CN103762758A - Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator - Google Patents

Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator Download PDF

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Publication number
CN103762758A
CN103762758A CN201410007606.8A CN201410007606A CN103762758A CN 103762758 A CN103762758 A CN 103762758A CN 201410007606 A CN201410007606 A CN 201410007606A CN 103762758 A CN103762758 A CN 103762758A
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China
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stator
rotor
magnet
permanent
whole
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CN201410007606.8A
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Chinese (zh)
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颜建虎
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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Priority to CN201410007606.8A priority Critical patent/CN103762758A/en
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Abstract

The invention discloses a rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator which comprises a whole stator and a whole rotor. The whole stator comprises two sets of stator cores and two sets of annular armature windings, and each set of stator core is composed of a stator yoke and stator teeth, wherein stator inner teeth and stator outer teeth are formed in the radial direction of the stator teeth, the stator inner teeth and the stator outer teeth are staggered in the circumferential direction, the distance between each stator inner tooth and the corresponding stator outer tooth in the circumferential direction is equal to the length of a permanent magnet in the circumferential direction, stator grooves are formed in the radial direction of the stator inner teeth and the stator outer teeth, the annular armature windings are arranged in the grooves, and the two sets of annular armature windings can be connected in series and also connected in parallel. The whole rotor is composed of N rotor cores and N permanent magnets, the rotor cores and the permanent magnets are arranged in the circumferential direction in sequence, the magnetic pole directions of permanent magnets adjacent in the circumferential direction are opposite in the circumferential direction, and N is larger than or equal to 2. The wind driven generator can avoid null work areas of the permanent magnets, the utilization rate of motor permanent magnets is improved, and power density of the motor is improved.

