CN208209713U - A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor - Google Patents
A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor Download PDFInfo
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- CN208209713U CN208209713U CN201820618865.8U CN201820618865U CN208209713U CN 208209713 U CN208209713 U CN 208209713U CN 201820618865 U CN201820618865 U CN 201820618865U CN 208209713 U CN208209713 U CN 208209713U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model is a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor, including stator, stator sleeve, rotor, rotor sleeve, flywheel, stator and rotor are axially subdivided into A phase, B phase and C phase three parts, axial charging permanent magnet is housed between per adjacent phase, A phase, 12 rotor poles are equipped at equal intervals respectively on the inside of B phase and the rotor core of C phase, A phase rotor pole, B phase rotor pole and C rotor pole along the circumferential direction stagger successively 1/3 rotor polar distance, it is arranged by turn-on and turn-off angle and realizes self-starting, A phase and C phase stator core are respectively equipped with 8 narrow tooth torque poles and 4 wide tooth suspension poles, B phase stator is equipped with 12 wide torque poles, it is wound with control coil respectively in torque pole and suspension extremely.The utility model realizes that self-starting and four-degree-of-freedom suspend, and achievees the effect that reduce torque pulsation and enhances torque power output.
Description
Technical field
The utility model belongs to the technical field of magnetic suspension motor, and it is axial to particularly relate to a kind of three-phase four-degree-of-freedom
Split-phase magnetically levitated flywheel motor.
Background technique
With the development in the fields such as generation of electricity by new energy, distributed power supply system, hybrid vehicle, aerospace, energy storage
Technology already becomes global research hotspot.In many energy storage technologies, flywheel energy storage because high-efficient, power is big, the service life is long,
The advantages that energy storage density is big, pollution-free is by great attention both domestic and external.However, flywheel energy storage is there are still many technical problems,
Including the problem of implementation of suspension bearing system: to reduce suspension bearing loss, generally using multiple magnetcisuspensions in flywheel energy storage
Floating axle is held, this will definitely increase flywheel rotor axial length, to reduce its critical speed, while also increasing flying wheel battery structure
Complexity.
Magnetic suspension motor integrates suspension bearing system and driving motor, when core component as flywheel energy storage,
Flywheel rotor axial length can largely be shortened, be easy to implement high speed/ultrahigh speed operation, the specific energy of lifting system with than function
Rate, switched reluctance machines have the advantages that speed-regulating range width, efficiency platform is wide and simple and reliable for structure, mechanical strength is big, fit
The flywheel of high speed, ultrahigh speed operation is closed, and these advantages form magnetic suspension switched reluctance motor in conjunction with magnetic suspension motor technology
(bearingless switched reluctance motors, BSRM) also further eliminates the friction of mechanical bearing bring
Loss, have the advantages that without wear, utilization rate small in size, low in energy consumption and axial it is high, while can also effectively weaken Oscillation Amplitude with
And system noise, system operation reliability and service life are improved, this makes it in the potential using value in flywheel energy storage field
It is especially prominent.
But it makes a general survey of both at home and abroad, practical engineering application popularity of the BSRM in flywheel energy storage be not high at present, studies carefully its original
Because mainly there is complicated electromagnetism close coupling relationship, machine analysis and High-speed Control in motor inside winding-magnetic circuit-electromagnetic force
Difficulty is big, this, which has become, restricts the main bottleneck that this technology enters engineer application.In recent years, some scholars are attempted from motor
The angle of structure weakens electromagnetic coupling, proposes bimorph transducer, mixed rotor, mixing a variety of knots such as stator and permanent magnet bias
Structure overcomes Solution of Electromagnetic Field Penetration Problems on the certain depth of the proposition of these structures, but there is also many deficiencies, not such as double-stator structure
It is easy to motor and flywheel Integration Design；Mixed rotor structure axial length is still longer, and flywheel critical speed is limited；Mixing is fixed
Son and permanent magnet bias structure, suspension pole occupy more space, motor output torque and power limited, it is quick to be unfavorable for flywheel
Charge and discharge electricity operation.For this purpose, patent of invention " 201610864124.3 " has invented a kind of axial phase inner stator permanent magnet bias magnetcisuspension
Floation switch magnetic resistance fly-wheel motor, which is designed by axial phase realizes four-degree-of-freedom suspension bearing, and is mentioned using permanent magnet
For biasing magnetic flux, suspension bearing loss is reduced, lifting system efficiency and power density, but invention mentions that optimize structure be two-phase
Structure does not have self-starting performance, and output torque density is lower, torque pulsation is larger, influences flywheel charge and discharge runnability.
Summary of the invention
To solve the above-mentioned problems, the utility model proposes a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel electricity
Machine further increases output torque, reduces torque pulsation and realize self-starting.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
The utility model is a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor, including stator, stator sleeve,
Rotor, rotor sleeve, flywheel, rotor core, rotor sleeve and flywheel are concentrically nested from inside to outside at an entirety, stator core
With stator sleeve is concentrically nested is mounted in fixing axle, stator and rotor are axially subdivided into A phase, B phase and C phase three parts, every phase
Axial charging permanent magnet is housed between adjacent phase, is equipped with 12 rotor poles, A at equal intervals respectively on the inside of A phase, B phase and the rotor core of C phase
Phase rotor pole, B phase rotor pole and C rotor pole along the circumferential direction stagger successively 1/3 rotor polar distance, pass through turn-on and turn-off angle
Setting realizes that self-starting, A phase and C phase stator core are respectively equipped with 8 narrow tooth torque poles and 4 wide tooth suspension poles, and B phase stator is set
There are 12 wide torque poles, is wound with control coil respectively in torque pole and suspension extremely, the control coil series connection structure in A phase torque extremely
At A phase torque winding, control coil C phase torque winding in series in C phase torque extremely, A phase, C face two suspension poles
On control coil two sets of suspending windings of orthogonal direction in series, the control coil B phase in series in 12 torques extremely of B phase
Torque winding.
Further improvement of the utility model is: pole shoe tooth, the width of pole shoe of suspension pole are selected in torque pole and suspension pole
Equal to rotor polar distance, the width of pole shoe of torque pole is equal to 1/2 rotor polar distance.
Further improvement of the utility model is: torque pole and suspension pole are equipped with magnetic isolation unit part.
Further improvement of the utility model is: magnetism-isolating loop is equipped between the phase torque pole B and stator sleeve.
Further improvement of the utility model is: being the first permanent magnet between A phase and B phase, is the between B phase and C phase
Two permanent magnets, permanent magnetic circuit are that the pole N → A phase stator sleeve → A phase stator core → A phase air gap → A phase of the first permanent magnet turns
Sub- iron core → rotor sleeve → C phase rotor core → C phase air gap → C phase stator core → C phase stator sleeve → second permanent magnet
The pole the pole S → second permanent magnet N → B phase stator sleeve → first permanent magnet pole S.
The beneficial effects of the utility model are: (1) the utility model uses axial phase A, B, C three-phase structure, every phase turns
Sub- pole along the circumferential direction staggers successively 1/3 rotor polar distance, and being arranged by turn-on and turn-off angle can be achieved motor self-starting；
(2) the utility model A, C two-phase stator sets up suspension pole and torque pole separately, while realizing energy conversion, reaches flywheel rotor diameter
To four-degree-of-freedom suspension operation；(3) all torque pole of 12 stator poles in the stator core of the utility model B phase, substantially enhances
Motor torque power output and power density, and reduce torque pulsation；(4) it is set between the utility model B phase torque pole and stator sleeve
There is magnetism-isolating loop, the decoupling of radial four-degree-of-freedom suspension magnetic circuit and three-phase direct torque magnetic circuit is realized from structure, is significantly reduced
It suspends and direct torque difficulty.
Rotor is axially subdivided into A, B, C three-phase by the utility model, and A, C two-phase set up suspension pole and torque pole, B phase separately
Stator core is equipped with 12 wide torque poles at equal intervals, realizes that self-starting and four-degree-of-freedom suspend, reach reduce torque pulsation and
Enhance the effect of torque power output.
Detailed description of the invention
Fig. 1 is the utility model electric machine structure axial sectional diagrammatical view illustration.
Fig. 2 is the utility model electric machine structure A phase radial cross section.
Fig. 3 is the utility model electric machine structure B phase radial cross section.
Fig. 4 is the utility model electric machine structure C phase radial cross section.
Fig. 5 is that the utility model winding A is connected schematic diagram.
Fig. 6 is that the utility model winding B is connected schematic diagram.
Fig. 7 is the utility model motor permanent magnetic circuit and suspending windings magnetic circuit schematic diagram.
Wherein: the first permanent magnet of 1-, 2- stator, 3- rotor sleeve, 4- magnetism-isolating loop, 5- rotor, 6- flywheel, 7- stator sleeve
Cylinder, the second permanent magnet of 8-, 201- suspension pole, 202- torque pole, 203- magnetic isolation unit part, 204-A phase suspending windings, 205-A phase turn
Square winding, 206- suspending windings magnetic circuit, 207- torque winding magnetic circuit, 208- permanent magnetic circuit, the torque of 209-B phase around
Group, 501- rotor polar distance, 502- rotor pole.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
As shown in figs. 1-7, the utility model is a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor, including fixed
Sub 2, stator sleeve 7, rotor 5, rotor sleeve 3, flywheel 6, rotor core, rotor sleeve 3 and flywheel 6 are concentrically nested from inside to outside
At an entirety, stator core with stator sleeve 7 is concentrically nested is mounted in fixing axle, the stator 2 and rotor 5 are along axial point
At A phase, B phase and C phase three parts, axial charging permanent magnet, the A phase, the B phase and the C phase are housed between every adjacent phase
It is equipped with 12 rotor poles 502, the A phase rotor pole 502, the B phase rotor pole 502 and institute on the inside of rotor core at equal intervals respectively
It states C rotor pole 502 and along the circumferential direction staggers successively 1/3 rotor polar distance 501, realized by the setting of turn-on and turn-off angle and opened certainly
Dynamic, the A phase and the C phase stator core are respectively equipped with 8 narrow tooth torque poles 202 and 4 wide tooth suspension poles 201, the A phase
8 torque poles 202 are set at equal intervals between four suspension poles 201 of the C phase, permanent magnetism is housed between every phase internal stator iron core
Ring provides biasing magnetic flux using axial charging for eight A phase, C phase suspension poles, the B phase stator is equipped with 12 wide torque poles
202, every phase rotor core inside is equipped with 12 rotor poles at equal intervals, and along the circumferential direction staggers successively 1/3 rotor polar distance,
Self-starting is realized, while because of the increase of B phase torque pole, effectively enhancing torque power output, and reduce torque pulsation, the B phase turns
Magnetism-isolating loop 4 is equipped between moment pole 202 and stator sleeve 7, oneself of realization suspension magnetic circuit and direct torque magnetic circuit from structure
So decoupling, effectively improves suspendability and decoupling effect, is wound with control respectively on the torque pole 202 and the suspension pole 201
Coil is wound with direct torque coil on the torque pole 202, suspension control coil, the A phase is wound on the suspension pole 201
Control coil A phase torque winding 205 in series in torque extremely, the control coil C phase in series in the C phase torque extremely
Torque winding, the A phase, C face two sets of the orthogonal direction in series of the control coil on two suspension pole 201 suspend around
Group, that is to say, that A phase suspending windings 204 include two sets of orthogonal direction, the control to be suspended on extremely by 2, respective direction face respectively
Coil differential concatenation forms, and C phase suspending windings 204 include two sets of orthogonal direction, is suspended on extremely by 2, respective direction face respectively
Control coil differential concatenation form, the B phase torque winding in series of the control coil on the B phase 12 torque poles 202
209, it can effectively enhance the torque power output of motor, pole shoe tooth, the suspension are selected in the torque pole 202 and the suspension pole 201
The width of pole shoe of pole 201 is equal to rotor polar distance 501, suspension pole constant, the institute that is aligned area with rotor pole under any rotor-position
The width of pole shoe for stating torque pole 202 is equal to 1/2 rotor polar distance 501, and the torque pole 202 and the suspension pole 201 are equipped with every magnetic
Component 203 is the first permanent magnet 1 between the A phase and the B phase, is the second permanent magnet 8 between the B phase and the C phase,
Permanent magnetic circuit 208 is the pole N → A phase stator sleeve → A phase stator core → A phase air gap → A phase rotor core of the first permanent magnet 1
→ rotor sleeve → C phase rotor core → C phase air gap → C phase stator core → C phase stator sleeve → second permanent magnet 8 pole S
The pole N of → the second permanent magnet 8 → B phase stator sleeve → first permanent magnet 1 pole S.
The every phase rotor pole of the utility model along the circumferential direction staggers successively 1/3 rotor polar distance, passes through turn-on and turn-off
Self-starting is realized in angle setting；B phase stator core is equipped with 12 torque poles, effectively enhances torque power output, torque pulsation is greatly reduced,
It is more conducive to the charge and discharge control of motor；It is equipped with magnetism-isolating loop between the phase torque pole B and axial sleeve, the control that suspends is realized from structure
The natural decoupling of magnetic circuit processed and direct torque magnetic circuit, effectively improves suspendability and decoupling effect.
Claims (5)
1. a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor, including stator (2), stator sleeve (7), rotor (5),
Rotor sleeve (3), flywheel (6), rotor core, rotor sleeve (3) and flywheel (6) it is concentrically nested from inside to outside at an entirety,
Stator core with stator sleeve (7) are concentrically nested is mounted in fixing axle, it is characterised in that: the stator (2) and rotor (5) edge
Axially it is divided into A phase, B phase and C phase three parts, axial charging permanent magnet, the A phase, the B phase and institute is housed between every adjacent phase
It states and is equipped with 12 rotor poles (502), the A phase rotor pole (502), the B phase rotor on the inside of the rotor core of C phase at equal intervals respectively
Pole (502) and the C rotor pole (502) along the circumferential direction stagger successively 1/3 rotor polar distance (501), by being connected and closing
Self-starting is realized in angle of rupture setting, and the A phase and the C phase stator core are respectively equipped with 8 narrow tooth torque poles (202) and 4 wide
Tooth suspension pole (201), the B phase stator are equipped with 12 wide torque poles (202), the torque pole (202) and the suspension pole
(201) control coil is wound on respectively, the A phase torque winding in series of the control coil in the A phase torque extremely, the C phase
Control coil C phase torque winding in series in torque extremely, the A phase, C face the control on two suspension poles (201)
Coil two sets of suspending windings of orthogonal direction in series, the control coil B in series on the B phase 12 torque poles (202)
Phase torque winding.
2. a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor according to claim 1, it is characterised in that: described
Pole shoe tooth is selected in torque pole (202) and the suspension pole (201), and the width of pole shoe of the suspension pole (201) is equal to rotor polar distance
(501), the width of pole shoe of the torque pole (202) is equal to 1/2 rotor polar distance (501).
3. a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor according to claim 1 or claim 2, it is characterised in that:
The torque pole (202) and the suspension pole (201) are equipped with magnetic isolation unit part (203).
4. a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor according to claim 1, it is characterised in that: described
Magnetism-isolating loop (4) are equipped between B phase torque pole (202) and stator sleeve (7).
5. a kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor according to claim 1, it is characterised in that: described
Being between A phase and the B phase the first permanent magnet (1) is the second permanent magnet (8), permanent magnetic circuit between the B phase and the C phase
(208) for the first permanent magnet (1) the pole N → A phase stator sleeve → A phase stator core → A phase air gap → A phase rotor core → turn
Sub-sleeve → C phase rotor core → C phase air gap → C phase stator core → C phase stator sleeve → the second permanent magnet (8) pole S →
The pole N of second permanent magnet (8) → B phase stator sleeve → the first permanent magnet (1) pole S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618865.8U CN208209713U (en) | 2018-04-27 | 2018-04-27 | A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618865.8U CN208209713U (en) | 2018-04-27 | 2018-04-27 | A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor |
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| Publication Number | Publication Date |
|---|---|
| CN208209713U true CN208209713U (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820618865.8U Active CN208209713U (en) | 2018-04-27 | 2018-04-27 | A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539914A (en) * | 2018-04-27 | 2018-09-14 | 南京工程学院 | A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor |
| CN112332709A (en) * | 2020-09-24 | 2021-02-05 | 江苏大学 | Cylindrical rotor three-degree-of-freedom magnetic suspension switched reluctance motor |
-
2018
- 2018-04-27 CN CN201820618865.8U patent/CN208209713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539914A (en) * | 2018-04-27 | 2018-09-14 | 南京工程学院 | A kind of three-phase four-degree-of-freedom axial phase magnetically levitated flywheel motor |
| CN108539914B (en) * | 2018-04-27 | 2023-09-08 | 南京工程学院 | Three-phase four-degree axial split-phase magnetic suspension flywheel motor |
| CN112332709A (en) * | 2020-09-24 | 2021-02-05 | 江苏大学 | Cylindrical rotor three-degree-of-freedom magnetic suspension switched reluctance motor |
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