CN211321174U - Double-impeller wind power rare earth permanent magnet generator - Google Patents
Double-impeller wind power rare earth permanent magnet generator Download PDFInfo
- Publication number
- CN211321174U CN211321174U CN201920597944.XU CN201920597944U CN211321174U CN 211321174 U CN211321174 U CN 211321174U CN 201920597944 U CN201920597944 U CN 201920597944U CN 211321174 U CN211321174 U CN 211321174U
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- permanent magnet
- wind
- generator
- rotor
- outer rotor
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Abstract
The utility model provides a two fan blade wind-force tombarthite permanent magnet generator, including fan blade and permanent magnet generator, the permanent magnet generator outside sets up two fan blades, installs at the permanent magnet generator both ends in tandem, and the inner rotor adopts the winding coil structure, and the outer rotor adopts the permanent magnet structure. The wind impeller is driven by wind power to drive the permanent magnet generator to generate electricity. The utility model has the advantages of continuously generating electricity and having high efficiency under the low-speed wind power state.
Description
Technical Field
The invention relates to the technical field of wind power generation. In particular to a double-impeller wind power rare earth permanent magnet generator.
Background
The permanent magnet generator is a device for converting mechanical energy into electric energy, the development of a conventional permanent magnet generator and a direct-drive wind generator starts at the end of 20 th century, compared with a common generator, the direct-drive wind generator changes a heavy speed-increasing gearbox mode, a generator shaft is directly connected to a middle wheel shaft, a rotor is changed along with the size of wind speed, and further the change of alternating current frequency is realized. As an important new energy power generation mode for wind power generation, with the increase of the proportion of wind power generation in power supply of a power grid, domestic and foreign large-scale horizontal-axis wind power generator sets comprise double-fed machines and permanent magnet direct-driven generators. The permanent magnet direct-drive generator does not comprise a speed-increasing gear box, the rated rotating speed of the motor is reduced by increasing the number of the magnetic pole pairs, and the wind wheel absorbs wind energy and converts the wind energy into mechanical energy which is transmitted to the generator through main rotation to generate power. The existing permanent magnet generator mostly adopts a structure of a stator and a rotor, and under the condition of low wind speed, the mechanical energy of the rotor driven by an impeller is small, the rotating speed of the rotor cannot be improved, the power generation function cannot be realized, and the high-efficiency operation of the generator is difficult to ensure; even if the output voltage of the motor can be ensured, the wind driven generator has the problems of high manufacturing cost and heavy weight; the stator winding of the permanent magnet generator can not fully exert the performance of the permanent magnet; meanwhile, the wind power generation device is generally established with a region with extensive and sparse population, when a certain position of a stator or a rotor is damaged in the running process of the wind power permanent magnet generator, the whole generator can not be used, so that great waste is caused, and the problem of high damage and maintenance cost exists.
Disclosure of Invention
The invention relates to a double-impeller direct-drive wind power permanent magnet generator, which comprises fan blades and a permanent magnet generator, and is characterized in that: two wind impellers are arranged outside the permanent magnet generator and are arranged at two ends of the permanent magnet generator in tandem, the inner rotor adopts a winding coil structure, and the outer rotor adopts a permanent magnet structure.
The inner rotor is connected with a front wind impeller, the outer rotor is connected with a rear wind impeller, the inner rotor and the outer rotor coaxially rotate under the driving of wind power, and the inner rotor and the outer rotor are fixed by bolts.
The outer rotor shaft is a cylindrical structure made of non-ferromagnetic materials, and permanent magnet strips are arranged on the outer rotor. The magnetic poles on the rotor are arranged along the circumference.
The magnetic strip of the outer rotor is further magnetic poles made of neodymium iron boron permanent magnet materials, and the magnetic poles are arranged along the circumference.
The further inner rotor can also be connected with a carbon brush, a slip ring and an outgoing line.
A stator is designed in the radial direction of the rotor and consists of windings, the stator is formed by laminating silicon steel sheets with high magnetic conductivity, a groove is formed in the stator, and a coil is arranged in the groove of the stator.
When the rotor is driven by the rotating shaft to rotate, the stator winding cuts magnetic lines of force at the same time, and all the stator windings generate currents with the same intensity.
The permanent magnet generator further comprises a carbon brush, an outgoing line, a collecting ring and a base.
The invention has the following beneficial effects:
(1) the wind power generation device is suitable for regions with low wind speed, and can realize the power generation function under the condition of low wind speed.
(2) The structure of using the inner and outer rotors saves space and is not complex.
Drawings
FIG. 1 is a reference number description of a double-impeller wind power rare earth permanent magnet generator of the invention: the double-impeller direct-drive wind power permanent magnet generator comprises a double-impeller direct-drive wind power generator 1, fan blades 2, fan blades 3, an inner rotor 4, an outer rotor 5, a machine base 6, an inner rotor coil 7, an outer rotor permanent magnet 8, a rotor shaft 9, a collecting ring 10, a stator 11, a stator winding 12, a carbon brush 13, an outgoing line 14, a bolt 15 and an outer rotor shaft 16
Detailed Description
The invention relates to a double-impeller direct-drive wind power permanent magnet generator (1), which is characterized in that: the permanent magnet generator is externally provided with two wind impellers which are arranged at two ends of the permanent magnet generator in tandem, the inner rotor (4) is connected with the front wind impeller (2), the outer rotor (5) is connected with the rear wind impeller (3), the inner rotor and the outer rotor coaxially rotate under the driving of wind power, and the inner rotor and the outer rotor are fixed by bolts (15). The inner rotor adopts a winding coil (7) structure, and the outer rotor adopts a permanent magnet (8) structure.
The further rotor shaft (9) is a cylinder structure made of non-ferromagnetic material, and permanent magnet strips are arranged on the rotor. The magnetic poles on the rotor are arranged along the circumference.
The further outer rotor permanent magnet (8) is a magnetic pole made of neodymium iron boron permanent magnet materials, and the magnetic poles are arranged along the circumference.
A stator (11) is designed in the radial direction of the rotor, the stator is composed of stator windings (12), the stator is formed by laminating silicon steel sheets with high magnetic conductivity, a groove is formed in the stator, and a coil is arranged in the groove of the stator.
When the rotor is driven by the rotating shaft to rotate, the stator winding cuts magnetic lines of force at the same time, and all the stator windings generate currents with the same intensity.
The permanent magnet generator further comprises a carbon brush (13), an outgoing line (14), a collecting ring (10) and a base (6).
In a preferred embodiment, the inner rotor is bolted to the inner rotor shaft. The outer rotor is bolted to an outer rotor shaft (16).
Claims (5)
1. The utility model provides a two wind impeller wind-force tombarthite permanent magnet generator, includes fan blade and permanent magnet generator, and the permanent magnet generator outside sets up two wind impellers, installs at the permanent magnet generator both ends in tandem, and the inner rotor adopts the winding coil structure, and the outer rotor adopts permanent magnet structure, its characterized in that: the inner rotor is connected with the front wind impeller, the outer rotor is connected with the rear wind impeller, the inner rotor and the outer rotor coaxially rotate under the driving of wind power, and the inner rotor and the outer rotor are fixed by bolts.
2. The rare earth permanent magnet wind generator with double impellers as claimed in claim 1, wherein: the outer rotor shaft is a cylinder structure made of non-ferromagnetic materials, and permanent magnet strips are arranged on the outer rotor.
3. The rare earth permanent magnet wind generator with double impellers as claimed in claim 1, wherein: the magnetic strips of the outer rotor are magnetic poles made of neodymium iron boron permanent magnet materials, and the magnetic poles are arranged along the circumference.
4. The rare earth permanent magnet wind generator with double impellers as claimed in claim 1, wherein: the inner rotor is connected with the carbon brush, the slip ring and the outgoing line.
5. The rare earth permanent magnet wind generator with double impellers as claimed in claim 1, wherein: a stator is designed in the radial direction of the rotor and consists of windings, the stator is formed by laminating silicon steel sheets with high magnetic conductivity, a groove is formed in the stator, and a coil is arranged in the groove of the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920597944.XU CN211321174U (en) | 2019-04-28 | 2019-04-28 | Double-impeller wind power rare earth permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920597944.XU CN211321174U (en) | 2019-04-28 | 2019-04-28 | Double-impeller wind power rare earth permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211321174U true CN211321174U (en) | 2020-08-21 |
Family
ID=72057010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920597944.XU Expired - Fee Related CN211321174U (en) | 2019-04-28 | 2019-04-28 | Double-impeller wind power rare earth permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211321174U (en) |
-
2019
- 2019-04-28 CN CN201920597944.XU patent/CN211321174U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |