CN105402092B - Detection method and device of wind generating set - Google Patents
Detection method and device of wind generating set Download PDFInfo
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- CN105402092B CN105402092B CN201510917382.9A CN201510917382A CN105402092B CN 105402092 B CN105402092 B CN 105402092B CN 201510917382 A CN201510917382 A CN 201510917382A CN 105402092 B CN105402092 B CN 105402092B
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Abstract
The embodiment of the invention provides a detection method and a detection device of a wind generating set, wherein the detection method of the wind generating set comprises the following steps: sending a test enabling signal to a subsystem of the wind generating set when the wind generating set is in a standby state; the test enabling signal is used for enabling the subsystem to simulate the running state in the starting state in the standby state; and determining whether the working state of the subsystem is normal or not according to the feedback of the subsystem to the test enabling signal. After the wind generating set enters the standby state, the corresponding test enabling signals are respectively sent to the subsystems of the wind generating set, and then the working state of the subsystems of the wind generating set is detected, so that the normal operation of the wind generating set is conveniently ensured.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of detection method and device of wind power generating set.
Background technology
With the development of wind power technology, the status of wind-powered electricity generation in people's lives is higher and higher.Wind power generating set is only just
Often steadily operation could be that user carries maximum interests, how ensure that wind power generating set normal operation is wind power technology neck
The important topic that domain is studied always.
In the prior art, the operation maintenance personnel of wind power plant periodically would generally be checked or be repaired to wind power generating set, this
Sample wastes manpower significantly, and shutdown status is in when wind-driven generator group maintenance, is not normally functioning, reduces the whole of wind turbine
Body efficiency.
Invention content
The purpose of the embodiment of the present invention is, a kind of detection method and device of wind power generating set is provided, with standby
Self-test is carried out to wind power generating set under state.
For achieving the above object, the embodiment provides a kind of detection method of wind power generating set, institutes
The method of stating includes：It is in the standby state in wind power generating set, the subsystem of direction wind-driven generator group sends the enabled letter of test
Number；The test enable signal is for making the subsystem simulate operating status in the start-up conditions in the standby state；According to
The subsystem determines whether the working condition of the subsystem is normal for the feedback of the test enable signal.
Further, the subsystem includes hydraulic system, and the test enable signal includes：First brake test letter
Number；It is described that whether just the working condition of the subsystem is determined for the feedback of the test enable signal according to the subsystem
Include often：Obtain feedback signal of the hydraulic pump in the hydraulic system to the first brake test signal；According to
When feedback signal determines that the hydraulic pump is not actuated, determine that the hydraulic system is abnormal；Or/also, according to the feedback
When signal determines the hydraulic pressure pump startup, the second brake diagnostic test signal is sent to the hydraulic system, and obtain the hydraulic pressure system
The pressure of system, and determine that the hydraulic system is abnormal when the pressure is outside pressure threshold range, when the pressure is being pressed
Determine that the hydraulic system is normal when within the scope of force threshold.
Further, the subsystem includes pitch-controlled system, and the test enable signal opens paddle test signal including first,
Paddle is opened to the first testing pitch angle number for controlling the pitch-controlled system；It is described that the test is made according to the subsystem
Can signal feedback determine the subsystem working condition whether include normally：Obtain the first practical paddle of the pitch-controlled system
The elongation number of degrees；If the first actual blade pitch angle number is outside the threshold range of the first testing pitch angle number, really
The fixed pitch-controlled system is abnormal；Or/also, if obtain the first actual blade pitch angle number it is described first test paddle
In the threshold range of the elongation number of degrees, then feathering test signal is sent to the pitch-controlled system, and obtains the of the pitch-controlled system
Two actual blade pitch angle numbers, and the variable pitch system is determined when the second actual blade pitch angle number is outside feathering threshold range
System is abnormal, determines that the pitch-controlled system is normal in the feathering threshold range in the second actual blade pitch angle number.
Further, the subsystem further includes transmission system, and the transmission system includes generator, and the test makes
Energy signal opens paddle test signal including second, and paddle is opened to the second testing pitch angle number for controlling the pitch-controlled system；It is described
According to the subsystem for the feedback of the test enable signal determine the subsystem working condition whether include normally：
Obtain the generator speed；If the generator speed obtained reaches test rotary speed threshold value in preset time, really
The fixed transmission system is normal；Or/also, if obtain the generator speed do not reach in preset time test turn
Fast threshold value, it is determined that the transmission system is abnormal.
