CN103915961B - A kind of axial magnetic flux double-salient-pole permanent magnet generator - Google Patents
A kind of axial magnetic flux double-salient-pole permanent magnet generator Download PDFInfo
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- CN103915961B CN103915961B CN201410143788.1A CN201410143788A CN103915961B CN 103915961 B CN103915961 B CN 103915961B CN 201410143788 A CN201410143788 A CN 201410143788A CN 103915961 B CN103915961 B CN 103915961B
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Abstract
The invention discloses a kind of axial magnetic flux double-salient-pole permanent magnet generator, technical problem to be solved is: the problems such as the structure existed for existing generator is too complicated, self energy consumption is large.The technical scheme taked is: comprise rotor, generator external stator, generator internal stator, permanent-magnetic clamp and armature spindle; Generator internal stator is nested in generator external stator, leaves gap between generator internal stator and generator external stator; Described permanent-magnetic clamp is installed in aforementioned gap; Armature spindle is arranged on the center of rotor, and fixing as a whole; Described armature spindle penetrates the center of generator internal stator, and does not contact with generator internal stator; Described rotor is positioned at the top of generator external stator and generator internal stator.Doubly salient permanent magnet motor and axial-flux electric machine combine by the present invention, have high efficiency, high power density, compact conformation, noise is little, starting wind velocity is low advantage.
Description
Technical field
The present invention relates to a kind of generator, specifically a kind of axial magnetic flux double-salient-pole permanent magnet generator, belongs to technical field of power generation.
Background technology
In generation of electricity by new energy, about the research of generator, mainly concentrate on three kinds of generators at present: brushless double feed generator, magneto alternator and double-salient-pole generator.
Brushless double feed generator can regulate the frequency of exciting current according to prime mover rotation speed change, realize constant frequency and export, and is realized the independent regulation of generated power, reactive power by the amplitude and phase place changing exciting current.Because the air gap of brushless double feed generator is large, then the excitation reactive power power of the controlled winding pwm converter needed is also large, is therefore not suitable for use in low-speed direct driving generator.
Magneto alternator has series of advantages, as lightweight, efficiency is high, dynamic response is fast.Work under the low speed that generator turns at tens to hundreds of per minute, for ensureing that it exports in the scope of normal frequency (30 ~ 80Hz), generator needs to adopt larger rotor diameter and more number of pole-pairs.In design of electrical motor process, after selected stator diameter, can face because rotor permanent magnet number of magnetic poles is many and cause the problem that magnetic pole pole span is little, excitation magnetic potential is not enough.
Double-salient-pole generator is a kind of motor put forward the 1950's, along with power electronics and microelectronic develop rapidly, in the nineties, doubly salient permanent magnet motor is proposed by people such as famous American motor expert T.A.Lipo as a kind of electromechanical integration controllable AC Variable-speed system, and obtains extensive concern and the further investigation of countries in the world scientific research personnel very soon.Its electric machine rotor construction profile is similar to switched reluctance machines, in double-salient-pole structure, but its rotor (or stator) is equipped with permanent magnet, so its operation logic and control strategy and switched reluctance machines have the difference of essence.Doubly salient permanent magnet motor major advantage be structure simple, be easy to safeguard, control flexibly, dynamic response is fast, good speed adjustment features and torque/current ratio large, it has good using value in aviation and wind power generation field.According to current present Research, double-salient-pole generator can be divided into common double salient pole generator, flux-reversal generator and magnetic flux to switch generator.
Summary of the invention
Technical problem to be solved by this invention is: the problems such as the structure existed for existing generator is too complicated, self energy consumption is large.
The object of the invention is to propose a kind of to there is high efficiency, high power density and simple, the novel axial magnetic flux double-salient-pole permanent magnet generator of structure.
