CN102032119A - Wind driven generator integrating magnetic gear with outer rotor - Google Patents
Wind driven generator integrating magnetic gear with outer rotor Download PDFInfo
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- CN102032119A CN102032119A CN2010105961651A CN201010596165A CN102032119A CN 102032119 A CN102032119 A CN 102032119A CN 2010105961651 A CN2010105961651 A CN 2010105961651A CN 201010596165 A CN201010596165 A CN 201010596165A CN 102032119 A CN102032119 A CN 102032119A
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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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Abstract
The invention discloses a wind driven generator integrating a magnetic gear with an outer rotor. The wind driven generator comprises a stator mechanism, a bearing mechanism and a rotor mechanism, wherein the rotor mechanism comprises the outer rotor and an inner rotor; the stator mechanism is embedded into the outer rotor and is separated from the outer rotor through an air gap; the inner rotor is embedded into the stator mechanism and is separated from the stator mechanism through an air gap; the outer rotor is provided with an outer rotor core and outer rotor permanent magnets of which the adjacent magnetic poles are opposite; the inner rotor is provided with an inner rotor core and inner rotor permanent magnets of which the adjacent magnetic poles are opposite; a magnetism adjusting core mechanism comprises a plurality of magnetism adjusting core blocks which are distributed along the circumferential direction of a support mechanism; an air slot is formed and an armature winding arranged in the air slot is arranged between every two adjacent magnetism adjusting core blocks; and the pole pairs of the armature windings are equal to those of the inner rotor permanent magnets. Due to the design, an inner stator serving as a generating stator is not required to be newly added, the redundancy of parts of the wind driven generator is avoided, and equipment cost is reduced.
Description
Technical field
The present invention relates to a kind of generator, particularly a kind of integrated magnetic gear external rotor wind driven electric generator.
Background technique
In wind-power generating system, air blade is moved in wind, drives wind turbine and rotates; The rotation of wind turbine drives generator again and rotates, thereby produces electric energy.For in, scale wind turbine, the rotational velocity of air blade is generally very slow, greatly about about 100 rev/mins.And for generator, rotating speed of motor is high more, means that the energy density of motor is big more, and the volume of motor is more little, weight is light more.Therefore, generator often is designed to have higher rated speed, greatly about about 2000 rev/mins.So, for the slow-speed of revolution of mating wind turbine and the high rotating speed of generator, often need to be equipped with a raising speed gear-box and connect wind turbine and generator.As everyone knows, the engagement of mechanical gearbox dependence metal-toothed realizes the transmission of torque/power and the change of rotating speed.Thisly stick together the inevasible meeting of mechanism and bring a lot of problems, such as: 1) there is frictional loss; 2) there are mechanical noise and vibration; 3) need periodic maintenance and lubricated, etc.Manufacturing, installation and maintenance cost that this has all strengthened wind power system have reduced energy conversion efficiency.
In order to break away from the variety of problems that mechanical gearbox is brought, in recent years, the researcher has developed multiple direct-drive aerogenerator.The common ground of these generators is that they all have lower rated speed, can directly be connected with wind turbine.As mentioning in the preamble, also there is common problem in these wind-driven generators, and their volume is very big, weight is very heavy, are difficult to make and install.Although increasing new structure, new material are used, to expect to improve the specific power of direct-drive aerogenerator, up to now, well-content solution it is not appear as yet.
Since the problem of mechanical gearbox is because the engagement of metal-toothed causes, the interaction in magnetic field realizes discontiguous speed change transmission between magnet so people consider to utilize, and the gear of developing based on this idea is commonly referred to as magnetic gear.Owing to do not had the mechanism of sticking together, magnetic gear can overcome all drawbacks of aforementioned mechanical gear.In addition, magnetic gear can also provide the overload self-protecting function.Existing magnetic gear is divided into magnet direct coupled type and magnetic field modulation type two big classes.The former is because have only few part magnet to participate in transmission of torque in any moment, thus the torque density that can provide far below mechanical gear, and the latter is because improved the utilization ratio of magnet greatly, so its torque density has reached the degree suitable with mechanical gear.
The design that appears as wind-power generating system of magnetic gear has brought new thinking, how to utilize magnetic gear to replace mechanical gear, even magnetic gear is integrated in the middle of the electricity generating device, proposing to have more, the wind-power generating system of high power density and Geng Gao transmission efficiency will be the direction that very is worth the researcher to pay close attention to.
Publication number is that 200810036366.9 Chinese patent discloses a kind of direct driving composite type permanent magnet motor, comprise a self-controlled type magneto and a concentric type magnetic gear, described self-controlled type magneto and the concentric double-stator and double-rotor structure that assembles of concentric type magnetic gear, promptly by the external rotor and the external stator of magnetic gear, and the internal rotor of magneto and inner stator employing telescoping structure set formation concentric type structure, wherein on the cup type body of internal rotor circumferential uniform P1 to permanent magnet, the circumferential uniform setting-in P2 of the inwall of external rotor cup type body is to permanent magnetic steel, and P1＜P2; External stator is the magnetoresistive type stator, has on it, and NS the circumferential uniform core tooth utmost point, promptly the circumferential uniform fluting of the cup sections heart is filled non-magnet material in the groove, and NS=P1+P2 or NS=P2-P1; Inner stator is made of coiling armature winding on the internal stator iron core.This patent has been given up mechanical transmission component, has improved the transmission efficiency of system, reduces volume, and mechanical transmission component has reduced cost relatively.Yet owing to increased inner stator as the generating stator, and the armature winding of generating is to be embedded on the independent inner stator, and the adjustable magnetic ring is not fully utilized, and the parts redundant phenomenon occurs, therefore, makes cost increase; In addition, the inner and outer surface of the internal rotor of above-mentioned patent all posts permanent magnet, the permanent magnet large usage quantity.
Summary of the invention
For this reason, technical problem to be solved by this invention is to propose a kind of need not to use independent generating stator, thereby avoids parts redundant, and integrated cheaply magnetic gear external rotor wind driven electric generator
A kind of integrated magnetic gear external rotor wind driven electric generator of the present invention comprises
Stator mechanism, described stator mechanism comprises arbor, the supporting mechanism that is connected with described arbor and be located at adjustable magnetic mechanism unshakable in one's determination on the described supporting mechanism;
Gear mechanism is connected with described arbor;
Rotor mechanism, by described gear mechanism and described coaxial connection of stator mechanism, described rotor mechanism comprises external rotor and internal rotor, described stator mechanism is embedded in described external rotor, is separated by air gap; Described internal rotor is embedded in described stator mechanism, is separated by air gap; Wherein, described external rotor is provided with the external rotor external rotor permanent magnet body opposite with adjacent pole unshakable in one's determination, and described internal rotor is provided with the internal rotor internal rotor permanent-magnetic body opposite with adjacent pole unshakable in one's determination; Described adjustable magnetic mechanism unshakable in one's determination comprises several along the adjustable magnetics piece unshakable in one's determination that described supporting mechanism circumferentially distributes, and per two adjacent described adjustable magnetic interblocks unshakable in one's determination have air groove and are placed in armature winding in the described air groove; Wherein, the number of pole-pairs of described armature winding equates with the number of pole-pairs of described internal rotor permanent-magnetic body.
Above-mentioned wind-driven generator, described adjustable magnetic piece unshakable in one's determination is evenly to distribute, and all is mounted with described armature winding in each described air groove.
Above-mentioned wind-driven generator, the piece number of described adjustable magnetic piece unshakable in one's determination equals the number of pole-pairs of described external rotor permanent magnet body and the number of pole-pairs sum of described internal rotor permanent-magnetic body.
Above-mentioned wind-driven generator is equipped with air blade on the described external rotor.
Above-mentioned wind-driven generator, described gear mechanism outer rotor bearing mechanism and the inner rotor bearing mechanism of comprising; Described internal rotor comprises the internal rotor rotating shaft, described internal rotor rotating shaft is connected with described arbor by described inner rotor bearing mechanism, described external rotor comprises the external rotor coupling sleeve, described external rotor permanent magnet body is located on the described external rotor iron core, and described external rotor iron core is located on the described external rotor coupling sleeve, and described external rotor coupling sleeve is connected with described arbor by described outer rotor bearing mechanism.
Above-mentioned wind-driven generator, the described supporting mechanism of described stator is the stator coupling sleeve.
Above-mentioned wind-driven generator, described stator coupling sleeve adopt non-magnet material to make, and the one end is equipped with cowling.
Above-mentioned wind-driven generator, described internal rotor permanent-magnetic is shown consideration in the outer circumferential face of described internal rotor iron core.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. described rotor mechanism comprises external rotor and internal rotor, and described stator mechanism is embedded in described external rotor, is separated by air gap; Described internal rotor is embedded in described stator mechanism, is separated by air gap; Wherein, described external rotor is provided with the external rotor external rotor permanent magnet body opposite with adjacent pole unshakable in one's determination, and described internal rotor is provided with the internal rotor internal rotor permanent-magnetic body opposite with adjacent pole unshakable in one's determination; Described adjustable magnetic mechanism unshakable in one's determination comprises several along the adjustable magnetics piece unshakable in one's determination that described supporting mechanism circumferentially distributes, and per two adjacent described adjustable magnetic interblocks unshakable in one's determination have air groove and are placed in armature winding in the described air groove; The number of pole-pairs of described armature winding equates with the number of pole-pairs of described internal rotor permanent-magnetic body.External rotor, internal rotor and stator mechanism adopt above-mentioned design can realize being positioned at the stator mechanism of external rotor and internal rotor centre as the generating stator, the effect of adjustable magnetic has not only been played by described stator mechanism, and played the effect of generating, need not newly-increased inner stator as the generating stator, avoid the wind-driven generator parts redundant, reduced the cost of equipment.
2. external rotor, internal rotor and stator mechanism adopt air gap to be implemented in contactless transmission of torque.
3. described adjustable magnetic piece unshakable in one's determination is evenly to distribute, and all is mounted with described armature winding in each described air groove; It is more stable that the electric current that makes generating export is compared the electric current that armature winding sent of non-homogeneous arrangement, improved the usability of electric current.
4. air blade is directly installed on the generator external rotor, has saved extra mechanical transmission.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is integrated magnetic gear external rotor wind driven electric generator schematic representation;
Fig. 2 be Figure 1A-A to sectional drawing;
Fig. 3 is the schematic representation of armature winding;
The 1-air blade, 2-external rotor iron core, 3-external rotor permanent magnet body, 4-adjustable magnetic piece unshakable in one's determination, 5-internal rotor permanent-magnetic body, 6-internal rotor iron core, the 7-cowling, the rotating shaft of 8-internal rotor, 9,13-outer rotor bearing mechanism, 10,12-inner rotor bearing mechanism, 11-stator coupling sleeve, the 14-arbor, 15-external rotor coupling sleeve, 16-armature winding
Embodiment
Embodiment 1
As Fig. 1, the integrated magnetic gear external rotor wind driven electric generator shown in 2 comprises
Stator mechanism, described stator mechanism comprises arbor 14, the supporting mechanism that is connected with described arbor and be located at adjustable magnetic mechanism unshakable in one's determination on the described supporting mechanism; Wherein, the described supporting mechanism of described stator is a stator coupling sleeve 11, and described stator coupling sleeve 11 adopts non-magnet material to make, and the one end is equipped with cowling.
Gear mechanism comprises that outer rotor bearing mechanism 9,13 is connected with described arbor 14 with inner rotor bearing mechanism 10,12.
Rotor mechanism, by described gear mechanism and described coaxial connection of stator mechanism, described rotor mechanism comprises external rotor and internal rotor; Described external rotor comprises external rotor coupling sleeve 15 and is located at external rotor iron core 3 on the described external rotor coupling sleeve 15 that described external rotor iron core 3 is provided with the opposite external rotor permanent magnet body 3 of adjacent pole, and air blade 1 is installed on the described external rotor.
Described internal rotor comprises internal rotor rotating shaft 8, and described internal rotor rotating shaft 8 is connected with described arbor by inner rotor bearing mechanism 10,12, described internal rotor be provided with the internal rotor iron core 6 internal rotor permanent-magnetic body 5 opposite with adjacent pole; And described external rotor iron core 2 is located on the described external rotor coupling sleeve 15, and described external rotor coupling sleeve 15 is connected with described arbor 14 by outer rotor bearing mechanism 9,13.Wherein, described internal rotor permanent-magnetic body 5 is affixed on the outer circumferential face of described internal rotor iron core 6.
Described stator mechanism is embedded in described external rotor, is separated by air gap; Described internal rotor is embedded in described stator mechanism, is separated by air gap; Described adjustable magnetic mechanism unshakable in one's determination comprises several along the adjustable magnetics piece 4 unshakable in one's determination that described supporting mechanism circumferentially distributes, and per two adjacent described adjustable magnetic interblocks unshakable in one's determination have air groove and are placed in armature winding 16 in the described air groove; Wherein, the number of pole-pairs of described armature winding 16 equates that with the number of pole-pairs of described internal rotor permanent-magnetic body 5 winding mode of described armature winding as shown in Figure 3.Armature is evenly to distribute around the described adjustable magnetic of pivot piece 4 unshakable in one's determination, all is mounted with described armature winding 16 in each described air groove.The piece number of described adjustable magnetic piece unshakable in one's determination equals the number of pole-pairs of described external rotor permanent magnet body and the number of pole-pairs sum of described internal rotor permanent-magnetic body.
Described rotor mechanism comprises external rotor and internal rotor, and described stator mechanism is embedded in described external rotor, is separated by air gap; Described internal rotor is embedded in described stator mechanism, is separated by air gap; Wherein, described external rotor is provided with the external rotor external rotor permanent magnet body opposite with adjacent pole unshakable in one's determination, and described internal rotor is provided with the internal rotor internal rotor permanent-magnetic body opposite with adjacent pole unshakable in one's determination; Described adjustable magnetic mechanism unshakable in one's determination comprises several along the adjustable magnetics piece unshakable in one's determination that described supporting mechanism circumferentially distributes, and per two adjacent described adjustable magnetic interblocks unshakable in one's determination have air groove and are placed in armature winding in the described air groove; The number of pole-pairs of described armature winding equates with the number of pole-pairs of described internal rotor permanent-magnetic body.External rotor, internal rotor and stator mechanism adopt above-mentioned design can realize being positioned at the stator mechanism of external rotor and internal rotor centre as the generating stator, the effect of adjustable magnetic has not only been played by described stator mechanism, and played the effect of generating, need not newly-increased inner stator as the generating stator, avoid the wind-driven generator parts redundant, reduced the cost of equipment.
External rotor, internal rotor and stator mechanism adopt air gap to be implemented in contactless transmission of torque.
Described adjustable magnetic piece unshakable in one's determination is evenly to distribute, and all is mounted with described armature winding in each described air groove; It is more stable that the electric current that makes generating export is compared the electric current that armature winding sent of non-homogeneous arrangement, improved the usability of electric current.
Air blade is directly installed on the generator external rotor, has saved extra mechanical transmission.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (8)
1. an integrated magnetic gear external rotor wind driven electric generator comprises
Stator mechanism, described stator mechanism comprises arbor, the supporting mechanism that is connected with described arbor and be located at adjustable magnetic mechanism unshakable in one's determination on the described supporting mechanism;
Gear mechanism is connected with described arbor;
Rotor mechanism is by described gear mechanism and described coaxial connection of stator mechanism;
It is characterized in that: described rotor mechanism comprises external rotor and internal rotor, and described stator mechanism is embedded in described external rotor, is separated by air gap; Described internal rotor is embedded in described stator mechanism, is separated by air gap; Wherein, described external rotor is provided with the external rotor external rotor permanent magnet body opposite with adjacent pole unshakable in one's determination, and described internal rotor is provided with the internal rotor internal rotor permanent-magnetic body opposite with adjacent pole unshakable in one's determination; Described adjustable magnetic mechanism unshakable in one's determination comprises several along the adjustable magnetics piece unshakable in one's determination that described supporting mechanism circumferentially distributes, and per two adjacent described adjustable magnetic interblocks unshakable in one's determination have air groove and are placed in armature winding in the described air groove; The number of pole-pairs of described armature winding equates with the number of pole-pairs of described internal rotor permanent-magnetic body.
2. wind-driven generator according to claim 1 is characterized in that: described adjustable magnetic piece unshakable in one's determination all is mounted with described armature winding for evenly distributing in each described air groove.
3. wind-driven generator according to claim 2 is characterized in that: the piece number of described adjustable magnetic piece unshakable in one's determination equals the number of pole-pairs of described external rotor permanent magnet body and the number of pole-pairs sum of described internal rotor permanent-magnetic body.
4. wind-driven generator according to claim 3 is characterized in that: on the described external rotor air blade is installed.
5. wind-driven generator according to claim 4 is characterized in that: described gear mechanism outer rotor bearing mechanism and the inner rotor bearing mechanism of comprising; Described internal rotor comprises the internal rotor rotating shaft, described internal rotor rotating shaft is connected with described arbor by described inner rotor bearing mechanism, described external rotor comprises the external rotor coupling sleeve, described external rotor permanent magnet body is located on the described external rotor iron core, and described external rotor iron core is located on the described external rotor coupling sleeve, and described external rotor coupling sleeve is connected with described arbor by described outer rotor bearing mechanism.
6. wind-driven generator according to claim 5 is characterized in that: the described supporting mechanism of described stator is the stator coupling sleeve.
7. wind-driven generator according to claim 6 is characterized in that: described stator coupling sleeve adopts non-magnet material to make, and the one end is equipped with cowling.
8. according to the arbitrary described wind-driven generator of claim 1-7, it is characterized in that: described internal rotor permanent-magnetic is shown consideration in the outer circumferential face of described internal rotor iron core.
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| CN2010105961651A CN102032119A (en) | 2010-12-20 | 2010-12-20 | Wind driven generator integrating magnetic gear with outer rotor |
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| CN2010105961651A CN102032119A (en) | 2010-12-20 | 2010-12-20 | Wind driven generator integrating magnetic gear with outer rotor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324820A (en) * | 2011-08-17 | 2012-01-18 | 浙江大学 | Magnetic field modulated multi-power port permanent magnetic motor |
| CN102738983A (en) * | 2012-05-29 | 2012-10-17 | 滁州恒恩光电科技有限公司 | Birotor permanent magnet breeze generator |
| CN103206336A (en) * | 2013-04-26 | 2013-07-17 | 周耀瑜 | Horizontal shaft dual-rotor hydroelectric generation device |
| JP2013139247A (en) * | 2011-12-28 | 2013-07-18 | Eurocopter Deutschland Gmbh | Electrical powered tail rotor of helicopter |
| CN104638869A (en) * | 2015-01-30 | 2015-05-20 | 上海泉源机电有限公司 | Coreless induction generator and hydroelectric generating instant faucet |
| CN105978224A (en) * | 2016-06-30 | 2016-09-28 | 江苏金陵永磁产业研究院有限公司 | Permanent-magnet type single-air-gap composite wind-driven generator |
| CN106899194A (en) * | 2017-03-31 | 2017-06-27 | 东南大学 | Energy by ocean current integrated generating device based on Flux modulation compound machine |
| CN108054890A (en) * | 2018-02-08 | 2018-05-18 | 维尔纳（福建）电机有限公司 | Slide torque-converting motor |
| CN109802520A (en) * | 2017-11-17 | 2019-05-24 | 成功大学 | Speed governing type magnetic gear motor, its purposes and the electric carrier containing it |
| CN111071903A (en) * | 2020-01-06 | 2020-04-28 | 菱王电梯股份有限公司 | Magnetic gear speed-regulating permanent-magnet synchronous traction machine |
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| GB2417140A (en) * | 2004-08-09 | 2006-02-15 | Alstom | Superconducting machine with stator between two superconducting rotors |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324820A (en) * | 2011-08-17 | 2012-01-18 | 浙江大学 | Magnetic field modulated multi-power port permanent magnetic motor |
| JP2013139247A (en) * | 2011-12-28 | 2013-07-18 | Eurocopter Deutschland Gmbh | Electrical powered tail rotor of helicopter |
| CN102738983A (en) * | 2012-05-29 | 2012-10-17 | 滁州恒恩光电科技有限公司 | Birotor permanent magnet breeze generator |
| CN103206336A (en) * | 2013-04-26 | 2013-07-17 | 周耀瑜 | Horizontal shaft dual-rotor hydroelectric generation device |
| CN104638869A (en) * | 2015-01-30 | 2015-05-20 | 上海泉源机电有限公司 | Coreless induction generator and hydroelectric generating instant faucet |
| CN105978224A (en) * | 2016-06-30 | 2016-09-28 | 江苏金陵永磁产业研究院有限公司 | Permanent-magnet type single-air-gap composite wind-driven generator |
| CN106899194A (en) * | 2017-03-31 | 2017-06-27 | 东南大学 | Energy by ocean current integrated generating device based on Flux modulation compound machine |
| CN109802520A (en) * | 2017-11-17 | 2019-05-24 | 成功大学 | Speed governing type magnetic gear motor, its purposes and the electric carrier containing it |
| CN108054890A (en) * | 2018-02-08 | 2018-05-18 | 维尔纳（福建）电机有限公司 | Slide torque-converting motor |
| CN108054890B (en) * | 2018-02-08 | 2023-10-24 | 维尔纳集电电子科技(福建)有限公司 | Sliding torque-changing motor |
| CN111071903A (en) * | 2020-01-06 | 2020-04-28 | 菱王电梯股份有限公司 | Magnetic gear speed-regulating permanent-magnet synchronous traction machine |
| CN111071903B (en) * | 2020-01-06 | 2024-02-09 | 菱王电梯有限公司 | Magnetic gear speed-regulating permanent magnet synchronous traction machine |
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Application publication date: 20110427 |