CN106787547B - Axial magnetic flux two-phase doubly salient permanent magnet motor - Google Patents
Axial magnetic flux two-phase doubly salient permanent magnet motor Download PDFInfo
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- CN106787547B CN106787547B CN201710111939.9A CN201710111939A CN106787547B CN 106787547 B CN106787547 B CN 106787547B CN 201710111939 A CN201710111939 A CN 201710111939A CN 106787547 B CN106787547 B CN 106787547B
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- salient poles
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- permanent magnet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- 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
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K1/17—Stator cores with permanent magnets
-
- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/246—Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses an axial magnetic flux two-phase doubly salient permanent magnet motor, which aims to solve the technical problems that: the motor system aims at the defects that the existing motor system in the background art is too complex in structure and large in energy consumption. The technical scheme is as follows: an axial magnetic flux two-phase doubly salient permanent magnet motor comprises a stator sleeve, a stator disc A, a stator salient pole A, an armature winding A, a permanent magnet ring, an armature winding B, a stator salient pole B, a rotating shaft, a rotor core and a stator disc B. The axial magnetic flux two-phase doubly salient permanent magnet motor has high efficiency, high power density and simple and novel structure.
Description
Technical Field
The invention relates to a motor, in particular to an axial magnetic flux two-phase doubly salient permanent magnet motor, and belongs to the technical field of motors.
Background
The doubly salient motor is a motor with a novel structure proposed in the 50 s of the 20 th century, is widely concerned and deeply researched by people after the 90 s, has the advantages of simple and firm structure, convenience in manufacture, reliability in work and easiness in maintenance, and has a good application prospect in wind power generation occasions.
The doubly salient motor belongs to a variable reluctance motor, the variable reluctance motor comprises a single-side salient pole and a double-side salient pole, and in order to obtain the ratio of the maximum magnetic resistance to the minimum magnetic resistance and better electromechanical energy conversion characteristics, the doubly salient motor is favored by researchers. In a typical variable reluctance motor, magnetic fluxes are concentrated on a path having a small magnetic reluctance due to the difference in magnetic reluctance, and when the motor is operated, an energized stator winding attracts a ferromagnetic rotor by magnetic force, so that the magnetic force generates a tangential component force, that is, a torque to the rotor. The stator is electrified according to the phase stator which is most beneficial to generating forward rotation torque to the rotor and corresponds to the rotor position detected by the position sensor, and the next phase which is most beneficial to generating the torque by the rotor is electrified after the rotor rotates a certain angle. The control system continuously changes the electrified phase sequence of the stator winding to enable the rotor to continuously rotate towards one direction.
The variable reluctance motor comprises a switched reluctance motor, a stepping motor and a double salient motor, and the double salient motor comprises a permanent magnet double salient motor, an electro-magnetic double salient motor, a magnetic flux reverse double salient motor and a magnetic flux switching double salient motor. A Switched Reluctance Motor (SRM), which is different from a stepping motor, is a self-synchronizing motor with position feedback, and the rotation speed thereof is determined by the driving torque of the motor and the resisting torque of the load. The stepping motor is operated in an open loop, the rotation speed of which is determined by the pulse frequency. The switched reluctance motor has a simple rotor structure, the rotor is formed by laminating and pressing silicon steel sheets, and the rotor is not provided with coils and magnetic steel, so that the switched reluctance motor is suitable for working at high temperature and high rotating speed, and the tilting force research in the field of aeroelectricity is obtained.
In order to avoid potential faults caused by defects of the switched reluctance motor during working, scientific researchers install permanent magnets in the switched reluctance motor structure to form a double-salient permanent magnet motor (DSPM). When the pole arc length of the stator and the rotor meets a certain relation, the total air gap flux guide of the double-salient-pole motor is a constant value, and at the moment, the working point of the permanent magnet does not change along with the rotation of the rotor, so that the double-salient-pole motor does not have positioning moment when being static, and the interlinkage flux on the winding of the double-salient-pole motor is only in direct proportion to the flux guide. The stator of the doubly salient motor is internally provided with the permanent magnet with high coercivity and low magnetic conductivity, so that the magnetic circuit of the doubly salient motor has large magnetic resistance and smaller winding inductance, and current commutation can be quickly completed. In addition, when the double-salient-pole motor works, the magnetic linkage and the magnetomotive force generated by the armature reaction are far smaller than those generated by the permanent magnet, so that the synthetic magnetic linkage is mainly determined by the permanent magnet. The armature reaction of the switched reluctance motor is completely determined by the armature current, and the winding current of the switched reluctance motor is far larger than that of the doubly salient permanent magnet motor, so that the doubly salient permanent magnet motor generates less heat and noise when working.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the motor system aims at the defects that the existing motor system in the background art is too complex in structure and large in energy consumption.
The invention aims to provide a novel axial magnetic flux two-phase doubly salient permanent magnet motor which has high efficiency, high power density and simple structure.
In order to solve the technical problems, the invention adopts the technical scheme that:
an axial magnetic flux two-phase doubly salient permanent magnet motor comprises a stator sleeve, a stator disc A, a stator salient pole A, an armature winding A, a permanent magnet ring, an armature winding B, a stator salient pole B, a rotating shaft, a rotor core and a stator disc B;
the magnetizing direction of the permanent magnet ring is axial magnetizing, the permanent magnet ring is embedded in the stator sleeve, and the permanent magnet ring is positioned in the middle of the axial length of the stator sleeve and divides the stator sleeve into an upper stator sleeve and a lower stator sleeve;
the stator disc A and the stator disc B are respectively arranged at two ends of the stator sleeve and positioned in the stator sleeve, and the stator disc A, the stator disc B and the stator sleeve form a rotor cavity;
four sector stator salient poles A are protruded on the plane of the stator disc A facing the rotor cavity, and armature windings A are arranged on the four sector stator salient poles A;
four sector stator salient poles B are protruded on the plane of the stator disc B facing the rotor cavity, and armature windings B are arranged on the four sector stator salient poles B;
the upper and lower positions of the four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B are all arranged in a one-to-one correspondence manner;
the rotor iron core is arranged on the rotating shaft and is positioned in the rotor cavity; the rotor iron core comprises a ring sleeve which is sleeved on the rotating shaft and rotates along with the rotating shaft, and three fan-shaped rotor salient poles are uniformly and convexly arranged on the outer surface of the ring sleeve along the radial direction; the three fan-shaped rotor salient poles are positioned between the four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B, a first air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles A, and a second air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles B;
the four fan-shaped stator salient poles A, the four fan-shaped stator salient poles B and the three fan-shaped rotor salient poles have the same fan-shaped angle, large diameter and small diameter.
The invention relates to an axial magnetic flux two-phase doubly salient permanent magnet motor, wherein two opposite windings in an armature winding A form one phase, two opposite windings in an armature winding B form one phase, and the opposite windings of the armature winding A and the armature winding B form one phase.
The axial magnetic flux two-phase doubly salient permanent magnet motor has the advantages that the number of salient poles of a rotor core is at least 3, and the axial magnetic flux two-phase doubly salient permanent magnet motor is lower than that of the conventional technical scheme, so that the iron loss is reduced, and the burden of a controller is lightened.
The improvement of the technical scheme of the invention is that the small diameter of the sector stator salient pole A is the same as the radius of the inner circular hole of the stator disc A, and the small diameter of the sector stator salient pole B is the same as the radius of the inner circular hole of the stator disc B.
In the improvement of the technical scheme of the invention, the first air gap and the second air gap are equal, so that the whole motor has an up-and-down symmetrical structure.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the axial magnetic flux two-phase doubly salient permanent magnet motor has high efficiency, high power density and simple and novel structure.
2. The axial magnetic flux two-phase doubly salient permanent magnet motor adopts the permanent magnets to establish the excitation magnetic field, can reduce the copper consumption of the motor, and improves the efficiency of the motor.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Fig. 2 is a schematic view of the installation position of the rotor core and the rotating shaft.
Fig. 3 is a schematic structural view of the stator salient poles a.
Wherein, 1, stator sleeve; 2. a stator disc A; 3. stator salient poles A; 31. a sector stator salient pole A; 4. an armature winding A; 5. a permanent magnet ring; 6. an armature winding B; 7. stator salient pole B; 8. a rotating shaft; 9. a rotor core; 91. sleeving a ring; 92. Salient pole of sector rotor; 10. stator disk B.
Detailed Description
In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 3 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the axial-flux two-phase doubly salient permanent magnet motor of the present invention includes a stator sleeve 1, a stator disc a2, a stator salient pole A3, an armature winding a4, a permanent magnet ring 5, an armature winding B6, a stator salient pole B7, a rotating shaft 8, a rotor core 9, and a stator disc B10.