Description

Rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator
Technical field
The invention belongs to machine field, be specifically related to a kind of rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator.
Background technology
The aggravation of energy crisis, the lifting of restriction global economy, and threatening human social, Devoting Major Efforts To Developing to utilize new and renewable sources of energy to become the important component part of global majority state energy development strategy.Than the regenerative resource of other form, wind energy (Wind Power) maturity is the highest, and economy is best.Expect the year two thousand twenty, global wind-powered electricity generation installation total capacity will reach 760GW, Chinese about 230GW, 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 efficiency of wind-powered electricity generation power conversion and the cost of system and reliability.
Because wind-driven generator rotating speed is lower, middle low power be tens ~ hundreds of rev/min, MW level only have tens revs/min, 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 traditional radial flux and axial-flux electric machine, the guiding iron core of magnetic flux and the wire of conduction current, in same plane, in the situation that motor diameter is certain, 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 as required coil window and magnetic circuit size is determined electricity, the magnetic loading of motor, thereby can obtain very high torque density.
Although lot of domestic and foreign mechanism had carried out a large amount of research work to transverse flux machine in recent years, also exist some problems urgently improve and solve.For example, D. doctor Svechkarenko of the KTH university of Sweden has proposed a kind of novel high-capacity transverse flux permanent-magnet generator that is applicable to wind power generation, by calculating research, show that this motor has higher power factor, but textural anomaly is complicated, manufacturing process and cost are higher; Doctor Liu Zhemin of Shenyang University of Technology is also used in low speed wind power power field to permanent magnetism transverse flux motor and is studied, improved the structure of transverse flux motor stator core, simplified its manufacturing process, but the permanent magnet of this motor and space availability ratio are on the low side; Professor Lin Heyun of Southeast China University has proposed a kind of novel magneticfocusing transverse magnetic flux permanent magnetism wind mill generator, improved the space availability ratio of motor, but the utilance of permanent magnet need further raising.In a word, existing transverse flux permanent magnetic motor or permanent magnet and motor space availability ratio are on the low side, or manufacturing process is complicated, material cost is higher, or armature winding effective length ratio is not high, the space being also improved in power density and processing and manufacturing.
Summary of the invention
The present invention seeks to provide a kind of rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator, it can improve the utilance of permanent magnet effectively, improves the power density of motor, improves the magnetic linkage waveform of motor, reduces the location torque of motor.
The technical solution that realizes the object of the invention is:
A kind of rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator, comprise that stator is whole and rotor is whole, stator integral body comprises two groups of stator cores and two groups of annular armature windings, stator core is annular, every group of stator core forms by stator yoke and stator tooth, stator tooth is radially comprising stator internal tooth and stator external tooth, is provided with stator slot and inside and outside tooth is interlaced between internal tooth and external tooth; One group of annular armature winding is arranged in said stator groove, serial or parallel connection setting between two groups of annular armature windings; Rotor integral body is placed between two groups of stator cores, rotor integral body comprises N rotor core and N permanent magnet, N >=2 wherein, N rotor core and N permanent magnet are staggered, form circular ring structure, on the circumferencial direction of annulus, the pole orientation of adjacent permanent magnet is along the circumferential direction contrary, and internal tooth and external tooth are the length of a permanent magnet circumferencial direction at the spacing distance of circumferencial direction.
Vertically, the three cover stators that are arranged in parallel are whole and three cover rotors are whole, and every cover comprises two groups of stator cores, two groups of annular armature windings, a N rotor core and N permanent magnet, wherein N >=2, and make every cover rotor whole discrepancy 120 degree electrical degrees, form three-phase wind-driven generator.
Vertically, the three cover stators that are arranged in parallel are whole and three cover rotors are whole, and every cover comprises two groups of stator cores, two groups of annular armature windings, a N rotor core and N permanent magnet, wherein N >=2, make every cover stator whole discrepancy 120 degree electrical degrees, form three-phase wind-driven generator.
The generator of number of poles 2N is every has 2N rotor core, a N stator internal tooth and N stator external tooth mutually.
Above-mentioned rotor core is soft-magnetic composite material, and measure-alike.Said stator iron core is soft-magnetic composite material, and measure-alike.Permanent magnet material is neodymium iron boron.
Stator integral body and the rotor integral position of generator can exchange, and form the version of external rotor, internal stator.
The present invention compared with prior art, its remarkable advantage:
