CN106968887A - A kind of speed stabilizing method and system of wind generator system - Google Patents
A kind of speed stabilizing method and system of wind generator system Download PDFInfo
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- CN106968887A CN106968887A CN201610604847.XA CN201610604847A CN106968887A CN 106968887 A CN106968887 A CN 106968887A CN 201610604847 A CN201610604847 A CN 201610604847A CN 106968887 A CN106968887 A CN 106968887A
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- bearing
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000338 in vitro Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005096 rolling process Methods 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0276—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The present invention provides a kind of speed stabilizing method and system of wind generator system, the wheel speed of the generator is monitored in real time by intelligent controller, when the wheel speed of the generator is more than or equal to the first rotary speed threshold value, by controlling the speed regulator to produce brake force so that the wheel speed of the generator is maintained at reference rotation speed value.From realizing under the premise of non-stop-machine, energy regenerating is realized.Improve the service efficiency of small-sized wind power generator group.
Description
Technical field
The present invention relates to the speed stabilizing method and system of electrical generator fields, more particularly to a kind of wind generator system.
Background technology
Current small-sized wind power generator group speed stabilizing system, is broadly divided into and manually empennage is gone off course, the autonomous driftage of empennage
Powered with generator periodic reverse to produce the class of opposing torque three, the rotary speed of impeller is limited in certain scope with this.
When strong wind arrives, artificial driftage is not obviously adapted to.Although autonomous yaw type empennage can revolve impeller under to a certain degree
Rotary speed is reduced, but reliability is low, and which influences the wind energy that the impeller under low wind speed is captured.Generator periodic reverse
Power supply is to produce opposing torque, and the opposing torque that it is produced is limited, and same reliability is low.In addition, foregoing three kinds of methods all can not
Make the rotary blade of wind-driven generator under high wind conditions stabilization of speed in certain scope.Therefore, how small-sized fanses are ensured
When strong wind arrives, system can reliably be run, it appears particularly important.
The content of the invention
The present invention provides a kind of speed stabilizing method and system of wind generator system, under the premise of non-stop-machine, realizing
Energy regenerating.Improve the service efficiency of small-sized wind power generator group.
One side of the invention provides a kind of current vortex speed regulator, including speed regulator main shaft (a1) and speed regulator stator,
Speed regulator air gap (a11) is provided between the speed regulator main shaft (a1) and speed regulator stator, the speed regulator stator is provided with speed stabilizing
Device stator core (a2), the speed regulator stator core (a2) provided with two end ring (a21), described two end ring (a21) it
Between be provided with connecting pole (a22), formd between two described end ring (a21) and connecting pole (a22) for setting speed regulator
The upper cavity (a24) and lower chamber (a25) of magnet exciting coil (a23), the upper cavity (a24) and lower chamber (a25) are also wrapped up outside
There is speed regulator stator insulating frame (a26), the stator insulating frame (a26) is used to completely cut off speed regulator magnet exciting coil (a23) and stator
Iron core (a2) simultaneously extends under an end ring (a21) the speed regulator air gap (a11) for being used to be formed between speed regulator main shaft (a1).
With reference to one side, in the first possible implementation, the both sides of the speed regulator stator are set respectively
There is after rotating disk before speed regulator (a31) and speed regulator before rotating disk (a32), the speed regulator rotating disk after rotating disk (a31) and speed regulator
(a32) it is arranged on speed regulator main shaft (a1) and is rotated coaxially with it, rotating disk after rotating disk (a31) and speed regulator before the speed regulator
(a32) be separately installed with speed regulator front vane (a33) and speed regulator rear blade (a34) on, the speed regulator front vane (a33) and
Speed regulator rear blade (a34) is used to accelerate air flow with speed regulator main shaft (a1) synchronous axial system.
It is described steady in second of possible implementation with reference to the first possible implementation of one side
Bearing (a42) after speed regulator fore bearing (a41) and speed regulator, the speed regulator fore bearing are also equipped with fast device main shaft (a1)
(a41) and after speed regulator the outer ring of bearing (a42) is separately mounted to speed regulator drive end bearing bracket (a43) and speed regulator rear end cap (a44)
On, the speed regulator drive end bearing bracket (a43) and speed regulator rear end cap (a44) are arranged on speed regulator base by connecting bolt (c)
(a5) on, the stator core (a2) is arranged in speed regulator base (a5).
It is described steady in the third possible implementation with reference to second of possible implementation of one side
Provided with the speed regulator front axle being set on speed regulator main shaft (a1) between rotating disk (a31) before fast device fore bearing (a41) and speed regulator
Hold after back-up ring (a61), the speed regulator after bearing (a42) and speed regulator between rotating disk (a32) provided with being set in speed regulator main shaft
(a1) end ring (a62) after the speed regulator on.
With reference to one side, in the 4th kind of possible implementation, the speed regulator magnet exciting coil (a23) is provided with
Provided with a pair of speed regulator magnet exciting coils (a23), the opposite polarity of the adjacent speed regulator magnet exciting coil (a23) in 4 groups, every group.
Second aspect of the invention provides a kind of small-sized wind power generator group, including such as one side or one side
Current vortex speed regulator and generator described in any one possible implementation, the speed regulator main shaft (a1) pass through shaft coupling
(d) it is connected with the generator shaft (b1) of generator；
Intelligent controller is connected with the speed regulator；The intelligent controller is connected with the generator.
With reference to second aspect, in the first possible implementation, the generator is additionally provided with generator amature iron
Core (b11) and electricity generator stator core (b2), the generator rotor core (b11) are arranged on generator shaft (b1), institute
State electricity generator stator core (b2) and be embedded with electricity generator stator coil (b21), the generator rotor core (b11) and generator
Generator amature magnetic shoe (b12) is provided between stator core (b2).
With reference to second aspect, in second of possible implementation, it is also equipped with the generator shaft (b1)
Generator fore bearing (b31) and generator rear bearing (b32), the generator fore bearing (b31) and generator rear bearing (b32)
Outer ring be separately mounted in front end of shield (b41) and commutator end bearing support bracket (b42).
With reference to second of possible implementation of second aspect, in the third possible implementation, the hair
The generator being set on generator shaft (b1) is provided between motor fore bearing (b31) and generator rotor core (b11)
Fore bearing back-up ring (b33), is provided between the generator rear bearing (b32) and generator rotor core (b11) and is set in hair
On generator rear bearing back-up ring (b34) on electric machine main shaft (b1).
It is described in the 4th kind of possible implementation with reference to the third possible implementation of second aspect
Protective cover (b5) is provided with outside axle device (d), generator base (b6) and speed regulator base (a5) are bolted on together.
Third aspect of the present invention provides a kind of speed stabilizing method of wind generator system, and the control method is applied to second
Small-sized wind power generator group described in individual aspect or second aspect any one possible implementation, the control method,
Including：
The intelligent controller determines that the wheel speed of the generator is more than or equal to the first rotary speed threshold value；
The intelligent controller triggers the generator and exports electric energy to the speed regulator；
The speed regulator generates brake force so that the wheel speed of the generator is maintained at reference rotation speed value.
With reference to the 3rd aspect, in the first possible implementation, the reference rotation speed value belongs to according to the hair
The tacho value range that the rated characteristic of motor is determined.
With reference to the first possible implementation of the 3rd aspect, in second of possible implementation, the intelligence
Energy controller triggers the generator and exports electric energy to the speed regulator, including：
The intelligent controller triggers the generator and exports electric energy to the speed regulator magnet exciting coil (a23).
