CN101741197B - Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator - Google Patents
Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator Download PDFInfo
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- CN101741197B CN101741197B CN2010101009240A CN201010100924A CN101741197B CN 101741197 B CN101741197 B CN 101741197B CN 2010101009240 A CN2010101009240 A CN 2010101009240A CN 201010100924 A CN201010100924 A CN 201010100924A CN 101741197 B CN101741197 B CN 101741197B
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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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Abstract
The invention relates to a flux switching type magnetic-concentration transverse flux permanent magnetic wind generator, in particular to a novel high-performance and direct-driving type transverse flux permanent magnetic wind generator. The generator comprises a stator, a rotor, permanent magnets and a winding. The stator consists of a plurality of stator cores (1) and an armature winding (5), wherein the stator cores (2) are distributed around the rotor. Two adjacent stator cores (1) in the circumferential direction are arranged in bilateral symmetry, and the stator cores are arranged on a casing (7) made from non-magnetic conductive material. Rotor cores (4) are arranged on a barrel (8) made from the non-magnetic conductive material. The barrel is connected with a motor rotary shaft (6), and is connected with a motor casing (7) through a bearing (9). Both sides of the rotor cores (4) are respectively embedded into permanent magnets (2) and (3), and the pole directions are opposite. The pole directions of the permanent magnets (2) and (3) of two adjacent rotor cores (4) in the peripheral direction are opposite. According to the motor structure, the single-phase generator can be manufactured, and the multiple-phase generator also can be manufactured.
Description
Technical field
The present invention relates to a kind of improved generator, the flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator in particularly a kind of high-performance and direct driving field.
Background technology
The aggravation of energy crisis, the lifting of restriction global economy, and threatening human social, develop the important component part that new and renewable sources of energy has become global majority state energy development strategy energetically.Than the regenerative resource of other form, wind energy (Wind Power) maturity is the highest, and economy is best.By 2010, global wind-powered electricity generation installation total capacity will reach 230GW, the about 10GW of China, and growth momentum is swift and violent, and exploitation prospect is wide.Wind-driven generator (Wind Generator) is the key core equipment of wind power system, and it is electric directly to affect the efficient of wind-powered electricity generation power conversion and the cost and the reliability of system with quality mechanical performance.
Because the wind-driven generator rotating speed is lower, middle low power be tens～hundreds of rev/min, the MW level have only tens rev/mins, according to Principle of Electric Engine, reach certain power, and will reduce motor diameter, alleviate its volume and weight, just must enlarge markedly electromagnetic force.Electromagnetic force is proportional to magnetic flux and electric current; In the traditional radial flux and axial-flux electric machine; The iron core of guiding magnetic flux and the lead of conduction current are in the same plane, and under the certain situation of motor diameter, it is long-pending conflicting with the increase cross-sectional area of conductor to increase core area.Fortunately; Transverse flux motor (Transverse Flux Motor-TFM) can address this problem; Its armature winding and main magnetic circuit are structurally full decoupled; Therefore can independently adjust coil window and magnetic circuit size as required and confirm electricity, the magnetic loading of motor, thereby can obtain very high torque density.
Though lot of domestic and foreign mechanism had carried out number of research projects to the transverse magnetic flux generator in recent years, also exist some problems to demand urgently improving and solving.Existing transverse flux permanent magnetic motor, the only corresponding one group of stator core of two adjacent groups rotor core, the space availability ratio of magnetic flux is on the low side, and the effective length ratio of winding is not high, and torque density also has the space of improving.
Summary of the invention
Technical problem: technical problem to be solved by this invention is: the concentrated magnetic transverse magnetic flux permanent magnetism wind mill generator that a kind of high power density and high torque density are provided.
Technical scheme: flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator of the present invention; Comprise stator and rotor; Stator is to constitute by being distributed in rotor circumference outer some stator cores and armature winding, and adjacent two the stator core left-right symmetric of circumferencial direction are arranged; Each stator core measure-alike, the left and right symmetric arrays respectively of adjacent two stator cores of every phase circumferencial direction; Each rotor core measure-alike, the rotor core both sides embed first permanent magnet, second permanent magnet respectively, and pole orientation is relative, and first permanent magnet, second permanent magnet pole of adjacent two rotor cores of circumferencial direction are in the opposite direction.
Silicon steel plate packing is adopted in rotor core, and is installed in rotor integral body of formation on the non-magnet material cylinder, and links to each other with machine shaft, links to each other with casing through bearing at last.
Each stator core measure-alike, and adopt silicon steel plate packing, and be installed in and form a stator integral body in the non-magnet material casing sleeve.
