CN208184892U - A kind of low wind speed vertical axis wind power generator - Google Patents
A kind of low wind speed vertical axis wind power generator Download PDFInfo
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- CN208184892U CN208184892U CN201820503761.2U CN201820503761U CN208184892U CN 208184892 U CN208184892 U CN 208184892U CN 201820503761 U CN201820503761 U CN 201820503761U CN 208184892 U CN208184892 U CN 208184892U
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- 238000004804 winding Methods 0.000 claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 230000005284 excitation Effects 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model relates to a kind of low wind speed vertical axis wind power generators, belong to wind-powered electricity generation field.The wind-driven generator includes: stator, rotor, electromagnetic system, shell, upper end bearing, bottom end bearing, support bracket, shaft, drive system of collecting folk songs, electromagnetic control system.The stator includes stator core and three-phase windings, is fixed with shell；The rotor includes rotor core, permanent magnet, is fixed positioned at the radially inner side of stator, and with shaft；The electromagnetic system includes permanent magnet and electromagnet, and the two is axial staggered relatively up and down；The drive system of collecting folk songs includes horizontal support, blade, and horizontal support is fixed with shaft.The utility model structure is simple, control is easy, convenient for installation and maintenance, and wind energy utilization is high, it can be achieved that low wind speed starting and high-power output.
Description
Technical field
The utility model relates to a kind of wind-driven generator, especially a kind of low wind speed vertical axis wind power generator belongs to wind
Electrical domain.
Background technique
High-power wind-driven generator is using horizontal axis wind-driven generator as main product at present.But horizontal axis wind-driven generator is deposited
Need to yaw to wind, wind energy utilization is low, the complicated difficult, inherent shortcomings such as installation is constant, at high cost of control, influence its health
Development.
Vertical axis aerogenerator can overcome drawbacks described above, it is not necessarily to wind, control letter higher with wind energy utilization
The advantages such as list, simple installation are applied in middle low power grade vertical axis aerogenerator.
But existing vertical axis aerogenerator power grade is not high, the magnetic suspension vertical shaft wind-power electricity generation that newly-developed gets up
Structure is complicated for machine, and control difficulty is big, and area of collecting folk songs is small, the utilization of wind energy is limited, so that generator is heavy, power is small, cost
It is high.
Utility model content
The main purpose of the utility model is that: it is in view of the deficiencies in the prior art or insufficient, a kind of structure is provided
Simply, control simplicity, high-efficient high-power low wind speed vertical axis wind power generator.
In order to reach the goals above, a kind of low wind speed vertical axis wind power generator of the utility model, comprising: stator, rotor,
Electromagnetic system, shell, upper end bearing, bottom end bearing, shaft, support bracket, drive system of collecting folk songs, electromagnetic control system.
The stator includes stator core and three-phase stator winding, is fixedly mounted on the housing；The rotor is interior
Rotor, including rotor core, permanent magnet are fixed positioned at the radially inner side of the stator, and with the shaft；The stator and institute
Stating between rotor has fixed working gas gap.
The electromagnetic system includes permanent magnet, electromagnet, and the two is axial staggered relatively up and down, there is fixed work between the two
Air gap；The permanent magnet is desk permanent-magnet iron, is fixed with the shaft；The electromagnet is made of winding and disc type iron core, institute
Stating winding is DC excitation winding, and the disc type iron core is fixed with the support bracket；The bottom of the support bracket and shell
It is fixed；The shaft is located at the top of the support bracket, and the bottom end of shaft is kept in contact with the support bracket.
The top of the upper end bearing and shell is fixed；The bottom end bearing is located at the lower end of the shaft, holds with described
Weight bracket is fixed；The upper end bearing, bottom end bearing cover in the outside of the shaft, and between shaft holding radial direction
Gap；
The drive system of collecting folk songs includes that the first system and second of collecting folk songs is collected folk songs system；Described first collect folk songs system include three
Group and three groups of components above, the even circumferential along the shaft are distributed, and every group of component includes 1 the first blade, 1 the first transverse direction
Bracket, one end and the shaft of first horizontal support are fixed, and the other end is fixed with first blade；Described second adopts
Wind system is located at the top of the shaft, including three groups and three groups of components above, and the even circumferential along the shaft is distributed, and every group
Component includes 1 the second blade, 1 the second horizontal support, and one end and the shaft of second horizontal support are fixed, another
End is fixed with the second blade.
The electromagnetic control system includes air velocity transducer, weighing sensor, current transformer；The weighing sensor and shell
Bottom is fixed, and is located at the underface of the shaft；The current transformer is DC/DC converter, is connected with the electromagnet winding.
The stator, electromagnet, shell, upper end bearing, bottom end bearing, support bracket, electromagnetic control system constitute hair
The stationary part of motor, rotor, permanent magnet, shaft, drive system of collecting folk songs constitute the rotating part of generator.
The beneficial effects of the utility model are:
1) it collects folk songs drive system because there are two sets or cover more, while electromagnetic system makes entire rotating part axis at runtime
Upward resultant force can be zero, it can be achieved that the starting of low wind speed, so that wind energy utilization is higher, realizes high-power output.
2) pass through the exciting current size of regulating magnet, control its direction, to change electromagnetic force size and Orientation, thus
Flexible modulation damping due to rotation, it can be ensured that system safe and stable operation realizes system quickly gradual braking.
3) control is simple, installation, easy maintenance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the low wind speed vertical axis wind power generator of the utility model.
Fig. 2 is the electromagnetic system structure signal and mechanical analysis signal of the low wind speed vertical axis wind power generator of the utility model
Figure.
Fig. 3 is the electromagnetic control system structural block diagram of the low wind speed vertical axis wind power generator of the utility model.
Figure label: 1- stator, 2- rotor, 3- permanent magnet, 4- electromagnet, 5- weighing sensor, 6- shell, 7- upper shaft
Hold, 8- bottom end bearing, 9- support bracket, 10- shaft, 11- first collects folk songs system, and 12- second collects folk songs system, 41- electromagnet around
Group, 42- electromagnet core, 51- current transformer, 52- electromagnet winding initial excitation given value of current value computing module, 53- control are calculated
Method adjuster, the first blade of 111-, the first horizontal support of 112-, the second blade of 121-, the second horizontal support of 122-.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of low wind speed vertical axis wind power generator of the utility model includes: stator 1, rotor 2, electromagnetic system
System, shell 6, upper end bearing 7, bottom end bearing 8, shaft 10, support bracket 9, drive system of collecting folk songs, electromagnetic control system.
As shown in Figure 1, stator 1 includes stator core and three-phase stator winding, it is fixedly mounted on shell 6, stator three-phase
The generator-side converter wear of winding connection generator；Rotor 2 is internal rotor, including rotor core, permanent magnet, positioned at the radial direction of stator 1
Inside, and it is fixed with shaft 10；There is fixed working gas gap between stator 1 and rotor 2.Stator 1 and rotor 2 constitute vertical radial magnetic
Field magneto alternator.
As shown in Figure 1 and Figure 2, the electromagnetic system includes permanent magnet 3, electromagnet 4, and the two is axial staggered relatively up and down, and
There is fixed working gas gap；Permanent magnet 3 is desk permanent-magnet iron, fixed with shaft 10；Electromagnet 4 is by winding 41 and disc type iron core 42
Composition, winding 41 are DC excitation winding, and disc type iron core 42 and support bracket 9 are fixed；The bottom of support bracket 9 and shell 6 is solid
It is fixed；Shaft 10 is located at the top of support bracket 9, and bottom end and the support bracket 9 of shaft 10 are kept in contact.
As shown in Figure 1, upper end bearing 7 and the top of shell 6 are fixed；Bottom end bearing 8 is located at the lower end of shaft 10, with load-bearing
Bracket 9 is fixed；Upper end bearing 7, bottom end bearing 8 cover in the outside of shaft 10, and keep radial clearance with shaft 10.
As shown in Figure 1, the drive system of collecting folk songs includes that the first system 11 and second of collecting folk songs is collected folk songs system 12；First collects folk songs
System 11 includes three groups and three groups of components above, and the even circumferential along shaft 10 is distributed, and every group of component includes 1 the first blade
111,1 the first horizontal support 112, wherein one end of the first horizontal support 112 and shaft 10 are fixed, the other end and the first leaf
Piece 111 is fixed；Second system 12 of collecting folk songs is located at the top of shaft 10, including three groups and three groups of components above, along the circle of shaft 10
Week is uniformly distributed, and every group of component includes 1 the second blade, 121,1 the second horizontal supports 122, wherein the second horizontal support 122
One end and shaft 10 it is fixed, the other end and the fixation of the second blade 121.As special case, if generator power is smaller, drive of collecting folk songs
Dynamic system can be only with a system of collecting folk songs；If generator power is very big, drive system of collecting folk songs can using several the
One collects folk songs system.
