CN103490572A - Three-degree-of-freedom magnetic suspension switch reluctance motor - Google Patents
Three-degree-of-freedom magnetic suspension switch reluctance motor Download PDFInfo
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- CN103490572A CN103490572A CN201310418235.8A CN201310418235A CN103490572A CN 103490572 A CN103490572 A CN 103490572A CN 201310418235 A CN201310418235 A CN 201310418235A CN 103490572 A CN103490572 A CN 103490572A
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Abstract
The invention relates to a three-degree-of-freedom magnetic suspension switch reluctance motor, and belongs to the field of magnetic suspension switch reluctance motors and magnetic suspension bearings. A motor stator is composed of a radial magnetic filed motor stator body and two magnetic bearing stator bodies. The radial magnetic filed motor stator body and the two magnetic bearing stator bodies are of a salient pole structure, a motor winding winds each stator tooth of the radial magnetic filed motor stator body, and a magnetic bearing winding winds each stator tooth of each magnetic bearing stator body. A rotor is composed of a salient pole rotor body and two cylindrical rotor bodies in an axial superposition mode, the salient pole rotor body is located between the two cylindrical rotor bodies and is used for generating torque, and the cylindrical rotor bodies are used for generating radial and axial suspension force. The three-degree-of-freedom magnetic suspension switch reluctance motor integrates a bearingless switch reluctance motor and an axial magnetic suspension bearing, and is high in integrity. Only one set of windings is arranged on the radial magnetic bearing stator teeth, the stator bodies are of the salient pole structure, and therefore a plurality of structure modes can be selected. The minimum inductance area is used for suspension control, suspension current has little influence on torque current, and the inter-phase coupling effect is little.
Description
Technical field
The present invention relates to a kind of Three Degree Of Freedom magnetic suspension switched reluctance motor, belong to magnetic suspension switched reluctance motor and magnetic suspension bearing field.
Background technology
Bearing-free switch reluctance motor is a kind of novel magnetically levitated motor grown up for 20 end of the centurys.How many numbers with winding on stator classifies, and simplex winding bearing-free switch reluctance motor and double winding bearing-free switch reluctance motor are arranged.The control strategy of the two is different, but the mechanism that its suspending power and torque produce is identical, is by controlling winding current and varies in size, to form an asymmetric magnetic flux, and then produce direction and the controlled radial suspension force of size, thereby make motor there is rotation and from suspending power.With respect to the double winding bearing-free switch reluctance motor, simplex winding bearing-free switch reluctance motor stator only has a set of winding, and structure is more simple, and control algolithm is simple, has become study hotspot and the development trend of bearing-free switch reluctance motor.
Existing close coupling between torque and suspending power, and be difficult to realize the full decoupled of the two in control strategy and Mathematical Modeling, is that the bearing-free switch reluctance motor runnability is difficult to one of principal element improved.In addition, because suspending power is controlled required, must carry out copped wave control to winding current, and during high-speed cruising, the surge of back electromotive force causes being followed the tracks of copped wave to winding current and controls, there will be electric current to cut phenomenon incessantly, this has affected the performance of bearing-free switch reluctance motor high speed performance greatly.
If bearing-free motor will be realized the five degree of freedom suspension operation, need axial magnetic suspension bearing to be mated use.Axial magnetic bearing will certainly increase the axial length of floatation electric motor system, and then reduces critical whirling speed and power density.Therefore, realizing on torque and Decoupling control of levitation force basis, realizing the integrated study hotspot that has become the magnetic suspension motor field of bearing-free motor and axial magnetic bearing.
Summary of the invention
The present invention seeks to propose a kind of integrate bearing-free motor and axial magnetic bearing, suspending power and torque structurally full decoupled, high-speed adaptability strong, the Three Degree Of Freedom magnetic suspension switched reluctance motor of high power density.
The present invention adopts following technical scheme:
A kind of Three Degree Of Freedom magnetic suspension switched reluctance motor of the present invention, comprise the radial magnetic field motor stator, field spider, cylindrical rotor, radial magnetic field motor winding, magnetic bearing stator, magnetic bearing winding; Motor stator is comprised of radial magnetic field motor stator and two magnetic bearing stators, radial magnetic field motor stator and two magnetic bearing stators are salient-pole structure, be wound with a motor winding on each stator tooth of radial magnetic field motor stator, be wound with a magnetic bearing winding on each stator tooth of magnetic bearing stator; The winding string that but serial or parallel connection is certain number of phases on demand of the winding on each motor stator tooth, the winding on two all stators of axial magnetic bearing serial or parallel connection or connection in series-parallel respectively is two winding strings; Rotor is axially superposeed and forms by field spider and two cylindrical rotors, and field spider is between two cylindrical rotors, and the field spider iron core is for generation of torque, and cylindrical rotor is for generation of radial and axial suspending power.