The technical scheme that the present invention takes is:
A kind of axial magnetic flux double-salient-pole permanent magnet generator, comprises rotor, generator external stator, generator internal stator, permanent-magnetic clamp and armature spindle; Described generator internal stator is nested in generator external stator, leaves gap between generator internal stator and generator external stator; Described permanent-magnetic clamp is installed in aforementioned gap; Armature spindle is arranged on the center of rotor, and fixing as a whole; Described armature spindle penetrates the center of generator internal stator, and does not contact with generator internal stator; Described rotor is positioned at the top of generator external stator and generator internal stator;
Described generator external stator is evenly provided with three generator external stator salient poles, described three generator external stator salient poles are positioned at circumferentially same; Described is often generator external stator salient pole groove between adjacent two generator external stator salient poles, and the shape of described generator external stator salient pole groove is identical with the shape of generator external stator salient pole; Described three generator external stator salient poles are all wound with generator external armature winding;
Described generator internal stator is evenly provided with three generator internal stator salient poles, described three generator internal stator salient poles are positioned at circumferentially same; Be often salient pole groove in generator internal stator between adjacent two generator internal stator salient pole centers, in described generator internal stator, the shape of salient pole groove is identical with the shape of generator internal stator salient pole; Described three generator internal stator salient poles are all wound with armature winding in generator;
Aforementioned three generator external stator salient poles and three generator internal stator salient poles are positioned at same plane;
Described rotor is provided with outer rotor salient pole group and internal rotor salient pole group; Described outer rotor salient pole group is corresponding with generator external stator salient pole; Described internal rotor salient pole group is corresponding with generator internal stator salient pole;
Described outer rotor salient pole group comprises two outer rotor salient pole; Described two outer rotor salient pole are evenly arranged on rotor, and are positioned at circumferentially same; Described two outer rotor salient pole are corresponding with three generator external stator salient poles, leave the first gap between two outer rotor salient pole and three generator external stator salient poles;
Described internal rotor salient pole group comprises two internal rotor salient poles, and described two internal rotor salient poles are evenly arranged on rotor, and are positioned at circumferentially same; Described two internal rotor salient poles are corresponding with three generator internal stator salient poles, and leave the second gap between two internal rotor salient poles and three generator internal stator salient poles; Described first gap is equal with the second gap; Described two outer rotor salient pole and two internal rotor salient poles are positioned at same plane; The diameter of the circumference at described two outer rotor salient pole places is greater than the diameter of the circumference at described two internal rotor salient pole places.
The shape of generator external stator salient pole of the present invention, generator internal stator salient pole, outer rotor salient pole and internal rotor salient pole is fan-shaped.
In order to have higher power density, the first gap of the present invention and the second gap are preferably 0.3-1.5mm.
Beneficial effect
The present invention's beneficial effect compared with prior art: the generator 1, adopting tray type structure, axial dimension is short, and less duty ratio makes it be easier to run at flat installing space.2, have power density high, the moment of inertia of location torque and rotor is little, and low cruise is steady, and output voltage is pulsed little feature.3, at steady state, be axially not eccentric between stator and rotor, solve the eccentric impact on generator performance of stator and rotor.4, doubly salient permanent magnet motor and axial-flux electric machine combine by the present invention, have high efficiency, high power density, compact conformation, noise is little, starting wind velocity is low advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the installation site structural representation of generator external stator of the present invention, generator external stator salient pole, generator internal stator and generator internal stator salient pole.
Wherein, 1, generator external stator, 1-1, generator external stator salient pole, 1-2, generator external stator salient pole groove, 2, generator internal stator, 2-1, generator internal stator salient pole, salient pole groove in 2-2, generator internal stator, 3, rotor, 4, armature spindle, 5, armature winding in generator, 6, permanent-magnetic clamp, 7, generator external armature winding, 8, outer rotor salient pole, 9, internal rotor salient pole, the 10, first gap, the 11, second gap.
Embodiment
For making content of the present invention more become apparent, be further described below in conjunction with accompanying drawing 1-Fig. 2 and embodiment.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, axial magnetic flux double-salient-pole permanent magnet generator of the present invention, comprises rotor 3, generator external stator 1, generator internal stator 2, permanent-magnetic clamp 6 and armature spindle 4.
Generator internal stator 2 is nested in generator external stator 1, leaves gap between generator internal stator 2 and generator external stator 1; Described permanent-magnetic clamp 6 is installed in aforementioned gap; The outer face of permanent-magnetic clamp 6 contacts with the inner face of generator external stator 1, and the inner face of permanent-magnetic clamp 6 contacts with the outer face of generator internal stator 2.Armature spindle 4 is arranged on the center of rotor 3, and fixing as a whole; Described armature spindle 4 penetrates the center of generator internal stator 2, and does not contact with generator internal stator 2; Rotor 3 is positioned at the top of generator external stator 1 and generator internal stator 2; During use, prime mover rotor is contained in one end of armature spindle 4, and rotor 3 is contained in the other end of armature spindle 4, prime mover rotor and rotor 3 and armature spindle 4 synchronous axial system; The other end of armature spindle 4 extend out to outside by the centre bore of generator internal stator 2, suit fan blade.
Permanent-magnetic clamp 6 described in the present invention is permanent-magnetic clamp of the prior art, and the magnetizing direction of permanent-magnetic clamp described in the present invention is radial magnetizing.
