CN110190726A - Mover, pole spans formula double-fed linear motor and its design method such as not - Google Patents
Mover, pole spans formula double-fed linear motor and its design method such as not Download PDFInfo
- Publication number
- CN110190726A CN110190726A CN201910460522.2A CN201910460522A CN110190726A CN 110190726 A CN110190726 A CN 110190726A CN 201910460522 A CN201910460522 A CN 201910460522A CN 110190726 A CN110190726 A CN 110190726A
- Authority
- CN
- China
- Prior art keywords
- mover
- pole
- linear motor
- toothing
- stator
- 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.)
- Pending
Links
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a kind of mover, pole spans formula double-fed linear motor and its design method such as not, belong to motor field.Mover includes core body；In core body, using the beginning of the head end magnetic pole of mover as starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrIt is provided with first toothing, the facewidth τ of the first toothingc=τs‑τrOr τc=2 (τs‑τr), τsPole span for the stator cooperated with mover.Not equal pole spans formula double-fed linear motor includes the mover of this programme design.The design method includes: in the core body of mover, using the beginning of the head end magnetic pole of mover as starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrOne the first toothing is set, and the width of the first toothing corresponds to τc=τs‑τrOr τc=2 (τs‑τr), τsFor double-fed linear motor stator poles away from.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of mover, pole spans formula double-fed linear motor and its design side such as not
Method.
Background technique
The mover side of determining of double-fed linear motor is equipped with three-phase windings, can change the amplitude for determining mover side voltage, frequency respectively
Rate and phase, achieve the purpose that speed regulation.This kind of electric machine speed regulation is functional, and has power adjustable section, and transducer power is small etc.
Advantage.
As shown in Figure 1, double-fed linear motor is mainly made of stator 2 and former mover 4.The three-phase of 4 side of stator 2 and former mover
When winding is powered, travelling-magnetic-field interaction is generated, former mover operation is pushed, realizes the operation of double-fed linear motor.
Equal pole spans structural formula double-fed linear motor, the travelling-magnetic-field phase that three-phase windings generate is kept constant, due to motor
Both sides fluting, air-gap flux mutation significantly cause motor thrust fluctuation obvious, are unable to satisfy motor operation requirement.Not equal pole spans formula
When the pole span of double-fed linear motor, i.e. stator 2 and former mover 4 is unequal, due to the tooth socket corresponding position of stator 2 and former mover 4
Can misplace, the fluctuation for the motor thrust that can reduce in this way, but when using this structure, stator 2 and former 4 side three-phase of mover around
The travelling-magnetic-field that group generates is kept constant in a cycle, due to pole span etc., in the later cycle of operation, stator 2
It changes with former 4 travelling-magnetic-field phase of mover, and increases in divergence expression, motor thrust gradually reduces, so that motor can not be just
Often operating.
Summary of the invention
For above-mentioned deficiency in the prior art, the present invention is intended to provide one kind can reduce motor thrust undulate quantity, and
Make the not equal pole spans formula double-fed linear motor of motor holding steady propulsion.
In order to achieve the purpose that foregoing invention is created, the technical solution adopted by the present invention are as follows:
There is provided a kind of not equal pole spans formula double-fed linear motor mover comprising core body；In core body, with mover
Head end magnetic pole beginning be starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrIt is provided with a first tooth knot
Structure, the facewidth τ of the first toothingc=τs-τrOr τc=2 (τs-τr), τsPole span for the stator cooperated with mover.
Second aspect provides a kind of not equal pole spans formula double-fed linear motor comprising the mover of this programme design.
Further, the number of pole-pairs of mover is p,0.9τs≤τr≤τs。
The third aspect provides a kind of design method for not waiting pole spans formula double-fed linear motor of this programme design comprising:
In the core body of mover, using the beginning of the head end magnetic pole of mover as starting point, every a mover pole span τrOr a pair of of mover
2 τ of pole spanrOne the first toothing is set, and the width of the first toothing corresponds to τc=τs-τrOr τc=2 (τs-τr), τsFor double-fed
The stator poles of linear motor away from.
The invention has the benefit that
First toothing compensates for the stator and mover electromagnetic phase of the double-fed linear motor of not equal pole spans structural formula.One
After a period, the travelling-magnetic-field that stator and mover three-phase windings generate returns to initial phase difference, to maintain constant phase
Difference makes double-fed linear motor keep steady propulsion, while reduces electromagnetic push fluctuation when the operation of double-fed linear motor, from structure
On inhibit the effect of force oscillation so that not equal pole spans formula double-fed linear motor stable operation.
Detailed description of the invention
Fig. 1 is in the prior art, not wait the partial structural diagram of pole spans formula double-fed linear motor；
Fig. 2 is not wait the partial structural diagram of pole spans formula double-fed linear motor in embodiment 1；
Fig. 3 is not wait the partial structural diagram of pole spans formula double-fed linear motor in embodiment 2；
Fig. 4 is the specific existing electromagnetic push datagram for waiting pole spans formula double-fed linear motor；
Fig. 5 is the specific existing electromagnetic push datagram for not waiting pole spans formula double-fed linear motor；
Fig. 6 is the electromagnetic push datagram of embodiment 1；
Fig. 7 is the electromagnetic push datagram of embodiment 2.
Wherein, 1, mover；2, stator；3, the first toothing；4, former mover；A, B and C indicates the three-phase of winding.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, in order to the technology of the art
Personnel understand the present invention.It should be apparent that embodiment described below is only a part of the embodiments of the present invention, rather than
Whole embodiments.It is not departing from the spirit and scope of the present invention that the attached claims are limited and determined, this field is common
Technical staff is not making any creative work every other embodiment obtained, belongs to protection model of the invention
It encloses.
As shown in Figures 2 and 3, double-fed linear motor mover 1 includes core body；In core body, with mover 1
The beginning of head end magnetic pole is starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrIt is provided with first toothing 3,
The facewidth τ of first toothing 3c=τs-τrOr τc=2 τs-τr, τsPole span for the stator 2 cooperated with mover 1.
This programme also provides a kind of double-fed linear motor comprising the mover 1 of this programme design.
When implementation, this programme is preferred0.9τs≤τr≤τs, p is the number of pole-pairs of mover 1, with into one
Step ensures the average thrust of double-fed linear motor.
This programme also provides a kind of design method of the double-fed linear motor of this programme design comprising: in the iron of mover 1
On core ontology, using the beginning of the head end magnetic pole of mover 1 as starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrSetting
One the first toothing 3, the width of the first toothing 3 correspond to τc=τs-τrOr τc=2 τs-τr, τsFor double-fed linear motor
2 pole span of stator.
Existing equal pole spans formula double-fed linear motor, with the number of pole-pairs p=4 of its former mover 4, stator 2 and the every pole of former mover 4
Every phase slot number q=3, stator 2 and former 4 pole span of mover are 315mm, 2 side winding current I of stators=450A, former 4 side of mover around
Group electric current Ir=320A, facewidth bst=25mm, groove width bss=10mm, air gap height δ=13mm, 2 side winding of stator and former mover 4
For turn number N=3 of side winding, electromagnetic push data are as shown in figure 4, force oscillation amount is 44.6%.
Existing not equal pole spans formula double-fed linear motor, with the number of pole-pairs p=4 of former mover 4, stator 2 and the every pole of former mover 4
Every phase slot number q=3,2 pole span τ of stators=315mm, former 4 pole span τ of moverr=302.4mm, 2 side winding current I of stators=
450A, former 4 side winding current I of moverr=320A, 2 facewidth b of statorst=25mm, 2 groove width b of statorss=10mm, former 4 tooth of mover
Wide bn=24mm, former 4 groove width b of moverrs=9.6mm, air gap height δ=13mm, 4 side winding of 2 side winding of stator and former mover
For turn number N=3, electromagnetic push data are as shown in figure 5, motor average thrust is substantially reduced and is in decline with motor operation
Subtract trend, motor is caused to be unable to operate normally.
When implementing, this programme design does not wait pole spans formula double-fed linear motor, with the number of pole-pairs p=4 of mover 1, stator 2
With 1 MgO-ZrO_2 brick q=3 of mover, 2 pole span τ of stators=315mm, mover pole span τr=302.4mm, 2 side winding current of stator
Is=450A, 1 side winding current I of moverr=320A, 2 facewidth b of statorst=25mm, 2 groove width b of statorss=10mm, 1 tooth of mover
Wide bn=24mm, 1 groove width b of moverrs=9.6mm, air gap height δ=13mm, the line of 4 side winding of 2 side winding of stator and former mover
It encloses based on the number of turns N=3.
Embodiment 1, every a mover pole span τrAfter be provided with the first toothing 3, the facewidth τ of the first toothing 3c=τs-
τr=12.6, make not equal pole spans formula double-fed linear motor after a mover pole span, 1 side winding electricity of 2 side winding of stator and mover
The raw travelling-magnetic-field of miscarriage returns to constant initial phase difference, and weakens force oscillation, electromagnetic push data such as Fig. 6 institute
Show, thrust is more stable, and force oscillation amount is 14.45%.
Embodiment 2, every a pair of of 2 τ of mover pole spanrIt is provided with first toothing 3, the facewidth or τ of the first toothing 3c
=2 τs-τr=25.2, the travelling-magnetic-field that 2 side winding of stator and 1 side winding current of mover generate returns to constant initial phase difference,
And force oscillation is weakened, electromagnetic push data are as shown in fig. 7, its thrust is more stable, and force oscillation amount is 9.26%.
In the case where same design parameter, in conjunction with Fig. 4 to Fig. 7, it is understood that embodiment 1 and the setting of embodiment 2 first
After toothing 3, the thrust of motor is more stable, and force oscillation amount is smaller.
Claims (4)
1. not equal pole spans formula double-fed linear motor mover, which is characterized in that including core body；In the core body, with
The beginning of the head end magnetic pole of the mover (1) is starting point, every a mover pole span τrOr a pair of of 2 τ of mover pole spanrIt is provided with one
A first toothing (3), the facewidth τ of first toothing (3)c=τs-τrOr τc=2 (τs-τr), τsFor with the mover
(1) pole span of the stator (2) cooperated.
2. not equal pole spans formula double-fed linear motor, which is characterized in that including mover described in claim 1 (1).
3. not equal pole spans formula double-fed linear motor according to claim 2, which is characterized in that the mover (1) it is extremely right
Number is p,0.9τs≤τr≤τs。
4. a kind of design method described in claim 2 or 3 for not waiting pole spans formula double-fed linear motor characterized by comprising
In the core body of mover (1), using the beginning of the head end magnetic pole of mover (1) as starting point, every a mover pole span τrOr one
To 2 τ of mover pole spanrOne the first toothing (3) is set, and the width of first toothing (3) corresponds to τc=τs-τrOr τc=
2(τs-τr), τsFor stator (2) pole span of the double-fed linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460522.2A CN110190726A (en) | 2019-05-30 | 2019-05-30 | Mover, pole spans formula double-fed linear motor and its design method such as not |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460522.2A CN110190726A (en) | 2019-05-30 | 2019-05-30 | Mover, pole spans formula double-fed linear motor and its design method such as not |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110190726A true CN110190726A (en) | 2019-08-30 |
Family
ID=67718673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460522.2A Pending CN110190726A (en) | 2019-05-30 | 2019-05-30 | Mover, pole spans formula double-fed linear motor and its design method such as not |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110190726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297866A (en) * | 2020-10-26 | 2021-02-02 | 同济大学 | Magnetic suspension driving device based on linear double-fed motor and magnetic suspension train system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119040A (en) * | 2000-10-12 | 2002-04-19 | Yaskawa Electric Corp | Linear motor |
| CN104011976A (en) * | 2011-12-27 | 2014-08-27 | 株式会社安川电机 | Motor |
| CN105281465A (en) * | 2015-11-03 | 2016-01-27 | 西南交通大学 | Variable-electrode-distance long primary bilateral linear induction motor |
| CN107171530A (en) * | 2017-07-19 | 2017-09-15 | 南京航空航天大学 | Low-thrust fluctuates continuous pole permanent magnetic linear synchronous motor |
| CN107482871A (en) * | 2017-08-18 | 2017-12-15 | 南京航空航天大学 | The continuous pole permanent magnetic linear synchronous motor of unit motor moduleization |
| CN107493003A (en) * | 2017-09-22 | 2017-12-19 | 南京航空航天大学 | A kind of bilateral 60 ° of permanent magnetic linear synchronous motors of side set of unit motor moduleization |
| CN108418389A (en) * | 2018-03-29 | 2018-08-17 | 北京精雕科技集团有限公司 | A kind of low-thrust fluctuation permanent magnetic linear motor weakening End Force influence |
-
2019
- 2019-05-30 CN CN201910460522.2A patent/CN110190726A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119040A (en) * | 2000-10-12 | 2002-04-19 | Yaskawa Electric Corp | Linear motor |
| CN104011976A (en) * | 2011-12-27 | 2014-08-27 | 株式会社安川电机 | Motor |
| CN105281465A (en) * | 2015-11-03 | 2016-01-27 | 西南交通大学 | Variable-electrode-distance long primary bilateral linear induction motor |
| CN107171530A (en) * | 2017-07-19 | 2017-09-15 | 南京航空航天大学 | Low-thrust fluctuates continuous pole permanent magnetic linear synchronous motor |
| CN107482871A (en) * | 2017-08-18 | 2017-12-15 | 南京航空航天大学 | The continuous pole permanent magnetic linear synchronous motor of unit motor moduleization |
| CN107493003A (en) * | 2017-09-22 | 2017-12-19 | 南京航空航天大学 | A kind of bilateral 60 ° of permanent magnetic linear synchronous motors of side set of unit motor moduleization |
| CN108418389A (en) * | 2018-03-29 | 2018-08-17 | 北京精雕科技集团有限公司 | A kind of low-thrust fluctuation permanent magnetic linear motor weakening End Force influence |
Non-Patent Citations (2)
| Title |
|---|
| 曾志凌: "城轨列车双馈直线驱动电机电磁计算与设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 蒋超华: "永磁混合磁浮列车驱动电机及其控制研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297866A (en) * | 2020-10-26 | 2021-02-02 | 同济大学 | Magnetic suspension driving device based on linear double-fed motor and magnetic suspension train system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Youn et al. | A new cogging-free permanent-magnet linear motor | |
| Li et al. | Design and analysis of a flux reversal machine with evenly distributed permanent magnets | |
| Abdollahi et al. | Reducing cogging torque in flux switching motors with segmented rotor | |
| Hasegawa et al. | A novel switched reluctance motor with the auxiliary windings and permanent magnets | |
| JP2009254092A5 (en) | ||
| Shen et al. | Design and analysis of linear hybrid-excited slot permanent magnet machines | |
| Yu et al. | Design of a double-stator magnetless vernier machine for direct-drive robotics | |
| Zhou et al. | Reduction of cogging force in a linear flux-switching permanent-magnet brushless AC machine for direct-drive applications | |
| Gundogdu et al. | Design of permanent magnet machines with different rotor type | |
| JP5419991B2 (en) | Permanent magnet synchronous motor | |
| Bai et al. | Reducing detent force and three-phase magnetic paths unbalance of PM linear synchronous motor using modular primary iron-core structure | |
| CN110190726A (en) | Mover, pole spans formula double-fed linear motor and its design method such as not | |
| Sozer et al. | Adaptive torque ripple control of permanent magnet brushless DC motors | |
| Shen et al. | Investigation of novel multi-tooth linear variable flux reluctance machines | |
| Chung et al. | Development of flux reversal linear synchronous motor for precision position control | |
| Kumar et al. | Effect of magnetic trajectories in a magnetically coupled dual stator five phase PMSG | |
| CN210167866U (en) | Five-phase 5N/4N pole armature excitation distributed fault-tolerant electric excitation double-salient motor | |
| Cao et al. | A double fed three-phase flux-switching linear motor with complementary magnet circuit for urban rail transit | |
| Bo et al. | Design and characteristic analysis of a novel axial field SRM with single teeth stator and segmental rotor | |
| Shao et al. | Design and analysis of a novel linear vernier motor with split tooth structure | |
| Zhang et al. | Slot-pole combinations research of Permanent-Magnet linear synchronous motor with concentrated windings | |
| CN103934718A (en) | Harmonic thrust linear motor for frequency conversion vibration of cutter of cutting machine tool | |
| CN204349601U (en) | A kind of EPS motor | |
| Xia et al. | Low speed high torque PMSM design based on unequal teeth structure | |
| Chishko et al. | DC excited flux-switching motor: Rotor structural optimization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |