CN111884460B - Axial magnetic flux hybrid excitation memory motor - Google Patents
Axial magnetic flux hybrid excitation memory motor Download PDFInfo
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- CN111884460B CN111884460B CN202010704524.4A CN202010704524A CN111884460B CN 111884460 B CN111884460 B CN 111884460B CN 202010704524 A CN202010704524 A CN 202010704524A CN 111884460 B CN111884460 B CN 111884460B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
- H02K21/042—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention discloses an axial magnetic flux mixed excitation memory motor, which comprises a stator disc and a rotor disc with a Halbach structure, wherein the stator disc consists of a stator core and a three-phase armature winding, the stator core comprises a stator yoke and stator teeth, a stator slot is formed between every two adjacent stator teeth, and the three-phase armature winding is wound on the stator teeth; the rotor disc meets a Halbach composite array, the outer side of the rotor disc consists of a plurality of AlNiCo permanent magnets and a plurality of pulse excitation windings which are mutually connected in series, the magnetizing directions of two adjacent AlNiCo permanent magnets are opposite, soft magnetic materials are arranged between every two AlNiCo permanent magnets, and the pulse excitation windings are wound on the AlNiCo permanent magnets; the Nd-Fe-B permanent magnets are attached to the inner side of the rotor disc at a certain angle, and the magnetizing directions of the two adjacent Nd-Fe-B permanent magnets are opposite. The invention has compact structure, can realize the flexible adjustment of the air gap magnetic field of the motor, and has wider speed regulation range and low-speed and high-torque performance.
Description
Technical Field
The invention relates to an axial magnetic flux hybrid excitation memory motor, and belongs to the technical field of motors.
Background
In recent years, with the continuous progress of science and technology, the performance of the permanent magnet made of rare earth is continuously improved, and the permanent magnet motor is widely applied to various fields such as aviation, aerospace, automobiles and the like because of the great pursuit of high efficiency and high power density. In real life, the structure of the permanent magnet motor is not single, and among various permanent magnet motors, the permanent magnet motor with an axial magnetic field, also called as a disc motor, has the characteristics of small volume, very compact structure and short axial size, and has very high torque density and high efficiency, thereby having more obvious advantages in some special working environments. The axial magnetic field permanent magnet motor is mainly used for motion control, and is widely applied to direct-drive occasions requiring small axial size and large enough torque.
When the permanent magnet motor is used for a driving field, when the permanent magnet motor is in a low-speed constant torque area, the air gap magnetic field is large enough, and a high internal energy index is realized. When the permanent magnet motor is in a high-speed constant-power region, the air-gap field should be reduced to be low enough to allow the motor to have a wide enough speed-regulating range. In a common permanent magnet motor, due to the inherent characteristics of permanent magnet materials such as neodymium iron boron, the air gap magnetic field of the motor is basically constant, and the application scenes of the motor are greatly limited. In order to adjust the air gap of the permanent magnet motor, a motor which realizes the air gap adjustment by changing the magnetization level of a permanent magnet is gradually welcomed, and the motor adopts a new permanent magnet material, namely alnico, which has the characteristics of high remanence, low coercive force and the like. The magnetization state of the air gap magnetic field can be changed instantly by applying pulse current to the air gap magnetic field, and the magnetization level of the air gap magnetic field can be memorized at the same time, so that the air gap magnetic field can be flexibly adjusted. The air gap field regulation mode hardly generates electric excitation loss, does not sacrifice other performance indexes of the motor, and can be regarded as a simple and efficient magnetic regulation scheme.
In the research summary and the latest development of memory motors, linnaeus, et al, university of southeast, the axial magnetic field and magnetic flux switching type surface-mounted permanent magnet memory motor is provided, the motor can control the adjustment of an air gap magnetic field by adding different currents to a single-phase pulse winding, and the motor has the advantages of high sine degree of counter electromotive force, small positioning moment and torque pulsation, high power density, high fault tolerance and the like.
