CN106050559A - Detecting method and device for wind turbine generator overspeed protection system - Google Patents
Detecting method and device for wind turbine generator overspeed protection system Download PDFInfo
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- CN106050559A CN106050559A CN201610448000.7A CN201610448000A CN106050559A CN 106050559 A CN106050559 A CN 106050559A CN 201610448000 A CN201610448000 A CN 201610448000A CN 106050559 A CN106050559 A CN 106050559A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
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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
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Abstract
The invention provides a detecting method and device for a wind turbine generator overspeed protection system. The wind turbine generator overspeed protection system comprises an overspeed sensor used for detecting the rotating speed of a wind turbine generator. The detecting method comprises the steps that in the shutdown state of the wind turbine generator, a pulse signal generation unit is controlled to generate a pulse signal to simulate a drive signal of a rotor to a rotating speed sensor when the wind turbine generator rotates; and when the frequency of the pulse signal reaches the overspeed frequency of the wind turbine generator, whether the wind turbine generator protection system acts or not is judged, wherein if the wind turbine generator protection system acts, the wind turbine generator overspeed protection system is normal, and if the wind turbine generator protection system does not act, the wind turbine generator overspeed protection system breaks down. According to the detecting method for the wind turbine generator overspeed protection system, the pulse signal generation unit is used for generating a draught fan rotating speed simulating signal, lossless detection can be conducted on the overspeed protection system when the wind turbine generator is shut down and maintained, the detection safety of the wind turbine generator is improved, and operation is easy and convenient.
Description
Technical field
The present invention relates to technical field of wind power generation, in particular it relates to the detection of a kind of Wind turbines overspeed protection system
Method and detection device.
Background technology
In recent years, regenerative resource particularly wind energy has obtained wideling popularize and applying, wind turbine of countries in the world
The safe operation of group and protection are particularly important during wind-power electricity generation.
Under high wind conditions, for timely, effectively, promptly prevent wind power generating set impeller hypervelocity accident, it is to avoid or fall
Low wind power generating set impeller hypervelocity accident cause substantial equipment damage and economic loss, control system of wind turbines must be able to and
The protection act such as Shi Jinhang shutdown, therefore need the overspeed protection system to Wind turbines to carry out periodic detection.
The detection mode of existing Wind turbines overspeed protection system: carry out overspeed protection system inspection when running of wind generating set
Survey, need the rotational speed regulation of Wind turbines to overspeed state, then by judging that overspeed protection system the most normally moves
Make to reach to detect the most normal purpose of overspeed protection system.Such detection mode, owing to Wind turbines needs to surpass
Speed is run, and Wind turbines can cause certain damage, and risk is bigger.
In order to overcome the problems referred to above, in the urgent need to designing the detection device of a kind of Wind turbines overspeed protection system, it is to avoid
Wind turbines is safeguarded because Wind turbines drive disk assembly is caused damage by overspeed protection system test, it is ensured that running of wind generating set is pacified
Entirely.
In view of this, the special proposition present invention.
Summary of the invention
In order to solve the problems referred to above, first goal of the invention of the present invention is to provide a kind of Wind turbines overspeed protection system
Detection method, specifically, have employed following technical scheme:
A kind of detection method of Wind turbines overspeed protection system, described Wind turbines overspeed protection system include for
The hypervelocity sensor of detection Wind turbines rotating speed, including:
Under Wind turbines stopped status, when control wave generating unit produces pulse signal simulation Wind turbines rotation
The rotor pumping signal to speed probe；
When the frequency of pulse signal reaches the overdrive rate of Wind turbines, it is judged that whether Wind turbines protection system is moved
Make, the most then Wind turbines overspeed protection system is normal, if it is not, then Wind turbines overspeed protection system fault.
Further, described pulse signal generating unit produces pulse signal and can enter according to the different model of Wind turbines
Row is corresponding to be adjusted so that the frequency of pulse signal generating unit generation pulse signal reaches the hypervelocity of different model Wind turbines
Frequency.
Further, described pulse signal generating unit connects electromagnetic conversion unit；
The pulse signal that electromagnetic conversion unit return pulse signal generating unit produces is converted into corresponding magnetic induction
Signal, described hypervelocity sensor is by detecting the rotating speed of magnetic induction signal acquisition Wind turbines.
Further, described electromagnetic conversion unit is arranged on the rotor of Wind turbines, and the rotor of Wind turbines has
There is perforate；
The detection of described hypervelocity sensor is rectified split hole and is arranged, and described electromagnetic conversion unit is arranged on position with pores
And near the side of hypervelocity sensor.
Further, described pulse signal generating unit is controlled to produce pulse signal by control unit；
Control unit receives Wind turbines type information and obtains corresponding pulse frequency according to Wind turbines type information,
The pulse frequency that pulse signal generating unit obtains according to control unit produces corresponding pulse signal.
Further, described control unit is single-chip microcomputer, and different Wind turbines model preserved by single-chip microcomputer and institute is right
Answer the tables of data of ultrafast pulses frequency；
Described pulse signal generating unit includes electrical switch, and electrical switch connects single-chip microcomputer；
The described Wind turbines type information selected by single-chip microcomputer reception, is counting according to selected Wind turbines model
According to table obtains corresponding ultrafast pulses frequency, control electrical switch output pulse signal by controlling pin, believe with pulse
Number simulation Wind turbines tach signal.
Further, the display unit that described control unit connects respectively and manipulation unit,
The frequency of described display unit display current PRF signal, carries out pulse frequency by operating described manipulation unit
Be increased or decreased simulation Wind turbines rotor speed.
Further, the detection method of a kind of Wind turbines overspeed protection system, including:
Step S1, starts；
Step S2, control unit reads acquiescence Wind turbines model；
Step S3, control unit judges whether to select acquiescence Wind turbines model；
Step S4, the most then carry out step S6, if it is not, then carry out step S5；
Step S5, control unit receives the Wind turbines type information reselected；
Step S6, control unit reads the frequency of respective pulses signal according to the Wind turbines model selected；
Step S7, control unit control wave generating unit produces rotor when pulse signal simulation Wind turbines rotates
Pumping signal to speed probe；
Step S8, it is judged that Wind turbines protection system whether action, the most then Wind turbines overspeed protection system is normal,
If it is not, then Wind turbines overspeed protection system fault.
Further, described control unit is connected with Wind turbines protection system communication, and control unit can receive wind-powered electricity generation
The information of unit overspeed protection system fault is also reported to the police.
Second goal of the invention of the present invention is to provide Wind turbines overspeed protection system described in the above-mentioned any one of a kind of employing
The detection device of detection method of system, specifically, have employed following technical scheme:
A kind of detection device of the detection method of Wind turbines overspeed protection system, described Wind turbines overspeed protection system
System includes the hypervelocity sensor for detecting Wind turbines rotating speed, including
Control unit,
For receiving Wind turbines type information and obtaining corresponding pulse frequency according to Wind turbines type information；
Pulse signal generating unit,
It is connected with control unit, produces corresponding pulse signal according to the pulse frequency that control unit obtains；
Electromagnetic conversion unit,
Be connected with pulse signal generating unit, for return pulse signal generating unit produce pulse signal by its turn
It is changed to corresponding magnetic induction signal；
The magnetic induction signal output part of described electromagnetism switch unit passes corresponding to the hypervelocity of Wind turbines overspeed protection system
The test side of sensor is arranged.
The detection method of the Wind turbines overspeed protection system of the present invention produces simulation wind by pulse signal generating unit
Machine tach signal, can carry out lossless decomposition when Wind turbines maintenance shut-downs to overspeed protection system, it is to avoid fan operation
Time because of overspeed protection system detection cause the damage to blower transmission components, improve Wind turbines detection safety, it is ensured that
Fan operation safety, simple to operation.
Accompanying drawing explanation
The structured flowchart of the detection device of Fig. 1 Wind turbines of the present invention overspeed protection system；
The structured flowchart of the another embodiment of the detection device of Fig. 2 Wind turbines of the present invention overspeed protection system；
The structured flowchart of the another embodiment of the detection device of Fig. 3 Wind turbines of the present invention overspeed protection system；
The structured flowchart of the another embodiment of the detection device of Fig. 4 Wind turbines of the present invention overspeed protection system；
The structural representation of the thin slice inductance of Fig. 5 present invention；
The thin slice inductance mounting structure schematic diagram of Fig. 6 present invention；
The detection method of Fig. 7 Wind turbines of the present invention overspeed protection system；
The detection method of the another embodiment of Fig. 8 Wind turbines of the present invention overspeed protection system；
The operation interface flow chart of the detection device of Fig. 9 Wind turbines of the present invention overspeed protection system.
Label declaration in accompanying drawing: 100-power supply 200-on and off switch 300-control unit 310-single-chip microcomputer 400-arteries and veins
Rush signal generating unit 410-current-limiting resistance 420-electrical switch 430-USB interface 500-electromagnetic conversion unit 501-exhausted
Edge substrate 502-through hole 503-adsorption magnet 504-conductive coil 505-first connects end 506-signal wire socket 507-
Second connects end 510-thin slice inductance 600-data storage cell 610-memorizer 700-manipulates unit 710-button
800-display unit 900-rotor 901-perforate 1000-speed probe 1100-overspeed control device 1200-band shields
Layer usb signal line.
Detailed description of the invention
Detection device and detection method thereof to a kind of Wind turbines overspeed protection system of the present invention below in conjunction with the accompanying drawings
It is described in detail:
Embodiment one
As it is shown in figure 1, the detection device of a kind of Wind turbines overspeed protection system, described Wind turbines overspeed protection system
System includes that the speed probe 1000 for detecting Wind turbines rotating speed, detection device include
Control unit 300, is used for receiving Wind turbines type information and obtaining according to Wind turbines type information corresponding
Pulse frequency；
Pulse signal generating unit 400, is connected with control unit 300, the pulse frequency obtained according to control unit 300
Produce corresponding pulse signal；
Electromagnetic conversion unit 500, is connected with pulse signal generating unit 400, for return pulse signal generating unit
400 pulse signals produced are converted into corresponding magnetic induction signal；
The magnetic induction signal output part of described electromagnetism switch unit 500 is corresponding to the rotating speed of Wind turbines overspeed protection system
The test side of sensor is arranged.
The detection device of the Wind turbines overspeed protection system of the present invention, control unit 300 is according to the wind turbine received
Group type information control wave generating unit 400 produces the pulse signal of simulation Wind turbines rotating speed, and by electromagnetic conversion
Pulse signal is converted to encourage the magnetic induction signal of speed probe 1000 by unit 500, it is achieved lossless to Wind turbines
Wound test, it is to avoid Wind turbines is safeguarded because blower transmission components is caused damage by hypervelocity test, significantly improves Wind turbines test
Safety, it is ensured that running of wind generating set safety, simple to operation.
As an embodiment of the present embodiment, as in figure 2 it is shown, the control unit 300 of the present embodiment is single-chip microcomputer
310, single-chip microcomputer 310 preserves different Wind turbines model and the tables of data of corresponding ultrafast pulses frequency thereof；
Described pulse signal generating unit 400 includes that electrical switch 420, electrical switch 420 connect single-chip microcomputer 310；
Described single-chip microcomputer 310 receives selected Wind turbines type information, according to selected Wind turbines model
In tables of data, obtain corresponding ultrafast pulses frequency, control electrical switch 420 output pulse signal by controlling pin, use
The tach signal of pulse signal simulation Wind turbines.
Further, one end of the present embodiment electrical switch 420 is connected with power supply 100 by current-limiting resistance 410, another
End is connected with the input of electromagnetism switch unit 500.
Specifically, single-chip microcomputer 310 uses STM32F103ZET6 single-chip microcomputer, the Wind turbines type information selected by reception,
And produce pulse signal control electrical switch 420 output pulse signal according to selected Wind turbines type information；Described current limliting
Resistance 410 is for controlling the electric current of output pulse signal.During detection device work, the pulse signal produced by single-chip microcomputer is controlled
Electrical switch connecting and disconnecting realize the output of pulse signal.
As shown in Figure 6, the electromagnetic conversion unit 500 of the present embodiment is arranged on the rotor 900 of Wind turbines, Wind turbines
Rotor on there is perforate 901；The detection of described speed probe 1000 is rectified split hole 901 and is arranged, described electromagnetic conversion
Unit 500 is arranged on position with pores and the side near speed probe 1000.So can ensure electromagnetic conversion unit 500
Export more stable being detected by speed probe 1000.The speed probe 1000 of the present embodiment connects overspeed protection system
Overspeed control device 1100, the Wind turbines rotating speed that overspeed control device 1100 detects according to speed probe 1000 controls wind
The running status of group of motors, to guarantee that it is properly functioning.
As an embodiment of the present embodiment, described electromagnetic conversion unit 500 is air core inductor.
