CN106351790A - Transversely heated ice melting blade of wind turbine and the device and method of melting - Google Patents
Transversely heated ice melting blade of wind turbine and the device and method of melting Download PDFInfo
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- CN106351790A CN106351790A CN201611048939.0A CN201611048939A CN106351790A CN 106351790 A CN106351790 A CN 106351790A CN 201611048939 A CN201611048939 A CN 201611048939A CN 106351790 A CN106351790 A CN 106351790A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000002844 melting Methods 0.000 title claims abstract description 24
- 230000008018 melting Effects 0.000 title claims abstract 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 246
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 238000010257 thawing Methods 0.000 claims description 29
- 210000000744 eyelid Anatomy 0.000 claims description 22
- 230000004888 barrier function Effects 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000004913 activation Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001062233 Salmonella enterica subsp. enterica serovar Texas Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a transversely heated ice melting blade of wind turbine and a device and a method of melting. The blade of wind turbine is provided with a heating layer, an insulation layer and a lighting protection layer which the cover of blades. The heating layer is embedded in the heating material by the heating power wire. The heating layer adopts the method of radial conduction and the transverse heating. The heating layer consists of heating material and heating power wire on radial conduction. The heating layer consists of a transverse wire, a heating tape and an insulated tape on the transverse heating. The heating transverse tape and the insulated transverse tape distributes in interval. The heating transverse tape involves two kinds: the transverse banding and the transverse opened-window. The automatic melting device consists of a switching circuit, a microprocessor and a communication module. The microprocessor makes control for the switching circuit under the control of control center, and then drives procedure of microprocessor and the automatic ice melting subroutine to melt or finish melting. The transversely heated ice melting blade of wind turbine and a device and a method of melting can judge the blade whether freeze or not and the automatically melt in time to avoid turbine stopping working for freezing.
Description
(1) technical field
The invention belongs to wind power generation field, it is related to the Transverse Heated ice-melt blade of wind-driven generator and ice-melting device and its melts
Ice method.
(2) background technology
At present, the positive large-scale promotion application of wind-driven generator, but in winter, blade of wind-driven generator can lead to because of icing
Shut down.Solve the problems, such as that blade of wind-driven generator ice-melt can avoid shutting down, because blade freezes, the wind park production loss leading to.
" blade de-icing device and wind power generating set, blade remove the Chinese patent of Application No. cn201511019717.1
Ice method " it is passed through gas in overlay film when blade needs deicing using air pump and so that it is expanded, quickly complete blade deicing.Shen
Please number for cn201511014146.2 Chinese patent " ice-melt heating arrangement of blade of wind-driven generator and preparation method thereof ", profit
With being provided with carbon epitaxial heater, for the icing region of heated shell leading edge, to realize ice-melt and to prevent from freezing.Application No.
Cn201610382608.4 " a kind of automatic anti-icing and deicing system of fan blade and anti-icing and deicing method " utilizes automated de-icing system
Determine fan blade icing conditions, automatically carry out anti-icing process.Although above-mentioned prior art all employs different deicing equipments
With method, blade is carried out with ice-melt, but in actual use because the situation that icing effect generates electricity also often has generation, prior art is also
The needs of actual production can not be met, the ice-melt problem of fan blade has been the obstacle that winter wind-power electricity generation produces, and compels to be essential
New technique is wanted to be solved.
(3) content of the invention
The purpose of the present invention is the present situation that can't normally use in production application for prior art, provides one
Kind can the blade of wind-driven generator of ice-melt in real time and real-time ice-melting device and its de-icing method, tie in blade of wind-driven generator
Carry out real-time automatic defrosting during ice it is ensured that in cold weather wind power generator normal power generation.
The purpose of the present invention is achieved in that: a kind of Transverse Heated ice-melt blade of wind-driven generator and ice-melting device,
Blade of wind-driven generator is made up of blade girder and blade eyelid covering.Outside blade eyelid covering, it is provided with one layer of zone of heating and wraps completely
Wrap blade eyelid covering, the fully wrapped around zone of heating of insulating barrier is set outside zone of heating, setting lightning protection layer is complete outside insulating barrier
Parcel insulating barrier, lightning protection layer is connected with drawing thunder ground wire.Zone of heating is made up of heating material and heating power supply wire, and heating power supply is led
Line is embedded in heating material.
Zone of heating has zone of heating radial direction electrically conducting manner and two kinds of methods for designing of zone of heating Transverse Heated mode, horizontal in zone of heating
To in mode of heating, the heating cross band of zone of heating has horizontal banding and horizontal windowing two ways.
In zone of heating radial direction electrically conducting manner, zone of heating is made up of heating material and heating power supply wire, and heating power supply is led
Line major part is embedded in heating material, but exposes in leaf root part, for being connected with ice-melt power supply by on-off circuit；
Heating power supply wire is not connected to each other, and all from root of blade (abbreviation blade root) along wind wheel radial direction to blade tip (abbreviation leaf
Point)；Two heating power supply wires are exposed plain conductor；Wherein one heating power supply wire is along blade profile periphery in the past
The distance of edge to another heating power supply wire is equal to the distance of another heating power supply wire from trailing edge with along cross sectional periphery.
In the Transverse Heated mode of zone of heating, Transverse Heated layer is by two horizontal wires and some heating cross bands, absolutely
Edge cross band is constituted, and horizontal wire major part is embedded in heating cross band and insulation cross band, but exposes in leaf root part, is used for
Connected with ice-melt power supply by on-off circuit；Two horizontal wires (10-1,10-2) are all the wire that outside is enclosed with insulating barrier；
Heating cross band and insulation cross band press that wind wheel is radially connected, cover in the outside of blade eyelid covering, heat cross band with the cross band that insulate and press wind
Wheel radial is spaced apart, and heating cross band quantity is equal with insulation cross band quantity or lacks 1 or big 1.Laterally wire passes through switch
Circuit is connected with ice-melt power supply, and horizontal wire is not connected to each other, and all from blade root along wind wheel radial direction to blade point, is embedded into and adds
In the middle of hot horizontal stripe and insulation horizontal stripe.
Automatic defrosting equipment is made up of on-off circuit, microprocessor and communication module.Microprocessor is two-way with communication module
Communication, on-off circuit is controlled, on-off circuit one end connect ice-melt power supply, one end connect can ice-melt fan blade heating
Power lead or horizontal wire.Communication module is connected with wind-driven generator monitoring system and wind park control centre simultaneously, melts
Ice electric power output voltage is equal to heating material running voltage, and output meets the power demand needed for blade ice-melt.In heating
In layer Transverse Heated mode, the horizontal ribbon-like manner of the heating cross band of zone of heating is: two horizontal banding heating wires are along heating
The edge of cross band is embedded in horizontal banding heating material, and two horizontal banding heating wires are respectively embedded into horizontal banding heating material
Both sides, two horizontal banding heating wires are exposed plain conductor.Wherein one horizontal banding heating wires with laterally
Wherein one wire short circuit of wire connects, and another wire short circuit of another horizontal banding heating wires and horizontal wire is connected.
Laterally banding heating material in the centre of two horizontal banding heating wires and wraps up horizontal banding heating wires.
In zone of heating Transverse Heated mode, the horizontal turn on window in the heating cross band turn on window of zone of heating is: two
The root heating wires that laterally open a window are embedded in horizontal banding heating material along the edge of heating horizontal stripe, two laterally windowing heating
Wire is respectively embedded into windowing insulant and the both sides of windowing heating material；Two heating wires that laterally open a window are exposed gold
Belong to wire；Wherein one heating wires that laterally open a window are connected with wherein horizontal wire short circuit, another laterally windowing heating
Wire is connected with another horizontal wire short circuit.Windowing insulant and windowing heating material are in be distributed in two laterally to open
Between window heating wires.Heating cross band has n root, and insulation cross band has m root, and m is equal to n or m and is equal to n-1 or m equal to n+1.Windowing is absolutely
Edge material two laterally open a window heating wires fully wrapped around with windowing heating material.
On-off circuit is made up of two groups of identical circuit, and two groups of switch port a are connected respectively to two electricity of ice-melt power supply
Source output terminal, heats electricity when connecting two blades respectively using two groups of switch port b during using zone of heating radial direction electrically conducting manner
Source wire, when using zone of heating Transverse Heated mode, two groups of switch port b connect the horizontal wire of two blades respectively.
The microprocessor of automatic defrosting equipment is communicated with wind-driven generator monitoring system by communication module, reads wind-force and sends out
The related data of motor, including the temperature outside electromotor, the generated output of electromotor reality output, wind speed；Microprocessor leads to
Cross the switch on and off of controlling switch circuit to implement ice-melt and not ice-melt；Microprocessor passes through in communication module and wind park control
The heart communicates, and receives the order of wind park control centre, starts ice-melt or terminate ice-melt under the control of wind park control centre；Program
Flow process includes microprocessor program flow process and automatic defrosting subprogram.
Microprocessor program flow process:
The first step: the order of wind park control centre is received by communication module；
Second step: the order of analysis wind park control centre, judge whether to start ice-melt？It is to enter the 8th step；No: to enter
3rd step；
3rd step: the order of analysis wind park control centre, judge whether to terminate ice-melt？It is to enter nine steps；No: to enter the
Four steps；
4th step: the order of analysis wind park control centre, judge whether by automatic defrosting subprogram controlling switch circuit？
No, enter the first step；It is: enter the 5th step；
5th step: run automatic defrosting subprogram, enter the 6th step；
6th step: analysis automatic defrosting subprogram activation result, judge whether to start ice-melt？It is to enter the 8th step；No:
Enter the 7th step；
7th step: analysis automatic defrosting subprogram activation result, judge whether to terminate ice-melt？It is to enter the 9th step；No:
Enter the first step；
8th step: the switch of ON switch circuit, so that blade energising starts ice-melt, enters the first step；
9th step: disconnect the switch of on-off circuit so that blade power-off terminates ice-melt, enter the first step.
Automatic defrosting subprogram:
The first step: wind powered generator system data is read by communication module, read data packet includes outside wind-driven generator
Temperature t, current wind speed v, current wind generated output power p, enter second step；
Second step: judge that t is less than zero centigrade？It is to enter the 14th step；No: to enter the 3rd step；
3rd step: outside first 6 hours electromotors, mean temperature is less than ice-melt critical temperature in 6 hours？It is to enter the 14th
Step；No, enter the 4th step.
4th step: outside first 12 hours electromotors, mean temperature is less than ice-melt critical temperature in 12 hours？It is to enter the tenth
Four steps, no, enter the 5th step；
5th step: outside first 24 hours electromotors, mean temperature is less than ice-melt critical temperature in 24 hours？It is to enter the tenth
Four steps, no, enter the 6th step.
6th step: judge in ice-melt？It is to enter the 7th step, no, enter the 17th step；
7th step: judge that t is more than and terminate ice-melt temperature？It is to enter the 11st step；No, enter the 8th step；
8th step: judge that outside first 6 hours electromotors, mean temperature is more than end ice-melt critical temperature in 6 hours？It is to enter
Enter the 11st step, no, enter the 9th step；
9th step: judge that outside first 12 hours electromotors, mean temperature is more than end ice-melt critical temperature in 12 hours？It is,
Enter the 11st step, no, enter the tenth step.
Tenth step: outside first 24 hours electromotors, mean temperature is more than end ice-melt critical temperature in 24 hours？No, enter
17th step；It is: enter the 11st step；
11st step: look into the mapping table of the electromotor minimum power stopping ice-melt and wind speed according to wind speed, obtain
Stop the electromotor minimum power mi of ice-melt under current wind speed v, enter the 12nd step；
12nd step: judge that wind driven generator output power p is less than mi？No, enter the 13rd step；It is: enter 17
Step；
13rd step: send end ice-melt and notify, switching off of controlling switch circuit, enter the 18th step；
14th step: the mapping table that the electromotor peak power starting ice-melt and wind speed are looked into according to current wind speed v, obtain
To electromotor peak power ma starting ice-melt under current wind speed, enter the 15th step；
15th step: judge that wind driven generator output power p is more than ma？It is to enter the 17th step；No, enter the tenth
Six steps；
16th step: send beginning ice-melt and notify, the switch connection of controlling switch circuit, enter the 18th step；
17th step: do not do any switch motion, enter the 18th step；
18th step: return mastery routine.
The positive effect of the present invention is: solves the deficiencies in the prior art, conscientiously ensures the wind power generator in cold weather
Normal power generation.The present invention can judge during cold weather, whether blade of wind-driven generator freezes in time, finds blade of wind-driven generator
Real-time automatic defrosting can be carried out, it is to avoid the generation of the phenomenon that cold weather wind-driven generator is shut down at present after icing.
4th, brief description
Fig. 1 is the blade of wind-driven generator overall structure diagram of the present invention.
Fig. 2 is the blade of wind-driven generator cross-sectional structure schematic diagram of the present invention.
Fig. 3 is that the blade of wind-driven generator zone of heating of the present invention adopts radial direction electrically conducting manner schematic diagram.
Fig. 4 is the blade of wind-driven generator zone of heating Transverse Heated schematic diagram of the present invention.
Fig. 5 be the present invention blade of wind-driven generator zone of heating Transverse Heated mode in transverse conductance schematic diagram.
Fig. 6 be the present invention zone of heating Transverse Heated mode in heat cross band horizontal banding schematic diagram.
Fig. 7 be the present invention zone of heating Transverse Heated mode in heat cross band horizontal turn on window schematic diagram
Fig. 8 is the present invention from ice-melting device structure chart.
Fig. 9 is annexation figure when automatic defrosting equipment uses.
Figure 10 is the present invention from ice-melting device breaker in middle circuit theory diagrams.
Figure 11 is the microprocessor schematic diagram from ice-melting device of the present invention.
Figure 12 is the communication module schematic diagram from ice-melting device of the present invention.
Figure 13 is the present invention from ice-melting device microprocessor program flow chart.
Figure 14 is the present invention from ice-melting device microprocessor automatic defrosting subroutine flow chart.
In figure, 1 lightning protection layer, 2 blade girder, 3 insulating barriers, 4 zones of heating, 5 blade eyelid coverings, 6-1,6-2 heating power supply wire,
7 heating materials, 8-1～8-n heats cross band, 9-1～9-m insulation cross band, the horizontal wire of 10-1,10-2,11-1,11-2 transverse belt
Shape heating wires, 12 horizontal banding heating materials, 13-1～13-k windowing insulant, 14-1～14-k windowing heating material,
15-1,15-2 laterally open a window heating wires, 16 on-off circuits, 17 microprocessors, 18 communication modules, 19 can ice-melt fan blade,
20 wind-driven generator monitoring systems, 21 wind park control centres.
5th, specific embodiment
Referring to accompanying drawing 1,2.
Conventional wind generator blade is made up of blade girder 2 and blade eyelid covering 5, and the blade girder of the present invention and blade cover
Skin routinely blade design method design.The present invention outside blade eyelid covering 5, be provided with one layer of zone of heating 4 fully wrapped around live leaf
Piece eyelid covering 5, in the zone of heating 4 outside setting fully wrapped around zone of heating 4 of insulating barrier 3, arranges lightning protection layer 1 in insulating barrier 3 outside complete
Parcel insulating barrier 3, lightning protection layer is connected with drawing thunder ground wire.The fully wrapped around zone of heating of insulating barrier, insulating barrier adopts insulant.This reality
Apply an insulant and adopt glass fibre.Lightning protection layer is the wire netting of fully wrapped around insulating barrier, or sheet metal.Lightning protection layer with draw thunder
Ground wire connects.In example, the material of lightning protection layer selects copper sheet in real time.
Referring to accompanying drawing 3-7.
Zone of heating is made up of heating material and heating power supply wire, and heating power supply wire is embedded in heating material.Heating
Material is the material that can convert electrical energy into heat energy after a kind of powering up, and selects the exothermic material of positive temperature coefficient effect, such as
Polymer and the exothermic material of black stock synthesis.The required voltage of heating material heating, referred to as heating material running voltage.
Heating material is coated in outside blade eyelid covering, fills and cover blade eyelid covering.The present embodiment selects Wuhu Jia Hong new material company limited
The cross-linking radiation ptc semi-conducting material producing.Heating material running voltage is AC 220 V.In the present embodiment, heating power supply is led
Line options copper cash.
Zone of heating 4 has zone of heating radial direction electrically conducting manner and two kinds of methods for designing of zone of heating Transverse Heated mode, in zone of heating
In Transverse Heated mode, the heating cross band 8-1～8-n of zone of heating has horizontal banding and horizontal windowing two ways.
In zone of heating radial direction electrically conducting manner, zone of heating is made up of heating material 7 and heating power supply wire 6-1,6-2, and two
Root heating power supply wire major part is embedded in heating material 7, but exposes in leaf root part, for by on-off circuit with
Ice-melt power supply connects；Two heating power supply wires (6-1,6-2) are exposed plain conductor.Two heating power supplies wire 6-1,6-
2 are not connected to each other, and all from root of blade along wind wheel radial direction to blade tip；A heating power supply wire from the point of view of blade profile
6-1 along blade profile periphery from leading edge to the distance of another heating power supply wire 6-2 and heating power supply wire 6-1 along section
Week is equal to the distance of heating power supply wire 6-2 from trailing edge.
In the Transverse Heated mode of zone of heating, Transverse Heated layer is by horizontal wire and heating cross band 8-1～8-n, insulation
Cross band 9-1～9-m is constituted, and horizontal wire major part is embedded in heating cross band 8-1～8-n and insulation cross band 9-1～9-m, but
It is to expose in leaf root part, for being connected with ice-melt power supply by on-off circuit；Two horizontal wires (10-1,10-2) are all
Outside is enclosed with the wire of insulating barrier；Radially connected, covering that heating cross band 8-1～8-n and insulation cross band 9-1～9-m press wind wheel
In the outside of blade eyelid covering, heat cross band 8-1～8-n and insulation cross band 9-1～9-m and press the distribution of wind wheel spaced radial, circularize
Banding covers outside blade eyelid covering.Heating cross band has n root, and insulation cross band has m root, and m is equal to n or m and is equal to n-1 or m equal to n+
1；Laterally wire 10-1,10-2 are connected with ice-melt power supply by on-off circuit, horizontal wire 10-1,10-2 not short-circuit company each other
Connect, and all from root of blade along wind wheel radial direction to blade tip, be embedded in the middle of heating horizontal stripe and insulation horizontal stripe.
In zone of heating Transverse Heated mode, the horizontal ribbon-like manner of the heating cross band 8-1～8-n of zone of heating is: two
Laterally banding heating wires 11-1,11-2 are embedded into horizontal banding heating material 12 along the edge of heating horizontal stripe 8-1～8-n
In, two horizontal banding heating wires 11-1,11-2 is respectively embedded into the both sides of horizontal banding heating material 12；Two horizontal bandings
Heating wires (11-1,11-2) are exposed plain conductor；Laterally banding heating wires 11-1 and horizontal wire 10-1 short circuit
Connect, horizontal banding heating wires 11-2 are connected with horizontal wire 10-2 short circuit；Laterally banding heating material 12 is horizontal at two
Horizontal banding heating wires 11-1,11-2 are simultaneously wrapped up in the centre of banding heating wires 11-1,11-2.
Laterally banding heating material in the centre of horizontal banding heating wires 11-1,11-2 and wraps up 11-1,11-2；Laterally
Banding heating material is coated on blade eyelid covering, is the material that can convert electrical energy into heat energy after a kind of powering up, selects positive temperature
The exothermic material of coefficient effect, this example adopts polymer and the exothermic material of black stock synthesis.Heating material heating is required
Voltage, referred to as horizontal banding heating material running voltage.Laterally banding heating material is coated in outside blade eyelid covering, in horizontal banding
Fill and cover blade eyelid covering between heating wires.
In zone of heating Transverse Heated mode, the heating cross band 8-1～horizontal turn on window of 8-n of zone of heating is: laterally opens
Window heating wires 15-1,15-2 embed windowing insulant 13-1～13-k and windowing heating material along the edge of heating horizontal stripe
In 14-1～14-k, laterally windowing heating wires 15-1,15-2 are respectively embedded into windowing insulant 13-1～13-k and windowing adds
The both sides of hot material 14-1～14-k；Horizontal windowing heating wires 15-1 are connected with horizontal wire 10-1 short circuit, and laterally windowing adds
Thermal wire 15-2 is connected with horizontal wire 10-2 short circuit；Windowing insulant 13-1～13-k and windowing heating material 14-1～
14-k is in be distributed in laterally to open a window between heating wires 15-1,15-2, and windowing insulant 13-1～13-k and windowing add
Fully wrapped around horizontal windowing heating wires 15-1,15-2 of hot material 14-1～14-k.Laterally windowing heating wires 15-1,15-2 are
Exposed metal or alloy lead wire.
Windowing heating material is coated on blade eyelid covering, is the material that can convert electrical energy into heat energy after a kind of powering up, choosing
Select the exothermic material of positive temperature coefficient effect, this example adopts polymer and the exothermic material of black stock synthesis.Windowing heating
The required voltage of material heating, referred to as open a window heating material running voltage.Windowing heating material is coated in outside blade eyelid covering, horizontal
Fill and windowing insulant between windowing heating wires and cover blade eyelid covering.Windowing insulant adopts insulant
It is made.Embodiment adopts glass fibre.
Accompanying drawing 8-12 gives automatic defrosting equipment drawing.
Referring to accompanying drawing 8,9.
The ice-melt of the present invention is completed by automatic defrosting equipment.Ice-melting device is by on-off circuit 16, microprocessor 17 and communication
Module 18 is constituted.Microprocessor 17 and communication module 18 two-way communication, are controlled to on-off circuit 16, and on-off circuit one end is even
Connect two out-put supply terminals of ice-melt power supply, one end connect can ice-melt fan blade 19 heating power supply wire 6-1,6-2 or
Person horizontal wire 10-1,10-2, communication module 18 is connected with wind-driven generator monitoring system 20 and wind park control centre 21 simultaneously
Connect, ice-melt electric power output voltage is equal to heating material running voltage, or horizontal banding heating material running voltage, or windowing
Heating material running voltage, output meets the power demand needed for blade ice-melt.
Microprocessor implements ice-melt by the switch on and off of controlling switch circuit.Microprocessor passes through communication module and wind
Control centre of power plant communicates, and receives the order of wind park control centre, starts ice-melt or knot under the control of wind park control centre
Shu Rongbing.Microprocessor is communicated with wind-driven generator monitoring system by communication module, reads the related data of wind-driven generator,
Data includes the temperature outside electromotor, the generated output of electromotor reality output, wind speed.
Ice-melt electric power output voltage is equal to heating material running voltage, and output meets the power need needed for blade ice-melt
Ask
Referring to accompanying drawing 10.
On-off circuit 16 of the present invention is made up of two groups of identical circuit, and two groups of switch port a are connected respectively to ice-melt power supply
Two output port of power source.In zone of heating radial direction electrically conducting manner, two groups of switch port b are connected to blade heating power supply wire
6-1,6-2, in the Transverse Heated mode of zone of heating, two groups of switch port b connect horizontal conductor wire end 10-1,10-2 of blade.Open
Close closure so that zone of heating energising, implement ice-melt；Switch off so that ice-melt is not implemented in zone of heating power-off.
The switch kt of the present embodiment is using Japanese Omron Corp, ly1-j.In circuit, ut1 produces for Toshiba Corp
Tlp521.Qt4 is the ss9013 that fairchild semiconductor corporation company of the U.S. produces.Qt1 is U.S.
The in4148 that fairchild semiconductor corporation company of state produces.Two groups of relayin1 connect micro- respectively
The gpio pin of processor.
Referring to accompanying drawing 11.
In the present embodiment, the microprocessor of automatic defrosting equipment selects single-chip microcomputer.Single-chip microcomputer is U.S. texas
Instruments company produces, u11:msp430f5438.
Referring to accompanying drawing 12.
Communication module selects rs232 interface.In Figure 12, u8:max232 is rs232 interface chip, by maxim company of the U.S.
Produce.Ch3 loopa, ch3 loopb are connected with wind-driven generator monitoring system communication interface connecting line.ch4 loopa、ch4
Loopb is connected with control centre of power plant.
Referring to accompanying drawing 13,14.
Microprocessor program flow process:
The first step: the order of wind park control centre is received by communication module；
Second step: the order of analysis wind park control centre, judge whether to start ice-melt？It is to enter the 8th step；No: to enter
3rd step；
3rd step: the order of analysis wind park control centre, judge whether to terminate ice-melt？It is to enter nine steps；No: to enter the
Four steps；
4th step: the order of analysis wind park control centre, judge whether by automatic defrosting subprogram controlling switch circuit？
No, enter the first step；It is: enter the 5th step；
5th step: run automatic defrosting subprogram, enter the 6th step；
6th step: analysis automatic defrosting subprogram activation result, judge whether to start ice-melt？It is to enter the 8th step；No:
Enter the 7th step；
7th step: analysis automatic defrosting subprogram activation result, judge whether to terminate ice-melt？It is to enter the 9th step；No:
Enter the first step；
8th step: the switch of ON switch circuit, so that blade energising starts ice-melt, enters the first step；
9th step: disconnect the switch of on-off circuit so that blade power-off terminates ice-melt, enter the first step.
Automatic defrosting subprogram:
The first step: wind powered generator system data is read by communication module, read data packet includes outside wind-driven generator
Temperature t, current wind speed v, current wind generated output power p, enter second step；
Second step: judge that t is less than zero centigrade？It is to enter the 14th step；No: to enter the 3rd step；
3rd step: outside first 6 hours electromotors, mean temperature is less than ice-melt critical temperature in 6 hours？It is to enter the 14th
Step；No, enter the 4th step.
4th step: outside first 12 hours electromotors, mean temperature is less than ice-melt critical temperature in 12 hours？It is to enter the tenth
Four steps, no, enter the 5th step；
5th step: outside first 24 hours electromotors, mean temperature is less than ice-melt critical temperature in 24 hours？It is to enter the tenth
Four steps, no, enter the 6th step.
6th step: judge in ice-melt？It is to enter the 7th step, no, enter the 17th step；
7th step: judge that t is more than and terminate ice-melt temperature？It is to enter the 11st step；No, enter the 8th step；
8th step: judge that outside first 6 hours electromotors, mean temperature is more than end ice-melt critical temperature in 6 hours？It is to enter
Enter the 11st step, no, enter the 9th step；
9th step: judge that outside first 12 hours electromotors, mean temperature is more than end ice-melt critical temperature in 12 hours？It is,
Enter the 11st step, no, enter the tenth step.
Tenth step: outside first 24 hours electromotors, mean temperature is more than end ice-melt critical temperature in 24 hours？No, enter
17th step；It is: enter the 11st step；
11st step: look into the mapping table of the electromotor minimum power stopping ice-melt and wind speed according to wind speed, obtain
Stop the electromotor minimum power mi of ice-melt under current wind speed v, enter the 12nd step；
12nd step: judge that wind driven generator output power p is less than mi？No, enter the 13rd step；It is: enter 17
Step；
13rd step: send end ice-melt and notify, switching off of controlling switch circuit, enter the 18th step；
14th step: the mapping table that the electromotor peak power starting ice-melt and wind speed are looked into according to current wind speed v, obtain
To electromotor peak power ma starting ice-melt under current wind speed, enter the 15th step；
15th step: judge that wind driven generator output power p is more than ma？It is to enter the 17th step；No, enter the tenth
Six steps；
16th step: send beginning ice-melt and notify, the switch connection of controlling switch circuit, enter the 18th step；
17th step: do not do any switch motion, enter the 18th step；
18th step: return mastery routine.
In automatic defrosting subprogram, ice-melt critical temperature in 6 hours, ice-melt critical temperature in 12 hours, ice-melt in 24 hours is critical
Temperature, terminates ice-melt temperature, terminates within 6 hours ice-melt critical temperature, terminates within 12 hours ice-melt critical temperature, 24 hours terminate ice-melt
Critical temperature, stops the electromotor minimum power mi of ice-melt, starts the electromotor peak power ma parameter of ice-melt by experiment really
Fixed.
Claims (6)
1. a kind of Transverse Heated ice-melt blade of wind-driven generator and ice-melting device, blade of wind-driven generator is by blade girder (2)
Constitute with blade eyelid covering (5) it is characterised in that: outside blade eyelid covering, be provided with one layer of zone of heating (4) fully wrapped around live blade
Eyelid covering (5), the fully wrapped around zone of heating (4) of setting insulating barrier (3) outside zone of heating (4), lightning protection is set outside insulating barrier (3)
Layer (1) fully wrapped around insulating barrier (3), lightning protection layer is connected with drawing thunder ground wire；Zone of heating is by heating material and heating power supply wire structure
Become, heating power supply wire is embedded in heating material；
Described zone of heating (4) has zone of heating radial direction electrically conducting manner and two kinds of methods for designing of zone of heating Transverse Heated mode, in heating
In layer Transverse Heated mode, the heating cross band 8-1～8-n of zone of heating has horizontal banding and horizontal windowing two ways；
In zone of heating radial direction electrically conducting manner, zone of heating is by heating material (7) and two heating power supply wire (6-1,6-2) structures
Become, two heating power supply wire (6-1,6-2) major parts are embedded in heating material (7), but expose in leaf root part, use
In by on-off circuit with ice-melt power supply connect；Two heating power supply wires (6-1,6-2) are exposed plain conductor；Heating electricity
Source wire (6-1,6-2) is not connected to each other, and all from blade root along wind wheel radial direction to blade tip；A heating electricity from the point of view of blade profile
Source wire (6-1) along blade profile periphery from leading edge to the distance of another heating power supply wire (6-2) and heating power supply wire
(6-1) equal to the distance of heating power supply wire (6-2) from trailing edge along cross sectional periphery；
In the Transverse Heated mode of zone of heating, Transverse Heated layer is by two horizontal wires (10-1,10-2) and heating cross band (8-
1～8-n), insulation cross band (9-1～9-m) constitute, two horizontal wire (10-1,10-2) major parts are embedded into and heat cross band (8-
1～8-n) and insulation cross band (9-1～9-m) in, but expose in leaf root part, for by on-off circuit with ice-melt power supply
Connect；Two horizontal wires (10-1,10-2) are all the wire that outside is enclosed with insulating barrier；Heating cross band (8-1～8-n) and exhausted
Edge cross band (9-1～9-m) presses that wind wheel is radially connected, covers in the outside of blade eyelid covering, heats cross band (8-1～8-n) and insulation
Cross band (9-1～9-m) presses the distribution of wind wheel spaced radial, and heating cross band has n root, and insulation cross band has m root, and m is equal to n or m and is equal to n-1
Or m is equal to n+1；Laterally wire (10-1,10-2) is connected with ice-melt power supply by on-off circuit, horizontal wire (10-1,10-2)
Not short-circuit connection each other, and all from blade root along wind wheel radial direction to blade tip, be embedded in the middle of heating horizontal stripe and insulation horizontal stripe；
Automatic defrosting equipment is made up of on-off circuit (16), microprocessor (17) and communication module (18), microprocessor (17) with
Communication module (18) two-way communication, is controlled to on-off circuit (16)；On-off circuit one end connects ice-melt power supply, and one end connects
Can the heating power supply wire (6-1,6-2) of ice-melt fan blade (19) or horizontal wire (10-1,10-2), communication module (18)
It is connected with wind-driven generator monitoring system (20) and wind park control centre (21), ice-melt electric power output voltage is equal to heating simultaneously
Material running voltage, output meets the power demand needed for blade ice-melt.
2. the Transverse Heated ice-melt blade of wind-driven generator as claimed in claim 1 and ice-melting device it is characterised in that: described
In zone of heating Transverse Heated mode, the horizontal ribbon-like manner of the heating cross band (8-1～8-n) of zone of heating is: two transverse belts
Shape heating wires (11-1,11-2) are embedded into horizontal banding heating material (12) along the edge of heating horizontal stripe (8-1～8-n)
In, two horizontal banding heating wires (11-1,11-2) are respectively embedded into the both sides of horizontal banding heating material (12)；Two laterally
Banding heating wires (11-1,11-2) are exposed plain conductor；Laterally banding heating wires (11-1) and horizontal wire
(10-1) short circuit connects, and horizontal banding heating wires (11-2) are connected with the short circuit of horizontal wire (10-2)；Laterally banding heating
Material (12) in the centre of two horizontal banding heating wires (11-1,11-2) and wrap up horizontal banding heating wires (11-1,
11-2)；
In the described Transverse Heated mode in zone of heating, laterally turn on window is the heating cross band (8-1～8-n) of zone of heating: two
Laterally windowing heating wires (15-1,15-2) embeds windowing insulant (13-1～13-k) along the edge of heating horizontal stripe and opens
In window heating material (14-1～14-k), two heating wires (15-1,15-2) that laterally open a window are respectively embedded into windowing insulant
(13-1～13-k) and the both sides of windowing heating material (14-1～14-k)；Two laterally windowings heating wires (15-1,15-2)
It is exposed plain conductor；Horizontal windowing heating wires (15-1) is connected with horizontal wire (10-1) short circuit, and laterally windowing adds
Thermal wire (15-2) is connected with horizontal wire (10-2) short circuit；Windowing insulant (13-1～13-k) and windowing heating material
(14-1～14-k) is in be distributed in two laterally to open a window between heating wires (15-1,15-2), and open a window insulant (13-1
～13-k) fully wrapped around with windowing heating material (14-1～14-k) two laterally windowings heating wires (15-1,15-2).
3. the Transverse Heated ice-melt blade of wind-driven generator as claimed in claim 1 and ice-melting device it is characterised in that: described
On-off circuit (16) is made up of two groups of identical circuit, and two power supplys that two groups of switch port a are connected respectively to ice-melt power supply are defeated
Exit port, when connecting blade heating power supply wire (6-1,6- respectively using two groups of switch port b of zone of heating radial direction electrically conducting manner
2), when using zone of heating Transverse Heated mode, two groups of switch port b connect the horizontal wire of blade (10-1,10-2) respectively.
4. wind-driven generator as claimed in claim 1 de-icing method it is characterised in that: the microprocessor of automatic defrosting equipment
(17) communicated with wind-driven generator monitoring system (20) by communication module (18), read the related data of wind-driven generator, bag
Include the temperature outside electromotor, the generated output of electromotor reality output, wind speed；Microprocessor passes through opening of controlling switch circuit
Close break-make to implement ice-melt and not ice-melt；Microprocessor is communicated with wind park control centre (21) by communication module, receives wind
The order of control centre of power plant, starts ice-melt under the control of wind park control centre or terminates ice-melt；Program circuit includes micro- place
Reason device program circuit and automatic defrosting subprogram.
5. wind-driven generator as claimed in claim 1 de-icing method it is characterised in that: microprocessor program flow process:
The first step: the order of wind park control centre is received by communication module；
Second step: the order of analysis wind park control centre, judge whether to start ice-melt？It is to enter the 8th step；No: to enter the 3rd
Step；
3rd step: the order of analysis wind park control centre, judge whether to terminate ice-melt？It is to enter nine steps；No: to enter the 4th step；
4th step: the order of analysis wind park control centre, judge whether by automatic defrosting subprogram controlling switch circuit？No, enter
Enter the first step；It is: enter the 5th step；
5th step: run automatic defrosting subprogram, enter the 6th step；
6th step: analysis automatic defrosting subprogram activation result, judge whether to start ice-melt？It is to enter the 8th step；No: to enter
7th step；
7th step: analysis automatic defrosting subprogram activation result, judge whether to terminate ice-melt？It is to enter the 9th step；No: to enter
The first step；
8th step: the switch of ON switch circuit, so that blade energising starts ice-melt, enters the first step；
9th step: disconnect the switch of on-off circuit so that blade power-off terminates ice-melt, enter the first step.
6. wind-driven generator as claimed in claim 1 de-icing method it is characterised in that: automatic defrosting subprogram:
The first step: wind powered generator system data is read by communication module, read data packet includes temperature outside wind-driven generator
T, current wind speed v, current wind generated output power p, enter second step；
Second step: judge that t is less than zero centigrade？It is to enter the 14th step；No: to enter the 3rd step；
3rd step: outside first 6 hours electromotors, mean temperature is less than ice-melt critical temperature in 6 hours？It is to enter the 14th step；
No, enter the 4th step.
4th step: outside first 12 hours electromotors, mean temperature is less than ice-melt critical temperature in 12 hours？It is to enter the 14th
Step, no, enter the 5th step；
5th step: outside first 24 hours electromotors, mean temperature is less than ice-melt critical temperature in 24 hours？It is to enter the 14th
Step, no, enter the 6th step.
6th step: judge in ice-melt？It is to enter the 7th step, no, enter the 17th step；
7th step: judge that t is more than and terminate ice-melt temperature？It is to enter the 11st step；No, enter the 8th step；
8th step: judge that outside first 6 hours electromotors, mean temperature is more than end ice-melt critical temperature in 6 hours？It is to enter the
11 steps, no, enter the 9th step；
9th step: judge that outside first 12 hours electromotors, mean temperature is more than end ice-melt critical temperature in 12 hours？It is to enter
11st step, no, enter the tenth step.
Tenth step: outside first 24 hours electromotors, mean temperature is more than end ice-melt critical temperature in 24 hours？No, enter the tenth
Seven steps；It is: enter the 11st step；
11st step: look into the mapping table of the electromotor minimum power stopping ice-melt and wind speed according to wind speed, obtain current
Stop the electromotor minimum power mi of ice-melt under wind speed v, enter the 12nd step；
12nd step: judge that wind driven generator output power p is less than mi？No, enter the 13rd step；It is: enter 17 steps；
13rd step: send end ice-melt and notify, switching off of controlling switch circuit, enter the 18th step；
14th step: the mapping table that the electromotor peak power starting ice-melt and wind speed are looked into according to current wind speed v, obtain
Start electromotor peak power ma of ice-melt under current wind speed, enter the 15th step；
15th step: judge that wind driven generator output power p is more than ma？It is to enter the 17th step；No, enter the 16th step；
16th step: send beginning ice-melt and notify, the switch connection of controlling switch circuit, enter the 18th step；
17th step: do not do any switch motion, enter the 18th step；
18th step: return mastery routine；
Wherein, ice-melt critical temperature in 6 hours, ice-melt critical temperature in 12 hours, ice-melt critical temperature in 24 hours, terminates ice-melt temperature
Degree, terminates ice-melt critical temperature for 6 hours, terminates within 12 hours ice-melt critical temperature, 24 hours terminate ice-melt critical temperature, stop melting
The electromotor minimum power mi of ice, the electromotor peak power ma parameter starting ice-melt is determined by experiment.
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|---|---|---|---|
| CN201611048939.0A CN106351790A (en) | 2016-11-23 | 2016-11-23 | Transversely heated ice melting blade of wind turbine and the device and method of melting |
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| CN201611048939.0A CN106351790A (en) | 2016-11-23 | 2016-11-23 | Transversely heated ice melting blade of wind turbine and the device and method of melting |
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| WO2022043520A1 (en) * | 2020-08-28 | 2022-03-03 | General Electric Renovables España S.L. | A rotor blade for a wind turbine |
| CN114233583A (en) * | 2021-12-09 | 2022-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Electric pulse-based wind turbine generator blade deicing device and deicing method |
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| CN109033691A (en) * | 2018-08-16 | 2018-12-18 | 四川大学 | Heating transmission pressure parameter optimization method certainly based on exchange heating power supply |
| CN109033691B (en) * | 2018-08-16 | 2022-12-30 | 四川大学 | Self-heating power transmission line parameter optimization method based on alternating current heating power supply |
| WO2022043520A1 (en) * | 2020-08-28 | 2022-03-03 | General Electric Renovables España S.L. | A rotor blade for a wind turbine |
| CN114233583A (en) * | 2021-12-09 | 2022-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Electric pulse-based wind turbine generator blade deicing device and deicing method |
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Application publication date: 20170125 |