Beneficial effect
A kind of Three Degree Of Freedom magnetic suspension switched reluctance motor provided by the invention, integrate bearing-free switch reluctance motor and axial magnetic suspension bearing, integrated height;
Only have a winding on the motor stator tooth, with respect to the double winding bearing-free switch reluctance motor, simple in structure, copper factor is high, economizes copper and economizes silicon steel sheet, can reduce the motor manufacturing cost;
A set of winding is only arranged on the axial magnetic bearing stator tooth, and stator is salient-pole structure, optional version is many;
On structure, radial suspension force and torque and radial suspension force and axial suspension power are full decoupled, and control method is simple, and suspendability is good.
Utilize the minimum inductance district to carry out the control that suspends, the suspension electric current is little on the impact of torque current, and the Coupling Between Phases effect is little.
The motor winding utilization is high, and power density is high, and high-speed adaptability is strong.
The accompanying drawing explanation
Fig. 1 is the three-dimensional structure cutaway view of Three Degree Of Freedom magnetic suspension switched reluctance motor of the present invention;
Fig. 2 is the winding schematic diagram of Three Degree Of Freedom magnetic suspension switched reluctance motor of the present invention
Fig. 3 is the winding inductance of three-phase 12/8 utmost point bearing-free switch reluctance motor in Three Degree Of Freedom magnetic suspension switched reluctance motor of the present invention and the change curve of electric current and rotor position angle.
The number in the figure title: the 1st, radial magnetic field motor stator, the 2nd, field spider, the 3rd, cylindrical rotor, the 4th, radial magnetic field motor winding, the 5th, magnetic bearing stator, the 6th, magnetic bearing winding, the 7th, winding inductance, the 8th, suspension stages winding current, 9 torque phase winding currents.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in more detail:
As shown in Figure 1: the three-dimensional structure schematic diagram of three-phase 12/8 utmost point 3DOF magnetic suspension switched reluctance motor of the present invention comprises radial magnetic field motor stator 1, field spider 2, cylindrical rotor 3, radial magnetic field motor winding 4, magnetic bearing stator 5 and magnetic bearing winding 6.Radial magnetic field motor (being bearing-free switch reluctance motor) stator and two axial magnetic bearing stators are salient-pole structure, wherein the motor stator number of teeth is 12, the magnetic bearing stator number of teeth is that even number gets final product, and all is wound with a winding on motor stator and magnetic bearing stator tooth, and winding configuration is for concentrating winding; Rotor is by field spider and two cylindrical rotors by axially being overrided to form, and field spider is between two cylindrical rotors, and wherein field spider, for generation of torque, do not produce suspending power, and cylindrical rotor does not produce torque for generation of radial and axial suspending power; By controlling the electric current of motor winding, the timesharing subregion produces radial suspension force and torque, and the two is full decoupled; By controlling the electric current of two magnetic bearing windings, make two axial air-gap magnetic fluxs asymmetric, and then produce axial suspension power; Utilize minimum inductance flat-top district as the zone that produces radial suspension force, do not produce torque in this zone, and motor suspension electric current is little to the motor torque current affects, the effect of motor Coupling Between Phases is little.
Fig. 2 is that a phase winding consists of the coil that is distributed in 4 relative teeth, spatially is separated by each other 90 °, and the independent control respectively of these 4 windings, and the timesharing subregion produces suspending power and torque.4 windings of B, C phase are identical with A phase winding structure, only differ 30 ° and-30 ° with A in position.
4 coils of A phase winding are respectively on two pairs of relative teeth, wherein
i a1
+,
i a2
+,
i a3
+,
i a4
+ be respectively mutually 4 electric currents that windings flow into of A,
i a1
-,
i a2
-,
i a3
-,
i a4
-A is the electric current that 4 windings flow out mutually respectively, α, β mean the both direction of rectangular coordinate system.
The winding inductance that Fig. 3 is three-phase 12/8 utmost point bearing-free switch reluctance motor and the change curve of electric current and rotor position angle.Definition stator tooth and rotor tooth aligned position are zero degree position, i.e. aligned position.For three-phase 12/8 utmost point bearing-free switch reluctance motor, a rotor cycle angle is 45 °, so the interval of the every phase winding suspension of motor conducting is 15 °, the stable suspersion of guarantee motor operation like this.Owing to adopting torque and the subregional control strategy of radial suspension force timesharing, each needs the conducting simultaneously of two phase windings constantly, and a phase winding is with producing radial suspension force, and another phase winding produces torque.
The A of take illustrates the bearing-free motor suspension theory as example mutually, rotor is positioned at [15 °, 30 °] time be between floating zone, the magnetic conductance minimum of motor magnetic circuit now, inductance value is minimum and constant, claim that this zone is minimum inductance flat-top district, the bearing-free switch reluctance motor in the present invention utilizes this zone to produce radial suspension force exactly; In addition, because this interval winding inductance is invariable, therefore do not produce torque, with this, realize torque and suspending power decoupling zero.Rotor is positioned at [15 °, 30 °] time, because the magnetic circuit reluctance of cylindrical rotor part is very little with respect to field spider, again because radial suspension force and magnetic circuit reluctance are inversely proportional to, therefore the radial suspension force that the field spider part produces in this interval partly can be ignored with respect to cylindrical rotor, provides the suspending power of bearing-free motor radial suspension mainly to be produced by cylindrical rotor.
Concrete radial suspension force control principle is: α direction radial suspension force is by winding current
i a1
with
i a3
control, when
i a1
?
i a3
the time, α positive direction radial suspension force on product, otherwise, α negative direction radial suspension force produced; In like manner, β direction suspending power is by winding current
i a2
with
i a4
control, when
i a2
?
i a4
the time, β positive direction radial suspension force on product, otherwise, β negative direction radial suspension force produced; α direction and β direction radial suspension force can synthesize the radial suspension force of any direction, therefore, by 4 asymmetric excitations of winding, can produce any radial direction and big or small suspending power, and then realize the suspension function certainly that motor is interval at [15 °, 30 °].In like manner, [0,15 °] and [30 °, 45 °] interval radial suspension force can be produced by B phase and C phase winding respectively, and then realizes the suspension operation in whole rotor cycle.
Rotor is the electronic stage while being positioned at [30 °, 45 °], and now inductance, in elevated areas, produces positive torque.When A suspends the excitation end mutually, because causing the size of current of 4 windings of A phase, asymmetric excitation do not wait, therefore need the master power switch of identical driving signal controlling A phase winding, first make its quadruplet winding current identical, and then utilizing the current control method of switched reluctance machines to be controlled, concrete current control method is that chopper current is controlled or PWM control or mono pulse control etc.In like manner, when the conducting of inductance decline district, be generator operation, control strategy is similar to the electronic stage.
Consider the symmetry of magnetic circuit, two axial magnetic bearing stator numbers of teeth are that even number gets final product.But the coil series, parallel on each magnetic bearing stator or connection in series-parallel are a set of winding, and definition
zaxle positive direction magnetic bearing winding current is
i z1
, Z axis negative direction magnetic bearing winding current is
i z2
.When
i z1
?
i z2
the time, on product
zpositive direction axial suspension power, otherwise, produce
znegative direction axial suspension power; Therefore by these 2 asymmetric excitations of axial winding, can produce the controlled axial suspension power of arbitrary size and direction, thereby realize that axial stable state suspends.
For those skilled in the art, according to above implementation type, can be easy to other advantage and distortion of association.Therefore, the present invention is not limited to above-mentioned instantiation, and it carries out detailed, exemplary explanation as just example to a kind of form of the present invention.In the scope that does not deviate from aim of the present invention, those of ordinary skills replace resulting technical scheme according to above-mentioned instantiation by various being equal to, within all should being included in claim scope of the present invention and equivalency range thereof.
Claims (1)
1. a Three Degree Of Freedom magnetic suspension switched reluctance motor, is characterized in that: comprise radial magnetic field motor stator (1), field spider (2), cylindrical rotor (3), radial magnetic field motor winding (4), magnetic bearing stator (5), magnetic bearing winding (6); Motor stator is comprised of radial magnetic field motor stator (1) and two magnetic bearing stators (5), radial magnetic field motor stator (1) is salient-pole structure with two magnetic bearing stators (5), be wound with a motor winding (4) on each stator tooth of stator (1), be wound with a magnetic bearing winding (6) on each stator tooth of magnetic bearing stator (5); Rotor is axially superposeed and forms by field spider (2) and two cylindrical rotors (3), and field spider (2) is positioned between two cylindrical rotors (3), and field spider (2) is for generation of torque, and cylindrical rotor (3) is for generation of radial and axial suspending power.
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| CN201310418235.8A CN103490572B (en) | 2013-05-28 | 2013-09-16 | A kind of three-degree-of-freemagnetic magnetic suspension switch reluctance motor |
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| CN2013102034455 | 2013-05-28 | ||
| CN201310203445 | 2013-05-28 | ||
| CN201310203445.5 | 2013-05-28 | ||
| CN201310418235.8A CN103490572B (en) | 2013-05-28 | 2013-09-16 | A kind of three-degree-of-freemagnetic magnetic suspension switch reluctance motor |
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| CN103490572B CN103490572B (en) | 2016-08-24 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009601A (en) * | 2014-05-27 | 2014-08-27 | 南京邮电大学 | Duplex-winding bearing-free switched reluctance motor of composite structure |
| CN104393709A (en) * | 2014-09-04 | 2015-03-04 | 林成实 | Magnetic-levitation-type motor |
| CN105422623A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Self-powered type magnetic bearing |
| CN105465175A (en) * | 2015-12-28 | 2016-04-06 | 宁波达奋精工轴承有限公司 | Active magnetic bearing |
| CN105508425A (en) * | 2015-12-28 | 2016-04-20 | 宁波达奋精工轴承有限公司 | Self-generating magnetic bearing |
| CN105680652A (en) * | 2016-04-20 | 2016-06-15 | 山东大学 | Hybrid magnetic circuit double-stator weak-magnetic speed multiplying solid rotor permanent magnet synchronous motor and method thereof |
| CN106787538A (en) * | 2017-02-28 | 2017-05-31 | 扬州大学 | Hybrid magnetic suspension motor |
| CN107547010A (en) * | 2017-09-19 | 2018-01-05 | 南京埃克锐特机电科技有限公司 | A kind of electromagnetic bearing switch reluctance motor system and control method |
| CN107547011A (en) * | 2017-09-19 | 2018-01-05 | 南京埃克锐特机电科技有限公司 | A kind of radial-axial hybrid magnetic bearing switched reluctance motor system and control method |
| CN108418368A (en) * | 2018-04-13 | 2018-08-17 | 山东大学 | A kind of birotor composite excitation permanent magnet synchronous motor for electric vehicle and its method |
| 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 |
| CN108696189A (en) * | 2018-06-30 | 2018-10-23 | 淮阴工学院 | A kind of disc type magnetic suspension switched reluctance motor of journal bearing axial direction electric machine |
| CN108768215A (en) * | 2018-06-30 | 2018-11-06 | 淮阴工学院 | A kind of disc type magnetic suspension switched reluctance motor of radial motor cod |
| CN108809023A (en) * | 2018-06-30 | 2018-11-13 | 淮阴工学院 | A kind of disc type three-degree-of-freemagnetic magnetic suspension switch reluctance motor |
| CN108988517A (en) * | 2018-07-18 | 2018-12-11 | 江苏大学 | A kind of axial suspension switched reluctance machines |
| CN112054648A (en) * | 2020-09-14 | 2020-12-08 | 重庆交通大学 | Bearingless switch reluctance linear motor |
| CN112968559A (en) * | 2021-02-20 | 2021-06-15 | 上海隐冠半导体技术有限公司 | Magnetic suspension rotating device |
| EP4086470A4 (en) * | 2019-12-31 | 2023-01-25 | Gree Electric Appliances, Inc. of Zhuhai | Magnetic suspension bearing, compressor, and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5952756A (en) * | 1997-09-15 | 1999-09-14 | Lockheed Martin Energy Research Corporation | Permanent magnet energy conversion machine with magnet mounting arrangement |
| US20050156475A1 (en) * | 2002-05-24 | 2005-07-21 | Virginia Tech Intellectual Properties, Inc. | PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN103441630A (en) * | 2013-06-20 | 2013-12-11 | 南京航空航天大学 | Three-freedom-degree magnetic levitation switch reluctance motor of 12/4 pole structure |
-
2013
- 2013-09-16 CN CN201310418235.8A patent/CN103490572B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5952756A (en) * | 1997-09-15 | 1999-09-14 | Lockheed Martin Energy Research Corporation | Permanent magnet energy conversion machine with magnet mounting arrangement |
| US20050156475A1 (en) * | 2002-05-24 | 2005-07-21 | Virginia Tech Intellectual Properties, Inc. | PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN103441630A (en) * | 2013-06-20 | 2013-12-11 | 南京航空航天大学 | Three-freedom-degree magnetic levitation switch reluctance motor of 12/4 pole structure |
Cited By (26)
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|---|---|---|---|---|
| CN104009601B (en) * | 2014-05-27 | 2016-02-10 | 南京邮电大学 | A kind of composite construction double winding bearing-free switch reluctance motor |
| CN104009601A (en) * | 2014-05-27 | 2014-08-27 | 南京邮电大学 | Duplex-winding bearing-free switched reluctance motor of composite structure |
| CN104393709A (en) * | 2014-09-04 | 2015-03-04 | 林成实 | Magnetic-levitation-type motor |
| CN105465175B (en) * | 2015-12-28 | 2018-03-09 | 宁波达奋精工轴承有限公司 | A kind of active magnetic bearing |
| CN105422623A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Self-powered type magnetic bearing |
| CN105465175A (en) * | 2015-12-28 | 2016-04-06 | 宁波达奋精工轴承有限公司 | Active magnetic bearing |
| CN105508425A (en) * | 2015-12-28 | 2016-04-20 | 宁波达奋精工轴承有限公司 | Self-generating magnetic bearing |
| CN105680652A (en) * | 2016-04-20 | 2016-06-15 | 山东大学 | Hybrid magnetic circuit double-stator weak-magnetic speed multiplying solid rotor permanent magnet synchronous motor and method thereof |
| CN106787538B (en) * | 2017-02-28 | 2019-05-03 | 扬州大学 | Hybrid magnetic suspension motor |
| CN106787538A (en) * | 2017-02-28 | 2017-05-31 | 扬州大学 | Hybrid magnetic suspension motor |
| CN107547010B (en) * | 2017-09-19 | 2019-03-19 | 南京埃克锐特机电科技有限公司 | A kind of electromagnetic bearing switch reluctance motor system and control method |
| CN107547010A (en) * | 2017-09-19 | 2018-01-05 | 南京埃克锐特机电科技有限公司 | A kind of electromagnetic bearing switch reluctance motor system and control method |
| CN107547011A (en) * | 2017-09-19 | 2018-01-05 | 南京埃克锐特机电科技有限公司 | A kind of radial-axial hybrid magnetic bearing switched reluctance motor system and control method |
| CN108418368A (en) * | 2018-04-13 | 2018-08-17 | 山东大学 | A kind of birotor composite excitation permanent magnet synchronous motor for electric vehicle and its method |
| CN108418368B (en) * | 2018-04-13 | 2023-12-29 | 山东大学 | Double-rotor hybrid excitation permanent magnet synchronous motor and method thereof |
| 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 |
| CN108696189A (en) * | 2018-06-30 | 2018-10-23 | 淮阴工学院 | A kind of disc type magnetic suspension switched reluctance motor of journal bearing axial direction electric machine |
| CN108809023B (en) * | 2018-06-30 | 2020-04-24 | 淮阴工学院 | Disc type three-degree-of-freedom magnetic suspension switched reluctance motor |
| CN108809023A (en) * | 2018-06-30 | 2018-11-13 | 淮阴工学院 | A kind of disc type three-degree-of-freemagnetic magnetic suspension switch reluctance motor |
| CN108768215A (en) * | 2018-06-30 | 2018-11-06 | 淮阴工学院 | A kind of disc type magnetic suspension switched reluctance motor of radial motor cod |
| CN108988517A (en) * | 2018-07-18 | 2018-12-11 | 江苏大学 | A kind of axial suspension switched reluctance machines |
| EP4086470A4 (en) * | 2019-12-31 | 2023-01-25 | Gree Electric Appliances, Inc. of Zhuhai | Magnetic suspension bearing, compressor, and air conditioner |
| US11905994B2 (en) | 2019-12-31 | 2024-02-20 | Gree Electric Appliances, Inc. Of Zhuhai | Magnetic bearing, compressor and air conditioner |
| CN112054648A (en) * | 2020-09-14 | 2020-12-08 | 重庆交通大学 | Bearingless switch reluctance linear motor |
| CN112968559A (en) * | 2021-02-20 | 2021-06-15 | 上海隐冠半导体技术有限公司 | Magnetic suspension rotating device |
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