first state, and notify user to exit stop pin.
7. control method according to claim 6, it is characterised in that if it is determined that the impeller locking state instruction leaf obtained
Wheel is not on lock-out state, and the wind speed obtained not less than the second wind speed threshold value or the wheel speed of acquisition not less than the
Two rotary speed threshold values, then the 3rd group of indicator lamp is shown as the second state.
8. control method according to claim 7, it is characterised in that if it is determined that the impeller locking state instruction leaf obtained
Wheel is not on lock-out state, then detects whether stop pin aligns with lock hole, and
If detect that stop pin is in what is be less than the second wind speed threshold value to positive status, the wind speed obtained with lock hole and obtain
Wheel speed is less than the second rotary speed threshold value, then notifies user to can be inserted into stop pin.
9. control method according to claim 8, in addition to：The wind speed and rotating speed that display or voice message obtain.
10. control method according to claim 9, it is characterised in that lock is detected by the sensor on stator
Whether rationed marketing aligns with lock hole.
11. the control system that a kind of impeller for wind power generating set locks, including：
Running state detecting device, for obtain wind speed, the wheel speed of wind power generating set, wind power generating set impeller lock
Determine state and impeller braking state；
Locking aligns sensor, and on the stator of wind power generating set, the stop pin for detecting impeller is with lock hole
It is no to align；
User's suggestion device, for notifying user to can be inserted into stop pin；
Impeller control device, under feathering shutdown mode, the wind speed obtained by running state detecting device, wind-force to be sent out
The wheel speed of group of motors, the impeller lock-out state of wind power generating set and impeller braking state perform control to impeller state,
The control includes：
If the impeller braking state instruction that impeller control device determines to obtain is currently at braking state, the impeller obtained locking
The wheel speed that state instruction impeller is currently at lock-out state, the wind speed obtained is less than the second wind speed threshold value and obtained is less than
Second rotary speed threshold value, then user's suggestion device notify user to exit stop pin；
If the impeller braking state instruction that impeller control device determines to obtain is currently without in braking state, the wind speed obtained
Wheel speed less than the first wind speed threshold value and acquisition is less than the first rotary speed threshold value, then impeller control device starts to impeller
Brake operation；
If the impeller braking state instruction that impeller control device determines to obtain is currently at braking state, impeller control device
Sensor is aligned by locking and detects whether stop pin aligns with lock hole；
If the wind speed that impeller control device determines to obtain is less than the second wind speed threshold value, the wheel speed of acquisition is less than the second rotating speed
Threshold value and locking align sensor and detect that stop pin is in positive status, then notify user can by user's suggestion device
Insert stop pin.
12. control system according to claim 11, it is characterised in that
User's suggestion device includes first group of indicator lamp, wherein, if impeller control device determines the impeller braking state obtained
Indicate to be less than first currently without the wheel speed for being less than the first wind speed threshold value in braking state, the wind speed obtained and obtaining
Rotary speed threshold value, then impeller control device starts the brake operation to impeller, and user's suggestion device shows first group of indicator lamp
It is shown as first state.
13. control system according to claim 12, it is characterised in that if impeller control device determines the impeller obtained
Braking state instruction is currently without in braking state, and the wind speed obtained is not less than the first wind speed threshold value or the leaf of acquisition
Wheel speed is not less than the first rotary speed threshold value, and first group of indicator lamp is shown as the second state by user's suggestion device.
14. control system according to claim 13, it is characterised in that user's suggestion device also includes second group of instruction
Lamp, wherein, if the wind speed that impeller control device determines to obtain is less than the second wind speed threshold value, the wheel speed obtained is less than second
Rotary speed threshold value and locking align sensor and detect that stop pin is in the state that stop pin aligns with lock hole, then user prompts
Second group of indicator lamp is shown as first state by device, and notifies user to can be inserted into stop pin.
15. control system according to claim 14, it is characterised in that if impeller control device determines the wind speed obtained
Align sensor not less than the second rotary speed threshold value or locking not less than the second wind speed threshold value, the wheel speed obtained and detect lock
Rationed marketing is not on the state that stop pin aligns with lock hole, then second group of indicator lamp is shown as the second shape by user's suggestion device
State.
16. the control system according to any one of claim 11~15, it is characterised in that user's suggestion device also includes
3rd group of indicator lamp, wherein, if the impeller locking state instruction impeller that impeller control device determines to obtain is currently at locking
The wheel speed that state, the wind speed obtained are less than the second wind speed threshold value and obtained is less than the second rotary speed threshold value, then user prompts
3rd group of indicator lamp is shown as first state by device, and notifies user to exit stop pin.
17. control system according to claim 16, it is characterised in that if impeller control device determines the impeller obtained
Lock-out state instruction impeller is not on lock-out state, and the wind speed that running state detecting device obtains is not less than the second wind speed
Threshold value or the wheel speed of acquisition are not less than the second rotary speed threshold value, then the 3rd group of indicator lamp are shown as into the second state.
18. control system according to claim 17, it is characterised in that if impeller control device determines the impeller obtained
Lock-out state instruction impeller is not on lock-out state, then locking aligns whether sensor detection stop pin aligns with lock hole,
And
If locking align sensor detect stop pin be in lock hole to positive status, running state detecting device obtain
The wheel speed that wind speed is less than the second wind speed threshold value and obtained is less than the second rotary speed threshold value, then user's suggestion device notifies user
It can be inserted into stop pin.
19. control system according to claim 18, it is characterised in that user's suggestion device is shown or voice message obtains
Wind speed and rotating speed.
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| CN201410206915.8A CN103967704B (en) | 2014-05-16 | 2014-05-16 | Control method and control system for locking impeller of wind generating set |
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| CN201410206915.8A CN103967704B (en) | 2014-05-16 | 2014-05-16 | Control method and control system for locking impeller of wind generating set |
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| CN104832369B (en) * | 2015-04-21 | 2018-03-30 | 三一重型能源装备有限公司 | Wheel hub automatic matching system and control method and wind-driven generator |
| CN106988968A (en) * | 2017-03-08 | 2017-07-28 | 浙江大学 | Wind power plant wind wheel mechanical lock is to aperture apparatus |
| CN110873021B (en) * | 2018-08-31 | 2021-01-26 | 江苏金风科技有限公司 | Impeller locking control system, control method and wind generating set |
| CN111350636B (en) * | 2018-12-20 | 2022-08-26 | 江苏金风科技有限公司 | Hoisting yaw and impeller locking system |
| CN110985296A (en) * | 2019-12-20 | 2020-04-10 | 诸暨都高风能科技有限公司 | Wind motor capable of automatically steering |
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| CN102226445A (en) * | 2011-05-12 | 2011-10-26 | 江苏金风风电设备制造有限公司 | Fan impellor locking device and wind-driven power generator set |
| CN102536659A (en) * | 2012-02-27 | 2012-07-04 | 广东明阳风电产业集团有限公司 | Impeller locking automatic control system and method for large wind power generator |
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| ES2358711B1 (en) * | 2008-09-18 | 2012-03-23 | Gamesa Innovation & Technology, S.L. | METHOD TO STOP AN AIRBRUSHER IN TWO STAGES. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226445A (en) * | 2011-05-12 | 2011-10-26 | 江苏金风风电设备制造有限公司 | Fan impellor locking device and wind-driven power generator set |
| CN102536659A (en) * | 2012-02-27 | 2012-07-04 | 广东明阳风电产业集团有限公司 | Impeller locking automatic control system and method for large wind power generator |
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