CN203675009U - Magnetic suspension switch magnetic resistance motor - Google Patents
Magnetic suspension switch magnetic resistance motor Download PDFInfo
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- CN203675009U CN203675009U CN201320829637.2U CN201320829637U CN203675009U CN 203675009 U CN203675009 U CN 203675009U CN 201320829637 U CN201320829637 U CN 201320829637U CN 203675009 U CN203675009 U CN 203675009U
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Abstract
The utility model discloses a magnetic suspension switch magnetic resistance motor; 12 motor stator poles are arranged, and each stator pole is provided with a winding capable of simultaneously providing torque force and suspension force; the motor stator winding complexity is reduced, and motor structure compact property is improved; a motor rotor comprises two portions including 8 rotor poles and a rotor ring portion; motor suspension force can be commonly generated by the rotor poles and the rotor ring portion; in a rotor rotation process, because of the special feature of the rotor ring portion, an intersect [theta] angle is not formed with the stator poles; therefore, under a same size, the suspension force of the magnetic suspension switch magnetic resistance motor can be increased when compared with that of a conventional magnetic suspension switch magnetic resistance motor, thereby improving operation stability of the rotor, system cost is low, and high speed adaptability is strong.
Description
Technical field
The invention belongs to technical field of motors, relate to a kind of magnetic suspension switched reluctance motor.
Background technology
Along with industrial expansion, need a cost low, compact conformation, low in energy consumption, the motor that serious forgiveness is high adapts to severe operational environment, and switched reluctance machines has such feature.But there is following problem in traditional switched reluctance machines: the mechanical bias that 1) rotor occurs due to unbalanced magnetic pull, 2) current impulse and torque pulsation on uncontrollable short distance winding, 3) electric fault produces unbalanced torque force and noise is large, easily vibration.The rational method overcoming the above problems is exactly by electromagnetic force suspension rotor, so magnetic suspension switched reluctance motor arises at the historic moment.
Magnetic suspension switched reluctance motor is the novel magnetically levitated motor of one growing up for 20 end of the centurys.Double winding magnetic suspension switched reluctance motor be on the stator of regular tap reluctance motor, additionally added a set of for the suspending windings of suspending power is provided.The torque winding (main winding) of the torque of providing is provided on stator and the suspending windings (inferior winding) of suspending power is provided, thereby realize the ultrahigh speed operation of motor.
Between double winding magnetic levitation switch magneto torque winding and suspending windings, existing close coupling, be difficult to realize decoupling zero in control strategy and Mathematical Modeling, is that magnetic suspension switched reluctance motor runnability is difficult to one of reason improving.Magnetic suspension switched reluctance motor is generally applied in the fields such as flywheel energy storage, high-speed machine tool, turbomolecular pump and Aero-Space, and it is severe that motor moves residing environment, and the external disturbance that rotor is subject to is large.The radial suspension force that traditional magnetic suspension switched reluctance motor provides can not well maintain rotor operation.
Summary of the invention
The present invention is directed to above-mentioned technical problem, propose a kind of magnetic suspension switched reluctance motor.Motor adopts simplex winding NNNSSS structure, only has a set of coil in each stator poles, and every cover coil is independently controlled, simple in structure, compactness.Rotor is made up of jointly rotor pole and rotor annulus part, can provide larger suspending power to maintain motor stabilizing operation.
The technical solution adopted for the present invention to solve the technical problems is: a kind of magnetic suspension switched reluctance motor, comprise stator and rotor, described stator has 12 stator poles, in each stator poles, only there is a set of winding, the rule that the magnetic direction that winding produces by winding current is NNNSSS distributes, and reaches the best branch in motor internal magnetic field effect.The winding that 4 intervals are 90 ° forms a phase, total A, B, C three-phase.Every suit winding of each phase is independently controlled, and every suit winding can provide torque force and radial load simultaneously.Rotor has 8 rotor poles, and the axial length that the axial length of rotor pole adds upper rotor part annulus part equals the axial length of stator poles.Rotor pole and rotor annulus part are coaxial, and the external diameter of rotor pole is identical with the external diameter of rotor annulus part.
The invention has the beneficial effects as follows: described motor stator has 12 stator poles, only have a set of winding in each stator poles, the stator poles that 4 intervals are 90 ° forms a phase, and one has 3 phases.Every suit winding of each phase is independently controlled, and every suit winding can provide torque force and radial load simultaneously.Such electric machine structure is simply compact, has reduced volume and the cost of magnetic suspension switched reluctance motor.Rotor by 8 rotor poles and coaxial, form with the rotor annulus part in footpath.The axial length that the axial length of rotor pole adds upper rotor part annulus part equals the axial length of stator poles.No matter how rotor rotates, due to the particularity of rotor annulus part, the useful flux area between rotor annulus part and stator is constant, and suspending power remains on maximum rating always, thereby makes the suspension of motor good, stable performance and strong adaptability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is axial arrangement schematic diagram of the present invention;
Fig. 2 is side direction 3D structural representation of the present invention;
Fig. 3 is rotor structure schematic diagram of the present invention;
Fig. 4 be take A mutually as example, suspending power produce principle schematic;
Fig. 5 is that rotor turns over θ ° (0≤θ≤15), the magnetic circuit distribution map between rotor pole and stator poles;
Fig. 6 is that rotor turns over θ ° (0≤θ≤15), the magnetic circuit distribution map between rotor annulus part and stator poles;
In figure, 11 is stator yoke, the 12nd, and rotor pole, the 13rd, rotor annulus part, the 14th, stator poles, the 15th, rotating shaft, the 16th, the magnetic field between rotor.
Embodiment
Fig. 1--3, motor is by stator yoke 11, stator poles 14, rotating shaft 15, rotor pole 12, rotor annulus part 13 forms.Stator yoke 11 is cylinder type, inner sleeve rotating shaft 15, the outer fixed cover cartridge rotor of rotating shaft 15.Rotor pole 12 and rotor annulus part 13 be coaxial, have 8 with footpath and rotor pole 12 quantity.On the inner peripheral surface of stator yoke 11, fix 12 stator poles 14, and be wound around winding, distribute according to NNNSSS.
Winding is made up of A, B, C tri-phase windings, and every phase winding is made up of 4 coils, totally 12 coils, and each coil is independently controlled.Wherein, A phase winding is by A1, A2, and A3, A4 coil composition, B phase winding is by B1, B2, B3, B4 coil composition, C phase winding is by C1, C2, C3, C4 coil composition.These 12 coils are respectively wrapped in a stator poles 14, and are distributed in the counterclockwise direction successively in corresponding stator poles 14 according to the order of A1 → B1 → C1 → A2 → B2 → C2 → A3 → B3 → C3 → A4 → B4 → C4 coil.
Rotor is made up of rotor pole 12 and rotor annulus part 13.The diameter of rotor annulus part 13 is identical with the diameter of rotor pole 12, and is jointly fixed in rotating shaft 15.Two-part axial length sum is identical with the axial length of stator poles 14.
When machine operation, rotor is rotated counterclockwise.Winding power-up sequence depends on rotor angular position thetar.Any time, only have 4 coil electricities of a phase winding, and these four coils independently control, size of current difference.Take A, mutually as example, if produce the suspending power in α direction, its energising schematic diagram as shown in Figure 4, A2, A4 coil electricity size of current is ima, this electric current only provides torque force, A3 coil electricity size of current is ima-isa, and A1 coil electricity size of current is ima+isa.In like manner, produce the suspending power in β direction, A1, A3 coil electricity size of current is ima, and this electric current only provides torque force, and A4 coil electricity size of current is ima-isa, and A2 coil electricity size of current is ima+isa.
In the time that rotor turns over θ angle, between rotor pole 12 and stator poles 14, can produce corresponding suspending power, its magnetic circuit is as shown in Figure 5.Rotor annulus part 13 and stator poles 14 produce corresponding suspending power, and its magnetic circuit as shown in Figure 6.The two-part common composition suspending power of making a concerted effort carrys out support rotor stable suspersion.Different from rotor pole 12, between rotor annulus part 13 and stator, magnetic flux effective area is constant, irrelevant with the angle θ that rotor turns over, so suspending power increases.
This described embodiment is preferred embodiment of the present invention; but invention is not limited to above-mentioned execution mode; in the situation that not deviating from flesh and blood of the present invention, any apparent improvement, replacement or modification that those skilled in the art can make all belong to protection scope of the present invention.
Claims (3)
1. a magnetic suspension switched reluctance motor, it is characterized in that: by stator yoke (11), stator poles (14), rotating shaft (15), rotor pole (12), rotor annulus part (13) composition, stator yoke (11) is cylinder type, inner sleeve rotating shaft (15), the outer fixed cover cartridge rotor of rotating shaft (15), rotor pole (12) and rotor annulus part (13) are coaxial, there are 8 with footpath and rotor pole (12), on the inner peripheral surface of stator yoke (11), fix 12 stator poles (14), the upper winding that is wound around of stator poles (14), the rule that the magnetic direction that winding produces by winding current is NNNSSS distributes.
2. a kind of magnetic suspension switched reluctance motor according to claim 1, it is characterized in that: described winding is totally 12 coils, it is upper that each coil is respectively wrapped in a stator poles (14), is divided into three-phase, the winding that every 4 intervals are 90 ° forms a phase winding, and each coil is independently controlled.
3. a kind of magnetic suspension switched reluctance motor according to claim 1, is characterized in that: the axial length sum of described rotor annulus part (13) and rotor pole (12) is identical with the axial length of stator poles (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829637.2U CN203675009U (en) | 2013-12-16 | 2013-12-16 | Magnetic suspension switch magnetic resistance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829637.2U CN203675009U (en) | 2013-12-16 | 2013-12-16 | Magnetic suspension switch magnetic resistance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203675009U true CN203675009U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320829637.2U Expired - Fee Related CN203675009U (en) | 2013-12-16 | 2013-12-16 | Magnetic suspension switch magnetic resistance motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203675009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647359A (en) * | 2013-12-13 | 2014-03-19 | 江苏大学 | Magnetic suspension switch magnetic resistance motor |
-
2013
- 2013-12-16 CN CN201320829637.2U patent/CN203675009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647359A (en) * | 2013-12-13 | 2014-03-19 | 江苏大学 | Magnetic suspension switch magnetic resistance motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |