CN106451834A - Hybrid excitation type magnetic flux switching motor with K-shaped stator cores - Google Patents
Hybrid excitation type magnetic flux switching motor with K-shaped stator cores Download PDFInfo
- Publication number
- CN106451834A CN106451834A CN201610874279.5A CN201610874279A CN106451834A CN 106451834 A CN106451834 A CN 106451834A CN 201610874279 A CN201610874279 A CN 201610874279A CN 106451834 A CN106451834 A CN 106451834A
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- China
- Prior art keywords
- stator core
- phase
- magnetic flux
- rotor
- excitation type
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Classifications
-
- 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
-
- 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
- H02K1/17—Stator cores with permanent magnets
-
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
Abstract
The invention discloses a hybrid excitation type magnetic flux switching motor with K-shaped stator cores, and belongs to the technical field of fabrication of a motor. Permanent magnets, armature windings and single-phase excitation windings are arranged at a stator part, stator cores are in K shapes, each permanent magnet is embedded between adjacent stator cores, the armature windings are three-phase concentrated windings which are wound at inner sides of stator teeth of adjacent K-shaped stator cores at two sides of each permanent magnet in a bridging way, the single-phase excitation windings are wound at outer sides of two stator teeth of each K-shaped stator core in a bridging way, and no permanent magnet and no winding are arranged at a rotor part. The hybrid excitation type magnetic flux switching motor is compact, simple and firm in structure, the no-load magnetic flux of the magnetic flux switching motor is maintained to be dual-polarity characteristic, meanwhile, a hybrid excitation function is achieved, the magnetic flux switching motor has relatively high torque output capability and relatively high power density, the regulation range of an air-gap magnetic field is broaden by adjusting an excitation current, and the magnetic flux switching motor is good in magnetic regulation performance.
Description
Technical field
The invention belongs to technical field of motor manufacture, and in particular to a kind of K shape stator core composite excitation type magnetic flux switching
Motor.
Background technology
Continuous improvement with the new rare-earth permanent magnetic material cost performance such as neodymium iron boron so that with smaller size smaller, more efficient
The rare-earth permanent-magnet electric machine such as the permanent-magnet brushless DC electric machine of the advantages of rate and preferable dynamic corresponding characteristic and permagnetic synchronous motor exists
Increasing industrial drives and SERVO CONTROL field are used widely.But due to the inherent character by permanent magnet material
Impact, the magnetic field produced by permanent magnet is difficult to adjust, and the air-gap field inside magneto is held essentially constant, and this allows for forever
Being difficult to of magneto internal air gap magnetic field is adjusted, and causes its speed adjustable range to be restricted so that in such as Aero-Space, electronic vapour
Car etc. needs wide range speed control direct drive occasion, and the application of magneto receives certain restriction.How the having of air-gap field is realized
Effect adjusts focus and the difficult point for being always magneto research with control.
Mixed field excitation type flux switch motor inherits the plurality of advantages of permanent magnet flux switching motor, such as on rotor both no forever
Magnet, also no winding, high mechanical strength；Permanent magnet is tangentially placed in stator side, it is easy to radiating and cooling, suitable high-speed cruising；
Poly- magnetic effect and stator magnetic linkage bipolarity, contribute to hoisting power density etc..At the same time, by introduce the electrical excitation that aids in around
Group, not only reduces the consumption to rare-earth permanent magnet, additionally it is possible to effectively widen the air-gap field range of accommodation of magneto.
Content of the invention
The present invention is directed to the deficiencies in the prior art, it is therefore intended that proposes a kind of K shape stator core composite excitation type magnetic flux and cuts
Motor is changed, the effective utilization space of the motor arranges electrical excitation winding, by being adjusted to exciting current, has widened air gap magnetic
Field control scope, adjustable magnetic performance is good, compact conformation, simple, firm, with high degree of symmetry, sinusoidal bipolarity magnetic linkage waveform, relatively
Strong torque output capability and higher power density.
For achieving the above object, the technical solution used in the present invention is：
A kind of K shape stator core mixed field excitation type flux switch motor, it is characterised in that including stator, permanent magnet, single-phase
Exciting Windings for Transverse Differential Protection, armature winding and rotor；
The stator is replaced assembled, the filling of two adjacent permanent magnets by six permanent magnets with six K shape stator cores
Magnetic direction is contrary；Across being wound with single-phase Exciting Windings for Transverse Differential Protection, the single-phase Exciting Windings for Transverse Differential Protection on the outside of two stator tooths of each K shape stator core
It is sequentially connected in series by single-phase magnet exciting coil and constitutes, two in groove that the permanent magnet is surrounded with adjacent K shape stator core
The energising polarity of single-phase magnet exciting coil is consistent；Armature winding is provided with the inside of the stator tooth of K shape stator core, positioned at two neighboring K
Armature winding on the stator tooth of shape stator core is mutually bridged；The armature winding is divided into A, B, C threephase armature winding, per mutually electricity
Pivot winding is made up of armature coil sequential series diametrically；The single-phase Exciting Windings for Transverse Differential Protection and the equal concentratred winding of armature winding；
The rotor is located at stator interior, is not provided with permanent magnet and winding on rotor.
In such scheme, the stator and rotor are salient-pole structure.
In such scheme, the material of the K shape stator core is magnetic conduction.
In such scheme, the permanent magnet is Nd-Fe-B permanent magnetic magnet steel.
In such scheme, the single-phase magnet exciting coil, armature coil are all using centralized coil.
In such scheme, the rotor is straight trough rotor.
Compared with prior art, a kind of K shape stator core mixed field excitation type flux switch motor that the present invention is provided has
Following advantage：
1st, highly sinusoidal bipolarity magnetic linkage, the higher power that present invention preserves original permanent magnet flux switching motor is close
The advantages of degree and stronger torque output capability, by adopting K shape stator core, in the premise for not increasing motor additional volumes
Under, the use of permanent magnet being reduced, composite excitation function is realized, whole electric machine structure is simple, compact, firm, it is easy to process, and adjusts
Magnetic property is preferable.
2nd, the armature winding of the present invention and single-phase Exciting Windings for Transverse Differential Protection all adopt concentratred winding, long so as to effectively reduce end
Degree, reduces end effect；It is in addition, rotor is both no permanent magnet and no winding straight trough rotor, on rotor, simple structure, firm,
It is easy to cooling, it is adaptable to high-speed cruising.
Description of the drawings
Fig. 1 is the structural representation of K shape stator core mixed field excitation type flux switch motor of the present invention；
Fig. 2 is that the magnetic flux path in K shape stator core mixed field excitation type flux switch motor work process of the present invention is illustrated
Figure, Fig. 2 (a) is rotor in θ1When magnetic flux path schematic diagram, Fig. 2 (b) be rotor in θ2When magnetic flux path schematic diagram；
The distribution diagram of magnetic line of force that Fig. 3 is worked independently for permanent magnet；
The distribution diagram of magnetic line of force that Fig. 4 is worked independently for electrical excitation；
Fig. 5 is composite excitation magnetic line of force schematic diagram.
In figure：1- stator, 2- permanent magnet, the single-phase Exciting Windings for Transverse Differential Protection of 3-, 4- armature winding, 5- rotor, 301-306- is single-phase to be encouraged
Magnetic coil, 411,412,421,422,431,432- armature coil.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of K shape stator core mixed field excitation type flux switch motor, including stator 1, permanent magnet 2, list
Phase Exciting Windings for Transverse Differential Protection 3, armature winding 4 and rotor 5；Stator 1 and rotor 5 are salient-pole structure；
Stator 1 is replaced assembled, the magnetizing of two adjacent permanent magnets 2 by six permanent magnets 2 with six K shape stator cores
In opposite direction, permanent magnet 2 is the Nd-Fe-B permanent magnetic magnet steel that circumferentially tangential alternating magnetizes, and the material of K shape stator core is magnetic conduction；
Across single-phase Exciting Windings for Transverse Differential Protection 3 is wound with the outside of two stator tooths of each K shape stator core, single-phase Exciting Windings for Transverse Differential Protection 3 is by by single-phase excitation
Coil 301, single-phase magnet exciting coil 302, single-phase magnet exciting coil 303, single-phase magnet exciting coil 304, single-phase magnet exciting coil 305, single-phase
Magnet exciting coil 306 is sequentially connected in series composition, and single-phase magnet exciting coil is all using centralized coil, permanent magnet 2 and adjacent K shape stator
The energising polarity of two single-phase magnet exciting coils in groove that iron core is surrounded is consistent；It is provided with the inside of the stator tooth of K shape stator core
Armature winding 4, the armature winding 4 on the stator tooth of two neighboring K shape stator core is mutually bridged；Armature winding 4 be divided into A,
B, C threephase armature winding, A phase armature winding is made up of with 412 sequential series of armature coil armature coil 411 diametrically, B
Phase armature winding is made up of with 422 sequential series of armature coil armature coil 421 diametrically, and C phase armature winding is by radially
Relative armature coil 431 and 432 sequential series of armature coil composition, armature coil is all using centralized coil；Single-phase excitation
Winding 3 and the equal concentratred winding of armature winding 4；Rotor 5 is located inside stator 1, and rotor 5 is straight trough rotor, to be not provided with permanent magnetism thereon
Body and winding.
A kind of work process of K shape stator core mixed field excitation type flux switch motor is：
As shown in Fig. 2 rotor 5 be located in Fig. 2 (a) position when (θ1=12.86 °), there are two rotors respectively
Tooth is relative with stator tooth, and according to the direction of magnetization of permanent magnet 2, permanent magnet 2 will with mixing magnetic flux produced by single-phase Exciting Windings for Transverse Differential Protection 3
Path along shown by arrow passes stator tooth through air gap entrance rotor tooth neat in contrast, and numerical value maximum；On stator 1
Armature winding 4 induce certain no-load back electromotive force.
(the θ when rotor 5 moves to the position that Fig. 2 (b) is located2=38.57 °), total magnetic flux keeps constant, but flux path
Footpath is just the opposite, and the path along shown by arrow passes rotor tooth through air gap entrance stator tooth neat in contrast；Now electric
Pivot winding 4 sense no-load back electromotive force compared with the no-load back electromotive force in Fig. 2 (a), the identical but opposite polarity of numerical value.
When rotor continuous motion between the position that Fig. 2 (a), (b) are located, the magnetic flux of the inner linkage of armature winding 4 will
It is in constantly mechanical periodicity between positive and negative maximum, the magnetic linkage of motor, counter electromotive force and inductance have height sine.
As the magnetic line of force distribution that the distribution diagram of magnetic line of force that Fig. 3 is worked independently for permanent magnet, Fig. 4 are worked independently for electrical excitation
Figure.When the magnetic potential direction produced by permanent magnet 2 is identical with the electrical excitation magnetic potential direction produced by single-phase Exciting Windings for Transverse Differential Protection 4, then respectively
In armature coil, the magnetic flux of linkage can increase, and so as to produce impact to induction electromotive force, induction electromotive force is improved；With this phase
Instead, if the magnetic potential direction produced by permanent magnet 2 is in opposite direction with electrical excitation magnetic potential produced by single-phase Exciting Windings for Transverse Differential Protection 4, respectively
In armature coil, the magnetic flux of linkage will be reduced so that induction electromotive force reduces.Fig. 5 gives the signal of the composite excitation magnetic line of force
Figure.
Above detailed Jie is carried out to a kind of K shape stator core mixed field excitation type flux switch motor provided by the present invention
Continue, invention applies specific case is set forth to the principle of the present invention and embodiment, to be described, above institute
Only presently preferred embodiments of the present invention is stated, not in order to limit the present invention.All institutes within the spirit and principles in the present invention
Any modification, equivalent and improvement for making etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of K shape stator core mixed field excitation type flux switch motor, it is characterised in that including stator (1), permanent magnet (2),
Single-phase Exciting Windings for Transverse Differential Protection (3), armature winding (4) and rotor (5)；
Stator (1) replaces assembled, two adjacent permanent magnets (2) by six permanent magnets (2) with six K shape stator cores
Magnetizing direction contrary；Across single-phase Exciting Windings for Transverse Differential Protection (3) is wound with the outside of two stator tooths of each K shape stator core, described single-phase
Exciting Windings for Transverse Differential Protection (3) is sequentially connected in series by single-phase magnet exciting coil and constitutes, and permanent magnet (2) are enclosed with adjacent K shape stator core
The energising polarity of two single-phase magnet exciting coils in the groove for becoming is consistent；Armature winding is provided with the inside of the stator tooth of K shape stator core
(4), the armature winding (4) on the stator tooth of two neighboring K shape stator core is mutually bridged；Armature winding (4) are divided into
A, B, C threephase armature winding, is made up of armature coil sequential series diametrically per phase armature winding；The single-phase excitation around
Group (3) and armature winding (4) all concentratred winding；
Described rotor (5) are located at stator (1) inside, and rotor is not provided with permanent magnet and winding on (5).
2. a kind of K shape stator core mixed field excitation type flux switch motor according to claim 1, it is characterised in that institute
State stator (1) and rotor (5) is salient-pole structure.
3. a kind of K shape stator core mixed field excitation type flux switch motor according to claim 1, it is characterised in that institute
The material for stating K shape stator core is magnetic conduction.
4. a kind of K shape stator core mixed field excitation type flux switch motor according to claim 1, it is characterised in that institute
Permanent magnet (2) is stated for Nd-Fe-B permanent magnetic magnet steel.
5. a kind of K shape stator core mixed field excitation type flux switch motor according to claim 1, it is characterised in that institute
Single-phase magnet exciting coil, armature coil are stated all using centralized coil.
6. a kind of K shape stator core mixed field excitation type flux switch motor according to claim 1, it is characterised in that institute
Rotor (5) is stated for straight trough rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874279.5A CN106451834B (en) | 2016-09-30 | 2016-09-30 | A kind of K shapes stator core mixed field excitation type flux switch motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874279.5A CN106451834B (en) | 2016-09-30 | 2016-09-30 | A kind of K shapes stator core mixed field excitation type flux switch motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451834A true CN106451834A (en) | 2017-02-22 |
| CN106451834B CN106451834B (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610874279.5A Active CN106451834B (en) | 2016-09-30 | 2016-09-30 | A kind of K shapes stator core mixed field excitation type flux switch motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106451834B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453573A (en) * | 2017-09-20 | 2017-12-08 | 华中科技大学 | A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles |
| CN108988520A (en) * | 2018-07-25 | 2018-12-11 | 浙江大学 | A kind of double salient-pole electric machine |
| CN110707842A (en) * | 2019-12-03 | 2020-01-17 | 史政齐 | Servo motor for inhibiting reluctance torque pulsation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04117195A (en) * | 1990-09-06 | 1992-04-17 | Secoh Giken Inc | High speed motor |
| CN103051138A (en) * | 2012-12-20 | 2013-04-17 | 东南大学 | Multi-tooth magnetic flux switching permanent magnetic memory motor |
| CN103151859A (en) * | 2013-02-01 | 2013-06-12 | 东南大学 | Magnetic flow switched and surface-mounted type permanent magnet memory motor |
| CN104410180A (en) * | 2014-12-11 | 2015-03-11 | 东南大学 | E-shaped stator core flux switching type hybrid permanent magnet memory motor |
| CN104578659A (en) * | 2015-01-14 | 2015-04-29 | 东南大学 | Flux-switching type parallel hybrid permanent magnet memory motor |
-
2016
- 2016-09-30 CN CN201610874279.5A patent/CN106451834B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04117195A (en) * | 1990-09-06 | 1992-04-17 | Secoh Giken Inc | High speed motor |
| CN103051138A (en) * | 2012-12-20 | 2013-04-17 | 东南大学 | Multi-tooth magnetic flux switching permanent magnetic memory motor |
| CN103151859A (en) * | 2013-02-01 | 2013-06-12 | 东南大学 | Magnetic flow switched and surface-mounted type permanent magnet memory motor |
| CN104410180A (en) * | 2014-12-11 | 2015-03-11 | 东南大学 | E-shaped stator core flux switching type hybrid permanent magnet memory motor |
| CN104578659A (en) * | 2015-01-14 | 2015-04-29 | 东南大学 | Flux-switching type parallel hybrid permanent magnet memory motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453573A (en) * | 2017-09-20 | 2017-12-08 | 华中科技大学 | A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles |
| CN108988520A (en) * | 2018-07-25 | 2018-12-11 | 浙江大学 | A kind of double salient-pole electric machine |
| CN110707842A (en) * | 2019-12-03 | 2020-01-17 | 史政齐 | Servo motor for inhibiting reluctance torque pulsation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106451834B (en) | 2018-08-10 |
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