CN112713738A - Magnetic suspension switched reluctance motor, carrying type flywheel battery, vehicle-mounted air compressor and satellite attitude control platform - Google Patents
Magnetic suspension switched reluctance motor, carrying type flywheel battery, vehicle-mounted air compressor and satellite attitude control platform Download PDFInfo
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- CN112713738A CN112713738A CN202011567433.7A CN202011567433A CN112713738A CN 112713738 A CN112713738 A CN 112713738A CN 202011567433 A CN202011567433 A CN 202011567433A CN 112713738 A CN112713738 A CN 112713738A
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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
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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
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention provides a magnetic suspension switched reluctance motor, a carrying type flywheel battery, a vehicle-mounted air compressor and a satellite attitude control platform, wherein the magnetic suspension switched reluctance motor is of an 12/14 doubly salient structure, the stator comprises a single-winding flexible stator and a main suspension stator, and the suspension of a rotor can be supplemented and adjusted through a flexible winding on the single-winding flexible stator besides depending on the main suspension stator. Compared with the traditional magnetic suspension switched reluctance motor, the invention can make up the defect of insufficient suspension force of the magnetic suspension switched reluctance motor, reduce the volume of the motor, has higher torque density and suspension density, and has important application prospect in carrying type flywheel batteries, vehicle-mounted air compressors and satellite attitude control.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a magnetic suspension switched reluctance motor with a flexible function, which can be used as a high-speed motor, is particularly suitable for a vehicle-mounted flywheel battery auxiliary power system and an electric ship power compensation system of a new energy electric vehicle, and can also be used in a vehicle-mounted air compressor system of a hydrogen fuel electric vehicle and a satellite attitude control platform.
Background
The traditional motor generally uses a mechanical bearing to support a rotating shaft, but the development of the economic society puts forward higher and higher requirements on the rotating speed of the motor, the defects that the mechanical bearing is easy to wear and needs to be maintained regularly and the like seriously limit the further improvement of the rotating speed of the motor, and the running efficiency of the motor is reduced because a large amount of heat is generated by increasing the friction resistance. To avoid these problems, it is the best solution to replace mechanical bearings with suspension technology. The air bearing and the liquid bearing need additional pressurizing equipment, so that the volume of the equipment is increased. The magnetic suspension motor integrates the suspension functions of the traditional motor and the magnetic bearing into a whole, does not need to add equipment, aims at simultaneously generating electromagnetic torque for driving a load and suspension force for supporting a rotor, and becomes a new hotspot in the research field of high-speed motors.
Disclosure of Invention
In view of the above, the invention provides a flexible function magnetic suspension switched reluctance motor, which has the characteristics that a single-winding flexible stator is matched with a salient pole rotor, so that two working modes of torque and torque/suspension can be realized, the suspension output capability of the magnetic suspension switched reluctance motor is improved, the strong disturbance resistance capability of a system is increased, and the flexible function magnetic suspension switched reluctance motor has particularly important advantages in a carrying type flywheel battery, a vehicle-mounted air compressor and a satellite attitude control platform.
The present invention achieves the above-described object by the following technical means.
A magnetic suspension switched reluctance motor is of an 12/14 doubly salient structure and comprises a single-winding flexible stator, a main suspension stator, a salient pole rotor and a magnetic isolation plate, wherein the main suspension stator and the magnetic isolation plate are distributed in a motor stator yoke at intervals; the main suspension stator is matched with the salient pole rotor to generate suspension force; the single-winding flexible stator is matched with the convex rotor, so that suspension force and torque can be generated.
The single-winding flexible stator comprises a first U-shaped stator, a second U-shaped stator, a third U-shaped stator and a fourth U-shaped stator which are arranged at equal intervals, and flexible windings are wound on the U-shaped stators in an overlapping mode.
The first U-shaped stator and the third U-shaped stator form an A phase, and the second U-shaped stator and the fourth U-shaped stator form a B phase.
The main suspension stator comprises a first wide salient pole, a second wide salient pole, a third wide salient pole and a fourth wide salient pole which are arranged at equal intervals, main suspension windings are wound on the wide salient poles in an overlapping mode, and the suspension windings are all controlled by direct current.
The suspension winding comprises a first main suspension winding, a second main suspension winding, a third main suspension winding and a fourth main suspension winding, the first main suspension winding is connected with the third main suspension winding in series, and the second main suspension winding is connected with the fourth main suspension winding in series.
The salient pole rotor is provided with teeth which are distributed at equal intervals.
The salient pole rotor is nested on the rotating shaft.
A carrying type flywheel battery comprises the magnetic suspension switched reluctance motor.
The vehicle-mounted air compressor comprises the magnetic suspension switched reluctance motor.
A satellite attitude control platform comprises the magnetic suspension switched reluctance motor.
Compared with the prior art, the invention has the beneficial effects that after the technical scheme is adopted:
(1) compact structure and high power density
The magnetic suspension switched reluctance motor with the flexible function omits a magnetic suspension bearing, shortens the axial length of the motor, and improves the efficiency and the power density of the motor;
(2) high suspension force upper limit and high control precision
The output suspension force of the magnetic suspension switched reluctance motor with the flexible function can be generated by matching the single-winding flexible stator and the salient pole rotor besides the main suspension stator and the salient pole rotor, and compared with the traditional magnetic suspension switched reluctance motor, the output suspension force of the magnetic suspension switched reluctance motor with the flexible function can make up the defect of insufficient suspension force of the magnetic suspension switched reluctance motor, so that the rotor is suspended more stably.
Drawings
FIG. 1 is a schematic structural diagram of a magnetically suspended switched reluctance motor with a flexible function according to the present invention;
FIG. 2 is a detailed view of the structure of the magnetically levitated switched reluctance motor with the flexible function according to the present invention;
FIG. 3 is a schematic diagram of the working principle of the single-winding flexible stator of the magnetic suspension switched reluctance motor with the flexible function according to the present invention;
FIG. 4 is a schematic diagram of the working principle of the main suspension stator of the magnetic suspension switched reluctance motor with the flexible function according to the present invention;
in the figure: 1-single winding flexible stator, 2-main suspension stator, 3-salient pole rotor, 4-magnetic isolation plate, 1-1-first U-shaped stator, 1-2-second U-shaped stator, 1-3-third U-shaped stator, 1-4-fourth U-shaped stator, 1-5-first flexible winding, 1-6-second flexible winding, 1-7-third flexible winding, 1-8-fourth flexible winding, 2-1-first wide salient pole, 2-2-second wide salient pole, 2-3-third wide salient pole, 2-4-fourth salient pole width, 2-5-first main suspension winding, 2-6-second main suspension winding, 2-7-third main suspension winding, 2-8-a fourth main suspension winding, 4-1-a first magnetism isolating plate, 4-2-a second magnetism isolating plate, 4-3-a third magnetism isolating plate and 4-4-a fourth magnetism isolating plate.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Example 1
As shown in fig. 1, the magnetic suspension switched reluctance motor with a flexible function of the present invention has an 12/14 double salient structure, and specifically includes: the single-winding flexible stator comprises a single-winding flexible stator 1, a main suspension stator 2, a salient pole rotor 3 and a magnetic isolation plate 4; the main suspension stator 2 is connected with the inside of a motor stator yoke, and the outside of the motor stator yoke is connected with a motor side magnetic conduction plate; the interior of the motor stator yoke is also connected with a magnetism isolating plate 4, and the inner side of the magnetism isolating plate 4 is provided with a single-winding flexible stator 1; the single-winding flexible stator 1 and the main suspension stator 2 share the salient pole rotor 3, the salient pole rotor 3 is positioned inside, and radial air gaps with equal gaps are reserved between the single-winding flexible stator 1 and the main suspension stator 2 (figure 3); the salient pole rotor 3 is provided with 14 teeth which are distributed at equal intervals, and the salient pole rotor 3 is nested on the rotating shaft; the main suspension stator 2 is matched with the salient pole rotor 3 to generate stable suspension force, and the single-winding flexible stator 1 is matched with the salient pole rotor 3 to generate suspension force and torque.
As shown in fig. 2, the single-winding flexible stator 1 includes a first U-shaped stator 1-1, a second U-shaped stator 1-2, a third U-shaped stator 1-3 and a fourth U-shaped stator 1-4 which are uniformly distributed at intervals of 90 degrees, the first U-shaped stator 1-1 is installed inside a first magnetic isolation plate 4-1, the second U-shaped stator 1-2 is installed inside a second magnetic isolation plate 4-2, the third U-shaped stator 1-3 is installed inside a third magnetic isolation plate 4-3, and the fourth U-shaped stator 1-4 is installed inside a fourth magnetic isolation plate 4-4; the first U-shaped stator 1-1 and the third U-shaped stator 1-3 form an A phase, and the control currents of the first U-shaped stator 1-1 and the third U-shaped stator 1-3 are i respectivelyA1、iA2The second U-shaped stator 1-2 and the fourth U-shaped stator 1-4 form a B phase, and the control currents of the second U-shaped stator 1-2 and the fourth U-shaped stator 1-4 are i respectivelyB1、iB2(ii) a A first flexible winding 1-5 is wound between two teeth of a first U-shaped stator 1-1, a second flexible winding 1-6 is wound between two teeth of a second U-shaped stator 1-2, a third flexible winding 1-7 is wound between two teeth of a third U-shaped stator 1-3, and a fourth flexible winding 1-8 is wound between two teeth of a fourth U-shaped stator 1-4; the first flexible winding 1-5, the second flexible winding 1-6, the third flexible winding 1-7 and the fourth flexible winding 1-8 are independently controlled and are not connected in series.
As shown in FIG. 2, the main suspension stator 2 includes a first wide salient pole 2-1, a second wide salient pole 2-2, a third wide salient pole 2-3 and a fourth wide salient pole 2-4 uniformly distributed at intervals of 90 DEG, and control currents of the first wide salient pole 2-1, the second wide salient pole 2-2, the third wide salient pole 2-3 and the fourth wide salient pole 2-4 are i1、i2、i3、i4Current i1、i3Control of the levitation force, current i, generated in the y-direction2、i4Controlling to generate suspension force in the x direction; a first main suspension winding is lap-wound on the first wide salient pole 2-12-5, a second main suspension winding 2-6 is wound on the second wide salient pole 2-2, a third main suspension winding 2-7 is wound on the third wide salient pole 2-3, and a fourth main suspension winding 2-8 is wound on the fourth wide salient pole 2-4; the first main suspension winding 2-5 is connected with the third main suspension winding 2-7 in series, the second main suspension winding 2-6 is connected with the fourth main suspension winding 2-8 in series, and the first main suspension winding 2-5, the second main suspension winding 2-6, the third main suspension winding 2-7 and the fourth main suspension winding 2-8 are controlled by direct current. Four single-winding flexible stators are sequentially distributed between the two wide salient poles.
As shown in FIG. 3, when the suspension force required by the system does not exceed the upper limit of the suspension force which can be provided by the main suspension stator 2, the first U-shaped stator 1-1, the second U-shaped stator 1-2, the third U-shaped stator 1-3 and the fourth U-shaped stator 1-4 operate in a torque mode, the currents in the first flexible winding 1-5, the second flexible winding 1-6, the third flexible winding 1-7 and the fourth flexible winding 1-8 are the same, and the current iA1、iA2、iB1、iB2Are all torque currents used to generate drive torque. When the suspension force required by the system does not exceed the upper limit of the suspension force which can be provided by the main suspension stator 2, the suspension force is only generated by the first wide salient pole 2-1, the second wide salient pole 2-2, the third wide salient pole 2-3 and the fourth wide salient pole 2-4.
As shown in fig. 3 and 4, when the suspension force required by the system exceeds the upper limit of the suspension force that can be provided by the main suspension stator 2, currents in the first flexible winding 1-5, the second flexible winding 1-6, the third flexible winding 1-7 and the fourth flexible winding 1-8 on the first U-shaped stator 1-1, the second U-shaped stator 1-2, the third U-shaped stator 1-3 and the fourth U-shaped stator 1-4 are controlled to be different from each other on the basis of the torque current, so that a suspension current component is added to the flexible windings, and the magnitude of the suspension current component is adjusted in real time according to the required suspension force (in the prior art), so as to form an asymmetric excitation current, thereby generating an asymmetric air gap magnetic field and further generating the suspension force. At the moment, the single-winding flexible stator operates in a torque/suspension mode, additionally generated suspension force and the main suspension stator 2 are resistant to interference together, and the precision of suspension force adjustment and the upper limit of output are improved.
Example 2
A carrying type flywheel battery comprises the magnetic suspension switched reluctance motor in the embodiment 1, and the structure and the working process of the magnetic suspension switched reluctance motor are described in detail in the embodiment 1 and are not described in detail herein.
Example 3
A vehicle-mounted air compressor comprises the magnetic suspension switched reluctance motor in embodiment 1, and the structure and the working process of the magnetic suspension switched reluctance motor are described in detail in embodiment 1 and are not repeated herein.
Example 4
A satellite attitude control platform, including the magnetic suspension switched reluctance motor in embodiment 1, the structure and working process of which are described in detail in embodiment 1 and are not described herein again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. A magnetic suspension switched reluctance motor is characterized by having an 12/14 doubly salient structure and comprising a single-winding flexible stator (1), a main suspension stator (2), a salient pole rotor (3) and magnetic isolation plates (4), wherein the main suspension stator (2) and the magnetic isolation plates (4) are distributed inside a motor stator yoke at intervals, the single-winding flexible stator (1) is installed on the inner side of each magnetic isolation plate (4), and the single-winding flexible stator (1) and the main suspension stator (2) share the salient pole rotor (3); the main suspension stator (2) is matched with the salient pole rotor (3) to generate suspension force; the single-winding flexible stator (1) is matched with the convex rotor (3), and can generate suspension force and torque.
2. The magnetic suspension switched reluctance motor of claim 1, wherein the single-winding flexible stator (1) comprises a first U-shaped stator (1-1), a second U-shaped stator (1-2), a third U-shaped stator (1-3) and a fourth U-shaped stator (1-4) which are arranged at equal intervals, and flexible windings are uniformly wound on the U-shaped stators.
3. The magnetic levitation switched reluctance motor according to claim 2, wherein the first U-shaped stator (1-1) and the third U-shaped stator (1-3) constitute a phase a, and the second U-shaped stator (1-2) and the fourth U-shaped stator (1-4) constitute a phase B.
4. The magnetic levitation switched reluctance motor as claimed in claim 1, wherein the main levitation stator (2) comprises a first wide salient pole (2-1), a second wide salient pole (2-2), a third wide salient pole (2-3) and a fourth wide salient pole (2-4) arranged at equal intervals, the wide salient poles are wound with main levitation windings, and the levitation windings are controlled by direct current.
5. The magnetic levitation switched reluctance machine according to claim 4, wherein the levitation windings comprise a first main levitation winding (2-5), a second main levitation winding (2-6), a third main levitation winding (2-7) and a fourth main levitation winding (2-8), the first main levitation winding (2-5) is connected in series with the third main levitation winding (2-7), and the second main levitation winding (2-6) is connected in series with the fourth main levitation winding (2-8).
6. The magnetic levitation switched reluctance machine according to claim 1, wherein the salient pole rotor (3) is provided with (14) equally spaced teeth.
7. The magnetic levitation switched reluctance machine according to claim 1, wherein the salient pole rotor (3) is nested on the rotating shaft.
8. A flywheel battery on board, comprising a magnetically levitated switched reluctance motor according to any one of claims 1 to 7.
9. An air compressor for vehicles, characterized in that, it comprises the magnetic suspension switch reluctance motor of any one of claims 1 to 7.
10. A satellite attitude control platform comprising a magnetically levitated switched reluctance motor as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567433.7A CN112713738A (en) | 2020-12-25 | 2020-12-25 | Magnetic suspension switched reluctance motor, carrying type flywheel battery, vehicle-mounted air compressor and satellite attitude control platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567433.7A CN112713738A (en) | 2020-12-25 | 2020-12-25 | Magnetic suspension switched reluctance motor, carrying type flywheel battery, vehicle-mounted air compressor and satellite attitude control platform |
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| Publication Number | Publication Date |
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| CN112713738A true CN112713738A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011567433.7A Pending CN112713738A (en) | 2020-12-25 | 2020-12-25 | Magnetic suspension switched reluctance motor, carrying type flywheel battery, vehicle-mounted air compressor and satellite attitude control platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833678A (en) * | 2021-09-16 | 2021-12-24 | 河北农业大学 | Gas compressor |
| CN114421728A (en) * | 2022-03-02 | 2022-04-29 | 上海交通大学 | Modularized stator amorphous alloy reluctance motor, system and control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113833678A (en) * | 2021-09-16 | 2021-12-24 | 河北农业大学 | Gas compressor |
| CN114421728A (en) * | 2022-03-02 | 2022-04-29 | 上海交通大学 | Modularized stator amorphous alloy reluctance motor, system and control method |
| CN114421728B (en) * | 2022-03-02 | 2023-10-31 | 上海交通大学 | Modularized stator amorphous alloy reluctance motor, system and control method |
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Application publication date: 20210427 |