CN106451976B - E shaped iron core mixed excited magnetic pass switch motor - Google Patents
E shaped iron core mixed excited magnetic pass switch motor Download PDFInfo
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- CN106451976B CN106451976B CN201611005861.4A CN201611005861A CN106451976B CN 106451976 B CN106451976 B CN 106451976B CN 201611005861 A CN201611005861 A CN 201611005861A CN 106451976 B CN106451976 B CN 106451976B
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 99
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 36
- 230000005284 excitation Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 14
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
-
- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/524—Fastening salient pole windings or connections thereto applicable to stators only for U-shaped, E-shaped or similarly shaped cores
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to a kind of E shaped iron core mixed excited magnetic pass switch motors, it include the stator and rotor for being salient-pole structure, wherein stator includes E sections core unit, the permanent magnet between adjacent E sections core unit and the armature coil and magnet exciting coil that even number is circumferentially arranged successively again, the equal cutting orientation magnetizing of permanent magnet, and the magnetizing direction of two adjacent permanent magnets is opposite, the adjacent armatures tooth of adjacent E sections core unit and folded set of permanent magnets are at a stator poles, it is arranged with armature coil in each stator poles, with the symmetrical N in the stator center of circlesA phase armature winding is formed after/m armature coil series connection, wherein NsFor the number of poles of stator, m is number of motor phases, it is characterised in that: goes back magnet exciting coil described in winding in each stator poles, and the exciting current that the magnet exciting coil in adjacent stator pole applies is contrary, forms excitation winding after each magnet exciting coil series connection.After adopting the above structure, the present invention, which does not need additional copper loss, can obtain maximum permanent magnet flux linkage, and adjustable magnetic range is big.
Description
Technical field
The present invention relates to the technical fields of motor, refer specifically to a kind of technology of E shaped iron core mixed excited magnetic pass switch motor
Field.
Background technique
Flux switch permanent magnet motor is a kind of new structural stator permanent magnetic type double salient-pole electric machine, its permanent magnetic steel and electricity
Pivot winding is all located on stator, and both without winding or without permanent magnet on rotor.It is reliable for operation since its structure is simple, it is easy to scattered
Heat, and also have many advantages, such as that high power density, high efficiency, load capacity are strong, can get height sine back-emf, and being considered can
Conventional rotors permanent magnet-type motor is substituted, with good application prospect.
It is one of flux switch permanent magnet motor that E-type magnetic, which leads to switch permanent magnet motor, and stator core is by silicon steel plate stacking
It forms, and stator core uses E font silicon steel sheet, such as (volume 28 of Proceedings of the CSEE in publication on July 25th, 2008
21st phase page 96) on by Ji Jinghua propose " working principle and performance evaluation of Novel stator magneto fault-tolerant motor " in just
Disclose such motor, the stationary part of the motor by the stator core of E type and set of permanent magnets at, permanent magnet along the circumferential direction between
Every distribution, and each permanent magnet is clipped between two adjacent E type stator cores, the armature tooth of two adjacent E type stator cores
Armature winding is wound with together with folded permanent magnet, without winding in the center tooth of E type stator core.It is cut using this E-type magnetic is logical
Magneto is changed, permanent-magnet material can be not only saved, and due to the presence of center tooth, so that flux switch permanent magnet motor also has
Fault-tolerant operation ability.
However, above-mentioned E-type magnetic leads to switch permanent magnet motor due to there was only permanent magnet excitation, adjustable magnetic ability is limited.For this person
Design tool again there are two the mixed excited magnetic pass switch motors of magnetic potential source (i.e. with permanent magnet and excitation winding) to come, such as
" motor and Electronic Engineering Association's magnetics volume " (the IEEE TRANSACTIONS ON published on October 10th, 2009
MAGNETICS), page 4728 to page 4731 of the phase of volume 45 the 10th it is upper disclosed proposed by professor Hua Wei it is " a kind of novel
Hybrid Vehicle mixed excited magnetic pass switch motor ".And " motor and electronic engineering that for another example on May 4th, 2011 publishes
Shi Xiehui Vehicle Technology volume " (IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY), volume 60 the 4th phase the
A kind of page 1365 to page 1373 upper disclosed " the novel electric/hybrid automobiles proposed by Chen Jintao (J.T.cheng)
With mixed excited magnetic pass switch motor ", the two joined excitation winding, by changing the size of current of excitation winding,
To obtain the adjustable magnetic ability for increasing magnetic or weak magnetic, thus it can preferably overcome the defect of the logical switch permanent magnet motor of simple E-type magnetic.But
The addition of the former excitation winding sacrifices the space of permanent magnet, inevitably reduces air gap flux density, and power density
It can also reduce with torque etc., if necessary to improve magnetic linkage (increasing magnetic), then need to apply in excitation winding and increase magnetoelectricity stream, but this is again
It will increase additional copper loss.And the motor of the latter's design includes the stator 1 ' and rotor 2 ' for being salient-pole structure, wherein stator is again
Include multiple E sections core units 11 ' being circumferentially arranged successively, the permanent magnet 12 ' between adjacent E sections core unit with
And armature coil 13 ' and magnet exciting coil 14 ', as shown in Figure 1.Lead to switch permanent magnet motor since magnet exciting coil 14 ' is wound on E-type magnetic
E sections core unit 11 ' intermediate fault-tolerant teeth on, when increasing magnetic (exciting current be greater than 0), i.e., be passed through in excitation winding positive
Exciting current, above structure can aggravate the saturation of stator core, increase iron core magnetic resistance, result in its increase magnetic range very little (see
Figure 18 in its paper), it could even be possible to magnetic field does not enhance, decline instead, the effect of the adjustable magnetic as shown in 4 dotted line of this specification attached drawing
Fruit.That is, the motor is when it is desirable that increase magnetic, magnetic linkage can become larger, but this poor ability, or even complete with the result of hope increasing magnetic
On the contrary, i.e. magnetic linkage is possible to become smaller.And this motor can equally cause the part saturation of stator core in weak magnetic, so that iron core magnetic
Resistance increases, and leads to its weak magnetic adjustable range also very little.Therefore existing E shaped iron core mixed excited magnetic pass switching electricity is need
It is improved in further.
Summary of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide one kind again without additional copper
Consumption can obtain maximum permanent magnet flux linkage and the big E shaped iron core mixed excited magnetic pass switch motor of adjustable magnetic range.
The technical scheme of the invention to solve the technical problem is: a kind of E shaped iron core mixed excited magnetic pass switching
Motor includes the stator and rotor for being salient-pole structure, and wherein stator includes the E type that even number is circumferentially arranged successively again
Iron core unit, the permanent magnet between adjacent E sections core unit and armature coil and magnet exciting coil, the permanent magnet are equal
Cutting orientation magnetizing, and two adjacent permanent magnets magnetizing direction on the contrary, adjacent E sections core unit adjacent armatures tooth and folded permanent magnetism
Body forms a stator poles, the armature coil is arranged in each stator poles, with the symmetrical N in the stator center of circles/ m armature
A phase armature winding is formed after coil series connection, wherein NsFor the number of poles of stator, m is number of motor phases, it is characterised in that: each described fixed
Magnet exciting coil described in the extremely upper also winding of son, and the exciting current that the magnet exciting coil in adjacent stator pole applies is contrary, respectively
Excitation winding is formed after magnet exciting coil series connection.
In the above scheme, preferably excitation winding and armature winding are all made of centralized winding, to reduce end copper
Consumption.
In the above embodiments, the rotor can be designed to straight pole, such as consider the relationship of motor cogging torque and harmonic wave,
The rotor is just needed using oblique pole.
Compared with prior art, since magnet exciting coil of the invention is wound in stator salient poles, and in adjacent stator pole
The exciting current that magnet exciting coil applies is contrary, forms excitation winding after all magnet exciting coil series connection, therefore in adjustable magnetic, when
After excitation winding is passed through electric current, exciting current can form a bias field, the bias field meeting at corresponding stator salient poles
Make the magnetic linkage of symmetrical armature coil in every phase respectively upwards, offset downward, i.e., the bias field makes fixed where armature coil
Flux density in sub- iron core increases (increase being positive upwards, the increase being negative downwards, flux density becomes larger in a word), and works as excitation
When current amplitude is bigger, above-mentioned bias field is also bigger, exactly the presence of the bias field, so that stator iron where armature coil
Core is gradually saturated, and the magnetic linkage rate of changing with time in armature coil becomes smaller, so that the phase magnetic linkage of synthesis can be with encouraging
Magnetic current amplitude becomes larger and reduces, that is, reaches the function of weak magnetic；When exciting current is zero, maximum magnetic can be obtained
Chain.I.e. the present invention is dexterously using the gradually saturation of stator core, so that it is easy adjustable magnetic (weak magnetic).Therefore the present invention can be obvious
The adjustable magnetic performance of motor is improved, to meet the speed regulation demand of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the motor of Chen Jin great waves design in the prior art；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention；
Fig. 3 is A phase magnetic linkage in the embodiment of the present invention with exciting current variation diagram, wherein
Fig. 3 a is the A phase magnetic linkage variation diagram when exciting current is 0A；
Fig. 3 b is the A phase magnetic linkage variation diagram when exciting current is 10A；
Fig. 3 c is the A phase magnetic linkage variation diagram when exciting current is 30A；
Fig. 4 is adjustable magnetic comparison diagram (the A phase magnetic linkage amplitude for the motor that the embodiment of the present invention is designed with Chen Jin great waves in the prior art
Change with exciting current)；
Fig. 5 is the motor A phase magnetic linkage of Chen Jin great waves design in the prior art with exciting current variation diagram, wherein
Fig. 5 a is the A phase magnetic linkage variation diagram when exciting current is 0A；
Fig. 5 b is the A phase magnetic linkage variation diagram when exciting current is 10A；
Fig. 5 c is the A phase magnetic linkage variation diagram when exciting current is 30A；
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Fig. 2, this E shaped iron core mixed excited magnetic pass switch motor includes NsThe stator 1 and N of a number of polesrA number of poles
Rotor 2, the pole of the stator 1 and rotor 2 is designed to double-salient-pole structure, wherein stator 1 include again even number circumferentially according to
The E sections core unit 11 and the permanent magnet 12 between adjacent E sections core unit of secondary arrangement, the present embodiment is with 6/13 pole of three-phase
Illustrate for motor and (be of course also apply to the motor that the single-phase or number of phases is greater than three-phase), i.e., stator has Ns=6 salient poles, rotor
There is Nr=13 salient poles.6 salient poles of stator are respectively the pole A1, the pole B1, the pole C1, the pole A2, the pole B2, the pole C2, the choosing of E sections core unit
6 are taken as, each E sections core unit 11 is formed by multiple E font silicon steel plate stackings again；Permanent magnet 12 is also selected as 6, each permanent magnet
12 equal cutting orientation magnetizings, and the magnetizing direction of two adjacent permanent magnets is opposite.The adjacent armatures tooth of adjacent E sections core unit 11 and institute
It presss from both sides permanent magnet 12 and forms a stator poles, be arranged with armature coil 13 and magnet exciting coil 14, and adjacent stator pole in each stator poles
On magnet exciting coil apply exciting current it is contrary.With the symmetrical N in the stator center of circlesGroup after/m armature coil series connection
Cheng Yixiang armature winding, wherein m is number of motor phases, by this present embodiment, Ns=6, m=3, then above-mentioned 6 armature coils 13
In form a phase armature winding, i.e. A1 Polar armature coil and A2 Polar armature in Fig. 1 after symmetrical two armature coils series connection
Coil, which is connected in series, forms A phase armature winding, and B1 Polar armature coil and B2 Polar armature coil are connected in series and form B phase armature winding, C1
Armature coil and C2 Polar armature coil, which are connected in series, forms C phase armature winding, that is, using centralized armature winding；And 6 are encouraged
Centralized excitation winding is formed after being serially connected in magnetic coil.
Above-mentioned rotor 2 is located in the space being combined by above-mentioned 6 E sections core unit 11 and 6 permanent magnets 12, the rotor 2
It is made, is mounted in shaft made of un-conducted magnetic material of permeability magnetic material.The rotor design is at 13 straight poles, naturally it is also possible to
For 13 oblique poles, or it is mounted in shaft made of permeability magnetic material.
Motor in the present embodiment, can be used as motor running, can also be used as generator operation.
Motor using the above structure, the high power density, high efficiency, band for both having remained flux switch permanent magnet motor carry energy
Power is strong, can get the advantages that height sine back-emf, and because of the presence of fault-tolerant teeth, so that motor has fault-tolerant operation ability, together
When also have the advantages that motor in handling ease, especially embodiment has preferable adjustable magnetic performance.
Since the changing rule of every phase magnetic linkage of motor is the same, now by taking the magnetic linkage for analyzing A phase changes with exciting current as an example
To illustrate that the motor of the present embodiment has preferable adjustable magnetic performance.
Following magnetic linkages are unloaded magnetic linkages, i.e., when armature winding is not passed through electric current, permanent magnet and excitation winding are total
With provided magnetic linkage.As shown in figure 3, the fine line in figure is magnetic of the A1 Polar armature coil within one electric period of rotor rotation
Chain variation, dotted line are that A2 Polar armature coil changes in the magnetic linkage that rotor rotated in an electricity period, and heavy line is A1 Polar armature line
A phase magnetic linkage after the magnetic linkage synthesis of the magnetic linkage and A2 Polar armature coil of circle rotates the magnetic linkage variation in an electric period in rotor.
It can see from Fig. 3 a, as exciting current IfWhen for 0A, the variation range of A phase magnetic linkage is in -0.0652Wb~﹢ 0.0652Wb；
By can see in Fig. 3 b, as exciting current IfWhen for 10A, the variation range of A phase magnetic linkage is about in -0.052Wb~﹢
0.052Wb；By can see in Fig. 3 c, as exciting current IfWhen for 30A, the variation range of A phase magnetic linkage is about in -0.008Wb
~﹢ 0.008Wb, it can be seen that, because exciting current forms a bias field, make A1 Polar armature coil and A2 Polar armature coil
Magnetic linkage respectively upwards, A phase magnetic linkage the becoming larger and reduce with exciting current amplitude that offsets downward, and synthesize.By above-mentioned change
Change figure can draw the amplitude variation diagram that A phase magnetic linkage changes with exciting current, as shown by the bold lines in fig.It can by the solid line of Fig. 4
Know, is working as exciting current IfWhen increasing to 40A from 0A, A phase magnetic linkage amplitude range changes in ﹢ 0.0652Wb~﹢ 0.0046Wb, table
The bright A phase magnetic linkage rule reduced with becoming larger for exciting current amplitude, and A phase magnetic linkage amplitude range is larger.
And the motor of Chen Jin great waves design it can be seen that, works as exciting current from Fig. 5 a under similarity condition in the prior art
When for 0A, the variation range of A phase magnetic linkage is about in -0.0652Wb~﹢ 0.0652Wb；By can see in Fig. 5 b, when excitation electricity
When stream is 10A, the variation range of A phase magnetic linkage is about in -0.0636Wb~﹢ 0.0636Wb；By in Fig. 5 c it can be seen that, when encouraging
When magnetoelectricity stream is 30A, the variation range of A phase magnetic linkage is about in -0.0576Wb~﹢ 0.0576Wb, it can be seen that, A1 Polar armature
The magnetic linkage of coil and the magnetic linkage of A2 Polar armature coil are closed about X-axis (A phase magnetic linkage is equal to horizontal line when zero) symmetrical reduction
At A phase magnetic linkage becoming larger and reduce also with exciting current amplitude, but amplitude range is smaller.Chen Jin is drawn by above-mentioned variation diagram
The amplitude variation diagram that the A phase magnetic linkage of the motor of great waves design changes with exciting current, as indicated with broken lines in fig. 4.It can by Fig. 4 dotted line
Know, when exciting current increases to 40A from 0A, A phase magnetic linkage amplitude range is in 0.065 2Wb of ﹢~﹢ 0.054Wb, A phase magnetic linkage
Amplitude range is smaller, shows that its adjustable magnetic ability is limited.
Therefore, it can be seen from figure 4 that the adjustable magnetic range of motor is much larger than the tune of motor in the prior art in the present embodiment
Magnetic range.
Claims (3)
1. a kind of E shaped iron core mixed excited magnetic pass switch motor includes the stator (1) and rotor (1) for being salient-pole structure,
Middle stator (1) include again even number be circumferentially arranged successively E sections core unit (11), be located at adjacent E sections core unit it
Between permanent magnet (12) and armature coil (13) and magnet exciting coil (14), the permanent magnet (12) equal cutting orientation magnetizing, and phase
The magnetizing directions of adjacent two permanent magnets (12) on the contrary, adjacent E sections core unit (11) adjacent armatures tooth and folded permanent magnet
(12) stator poles are formed, the armature coil (13) are arranged in each stator poles, with the symmetrical N in the stator center of circles/m
A phase armature winding is formed after a armature coil series connection, wherein NsFor the number of poles of stator, m is number of motor phases, it is characterised in that: each
Magnet exciting coil (14) described in winding is gone back in the stator poles, and the excitation electricity that the magnet exciting coil (14) in adjacent stator pole applies
It flows contrary, forms excitation winding after the series connection of each magnet exciting coil (14).
2. E shaped iron core mixed excited magnetic pass switch motor according to claim 1, it is characterised in that: the excitation winding
Centralized winding is all made of with armature winding.
3. E shaped iron core mixed excited magnetic pass switch motor according to claim 1 or 2, it is characterised in that: the rotor
(2) straight pole or oblique pole are designed to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611005861.4A CN106451976B (en) | 2016-11-16 | 2016-11-16 | E shaped iron core mixed excited magnetic pass switch motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611005861.4A CN106451976B (en) | 2016-11-16 | 2016-11-16 | E shaped iron core mixed excited magnetic pass switch motor |
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| CN106451976B true CN106451976B (en) | 2019-08-02 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107026544A (en) * | 2017-05-24 | 2017-08-08 | 重庆大学 | A kind of composite excitation type combined type double-rotor machine |
| CN110299770A (en) * | 2019-07-31 | 2019-10-01 | 上海电力大学 | The four isolated fault-tolerant electric excitation biconvex electrode electric machines of the pole phase 4N/3N winding |
| CN111969822B (en) * | 2019-09-26 | 2023-04-18 | 哈尔滨工业大学 | Mixed excitation multi-phase reluctance motor and power generation system |
| CN110932510B (en) * | 2019-12-12 | 2021-01-29 | 齐鲁工业大学 | Double-stator magnetic flux switching wind driven generator |
| CN111082548A (en) * | 2020-01-10 | 2020-04-28 | 南京航空航天大学 | Stator modular hybrid excitation alternating pole magnetic flux reverse motor |
| CN111953167B (en) * | 2020-07-23 | 2023-06-09 | 江苏大学 | Switch magnetic flux hybrid excitation fault-tolerant motor |
| CN113904472A (en) * | 2021-09-14 | 2022-01-07 | 华中科技大学 | Rotor permanent magnet double-salient-pole motor |
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|---|---|---|---|---|
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN202210713U (en) * | 2011-08-26 | 2012-05-02 | 东南大学 | High reliability magnetic flux switching type motor |
| CN202334229U (en) * | 2011-11-17 | 2012-07-11 | 东南大学 | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
-
2016
- 2016-11-16 CN CN201611005861.4A patent/CN106451976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN202210713U (en) * | 2011-08-26 | 2012-05-02 | 东南大学 | High reliability magnetic flux switching type motor |
| CN202334229U (en) * | 2011-11-17 | 2012-07-11 | 东南大学 | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
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