1, in the rotor core of rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator of the present invention, place permanent magnet, form along the circumferential direction tactic structure of rotor core, permanent magnet, and the permanent magnet magnetization direction in adjacent two rotor cores of circumferencial direction is along the circumferential direction contrary, in conjunction with the staggered design feature of the inside and outside tooth of two adjacent groups stator core, can avoid permanent magnet invalid situation, thereby improved the utilance of motor permanent magnet, improved to a certain extent the power density of motor.
2, each stator core of this motor is measure-alike, and each rotor core size is also identical, and all by soft-magnetic composite material, is processed.Each is organized between the inside and outside tooth of stator core and forms annular stator groove, and annular stator winding is placed in to groove, forms stator whole; Each rotor core and permanent magnet are along the circumferential direction staggered, and form rotor whole.Because stator and rotor iron core has adopted soft-magnetic composite material, process, can be conducive to magnetic circuit and pass on three-dimensional, and be convenient to design and the processing and manufacturing of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation (single-phase) of rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator.
Fig. 2 is t 0the main flux of moment rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator.
Fig. 3 is t 1the main flux of moment rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1
In conjunction with Fig. 1 ~ Fig. 3, for single-phase internal rotor generator, the physical model of this rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator is mainly comprised of following components: two groups of stator cores 1, N piece permanent magnet 2, a N rotor core 3 and two groups of armature winding 4 form, wherein N >=2.Two groups of stator core 1 consistent size, mirror image is staggered relatively, and adopts soft-magnetic composite material to process, and stator core 1 is radially forming stator internal tooth and stator external tooth, and the inside and outside tooth of stator is along the circumferential direction staggered, the length of permanent magnet 2 circumferencial directions of being separated by; Armature winding 4 adopts centralized Circular Winding, and is placed in the formed stator slot of inside and outside tooth of stator core 1, and series connection between two groups of annular armature windings 4; In the middle of rotor core 3, embed permanent magnet 2, the rotor that along the circumferential direction forms permanent magnet 3, the tactic form looping of rotor core 2 is whole, adjacent two permanent magnet 2 direction of magnetizations are along the circumferential direction contrary, rotor core 3 is processed by soft-magnetic composite material, each rotor core 3 and permanent magnet 2 consistent size, simple in structure, and the permanent magnet in rotor 3 adopts NdFeB material.
Embodiment 2
For single-phase external rotor generator, the physical model of this rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator is mainly comprised of following components: two groups of stator cores 1, two groups of armature winding 4 and two cover rotors are whole, wherein every cover rotor integral body comprises N permanent magnet 2 and N rotor core 3, wherein N >=2.Two groups of stator core 1 consistent size, be positioned over back-to-back motor inner side, and adopt soft-magnetic composite material to process, stator core 1 is radially forming stator internal tooth and stator external tooth, and the inside and outside tooth of stator is along the circumferential direction staggered, the length of permanent magnet 2 circumferencial directions of being separated by; Armature winding 4 adopts centralized Circular Winding, and is placed in the formed stator slot of inside and outside tooth of stator core 1, and in parallel between two groups of annular armature windings 4; Two group rotor integral body are positioned over respectively motor outside, and mirror image is consistent, in every group rotor integral body, in the middle of rotor core 3, embed permanent magnet 2, the rotor that along the circumferential direction forms permanent magnet 3, the tactic form looping of rotor core 2 is whole, and adjacent two permanent magnet 2 direction of magnetizations are along the circumferential direction contrary, rotor core 3 is processed by soft-magnetic composite material, each rotor core 3 and permanent magnet 2 consistent size, simple in structure, and the permanent magnet in rotor 3 adopts NdFeB material.
Operation logic:
This rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator is by being rotated in the magnetic field changing in annular armature winding 4, thereby induces the electromotive force of variation, to realize ac operation.Shown in Fig. 2 t 0constantly, annular armature winding 5 flow directions in stator slot are the closed-loop path that stator external tooth → stator yoke → stator internal tooth → rotor core → permanent magnet forms; When shown in Fig. 3 t 1constantly, annular armature winding 5 flow directions in stator slot are the closed-loop path that stator internal tooth → stator yoke → stator external tooth → rotor core → permanent magnet forms; Therefore in two groups of annular armature windings 4, produce induced potential, therefore by two groups of annular armature windings in series or the induced potential that can obtain all permanent magnets 2 generations in parallel.
This rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator can effectively utilize permanent magnet 2, has improved the power density of motor, and reduces the use cost of permanent magnet 2; Stator core 1 and rotor core 3 structures are comparatively simple, can process with soft-magnetic composite material, can effectively reduce the cost of processing and manufacturing, improve the power factor of motor.

Claims (8)

1. a rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator, it is characterized in that: comprise that stator is whole and rotor is whole, stator integral body comprises two groups of stator cores (1) and two groups of annular armature windings (4), stator core (1) is annular, every group of stator core (1) forms by stator yoke and stator tooth, stator tooth is radially comprising stator internal tooth and stator external tooth, is provided with stator slot and inside and outside tooth is interlaced between internal tooth and external tooth; One group of annular armature winding (4) is arranged in said stator groove, serial or parallel connection setting between two groups of annular armature windings (4); Rotor integral body is placed between two groups of stator cores (1), rotor integral body comprises N rotor core (3) and N permanent magnet (2), N >=2 wherein, N rotor core (3) and N permanent magnet (2) are staggered, form circular ring structure, on the circumferencial direction of annulus, the pole orientation of adjacent permanent magnet (2) is along the circumferential direction contrary, and internal tooth and external tooth are the length of a permanent magnet (2) circumferencial direction at the spacing distance of circumferencial direction.
2. rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator according to claim 1, it is characterized in that: vertically, the three cover stators that are arranged in parallel are whole and three cover rotors are whole, every cover comprises two groups of stator cores (1), two groups of annular armature windings (4), a N rotor core (3) and N permanent magnet (2), N >=2 wherein, and make every cover rotor whole discrepancy 120 degree electrical degrees, form three-phase wind-driven generator.
3. rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator according to claim 1, it is characterized in that: vertically, the three cover stators that are arranged in parallel are whole and three cover rotors are whole, every cover comprises two groups of stator cores (1), two groups of annular armature windings (4), a N rotor core (3) and N permanent magnet (2), N >=2 wherein, make every cover stator whole discrepancy 120 degree electrical degrees, form three-phase wind-driven generator.
4. according to the rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator described in claim 1,2 or 3, it is characterized in that: the generator of number of poles 2N is every has 2N rotor core (3), a N stator internal tooth and N stator external tooth mutually.
5. according to the rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator described in claim 1,2 or 3, it is characterized in that: above-mentioned rotor core (3) is soft-magnetic composite material, and measure-alike.
6. according to the rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator described in claim 1,2 or 3, it is characterized in that: said stator (1) unshakable in one's determination is soft-magnetic composite material, and measure-alike.
7. according to the rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator described in claim 1,2 or 3, it is characterized in that: permanent magnet (2) material is neodymium iron boron.
8. according to the rotor magneticfocusing transverse flux permanent-magnet disk type wind-mill generator described in claim 1,2 or 3, it is characterized in that: stator integral body and the rotor integral position of generator can exchange, and form the version of external rotor, internal stator.
CN201410007606.8A 2014-01-08 2014-01-08 Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator Pending CN103762758A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377917A (en) * 2014-12-10 2015-02-25 哈尔滨工业大学 Radial-axial magnetic field electromagnetic planetary gear power divider
CN105356701A (en) * 2015-11-11 2016-02-24 南京理工大学 Radial-distribution three phase disk type transverse flux permanently-magnetic generator
CN105406669A (en) * 2015-12-25 2016-03-16 华中科技大学 Multi-air-gap axial magnetic flow-magnetic field modulation permanent magnet motor
CN108370178A (en) * 2015-12-03 2018-08-03 三菱电机株式会社 Axial-gap rotary electric machine and its manufacturing method
CN108574386A (en) * 2018-04-11 2018-09-25 东南大学 A kind of novel magneticfocusing disc type electric machine
TWI644501B (en) * 2017-06-09 2018-12-11 宇生自然能源科技股份有限公司 Magnetic pole displacement power generation device with magnetic gap
CN110224563A (en) * 2019-05-29 2019-09-10 南京航空航天大学 Three-phase magneticfocusing sided passive rotor transverse flux permanent magnetic motor
CN111602318A (en) * 2017-11-17 2020-08-28 吉凯恩粉末冶金工程有限公司 Rotor for axial flux motor, radial flux motor and transverse flux motor
CN113556020A (en) * 2021-07-16 2021-10-26 南京信息工程大学 Back-to-back omega-shaped stator transverse flux permanent magnet linear motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214809A (en) * 1995-03-21 1999-04-21 宗德能源系统公司 Double-salient permanent-magnet machine
CN101694955A (en) * 2009-10-15 2010-04-14 北京邮电大学 Transverse flux permanent magnetic motor and method for manufacturing stator thereof
CN102820756A (en) * 2012-08-27 2012-12-12 西北工业大学 Disc type three-phase magnetic gathering type transverse magnetic field permanent magnet motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214809A (en) * 1995-03-21 1999-04-21 宗德能源系统公司 Double-salient permanent-magnet machine
CN101694955A (en) * 2009-10-15 2010-04-14 北京邮电大学 Transverse flux permanent magnetic motor and method for manufacturing stator thereof
CN102820756A (en) * 2012-08-27 2012-12-12 西北工业大学 Disc type three-phase magnetic gathering type transverse magnetic field permanent magnet motor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377917A (en) * 2014-12-10 2015-02-25 哈尔滨工业大学 Radial-axial magnetic field electromagnetic planetary gear power divider
CN105356701A (en) * 2015-11-11 2016-02-24 南京理工大学 Radial-distribution three phase disk type transverse flux permanently-magnetic generator
CN105356701B (en) * 2015-11-11 2017-08-29 南京理工大学 Radial distribution three-phase disc type transverse flux permanent-magnet generator
CN108370178B (en) * 2015-12-03 2021-12-03 三菱电机株式会社 Axial gap type rotating electric machine and method for manufacturing same
CN108370178A (en) * 2015-12-03 2018-08-03 三菱电机株式会社 Axial-gap rotary electric machine and its manufacturing method
CN105406669B (en) * 2015-12-25 2017-09-26 华中科技大学 A kind of axial flux field modulation magneto of many air gaps
CN105406669A (en) * 2015-12-25 2016-03-16 华中科技大学 Multi-air-gap axial magnetic flow-magnetic field modulation permanent magnet motor
TWI644501B (en) * 2017-06-09 2018-12-11 宇生自然能源科技股份有限公司 Magnetic pole displacement power generation device with magnetic gap
CN111602318A (en) * 2017-11-17 2020-08-28 吉凯恩粉末冶金工程有限公司 Rotor for axial flux motor, radial flux motor and transverse flux motor
CN108574386A (en) * 2018-04-11 2018-09-25 东南大学 A kind of novel magneticfocusing disc type electric machine
CN110224563A (en) * 2019-05-29 2019-09-10 南京航空航天大学 Three-phase magneticfocusing sided passive rotor transverse flux permanent magnetic motor
CN113556020A (en) * 2021-07-16 2021-10-26 南京信息工程大学 Back-to-back omega-shaped stator transverse flux permanent magnet linear motor
CN113556020B (en) * 2021-07-16 2022-04-15 南京信息工程大学 Back-to-back omega-shaped stator transverse flux permanent magnet linear motor

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Application publication date: 20140430