CN101577449A - Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator - Google Patents
Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator Download PDFInfo
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- CN101577449A CN101577449A CNA2009100260582A CN200910026058A CN101577449A CN 101577449 A CN101577449 A CN 101577449A CN A2009100260582 A CNA2009100260582 A CN A2009100260582A CN 200910026058 A CN200910026058 A CN 200910026058A CN 101577449 A CN101577449 A CN 101577449A
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Abstract
The invention provides a magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, which is a novel transverse magnetic flux permanent magnetism wind mill generator which is high in power density and torque density and is directly driven. A stator consists of a plurality of stator cores(1) distributed around a rotor and an armature winding(4); each stator core(1) is U-shaped, both sides of the stator core(1) are embedded with a first permanent magnet(2) and a second permanent magnet(3), and magnetic pole directions of the two permanent magnets are opposite; the ring-shaped winding(4) is arranged in the stator; the magnetic poles of the first permanent magnets(2) of the two adjacent stator cores(1) are opposite, and the magnetic poles of the second permanent magnets(3) of the two adjacent stator cores(1) are also opposite; all rotor cores(5) are the same in size; the two adjacent rotor cores(5) are aligned left and right respectively and arranged at intervals; the rotor cores(5) are made by overlapping silicon steel sheets and arranged on a cylinder(8) made of non-magnetic conduction materials to form the whole rotor; and the rotor is connected with a rotating shaft of a motor (6) and then connected with a shell(7) through a bearing(9).
Description
Technical field
The present invention relates to a kind of improved generator, the magnetic flux switching type transverse magnetic flux permanent magnetism wind mill 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 its electric and quality mechanical performance directly affects the efficient of wind-powered electricity generation power conversion and the cost and the reliability of system.
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, under the certain situation of motor diameter, increase core area and increase cross-sectional area of conductor long-pending conflicting.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 determine 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 magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator that a kind of high power density and high torque density are provided.
Technical scheme: magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator of the present invention, stator is to be made of the some stator cores and the armature winding that are distributed in peritrochanteric, each stator core is the U type, both sides embed first permanent magnet, second permanent magnet respectively, this two permanent magnet magnetics extreme direction is relative, place Circular Winding in the stator, first permanent magnet, second permanent magnet pole of every mutually adjacent two stator cores are opposite; Each rotor core measure-alike, the left and right alignment respectively of every mutually adjacent two rotor cores is spaced, and 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 link to each other with machine shaft, link to each other with casing by bearing at last.
Each stator core measure-alike, and adopt silicon steel plate packing, and be installed in the casing sleeve of non-magnet material and form a stator integral body.Described three groups of stator cores and three group rotors are unshakable in one's determination and come the motor shaft direction, and make every group of stator core differ 120 degree electrical degrees, perhaps make every group rotor iron core differ 120 degree electrical degrees, constitute threephase generator.
When stator core and rotor core are the motor of number of poles 2p, every rotor core that has 2p stator core and 2p mutually.First permanent magnet, second permanent magnet are selected NdFeB material for use.Stator core and rotor core position can exchange, and constitute the version of external rotor, internal stator.
Beneficial effect: place a pair of permanent magnet in the stator core, and the permanent magnet magnetization direction in adjacent two stator cores is opposite, in conjunction with the left and right spaced design feature of aliging respectively of adjacent two rotor cores, can realize the function that magnetic flux switches, 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 is 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, forms stator integral body; Each rotor core is placed on the non-magnet material cylinder, forms rotor integral body, 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 magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator structural representation (a mutually a pair of utmost point);
Fig. 2 is the profile (phase) of magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator;
Fig. 3 is t
0The main flux of magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator
Fig. 4 is t
1The main flux of magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator.
Generator stator core 1, the first permanent magnet 2, second permanent magnet 3 are arranged, armature winding 4, rotor core 5, alternator shaft 6, casing 7, non-magnet material rotor cylinder 8, bearing 9 among the above figure.
Embodiment
Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator of the present invention is made up of stator, rotor.Space availability ratio for the better utilization transverse magnetic flux, two ends in stator core, embed a pole orientation permanent magnet opposed respectively, permanent magnet magnetization direction in every mutually adjacent two stator cores is opposite, silicon steel plate packing is all used in each stator core, and measure-alike, and place in the non-magnet material casing sleeve, stator integral body formed.Permanent magnet in the stator core adopts NdFeB material.
Each rotor core only has silicon steel plate packing, and is simple in structure, and each rotor core is measure-alike, and the left and right alignment respectively of every mutually adjacent two rotor cores is spaced, and places on the non-magnet material cylinder, constitutes rotor integral body.
When generator is the m phase time, the electrical degree between every phase structure 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.
Motor magnetic flux switching principle is as follows:
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 be in position one differ 180 the degree electrical degrees position two time, flow direction switches 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.
As shown in Figure 1, for single-phase generator, the physical model of this magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator mainly is made up of following components: stator core 1, first permanent magnet 2, second permanent magnet 3, armature winding 4, rotor core 5, alternator shaft 6, non-magnet material stator sleeve 7 and non-magnet material rotor cylinder 8 are formed.Each stator is made of stator core 1 and armature winding 4 and first permanent magnet 2, second permanent magnet 3; Rotor portion comprises that the adjacent and left and right spaced rotor core 5 of aliging respectively constitutes.Each stator core 1 consistent size, and adopt silicon steel plate packing, and be installed in stator integral body of formation in the non-magnet material sleeve 7.Each rotor core 5 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 with alternator shaft 6, and link to each other with motor case by bearing 9.Robustness and reliability during with amplification generator rotor rotary work guarantee the even running of generator in operation process.
For the m phase generator, on the direction of motor shaft 6, the same stator and rotor sructure of total accordingly m group, and make the electrical degree of every group 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 first permanent magnet 2, second permanent magnet 3 from improving motor gas-gap magnetic thermal stability close and magnet steel.
Claims (6)
1, a kind of magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: stator is to be made of some stator cores (1) that are distributed in peritrochanteric and armature winding (4), each stator core (1) is the U type, both sides embed first permanent magnet (2), second permanent magnet (3) respectively, this two permanent magnet magnetics extreme direction is relative, place Circular Winding (4) in the stator, first permanent magnet (2), second permanent magnet (3) magnetic pole of every mutually adjacent two stator cores (1) are opposite; Each rotor core (5) measure-alike, the left and right alignment respectively of every mutually adjacent two rotor cores (5) is spaced, silicon steel plate packing is adopted in rotor core (5), and be installed in non-magnet material cylinder (8) and go up form a rotor integral body, and link to each other with machine shaft (6), link to each other with casing (7) by bearing (9) at last.
2, according to right 1 described magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: each stator core (1) measure-alike, and adopt silicon steel plate packing, and be installed in casing (7) sleeve of non-magnet material and form a stator integral body.
3, according to right 1 described magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: described three groups of stator cores (1) and three group rotor iron cores (5) also come motor shaft (6) direction, and make every group of stator core (1) differ 120 degree electrical degrees, perhaps make every group rotor iron core (5) differ 120 degree electrical degrees, constitute threephase generator.
4, according to right 1 described magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: when stator core (1) and rotor core (5) are the motor of number of poles 2p, every rotor core (5) that has 2p stator core (1) and 2p mutually.
5, according to right 1 described magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: first permanent magnet (2), second permanent magnet (3) are selected NdFeB material for use.
6, according to right 1 described magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: stator core (1) and rotor core (5) position can exchange, and constitute the version of external rotor, internal stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100260582A CN101577449B (en) | 2009-03-18 | 2009-03-18 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100260582A CN101577449B (en) | 2009-03-18 | 2009-03-18 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
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| CN101577449A true CN101577449A (en) | 2009-11-11 |
| CN101577449B CN101577449B (en) | 2011-04-20 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102237768A (en) * | 2010-04-23 | 2011-11-09 | 巨诺国际有限公司 | Generator |
| CN102290945A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨工业大学 | Transverse magnetic flux multi-phase reluctance motor |
| CN101741197B (en) * | 2010-01-22 | 2012-05-23 | 东南大学 | Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator |
| CN102843013A (en) * | 2012-09-04 | 2012-12-26 | 哈尔滨工业大学 | Cylindrical magnetic flux switching type oscillation motor |
| CN103078466A (en) * | 2012-12-20 | 2013-05-01 | 东南大学 | Magnetism-gathering-type magnetic flux switching permanent magnet memory motor |
| CN103187814A (en) * | 2011-12-30 | 2013-07-03 | 华锐风电科技(集团)股份有限公司 | Permanent magnet transverse magnetic flow motor |
| CN103199669A (en) * | 2013-02-25 | 2013-07-10 | 哈尔滨工业大学 | Multi-phase long-stroke cylinder-shaped magnetic-flux-switching-type linear motor |
| CN103607059A (en) * | 2013-11-18 | 2014-02-26 | 南京理工大学 | Stator poly magnetic type magnetic flux switching transverse magnetic flux permanent magnet wind power generator |
| WO2015056268A1 (en) * | 2013-10-14 | 2015-04-23 | Ekoard | Inverse transverse flux machine |
| CN105656228A (en) * | 2016-01-25 | 2016-06-08 | 江苏大学 | Transverse flux permanent magnet motor |
| CN107919754A (en) * | 2017-12-15 | 2018-04-17 | 华中科技大学 | A kind of transverse flux permanent magnetic motor |
| CN108347107A (en) * | 2018-05-09 | 2018-07-31 | 江苏富丽华通用设备股份有限公司 | A kind of stator core of novel permanent-magnet motor |
| CN108494122A (en) * | 2018-04-25 | 2018-09-04 | 华中科技大学 | A kind of transverse flux permanent magnetic motor |
Family Cites Families (4)
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| GB2090478B (en) * | 1977-10-06 | 1983-01-19 | Pa Management Consult | Permanent magnet eletromagnetic machines |
| DE102004057101B4 (en) * | 2004-11-26 | 2006-08-24 | Voith Turbo Gmbh & Co. Kg | Single-sided synchronous machine with transverse flux guidance |
| CN100508335C (en) * | 2006-06-19 | 2009-07-01 | 清华大学 | Transverse magnetic field permanent-magnet synchronous motor with rotor magnetic pole three-sided wall type structure |
| CN201378785Y (en) * | 2009-03-18 | 2010-01-06 | 东南大学 | Wind generator with high torque density |
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2009
- 2009-03-18 CN CN2009100260582A patent/CN101577449B/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741197B (en) * | 2010-01-22 | 2012-05-23 | 东南大学 | Flux switching type magnetic-concentration transverse flux permanent magnetic wind generator |
| CN102237768A (en) * | 2010-04-23 | 2011-11-09 | 巨诺国际有限公司 | Generator |
| CN102290945B (en) * | 2011-08-25 | 2013-08-28 | 哈尔滨工业大学 | Transverse magnetic flux multi-phase reluctance motor |
| CN102290945A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨工业大学 | Transverse magnetic flux multi-phase reluctance motor |
| WO2013026341A1 (en) * | 2011-08-25 | 2013-02-28 | 哈尔滨工业大学 | Poly-phase reluctance electric motor with transverse magnetic flux |
| CN103187814A (en) * | 2011-12-30 | 2013-07-03 | 华锐风电科技(集团)股份有限公司 | Permanent magnet transverse magnetic flow motor |
| CN102843013A (en) * | 2012-09-04 | 2012-12-26 | 哈尔滨工业大学 | Cylindrical magnetic flux switching type oscillation motor |
| CN102843013B (en) * | 2012-09-04 | 2014-12-10 | 哈尔滨工业大学 | Cylindrical magnetic flux switching type oscillation motor |
| CN103078466A (en) * | 2012-12-20 | 2013-05-01 | 东南大学 | Magnetism-gathering-type magnetic flux switching permanent magnet memory motor |
| CN103078466B (en) * | 2012-12-20 | 2015-01-28 | 东南大学 | Magnetism-gathering-type magnetic flux switching permanent magnet memory motor |
| CN103199669A (en) * | 2013-02-25 | 2013-07-10 | 哈尔滨工业大学 | Multi-phase long-stroke cylinder-shaped magnetic-flux-switching-type linear motor |
| CN103199669B (en) * | 2013-02-25 | 2016-04-13 | 哈尔滨工业大学 | Heterogeneous Long Distances cylinder type flux suitching type linear electric motors |
| WO2015056268A1 (en) * | 2013-10-14 | 2015-04-23 | Ekoard | Inverse transverse flux machine |
| US10250112B2 (en) | 2013-10-14 | 2019-04-02 | Ekorad Ltd. | Transverse flux machine |
| CN103607059A (en) * | 2013-11-18 | 2014-02-26 | 南京理工大学 | Stator poly magnetic type magnetic flux switching transverse magnetic flux permanent magnet wind power generator |
| CN105656228B (en) * | 2016-01-25 | 2018-10-09 | 江苏大学 | A kind of transverse flux permanent magnetic motor |
| CN105656228A (en) * | 2016-01-25 | 2016-06-08 | 江苏大学 | Transverse flux permanent magnet motor |
| CN107919754A (en) * | 2017-12-15 | 2018-04-17 | 华中科技大学 | A kind of transverse flux permanent magnetic motor |
| CN107919754B (en) * | 2017-12-15 | 2020-01-03 | 华中科技大学 | Transverse flux permanent magnet motor |
| CN108494122A (en) * | 2018-04-25 | 2018-09-04 | 华中科技大学 | A kind of transverse flux permanent magnetic motor |
| CN108494122B (en) * | 2018-04-25 | 2019-08-30 | 华中科技大学 | A kind of transverse flux permanent magnetic motor |
| CN108347107A (en) * | 2018-05-09 | 2018-07-31 | 江苏富丽华通用设备股份有限公司 | A kind of stator core of novel permanent-magnet motor |
| CN108347107B (en) * | 2018-05-09 | 2024-04-30 | 江苏富丽华通用设备股份有限公司 | Novel stator core of permanent magnet motor |
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