As shown in figure 3, the electromagnetic control system includes air velocity transducer, weighing sensor 5, current transformer 51, electromagnet
Winding initial excitation given value of current value computing module 52, control algolithm adjuster 53 (such as PID regulator)；Weighing sensor 5 with
The bottom of shell 6 is fixed, and is located at the underface of shaft 10, for measuring the resultant force of gig in the axial direction；Current transformer 51 is
DC/DC converter, output end are connected with electromagnet winding 41.Electromagnet winding initial excitation given value of current value computing module 52
Input terminal connection weighing sensor 5 output, the output end of computing module 52 connects current transformer 51；The axial resultant force of gig
Setting value FrefAnd the difference of the output of weighing sensor 5 is input to control algolithm adjuster 53, control algolithm adjuster 53 it is defeated
Outlet connects current transformer 51.
As shown in Figure 1, stator 1, electromagnet 4, shell 6, upper end bearing 7, bottom end bearing 8, support bracket 9, Electromagnetic Control
System constitutes the stationary part of generator, and rotor 2, permanent magnet 3, shaft 10, drive system of collecting folk songs constitute the rotation of generator
Transfer part point, the rotating part is referred to as gig.
A kind of above-mentioned low wind speed vertical axis wind power generator, specific step is as follows for control method:
1) as shown in figure 3, being passed when air velocity transducer measures wind speed within the scope of incision wind speed to rated wind speed according to weighing
Gig gravity mg under the shutdown status that sensor 5 measures obtains electricity through electromagnet winding initial excitation current calculation module 52
The initial excitation given value of current value i of magnet winding 410 *, by this initial excitation given value of current value i0 *Electromagnetism is obtained through current transformer 51
The initial excitation electric current i of iron winding 410, when electromagnet winding 41 is passed through initial excitation electric current i0Afterwards, make electromagnet 4 generate with forever
The identical pole polarity of magnet 3, for example, if permanent magnet 3 is the pole N, electromagnet 4 is made to generate the pole N；If permanent magnet 3
For the pole S, then electromagnet 4 is made to generate the pole S；Then gig is by the electromagnetic repulsion force f upward by onee, weighing sensor 5 at this time
The value measured is exactly the axial resultant force F acted on gig, and has F=mg-fe。
Wherein, the initial excitation given value of current value i of electromagnet winding initial excitation current calculation module 520 *Calculation method
Are as follows:
As shown in Fig. 2, the electromagnetic repulsion force f that electromagnet 4 generateseAre as follows:
In formula, μ0For space permeability, N is the number of turns of electromagnet winding 41, and S is that the magnetic pole surfaces of electromagnet core 42 have
Imitate area, working gas gap length of the δ between electromagnet 4 and permanent magnet 3.
As shown in Figure 2, electromagnetic repulsion force feDirection it is contrary with the gravity mg of gig.If electromagnetism suction and repulsion is equal to
Gig gravity, then the resultant force of gig in the axial direction is zero, to just not have frictional force in rotary course, is not also just revolved
Turn damping, low wind speed starting can be realized.
It enables:
fe=mg (2)
Formula (1) is substituted into formula (2), i can be calculated0 *Are as follows:
2) by the setting value F of axial resultant force FrefAnd the difference for the axial resultant force F that weighing sensor 5 measures in real time is calculated through control
Method adjuster 53 (such as PID regulator) obtains the exciting current given value i of electromagnet winding 41*, by this given value i*Through unsteady flow
Device 51 obtains the exciting current i of electromagnet winding 41, and the axial resultant force F of gig is made to be equal to its setting value Fref, rotor 2 is in wind
The lower rotation of power effect, makes engine power generation；In this stage, F is enabledref=0, i.e. the exciting current i's of regulating magnet winding 41
Size, so that electromagnetic repulsion force fe=mg, then the axial resultant force F that weighing sensor 5 measures in real time is zero, it means that shaft 10
The power acted on support bracket 9 is zero, thus the frictional force between shaft 10 and support bracket 9 is zero, without damping due to rotation,
Shaft 10 is i.e. rotatable under very low velocity, realizes low wind speed starting power generation.
3) when air velocity transducer measures wind speed within the scope of rated wind speed to cut-out wind speed, according to wind speed size, change axis
To resultant force setting value Fref, to adjust the output electric current of current transformer 51, appropriate damping due to rotation is kept, the pusher side of generator is cooperated to become
Device is flowed, the revolving speed of rotor 2 is reduced, generated output power is made to be maintained at its rated power.
4) when air velocity transducer measures wind speed greater than cut-out wind speed, or when shutting down, to electromagnet winding 41 be passed through with
Before contrary electric current, then electromagnet 4 will generate the pole polarity opposite with permanent magnet 3 (for example, if permanent magnet
3 be the pole N, then electromagnet 4 is made to generate the pole S；If permanent magnet 3 is the pole S, electromagnet 4 is made to generate the pole N), to make gig
The electromagnetic attraction downward by one, considerably increases damping due to rotation in this way, declines gig revolving speed, until being zero, realizes
Braking brake.