It is described steady in the third possible implementation with reference to second of possible implementation of the 3rd aspect
Fast device generation braking moment so that the wheel speed of the generator is maintained at reference rotation speed value, including：
The speed regulator magnet exciting coil (a23) produces stator field, the stator field before speed regulator rotating disk (a31) and
Loop is constituted between rotating disk (a32) after speed regulator, so that rotating disk after rotating disk (a31) and the speed regulator before the speed regulator
(a32) it is powered；
The stator field produces the system to rotating disk (a32) after rotating disk (a31) before the speed regulator and the speed regulator
Power is so that the wheel speed of the generator is maintained at reference rotation speed value.
It is possible at the 4th kind with reference to the 3rd aspect or any one above-mentioned possible implementation of the 3rd aspect
In implementation, in addition to：The intelligent controller controls the power-up sequence and electric current of the speed regulator magnet exciting coil (a23) big
It is small, so that the size to the brake force is controlled.
With reference to the 4th kind of possible implementation of the 3rd aspect, in the 5th kind of possible implementation, the intelligence
Energy controller controls the power-up sequence and size of current of the speed regulator magnet exciting coil (a23), so as to the big of the brake force
It is small to be controlled, specifically include：
The intelligent controller monitors the wheel speed of the generator；
The intelligent controller controls the logical of the electricity generator stator coil (b21) according to the wheel speed of the generator
Electric order and size of current, so that the size to the brake force is controlled.
With reference to the 5th kind of possible implementation of the 3rd aspect, in the 6th kind of possible implementation, the intelligence
Energy controller controls the power-up sequence and electric current of the electricity generator stator coil (b21) big according to the wheel speed of the generator
It is small, so that the size to the brake force is controlled, specifically include：
The electricity generator stator coil (b21) includes first coil, the second coil, tertiary coil and the 4th coil；It is described
First coil, second coil, the tertiary coil and the 4th coil are respectively provided with the two poles of the earth；
When the wheel speed control of the generator turns on the first coil, the brake force of acquisition is the first system
Power value；
When the wheel speed control of the generator turns on the first coil and during second coil, acquisition it is described
Brake force is the second braking force value；
When the wheel speed control of the generator turns on the first coil and second coil and the 3rd line
During circle, the brake force of acquisition is the 3rd braking force value；
When the wheel speed control of the generator turns on the first coil and second coil and the 3rd line
When circle and four coil, the brake force of acquisition is the 4th braking force value；
Wherein, the first braking force value, the second braking force value, the 3rd braking force value and the 4th system
Power value is incremented by successively.
The speed stabilizing method and system of wind generator system provided in an embodiment of the present invention, by intelligent controller to the hair
The wheel speed of motor is monitored in real time, when the wheel speed of the generator is more than or equal to the first rotary speed threshold value, is led to
Cross and control the speed regulator to produce brake force so that the wheel speed of the generator is maintained at reference rotation speed value.From realizing not
On the premise of shutdown, energy regenerating is realized.Improve the service efficiency of small-sized wind power generator group.
Brief description of the drawings
Fig. 1 implements the structural representation of wind power generating set for the present invention；
Fig. 2 is Fig. 1 side view；
Fig. 3 is the wiring diagram of speed regulator magnet exciting coil；
Fig. 4 is brake force direction schematic diagram；
Fig. 5 is speed regulator stator structure enlarged diagram；
Fig. 6 is a kind of schematic flow sheet of the speed stabilizing method of wind generator system provided in an embodiment of the present invention；
Fig. 7 is the schematic flow sheet of the speed stabilizing method of another wind generator system provided in an embodiment of the present invention.
Embodiment
The present invention is made with reference to embodiment and accompanying drawing further in detail, intactly to illustrate.
As Figure 1-5, the invention provides a kind of small-sized wind power generator group, including current vortex speed regulator and generating
Machine, the speed regulator main shaft a1 is connected by shaft coupling d with the generator shaft b1 of generator.
The generator is additionally provided with generator rotor core b11 and electricity generator stator core b2, the generator amature iron
Core b11 is arranged on generator shaft b1, and the electricity generator stator core b2 is embedded with electricity generator stator coil b21, the hair
Generator amature magnetic shoe b12 is provided between motor rotor core b11 and electricity generator stator core b2.
Generator fore bearing b31 and generator rear bearing b32, the generator are also equipped with the generator shaft b1
Fore bearing b31 and generator rear bearing b32 outer ring are separately mounted in front end of shield b41 and commutator end bearing support bracket b42.
It is provided with and is set on generator shaft b1 between the generator fore bearing b31 and generator rotor core b11
Generator fore bearing back-up ring b33, be provided with and be set between the generator rear bearing b32 and generator rotor core b11
On generator rear bearing back-up ring b34 on generator shaft b1.
Protective cover b5, generator base b6 and speed regulator base a5 is provided with outside the shaft coupling d to be bolted on
Together.
Current vortex speed regulator, including speed regulator main shaft a1 and speed regulator stator, the speed regulator main shaft a1 and speed regulator determine
Speed regulator air gap a11 is provided between son, the speed regulator stator is provided with speed regulator stator core a2, the speed regulator stator core
A2 is provided with and is provided with connecting pole a22, two described end ring a21 and company between two end ring a21, two described end ring a21
Meet the upper cavity a24 and lower chamber a25 formd between post a22 for setting speed regulator magnet exciting coil a23, the upper cavity
Speed regulator stator insulating frame a26, the stator insulating frame a26 is also enclosed with outside a24 and lower chamber a25 to encourage for completely cutting off speed regulator
Magnetic coil a23 and stator core a2 simultaneously extends under an end ring a21 speed regulator for being used to be formed between speed regulator main shaft a1
Air gap a11.
The both sides of the speed regulator stator are respectively arranged with before speed regulator rotating disk a32 after rotating disk a31 and speed regulator, described steady
Rotating disk a32 is arranged on speed regulator main shaft a1 and rotated coaxially with it after rotating disk a31 and speed regulator before fast device, the speed regulator forward
After disk a31 and speed regulator speed regulator front vane a33 and speed regulator rear blade a34, the speed regulator are separately installed with rotating disk a32
Front vane a33 and speed regulator rear blade a34 is used to accelerate air flow with speed regulator main shaft a1 synchronous axial systems.
Bearing a42 after speed regulator fore bearing a41 and speed regulator, the speed regulator are also equipped with the speed regulator main shaft a1
Bearing a42 outer ring is separately mounted on speed regulator drive end bearing bracket a43 and speed regulator rear end cap a44 after fore bearing a41 and speed regulator,
The speed regulator drive end bearing bracket a43 and speed regulator rear end cap a44 are arranged on speed regulator base a5 by connecting bolt c, described fixed
Sub- iron core a2 is arranged in speed regulator base a5.
It is steady on speed regulator main shaft a1 provided with being set between rotating disk a31 before the speed regulator fore bearing a41 and speed regulator
After fast device fore bearing back-up ring a61, the speed regulator after bearing a42 and speed regulator between rotating disk a32 provided with being set in speed regulator master
End ring a62 after speed regulator on axle a1.
The speed regulator magnet exciting coil a23 is provided with 4 groups, every group provided with a pair of speed regulator magnet exciting coil a23, adjacent institute
State speed regulator magnet exciting coil a23 opposite polarity.
When needing speed stabilizing, intelligent controller vortex stable speed function module work, corresponding speed regulator magnet exciting coil a23 is passed to
Adjusted DC current, the magnetic pole, speed regulator air gap a11, speed regulator forward of the magnetic field of generation in speed regulator stator core a2
After disk a31 and speed regulator loop is constituted between rotating disk a32.Wherein pole flux amount size and speed regulator magnet exciting coil a23 circle
Number and the size of current led to are relevant.At this moment before the speed regulator of rotation after rotating disk a31 and speed regulator on rotating disk a32, in it
The magnetic flux in area that the countless back traverses in portion are surrounded just changes, and (its internal countless back traverse, which is just cut, encourages
Magnetic coil produces the magnetic line of force), so as to produce the induced-current of countless vortex shapes inside rotating disk, that is, it is vortexed.With magnetic pole just on
Side is boundary, and will produce magnetic flux respectively in rotating disk a32 after rotating disk a31 and speed regulator before speed regulator is being reduced with magnetic flux
Increased two kinds of vortex, it is in opposite direction, after amount vortex is produced, and magnetic field will produce to powered rotating disk and prevent what it was rotated
Resistance (produces brake force), and the direction of resistance can be judged by Fleming (Flemin) lefft-hand rule.The edge of making a concerted effort of resistance turns
Disk circumferentially forms braking moment opposite to the direction of rotation, as shown in Figure 4.Vortex is before the speed regulator with certain resistance simultaneously
When being flowed after rotating disk a31 and speed regulator in rotating disk a32, fuel factor can be produced and cause heating.And pass through speed regulator front vane a33
Heat is distributed rapidly with the speed regulator rear blade a34 powerful wind-force produced.
On the basis of the impeller setting speed of wind-driven generator (such as the wind speed of 12m/s, now wheel speed 500rpm).
When wind speed is more than 12m/s, the rotating speed that intelligent controller detects impeller is more than 500rpm, the electricity for then exporting generator
Can, speed regulator magnet exciting coil a23 is conveyed to, thus stator field is produced, the magnetic field of generation is in magnetic pole of the stator, and stator field is to band
Rotating disk a32 produces the resistance for preventing it from rotating after rotating disk a31 and speed regulator before the speed regulator of electricity, that is, produces brake force, so that
With generator amature stabilization of speed in certain scope.
Speed regulator magnet exciting coil a23 power-up sequence relation and size of current is controlled by intelligent controller, you can real
Existing different braking moment.
When wind speed is bigger, such as 20m/s, now wind-driven generator capture more wind energies, bigger electricity can be provided
Speed regulator magnet exciting coil a23 can be given, bigger braking moment is correspondingly produced, can be effectively by the rotating speed of wind power generator impeller
Stabilization is in 500rpm or so, so as to provide reliable protection for wind power generating set.
Meanwhile, do not contacted directly between the stator and rotor of current vortex speed regulator, and rotor is exempting from by high reliability
Rolling bearing is safeguarded to support, therefore its reliability is identical with the bearing arrangement of wind-driven generator.
Unnecessary wind energy when current vortex speed regulator arrives strong wind, is converted into the braking moment of itself, by rotary blade
Velocity-stabilization provides more reliable strong wind defencive function for small-sized wind power generator in the scope of setting.
When wind field is when carrying out wind much larger than setting value, due to being vortexed the function of speed regulator, make wind-driven generator still normal
Work.
The rotating speed detecting mould of intelligent controller is detected by the speed-frequency of wind-driven generator, finger will be sent after signal transacting
Make and give vortex speed regulator control module, control speed regulator magnet exciting coil a23 power-up sequence relation and size of current, so as to obtain
Different braking moments, by the rotation stabilization of speed of wind power generator impeller setting scope.
The electric parameter of the size, number of pole-pairs and magnet exciting coil of speed regulator is vortexed, can be by braking moment demand work
Match somebody with somebody.
Contactless braking, improves reliability, extends the service life of product.
In order to be controlled to above-mentioned small-sized wind power generator group, the embodiment of the present invention also provides a kind of small-size wind power-generating
The control method of unit.Fig. 6 is a kind of schematic flow sheet of the speed stabilizing method of wind generator system provided in an embodiment of the present invention,
Reference picture 6, this method includes：
Step 100, the intelligent controller determine that the wheel speed of the generator is more than or equal to the first rotary speed threshold value；
Step 101, the intelligent controller trigger the generator and export electric energy to the speed regulator；
Step 102, the speed regulator generate brake force so that the wheel speed of the generator is maintained at reference rotation speed value.
