CN103683571A - Two-degree-of-freedom stator permanent magnet biased permanent magnet bearingless motor - Google Patents
Two-degree-of-freedom stator permanent magnet biased permanent magnet bearingless motor Download PDFInfo
- Publication number
- CN103683571A CN103683571A CN201310724689.8A CN201310724689A CN103683571A CN 103683571 A CN103683571 A CN 103683571A CN 201310724689 A CN201310724689 A CN 201310724689A CN 103683571 A CN103683571 A CN 103683571A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- stator
- core
- rotor
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a two-degree-of-freedom stator permanent magnet biased permanent magnet bearingless motor, and aims to overcome the shortcomings of an existing permanent magnet bearingless motor. The stator permanent magnet biased permanent magnet bearingless motor comprises a motor shell, a rotor and a stator are arranged in the motor shell, the stator comprises a stator core, a left pole core and a right pole core are symmetrically arranged on two sides of the stator core, a torque winding and a suspension winding are arranged in a stator slot of the stator core, an axial magnetized annular stator permanent magnet A and an axial magnetized annular stator permanent magnet B are axially arranged on two sides of the stator core, the rotor comprises a rotor core, and the rotor core is axially provided with a radial magnetized annular rotor permanent magnet and a rotating shaft. The stator permanent magnet biased permanent magnet bearingless motor is simple to control, realizes mutually independent suspension control and torque control, and can generate larger radial suspension force.
Description
Technical field
The present invention relates to motor device technical field, be specifically related to a kind of two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor simple, that can produce larger radial suspension force of controlling.
Background technology
Bearing-free motor has without friction without wearing and tearing, without lubricated, be easy to realize higher rotating speed and more high-power operation, particularly permanent magnet type non-bearing motor wherein has simple in structure, the advantage such as operational reliability is high, volume is little, lightweight, efficiency is high and power density is large, in fields such as flywheel energy storage, high-speed machine tool spindle motor and canned pump, centrifuge, compressor, high-speed micro hard disk drives, has broad application prospects.
At present, existing permanent magnet type non-bearing motor is the suspending power winding that superposes additional on the torque winding by the stator slot at traditional permagnetic synchronous motor, double winding produces suspending windings magnetic field and the torque winding magnetic field of rotation by the identical three-phase alternating-current supply power supply of frequency respectively, and suspending windings field pole logarithm is that PB, torque winding magnetic field are PM, only have between the two while meeting being related to of PB=PM ± 1, suspending windings magnetic field, torque winding magnetic field and rotor permanent magnet magnetic field triple interaction could produce and stablize controlled radial suspension force.By the radial displacement of radial displacement transducer detection rotor, build suspension closed-loop control system, realize rotor stability and suspend.Because torque is to be produced by torque winding magnetic field and permanent magnet magnetic field interactions, and radial suspension force is mainly to be produced by suspending windings magnetic field and permanent magnet magnetic field interactions, and meanwhile, torque winding magnetic field produces and also has certain influence suspending power.When selecting permanent magnet thickness, need consider between the size of radial suspension force and level of torque restricting relation mutually, therefore, limited the generation of radial suspension force; Simultaneously, between suspending windings magnetic field and torque winding magnetic field, there is close coupling, need to adopt complicated decoupling control policy to carry out decoupling zero control to rotary system and suspension system, and suspending power and rotor position angle are closely related, therefore it is less that existing permanent magnet type non-bearing motor has the radial suspension force of generation, control complexity and the lower shortcoming of precision.
Summary of the invention
The object of the invention is to overcome the deficiency of existing permanent magnet type non-bearing motor, provide a kind of control simple, the control that suspends, torque are controlled separate, and can produce the stator permanent magnet biasing permanent magnet type non-bearing motor structure of larger radial suspension force.
The present invention is achieved through the following technical solutions:
Two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor, comprise electric machine casing, in electric machine casing, be provided with rotor, stator, it is characterized in that: described stator comprises stator core (5), stator core (5) bilateral symmetry is provided with left pole core (1), right pole core (2), torque winding (6), suspending windings (7) are set in the stator slot of stator core (5), and stator core (5) vertically both sides is provided with the annular stator permanent magnet A(3 of axial magnetized), annular stator permanent magnet B(4);
Described rotor comprises rotor core (9), and rotor core (9) is provided with ring-shaped rotor permanent magnet (8) and the rotating shaft (10) of diametrical magnetization vertically.
The further Technological improvement plan of the present invention is:
Described annular stator permanent magnet A(3), annular stator permanent magnet B(4) for motor provides quiescent biasing magnetic flux (11), suspending windings (7) is DC power supply, for motor provides to suspend, control magnetic flux (12), rotor is interacted and is produced radial suspension force by quiescent biasing magnetic flux (11), the control magnetic flux (12) that suspends.
The further Technological improvement plan of the present invention is:
Described annular stator permanent magnet A(3), annular stator permanent magnet B(4) and ring-shaped rotor permanent magnet (8) make for rare earth permanent-magnetic material.
The further Technological improvement plan of the present invention is:
Described left pole core (1), right pole core (2), stator core (5) and rotor core (9) are made by permeability magnetic material.
The present invention compared with prior art, there is following obvious advantage, the present invention provides quiescent biasing magnetic flux by the annular stator permanent magnet of two axial magnetizeds, suspending windings is passed through by DC power supply, producing suspends controls magnetic flux, both mutual superpositions, guaranteed stator, air gap between rotor is even, realizing rotor stability suspends, suspend and control, torque is controlled separate, not only can produce larger radial suspension force, and the simple advantage with being easy to realize of control, symmetrical use in pairs in a five degree of freedom suspension support system, can be widely used in flywheel energy storage, various high-speed machine tool spindle motors and canned pump class, centrifuge, compressor, the fields such as high-speed small-size hard disk drive.
Accompanying drawing explanation
Fig. 1 is axial arrangement schematic diagram of the present invention;
Fig. 2 is that winding of the present invention is arranged and radial magnetic circuit schematic diagram.
Embodiment
As shown in Figure 1, 2, the present invention includes electric machine casing, in electric machine casing, be provided with rotor, stator, described stator comprises stator core 5, stator core 5 bilateral symmetry are provided with left pole core 1, right pole core 2, and torque winding 6, suspending windings 7 are set in the stator slot of stator core 5, and torque winding 6 is positioned at stator slot skin, suspending windings 7 is positioned at stator slot internal layer, and stator core 5 vertically both sides is provided with annular stator permanent magnet A3, the annular stator permanent magnet B4 of axial magnetized, rotor comprises rotor core 9, and rotor core 9 is provided with ring-shaped rotor permanent magnet 8 and the rotating shaft 10 of diametrical magnetization vertically, annular stator permanent magnet A3, annular stator permanent magnet B4 provides quiescent biasing magnetic flux 11 for motor, quiescent biasing magnetic flux 11 magnetic circuits are: magnetic flux is from annular stator permanent magnet A3 or the annular stator permanent magnet B4N utmost point, by left pole core 1 or right pole core 2, air gap, rotor core (9), ring-shaped rotor permanent magnet 8, air gap, annular stator permanent magnet A3 or the annular stator permanent magnet B4S utmost point are got back in stator core 5, suspending windings 7 is DC power supply, for providing to suspend, motor controls magnetic flux 12, the magnetic circuit that suspending windings 7 produces the control magnetic flux 12 that suspends is: motor upside stator core 5, motor upside air gap, rotor, motor downside air gap, motor downside stator core 5, pass through again motor stator yoke, form closed-loop path, rotor is by quiescent biasing magnetic flux 11, suspend and control magnetic flux 12 interaction generation radial suspension forces, annular stator permanent magnet A3, annular stator permanent magnet B4 and ring-shaped rotor permanent magnet 8 adopts good rare-earth permanent magnet or the ferrite permanent magnet of magnetic property to make, and torque winding 6 and suspending windings 7 all adopt invades paint oven dry after the good solenoid coiling of conduction and form, left pole core 1, right pole core 2, stator core 5 and rotor core 9 are made by permeability magnetic material.
As shown in Figure 2, stator slot is outer for torque winding 6, arranges identical with common permagnetic synchronous motor; Suspending windings 7 is divided into x direction and controls winding and y direction suspension control winding, and x direction is controlled winding and comprised winding 1,2,3 and winding 7,8,9, and wherein winding 1,7 is in series, and 2,8 are in series, and 3,9 are in series, and then compose in parallel x direction control winding; The suspension of y direction is controlled winding and is comprised winding 4,5,6 and winding 10,11,12, and wherein winding 4,10 is in series, and 5,11 are in series, and 6,12 are in series, and then composes in parallel y direction control winding.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (4)
1. two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor, comprise electric machine casing, in electric machine casing, be provided with rotor, stator, it is characterized in that: described stator comprises stator core (5), stator core (5) bilateral symmetry is provided with left pole core (1), right pole core (2), torque winding (6), suspending windings (7) are set in the stator slot of stator core (5), and stator core (5) vertically both sides is provided with the annular stator permanent magnet A(3 of axial magnetized), annular stator permanent magnet B(4);
Described rotor comprises rotor core (9), and rotor core (9) is provided with ring-shaped rotor permanent magnet (8) and the rotating shaft (10) of diametrical magnetization vertically.