Further, the method further includes：The feedback of the test enable signal is determined according to the subsystem
When the working condition exception of the subsystem, after determining the wind power generating set exception, shutdown operation is executed.
The embodiments of the present invention also provide a kind of detection device of wind power generating set, described device includes：Enabled mould
Block, for being in the standby state in wind power generating set, the subsystem of direction wind-driven generator group sends test enable signal；Institute
Test enable signal is stated for making the subsystem simulate operating status in the start-up conditions in the standby state；Selftest module,
For determining whether the working condition of the subsystem is normal for the feedback of the test enable signal according to the subsystem.
The subsystem includes hydraulic system, and the test enable signal includes first brake test signal；The self-test
Module includes：First acquisition submodule, for obtaining the hydraulic pump in the hydraulic system to the first brake test signal
Feedback signal；First abnormity diagnosis submodule, for when determining that the hydraulic pump is not actuated according to the feedback signal, really
The fixed hydraulic system is abnormal；Or/also, when determining the hydraulic pressure pump startup according to the feedback signal, to the liquid
Pressure system sends the second brake diagnostic test signal, and obtains the pressure of the hydraulic system, and when the pressure is in pressure threshold
Determine that the hydraulic system is abnormal when outside range；First Normal Diagnosis submodule, for when the pressure is in pressure threshold range
Determine that the hydraulic system is normal when interior.
Further, the subsystem includes pitch-controlled system, and the test enable signal opens paddle test signal including first,
Paddle is opened to the first testing pitch angle number for controlling the pitch-controlled system；The selftest module includes：Second acquisition submodule,
The first actual blade pitch angle number for obtaining the pitch-controlled system；Second abnormity diagnosis submodule, if being used for described first
Actual blade pitch angle number is outside the threshold range of the first testing pitch angle number, it is determined that the pitch-controlled system is abnormal；Or
Person/also, if obtain the first actual blade pitch angle number in the threshold range of the first testing pitch angle number,
Feathering test signal then is sent to the pitch-controlled system, and obtains the second actual blade pitch angle number of the pitch-controlled system, and
When the second actual blade pitch angle number is outside feathering threshold range, determine that the pitch-controlled system is abnormal；Second Normal Diagnosis
Submodule, for determining that the pitch-controlled system is normal in the feathering threshold range in the second actual blade pitch angle number.
Further, the subsystem further includes transmission system, and the transmission system includes generator, and the test makes
Energy signal opens paddle test signal including second, and paddle is opened to the second testing pitch angle number for controlling the pitch-controlled system；It is described
Selftest module includes：Third acquisition submodule, for obtaining the generator speed；Third abnormity diagnosis submodule, for such as
The generator speed that fruit obtains does not reach test rotary speed threshold value in preset time, it is determined that the transmission system is abnormal；
Third Normal Diagnosis submodule, if the generator speed for acquisition reaches test rotary speed threshold value in preset time,
Then determine that the transmission system is normal.
Further, described device further includes：Control module is shut down, for the selftest module according to the subsystem pair
When the feedback of the test enable signal determines the working condition exception of the subsystem, determine that the wind power generating set is different
Often and execute shutdown operation.
Further, described device is integrated in the PLC of the wind power generating set.
The detection method and device of wind power generating set provided in an embodiment of the present invention enter standby in wind power generating set
After state, corresponding test enable signal is sent by the subsystem of direction wind-driven generator group respectively, and then to wind-driven generator
The working condition of the subsystem of group is detected, convenient for ensureing the normal operation of wind power generating set.
Description of the drawings
Fig. 1 is the flow chart of the detection method for the wind power generating set for showing the embodiment of the present invention one；
Fig. 2 is the flow chart of the detection method for the wind power generating set for showing the embodiment of the present invention two；
Fig. 3 is the hydraulic system self checking method flow chart for showing the embodiment of the present invention two；
Fig. 4 is the pitch-controlled system self checking method flow chart for showing the embodiment of the present invention two；
Fig. 5 is the transmission system self checking method flow chart for showing the embodiment of the present invention two；
Fig. 6 is the structural schematic diagram of the detection device for the wind power generating set for showing the embodiment of the present invention three；
Fig. 7 is the structural schematic diagram of the detection device for the wind power generating set for showing the embodiment of the present invention four.
Specific implementation mode
The detection method and device of wind power generating set provided in an embodiment of the present invention enter standby in wind power generating set
After state, the subsystem (including but not limited to hydraulic system, pitch-controlled system and transmission system) of wind power generating set is carried out certainly
Inspection, determines whether the working condition of subsystem is normal, and then judge whether the working condition of wind power generating set is normal.
Embodiment one
Fig. 1 is the flow chart of the detection method for the wind power generating set for showing the embodiment of the present invention one.
Referring to Fig.1, the detection method of wind power generating set includes：
In step S110, when wind power generating set is in standby, the subsystem of direction wind-driven generator group, which is sent, to be surveyed
Try enable signal.
Specifically, above-mentioned subsystem be in wind power generating set in operating system some or it is multiple, which can
To include but not limited to hydraulic system, pitch-controlled system and transmission system etc.；The transmission main body for testing enable signal can be wind-force
The programmable controller (Programmable Logic Controller, PLC) or other control system of generating set.
Test enable signal function be：For the purpose of test subsystems working condition, make subsystem in standby mode
The operating status of Imitating in the start-up conditions, wherein the enable signal base of test enable signal and any subsystem normal operation
This is identical, and testing enable signal and enable signal, difference lies in the corresponding subsystem of enable signal driving is transported in the case where opening machine state
Row, the corresponding subsystem of test enable signal driving is run in the standby state, if corresponding subsystem is in the standby state to surveying
The feedback for trying enable signal is normal, then it represents that corresponding subsystem can be with normal operation in the case where opening machine state, or if corresponds to son
System is abnormal to testing the feedback of enable signal in the standby state, then it represents that corresponding subsystem can not be normal in the case where opening machine state
Operation.
In step S120, the working condition of corresponding subsystem, which is, to be determined for the feedback of test enable signal according to subsystem
It is no normal.
Specifically, subsystems meeting feeding back for test enable signal after receiving test enable signal,
If the feedback of certain subsystem is normal, judge that the working condition of the subsystem is normal；If feedback is abnormal, the son is judged
The working condition of system is abnormal.
The detection method of wind power generating set provided in an embodiment of the present invention is in standby in wind power generating set
When, the subsystem of direction wind-driven generator group sends test enable signal, and the work of subsystem is determined according to the feedback of subsystem
State, ensure that the normal operation of wind power generating set.
Embodiment two
Fig. 2 is the flow chart of the detection method for the wind power generating set for showing the embodiment of the present invention two, can be considered Fig. 1
Specific implementation.In the present embodiment, subsystem is at least one of hydraulic system, pitch-controlled system and transmission system.
With reference to Fig. 2, the detection method of the wind power generating set includes：
In step S210, after wind power generating set enters standby mode, the hydraulic system of wind power generating set is carried out
Self-test.
Specifically, the hydraulic system in wind power generating set has the function of to control brake system etc..In the present embodiment, main
Detect the working condition that hydraulic system provides control for high speed shaft brake system and yaw brake system.
Specifically, when needing to control brake system, control system can send the solenoid valve in hydraulic system
Signal is controlled, solenoid valve is opened to control brake system, and the hydraulic pump in hydraulic system provides using oil pressure for brake system dynamic
Power.
Further, when carrying out self-test to hydraulic system, test enable signal is sent to it, if enabled for testing
The feedback of signal is normal, then judges that hydraulic system is normal, and execute subsequent step；If different for the feedback for testing enable signal
Often, then judge hydraulic system exception.
In step S220, self-test is carried out to pitch-controlled system.
Specifically, pitch-controlled system is an important component of wind power generating set, is typically mounted at wind-driven generator
In the wheel hub of group, mainly it is made of blade bearing, pitch motor, variable pitch reduction box and pitch control cabinet etc..Pitch-controlled system can
To include following function：Become propeller angle by adjusting and control generator speed, to obtain optimal power generation power；And in wind-force
Wind power generating set is set to be transitioned into safe condition from satisfaction by air drag brake when generating set failure.
Further, when testing pitch-controlled system, test enable signal is sent to it, if enabled for testing
The feedback of signal is normal, then judges that pitch-controlled system is normal, and execute subsequent step；If different for the feedback for testing enable signal
Often, then judge pitch-controlled system exception.
In step S230, self-test is carried out to transmission system.
Specifically, transmission system includes transmission chain and generator, and transmission chain is mainly fifth wheel in wind power generating set
Hub and generator convert the slow-speed of revolution that wheel hub inputs to high rotating speed by certain transmission ratio and export to generator.
Further, when testing transmission system, test enable signal is sent to it, if enabled for testing
The feedback of signal is normal, then judges that transmission system is normal；If abnormal for the feedback for testing enable signal, variable pitch system is judged
System is abnormal.
It is worth noting that, the above-mentioned flow-independent that self-test is carried out to hydraulic system, pitch-controlled system and transmission system executes,
There is no the restrictions of sequencing.After determining that the operating status of each subsystem is normal, it can generate and open machine signal, for starting wind
Power generator group.
Fig. 3 is the hydraulic system self checking method flow chart for showing the embodiment of the present invention two, can be considered step S210's
A kind of specific implementation.
With reference to Fig. 3, which includes：
In step S310, first brake test signal is sent to hydraulic system.
Specifically, the first brake test signal be respectively to yaw brake system send yaw brake declutch signal and
The high speed shaft brake switching signal sent to high speed shaft brake system.
In step S320, feedback signal of the hydraulic pump in hydraulic system to first brake test signal is obtained.
Specifically, above-mentioned feedback signal is the signal whether hydraulic pump starts, if hydraulic pump is not actuated, it is determined that hydraulic pressure
System exception, and judge wind power generating set exception；If hydraulic pressure pump startup, executes subsequent operation.Wherein, if hydraulic pump
Start, then the solenoid valve in hydraulic system is open-minded, therefore optional, and the feedback signal for representing hydraulic pressure pump startup can be solenoid valve
The open signal etc. of feedback.
In step S330, when determining hydraulic pressure pump startup according to the feedback signal of first brake test signal, to hydraulic pressure system
System sends the second brake diagnostic test signal.
Specifically, if the control system detects that hydraulic pressure pump startup, then send the second brake diagnostic test signal to hydraulic system.
The second brake diagnostic test signal be respectively to yaw brake system send yaw brake switching signal and to high speed shaft brake be
The high speed shaft brake that system is sent is declutched signal.
In step S340, the pressure of hydraulic system is obtained, determines the operating status of hydraulic system.
Specifically, when detecting the pressure value of hydraulic system outside preset pressure threshold range, it is determined that the hydraulic pressure
System exception, and judge wind power generating set exception；If the pressure of the hydraulic system obtained is within the scope of pressure threshold, really
It is normal to determine hydraulic system.In the present embodiment, above-mentioned pressure threshold range can be according to the creation time of wind power generating set, new and old
Depending on degree.Since the pressure switch on brake block is compressed, it can optionally pass through the compression journey of detection pressure switch
Degree obtains the pressure of hydraulic system.
Preferably, this method further includes：It detects and makes a reservation for if the hydraulic system self-test flow execution time is less than first
Duration then judges that hydraulic system is normal, if it exceeds the first scheduled duration, then judge hydraulic system exception, and wind-driven generator
Group is abnormal.In the present embodiment, above-mentioned first scheduled duration can freely be set, such as 20 seconds.
Fig. 4 is the pitch-controlled system self checking method flow chart for showing the embodiment of the present invention two, can be considered step S220's
A kind of specific implementation.
With reference to Fig. 4, which includes：
In step S410, sends first to pitch-controlled system and open paddle test signal.
Specifically, control system sends to pitch-controlled system and first opens paddle test signal, this first is opened paddle test signal and include
First testing pitch angle number.In the present embodiment, the first testing pitch angle number can be 70 degree.
In step S420, the first actual blade pitch angle number of pitch-controlled system is obtained.
Specifically, pitch-controlled system carries out variable pitch according to the first specified testing pitch angle number, if control system detects
The the first actual blade pitch angle number arrived outside the threshold range of the first testing pitch angle number (i.e. the first actual blade pitch angle number with
The absolute value of first testing pitch angle number difference is more than certain value, such as 2 degree, correspondingly, the threshold of the first testing pitch angle number
Value may range from 68 degree to 72 degree), it is determined that pitch-controlled system is abnormal, and judges wind power generating set exception；If detected
The first actual blade pitch angle number in the threshold range of the first testing pitch angle number (i.e. the first actual blade pitch angle number and
The absolute value of one testing pitch angle number difference is no more than certain value), and continue for some time (including but not limited to 5 seconds), then
Execute subsequent operation.
In step S430, feathering test signal is sent to pitch-controlled system.
Specifically, when control system detect the first actual blade pitch angle number the first testing pitch angle number threshold value model
In enclosing, then feathering test signal is sent to pitch-controlled system.
In step S440, the second actual blade pitch angle number of pitch-controlled system is obtained.
Specifically, if the second actual blade pitch angle number obtained is outside preset feathering threshold range, it is determined that variable pitch
System exception, and wind power generating set is abnormal；If the second actual blade pitch angle number obtained is protected in feathering threshold range
It holds a period of time (including but not limited to 5 seconds), it is determined that pitch-controlled system is normal.In the present embodiment, feathering threshold range can be with
It is 87 degree to 91 degree.
Preferably, this method further includes：It detects and makes a reservation for if the pitch-controlled system self-test flow execution time is less than second
Duration then judges that pitch-controlled system is normal；If it exceeds the second scheduled duration, then judge pitch-controlled system exception, and judge that wind-force is sent out
Motor group is abnormal.In the present embodiment, above-mentioned second scheduled duration can be according to wind power generating set and/or the parameter of pitch-controlled system
It presets, such as 30 seconds.
Fig. 5 is the transmission system self checking method flow chart for showing the embodiment of the present invention two, can be considered step S230's
A kind of specific implementation.
With reference to Fig. 5, which includes：
In step S510, sends second to pitch-controlled system and open paddle test signal.
Specifically, control system sends second to pitch-controlled system and opens paddle test signal, and paddle is opened extremely for controlling pitch-controlled system
Second testing pitch angle number.In the present embodiment, the second testing pitch angle number can be 55 degree.
In step S520, generator speed is obtained.
Specifically, if the generator speed that control system obtains reaches test rotary speed threshold value in preset time, really
It is normal to determine transmission system, if detecting that generator speed does not reach test rotary speed threshold value in preset time, it is determined that transmission
System exception, and judge wind power generating set exception.In the present embodiment, preset time and test rotary speed threshold value can be according to opening paddle
The difference of angle and set, for example, preset time be 5 seconds, test rotary speed threshold value be 10 revolutions per seconds.
Preferably, this method further includes：It detects and makes a reservation for if the transmission system self-test flow execution time is less than third
Duration then judges that transmission system is normal, if it exceeds third scheduled duration, then judge transmission system exception, and judges that wind-force is sent out
Motor group is abnormal.In the present embodiment, above-mentioned third scheduled duration can be according to wind power generating set and/or the parameter of transmission system
It presets, such as 10 seconds.
Further, the detection method of the wind power generating set of the present embodiment further includes：Test is made according to subsystem
Can the feedback of signal when determining the working condition exception of corresponding subsystem, determine after wind power generating set exception and execute shutdown behaviour
Make.
Specifically, after control system determines that wind power generating set is in abnormality, wind power generating set emergency shutdown,
And operation maintenance personnel is notified to wind power generating set promptly investigate or repair.
In the present embodiment, the above-mentioned flow that self-test is carried out to hydraulic system, pitch-controlled system and transmission system can independently be held
Row, there is no the restrictions of sequencing.In view of the efficiency of detection, due to needing to call variable pitch system in transmission system self-test
System, therefore, optionally the flow of the self-test of pitch-controlled system executes before the self-test flow of transmission system.
The detection method of wind power generating set provided in an embodiment of the present invention is in standby in wind power generating set
When, hydraulic system, pitch-controlled system and the transmission system of direction wind-driven generator group send test enable signal, and according to each subsystem
Feedback signal judge the operating status of wind power generating set, self-test with automated intelligent is carried out to wind power generating set, is ensured
The normal operation of wind power generating set, while saving manpower.
Embodiment three
Fig. 6 is the structural schematic diagram of the detection device for the wind power generating set for showing the embodiment of the present invention three.
With reference to Fig. 6, which includes enabled module 610 and selftest module 620.
Enabled module 610 in wind power generating set for being in the standby state, the subsystem hair of direction wind-driven generator group
Send test enable signal.Test enable signal is for making subsystem simulate operating status in the start-up conditions in the standby state.
Selftest module 620 is used to determine that the working condition of subsystem is for the feedback of test enable signal according to subsystem
It is no normal.
The detection device of wind power generating set provided in an embodiment of the present invention is in standby in wind power generating set
When, the subsystem of direction wind-driven generator group sends test enable signal, and the work of subsystem is judged according to the feedback of subsystem
State ensure that the normal operation of wind power generating set.
Example IV
Fig. 7 is the structural schematic diagram of the detection device for the wind power generating set for showing the embodiment of the present invention four.
With reference to Fig. 7, which includes enabled module 610, selftest module 620 and shuts down control module 630.
Enabled module 610 in wind power generating set for being in the standby state, the subsystem hair of direction wind-driven generator group
Send test enable signal.Test enable signal is for making subsystem simulate operating status in the start-up conditions in the standby state.
Selftest module 620 is used to determine that the working condition of subsystem is for the feedback of test enable signal according to subsystem
It is no normal.
It shuts down control module 630 and son is determined for testing the feedback of enable signal according to subsystem for selftest module 620
When the working condition exception of system, determines after wind power generating set exception and execute shutdown operation.
Further, when subsystem includes hydraulic system, test enable signal includes first brake test signal.
Selftest module 620 includes the first acquisition submodule 621, the first abnormity diagnosis submodule 622 and the first Normal Diagnosis
Submodule 623.
The feedback letter that first acquisition submodule 621 is used to obtain the hydraulic pump in hydraulic system to first brake test signal
Number.
First abnormity diagnosis submodule 622 is used for when determining that hydraulic pump is not actuated according to feedback signal, determines hydraulic pressure system
System is abnormal；Or/also, when determining hydraulic pressure pump startup according to feedback signal, the second brake diagnostic test letter is sent to hydraulic system
Number, and the pressure of hydraulic system is obtained, and hydraulic system exception is determined when pressure is outside pressure threshold range.
First Normal Diagnosis submodule 623 when pressure is within the scope of pressure threshold for determining that hydraulic system is normal.
Specifically, when subsystem includes pitch-controlled system, test enable signal opens paddle test signal including first, for controlling
Pitch-controlled system processed opens paddle to the first testing pitch angle number.
Selftest module 620 includes：Second acquisition submodule 624, the second abnormity diagnosis submodule 625 and the second Normal Diagnosis
Submodule 626.
Second acquisition submodule 624 is used to obtain the first actual blade pitch angle number of pitch-controlled system.
If the second abnormity diagnosis submodule 625 is for the first actual blade pitch angle number in the first testing pitch angle number
Outside threshold range, it is determined that pitch-controlled system is abnormal；Or/also, if obtain the first actual blade pitch angle number first survey
In the threshold range for trying pitch angle number, then feathering test signal is sent to pitch-controlled system, and obtains the second reality of pitch-controlled system
Border pitch angle number, and when the second actual blade pitch angle number is outside feathering threshold range, determine pitch-controlled system exception.
Second Normal Diagnosis submodule 626 is used to determine variable pitch in feathering threshold range in the second actual blade pitch angle number
System is normal.
Further, subsystem further includes transmission system, and transmission system includes generator, and test enable signal includes
Second opens paddle test signal, and paddle is opened to the second testing pitch angle number for controlling pitch-controlled system.
Selftest module 620 includes：Third acquisition submodule 624, third abnormity diagnosis submodule 628 and third Normal Diagnosis
Submodule 629.
Third acquisition submodule 627 is for obtaining generator speed.
Turn if third abnormity diagnosis submodule 628 does not reach test for the generator speed of acquisition in preset time
Fast threshold value, it is determined that transmission system is abnormal.
If generator speed of the third Normal Diagnosis submodule 629 for acquisition reaches test rotating speed in preset time
Threshold value, it is determined that transmission system is normal.
Further, the detection device of the wind power generating set is integrated in the PLC of wind power generating set.
The detection device of wind power generating set provided in an embodiment of the present invention is in standby in wind power generating set
When, hydraulic system, pitch-controlled system and the transmission system of direction wind-driven generator group are tested, and test enable signal, and root are sent
The operating status of wind power generating set is judged according to the feedback signal of subsystem, and with automated intelligent wind power generating set is carried out certainly
Inspection, ensure that the normal operation of wind power generating set, while saving manpower.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is 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 (9)
1. a kind of detection method of wind power generating set, which is characterized in that the method includes：
It is in the standby state in wind power generating set, the subsystem of direction wind-driven generator group sends test enable signal, wherein
The test enable signal is for making the subsystem simulate operating status in the start-up conditions in the standby state；
Whether the working condition of the subsystem is normal to be determined for the feedback of the test enable signal according to the subsystem,
Wherein, when the subsystem includes hydraulic system, the test enable signal includes first brake test signal,
In, it is described that whether just the working condition of the subsystem is determined for the feedback of the test enable signal according to the subsystem
Include often：
Obtain feedback signal of the hydraulic pump in the hydraulic system to the first brake test signal；
When determining that the hydraulic pump is not actuated according to the feedback signal, determine that the hydraulic system is abnormal；Or/also,
When determining the hydraulic pressure pump startup according to the feedback signal, the second brake diagnostic test signal is sent to the hydraulic system, and
The pressure of the hydraulic system is obtained, and determines that the hydraulic system is abnormal when the pressure is outside pressure threshold range,
Determine that the hydraulic system is normal when the pressure is within the scope of pressure threshold.
2. according to the method described in claim 1, it is characterized in that, when the subsystem includes pitch-controlled system, the test
Enable signal opens paddle test signal including first, and paddle is opened to the first testing pitch angle number for controlling the pitch-controlled system；
Wherein, the working condition for determining the subsystem for the feedback of the test enable signal according to the subsystem
Whether include normally：
Obtain the first actual blade pitch angle number of the pitch-controlled system；
If the first actual blade pitch angle number is outside the threshold range of the first testing pitch angle number, it is determined that described
Pitch-controlled system is abnormal；Or/also, if obtain the first actual blade pitch angle number in the first testing pitch angle
In several threshold ranges, then feathering test signal is sent to the pitch-controlled system, and obtains the second reality of the pitch-controlled system
Pitch angle number, and determine that the pitch-controlled system is different when the second actual blade pitch angle number is outside feathering threshold range
Often, determine that the pitch-controlled system is normal in the feathering threshold range in the second actual blade pitch angle number.
3. according to the method described in claim 2, it is characterized in that, when the subsystem includes transmission system, the transmission
System includes generator, and the test enable signal opens paddle test signal including second, is opened for controlling the pitch-controlled system
Paddle is to the second testing pitch angle number；
Wherein, the working condition for determining the subsystem for the feedback of the test enable signal according to the subsystem
Whether include normally：
Obtain the generator speed；
If the generator speed obtained reaches test rotary speed threshold value in preset time, it is determined that the transmission system is just
Often；Or/also, if obtain the generator speed do not reach test rotary speed threshold value in preset time, it is determined that institute
State transmission system exception.
4. method according to any one of claims 1 to 3, which is characterized in that the method further includes：
When determining the working condition exception of the subsystem for the feedback of the test enable signal according to the subsystem, really
The fixed wind power generating set exception simultaneously executes shutdown operation.
5. a kind of detection device of wind power generating set, which is characterized in that described device includes：
Enabled module, for being in the standby state in wind power generating set, the subsystem of direction wind-driven generator group sends test
Enable signal, wherein the test enable signal is transported in the start-up conditions for making the subsystem simulate in the standby state
Row state；
Selftest module, the work for determining the subsystem for the feedback of the test enable signal according to the subsystem
Whether state is normal, wherein when the subsystem includes hydraulic system, the test enable signal includes first brake test
Signal,
Wherein, the selftest module includes：
First acquisition submodule, the feedback for obtaining the hydraulic pump in the hydraulic system to the first brake test signal
Signal；
First abnormity diagnosis submodule, described in when determining that the hydraulic pump is not actuated according to the feedback signal, determining
Hydraulic system is abnormal；Or/also, when determining the hydraulic pressure pump startup according to the feedback signal, to the hydraulic system
The second brake diagnostic test signal is sent, and obtains the pressure of the hydraulic system, and when the pressure is outside pressure threshold range
When determine that the hydraulic system is abnormal；
First Normal Diagnosis submodule, for determining that the hydraulic system is normal when the pressure is within the scope of pressure threshold.
6. device according to claim 5, which is characterized in that when the subsystem includes pitch-controlled system, the test
Enable signal opens paddle test signal including first, and paddle is opened to the first testing pitch angle number for controlling the pitch-controlled system,
Wherein, the selftest module includes：
Second acquisition submodule, the first actual blade pitch angle number for obtaining the pitch-controlled system；
Second abnormity diagnosis submodule, if for the first actual blade pitch angle number in the first testing pitch angle number
Threshold range outside, it is determined that the pitch-controlled system is abnormal；Or/also, if obtain the first actual blade pitch angle
Number then sends feathering test signal, and obtain in the threshold range of the first testing pitch angle number to the pitch-controlled system
The second actual blade pitch angle number of the pitch-controlled system is taken, and in the second actual blade pitch angle number in feathering threshold range
When outer, determine that the pitch-controlled system is abnormal；
Second Normal Diagnosis submodule, for determining institute in the feathering threshold range in the second actual blade pitch angle number
It is normal to state pitch-controlled system.
7. device according to claim 6, which is characterized in that when the subsystem includes transmission system, the transmission
System includes generator, and the test enable signal opens paddle test signal including second, is opened for controlling the pitch-controlled system
Paddle to the second testing pitch angle number,
Wherein, the selftest module includes：
Third acquisition submodule, for obtaining the generator speed；
Third abnormity diagnosis submodule, if the generator speed for acquisition does not reach test rotating speed in preset time
Threshold value, it is determined that the transmission system is abnormal；
Third Normal Diagnosis submodule, if the generator speed for acquisition reaches test rotating speed threshold in preset time
Value, it is determined that the transmission system is normal.
8. according to claim 5 to 7 any one of them device, which is characterized in that described device further includes：
Control module is shut down, the feedback of the test enable signal is determined according to the subsystem for the selftest module
When the working condition exception of the subsystem, determines the wind power generating set exception and execute shutdown operation.
9. device according to claim 8, which is characterized in that described device is integrated in the PLC of the wind power generating set
In.
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| CN108150349B (en) * | 2016-12-06 | 2020-03-24 | 北京金风科创风电设备有限公司 | Control method, device, client and system for test state of wind generating set |
| CN109869285A (en) * | 2017-12-04 | 2019-06-11 | 中国船舶重工集团海装风电股份有限公司 | A kind of detection method and device of wind-driven generator group rotor brake |
| CN113638839B (en) * | 2021-08-23 | 2022-07-29 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator system shutdown protection function self-checking method and wind turbine generator system |
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| CN102411367A (en) * | 2011-11-16 | 2012-04-11 | 许继集团有限公司 | Master control test system and method for large-sized wind generating set |
| CN103604622A (en) * | 2013-11-29 | 2014-02-26 | 北京普拉斯科技发展有限公司 | On-line monitoring and instant warning and fault diagnosis system of wind generating set |
| KR20140087704A (en) * | 2012-12-31 | 2014-07-09 | 대우조선해양 주식회사 | Apparatus for controlling pitch drive of wind power generator and method for controlling thereof |
| CN104765004A (en) * | 2015-03-23 | 2015-07-08 | 北京天诚同创电气有限公司 | Detection method and system for variable-pitch battery of wind generating set |
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| CN102411367A (en) * | 2011-11-16 | 2012-04-11 | 许继集团有限公司 | Master control test system and method for large-sized wind generating set |
| KR20140087704A (en) * | 2012-12-31 | 2014-07-09 | 대우조선해양 주식회사 | Apparatus for controlling pitch drive of wind power generator and method for controlling thereof |
| CN103604622A (en) * | 2013-11-29 | 2014-02-26 | 北京普拉斯科技发展有限公司 | On-line monitoring and instant warning and fault diagnosis system of wind generating set |
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