CN201786562U - Dual-stator direct drive permanent magnet wind-driven generator - Google Patents
Dual-stator direct drive permanent magnet wind-driven generator Download PDFInfo
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- CN201786562U CN201786562U CN2010202840222U CN201020284022U CN201786562U CN 201786562 U CN201786562 U CN 201786562U CN 2010202840222 U CN2010202840222 U CN 2010202840222U CN 201020284022 U CN201020284022 U CN 201020284022U CN 201786562 U CN201786562 U CN 201786562U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a dual-stator direct drive permanent magnet wind-driven generator, which comprises an inner stator, an outer stator, a cup-shaped rotor, a front flange, a rear flange, a casing, a main shaft, a front bearing, a front shaft sleeve, a front bearing outer cover, a front bearing inner cover, a rear bearing, a rear shaft sleeve, a rear shaft sleeve inner cover, a rear shaft sleeve outer cover, a locking sleeve and a locking nut, wherein the inner stator and the outer stator respectively comprise a stator iron core and a multiphase winding mounted in the stator iron core; the outer stator is fixed on the casing; the inner stator is fixed on a flange opposite to an opening of the cup-shaped rotator; the cup-shaped rotator comprises a rotor core, a support frame for supporting the rotor core and permanent magnets which are mounted on the rotor core, have different polarities and are staggered; and the main shaft penetrates through the front flange, the rear flange and the cup-shaped rotor through the front bearing, the front shaft sleeve, the front bearing outer cover, the front bearing inner cover, the rear bearing, the rear shaft sleeve, the rear bearing inner cover and the rear bearing outer cover and extends out of the front flange and the rear flange which are fixed on the casing. The utility model can effectively improve the efficiency of the motor, reduce the cost of the motor and can be widely applied to various wind power generation fields on ocean and land.
Description
Technical field
The utility model relates to a kind of wind turbine equipment, particularly about a kind of double-stator direct-drive permanent magnet wind powered generator.
Background technique
At present, wind-power electricity generation generator special forward high reliability, low maintenance, reduce assembly, reduce cost, efficient height, direction that level of integration is high develop, general trend is that single-machine capacity constantly increases.In the wind-power generating system of variable speed constant frequency, adopt double-fed asynchronous generator and magneto alternator more.Wherein, double-fed asynchronous generator owing to there is gear-box, exists carbon brush and slip ring on the rotor, and then makes system cost height, poor reliability, maintenance big, and noise pollution is serious.And when its underrun, efficient is lower, and particularly along with the increase of single-machine capacity, problem is more outstanding.Therefore directly drive with non-brushing and more and more receive publicity.Become development in future trend based on variable-speed operation, change slurry apart from the direct-drive permanent magnet wind power generator of adjusting, the slow-speed of revolution, high efficiency, High Power Factor, it has following advantage: 1, the type generator adopts permanent magnet excitation, eliminated excitation loss, improve efficient, realized non-brushing.2, the type generator does not need to set up magnetic field from the electrical network absorbing reactive power when operation, can improve the power factor of electrical network.3, adopt wind energy conversion system to the mode that generator directly drives, cancelled gear-box, improved the efficient and the reliability of wind power generating set, reduced the maintenance of equipment, reduced noise pollution.But direct-drive permanent magnet wind power generator is owing to directly be connected with wind energy conversion system, and its rotating speed is low, number of poles is many, and stator, rotor size are big, are the flat structure, bring the transportation difficult problem of a big motor that can not be ignored thus.And land a lot of wind energy turbine set all is to design in remote mountain area, to ground is installed, passes through some bridges and culvert from Motor Production Test possibly, if the motor external diameter is too big, just can not pass through smoothly.
Also have a kind of use condition to be: marine large-scale wind electricity field is selected direct-drive permanent magnet wind power generator for use, and wind-driven generator takes to disperse the direct and net mode of blower fan control.The mode of disperseing blower fan control directly to be incorporated into the power networks simultaneously belongs to a kind of flexible DC power transmission mode, every typhoon power generator has the changer of oneself, by many typhoons of parallel connection machine, improve transmission capacity, and can control the separate unit blower fan respectively and be operated in its desirable state, not can because of single converter fault cause whole blower fans can not transmission of electric energy to electrical network.At present, the permanent magnet generator that the marine flexible DC power transmission mode of low-speed permanent magnetic direct-drive wind power generating set is adopted is generally the low-voltage alternating-current generator, the Ac that permanent magnet generator sends is behind boosting transformer, be transformed to high voltage direct current output through rectifying device, and receive on the dc bus, realize being incorporated into the power networks.But this generator type complex structure, cost is higher, and efficient reduces.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of high efficiency, high reliability, double-stator direct-drive permanent magnet wind powered generator simple in structure.
For achieving the above object, the utility model is taked following technological scheme: a kind of double-stator direct-drive permanent magnet wind powered generator is characterized in that: it comprises inner stator, external stator, cup-shaped rotor, forward flange, rear flange, housing, main shaft, fore bearing, front shaft sleeve, fore bearing enclosing cover, fore bearing inner cap, rear bearing, rear axle housing, rear bearing inner cap, rear bearing enclosing cover, be used for the lock sleeve of transmitting torque and be used for the locking nut of cup-shaped rotor axially locating; Described inside and outside stator includes stator iron core, and is installed on the polyphase windings in the described stator iron core; Described cup-shaped rotor comprises rotor iron core, supports the supporting frame of described rotor iron core, and is installed on the different staggered permanent magnet of N, S polarity on the described rotor iron core; Described external stator is fixed on the described housing, the opening of described inner stator and described cup-shaped rotor right forward flange and rear flange one of them fix; Described main shaft is by described fore bearing, front shaft sleeve, fore bearing enclosing cover, fore bearing inner cap, rear bearing, rear axle housing, rear bearing inner cap and rear bearing enclosing cover, run through described forward flange, rear flange and cup-shaped rotor, and stretch out outside the described forward flange, described forward flange, rear flange all are fixed on the described housing.
Described external stator and described cup-shaped rotor form first working gas gap, and described cup-shaped rotor and described inner stator form second working gas gap.
Described double-stator direct-drive permanent magnet wind powered generator adopts the series circuit structure, by described permanent magnet, forms by described inside and outside stator, and the series circuit of described cup-shaped rotor, first working gas gap and second working gas gap.
Described N, the different staggered permanent magnet of S polarity are installed on the inside and outside surface of described rotor iron core.
Described N, the different staggered permanent magnet of S polarity are installed in the inside and outside grooving of rotor iron core.
Described inside and outside number of stator slots is the same, and number of pole-pairs is the same, and the polyphase windings of described inside and outside stator all adopts the fractional-slot single-unit apart from winding configuration, and corresponding two with the phase winding series opposite.
The utility model is owing to take above technological scheme, it has the following advantages: 1, double-stator direct-drive permanent magnet wind powered generator of the present utility model is because rotating speed is low, number of poles is many, and the double-stator structure form that adopts can make full use of the inner space of motor, under the equal volume condition, compare with common single stator mechanism, the output voltage of motor and output power can improve 40%～100%, therefore, have improved the motor properties volume ratio effectively.2, the utility model is because the polyphase windings of two inner stators and two external stators all adopts the fractional-slot single-unit apart from winding configuration, and this winding construction form realizes that easily the machine automation rolls off the production line, and lowers the complexity that winding rolls off the production line; Main is this fractional-slot single-unit can reduce the tip lengths of winding apart from winding, makes the length of whole motor reduce, and volume reduces, weight saving; Reducing of winding overhang length reduced copper consumption, also reduced the copper loss of winding, makes the cost of motor reduce, and efficient improves.3, the utility model is owing to adopt the permanent magnet direct-driving aerogenerator of fractional-slot single-unit apart from the winding construction form, the least common multiple of the number of poles of motor and groove number is bigger, can weaken harmonic component and slot ripples component in the magnetic field induction electromotive force that distributes by non sinusoidal wave, and can reduce the location torque that caused by slot effect significantly, this is the operating important indicator of low-speed direct driving permanent magnet generator.4, the utility model be because the double-stator direct-drive permanent magnet wind powered generator that adopts can improve output voltage and motor properties volume ratio effectively in the lower wind-power generating system of rotating speed, and the transportation problem and the marine large-scale direct-drive permanent magnet wind power generator group that can solve land large-scale direct-drive permanent magnet wind power generator effectively adopt the desired high pressure output of flexible DC power transmission mode problem.The utility model can be widely used in various seas, the land wind power generating field.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model;
Fig. 2 is that the utility model is applied to the structural representation in the direct wind-driven generator group.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, be double-stator direct-drive permanent magnet wind powered generator provided by the utility model, it comprises inner stator 1, external stator 2, cup-shaped rotor 3, forward flange 4, rear flange 5, housing 6, main shaft 7, fore bearing 8, front shaft sleeve 9, fore bearing enclosing cover 10, fore bearing inner cap 11, rear bearing 12, rear axle housing 13, rear bearing inner cap 14, rear bearing enclosing cover 15, be used for the lock sleeve 16 of transmitting torque and be used for the locking nut 17 of cup-shaped rotor 3 axially locating.
Inside and outside stator 1,2 includes stator iron core, and is installed on the polyphase windings in the stator iron core.Cup-shaped rotor 3 comprises the supporting frame of rotor iron core, support rotor iron core, and be installed on the inside and outside surface of rotor iron core or be installed on the interior different staggered permanent magnet of N, S polarity of the inside and outside grooving of rotor iron core, and the opening of cup-shaped rotor 3 can be corresponding with forward flange 4, also can be corresponding with rear flange 5.External stator 2 is fixed together with housing 6, the opening of inner stator 1 and cup-shaped rotor 3 right forward flange 4 or rear flange 5 be fixed together.External stator 2 forms first working gas gap with cup-shaped rotor 3, and cup-shaped rotor 3 forms second working gas gap with inner stator 1.Main shaft 7 runs through forward flange 4, rear flange 5 and cup-shaped rotor 3, and stretches out outside the forward flange 4 by fore bearing 8, front shaft sleeve 9, fore bearing enclosing cover 10, fore bearing inner cap 11, rear bearing 12, rear axle housing 13, rear bearing inner cap 14 and rear bearing enclosing cover 15.Forward flange 4, rear flange 5 are fixed together with housing 6.
In the foregoing description, inside and outside stator 1,2 groove numbers are the same, and number of pole-pairs is the same, and the polyphase windings of inside and outside stator 1,2 all adopts the fractional-slot single-unit apart from winding configuration, and corresponding two with the phase winding series opposite.
Double-stator direct-drive permanent magnet wind powered generator of the present utility model adopts the series circuit structure, by in inside and outside surface of rotor iron core or inside and outside grooving, pasting the different and staggered permanent magnet of polarity, form by inside and outside stator 1,2, and the series circuit of cup-shaped rotor 3, first working gas gap and second working gas gap.
As shown in Figure 2, the main shaft 7 of double-stator direct-drive permanent magnet generator of the present utility model directly links to each other with the wheel hub 18 of wind energy conversion system, and the rear flange 5 of described double-stator direct-drive permanent magnet generator links to each other with frame 19.When wind-driven generator adopted interchange and net mode, the supporting with it full power convertor of the stator of double-stator direct-drive permanent magnet generator of the present utility model output winding linked to each other, and realizes the variable speed constant frequency of wind-driven generator; When wind-driven generator adopted the flexible DC power transmission mode, the stator of double-stator direct-drive permanent magnet generator of the present utility model output winding linked to each other with a controlled rectifier, realized the speed constant pressure direct current output of wind-driven generator.
In the various embodiments described above, can also be structurally, in the connection, inside and outside stator winding structure has other to change in form, based on the changes and improvements on the technical solutions of the utility model, should not get rid of outside protection domain of the present utility model.
Claims (9)
1. double-stator direct-drive permanent magnet wind powered generator is characterized in that: it comprises inner stator, external stator, cup-shaped rotor, forward flange, rear flange, housing, main shaft, fore bearing, front shaft sleeve, fore bearing enclosing cover, fore bearing inner cap, rear bearing, rear axle housing, rear bearing inner cap, rear bearing enclosing cover, be used for the lock sleeve of transmitting torque and be used for the locking nut of cup-shaped rotor axially locating;
Described inside and outside stator includes stator iron core, and is installed on the polyphase windings in the described stator iron core; Described cup-shaped rotor comprises rotor iron core, supports the supporting frame of described rotor iron core, and is installed on the different staggered permanent magnet of N, S polarity on the described rotor iron core; Described external stator is fixed on the described housing, the opening of described inner stator and described cup-shaped rotor right forward flange and rear flange one of them fix; Described main shaft is by described fore bearing, front shaft sleeve, fore bearing enclosing cover, fore bearing inner cap, rear bearing, rear axle housing, rear bearing inner cap and rear bearing enclosing cover, run through described forward flange, rear flange and cup-shaped rotor, and stretch out outside the described forward flange, described forward flange, rear flange all are fixed on the described housing.
2. double-stator direct-drive permanent magnet wind powered generator as claimed in claim 1 is characterized in that: described external stator and described cup-shaped rotor form first working gas gap, and described cup-shaped rotor and described inner stator form second working gas gap.
3. double-stator direct-drive permanent magnet wind powered generator as claimed in claim 1, it is characterized in that: described double-stator direct-drive permanent magnet wind powered generator adopts the series circuit structure, by described permanent magnet, form by described inside and outside stator, and the series circuit of described cup-shaped rotor, first working gas gap and second working gas gap.
4. double-stator direct-drive permanent magnet wind powered generator as claimed in claim 2, it is characterized in that: described double-stator direct-drive permanent magnet wind powered generator adopts the series circuit structure, by described permanent magnet, form by described inside and outside stator, and the series circuit of described cup-shaped rotor, first working gas gap and second working gas gap.
5. as claim 1 or 2 or 3 or 4 described double-stator direct-drive permanent magnet wind powered generators, it is characterized in that: described N, the different staggered permanent magnet of S polarity are installed on the inside and outside surface of described rotor iron core.
6. as claim 1 or 2 or 3 or 4 described double-stator direct-drive permanent magnet wind powered generators, it is characterized in that: described N, the different staggered permanent magnet of S polarity are installed in the inside and outside grooving of rotor iron core.
7. as claim 1 or 2 or 3 or 4 described double-stator direct-drive permanent magnet wind powered generators, it is characterized in that: described inside and outside number of stator slots is the same, number of pole-pairs is the same, and the polyphase windings of described inside and outside stator all adopts the fractional-slot single-unit apart from winding configuration, and corresponding two with the phase winding series opposite.
8. double-stator direct-drive permanent magnet wind powered generator as claimed in claim 5, it is characterized in that: described inside and outside number of stator slots is the same, number of pole-pairs is the same, and the polyphase windings of described inside and outside stator all adopts the fractional-slot single-unit apart from winding configuration, and corresponding two with the phase winding series opposite.
9. double-stator direct-drive permanent magnet wind powered generator as claimed in claim 6, it is characterized in that: described inside and outside number of stator slots is the same, number of pole-pairs is the same, and the polyphase windings of described inside and outside stator all adopts the fractional-slot single-unit apart from winding configuration, and corresponding two with the phase winding series opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840222U CN201786562U (en) | 2010-08-06 | 2010-08-06 | Dual-stator direct drive permanent magnet wind-driven generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840222U CN201786562U (en) | 2010-08-06 | 2010-08-06 | Dual-stator direct drive permanent magnet wind-driven generator |
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| CN201786562U true CN201786562U (en) | 2011-04-06 |
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| CN2010202840222U Expired - Lifetime CN201786562U (en) | 2010-08-06 | 2010-08-06 | Dual-stator direct drive permanent magnet wind-driven generator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917101A (en) * | 2010-08-06 | 2010-12-15 | 国电联合动力技术有限公司 | Double-stator direct-drive permanent magnet wind powered generator |
| CN102195423A (en) * | 2011-05-20 | 2011-09-21 | 国电联合动力技术有限公司 | Double-stator permanent magnetic direct-driven generator supported by fixed axles |
| CN102223034A (en) * | 2011-06-10 | 2011-10-19 | 国电联合动力技术有限公司 | Large directly-driven reluctance wind motor and unit system thereof |
| WO2012169924A1 (en) * | 2011-06-10 | 2012-12-13 | Achitaev Andrej Aleksandrovich | Electric generator for a wind energy installation |
| WO2013120230A1 (en) * | 2012-02-17 | 2013-08-22 | 国电联合动力技术有限公司 | Double air-gap hybrid excitation direct-drive switch reluctance wind generator and assembly system thereof |
| CN103795163A (en) * | 2012-10-16 | 2014-05-14 | 三星电子株式会社 | Motor and washing machine having the same |
| CN104917344A (en) * | 2015-06-25 | 2015-09-16 | 高屋电磁技术(深圳)有限公司 | Radial dual-stator permanent magnet generator |
| CN110486237A (en) * | 2019-09-04 | 2019-11-22 | 东方电气集团东方电机有限公司 | A kind of megawatt-level low-speed direct wind-driven generator shafting device |
-
2010
- 2010-08-06 CN CN2010202840222U patent/CN201786562U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917101A (en) * | 2010-08-06 | 2010-12-15 | 国电联合动力技术有限公司 | Double-stator direct-drive permanent magnet wind powered generator |
| CN102195423A (en) * | 2011-05-20 | 2011-09-21 | 国电联合动力技术有限公司 | Double-stator permanent magnetic direct-driven generator supported by fixed axles |
| WO2012159227A1 (en) * | 2011-05-20 | 2012-11-29 | 国电联合动力技术有限公司 | Double-stator permanent magnetic direct-driven wind power generator |
| CN102223034A (en) * | 2011-06-10 | 2011-10-19 | 国电联合动力技术有限公司 | Large directly-driven reluctance wind motor and unit system thereof |
| WO2012169924A1 (en) * | 2011-06-10 | 2012-12-13 | Achitaev Andrej Aleksandrovich | Electric generator for a wind energy installation |
| CN102223034B (en) * | 2011-06-10 | 2013-04-10 | 国电联合动力技术有限公司 | Large directly-driven reluctance wind motor and unit system thereof |
| WO2013120230A1 (en) * | 2012-02-17 | 2013-08-22 | 国电联合动力技术有限公司 | Double air-gap hybrid excitation direct-drive switch reluctance wind generator and assembly system thereof |
| CN103795163A (en) * | 2012-10-16 | 2014-05-14 | 三星电子株式会社 | Motor and washing machine having the same |
| CN104917344A (en) * | 2015-06-25 | 2015-09-16 | 高屋电磁技术(深圳)有限公司 | Radial dual-stator permanent magnet generator |
| CN110486237A (en) * | 2019-09-04 | 2019-11-22 | 东方电气集团东方电机有限公司 | A kind of megawatt-level low-speed direct wind-driven generator shafting device |
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Granted publication date: 20110406 |
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| CX01 | Expiry of patent term |