Above-mentioned electromagnetic control system passes through axial resultant force setting value FrefAnd the difference of the axial resultant force F measured in real time, through controlling
The electromagnetism winding exciting current given value of algorithm adjuster (such as PID regulator or self-adaptive regulator) output, to control electricity
Magnetic winding exciting current, realizes the closed-loop control of electromagnetic force, so that it is guaranteed that the low wind speed vertical axis wind-power electricity generation of the utility model
Machine realizes low wind speed starting, even running.
Claims (1)
1. a kind of low wind speed vertical axis wind power generator, it is characterised in that: include: stator (1), rotor (2), electromagnetic system, outer
Shell (6), upper end bearing (7), bottom end bearing (8), support bracket (9), shaft (10), drive system of collecting folk songs, electromagnetic control system；
The stator (1) includes stator core and three-phase stator winding, is fixedly mounted on shell (6)；The rotor (2) is interior
Rotor, including rotor core, permanent magnet are located at the radially inner side of the stator (1), and fixed with the shaft (10)；It is described
There is fixed working gas gap between stator (1) and the rotor (2)；
The electromagnetic system includes permanent magnet (3), electromagnet (4), and the two is axial staggered relatively up and down, there is regular worker between the two
Acting air gap；The permanent magnet (3) is desk permanent-magnet iron, fixed with shaft (10)；The electromagnet (4) is by winding (41) and disc type
Iron core (42) composition, the winding (41) are DC excitation winding, and the disc type iron core (42) and the support bracket (9) are solid
It is fixed；The support bracket (9) and the bottom of shell (6) are fixed；The shaft (10) is located at the top of support bracket (9), shaft
(10) bottom end is kept in contact with support bracket (9)；
The upper end bearing (7) and the top of shell (6) are fixed；The bottom end bearing (8) is located at the lower end of shaft (10), with institute
It is fixed to state support bracket (9)；Upper end bearing (7), bottom end bearing (8) cover in the outside of shaft (10), and protect with shaft (10)
Hold radial clearance；
The drive system of collecting folk songs includes that the first system (11) and second of collecting folk songs collects folk songs system (12)；Described first collects folk songs system
It (11) include three groups and three groups of components above, the even circumferential along shaft (10) is distributed, and every group of component includes 1 the first blade
(111), 1 the first horizontal support (112), one end and the shaft (10) of first horizontal support (112) are fixed, another
End is fixed with the first blade (111)；Described second system (12) of collecting folk songs is located at the top of shaft (10), including three groups and three groups with
Upper component, the even circumferential along shaft (10) are distributed, and every group of component includes 1 the second blade (121), 1 the second horizontal support
(122), one end Yu the shaft (10) of second horizontal support (122) are fixed, and the other end and the second blade (121) are solid
It is fixed；
The electromagnetic control system includes air velocity transducer, weighing sensor (5), current transformer (51)；The weighing sensor (5)
It is fixed with the bottom of shell (6), and is located at the underface of shaft (10)；The current transformer (51) is DC/DC converter, and described
The winding (41) of electromagnet (4) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503761.2U CN208184892U (en) | 2018-04-10 | 2018-04-10 | A kind of low wind speed vertical axis wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503761.2U CN208184892U (en) | 2018-04-10 | 2018-04-10 | A kind of low wind speed vertical axis wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184892U true CN208184892U (en) | 2018-12-04 |
Family
ID=64436776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820503761.2U Withdrawn - After Issue CN208184892U (en) | 2018-04-10 | 2018-04-10 | A kind of low wind speed vertical axis wind power generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN208184892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425804A (en) * | 2018-04-10 | 2018-08-21 | 曲阜师范大学 | A kind of low wind speed vertical axis wind power generator and its control method |
| RU2754977C1 (en) * | 2020-12-02 | 2021-09-08 | Общество с ограниченной ответственностью "ЭКОЭНЕРДЖИГРУПП" | Wind power plant |
-
2018
- 2018-04-10 CN CN201820503761.2U patent/CN208184892U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425804A (en) * | 2018-04-10 | 2018-08-21 | 曲阜师范大学 | A kind of low wind speed vertical axis wind power generator and its control method |
| CN108425804B (en) * | 2018-04-10 | 2024-01-19 | 北京京能新能源有限公司正镶白旗风电分公司 | Low-wind-speed vertical axis wind turbine and control method thereof |
| RU2754977C1 (en) * | 2020-12-02 | 2021-09-08 | Общество с ограниченной ответственностью "ЭКОЭНЕРДЖИГРУПП" | Wind power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20240119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20240119 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |