CN106451834B - A kind of K shapes stator core mixed field excitation type flux switch motor - Google Patents
A kind of K shapes stator core mixed field excitation type flux switch motor Download PDFInfo
- Publication number
- CN106451834B CN106451834B CN201610874279.5A CN201610874279A CN106451834B CN 106451834 B CN106451834 B CN 106451834B CN 201610874279 A CN201610874279 A CN 201610874279A CN 106451834 B CN106451834 B CN 106451834B
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- stator
- stator core
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- phase
- armature winding
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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 kind of K shapes stator core mixed field excitation type flux switch motors, belong to technical field of motor manufacture, the stationary part of motor is equipped with permanent magnet, armature winding, single-phase Exciting Windings for Transverse Differential Protection, stator core is K shapes, permanent magnet is inlaid between adjacent stator core, armature winding is three-phase concentratred winding on the inside of the stator tooth for the adjacent K shapes stator core for being wound on permanent magnet both sides, for single-phase Exciting Windings for Transverse Differential Protection on the outside of two stator tooths for being wound on each K shapes stator core, rotor portion does not install any permanent magnet and winding.Structure of the invention is compact, simple, firm, while it is bipolarity feature to remain flux switch motor zero load magnetic linkage, realize composite excitation function, with stronger torque output capability and higher power density, by the way that exciting current is adjusted, air-gap field adjustable range is widened, adjustable magnetic is functional.
Description
Technical field
The invention belongs to technical field of motor manufacture, and in particular to a kind of K shapes stator core composite excitation type magnetic flux switching
Motor.
Background technology
With the continuous improvement of the new rare-earth permanent magnetic materials cost performance such as neodymium iron boron so that have smaller size smaller, more efficient
The rare-earth permanent-magnet electric machines such as the permanent-magnet brushless DC electric machine and permanent magnet synchronous motor of the advantages that rate and preferable dynamic individual features exist
More and more industrial drives and SERVO CONTROL field are used widely.But due to the inherent characteristic by permanent-magnet material
It influences, magnetic field is difficult to adjust caused by permanent magnet, and the air-gap field inside magneto is held essentially constant, this is allowed for forever
Magneto internal air gap magnetic field is difficult to adjust, its speed adjustable range is caused to be restricted so that in such as aerospace, electronic vapour
Vehicle etc. needs wide range speed control to directly drive occasion, and the application of magneto receives certain limitation.How the having of air-gap field is realized
It is always the hot and difficult issue of magneto research that effect, which is adjusted with control,.
Mixed field excitation type flux switch motor inherits the plurality of advantages of permanent magnet flux switching motor, as on rotor both without forever
Magnet, also without winding, high mechanical strength；Permanent magnet is tangentially placed in stator side, is easy to heat dissipation 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 auxiliary electrical excitation around
Group not only reduces the dosage to rare-earth permanent magnet, additionally it is possible to effectively widen the air-gap field adjustable range of magneto.
Invention content
The present invention is in view of the deficiencies of the prior art, it is therefore intended that proposes that a kind of K shapes stator core composite excitation type magnetic flux is cut
Motor is changed, which has effectively widened air gap magnetic using arrangement space electrical excitation winding by the way that exciting current is adjusted
Field control range, adjustable magnetic performance is good, compact-sized, simple, firm, the bipolarity magnetic linkage waveform with high degree of symmetry, sine, compared with
Strong torque output capability and higher power density.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of K shapes stator core mixed field excitation type flux switch motor, which is characterized in that including stator, single-phase excitation around
Group, armature winding and rotor；
The stator is replaced by six permanent magnets with six K shape stator cores assembled, and two adjacent permanent magnets are filled
Magnetic direction is opposite；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 cores
It is sequentially connected in series and is formed by single-phase magnet exciting coil, two in slot that the permanent magnet is surrounded with adjacent K shapes stator core
The energization polarity of single-phase magnet exciting coil is consistent；It is equipped with armature winding on the inside of the stator tooth of K shape stator cores, is located at two neighboring K
Armature winding on the stator tooth of shape stator core mutually bridges；The armature winding is divided into A, B, C threephase armature winding, per mutually electricity
Pivot winding is made 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, and permanent magnet and winding are not provided on rotor.
In said program, the stator and rotor are salient-pole structure.
In said program, the material of the K shapes stator core is magnetic conduction.
In said program, the permanent magnet is Nd-Fe-B permanent magnetic magnet steel.
In said program, the single-phase magnet exciting coil, armature coil are all made of centralized coil.
In said program, the rotor is straight trough rotor.
Compared with prior art, a kind of K shapes stator core mixed field excitation type flux switch motor provided by the invention has
Following advantage：
1, present invention preserves the bipolarity magnetic linkage of the height of original permanent magnet flux switching motor sine, higher power are close
The advantages that degree and stronger torque output capability, by using K shape stator cores, in the premise for not increasing motor additional volumes
Under, the use of permanent magnet is reduced, realizes composite excitation function, entire electric machine structure is simple, compact, firm, easy to process, adjusts
Magnetic property is preferable.
2, armature winding of the invention and single-phase Exciting Windings for Transverse Differential Protection all use concentratred winding, long to effectively reduce end
Degree, reduces end effect；It is simple in structure, firm both without permanent magnet or without winding on rotor in addition, rotor is straight trough rotor,
It is easy to cooling, is suitable for high-speed cruising.
Description of the drawings
Fig. 1 is the structural schematic diagram of K shapes stator core mixed field excitation type flux switch motor of the present invention；
Fig. 2 is the magnetic flux path signal in the K shapes stator core mixed field excitation type flux switch motor course of work of the present invention
Figure, Fig. 2 (a) are rotor in θ1When magnetic flux path schematic diagram, Fig. 2 (b) be rotor in θ2When magnetic flux path schematic diagram；
Fig. 3 is the distribution diagram of magnetic line of force that permanent magnet works independently；
Fig. 4 is the distribution diagram of magnetic line of force that electrical excitation works independently；
Fig. 5 is composite excitation magnetic line of force schematic diagram.
In figure：1- stators, 2- permanent magnets, the single-phase Exciting Windings for Transverse Differential Protection of 3-, 4- armature winding, 5- rotors, 301-306- is single-phase to be encouraged
Magnetic coil, 411,412,421,422,431,432- armature coils.
Specific implementation mode
The present invention will be further described below with reference to the drawings.
As shown in Figure 1, a kind of K shapes stator core mixed field excitation type flux switch motor, including stator 1, single-phase excitation around
Group 3, armature winding 4 and rotor 5；Stator 1 and rotor 5 are salient-pole structure；
Stator 1 is replaced by six permanent magnets 2 with six K shape stator cores assembled, and two adjacent permanent magnets 2 magnetize
On the contrary, permanent magnet 2 is the Nd-Fe-B permanent magnetic magnet steel that circumferentially tangential alternating magnetizes, the material of K shape stator cores is magnetic conduction in direction；
Across being wound with single-phase Exciting Windings for Transverse Differential Protection 3 on the outside of two stator tooths of each K shape stator cores, single-phase Exciting Windings for Transverse Differential Protection 3 is by by single-phase excitation
It is 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 made of centralized coil, permanent magnet 2 and adjacent K shapes stator
The energization polarity of two single-phase magnet exciting coils in the slot that iron core is surrounded is consistent；It is equipped on the inside of the stator tooth of K shape stator cores
Armature winding 4,4 phase of the armature winding bridging being located on the stator tooth of two neighboring K shapes stator core；Armature winding 4 divide for A,
B, C threephase armatures winding, A phases armature winding are made of armature coil 411 diametrically with 412 sequential series of armature coil, B
Phase armature winding is made of armature coil 421 diametrically with 422 sequential series of armature coil, and C phase armature winding is by radial direction
Opposite armature coil 431 is formed with 432 sequential series of armature coil, and armature coil is all made of centralized coil；Single-phase excitation
4 equal concentratred winding of winding 3 and armature winding；Rotor 5 is located inside stator 1, and rotor 5 is straight trough rotor, is not provided with permanent magnetism thereon
Body and winding.
A kind of course of work of K shapes stator core mixed field excitation type flux switch motor is：
As shown in Fig. 2, (θ when rotor 5 is in the position where Fig. 2 (a)1=12.86 °), there are two rotors respectively
Tooth is opposite with stator tooth, and according to the direction of magnetization of permanent magnet 2, magnetic flux is mixed caused by permanent magnet 2 and single-phase Exciting Windings for Transverse Differential Protection 3 will
It is pierced by stator tooth along the path of shown by arrow and enters rotor tooth neat in contrast by air gap, and numerical value is maximum；On stator 1
Armature winding 4 induce certain no-load back electromotive force.
(θ when position where rotor 5 moves to Fig. 2 (b)2=38.57 °), total magnetic flux remains unchanged, but flux path
Diameter is just the opposite, and being pierced by rotor tooth along the path of shown by arrow enters stator tooth neat in contrast by air gap；It is electric at this time
The no-load back electromotive force that pivot winding 4 incudes is compared with the no-load back electromotive force in Fig. 2 (a), and numerical value is identical but polarity is opposite.
When rotor continuously moves between the position where Fig. 2 (a), (b), the magnetic flux of 4 inner linkage of armature winding will
It is in constantly mechanical periodicity between positive and negative maximum value, magnetic linkage, counter electromotive force and the inductance of motor have height sine.
If Fig. 3 is the distribution diagram of magnetic line of force that permanent magnet works independently, Fig. 4 is the magnetic line of force distribution that electrical excitation works independently
Figure.When the magnetic potential direction caused by the permanent magnet 2 is identical as electrical excitation magnetic potential direction caused by single-phase Exciting Windings for Transverse Differential Protection 4, then respectively
The magnetic flux of linkage can increase in armature coil, and to be had an impact to induced electromotive force, induced electromotive force is improved；With this phase
Instead, if magnetic potential direction caused by permanent magnet 2 is opposite with electrical excitation magnetic potential direction caused by single-phase Exciting Windings for Transverse Differential Protection 4, respectively
The magnetic flux of linkage will be reduced in armature coil so that induced electromotive force reduces.Fig. 5 gives the signal of the composite excitation magnetic line of force
Figure.
Detailed Jie has been carried out to a kind of K shapes stator core mixed field excitation type flux switch motor provided by the present invention above
It continues, invention applies specific cases to be expounded the principle of the present invention and embodiment, is noted that the above institute
Only presently preferred embodiments of the present invention is stated, is not intended to limit the invention.Institute all within the spirits and principles of the present invention
The all any modification, equivalent and improvement etc. of work, should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of K shapes stator core mixed field excitation type flux switch motor, which is characterized in that including stator (1), single-phase excitation around
Group (3), armature winding (4) and rotor (5)；
The stator (1) replaces assembled, two adjacent permanent magnets (2) by six permanent magnets (2) with six K shape stator cores
Magnetizing direction it is opposite；It is described single-phase across being wound with single-phase Exciting Windings for Transverse Differential Protection (3) on the outside of two stator tooths of each K shape stator cores
Exciting Windings for Transverse Differential Protection (3) is sequentially connected in series by single-phase magnet exciting coil to be formed, and the permanent magnet (2) is enclosed with adjacent K shapes stator core
At slot in two single-phase magnet exciting coils energization polarity it is consistent；Armature winding is equipped on the inside of the stator tooth of K shape stator cores
(4), the armature winding (4) being located on the stator tooth of two neighboring K shapes stator core mutually bridges；The armature winding (4) is divided into
A, B, C threephase armature winding is made of per phase armature winding armature coil sequential series diametrically；The single-phase excitation around
Group (3) and armature winding (4) equal concentratred winding；
The rotor (5) is located at stator (1) inside, and rotor is not provided with permanent magnet and winding on (5).
2. a kind of K shapes stator core mixed field excitation type flux switch motor according to claim 1, which is characterized in that institute
It is salient-pole structure to state stator (1) and rotor (5).
3. a kind of K shapes stator core mixed field excitation type flux switch motor according to claim 1, which is characterized in that institute
The material for stating K shape stator cores is magnetic conduction.
4. a kind of K shapes stator core mixed field excitation type flux switch motor according to claim 1, which is characterized in that institute
It is Nd-Fe-B permanent magnetic magnet steel to state permanent magnet (2).
5. a kind of K shapes stator core mixed field excitation type flux switch motor according to claim 1, which is characterized in that institute
State single-phase magnet exciting coil, armature coil is all made of centralized coil.
6. a kind of K shapes stator core mixed field excitation type flux switch motor according to claim 1, which is characterized in that institute
It is straight trough rotor to state rotor (5).
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 |
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| Publication Number | Publication Date |
|---|---|
| CN106451834A CN106451834A (en) | 2017-02-22 |
| CN106451834B true CN106451834B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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Families Citing this family (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 |
| CN108988520B (en) * | 2018-07-25 | 2019-07-23 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04117195A (en) * | 1990-09-06 | 1992-04-17 | Secoh Giken Inc | High speed motor |
| CN103051138B (en) * | 2012-12-20 | 2015-04-15 | 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 |
| CN104578659B (en) * | 2015-01-14 | 2017-09-15 | 东南大学 | A kind of Magneticflux-switching type hybrid permanent magnet memory electrical machine in parallel |
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