In order to obtain a hybrid permanent magnet memory motor with higher power density, controllable magnetic flux and excellent heat dissipation performance, the Chinese patent publication No. CN206237285U, entitled Halbach magnetism-gathering type axial magnetic field hybrid permanent magnet motor, adopts a motor structure with double stators and single rotor, but adopts a double-stator structure, so that the motor structure is more complex, and the whole motor is not compact enough.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an axial magnetic flux hybrid excitation memory motor so as to obtain a permanent magnet memory motor with high power density, adjustable magnetism, light weight, small size and excellent heat dissipation performance.
The invention specifically adopts the following technical scheme to solve the technical problems:
an axial magnetic flux mixed excitation memory motor comprises a stator disc and a rotor disc of a Halbach structure, wherein a unilateral air gap structure is formed between the stator disc and the rotor disc and is coaxially arranged on a mounting shaft, the mounting shaft is fixed on a shell of the motor through a bearing, the stator disc consists of a stator core and a three-phase armature winding, the stator core comprises a stator yoke and stator teeth, a stator slot is formed between every two adjacent stator teeth, and the three-phase armature winding is wound on the stator teeth; the rotor disc meets a Halbach composite array, the outer side of the rotor disc consists of a plurality of AlNiCo permanent magnets and a plurality of pulse excitation windings which are mutually connected in series, the magnetizing directions of two adjacent AlNiCo permanent magnets are opposite, soft magnetic materials are arranged between every two AlNiCo permanent magnets, and the pulse excitation windings are wound on the AlNiCo permanent magnets; the Nd-Fe-B permanent magnets are attached to the inner side of the rotor disc at a certain angle, and the magnetizing directions of the two adjacent Nd-Fe-B permanent magnets are opposite.
Further, as a preferable technical solution of the present invention: the number of the neodymium iron boron permanent magnets on the rotor disc, the number of the alnico permanent magnets and the number of the stator teeth on the stator disc are equal and are integral multiples of 6.
Further, as a preferred technical solution of the present invention: the number of the neodymium iron boron permanent magnets, the number of the alnico permanent magnets and the number of the stator teeth are all 6.
Further, as a preferred technical solution of the present invention: the neodymium iron boron permanent magnet body surface is pasted on the surface of the soft magnetic material, the aluminum nickel cobalt permanent magnet and the soft magnetic material are spliced into a rotor ring, and the center of the neodymium iron boron permanent magnet is aligned with the center of the stator tooth.
Further, as a preferred technical solution of the present invention: two three-phase armature winding coils with 180-degree phase difference form a single phase in a series connection mode, and the three phases are totally combined; all pulse excitation windings are connected in series, and direct current pulses are introduced to adjust magnetism.
Further, as a preferred technical solution of the present invention: the stator yoke and the stator teeth are formed by laminating cold-rolled non-oriented silicon steel sheets.
Further, as a preferable technical solution of the present invention: the rotor disc comprises a non-magnetic conductive circular ring, 6 rotor core teeth which are arranged along the circumferential direction of the non-magnetic conductive circular ring at equal intervals, and 6 neodymium iron boron permanent magnets and aluminum nickel cobalt permanent magnets which are arranged inside and outside at equal intervals.
Further, as a preferred technical solution of the present invention: the three-phase armature winding and the pulse excitation winding are both concentrated windings.
Further, as a preferable technical solution of the present invention: the neodymium iron boron permanent magnet, the alnico permanent magnet and the rotor iron core teeth are all fan-shaped.
Further, as a preferred technical solution of the present invention: the neodymium iron boron permanent magnet is axially magnetized, and the aluminum nickel cobalt permanent magnet is circumferentially magnetized to form a Halbach structure.
By adopting the technical scheme, the invention can produce the following technical effects:
1. the invention not only has the characteristics of a disk type permanent magnet motor and a memory motor, but also has the advantages of a Halbach type motor, wherein the motor comprises a stator disk and a rotor disk, a neodymium iron boron permanent magnet and an alnico permanent magnet are simultaneously arranged on the rotor disk, an excitation winding is wound on the alnico permanent magnet, the magnetic regulation mode is pulse magnetic regulation, and the magnetization state of the alnico permanent magnet is regulated by controlling the magnitude and the direction of pulse current so as to regulate the air gap magnetic field of the permanent magnet motor; the motor has the advantages of a memory motor, and simultaneously still has the advantages of compact structure and small magnetic flux leakage of the disc type permanent magnet motor.
2. The stator disc is free of the permanent magnet, so that the stator disc is simpler in structure and lighter in weight, and meanwhile, the stator and the soft magnet are made of cold-rolled non-oriented silicon steel sheet materials, so that the eddy current effect and the magnetic leakage are reduced, and the manufacturing cost of the motor is reduced.
3. The excitation mode of the invention is a self-excitation mode, and the DC power supply and the pulse generator are added on the rotor disc to adjust the magnetism, thereby improving the working efficiency of the permanent magnet motor.
4. The main excitation source of the invention is two types of permanent magnets of neodymium iron boron permanent magnet and alnico permanent magnet, the speed regulation range of the motor can be determined by controlling the dosage relation of the two types of permanent magnet materials, the magnetization intensity and the working point of the alnico permanent magnet can be controlled by controlling the magnitude of the pulse current, and the air gap field of the motor can be flexibly adjusted, so that the motor has wider speed regulation range and low-speed and high-torque performance.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of an axial flux hybrid excitation memory motor of the invention.
Fig. 2(a) is a schematic view of an inner structure of a rotor disk of the present invention, and fig. 2(b) is a schematic view of an outer structure of a stator disk of the present invention.
Fig. 3(a) is a schematic view of an outer side structure of a rotor disk of the present invention, and fig. 3(b) is a schematic view of an inner side structure of a stator disk of the present invention.
Fig. 4 is a schematic view of the magnetizing circuit of the present invention.
Fig. 5 is a schematic view of the demagnetization circuit of the present invention.
In the figure: 1. rotor core teeth; 2. a stator yoke; 2.1, stator teeth; 2.2, stator slots; 3.1, three-phase armature windings; 3.2, pulse excitation winding; 4. an alnico permanent magnet; 4.1, circumferentially magnetizing the alnico permanent magnet clockwise; 4.2, circumferentially magnetizing the alnico permanent magnet in the anticlockwise direction; 5. a neodymium iron boron permanent magnet; 5.1, 5.3, and a neodymium iron boron permanent magnet which is axially magnetized inwards and is vertical to the paper surface; 5.2, a neodymium iron boron permanent magnet axially magnetized outwards perpendicular to the paper surface; 6. a non-magnetic conductive ring.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the invention designs an axial magnetic flux hybrid excitation memory motor, which comprises a stator disc and a rotor disc with a Halbach structure, wherein a unilateral air gap structure is formed between the stator disc and the rotor disc and is coaxially arranged on a mounting shaft, the mounting shaft is fixed on a shell of the motor through a bearing, the stator disc is composed of a stator core and a three-phase armature winding 3.1, meanwhile, the stator core comprises a stator yoke 2 and stator teeth 2.1, a stator slot 2.2 is formed between 2.1 of two adjacent stator teeth, the three-phase armature winding 3.1 is wound on the stator teeth 2.1, and the outer side and inner side structures of the three-phase armature winding are shown in fig. 2(b) and fig. 3 (a); the rotor disc meets a Halbach composite array structure, the outer side of the rotor disc is composed of a plurality of AlNiCo permanent magnets 4 and a plurality of pulse excitation windings 3.2 which are mutually connected in series, the magnetizing directions of two adjacent AlNiCo permanent magnets 4 are opposite, soft magnetic materials are arranged between every two AlNiCo permanent magnets 4, and the pulse excitation windings 3.2 are wound on the AlNiCo permanent magnets 4; the Nd-Fe-B permanent magnets 5 are attached to the inner side of the rotor disc at a certain angle, and the magnetizing directions of the two adjacent Nd-Fe-B permanent magnets 5 are opposite.
The number of the neodymium iron boron permanent magnets 5 and the number of the alnico permanent magnets 4 on the rotor disc are equal to the number of the stator teeth 2.1 on the stator disc, and the numbers are integral multiples of 6, and the number of the permanent magnets is preferably 6 in the embodiment. And the surface of the neodymium iron boron permanent magnet 5 is pasted on the surface of the soft magnetic material, the alnico permanent magnet 4 and the soft magnetic material are spliced into a rotor ring, and the center of the neodymium iron boron permanent magnet 5 is aligned with the center of the stator tooth 2.1.
The stator disc is only composed of the stator core and the armature winding, and the stator disc is simple in structure and easy to machine due to the fact that the permanent magnet is not arranged on the stator disc. Two differ by 180 。 The three-phase armature winding coils form a single phase in a series connection mode, and the total number of the three phases is three.
The rotor disc is designed according to a Halbach composite array, the outer side of the rotor disc is composed of 6 circumferentially magnetized AlNiCo permanent magnets and a plurality of pulse excitation windings, 3.2 groups of pulse excitation windings are wound on the AlNiCo permanent magnets 4, the magnetizing directions of two adjacent AlNiCo permanent magnets 4 are opposite, and as shown in figure 2(a), two adjacent AlNiCo permanent magnets 4.1 circumferentially magnetized in the clockwise direction and 4.2 circumferentially magnetized in the counterclockwise direction are arranged. The inside is then the surface pastes 6 neodymium iron boron permanent magnet 5 apart from certain angle, and neodymium iron boron permanent magnet 5 adopts the axial to magnetize, and the direction of magnetizing of arbitrary two adjacent neodymium iron boron permanent magnet is opposite, as shown in fig. 2(a), includes that two perpendicular paper faces magnetize neodymium iron boron permanent magnet 5.1, 5.3 to the axial inwards, and perpendicular paper faces magnetize neodymium iron boron permanent magnet 5.2 to the outside axial.
The permanent magnet on the rotor disc is of a surface-mounted structure, the permanent magnet is bonded on the surface of the disc through the anaerobic adhesive, so that the manufacturing cost can be reduced, magnetic leakage can be further reduced, the utilization rate of the permanent magnet is greatly improved, the heat dissipation of the permanent magnet is facilitated through the mode, and the operating efficiency of the permanent magnet motor is improved.
The axial magnetic flux hybrid excitation memory motor is a single-stator single-rotor motor, neodymium iron boron permanent magnets 5 on a rotor disc are pasted on the inner side of the rotor according to a certain interval, and an aluminum nickel cobalt permanent magnet 4 magnetized in the circumferential direction is arranged between every two adjacent neodymium iron boron permanent magnets 5. All pulse excitation windings adopt a series connection mode, and the magnetic field is adjusted in a mode of introducing direct current pulses.
The stator yoke 2 and the stator teeth 2.1 are formed by laminating cold-rolled non-oriented silicon steel sheets, so that the eddy current effect, the magnetic leakage and the manufacturing cost can be reduced.
Preferably, as shown in fig. 3(b), the rotor disk includes one non-magnetic conductive ring 6, 6 rotor core teeth 1 arranged at equal intervals along the circumferential direction of the non-magnetic conductive ring, and 6 inside and outside ndfeb permanent magnets and alnico permanent magnets arranged at equal intervals. The rotor iron core teeth are formed by rotor disks, the rotor iron core teeth 1 and the alnico permanent magnets 4 are arranged at equal intervals along the circumferential direction of the non-magnetic conductive ring 6 and are fixed by anaerobic adhesive and bolts, and the non-magnetic conductive ring 6 is made of heat-resistant polyurethane plastic materials.
The three-phase armature winding 3.1 and the excitation winding 3.2 are both concentrated windings, and 6 armature windings 3.1 are connected in series by two coils separated by 180 degrees, so that 3 three-phase alternating currents are output. All the excitation windings 3.2 adopt a series connection mode, and the magnetic field is adjusted in a mode of introducing direct current pulses.
And the neodymium iron boron permanent magnet 5, the alnico permanent magnet 4 and the rotor iron core teeth 1 are all fan-shaped. The neodymium iron boron permanent magnet 5 adopts an axial magnetization mode, and the aluminum nickel cobalt permanent magnet 4 adopts a circumferential magnetization mode to jointly form a Halbach structure, so that the Halbach structure has a magnetism gathering effect.
The working principle of the axial magnetic flux hybrid excitation memory motor is as follows:
as shown in fig. 4, when the motor needs to improve the output power to operate, by applying a positive rated direct current pulse magnetizing current to the pulse excitation winding, the alnico permanent magnet has and keeps a circumferential magnetization level, the ndfeb permanent magnet on the rotor disc generates a constant axial magnetic field, and forms a Halbach magnetic collection structure with the circumferential magnetic field of the alnico permanent magnet outside the rotor disc; at the moment, magnetic lines of force start from the alnico permanent magnet, pass through the rotor iron core teeth, the neodymium iron boron permanent magnet and the air gap, and reach the three-phase armature winding on the stator disc, so that a maximum air gap magnetic field is generated.
As shown in fig. 5, when the motor operates with reduced output power, a reverse rated dc pulse magnetizing current is applied through the pulse excitation winding, so as to reduce the circumferential magnetization level of the alnico permanent magnet and reduce the magnetic flux generated by the alnico permanent magnet, and at this time, the air-gap magnetic flux is generated only by the circumferential magnetic field of the ndfeb permanent magnet, thereby reducing the air-gap magnetic field. Therefore, the magnitude of the air gap magnetic field can be adjusted by applying direct current pulse magnetizing currents with different degrees, the loss of the motor is small, and the weak magnetic capacity and the constant-power operation efficiency of the motor can be improved.
The Halbach type magnetic-gathering motor not only has the characteristics of a disc type permanent magnet motor and a memory motor, but also has the advantages of the Halbach type magnetic-gathering motor, and comprises a stator disc and a rotor disc, wherein a three-phase armature winding is wound on the stator disc, and the rotor disc is composed of an AlNiCo permanent magnet, an NdFeB permanent magnet and a pulse excitation winding wound on the AlNiCo permanent magnet; meanwhile, the stator disc is not provided with the permanent magnet, so that the stator disc is simpler in structure and lighter in weight, and meanwhile, the stator and the soft magnet are both made of cold-rolled non-oriented silicon steel sheet materials, so that the eddy current effect and the magnetic leakage are reduced, and the manufacturing cost of the motor is reduced; the excitation mode of the motor is a self-excitation mode, and the DC power supply and the pulse generator are added on the rotor disc to adjust the magnetism, so that the working efficiency of the permanent magnet motor is improved; the main excitation source of the motor is two types of permanent magnets, namely a neodymium iron boron permanent magnet and an alnico permanent magnet, the speed regulation range of the motor can be determined by controlling the dosage relation of the two types of permanent magnet materials, and the magnetization intensity and the working point of the alnico permanent magnet are controlled by controlling the pulse current, so that the air gap field of the motor can be flexibly adjusted, and the motor has a wider speed regulation range and has the performance of low speed and high torque.
The above description is only for the purpose of illustrating the essence of the present invention, but not for the purpose of limiting the scope of the present invention. Modifications and equivalents of the present invention may occur to those skilled in the art, and such modifications and equivalents are considered to be within the scope of the present invention.
Claims (9)
1. An axial magnetic flux mixed excitation memory motor is characterized by comprising a stator disc and a rotor disc of a Halbach structure, wherein a unilateral air gap structure is formed between the stator disc and the rotor disc and is coaxially arranged on a mounting shaft, the mounting shaft is fixed on a shell of the motor through a bearing, the stator disc consists of a stator core and a three-phase armature winding, the stator core comprises a stator yoke and stator teeth, a stator slot is formed between every two adjacent stator teeth, and the three-phase armature winding is wound on the stator teeth; the rotor disc meets a Halbach composite array, the outer side of the rotor disc consists of a plurality of AlNiCo permanent magnets and a plurality of pulse excitation windings which are mutually connected in series, the magnetizing directions of two adjacent AlNiCo permanent magnets are opposite, soft magnetic materials are arranged between every two AlNiCo permanent magnets, and the pulse excitation windings are wound on the AlNiCo permanent magnets; the Nd-Fe-B permanent magnets are attached to the inner side of the rotor disc at a certain angle, and the magnetizing directions of two adjacent Nd-Fe-B permanent magnets are opposite; the neodymium iron boron permanent magnet is attached to the surface of the soft magnetic material, the aluminum nickel cobalt permanent magnet and the soft magnetic material are spliced into a rotor ring, and the center of the neodymium iron boron permanent magnet is aligned with the center of the stator teeth.
2. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the number of the neodymium iron boron permanent magnets on the rotor disc, the number of the alnico permanent magnets on the rotor disc and the number of the stator teeth on the stator disc are equal and are integral multiples of 6.
3. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the number of the neodymium iron boron permanent magnets, the number of the alnico permanent magnets and the number of the stator teeth are all 6.
4. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: two three-phase armature winding coils with 180-degree phase difference form a single phase in a series connection mode, and the three phases are totally combined; all pulse excitation windings are connected in series, and direct current pulses are introduced to adjust magnetism.
5. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the stator yoke and the stator teeth are formed by laminating cold-rolled non-oriented silicon steel sheets.
6. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the rotor disc comprises a non-magnetic conductive circular ring, 6 rotor core teeth which are arranged along the circumferential direction of the non-magnetic conductive circular ring at equal intervals, and 6 neodymium iron boron permanent magnets and aluminum nickel cobalt permanent magnets which are arranged inside and outside at equal intervals.
7. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the three-phase armature winding and the pulse excitation winding are both concentrated windings.
8. The axial flux hybrid excitation memory motor of claim 6, wherein: the neodymium iron boron permanent magnet, the alnico permanent magnet and the rotor iron core teeth are all fan-shaped.
9. The axial flux hybrid excitation memory motor according to claim 1, characterized in that: the neodymium iron boron permanent magnet is axially magnetized, and the aluminum nickel cobalt permanent magnet is circumferentially magnetized to form a Halbach structure.
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| CN202010704524.4A CN111884460B (en) | 2020-07-21 | 2020-07-21 | Axial magnetic flux hybrid excitation memory motor |
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| CN113364176B (en) * | 2021-05-31 | 2022-09-27 | 西安理工大学 | Six-phase axial flux permanent magnet motor for pumped storage |
| CN113346678B (en) * | 2021-06-09 | 2022-06-07 | 哈尔滨理工大学 | Hybrid excitation turbogenerator with multistage axial flow-centrifugal ventilation cooling system |
| CN113300515B (en) * | 2021-06-11 | 2022-11-15 | 山东大学 | Disc type axial magnetic field permanent magnet brushless motor structure containing tangential magnet structure and method thereof |
| CN113922614B (en) * | 2021-09-16 | 2022-09-30 | 西安理工大学 | Fifteen-phase stator hybrid permanent magnet axial flux permanent magnet motor |
| CN113991957B (en) * | 2021-11-17 | 2022-12-06 | 长沙理工大学 | Single-phase double-magnetic-circuit permanent magnet motor and driving method |
| CN114498996B (en) * | 2022-02-17 | 2023-08-18 | 沈阳工业大学 | Double m-phase winding separated type asymmetric axial flux permanent magnet motor |
| CN115296500A (en) * | 2022-08-29 | 2022-11-04 | 山东大学 | Double-stator low-speed permanent magnet synchronous motor and driving method |
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| TWI388108B (en) * | 2010-05-06 | 2013-03-01 | Ind Tech Res Inst | Adjustable axial-flux thin-plate motor |
| CN105141092A (en) * | 2015-10-15 | 2015-12-09 | 东南大学 | Magnetic gear type double-stator hybrid permanent magnet memory motor |
| CN105337429B (en) * | 2015-11-09 | 2018-02-27 | 江苏大学 | A kind of hybrid excitation type stator partition type hybrid permanent magnet magnetic flux switches memory electrical machine |
| CN106357076B (en) * | 2016-09-14 | 2018-12-11 | 南京信息工程大学 | A kind of Halbach concentrated magnetic axial magnetic field hybrid permanent magnet memory electrical machine |
| CN108736602B (en) * | 2017-04-14 | 2021-05-14 | 台达电子工业股份有限公司 | Axial flux electric machine |
| CN207010497U (en) * | 2017-07-31 | 2018-02-13 | 南京信息工程大学 | A kind of axial magnetic field stator partition type magneto |
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