CN2865122Y - Direct-driving permanent-magnetic wind-driven generator - Google Patents
Direct-driving permanent-magnetic wind-driven generator Download PDFInfo
- Publication number
- CN2865122Y CN2865122Y CN 200620068623 CN200620068623U CN2865122Y CN 2865122 Y CN2865122 Y CN 2865122Y CN 200620068623 CN200620068623 CN 200620068623 CN 200620068623 U CN200620068623 U CN 200620068623U CN 2865122 Y CN2865122 Y CN 2865122Y
- Authority
- CN
- China
- Prior art keywords
- stator
- layer
- rotor core
- core ring
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Wind Motors (AREA)
Abstract
A directly driving permanent magnetic wind power generator is provided, comprising a multiple-layer stator and a multi-layer rotator; wherein, the outer stator (1) and inner stator (2) on each stator layer are on both sides of a stator support ring (10), and the support rings for the multi-layer stator are fixed to a stator fixing bracket (6); the permanent magnet (4) on outer wall and the permanent magnet (5) on inner wall of rotor core ring on each rotor layer are on both sides of the rotor core ring (3), and the rotor core rings are fixed to a rotator fixing bracket (7), respectively; the center of the rotator fixing bracket is fixed to a spindle (8), one end of which is connected to the stator fixing bracket (6) via a bearing (9); the permanent magnet (4) on outer wall of rotor core ring and the permanent magnet (5) on inner wall of rotor core ring, which are reversed in polarity, are arranged on inner and outer walls of the rotor core ring (3) on each rotor layer in a staggered manner. The motor doesn't need any gearbox, and improves voltage output and system efficiency, and save total cost of the system.
Description
Technical field
The utility model relates to a kind of high-capacity direct and connects driving multi-layer stator/rotor permanent magnet wind power generator, belongs to the technical field that generator is made.
Background technology
Wind energy is as a kind of regenerative resource of cleaning, and along with technology is progressively ripe, operating cost from now on can be lower than water power and thermoelectricity, and development prospect is boundless.Wind-driven generator is a vital core link in the wind energy development.The rotating speed of large-scale wind turbine is low to moderate tens to be changeed even tens commentaries on classics, so have to by means of the raising speed gear box, could send the alternating current of power frequency by the generator of ordinary rotational speed.Because blower fan is installed in tens meters, open-air high-altitude, stand heat severe winter, the environmental condition harshness, raising speed gear box operating mode is harsh, cost is high, the maintaining workload is big, be overload and the higher parts of premature damage rate in the present MW grade wind driven generator unit, become the bottleneck of restriction wind power generation economy.For this reason, the multipole wind-driven generator of various countries aimings non-gear box, in addition developmental research, the multipole wind-driven generator of non-gear box becomes the first-selected up-to-date sophisticated technology of current power field.
The low cruise characteristic of wind-driven generator requires generating set to take multipole special construction, and utmost point group need be launched at the circumference of generator, and the generator diameter increases.And the desk permanent-magnet generator is limited owing to stator space, and the stator utilance is low, has limited its application in the low speed large-scale wind driven generator.Therefore, also need to study new electric machine structure to obtain higher output voltage for large-scale direct-driving type wind power generation machine, lower output current improves generator operation efficient.
Summary of the invention
Technical problem: technical problem to be solved in the utility model provides that a kind of stator space is big, low speed high output voltage, low output current, the higher driving permanent-magnetic wind driven generator of high-capacity direct of efficient.
Technical scheme: traditional generator is because diameter is less, and the motor internal space is little, and the motor space availability ratio is not high, thereby has limited the motor output voltage.In order when slowly running, to obtain higher output voltage, the present invention has adopted special electric machine structure, promptly according to the practical application needs multi-layer stator and rotor are set in bigger generator frame space, stator and common electric machine stator structure are similar, the stator winding series-fed.
High-capacity direct-driving multi-layer stator/rotor permanent magnet wind-driven generator of the present utility model is made of multi-layer stator and corresponding multi-layer rotor, wherein, the layer external stator of every layer of stator and layer internal stator lay respectively at the both sides of stator support ring, and the multi-layer stator support ring is separately fixed on the stator fixed support; The rotor core ring outer wall permanent magnet of every layer of rotor and rotor core ring inwall permanent magnet lay respectively at the both sides of rotor core ring, and the rotor core ring is fixed on the rotor fixed support; The support bracket fastened center fixation of rotor is in rotating shaft, one end of rotating shaft is connected with the stator fixed support by bearing, and rotor core ring outer wall permanent magnet that polarity is different and rotor core ring inwall permanent magnet are staggered and are distributed on the inside and outside wall of each layer rotor core ring.Each layer stator armature winding is connected mutually, and promptly from the outermost layer stator, the every phase armature winding of outer stator is connected in series mutually with the corresponding head and the tail of armature winding mutually of internal layer adjacent stator.By pasting permanent magnet on rotor core ring inside and outside wall, the different and formed magnetic field of staggered permanent magnet of polarity forms series circuit by adjacent layer external stator, layer internal stator and rotor core ring on the inside and outside wall.Described rotor core ring outer wall permanent magnet and rotor core ring inwall permanent magnet adopt Nd-Fe-Bo permanent magnet material to make.
Each layer stator is fixed on the stator fixed support of electric motor end cap one side, and rotor is fixed on the rotor fixed support of electric motor end cap opposite side.Suppose that motor outermost layer stator is the ground floor stator, then the odd-level stator tooth is inside, and is similar to traditional external stator, abbreviates a layer external stator as; The even level stator tooth is outside, and is similar to the conventional motors internal stator, abbreviates a layer internal stator as.Every layer of rotor by the rotor core ring, be attached to the rotor core ring outer wall permanent magnet on the rotor core ring outer wall and the rotor core ring inwall permanent magnet that is attached on the rotor core ring inwall constitutes.The rotor core ring by the rotor fixed support fixing and be connected with the rotor fixed support as a whole, and at rotor core ring inside and outside wall both sides stickup polarity different and staggered rotor core ring outer wall permanent magnet and rotor core ring inwall permanent magnet.
Suppose that N is a natural number, then the pairing stator of N layer rotor is respectively 2N-1 layer stator (i.e. layer external stator and 2N layer stator (i.e. layer internal stator).N layer rotor is internal rotor for 2N-1 layer stator, then is external rotor for 2N layer stator.Each layer of event rotor can be considered the adjacent layer stator, i.e. a layer external stator and the shared rotor of layer internal stator.Layer external stator and layer internal stator respectively with the rotor core ring outer wall permanent magnet and the rotor core ring inwall permanent magnet correspondence of equivalent layer.
By pasting permanent magnet on rotor core ring inside and outside wall, the different and formed magnetic field of staggered permanent magnet of polarity forms series circuit by adjacent layer external stator, layer internal stator and rotor core ring etc. on the inside and outside wall, as shown in Figure 2.
Beneficial effect: because each layer stator armature windings in series connects, can obtain than the higher output voltage of common single stator rotor generator, thereby can reduce output current, reduce the armature winding footpath, reduce the loss of electric machine, improve electric efficiency.In addition,, can reduce the motor stator leakage reactance, improve air gap flux density, thereby improve the power density of motor because the motor stator groove depth reduces.
Compare with common single stator rotor motor, owing to adopt this special machines structure, under the same diameter situation, motor can obtain bigger output voltage; And under the situation of identical output voltage, can dwindle motor diameter by each layer stator armature windings in series, thus can reduce the weight and volume of unit, improve pneumatic force characteristic, obtain more wind energy.
Because generator has been realized direct driving generating, has removed the raising speed gear box that price is high and efficient is lower from, the motor stator space is big, and the utilance height can obtain bigger output voltage when low speed.Have the mechanical speed change of need not, low-speed high-efficiency, rational in infrastructure, the space availability ratio height, low cost of manufacture, motor component more tend to the characteristics of common electric machine.
Description of drawings
Fig. 1 is the utility model high-capacity direct-driving type permanent-magnetic wind driven generator generalized section;
Fig. 2 is the utility model generator internal layer stator rotor magnetic circuit schematic diagram;
Have among the above figure: layer external stator 1, layer internal stator 2, rotor core ring 3, rotor core ring outer wall permanent magnet 4, rotor core ring inwall permanent magnet 5, stator fixed support 6, rotor fixed support 7, rotating shaft 8, bearing 9, stator support ring 10.
Embodiment:
The utility model has adopted special electric machine structure, promptly according to the practical application needs multi-layer stator and rotor is set in bigger generator frame space, and the stator structure of stator and common external rotor inner rotor motor is similar.Each layer stator is fixed on the stator fixed support 6 of electric motor end cap one side, and rotor is fixed on the rotor fixed support 7 of electric motor end cap opposite side.Suppose that motor outermost layer stator is the ground floor stator, then the odd-level stator tooth is inside, and is similar to traditional external stator, abbreviates layer external stator 1 as; The even level stator tooth is outside, and is similar to the conventional motors internal stator, abbreviates layer internal stator 2 as.Every layer of rotor is by rotor core ring 3 and be attached to the rotor core ring outer wall permanent magnet 4 on rotor core ring 3 outer walls and the rotor core ring inwall permanent magnet 5 that is attached on rotor core ring 3 inwalls constitutes.
Suppose that N is a natural number, then the pairing stator of N layer rotor is respectively 2N-1 layer stator (i.e. layer external stator 1) and 2N layer stator (i.e. layer internal stator 2).N layer rotor is internal rotor for 2N-1 layer stator, then is external rotor for 2N layer stator.So each layer rotor can be considered the adjacent layer stator, i.e. the common rotor of layer external stator 1 and layer internal stator 2.Layer external stator 1 and layer internal stator 2 respectively with the rotor core ring outer wall permanent magnet 4 and rotor core ring inwall permanent magnet 5 correspondences of equivalent layer.
By pasting permanent magnet on rotor core ring 3 inside and outside walls, the different and formed magnetic field of staggered permanent magnet of polarity forms series circuit by adjacent layer external stator 1, layer internal stator 2 and rotor core ring 3 etc. on the inside and outside wall, as shown in Figure 2.This magnetic flux path is: rotor core ring outer wall permanent magnet 4, layer external stator 1, adjacent rotors ring unshakable in one's determination outer wall permanent magnet 4, rotor core ring 3, rotor core ring inwall permanent magnet 5, layer internal stator 2, adjacent rotors ring unshakable in one's determination inwall permanent magnet 5, rotor core ring 3, get back to rotor core ring outer wall permanent magnet 4 at last.
In addition, consider, select to have the material of the Nd-Fe-Bo permanent magnet material of higher HCJ as electric machine rotor iron core ring outer wall permanent magnet 4 and rotor core ring inwall permanent magnet 5 from improving motor gas-gap magnetic thermal stability close and magnet steel.
Each layer stator armature windings in series connects, and promptly from the outermost layer stator, the every phase armature winding of outer stator is connected in series mutually with the corresponding head and the tail of armature winding mutually of internal layer adjacent stator, thereby can obtain the output voltage higher than conventional electric generators.At last, use a total power frequency converter that the wind-powered electricity generation of frequency change is transformed to the power frequency electricity and send into electrical network.
Claims (4)
1. direct-driving permanent magnetic wind-driven generator, it is characterized in that this generator is made of multi-layer stator and corresponding multi-layer rotor, wherein, the layer external stator (1) of every layer of stator and layer internal stator (2) lay respectively at the both sides of stator support ring (10), and multi-layer stator support ring (10) is separately fixed on the stator fixed support (6); The rotor core ring outer wall permanent magnet (4) of every layer of rotor and rotor core ring inwall permanent magnet (5) lay respectively at the both sides of rotor core ring (3), and rotor core ring (3) is fixed on the rotor fixed support (7); The center fixation of rotor fixed support (7) is in rotating shaft (8), one end of rotating shaft (8) is connected with stator fixed support (6) by bearing (9), and rotor core ring outer wall permanent magnet (4) that polarity is different and rotor core ring inwall permanent magnet (5) are staggered and are distributed on the inside and outside wall of each layer rotor core ring (3).
2. direct-driving permanent magnetic wind-driven generator according to claim 1, it is characterized in that each layer stator armature winding connects mutually, promptly from the outermost layer stator, the every phase armature winding of outer stator is connected in series mutually with the corresponding head and the tail of armature winding mutually of internal layer adjacent stator.
3. direct-driving permanent magnetic wind-driven generator according to claim 1, it is characterized in that by on rotor core ring (3) inside and outside wall, pasting permanent magnet the different and formed magnetic field of staggered permanent magnet of polarity is by adjacent layer external stator (1), layer internal stator (2) and rotor core ring (3) formation series circuit on the inside and outside wall.
4. direct-driving permanent magnetic wind-driven generator according to claim 1 is characterized in that described rotor core ring outer wall permanent magnet (4) and rotor core ring inwall permanent magnet (5) adopt Nd-Fe-Bo permanent magnet material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068623 CN2865122Y (en) | 2006-01-20 | 2006-01-20 | Direct-driving permanent-magnetic wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068623 CN2865122Y (en) | 2006-01-20 | 2006-01-20 | Direct-driving permanent-magnetic wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2865122Y true CN2865122Y (en) | 2007-01-31 |
Family
ID=37677574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068623 Expired - Fee Related CN2865122Y (en) | 2006-01-20 | 2006-01-20 | Direct-driving permanent-magnetic wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2865122Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350716C (en) * | 2006-01-17 | 2007-11-21 | 东南大学 | High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator |
| CN102386732A (en) * | 2011-12-02 | 2012-03-21 | 山东理工大学 | Nested low-speed outer rotor permanent magnet motor |
| CN105978267A (en) * | 2015-11-11 | 2016-09-28 | 永康市法拉迪电机有限公司 | Drive device of efficient body slimmer |
| CN109617351A (en) * | 2019-01-08 | 2019-04-12 | 安徽白氏电机有限公司 | The compound outer rotor generator of disk target formula |
| CN109638989A (en) * | 2019-01-08 | 2019-04-16 | 安徽白氏电机有限公司 | Brush-less permanent magnetic disk target formula compound power-generating machine stator |
| CN109687613A (en) * | 2019-01-08 | 2019-04-26 | 安徽白氏电机有限公司 | Brush-less permanent magnetic disk target formula compound power-generating machine rotor |
| CN109698566A (en) * | 2019-01-08 | 2019-04-30 | 安徽白氏电机有限公司 | The compound internal rotor generator of disk target formula |
| CN111682674A (en) * | 2020-06-17 | 2020-09-18 | 张俊华 | Three-in-one multifunctional motor |
-
2006
- 2006-01-20 CN CN 200620068623 patent/CN2865122Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350716C (en) * | 2006-01-17 | 2007-11-21 | 东南大学 | High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator |
| CN102386732A (en) * | 2011-12-02 | 2012-03-21 | 山东理工大学 | Nested low-speed outer rotor permanent magnet motor |
| CN105978267A (en) * | 2015-11-11 | 2016-09-28 | 永康市法拉迪电机有限公司 | Drive device of efficient body slimmer |
| CN109617351A (en) * | 2019-01-08 | 2019-04-12 | 安徽白氏电机有限公司 | The compound outer rotor generator of disk target formula |
| CN109638989A (en) * | 2019-01-08 | 2019-04-16 | 安徽白氏电机有限公司 | Brush-less permanent magnetic disk target formula compound power-generating machine stator |
| CN109687613A (en) * | 2019-01-08 | 2019-04-26 | 安徽白氏电机有限公司 | Brush-less permanent magnetic disk target formula compound power-generating machine rotor |
| CN109698566A (en) * | 2019-01-08 | 2019-04-30 | 安徽白氏电机有限公司 | The compound internal rotor generator of disk target formula |
| CN111682674A (en) * | 2020-06-17 | 2020-09-18 | 张俊华 | Three-in-one multifunctional motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104201848B (en) | A kind of double-stator permanent magnet vernier wind-driven generator | |
| CN2865122Y (en) | Direct-driving permanent-magnetic wind-driven generator | |
| CN101764491B (en) | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof | |
| CN101917101A (en) | Double-stator direct-drive permanent magnet wind powered generator | |
| CN201786562U (en) | Dual-stator direct drive permanent magnet wind-driven generator | |
| CN101017998A (en) | Directly driving mixed excitation dual stator wind power dynamotor | |
| CN202524258U (en) | Variable power input constant frequency power generation system using birotor motor | |
| CN101242157A (en) | A cascaded speed shift frequency constant wind power generation system | |
| CN103269140A (en) | Birotor permanent magnet motor applied to wind power generation | |
| CN102710200B (en) | Directly-drive wind power generation system composed of high temperature superconductive excitation magnetic flux switchover motor | |
| CN201226504Y (en) | Variable-speed constant-frequency wind power generation system based on dual rotors generator | |
| CN102141007A (en) | Direct drive switch magnetic resistance wind driven generator system with concentric type double-stator structure | |
| CN100350716C (en) | High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator | |
| CN202435219U (en) | Brushless double-fed motor | |
| CN102545501A (en) | Axial dual-stator brushless double-fed motor | |
| CN202183711U (en) | Large double-rotor direct driving permanent magnet wind driven generator and generator set formed by same | |
| CN104158377B (en) | A kind of stormy waves switch reluctance generator system being applied to offshore platform | |
| CN202435218U (en) | Axial brushless doubly-fed motor | |
| CN110748458A (en) | Road magnetic suspension wind driven generator and power generation device | |
| CN102122869A (en) | Concentric double-stator structured direct-drive cage type induction generator system | |
| CN202145609U (en) | Double-bearing supported large-scale directly-driven double-stator switch magnetic resistance wind driven generator | |
| CN112003437B (en) | Composite structure wind driven generator and power generation system | |
| CN212543616U (en) | Double-speed motor with fault-tolerant function | |
| CN202094774U (en) | Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure | |
| CN201953572U (en) | Direct-driven switched reluctance wind power generator system with concentric two-stator structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20100220 |