The control method of small-sized wind power generator group provided in an embodiment of the present invention, is generated electricity by intelligent controller to described
The wheel speed of machine is monitored in real time, when the wheel speed of the generator is more than or equal to the first rotary speed threshold value, is passed through
The speed regulator is controlled to produce brake force so that the wheel speed of the generator is maintained at reference rotation speed value.Do not stopping from realizing
On the premise of machine, energy regenerating is realized.Improve the service efficiency of small-sized wind power generator group.
Preferably, the reference rotation speed value belongs to the tacho value range determined according to the rated characteristic of the generator.I.e.
As long as the reference rotation speed value is in the tacho value range.
Optionally, the intelligent controller of the embodiment of the present invention can also obtain the specified spy of different generators in advance
Property, so as to determine the reference rotation speed value of different generators according to the rated characteristic of different generators；So that the present invention is implemented
The intelligent controller that example is provided possesses outstanding compatibility.
Further, on the basis of Fig. 6, Fig. 7 is steady for another wind generator system provided in an embodiment of the present invention
The schematic flow sheet of fast method, reference picture 7, step 101 includes：
Step 101a, the intelligent controller trigger the generator and export electric energy to the speed regulator magnet exciting coil
(a23)。
Further, step 102, including：
Step 102a, the speed regulator magnet exciting coil (a23) produce stator field, and the stator field is in speed regulator forward
Loop is constituted between rotating disk (a32) after disk (a31) and speed regulator, so that rotating disk (a31) and the speed stabilizing before the speed regulator
Rotating disk (a32) is powered after device；
Step 102b, the stator field are produced to rotating disk (a32) after rotating disk (a31) before the speed regulator and the speed regulator
The raw brake force is so that the wheel speed of the generator is maintained at reference rotation speed value.
Optionally, the control method, in addition to：The intelligent controller controls the speed regulator magnet exciting coil (a23)
Power-up sequence and size of current, so that the size to the brake force is controlled.
Further, the intelligent controller controls the power-up sequence and electric current of the speed regulator magnet exciting coil (a23) big
It is small, so that the size to the brake force is controlled, specifically include：
The intelligent controller monitors the wheel speed of the generator；
The intelligent controller controls the logical of the electricity generator stator coil (b21) according to the wheel speed of the generator
Electric order and size of current, so that the size to the brake force is controlled.
The intelligent controller only needs to configure the i.e. achievable load control to different generators of new parameter.
It should be noted that the electricity generator stator coil (b21) is the one of the composition speed regulator magnet exciting coil (a23)
Part；
Further, at present generally using four groups of coils (first coil, the second coil, tertiary coil and the 4th coil)
Electricity generator stator coil (b21) is constituted, wherein every group of coil there are two poles, the energization of wherein four groups of coils has certain logic
Sequentially,
When the wheel speed control of the generator turns on the first coil, the brake force of acquisition is the first system
Power value；
When the wheel speed control of the generator turns on the first coil and during second coil, acquisition it is described
Brake force is the second braking force value；
When the wheel speed control of the generator turns on the first coil and second coil and the 3rd line
During circle, the brake force of acquisition is the 3rd braking force value；
When the wheel speed control of the generator turns on the first coil and second coil and the 3rd line
When circle and four coil, the brake force of acquisition is the 4th braking force value；
Wherein, the first braking force value, the second braking force value, the 3rd braking force value and the 4th system
Power value is incremented by successively.
It can be seen that, by controlling different coil electricities, different brake force can be obtained.
It should be noted that the present embodiment obtains different brake force using four groups of coils, its is merely illustrative, not right
The specific number of coil produces limitation, for the implementation using other number coils, its principle and phase of the embodiment of the present invention
Together, it should also belong in the scope of protection of the invention.
The above embodiment of the present invention is only that explanation technical solution of the present invention is used simultaneously, only the row of technical solution of the present invention
Lift, the technical scheme and its protection domain being not intended to limit the invention.Using equivalent technologies mean, equivalent apparatus etc. to this hair
The improvement of technical scheme disclosed in bright claims and specification is considered to be without departing from claims of the present invention
And the scope disclosed in specification.
