CN108110933A - A kind of new radial magnetizing permanent magnetism synchronous motor - Google Patents
A kind of new radial magnetizing permanent magnetism synchronous motor Download PDFInfo
- Publication number
- CN108110933A CN108110933A CN201611055005.XA CN201611055005A CN108110933A CN 108110933 A CN108110933 A CN 108110933A CN 201611055005 A CN201611055005 A CN 201611055005A CN 108110933 A CN108110933 A CN 108110933A
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- synchronous motor
- air
- stator
- gap
- fluting
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- 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
-
- 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
- H02K3/47—Air-gap windings, i.e. iron-free windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a kind of new radial magnetizing permanent magnetism synchronous motors, the new radial magnetizing permanent magnetism synchronous motor design method of the present invention, employ the air-gap field intensity in slotless and fluting of equivalent surface currcnt method analytical Calculation radial magnetizing permanent magnetism synchronous motor, and the radial magnetizing permanent magnetism synchronous motor model machine of one 2 pole, 18 slot is calculated and compared with this method and FInite Element, result of calculation is compared with FInite Element, it is though more efficient and convenient in engineering allowed band, calculation amount is small there are certain error；Analytic method, which has the dimensional parameters for influencing motor-field, intuitively to be recognized；Computational accuracy can meet engineering design needs, therefore this kind of computational methods are accurate believable at last for the magnetometer of permanent magnet synchronous motor, this kind of motor is designed and studied with application well, theoretical foundation and truly feasible method also are provided to the affecting laws of motor performance to study various structural parameters.
Description
Technical field
The invention belongs to design of electrical motor field more particularly to a kind of new radial magnetizing permanent magnetism synchronous motors.
Background technology
Permanent magnet synchronous motor with its it is simple in structure, small, light-weight, efficient the features such as, obtained more and more extensive
Application.In fields such as precision instrument processing, high precision digital control lathe system and national defence space flight, higher is proposed to motor performance
Requirement.For the performance study of permanent magnet synchronous motor, the distribution of air-gap field in motor should be accurately calculated first.Magnetic field calculates
It is the basis of Motor Optimizing Design and performance evaluation, domestic and international many scholars study permanent magnet synchronous motor, particularly
The various methods calculated Distribution of Magnetic Field have carried out deeper research.
Herein for radial magnetizing permanent magnetism synchronous motor, air gap when deriving the empty load of motor slotless using equivalent surface currcnt method
The analytic sensitivity in magnetic field, and be modified with the influence that cassette coefficient is distributed air-gap field tooth slot structure, finally will
Analytical Calculation result is compared with Finite element arithmetic result, and the two is coincide very well.It is correct reliable to prove the method, is
The optimization design of radial magnetizing permanent magnetism synchronous motor and performance evaluation provide theoretical foundation and efficiently and effectively research method.
The content of the invention
The present invention addresses the above problem, provides a kind of new radial magnetizing permanent magnetism synchronous motor, this method is pin
To being the basis for studying motor properties, by using equivalent surface currcnt method, radial magnetizing permanent magnetism synchronous motor is deduced
Air-gap field intensity analytic sensitivity during unloaded slotless, and be modified using the influence of cassette coefficient cross-notching.Utilize solution
Analysis method and FInite Element to the magnetic field intensity of 2 pole, 18 slot radial magnetizing permanent magnetism synchronous motor model machine calculate and compare respectively
Analysis, the two result is very identical, demonstrates the validity and accuracy of the analytic method.This method is the synchronous electricity of radial magnetizing permanent magnetism
The optimization design and performance study of machine provide a kind of efficiently and effectively method.
The technical solution adopted by the present invention is a kind of new radial magnetizing permanent magnetism synchronous motor design method, including stator
Air-gap field and permanent magnet synchronous motor experimental verification when air-gap field, stator teeth notching during slotless.
Permanent magnet with a kind of magnetic conductivity by the material of μ r is replaced, put down in permanent magnet by air-gap field during the stator slotless
Row adds surface current, surface current density Hc in the both sides of magnetizing direction, and the direction of surface current should ensure that its magnetic field side generated
To identical with the magnetic direction that permanent magnet generates, it is assumed that the stator and rotor surface of magneto is smooth, influences to use as caused by fluting
Traditional cassette coefficient amendment；Ignore the saturation effect of magnetic circuit, disregard vortex and magnetic hystersis loss；The magnetic conductivity of stator and rotor iron core
For infinity, entire magnetic circuit is linear.
Air-gap field during described stator teeth notching, air-gap field intensity parsing meter during permanent-magnetic synchronous motor stator slotless
It calculates, all assumes that is obtained when motor stator and smooth rotor surface, but modernize the stator and rotor iron core of permanent magnet synchronous motor
General all different degrees of fluting, armature winding are embedded in the armature core of fluting, and fluting is on the one hand so that non-uniform air-gap
So as to change the distribution of air-gap field；On the other hand increase air-gap reluctance, when being calculated in magnetic field, usually influence of fluting etc.
It imitates and is handled for effective air gap amplification, permanent magnet synchronous motor general rotor is not slotted only slots in stator side, therefore
The situation of stator teeth notching is only needed when considering that fluting influences.
The permanent magnet synchronous motor experimental verification, effect are to verify analytical Calculation permanent magnet synchronous motor air-gap field
The correctness of intensity method is generally verified in design of electrical motor research using FInite Element, because this method can be maximum
The situation of the simulation real electrical machinery of limit, if two kinds of computational methods results are consistent, it is possible to verify the correctness of analytic method.
The beneficial effects of the invention are as follows：The new radial magnetizing permanent magnetism synchronous motor design method of the present invention, employs
The air-gap field intensity in slotless and fluting of radial magnetizing permanent magnetism synchronous motor with equivalent surface currcnt method analytical Calculation,
And the radial magnetizing permanent magnetism synchronous motor model machine of one 2 pole, 18 slot is calculated and compared with this method and FInite Element,
Result of calculation compared with FInite Element, though there are certain error, the more efficient and convenient, calculation amount in engineering allowed band
It is small；Analytic method, which has the dimensional parameters for influencing motor-field, intuitively to be recognized；Computational accuracy can meet engineering design needs, because
This this kind of computational methods is accurate believable at last for the magnetometer of permanent magnet synchronous motor, this kind of motor is designed and studied
With good application, theoretical foundation also is provided to the affecting laws of motor performance for research various structural parameters and really may be used
Capable method.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of herein below.
Fig. 1, Fig. 2 are structural model figures of the present invention.
In figure：1- stent steel disk 2- baffle 3- rolling bearing 4- input shaft 5- axle sleeve 6- hex(agonal)screw 7- copper dish
Support the support steel disk 13- pins 14- of steel disk 8- copper dish 9- the air gaps 10- permanent magnet 11- aluminium dish 12- permanent magnets
Inner cylinder 15- axis pin 16- shaft part 17- thrust slide bearing groups 18- band plummer block housing roller bearing units 19- output shafts 20-
Thick stick sliding block 21- support base 22- leading screw 23- handwheels.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of new radial magnetizing permanent magnetism synchronous motor design method, air gap during including stator slotless
Air-gap field and permanent magnet synchronous motor experimental verification when magnetic field, stator teeth notching.
Permanent magnet with a kind of magnetic conductivity by the material of ur is replaced, put down in permanent magnet by air-gap field during the stator slotless
Row adds surface current, surface current density Hc in the both sides of magnetizing direction, and the direction of surface current should ensure that its magnetic field side generated
To identical with the magnetic direction that permanent magnet generates, it is assumed that the stator and rotor surface of magneto is smooth, influences to use as caused by fluting
Traditional cassette coefficient amendment；Ignore the saturation effect of magnetic circuit, disregard vortex and magnetic hystersis loss；The magnetic conductivity of stator and rotor iron core
For infinity, entire magnetic circuit is linear.
Air-gap field during described stator teeth notching, air-gap field intensity parsing meter during permanent-magnetic synchronous motor stator slotless
It calculates, all assumes that is obtained when motor stator and smooth rotor surface, but modernize the stator and rotor iron core of permanent magnet synchronous motor
General all different degrees of fluting, armature winding are embedded in the armature core of fluting, and fluting is on the one hand so that non-uniform air-gap
So as to change the distribution of air-gap field；On the other hand increase air-gap reluctance, when being calculated in magnetic field, usually influence of fluting etc.
It imitates and is handled for effective air gap amplification, permanent magnet synchronous motor general rotor is not slotted only slots in stator side, therefore
The situation of stator teeth notching is only needed when considering that fluting influences.
The permanent magnet synchronous motor experimental verification, effect are to verify analytical Calculation permanent magnet synchronous motor air-gap field
The correctness of intensity method is generally verified in design of electrical motor research using FInite Element, because this method can be maximum
The situation of the simulation real electrical machinery of limit, if two kinds of computational methods results are consistent, it is possible to verify the correctness of analytic method.
The beneficial effects of the invention are as follows：The new radial magnetizing permanent magnetism synchronous motor design method of the present invention, employs
The air-gap field intensity in slotless and fluting of radial magnetizing permanent magnetism synchronous motor with equivalent surface currcnt method analytical Calculation,
And the radial magnetizing permanent magnetism synchronous motor model machine of one 2 pole, 18 slot is calculated and compared with this method and FInite Element,
Result of calculation compared with FInite Element, though there are certain error, the more efficient and convenient, calculation amount in engineering allowed band
It is small；Analytic method, which has the dimensional parameters for influencing motor-field, intuitively to be recognized；Computational accuracy can meet engineering design needs, because
This this kind of computational methods is accurate believable at last for the magnetometer of permanent magnet synchronous motor, this kind of motor is designed and studied
With good application, theoretical foundation also is provided to the affecting laws of motor performance for research various structural parameters and really may be used
Capable method.
Above with respect to the present invention specific descriptions, without limitation, it will be understood by those of ordinary skill in the art that, still
It can modify to the present invention or equivalent substitution, to reach identical technique effect；As long as meet using needs, all in this hair
Within bright protection domain.
Claims (4)
1. a kind of new radial magnetizing permanent magnetism synchronous motor, it is characterised in that：This method be for be research motor properties
Basis, by use equivalent surface currcnt method, be deduced air-gap field during radial magnetizing permanent magnetism synchronous motor zero load slotless
Intensity analytic sensitivity, and be modified using the influence of cassette coefficient cross-notching.Using analytic method and FInite Element respectively to 2
The magnetic field intensity of 18 slot radial magnetizing permanent magnetism synchronous motor model machine of pole calculate and comparative analysis, and the two result is very identical,
Demonstrate the validity and accuracy of the analytic method.This method is ground for the optimization design and performance of radial magnetizing permanent magnetism synchronous motor
Study carefully and provide a kind of efficiently and effectively method.
A kind of 2. new radial magnetizing permanent magnetism synchronous motor according to claim 1, which is characterized in that the motor bag
Air-gap field and permanent magnet synchronous motor experimental verification when air-gap field, stator teeth notching when including stator slotless.
A kind of 3. new radial magnetizing permanent magnetism synchronous motor according to claim 1, which is characterized in that the stator
Air-gap field during fluting, air-gap field intensity analytical Calculation during permanent-magnetic synchronous motor stator slotless, all assumes that motor stator
It is obtained with rotor surface when smooth, but the stator and rotor iron core for modernizing permanent magnet synchronous motor is generally all different degrees of to be opened
Slot, armature winding are embedded in the armature core of fluting, on the one hand fluting causes non-uniform air-gap to change air-gap field
Distribution；On the other hand increase air-gap reluctance, when being calculated in magnetic field, the influence of fluting is usually equivalent to effective air gap amplification and is come
It being handled, the general rotor of permanent magnet synchronous motor is not slotted only slots in stator side, therefore when considering that fluting influences only
Need the situation of stator teeth notching.
A kind of 4. new radial magnetizing permanent magnetism synchronous motor according to claim 1, which is characterized in that the stator
Air-gap field during fluting, air-gap field intensity analytical Calculation during permanent-magnetic synchronous motor stator slotless, all assumes that motor stator
It is obtained with rotor surface when smooth, but the stator and rotor iron core for modernizing permanent magnet synchronous motor is generally all different degrees of to be opened
Slot, armature winding are embedded in the armature core of fluting, on the one hand fluting causes non-uniform air-gap to change air-gap field
Distribution；On the other hand increase air-gap reluctance, when being calculated in magnetic field, the influence of fluting is usually equivalent to effective air gap amplification and is come
It being handled, the general rotor of permanent magnet synchronous motor is not slotted only slots in stator side, therefore when considering that fluting influences only
Need the situation of stator teeth notching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055005.XA CN108110933A (en) | 2016-11-25 | 2016-11-25 | A kind of new radial magnetizing permanent magnetism synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055005.XA CN108110933A (en) | 2016-11-25 | 2016-11-25 | A kind of new radial magnetizing permanent magnetism synchronous motor |
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| Publication Number | Publication Date |
|---|---|
| CN108110933A true CN108110933A (en) | 2018-06-01 |
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|---|---|---|---|
| CN201611055005.XA Pending CN108110933A (en) | 2016-11-25 | 2016-11-25 | A kind of new radial magnetizing permanent magnetism synchronous motor |
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| Country | Link |
|---|---|
| CN (1) | CN108110933A (en) |
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2016
- 2016-11-25 CN CN201611055005.XA patent/CN108110933A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
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| WD01 | Invention patent application deemed withdrawn after publication |