When this generator was threephase generator, in the motor shaft direction, three groups of stator cores and three group rotors were unshakable in one's determination side by side, and made every group of stator core differ 120 degree electrical degrees, perhaps made every group rotor iron core differ 120 degree electrical degrees.
The every rotor core that has 2p stator core and 2p mutually of the motor of number of poles 2p.
The stator of motor and rotor-position can exchange, and constitute the version of external rotor, internal stator.
This motor operation logic is following:
There are two different intervening portions in this rotor.
When rotor is in the position for the moment, the flow direction that passes stator winding that adjacent two unit permanent magnetism produce is all a direction; And when rotor was in position two, flow direction switched to another direction.When rotor rotated continuously, the flow direction of linkage was periodically-varied in the stator winding, thereby induced induced potential, realized energy converting between mechanical.
Beneficial effect: place a pair of permanent magnet in the rotor core; And the permanent magnet magnetization in adjacent two rotor cores of circumferencial direction is in the opposite direction; In conjunction with the left and right design feature of symmetric arrays respectively of adjacent two stator cores, can realize the function of magnetic flux conversion, can avoid the situation of the only corresponding stator core of adjacent two rotor cores; When the number of poles 2p of this motor; Every rotor core that has 2p stator core and 2p mutually, i.e. rotor core be corresponding to a stator core, thereby improved the utilance of motor magnetic flux.In addition, also shorten the invalid length of winding effectively, improved the torque density of motor to a certain extent.
Each stator core of this motor is measure-alike, and each rotor core size is also identical, and all available silicon steel plate packing forms.Each stator core is installed in the non-magnet material casing circular sleeve, and it is whole to form stator; Each rotor core is placed on the non-magnet material cylinder, and it is whole to form rotor, and links to each other with machine shaft.Owing to adopted silicon steel plate packing, can reduce the leakage flux of motor effectively, thereby can improve the power factor of motor.
Description of drawings
Fig. 1 is the structural representation of a mutually a pair of utmost point in the flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator;
Fig. 2 is the profile (phase) of flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator;
Fig. 3 is t
0The main flux of flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator (clockwise);
Fig. 4 is t
1The main flux of flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator (counterclockwise).
Embodiment
Flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator of the present invention is made up of stator, rotor.Space availability ratio for the better utilization transverse magnetic flux; At the two ends of rotor core, embed a pole orientation permanent magnet opposed respectively, the permanent magnet magnetization in adjacent two rotor cores of every phase circumferencial direction is in the opposite direction; Silicon steel plate packing is all used in each rotor core; And measure-alike, place on the non-magnet material cylinder, it is whole to form rotor.Permanent magnet in the rotor core adopts NdFeB material.
Each stator core only has silicon steel plate packing, and is simple in structure, and each stator core is measure-alike, the left and right symmetric arrays respectively of adjacent two stator cores of every phase circumferencial direction, and place in the non-magnet material casing sleeve, it is whole to constitute stator.
When generator is the m phase time, the electrical degree between the structure of every phase differs the 360/m degree.Especially, during as threephase generator, the electrical degree between every phase structure differs 120 degree.In addition, when the number of poles 2p of this motor, every rotor core that has 2p stator core and 2p mutually.Therefore can effectively utilize its space.
As shown in Figure 1; For single-phase generator; The physical model of this flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator mainly is made up of following components: stator core 1, first permanent magnet 2 and second permanent magnet 3, rotor core 4, armature winding 5, alternator shaft 6, non-magnet material stator sleeve 7 is formed with non-magnet material rotor cylinder 8.Each stator is made up of stator core 1 and armature winding 5, each stator core 1 consistent size, and the circumferencial direction left-right symmetric is arranged, and adopts silicon steel plate packing, and is installed in stator integral body of formation in the non-magnet material sleeve 7.Rotor portion is made up of rotor core 4 and permanent magnet 2 and 3; Each rotor core 4 consistent size, and adopt silicon steel plate packing, and be installed in rotor integral body of formation on the non-magnet material cylinder 8; And link to each other, and link to each other with motor case through bearing 9 with alternator shaft 6.Robustness and reliability during with amplification generator rotor rotary work guarantee the even running of generator in operation process.
For multiphase generator, only be on the direction of motor shaft 6, increase corresponding several groups of same stator and rotor sructures, and make every group the electrical degree of structure differ 360/m degree (m is the number of phases).
The motor of outer-rotor structure also is applicable to this.
In addition, consider, select to have the material of the Nd-Fe-Bo permanent magnet material of higher coercivity as motor permanent magnet 2 and 3 from improving the close thermal stability of motor gas-gap magnetic with magnet steel.
Claims (4)
1. flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator; Comprise stator and rotor; It is characterized in that: stator is to constitute by being distributed in outer some stator cores (1) of rotor circumference and armature winding (5), and adjacent two stator cores of circumferencial direction (1) left-right symmetric is arranged; Each stator core (1) measure-alike, the left and right symmetric arrays respectively of adjacent two stator cores of every phase circumferencial direction (1); Each rotor core (4) measure-alike, rotor core (4) both sides embed first permanent magnet (2) second permanent magnets (3) respectively, and pole orientation is relative, and first permanent magnet (2), second permanent magnet (3) pole orientation of adjacent two rotor cores of circumferencial direction (4) are opposite;
Silicon steel plate packing is adopted in rotor core (4), and is installed in upward rotor integral body of formation of non-magnet material cylinder (8), and links to each other with machine shaft (6), links to each other with non-magnet material casing sleeve (7) through bearing (9) at last;
Each stator core (1) measure-alike, and adopt silicon steel plate packing, and be installed in and form a stator integral body in the non-magnet material casing sleeve (7).
2. according to right 1 described flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator; It is characterized in that: when this generator is threephase generator; In motor shaft (6) direction; Three groups of stator cores (1) and three group rotors unshakable in one's determination (4) side by side, and make every group of stator core (1) differ 120 degree electrical degrees, perhaps make every group rotor (4) unshakable in one's determination differ 120 degree electrical degrees.
3. according to right 1 described flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator, it is characterized in that: the every rotor core (4) that has 2p stator core (1) and 2p mutually of the motor of number of poles 2p.
4. according to right 1 described flux switching type magnetic-concentration transverse flux permanent magnetic wind-driven generator, it is characterized in that: the said stator and the rotor-position of motor are exchanged, constitute the version of external rotor, internal stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101009240A CN101741197B (en) | 2010-01-22 | 2010-01-22 | Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101009240A CN101741197B (en) | 2010-01-22 | 2010-01-22 | Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator |
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| Publication Number | Publication Date |
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| CN101741197A CN101741197A (en) | 2010-06-16 |
| CN101741197B true CN101741197B (en) | 2012-05-23 |
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| CN2010101009240A Expired - Fee Related CN101741197B (en) | 2010-01-22 | 2010-01-22 | Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013739B (en) * | 2010-11-08 | 2012-06-27 | 东南大学 | Hal-Bach permanent magnet actuator capable of lineally rotating two degrees of freedom |
| CN102361379B (en) * | 2011-11-01 | 2013-03-20 | 东南大学 | Large-capacity double-U-type stator double-disk type rotor transverse magnetic flux permanent magnet wind-driven generator |
| CN102355110B (en) * | 2011-11-01 | 2013-03-20 | 东南大学 | High-capacity outer-rotor/trihedral-stator transverse-flux permanent magnet wind-driven generator |
| WO2015056268A1 (en) * | 2013-10-14 | 2015-04-23 | Ekoard | Inverse transverse flux machine |
| CN105656228B (en) * | 2016-01-25 | 2018-10-09 | 江苏大学 | A kind of transverse flux permanent magnetic motor |
| CN105656267B (en) * | 2016-03-16 | 2017-11-28 | 合肥学院 | Bipolarity Transverse Flux Permanent Magnetic Synchronous Machine |
| CN106169850A (en) * | 2016-07-19 | 2016-11-30 | 合肥学院 | Bipolarity electrical excitation transverse magnetic flux synchronous motor |
| CN106877624A (en) * | 2017-03-29 | 2017-06-20 | 南京信息工程大学 | New pair of Ω type stator horizontal magnetic pass permanent magnetic line electromotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976186A (en) * | 2006-12-13 | 2007-06-06 | 哈尔滨工业大学 | Transverse flux cylinder linear reluctance motor |
| CN101527470A (en) * | 2009-03-18 | 2009-09-09 | 东南大学 | Magneticflux-switching type composite excitation transverse-magneticflux wind powered generator |
| CN101577449A (en) * | 2009-03-18 | 2009-11-11 | 东南大学 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
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2010
- 2010-01-22 CN CN2010101009240A patent/CN101741197B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976186A (en) * | 2006-12-13 | 2007-06-06 | 哈尔滨工业大学 | Transverse flux cylinder linear reluctance motor |
| CN101527470A (en) * | 2009-03-18 | 2009-09-09 | 东南大学 | Magneticflux-switching type composite excitation transverse-magneticflux wind powered generator |
| CN101577449A (en) * | 2009-03-18 | 2009-11-11 | 东南大学 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
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