Claims (10)
1. a kind of current vortex speed regulator, it is characterised in that including speed regulator main shaft and speed regulator stator, the speed regulator main shaft and
Speed regulator air gap is provided between speed regulator stator, the speed regulator stator is provided with speed regulator stator core, the speed regulator stator
Iron core is provided between two end ring, two described end ring and is provided with connecting pole, two described shapes between end ring and connecting pole
Into the upper cavity and lower chamber for being used to set speed regulator magnet exciting coil, the upper cavity and cavity of resorption are also enclosed with speed regulator in vitro
Stator insulating frame, the stator insulating frame is used to completely cut off speed regulator magnet exciting coil and stator core and extend to use under an end ring
Speed regulator air gap between formation and speed regulator main shaft.
2. current vortex speed regulator according to claim 1, it is characterised in that the both sides of the speed regulator stator are set respectively
Have before speed regulator after rotating disk and speed regulator before rotating disk, the speed regulator that rotating disk is arranged on speed regulator main shaft after rotating disk and speed regulator
Rotate coaxially, be separately installed with before the speed regulator after rotating disk and speed regulator on rotating disk after speed regulator front vane and speed regulator with it
Blade, the speed regulator front vane and speed regulator rear blade are used to accelerate air flow with speed regulator main shaft synchronous axial system.
3. current vortex speed regulator according to claim 2, it is characterised in that be also equipped with speed stabilizing on the speed regulator main shaft
The outer ring of bearing is separately mounted to before speed regulator after bearing after device fore bearing and speed regulator, the speed regulator fore bearing and speed regulator
On end cap and speed regulator rear end cap, the speed regulator drive end bearing bracket and speed regulator rear end cap are arranged on speed regulator bottom by connecting bolt
On seat, the stator core is arranged in speed regulator base.
4. current vortex speed regulator according to claim 3, it is characterised in that the speed regulator fore bearing and speed regulator forward
Provided with being set in after speed regulator fore bearing back-up ring on speed regulator main shaft, the speed regulator rotating disk after bearing and speed regulator between disk
Between provided with being set in end ring after the speed regulator on speed regulator main shaft.
5. a kind of small-sized wind power generator group, it is characterised in that including the current vortex speed regulator as described in claim 1-4 is any
And generator, the speed regulator main shaft is connected by shaft coupling with the generator shaft of generator；
Intelligent controller is connected with the speed regulator；The intelligent controller is connected with the generator.
6. small-sized wind power generator group according to claim 5, it is characterised in that the generator is additionally provided with generator and turned
Sub- iron core and electricity generator stator core, the generator rotor core are arranged on generator shaft, the generator unit stator iron
In-core is embedded with electricity generator stator coil, and generator amature is provided between the generator rotor core and electricity generator stator core
Magnetic shoe.
7. small-sized wind power generator group according to claim 5, it is characterised in that be also equipped with the generator shaft
Generator fore bearing and generator rear bearing, the outer ring of the generator fore bearing and generator rear bearing are separately mounted to generate electricity
In machine drive end bearing bracket and commutator end bearing support bracket.
8. small-sized wind power generator group according to claim 7, it is characterised in that the generator fore bearing and generator
The generator fore bearing back-up ring being set on generator shaft, the generator rear bearing and generating are provided between rotor core
It is provided between machine rotor iron core on the generator rear bearing back-up ring being set on generator shaft.
9. small-sized wind power generator group according to claim 5, it is characterised in that protection is provided with outside the shaft coupling
Cover, generator base and speed regulator base are bolted on together.
10. a kind of speed stabilizing method of wind generator system, it is characterised in that the control method is applied to claim 5-9 and appointed
Small-sized wind power generator group described in meaning one, the control method, including：
The intelligent controller determines that the wheel speed of the generator is more than or equal to the first rotary speed threshold value；
The intelligent controller triggers the generator and exports electric energy to the speed regulator；
The speed regulator generates brake force so that the wheel speed of the generator is maintained at reference rotation speed value.
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