2. two-freedom stator permanent magnet according to claim 1 biasing permanent magnet type non-bearing motor, it is characterized in that: described annular stator permanent magnet A(3), annular stator permanent magnet B(4) provide quiescent biasing magnetic flux (11) for motor, suspending windings (7) is DC power supply, for motor provides to suspend, control magnetic flux (12), rotor is interacted and is produced radial suspension force by quiescent biasing magnetic flux (11), the control magnetic flux (12) that suspends.
3. two-freedom stator permanent magnet according to claim 1 and 2 biasing permanent magnet type non-bearing motor, is characterized in that: described annular stator permanent magnet A(3), annular stator permanent magnet B(4) and ring-shaped rotor permanent magnet (8) make for rare earth permanent-magnetic material.
4. two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor according to claim 1 and 2, is characterized in that: described left pole core (1), right pole core (2), stator core (5) and rotor core (9) are made by permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724689.8A CN103683571B (en) | 2013-12-25 | 2013-12-25 | Two-freedom stator permanent magnet is biased permanent magnet type non-bearing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724689.8A CN103683571B (en) | 2013-12-25 | 2013-12-25 | Two-freedom stator permanent magnet is biased permanent magnet type non-bearing motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103683571A true CN103683571A (en) | 2014-03-26 |
| CN103683571B CN103683571B (en) | 2015-11-04 |
Family
ID=50320202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724689.8A Active CN103683571B (en) | 2013-12-25 | 2013-12-25 | Two-freedom stator permanent magnet is biased permanent magnet type non-bearing motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103683571B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809030A (en) * | 2018-06-30 | 2018-11-13 | 淮阴工学院 | A kind of two-freedom bearing-free switch reluctance motor of outer winding control |
| CN111022498A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial mixed magnetic bearing without winding |
| CN111022499A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial large-bearing-capacity hybrid magnetic bearing |
| CN113765321A (en) * | 2021-08-20 | 2021-12-07 | 江苏大学 | Double-suspension-force bearing-free asynchronous motor |
| CN117307603A (en) * | 2023-09-11 | 2023-12-29 | 淮阴工学院 | Mixed excitation magnetic bearing with independent radial and axial levitation force |
| CN117307603B (en) * | 2023-09-11 | 2024-06-11 | 淮阴工学院 | Mixed excitation magnetic bearing with independent radial and axial levitation force |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158648A1 (en) * | 2000-05-12 | 2001-11-28 | Levitronix LLC | Electromagnetic rotary drive |
| CN101666353A (en) * | 2009-09-23 | 2010-03-10 | 江苏大学 | Active magnetic bearing using bias magnetic flux commonly in radial direction and in axial direction and control method thereof |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN102305242A (en) * | 2011-08-15 | 2012-01-04 | 江苏大学 | Radial-axial three-degree-of-freedom alternating current-direct current hybrid magnetic bearing |
| CN102843015A (en) * | 2012-09-06 | 2012-12-26 | 东南大学 | Linearly-rotating two-degrees-of-freedom magnetic levitation bearing-free permanent magnetic actuator |
| CN203617799U (en) * | 2013-12-25 | 2014-05-28 | 淮阴工学院 | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor |
-
2013
- 2013-12-25 CN CN201310724689.8A patent/CN103683571B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158648A1 (en) * | 2000-05-12 | 2001-11-28 | Levitronix LLC | Electromagnetic rotary drive |
| CN101666353A (en) * | 2009-09-23 | 2010-03-10 | 江苏大学 | Active magnetic bearing using bias magnetic flux commonly in radial direction and in axial direction and control method thereof |
| CN102305242A (en) * | 2011-08-15 | 2012-01-04 | 江苏大学 | Radial-axial three-degree-of-freedom alternating current-direct current hybrid magnetic bearing |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN102843015A (en) * | 2012-09-06 | 2012-12-26 | 东南大学 | Linearly-rotating two-degrees-of-freedom magnetic levitation bearing-free permanent magnetic actuator |
| CN203617799U (en) * | 2013-12-25 | 2014-05-28 | 淮阴工学院 | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809030A (en) * | 2018-06-30 | 2018-11-13 | 淮阴工学院 | A kind of two-freedom bearing-free switch reluctance motor of outer winding control |
| WO2020001293A1 (en) * | 2018-06-30 | 2020-01-02 | 淮阴工学院 | External winding controlled, two-degree-of-freedom, bearingless, switched reluctance motor |
| US11418097B2 (en) | 2018-06-30 | 2022-08-16 | Huaiyin Institute Of Technology | External winding controlled, two-degree-of-freedom, bearingless, switched reluctance motor |
| CN111022498A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial mixed magnetic bearing without winding |
| CN111022499A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial large-bearing-capacity hybrid magnetic bearing |
| CN111022498B (en) * | 2019-12-31 | 2023-09-29 | 淮阴工学院 | Radial winding-free hybrid magnetic bearing |
| CN111022499B (en) * | 2019-12-31 | 2023-09-29 | 淮阴工学院 | Radial large bearing capacity hybrid magnetic bearing |
| CN113765321A (en) * | 2021-08-20 | 2021-12-07 | 江苏大学 | Double-suspension-force bearing-free asynchronous motor |
| CN113765321B (en) * | 2021-08-20 | 2022-09-16 | 江苏大学 | Double-suspension-force bearing-free asynchronous motor |
| CN117307603A (en) * | 2023-09-11 | 2023-12-29 | 淮阴工学院 | Mixed excitation magnetic bearing with independent radial and axial levitation force |
| CN117307603B (en) * | 2023-09-11 | 2024-06-11 | 淮阴工学院 | Mixed excitation magnetic bearing with independent radial and axial levitation force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103683571B (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103683779B (en) | Stator permanent magnet biasing permanent magnet type non-bearing motor | |
| CN203617799U (en) | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor | |
| CN103051133B (en) | Parallel-magnetic-cihybrid-excitation hybrid-excitation permanent magnet motor | |
| CN103441592A (en) | Novel magnetic flux adjustable permanent magnet synchronous motor | |
| WO2020191815A1 (en) | Series magnetic circuit-type double-layer hybrid permanent magnet memory motor | |
| CN108847725B (en) | Stator permanent magnet type sheet type bearingless switched reluctance motor | |
| CN103683571B (en) | Two-freedom stator permanent magnet is biased permanent magnet type non-bearing motor | |
| CN102522865B (en) | Multi-stator arc linear motor capable of reducing torque fluctuation | |
| CN108880152B (en) | Double-stator hybrid excitation magnetic suspension switched reluctance motor | |
| CN106015331A (en) | Low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing | |
| CN105471212A (en) | Rotation linear permanent magnetism motor | |
| CN103939465B (en) | A kind of Simple Freedom Magnetic Bearing | |
| CN108599500B (en) | Stator permanent magnet type outer rotor sheet bearingless asynchronous motor | |
| CN108696078B (en) | Magnetic suspension cage type asynchronous spindle motor | |
| CN107769501B (en) | A kind of disc type axial flux motor | |
| CN204408154U (en) | A kind of double winding modular stator permanent-magnet type magnetic flux switches bearing-free motor | |
| CN203632512U (en) | Stator permanent magnet biased permanent magnet type bearingless motor | |
| CN104104197B (en) | A kind of axial permanent magnetic offset hybrid magnetic bearing switched reluctance machines | |
| CN204284204U (en) | A kind of low power consumption permanent magnet biased axial hybrid magnetic bearing | |
| CN108599505A (en) | A kind of five degrees of freedom without bearing switched reluctance machines | |
| CN103490577A (en) | Stator permanent magnet vernier motor with modules evenly distributed at circumference | |
| CN206195572U (en) | Two stators do not have bearing magnetic flow reverse motor | |
| CN108696191A (en) | A kind of integrated form five degrees of freedom without bearing asynchronous machine | |
| Zhang et al. | Analysis and comparison of axial flux PM synchronous motor and induction motor | |
| CN205725388U (en) | A kind of multiple stators mixed magnetic circuit permagnetic synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171124 Address after: 223001 Beijing North Road, Jiangpu District, Huaian City, Jiangsu Province, No. 103 Patentee after: Jiangpu Huaian District Science and technology transformation service center Address before: While the economic and Technological Development Zone of Jiangsu Province, Huaian City, 223005 East Road No. 1 Patentee before: Huaijin Polytechnical College |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 223001 No. 58, Qinghe South Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee after: Huai'an qingjiangpu district market supervision comprehensive service center Address before: 223001 No.103, Beijing North Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee before: Jiangpu Huaian District Science and technology transformation service center |
|
| TR01 | Transfer of patent right |