CN109038903A - A kind of two-phase fractional-slot hollow compensating pulse electric generator - Google Patents
A kind of two-phase fractional-slot hollow compensating pulse electric generator Download PDFInfo
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- CN109038903A CN109038903A CN201810892093.1A CN201810892093A CN109038903A CN 109038903 A CN109038903 A CN 109038903A CN 201810892093 A CN201810892093 A CN 201810892093A CN 109038903 A CN109038903 A CN 109038903A
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- 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
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- 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
- H02K3/18—Windings for salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K39/00—Generators specially adapted for producing a desired non-sinusoidal waveform
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A kind of two-phase fractional-slot hollow compensating pulse electric generator involved in the present invention, including stator and rotor, the stator includes two-phase armature winding, 90 ° of electrical angles of mutual deviation between two-phase armature winding, two-phase armature winding is made of 2 coils, the all coils of two phase windings are concentric type concentratred winding, the all coils of two phase winding are uniformly distributed in stator space, it is interspersed between out of phase coil, and it does not interspace between two neighboring coil, rotor includes excitation winding, excitation winding is made of six magnet exciting coils, above-mentioned impulse generator, which is exactly one, has two-phase, four slots, the pulse motor of sextupole, and meet the fractional-slot winding slot number number combined constraint conditions that pitch is 1, so as to avoid the juxtaposition problem of traditional distributed winding not in-phase coil end, greatly reduce hollow pulse power generation The manufacture difficulty of machine stator winding, while the electric discharge fan-out capability of motor can effectively improve.
Description
Technical field
The present invention relates to technical field of motors, more particularly, to a kind of two-phase fractional-slot hollow compensating pulse electric generator.
Background technique
Existing hollow compensating pulse electric generator, traditional ferromagnetism is replaced using strength/density than high composite material
Material, to improve the energy density and power density of motor.Since composite material is non-magnetic, poor in processability, motor is logical
Standing to be calculated as slotless configuration, stator armature winding is sized generally to that concentric type is run-track shaped, and overall volume is larger, utilizes epoxy
It is resin-bonded on stator inner wall.For the motor using two-phase armature winding structure, existing integer slot distribution winding is set
Count structure, it is difficult to which what is avoided juxtaposition occurs in two-phase winding overhang, it is therefore desirable to additional Shape correction, to the system of winding
It makes and brings great difficulty.
Summary of the invention
It can be avoided technical problem to be solved by the invention is to provide one kind and juxtaposition occur in two-phase winding overhang,
Reduce the two-phase fractional-slot hollow compensating pulse electric generator of manufacture difficulty.
The technical scheme adopted by the invention is that a kind of two-phase fractional-slot hollow compensating pulse electric generator, including stator and
Rotor, the stator include two-phase armature winding, 90 ° of electrical angles of mutual deviation between two-phase armature winding, the two-phase armature winding
It is made of 2 coils, all coils of two phase windings are concentric type concentratred winding, and the number of turns, sectional area and structure are complete
It is identical, and be made of transposition Ritz conducting wire, and use slotless configuration, all coils of two phase winding are equal in stator space
Even distribution is interspersed between out of phase coil, and does not interspace between two neighboring coil, the rotor include excitation around
Group, the excitation winding are made of six magnet exciting coils.
Although electrically being tied the beneficial effects of the present invention are: above-mentioned coil uses slotless configuration in mechanical structure
On structure, motor stator has 4 coils, and does not interspace between coil, and being equivalent to motor has 4 " empty slot " (Z=4), that
The above-mentioned hollow compensating pulse electric generator of two-phase fractional-slot, which is exactly one, has 2 phases (m=2), 4 slots (Z=4), 6 poles (2p=6)
Impulse generator, its MgO-ZrO_2 brick is score (q=Z/2pm=1/3), and meet fractional-slot that pitch is 1 around
Group slot number number combined constraint conditions, i.e. stator armature winding can use pitch for the centralized winding construction of 1 bilayer, to keep away
The juxtaposition problem for having exempted from traditional distributed winding not in-phase coil end, greatly reduce hollow impulse generator stator around
The manufacture difficulty of group.Meanwhile the tip lengths of concentratred winding are small, motor end impedance also reduces therewith, the electric discharge output of motor
Ability can effectively improve.
As preferential, stator further includes stator yoke and stator sheath, and two-phase armature winding is bonded in by epoxy resin
In stator shield, stator yoke is wrapped on two-phase armature winding by applying pretightning force, using the structure, keeps armature winding firm
It is fixed between stator yoke and stator sheath, thus the electromagnetic force for overcoming electric discharge moment to generate.
As preferential, stator sheath is the cylinder-like structure being entwined by high strength glass fiber, and stator yoke is using high
Strength-Glass-Fibre is wrapped in formation cylindrical shape structure on two-phase armature winding.
As preferential, rotor further includes rotor yoke, rotor jacket and shaft, and the excitation winding of rotor passes through epoxy resin
Be bonded on rotor yoke, rotor jacket is wrapped in excitation winding by applying pretightning force, using the structure, can make excitation around
Group is firmly fixed among rotor yoke and rotor jacket, to overcome high-speed rotating centrifugal force.
As preferential, rotor yoke is the cylinder-like structure being entwined by high strength glass fiber, and rotor jacket is using high
Strength carbon fiber, which is wrapped in excitation winding, forms cylinder-like structure.
As preferential, rotor yoke is bonded in shaft by epoxy resin, and shaft is high using intensity and un-conducted magnetic material.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of two-phase fractional-slot hollow compensating pulse electric generator of the present invention；
1, A phase armature winding as shown in Figure 1:；2, B phase armature winding；3, stator yoke；4, stator sheath；5, excitation winding；
6, rotor yoke；7, rotor jacket；8, shaft.
Specific embodiment
It is invented referring to the drawings and in conjunction with specific embodiment to further describe, to enable those skilled in the art's reference
Specification word can be implemented accordingly, and the scope of the present invention is not limited to the specific embodiment.
The present invention relates to a kind of two-phase fractional-slot hollow compensating pulse electric generator, including stator and rotor, the stator packets
Two-phase armature winding is included, as shown in Figure 1, two-phase armature winding is A phase armature winding 1 and B phase armature winding 2, A phase armature winding
90 ° of electrical angles of mutual deviation between 1 and B phase armature winding 2, wherein A phase armature winding 1 is by two coils (A1 coil and A2 coil)
Composition, B phase armature winding 2 are made of two coils (B1 coil and B2 coil), i.e. two phase winding a total of four coils, and this four
Coil is concentric type concentratred winding, and the number of turns, sectional area and structure are identical, and is made of transposition Ritz conducting wire, and adopt
With slotless configuration, and A1, A2, B1 and B2 are evenly distributed in stator space, come between A1 and A2 further through B1 and B2
It is spaced apart, i.e., is interspersed between out of phase coil, and do not interspace between two neighboring coil, the rotor includes encouraging
Magnetic winding 5, the excitation winding 5 are made of six magnet exciting coils.Wherein, 2 coils of every phase armature winding can be according to need
Series connection is asked, or is connected in parallel.Six magnet exciting coils can be connected in series according to demand, or be connected in parallel.
In Fig. 1, although four armature coils use slotless configuration, on electrical structure, motor in mechanical structure
There are four coils for stator, and do not interspace between coil, and being equivalent to motor tool, there are four " empty slot " (Z=4), then in Fig. 1
The hollow compensating pulse electric generator of two-phase fractional-slot be exactly one have two-phase (m=2), four slots (Z=4), sextupole (2p=6)
Pulse motor, its MgO-ZrO_2 brick are score (q=Z/2pm=1/3), and meet the fractional-slot winding slot that pitch is 1
Number of poles combined constraint conditions, i.e. stator armature winding can use pitch for the centralized winding construction of 1 bilayer, so as to avoid
The juxtaposition problem of traditional distributed winding not in-phase coil end, greatly reduces hollow impulse generator stator winding
Manufacture difficulty.Meanwhile the tip lengths of concentratred winding are small, motor end impedance also reduces therewith, the electric discharge fan-out capability of motor
It can effectively improve.