Generator external stator 1 is evenly provided with three generator external stator salient pole 1-1, three generator external stator salient pole 1-1 are positioned at circumferentially same; Be often generator external stator salient pole groove 1-2 between adjacent two generator external stator salient pole 1-1, the shape of described generator external stator salient pole groove 1-2 is identical with the shape of generator external stator salient pole 1-1; Three generator external stator salient pole 1-1 are all wound with generator external armature winding 7; As shown in Figure 2.
Generator internal stator 2 is evenly provided with three generator internal stator salient pole 2-1, described three generator internal stator salient pole 2-1 are positioned at circumferentially same; Be often salient pole groove 2-2 in generator internal stator between adjacent two generator internal stator salient pole 2-1 centers, in described generator internal stator, the shape of salient pole groove 2-2 is identical with the shape of generator internal stator salient pole 2-1; Three generator internal stator salient pole 2-1 are all wound with armature winding 5 in generator; Aforementioned three generator external stator salient pole 1-1 and three generator internal stator salient pole 2-1 is positioned at same plane;
Rotor 3 is provided with outer rotor salient pole group and internal rotor salient pole group; Described outer rotor salient pole group is corresponding with generator external stator salient pole 1-1; Described internal rotor salient pole group is corresponding with generator internal stator salient pole 2-1;
Outer rotor salient pole group comprises two outer rotor salient pole 8; Described two outer rotor salient pole 8 are evenly arranged on rotor 3, and are positioned at circumferentially same; Described two outer rotor salient pole 8 are corresponding with three generator external stator salient pole 1-1, leave the first gap 10 between two outer rotor salient pole 8 and three generator external stator salient pole 1-1;
Internal rotor salient pole group comprises two internal rotor salient poles 9, and described two internal rotor salient poles 9 are evenly arranged on rotor 3, and are positioned at circumferentially same; Two internal rotor salient poles 9 are corresponding with three generator internal stator salient pole 2-1, and leave the second gap 11 between two internal rotor salient poles 9 and three generator internal stator salient pole 2-1; First gap 10 is equal with the second gap 11; Described two outer rotor salient pole 8 and two internal rotor salient poles 9 are positioned at same plane; The diameter of the circumference at described two outer rotor salient pole 8 places is greater than the diameter of the circumference at described two internal rotor salient pole 9 places.
The shape of generator external stator salient pole 1-1 of the present invention, generator internal stator salient pole 2-1, outer rotor salient pole 8 and internal rotor salient pole 9 adopt any shape can, the present invention preferentially adopts fan-shaped.
In order to have higher power density, the first gap of the present invention and the second gap are preferably 0.3-1.5mm.
Operation principle of the present invention:
When adopting the present invention to generate electricity, prime mover rotor driven axle 4 and rotor 3 rotate, due to the existence of the outer rotor salient pole group on rotor 3 and internal rotor salient pole group, the magnetic flux size of armature winding 5 and generator external armature winding 7 in generator can be caused when rotor 3 rotates to change, thus induced electromotive force is induced in armature winding 5 and generator external armature winding 7 in generator, the size of induced electromotive force is relevant with the rotating speed of rotor 3.
Part that the present invention does not relate to all communicates with prior art or adopts prior art to be realized.
Claims (3)
1. an axial magnetic flux double-salient-pole permanent magnet generator, is characterized in that: comprise rotor (3), generator external stator (1), generator internal stator (2), permanent-magnetic clamp (6) and armature spindle (4); Described generator internal stator (2) is nested in generator external stator (1), leaves gap between generator internal stator (2) and generator external stator (1); Described permanent-magnetic clamp (6) is installed in aforementioned gap; Armature spindle (4) is arranged on the center of rotor (3), and fixing as a whole; Described armature spindle (4) penetrates the center of generator internal stator (2), and does not contact with generator internal stator (2); Described rotor (3) is positioned at the top of generator external stator (1) and generator internal stator (2);
Described generator external stator (1) is evenly provided with three generator external stator salient poles (1-1), described three generator external stator salient poles (1-1) are positioned at circumferentially same; Be often generator external stator salient pole groove (1-2) between adjacent two generator external stator salient poles (1-1), the shape of described generator external stator salient pole groove (1-2) is identical with the shape of generator external stator salient pole (1-1); Described three generator external stator salient poles (1-1) are all wound with generator external armature winding (7);
Described generator internal stator (2) is evenly provided with three generator internal stator salient poles (2-1), described three generator internal stator salient poles (2-1) are positioned at circumferentially same; Be often salient pole groove (2-2) in generator internal stator between adjacent two generator internal stator salient pole (2-1) centers, in described generator internal stator, the shape of salient pole groove (2-2) is identical with the shape of generator internal stator salient pole (2-1); Described three generator internal stator salient poles (2-1) are all wound with armature winding in generator (5);
Aforementioned three generator external stator salient poles (1-1) and three generator internal stator salient poles (2-1) are positioned at same plane;
Described rotor (3) is provided with outer rotor salient pole group and internal rotor salient pole group; Described outer rotor salient pole group is corresponding with generator external stator salient pole (1-1); Described internal rotor salient pole group is corresponding with generator internal stator salient pole (2-1);
Described outer rotor salient pole group comprises two outer rotor salient pole (8); Described two outer rotor salient pole (8) are evenly arranged on rotor (3), and are positioned at circumferentially same; Described two outer rotor salient pole (8) are corresponding with three generator external stator salient poles (1-1), leave the first gap (10) between two outer rotor salient pole (8) and three generator external stator salient poles (1-1);
Described internal rotor salient pole group comprises two internal rotor salient poles (9), and described two internal rotor salient poles (9) are evenly arranged on rotor (3), and are positioned at circumferentially same; Described two internal rotor salient poles (9) are corresponding with three generator internal stator salient poles (2-1), and leave the second gap (11) between two internal rotor salient poles (9) and three generator internal stator salient poles (2-1); Described first gap (10) is equal with the second gap (11); Described two outer rotor salient pole (8) and two internal rotor salient poles (9) are positioned at same plane; The diameter of the circumference at described two outer rotor salient pole (8) places is greater than the diameter of the circumference at described two internal rotor salient pole (9) places.
2. axial magnetic flux double-salient-pole permanent magnet generator as claimed in claim 1, is characterized in that: the shape of described generator external stator salient pole (1-1), generator internal stator salient pole (2-1), outer rotor salient pole (8) and internal rotor salient pole (9) is fan-shaped.
3. axial magnetic flux double-salient-pole permanent magnet generator as claimed in claim 1, is characterized in that: the first gap and the second gap are 0.3-1.5mm.
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| CN201410143788.1A CN103915961B (en) | 2014-04-10 | 2014-04-10 | A kind of axial magnetic flux double-salient-pole permanent magnet generator |
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| CN201410143788.1A CN103915961B (en) | 2014-04-10 | 2014-04-10 | A kind of axial magnetic flux double-salient-pole permanent magnet generator |
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| CN103915961B true CN103915961B (en) | 2016-02-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105811611B (en) * | 2016-04-25 | 2018-02-16 | 山东理工大学 | Reclaim the hybrid excitation generator of exhaust energy |
| CN108011485B (en) * | 2017-11-17 | 2019-11-29 | 南京理工大学 | A kind of axial magnetic flux double-salient-pole magneto of shunt field |
| CN108011486B (en) * | 2017-11-17 | 2020-05-22 | 南京理工大学 | Parallel axial flux hybrid excitation doubly salient motor |
| CN108448755A (en) * | 2018-04-11 | 2018-08-24 | 南京工业大学 | A kind of axial magnetic flux two-phase electric excitation biconvex electrode electric machine |
| CN113659789B (en) * | 2021-08-25 | 2022-08-26 | 东南大学 | Internal and external stator axial magnetic field magnetic flux switching type hybrid permanent magnet motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427528A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Disk type motor |
| CN203301329U (en) * | 2013-05-27 | 2013-11-20 | 南京工业大学 | Magnetic suspension bearing disc type hybrid-excitation doubly-salient wind generator |
| CN203859652U (en) * | 2014-04-10 | 2014-10-01 | 南京工业大学 | Novel axial-magnetic-flux doubly-salient permanent magnet generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006304401A (en) * | 2005-04-15 | 2006-11-02 | Aisan Ind Co Ltd | Axial gap motor |
| DE202012012653U1 (en) * | 2011-01-25 | 2013-07-26 | Coriolis Power Systems Ltd. | Electric axial flow machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427528A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Disk type motor |
| CN203301329U (en) * | 2013-05-27 | 2013-11-20 | 南京工业大学 | Magnetic suspension bearing disc type hybrid-excitation doubly-salient wind generator |
| CN203859652U (en) * | 2014-04-10 | 2014-10-01 | 南京工业大学 | Novel axial-magnetic-flux doubly-salient permanent magnet generator |
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Effective date of registration: 20161115 Address after: Tai Feng Road along the street of Pukou District of Nanjing City, Jiangsu province 210000 No. 59 room 206 Silicon Valley 2-B business days Patentee after: Nanjing wheel Power Technology Co., Ltd. Address before: 210009 Nanjing new model road, Jiangsu, No. 30 Patentee before: Nanjing University of Technology |