Specifically, described air core inductor is the thin slice inductance 510 using printing circuit board.The present embodiment have employed specific
The thin slice inductance 510 of design, the thickness of thin slice inductance 510 is less than 1cm, and this is mainly due to speed probe 1000 and rotor
Spacing between 900 is the least, and typically at about 1cm, thin slice inductance 510 thickness of particular design can not change now less than 1cm
The installation of thin slice inductance 510 is realized on the basis of having the installation site of speed probe 1000 and mode.
Before carrying out overspeed protection system detection, slow rotor 900, make rotor 900 forward the perforate on rotor disk to
901 align with the front end at speed probe 1000 center and brake, and the perforate 901 that rotor 900 is parked on rotor disk passes with rotating speed
On the Centered position of sensor 1000, thin slice inductance 510 is placed on before speed probe 1000, keeps thin slice inductance
510 centers and speed probe 1000 center alignment.
As shown in Figure 4, the pulse signal generating unit 400 of the present embodiment and electromagnetic conversion unit 500 are by band screen layer
Usb signal line 1200 is connected.Band screen layer usb signal line 1200 can effectively shield external interference signals, improves overspeed protection
The reliability of system detection.
The detection device of the Wind turbines overspeed protection system of the present embodiment, also includes being connected with control unit 300
Data storage cell 600, is used for storing currently selected Wind turbines type information and system settings data, as again starting shooting
Time acquiescence blower fan type information and system arrange.
Preferably, described memory element 600 uses 24FC256 EEPROM EEPROM, with monolithic
Connected by I2C bus between machine, be used for storing currently selected blower fan model and system settings data, as when again starting shooting
Acquiescence blower fan model is arranged with system.
The detection device of the Wind turbines overspeed protection system of the present embodiment, also includes being connected respectively with control unit 800
Display unit 800 and manipulation unit 700, described display unit 800 is for showing the pulse frequency of current PRF signal, logical
Cross operate described manipulation unit 700 carry out pulse frequency be increased or decreased simulation Wind turbines rotor speed.
Preferably, described display unit 800 is touch screen 810, specifically, can use 2.8 inch capacitive touch screen,
Carry out Wind turbines model selection when operator use, test signal controls, system is arranged, current operation information shows
Show.
Preferably, described manipulation unit 700 is button 710.
The detection device of the Wind turbines overspeed protection system of the present embodiment produces pulse signal with single-chip microcomputer for core, logical
Cross touch screen 810 and show the frequency of current PRF signal, model rotor is increased or decreased by what button 710 carried out pulse frequency
Rotating speed, the pulse signal that single-chip microcomputer produces controls electrical switch break-make output pulse signal.
The detection device of the Wind turbines overspeed protection system of the present embodiment also includes for receiving ROMPaq and data
Communication module.
Specifically, communication module is connected with host computer by usb communication cable, and communication module receives the liter that host computer is sent
Level program and data, update with the program upgrading and data realizing the detection device of Wind turbines overspeed protection system.
As a kind of preferred implementation of the present embodiment, described communication module use USB RS-232 transducer.
The detection device of the Wind turbines overspeed protection system of the present embodiment also includes the power supply 100 for power supply, power supply
100 connect control unit 300 by and off switch 200.The inspection that power supply 100 is Wind turbines overspeed protection system of the present invention
Survey device is powered, and on and off switch 200 is used for the connecting and disconnecting that the detection device of Wind turbines overspeed protection system is powered.
Further, the power supply 100 of the present embodiment uses lithium battery.
The detection device of the Wind turbines overspeed protection system of the present embodiment also includes for fixed internal plate and guarantor
Protect internal circuit shell.
Such as, the model providing each integrated circuit that the present embodiment is exemplary is: control unit 300 uses single-chip microcomputer
STM32F103ZET6, pulse signal generating unit 400 uses HEF4052BT, and communication module uses FTDI1232-C, and data are deposited
Storage unit 600 uses 24FC256, display unit 800 to use 2.8 inch touchscreen.
The detection device of the Wind turbines overspeed protection system of the present embodiment is by surpassing corresponding to different model Wind turbines
Speed pulse frequency is saved in the tables of data of single-chip microcomputer 310, and single-chip microcomputer 310 receives the Wind turbines type selected by touch screen 810
After number, in tables of data, obtain ultrafast pulses frequency according to selected blower fan model and produce corresponding pulses signal imitation rotation speed of fan
Signal, controls electrical switch 420 output pulse signal by controlling pin, and pulse signal is delivered to after current-limiting resistance 410 current limliting
Thin slice inductance 510 encourages speed probe 1000, and overspeed protection system is receiving the hypervelocity letter that speed probe 1000 is sent here
Number, if starting Wind turbines protection, then explanation overspeed protection system is normal, otherwise, then explanation overspeed protection system fault.
As it is shown in figure 9, the operation interface flow process of the detection device of a kind of Wind turbines overspeed protection system of the present embodiment
Figure, including:
System electrification start is laggard becomes owner of interface, enters relevant work interface after selecting different operating by operation interface.
Operation Interface Options includes the operations such as the selection of blower fan model, System self-test, system parameter setting, shutdown.
Blower fan model selects: according to preset blower fan model list, select the blower fan model corresponding with tested blower fan,
Master controller is inquired about tables of data after receiving blower fan model parameter and is obtained tested blower fan ultrafast pulses frequency data, arranges timing
Device initial value, preserve currently selected blower fan model to data storage, enter blower fan hypervelocity test interface.Blower fan hypervelocity test circle
Face includes starting, suspends, stops three buttons, and after pressing touch screen interface START button, intervalometer is started working, by arteries and veins
Punching controls pin output control pulse signal to pulse signal generator；After pressing " time-out " button, halt signal exports；When
Main interface is returned to after pressing " stopping " button.
System self-test: System self-test mainly includes touch screen location self-inspection, button test, battery detecting, pulse signal certainly
Dynamic stepping output function, returns to main interface after self-inspection.
System parameter setting: mainly include that touch screen backlight illumination, backlight time, mode of operation select, after setting completed
Return to main interface.
Power-off operation: after power-off operation, Wind turbines overspeed protection test device enters holding state, presses power on button
Shi Zaici starts shooting.
Embodiment two
The present embodiment provides a kind of thin slice inductance, is mainly used on the detection device of Wind turbines overspeed protection system, as
Shown in Fig. 5 and Fig. 6, a kind of thin slice inductance, including insulated substrate 501, conductive coil 504 and signal wire socket 506, described leads
Electric coil 504 is for being in conplane spiral coil, and the two sides of described insulated substrate 501 is respectively provided with conductive coil 504,
One end of the conductive coil 504 on insulated substrate 501 two sides is connected, and the other end is respectively connecting to signal wire socket 506.
The pulsed magnetic field excitation that the thin slice inductance 510 of the present embodiment produces turns speed probe 1000 model rotor 900 turns
Speed, it is possible to achieve the detection to Wind turbines overspeed protection system, it is to avoid blower fan carries out overspeed protection system under operation
Detection causes the damage to blower transmission components, it is ensured that fan operation safety, simple to operation.
The present embodiment have employed the thin slice inductance 510 of particular design, and the thickness of thin slice inductance 510 is less than speed probe
Spacing between 1000 and rotor 900, it is simple to the installation of thin slice inductance 510, and do not change the peace of existing speed probe 1000
Holding position and mode.
Specifically, the thickness of thin slice inductance 510 is less than 1cm, this mainly due to speed probe 1000 and rotor 900 it
Between spacing the least, typically at about 1cm.
Further, the conductive coil 504 of the present embodiment includes the first conduction being correspondingly arranged at insulated substrate 501 two sides
Coil and the second conductive coil, the rotation direction of the first conductive coil is oppositely oriented with the second conductive coil.So make both sides
The field signal produced in conductive coil is strengthened, it is easier to detected by speed probe 1000.
Further, the spiral center of described first conductive coil and the spiral center of the second loop connect.
Specifically, described insulated substrate 501 being offered through hole 502, corresponding first conductive coil of through hole 502 and second is led
The spiral center of electric coil is arranged, and the spiral center of described first conductive coil or the spiral center of the second loop are through logical
Hole 502 is connected.
Further, the spiral outer end of described first conductive coil extend for connect signal wire socket 506 first
Connecting end 505, the second connection end 507 for connecting signal wire socket 506 is extended in the spiral outer end of the second conductive coil.
Further, described signal wire socket 506 is arranged on insulated substrate 501, and signal wire socket 506 uses USB
Socket.
Further, the thin slice inductance 510 of the present embodiment also includes the adsorption magnet for fixedly mounting thin slice inductance, inhales
Attached Magnet is arranged on insulated substrate 501 at least two diagonal angle.
As an embodiment of the present embodiment, copper-foil conducting electricity is laid on the two sides of described insulated substrate 501, and described leads
Etch a spiral-shaped conductive copper coil on electrolytic copper paper tinsel and form conductive coil 504.
Further, the thin slice inductance 510 of the present embodiment can be formed on a printed circuit board, the substrate of printed circuit board
For insulated substrate 501, copper-foil conducting electricity is laid on the substrate two sides of printed circuit board.Use the mode of etching on a printed circuit board
It is directly prepared into thin slice inductance 510, is simple to manufacture conveniently, it is easy to accomplish.
A kind of detection device of the Wind turbines overspeed protection system of the present embodiment, described Wind turbines overspeed protection system
System includes the speed probe 1000 for detecting Wind turbines rotating speed, including
Control unit 300,
For receiving Wind turbines type information and obtaining corresponding pulse frequency according to Wind turbines type information；
Pulse signal generating unit 400,
It is connected with control unit 300, produces corresponding pulse signal according to the pulse frequency that control unit 300 obtains；
Thin slice inductance 510,
It is connected with pulse signal generating unit 400, the pulse signal produced for return pulse signal generating unit 400
It is converted into corresponding magnetic induction signal；
The spiral center of described thin slice inductance 510 is corresponding to the detection of the speed probe of Wind turbines overspeed protection system
End is arranged.
As shown in Figure 6, described thin slice inductance 510 is arranged on the rotor 900 of Wind turbines, on the rotor of Wind turbines
There is perforate 901；
The detection of described speed probe 1000 is rectified split hole 901 and is arranged, and described thin slice inductance 510 is arranged on perforate
Position and the side near speed probe 1000.
Embodiment three
As it is shown in fig. 7, the detection method of a kind of Wind turbines overspeed protection system of the present embodiment, described Wind turbines
Overspeed protection system includes the speed probe for detecting Wind turbines rotating speed, including:
Under Wind turbines stopped status, when control wave generating unit produces pulse signal simulation Wind turbines rotation
The rotor pumping signal to speed probe；
When the frequency of pulse signal reaches the overdrive rate of Wind turbines, it is judged that whether Wind turbines protection system is moved
Make, the most then Wind turbines overspeed protection system is normal, if it is not, then Wind turbines overspeed protection system fault.
The detection method of the Wind turbines overspeed protection system of the present embodiment produces simulation by pulse signal generating unit
Rotation speed of fan signal, can carry out lossless decomposition when Wind turbines maintenance shut-downs to overspeed protection system, it is to avoid blower fan is transported
Cause the damage to blower transmission components because of overspeed protection system detection during row, improve the safety of Wind turbines detection, really
Protect fan operation safety, simple to operation.
Further, described pulse signal generating unit produces pulse signal and can enter according to the different model of Wind turbines
Row is corresponding to be adjusted so that the frequency of pulse signal generating unit generation pulse signal reaches the hypervelocity of different model Wind turbines
Frequency.The overspeed protection system that so can realize the Wind turbines to different model detects, and versatility is higher, it is simple to promote
Application.
Further, described pulse signal generating unit connects electromagnetic conversion unit；
The pulse signal that electromagnetic conversion unit return pulse signal generating unit produces is converted into corresponding magnetic induction
Signal, described speed probe is by detecting the rotating speed of magnetic induction signal acquisition Wind turbines.
Further, described electromagnetic conversion unit 500 is arranged on the rotor of Wind turbines, on the rotor of Wind turbines
There is perforate；
The detection of described speed probe 1000 is rectified split hole and is arranged, and described electromagnetic conversion unit 500 is arranged on out
Hole location and the side near speed probe 1000.
As an embodiment of the present embodiment, described electromagnetic conversion unit 500 is air core inductor.Specifically, institute
The air core inductor stated is the thin slice inductance 510 using printing circuit board.
Before the detection method carrying out overspeed protection system, first Wind turbines is shut down, it is ensured that aerogenerator unit safe stops
Installing thin slice inductance 510 after machine, thin slice inductance 510 installs rear operating impulse signal generating unit and produces pulse signal, and
Increase rotating speed by increasing pulse signal frequency simulation, when arriving hypervelocity rotating speed, observe overspeed protection system whether action, if super
Speed protection system acting positive closing wind power generating set, illustrates that overspeed protection system is working properly, is completed, take off thin slice
Inductance 510, resets wind turbine generator system controller, and prepares to restart unit；If overspeed protection system is failure to actuate, illustrate that hypervelocity is protected
Protecting system is faulty, need to carry out failture evacuation, again carries out overspeed protection detection after failture evacuation, until overspeed protection system work
Make normal.
As an embodiment of the present embodiment, described pulse signal generating unit is controlled to produce arteries and veins by control unit
Rush signal；
Control unit receives Wind turbines type information and obtains corresponding pulse frequency according to Wind turbines type information,
The pulse frequency that pulse signal generating unit obtains according to control unit produces corresponding pulse signal.
Specifically, described control unit is single-chip microcomputer, and different Wind turbines model and corresponding preserved by single-chip microcomputer
The tables of data of ultrafast pulses frequency；
Described pulse signal generating unit includes electrical switch, and electrical switch connects single-chip microcomputer；
The described Wind turbines type information selected by single-chip microcomputer reception, is counting according to selected Wind turbines model
According to table obtains corresponding ultrafast pulses frequency, control electrical switch output pulse signal by controlling pin, believe with pulse
Number simulation Wind turbines tach signal.
Further, the display unit 800 that described control unit 300 connects respectively and manipulation unit 700,
Described display unit 800 shows the frequency of current PRF signal, carries out arteries and veins by operating described manipulation unit 700
Rush the rotor speed that simulation Wind turbines is increased or decreased of frequency.
As shown in Figure 8, the detection method of a kind of Wind turbines overspeed protection system, including:
Step S1, starts；
Step S2, control unit reads acquiescence Wind turbines model；
Step S3, control unit judges whether to select acquiescence Wind turbines model；
Step S4, the most then carry out step S6, if it is not, then carry out step S5；
Step S5, control unit receives the Wind turbines type information reselected；
Step S6, control unit reads the frequency of respective pulses signal according to the Wind turbines model selected；
Step S7, control unit control wave generating unit produces rotor when pulse signal simulation Wind turbines rotates
Pumping signal to speed probe；
Step S8, it is judged that Wind turbines protection system whether action, the most then Wind turbines overspeed protection system is normal,
If it is not, then Wind turbines overspeed protection system fault.
Further, described control unit is connected with Wind turbines protection system communication, and control unit can receive wind-powered electricity generation
The information of unit overspeed protection system fault is also reported to the police.
The above is only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this patent
Member is in the range of without departing from technical solution of the present invention, when the technology contents of available above-mentioned prompting is made a little change or is modified to
The Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical spirit pair of the present invention
Any simple modification, equivalent variations and the modification that above example is made, all still falls within the range of the present invention program.
Claims (10)
1. a detection method for Wind turbines overspeed protection system, described Wind turbines overspeed protection system includes for examining
Survey the hypervelocity sensor of Wind turbines rotating speed, it is characterised in that including:
Under Wind turbines stopped status, control wave generating unit produces rotor when pulse signal simulation Wind turbines rotates
Pumping signal to speed probe；
When the frequency of pulse signal reaches the overdrive rate of Wind turbines, it is judged that Wind turbines protection system whether action, if
It is that then Wind turbines overspeed protection system is normal, if it is not, then Wind turbines overspeed protection system fault.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 1, it is characterised in that described
Pulse signal generating unit produces pulse signal and can be adjusted correspondingly according to the different model of Wind turbines so that pulse is believed
Number generating unit produces the frequency of pulse signal and reaches the overdrive rate of different model Wind turbines.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 1, it is characterised in that described
Pulse signal generating unit connects electromagnetic conversion unit；
The pulse signal that electromagnetic conversion unit return pulse signal generating unit produces is converted into corresponding magnetic induction signal,
Described hypervelocity sensor is by detecting the rotating speed of magnetic induction signal acquisition Wind turbines.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 3, it is characterised in that described
Electromagnetic conversion unit (500) is arranged on the rotor of Wind turbines, and the rotor of Wind turbines has perforate；
The detection of described hypervelocity sensor (1000) is rectified split hole and is arranged, and described electromagnetic conversion unit (500) is arranged on out
Hole location and the side near hypervelocity sensor (1000).
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 1, it is characterised in that described
Pulse signal generating unit is controlled to produce pulse signal by control unit；
Control unit receives Wind turbines type information and obtains corresponding pulse frequency, pulse according to Wind turbines type information
The pulse frequency that signal generating unit obtains according to control unit produces corresponding pulse signal.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 5, it is characterised in that described
Control unit is single-chip microcomputer, and single-chip microcomputer preserves different Wind turbines model and the tables of data of corresponding ultrafast pulses frequency thereof；
Described pulse signal generating unit includes electrical switch, and electrical switch connects single-chip microcomputer；
The described Wind turbines type information selected by single-chip microcomputer reception, according to selected Wind turbines model in tables of data
The ultrafast pulses frequency that middle acquisition is corresponding, controls electrical switch output pulse signal by controlling pin, uses pulse signal mould
Intend the tach signal of Wind turbines.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 5, it is characterised in that described
Display unit (800) that control unit (300) connects respectively and manipulation unit (700),
The frequency of described display unit (800) display current PRF signal, carries out arteries and veins by operating described manipulation unit (700)
Rush the rotor speed that simulation Wind turbines is increased or decreased of frequency.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 5, it is characterised in that including:
Step S1, starts；
Step S2, control unit reads acquiescence Wind turbines model；
Step S3, control unit judges whether to select acquiescence Wind turbines model；
Step S4, the most then carry out step S6, if it is not, then carry out step S5；
Step S5, control unit receives the Wind turbines type information reselected；
Step S6, control unit reads the frequency of respective pulses signal according to the Wind turbines model selected；
Step S7, when control unit control wave generating unit produces pulse signal simulation Wind turbines rotation, rotor is to turning
The pumping signal of speed sensor；
Step S8, it is judged that Wind turbines protection system whether action, the most then Wind turbines overspeed protection system is normal, if it is not,
Then Wind turbines overspeed protection system fault.
The detection method of a kind of Wind turbines overspeed protection system the most according to claim 8, it is characterised in that described
Control unit is connected with Wind turbines protection system communication, and control unit can receive the letter of Wind turbines overspeed protection system fault
Cease and report to the police.
10. one kind uses the detection of the detection method of Wind turbines overspeed protection system as described in claim 1-9 any one
Device, described Wind turbines overspeed protection system includes the hypervelocity sensor (1000) for detecting Wind turbines rotating speed, its
It is characterised by, including
Control unit (300)
For receiving Wind turbines type information and obtaining corresponding pulse frequency according to Wind turbines type information；
Pulse signal generating unit (400)
It is connected with control unit (300), produces corresponding pulse signal according to the pulse frequency that control unit (300) obtains；
Electromagnetic conversion unit (500),
It is connected with pulse signal generating unit (400), the pulse signal produced for return pulse signal generating unit (400)
It is converted into corresponding magnetic induction signal；
The magnetic induction signal output part of described electromagnetism switch unit (500) passes corresponding to the hypervelocity of Wind turbines overspeed protection system
The test side of sensor is arranged.
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| CN106089600A (en) * | 2016-06-20 | 2016-11-09 | 大唐（赤峰）新能源有限公司 | The detection device of a kind of Wind turbines overspeed protection system and detection method thereof |
| CN107991547A (en) * | 2017-10-25 | 2018-05-04 | 大唐国际发电股份有限公司张家口发电厂 | A kind of wind power generating set overspeed protection system calibration equipment |
| CN108304350A (en) * | 2017-12-25 | 2018-07-20 | 明阳智慧能源集团股份公司 | Fan index prediction and fault early warning method based on big data set neighbor strategy |
| CN108799015A (en) * | 2018-07-26 | 2018-11-13 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of Wind turbines overrunning protection circuit calibration equipment and method of calibration |
| CN109944749A (en) * | 2017-12-21 | 2019-06-28 | 北京金风科创风电设备有限公司 | Method, Apparatus, Apparatus, and Computer-readable Storage Medium for Identifying Extreme Turbulence |
| 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 |
| CN111693811A (en) * | 2020-06-12 | 2020-09-22 | 宁波恒力达科技有限公司 | Test method, device and equipment for low-frequency low-voltage load shedding protection system |
| CN113187673A (en) * | 2021-05-10 | 2021-07-30 | 大唐云南发电有限公司新能源分公司 | Detection method and device for overspeed protection system of wind turbine generator |
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| 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 |
| CN111693811A (en) * | 2020-06-12 | 2020-09-22 | 宁波恒力达科技有限公司 | Test method, device and equipment for low-frequency low-voltage load shedding protection system |
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Application publication date: 20161026 |