Wherein, the constraint condition that the fractional-slot winding slot number array that pitch is 1 is closed are as follows:
1) Z/m is integer (Z/m=2), so that every phase is assigned to identical slot number, each phase winding is symmetrical；
2) multiple that p/m ≠ integer (p/m=3/2), i.e. p do not allow for m；
3) Z=2p0± N, N=1,2,3 ..., when Z is odd number, N should take odd number；When Z is even number, N should take even number.
In the present invention, the reason of selecting two-phase (m=2) are as follows:
Multiple short pulses can be closed using the impulse generator of two phase structure by controlling the switching angle of every phase winding
The broad pulse for meeting load requirement at one has decoupled the restricting relation between motor speed and pulsewidth, can not only obtain enough
Pulsewidth, moreover it is possible to improve revolving speed to obtaining higher energy storage density, output waveform is more flexible, high particularly suitable for driving
The Electromagnetic Launching of energy.In order to enable every phase independent control, 90 ° of electrical angles of mutual deviation between two phase windings, avoid each phase winding it
Between electromagnetic coupling.
The reason of selecting sextupole (2p=6) are as follows:
Motor is two-phase induction motor, i.e. m=2 is fixed value, and to meet p/m ≠ integer, the number of pole-pairs p of motor may only be selected
1,3,5 equal odd numbers.For hollow impulse generator, due to the constraint of not no ferromagnetic material, air gap flux density amplitude is with number of pole-pairs p's
Increase exponential damping, therefore the design of motor number of pole-pairs is the smaller the better.And as p=1, electromagnetic field analysis knows motor excitation at this time
Magnetic field will pass through shaft with steady state value, need using nonmagnetic shaft and bearing, and design corresponding electromagnetic shielding measure with
The extraneous turbulence loss for overcoming the magnetic field of autoexcitation magnetic temporal variation to generate in shaft.Meanwhile 1 pair of pole motor is when discharging operation
There is also rotor unbalance stress, easily cause polarization and problem of stress concentration.In conclusion motor pole number of the present invention selects 6 poles
(2p=6).
The reason of selecting four slots (Z=4) are as follows:
Motor is two-phase induction motor, i.e. it is integer to meet Z/m, the slot number Z of motor should be even number that m=2, which is fixed value,；It examines
Consider motor pole number and has been determined as 6 poles (2p=6), in order to meet constraint condition 3, while in view of the smaller winding coefficient of N is bigger,
Take N=2, at this time Z can value be 4 and 8.By further electromagnetic field analysis, as Z=4, the winding coefficient of armature winding
0.783；As Z=8, the winding coefficient of armature winding only has 0.522.In conclusion number of slots of the present invention selects 4 slot (Z=
4)。
As shown in Figure 1, stator further includes stator yoke 3 and stator sheath 4, two-phase armature winding is bonded by epoxy resin
On stator sheath 4, stator yoke 3 is wrapped on two-phase armature winding by applying pretightning force, using the structure, makes armature winding
It is firmly fixed between stator yoke 3 and stator sheath 4, thus the electromagnetic force for overcoming electric discharge moment to generate.
As shown in Figure 1, stator sheath 4 is the cylinder-like structure being entwined by high strength glass fiber, stator yoke 3 is used
High strength glass fiber is wrapped in formation cylindrical shape structure on two-phase armature winding.
As shown in Figure 1, rotor further includes rotor yoke 6, rotor jacket 7 and shaft 8, the excitation winding 5 of rotor passes through ring
Oxygen is resin-bonded on rotor yoke 6, and rotor jacket 7 is wrapped in excitation winding 5 by applying pretightning force, can using the structure
So that excitation winding 5 is firmly fixed among rotor yoke 6 and rotor jacket 7, to overcome high-speed rotating centrifugal force.
As shown in Figure 1, rotor yoke 6 is the cylinder-like structure being entwined by high strength glass fiber, rotor jacket 7 is used
High-strength carbon fiber is wrapped in excitation winding 5 and forms cylinder-like structure.
As shown in Figure 1, rotor yoke 6 is bonded in shaft 8 by epoxy resin, the high and non-magnetic material using intensity of shaft 8
Material.
Claims (6)
1. a kind of two-phase fractional-slot hollow compensating pulse electric generator, including stator and rotor, it is characterised in that: the stator includes
Two-phase armature winding, 90 ° of electrical angles of mutual deviation between two-phase armature winding, the two-phase armature winding are made of two coils,
The all coils of two phase windings are concentric type concentratred winding, and the number of turns, sectional area and structure are identical, and by Ritz of replacing
Conducting wire is made, and uses slotless configuration, and all coils of two phase winding are uniformly distributed in stator space, out of phase line
Be interspersed between circle, and do not interspace between two neighboring coil, the rotor includes excitation winding (5), the excitation around
Group (5) is made of six magnet exciting coils.
2. a kind of two-phase fractional-slot hollow compensating pulse electric generator according to claim 1, it is characterised in that: stator also wraps
Stator yoke (3) and stator sheath (4) are included, two-phase armature winding is bonded on stator sheath (4) by epoxy resin, stator yoke
(3) it is wrapped on two-phase armature winding by applying pretightning force.
3. a kind of two-phase fractional-slot hollow compensating pulse electric generator according to claim 2, it is characterised in that: stator sheath
It (4) is the cylinder-like structure being entwined by high strength glass fiber, stator yoke (3) is wrapped in two using high strength glass fiber
Cylinder-like structure is formed on phase armature winding.
4. a kind of two-phase fractional-slot hollow compensating pulse electric generator according to claim 1, it is characterised in that: rotor also wraps
Rotor yoke (6), rotor jacket (7) and shaft (8) are included, the excitation winding (5) of rotor is bonded in rotor yoke by epoxy resin
(6) on, rotor jacket (7) is wrapped on excitation winding (5) by applying pretightning force.
5. a kind of two-phase fractional-slot hollow compensating pulse electric generator according to claim 4, it is characterised in that: rotor yoke
It (6) is the cylinder-like structure being entwined by high strength glass fiber, rotor jacket (7) is wrapped in using high-strength carbon fiber and is encouraged
Magnetic winding forms cylinder-like structure on (5).
6. a kind of two-phase fractional-slot hollow compensating pulse electric generator, feature according to claim 4 or claim 5 exist
In: the rotor yoke (6) is bonded on shaft (8) by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892093.1A CN109038903B (en) | 2018-08-07 | 2018-08-07 | Two-phase fractional slot hollow compensation pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892093.1A CN109038903B (en) | 2018-08-07 | 2018-08-07 | Two-phase fractional slot hollow compensation pulse generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038903A true CN109038903A (en) | 2018-12-18 |
| CN109038903B CN109038903B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892093.1A Active CN109038903B (en) | 2018-08-07 | 2018-08-07 | Two-phase fractional slot hollow compensation pulse generator |
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| Country | Link |
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| CN (1) | CN109038903B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474506A (en) * | 2019-09-27 | 2019-11-19 | 哈尔滨工业大学 | Brushless self-excited excitation-type impulse generator |
| CN110556950A (en) * | 2019-09-29 | 2019-12-10 | 哈尔滨工业大学 | Internal rotor cooling type pulse generator |
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2018
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| CN1707919A (en) * | 2004-06-07 | 2005-12-14 | 陈金涛 | Inserted iron-core axial magnetic field permanent magnetic disc type electric machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474506A (en) * | 2019-09-27 | 2019-11-19 | 哈尔滨工业大学 | Brushless self-excited excitation-type impulse generator |
| CN110556950A (en) * | 2019-09-29 | 2019-12-10 | 哈尔滨工业大学 | Internal rotor cooling type pulse generator |
| CN110556950B (en) * | 2019-09-29 | 2020-06-09 | 哈尔滨工业大学 | Internal rotor cooling type pulse generator |
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| CN109038903B (en) | 2020-09-01 |
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