The stator salient poles A3 are formed of four fan-shaped stator salient poles a31 (see fig. 3), and the stator salient poles B7 are formed of four fan-shaped stator salient poles B.
The magnetizing direction of the permanent magnet ring 5 is axial magnetizing, the permanent magnet ring 5 is embedded in the stator sleeve 1, and the permanent magnet ring is located in the middle of the axial length of the stator sleeve and divides the stator sleeve into an upper stator sleeve and a lower stator sleeve.
The stator disc A2 and the stator disc B10 are respectively arranged at two ends of the stator sleeve and are positioned inside the stator sleeve, and the stator disc A2, the stator disc B10 and the stator sleeve 1 form a rotor cavity.
Four fan-shaped stator salient poles A are protruded on the plane of the stator disc A2 facing the rotor cavity, and armature windings A4 are arranged on the four fan-shaped stator salient poles A; four fan-shaped stator salient poles B are protruded on the plane of the stator disc B10 facing the rotor cavity, and armature windings B6 are arranged on the four fan-shaped stator salient poles B.
The four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B are arranged in a one-to-one correspondence manner at the upper and lower positions.
The rotor iron core 9 is arranged on the rotating shaft 8 and is positioned in the rotor cavity; the rotor iron core comprises a ring sleeve 91 which is sleeved on the rotating shaft and rotates along with the rotating shaft, and three fan-shaped rotor salient poles 92 are uniformly and convexly arranged on the outer surface of the ring sleeve along the radial direction; the three fan-shaped rotor salient poles are positioned between the four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B, a first air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles A, and a second air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles B; see fig. 2 for a schematic illustration.
The four fan-shaped stator salient poles A, the four fan-shaped stator salient poles B and the three fan-shaped rotor salient poles have the same fan-shaped angle, large diameter and small diameter.
In the axial magnetic flux two-phase doubly salient permanent magnet motor, an axially magnetized permanent magnet ring 5 is embedded in the middle position of a stator sleeve 1 to provide an excitation magnetic field for the motor; the armature winding A4 and the armature winding B6 are respectively wound on the stator salient pole A3 and the stator salient pole B7, the motor is connected with an electric load when the motor is used for generating electricity, and the motor is connected with a power supply when the motor is used for electrically running.
Two opposite windings in the armature winding A4 form one phase, two opposite windings in the armature winding B6 form one phase, and the windings opposite to the armature winding A4 and the armature winding B6 form one phase, so that the whole motor has two-phase windings.
The working principle of the embodiment is as follows:
when the generator operates as a generator, the prime motor drives the rotating shaft 8 and the rotor core 9 to rotate, and due to the existence of the rotor core salient poles on the rotor core 9, the rotor core 9 can cause the magnetic flux of the motor armature winding A4 and the armature winding B6 to change when rotating, so that electromotive force is induced in the motor armature winding A4 and the armature winding B6, and the magnitude of the induced electromotive force is related to the rotating speed of the rotor.
When the invention is used as a motor, the two-phase winding composed of the armature winding A4 and the armature winding B6 is electrified with forward or reverse current according to the position of the rotor core 9, so that torque can be generated, and the phase difference of the two-phase current is 90 degrees.
The parts not involved in the invention are all communicated with or realized by the prior art.
Where not otherwise indicated herein or enabled by the prior art, it will be appreciated that modifications and variations may be resorted to without departing from the scope of the invention as set forth in the appended claims.
Claims (3)
1. The utility model provides a two-phase biconvex utmost point permanent-magnet machine of axial magnetic flux which characterized in that: the permanent magnet synchronous motor comprises a stator sleeve, a stator disc A, a stator salient pole A, an armature winding A, a permanent magnet ring, an armature winding B, a stator salient pole B, a rotating shaft, a rotor core and a stator disc B;
the magnetizing direction of the permanent magnet ring is axial magnetizing, the permanent magnet ring is embedded in the stator sleeve, and the permanent magnet ring is positioned in the middle of the axial length of the stator sleeve and divides the stator sleeve into an upper stator sleeve and a lower stator sleeve;
the stator disc A and the stator disc B are respectively arranged at two ends of the stator sleeve and positioned in the stator sleeve, and the stator disc A, the stator disc B and the stator sleeve form a rotor cavity;
four sector stator salient poles A are protruded on the plane of the stator disc A facing the rotor cavity, and armature windings A are arranged on the four sector stator salient poles A;
four sector stator salient poles B are protruded on the plane of the stator disc B facing the rotor cavity, and armature windings B are arranged on the four sector stator salient poles B;
the upper and lower positions of the four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B are all arranged in a one-to-one correspondence manner;
the rotor iron core is arranged on the rotating shaft and is positioned in the rotor cavity; the rotor iron core comprises a ring sleeve which is sleeved on the rotating shaft and rotates along with the rotating shaft, and three fan-shaped rotor salient poles are uniformly and convexly arranged on the outer surface of the ring sleeve along the radial direction; the three fan-shaped rotor salient poles are positioned between the four fan-shaped stator salient poles A and the four fan-shaped stator salient poles B, a first air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles A, and a second air gap is reserved between the three fan-shaped rotor salient poles and the four fan-shaped stator salient poles B;
the four fan-shaped stator salient poles A, the four fan-shaped stator salient poles B and the three fan-shaped rotor salient poles have the same fan-shaped angle, large diameter and small diameter.
2. The axial flux two-phase doubly salient permanent magnet machine of claim 1, wherein: the small diameter of the sector stator salient pole A is the same as the radius of the inner circular hole of the stator disc A, and the small diameter of the sector stator salient pole B is the same as the radius of the inner circular hole of the stator disc B.
3. The axial flux two-phase doubly salient permanent magnet machine of claim 1, wherein: the first air gap is equal to the second air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111939.9A CN106787547B (en) | 2017-02-28 | 2017-02-28 | Axial magnetic flux two-phase doubly salient permanent magnet motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111939.9A CN106787547B (en) | 2017-02-28 | 2017-02-28 | Axial magnetic flux two-phase doubly salient permanent magnet motor |
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| Publication Number | Publication Date |
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| CN106787547A CN106787547A (en) | 2017-05-31 |
| CN106787547B true CN106787547B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710111939.9A Active CN106787547B (en) | 2017-02-28 | 2017-02-28 | Axial magnetic flux two-phase doubly salient permanent magnet motor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846123B (en) * | 2017-10-23 | 2019-12-06 | 南京秦淮紫云创益企业服务有限公司 | Exhaust turbine driven reluctance machine |
| CN108448755A (en) * | 2018-04-11 | 2018-08-24 | 南京工业大学 | A kind of axial magnetic flux two-phase electric excitation biconvex electrode electric machine |
| CN110518765B (en) * | 2019-08-30 | 2021-08-24 | 沈阳工业大学 | Claw-shaped stator yoke part embedded permanent magnet auxiliary double-rotor axial double-salient-pole motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041974Y (en) * | 2007-02-07 | 2008-03-26 | 熊巨藩 | A dual protrusion pole axial magnetic field permanent magnetic electromotor |
| CN102761216A (en) * | 2012-07-23 | 2012-10-31 | 徐宁 | Electrical excitation generator with winding-free rotor |
| CN103615465A (en) * | 2013-11-29 | 2014-03-05 | 南京工业大学 | Novel permanent magnet biased axial magnetic levitation bearing |
| CN105245073A (en) * | 2015-11-16 | 2016-01-13 | 南京理工大学 | Stator permanent-magnetic doubly salient disc-type motor |
-
2017
- 2017-02-28 CN CN201710111939.9A patent/CN106787547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041974Y (en) * | 2007-02-07 | 2008-03-26 | 熊巨藩 | A dual protrusion pole axial magnetic field permanent magnetic electromotor |
| CN102761216A (en) * | 2012-07-23 | 2012-10-31 | 徐宁 | Electrical excitation generator with winding-free rotor |
| CN103615465A (en) * | 2013-11-29 | 2014-03-05 | 南京工业大学 | Novel permanent magnet biased axial magnetic levitation bearing |
| CN105245073A (en) * | 2015-11-16 | 2016-01-13 | 南京理工大学 | Stator permanent-magnetic doubly salient disc-type motor |
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Effective date of registration: 20221226 Address after: Room 801, Building 8, South Shuangpu Road, Qiaolin District, Pukou District, Nanjing, Jiangsu 210,000 Patentee after: Nanjing Lichuang Intelligent Equipment Co.,Ltd. Address before: 210009, 5 new model street, Gulou District, Jiangsu, Nanjing Patentee before: NANJING University OF TECHNOLOGY |