CN109286258A - A kind of alternating-current brushless double feedback electric engine wound rotor winding and preparation method thereof - Google Patents
A kind of alternating-current brushless double feedback electric engine wound rotor winding and preparation method thereof Download PDFInfo
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- CN109286258A CN109286258A CN201811449308.9A CN201811449308A CN109286258A CN 109286258 A CN109286258 A CN 109286258A CN 201811449308 A CN201811449308 A CN 201811449308A CN 109286258 A CN109286258 A CN 109286258A
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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
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/09—Forming windings by laying conductors into or around core parts by laying conductors into slotted rotors
-
- 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
Abstract
The invention discloses a kind of alternating-current brushless double feedback electric engine wound rotor windings and preparation method thereof, including a double-deck sub- winding of three-phase and a sub- winding of three-phase single-layer；The double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer are compound and constitute three layers of winding of three-phase；Three layers of winding of three-phase have p1And p2Two different numbers of pole-pairs, and its number of pole-pairs ratio is p1:p2=2:4；In three layers of winding of three-phase, every phase winding is connected in series by two sub- phase windings and self-contained is closed circuit, and the coil pitch in two sub- windings is different, but coil turn is identical.In the present invention, winding coil number and distribution form are reasonable, span and the number of turns can flexible choice, harmonic content is small, and service performance is high；Winding Design method is simple, and the mode of connection is simple, and coil end structure is regular, terminals marshalling, and rotor windings service performance is high.
Description
Technical field
The present invention relates to alternating-current brushless double feedback electric engine technical field more particularly to a kind of alternating-current brushless double feedback electric engine Wound-rotor types
Rotor windings and preparation method thereof.
Background technique
Brushless dual-feed motor is powered respectively using electric network source and variable-frequency power sources, reliable for operation, it is desirable that variable-frequency power sources hold
The features such as smaller is measured, can be become with the operation of motor frequency change mode of speed regulation and generator for wind-force or waterpower
Fast constant frequency generation etc..
Brushless dual-feed motor have two different numbers of pole-pairs and, therefore be generally disposed on stator number of pole-pairs be respectively and
Double winding, be corresponding to it, rotor also require and meanwhile have number of pole-pairs and, and require looked over from rotor side, both poles
The corresponding rotating excitation field of logarithm turns to opposite.
In patent document CN200910061297, CN201110345871, CN201210306373 that China has applied
And in ZL201511003984.X, the technical solution about phase-wound rotor brushless dual-feed motor is described.It is this brushless double
It feeds machine rotor to design using slot ripples principle, coil count and distribution form and span and the number of turns etc. can be selected flexibly
It selects, harmonic content is small, thus might have more preferable performance.But this wound rotor winding is compared with conventional winding, it can be with
The winding scheme number of selection is more, and design method is relative complex with the mode of connection, and it is lack of standardization to be easy that there are coil end structures, connects
The problems such as line end is misaligned.
In addition, the number of pole-pairs p of this rotor winding1And p2, it can be there are many selection mode, wherein number of pole-pairs ratio p1:
p2=2:4 is a kind of more commonly used ultimate ratio, and in the biggish situation of motor large capacity, coil turn need to make of rectangular conductor,
At this moment the irregular problem of coil end structure shape will be protruded more.
Summary of the invention
To solve technical problem present in background technique, the present invention proposes that a kind of alternating-current brushless double feedback electric engine Wound-rotor type turns
Sub- winding and preparation method thereof, coil count and distribution form are reasonable, span and the number of turns can flexible choice, harmonic content
Small, service performance is high, and design method is simple, and the mode of connection is simple, and coil end structure is regular, terminals marshalling.
A kind of alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention, including the double-deck sub- winding of a three-phase
With a sub- winding of three-phase single-layer；The double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer are compound and constitute three layers of winding of three-phase；Three
Three layers of winding of phase have p1And p2Two different numbers of pole-pairs, and its number of pole-pairs ratio is p1: p2=2:4；
In three layers of winding of three-phase, every phase winding is connected in series by two sub- phase windings and self-contained is closed circuit, in two sub- windings
Coil pitch it is different, but coil turn is identical
In the present invention, winding coil number and distribution form are reasonable, span and the number of turns can flexible choice, harmonic content is small, makes
With performance height.
In the present invention, it is also proposed that a kind of preparation method of alternating-current brushless double feedback electric engine wound rotor winding, including it is following
Step:
S1 is obtained in basic number of pole-pairs p1And p2The three-phase Double Layer Winding of 120 ° of electrical angles of lower mean difference, three-phase Double Layer Winding
Each coil short is coupled to a closed circuit, the corresponding coil of every slot；Wherein, p1: p2=2:4, the preliminary slot number Z of rotorr
= p1+ p2；
S2, by the preliminary slot number Z of rotorrIt is split into multiple rotor slot numbers, rotor slot number Z=kr Zr；Wherein krTo split slot coefficient
And krFor positive integer；
Coil in S1 in a three-phase Double Layer Winding is split into n by S3r1A coil, coil is along rotor circumference in rotor slot
It places, to constitute the double-deck sub- winding of a three-phase, nr1< kr,；Wherein, nr1A coil successively interval αr=360 °/Z slot-pitch angle is set
It sets, pitch yr1；
Coil in S1 in another three-phase Double Layer Winding is split into n by S4r2A coil, coil is along rotor circumference in rotor
It places and is connected in series in slot, to constitute a sub- winding of three-phase single-layer；Wherein, nr2A coil successively interval αr=360 °/Z slot
Elongation setting, pitch yr2；Meanwhile nr2With yr2Also meet condition: yr2=Z/(p1+ p2)r- nr2；
The phase axis spacing of S5, the double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer is LrαrA slot-pitch angle corresponds to phase winding
It is coupled to closed circuit after series connection；Wherein, 0 < Lr< 1；
S6, adjustment split slot coefficient, two sub- winding phase axis spacing, coil number and with coil pitch and, with improve number of pole-pairs and
Winding coefficient and reduce high order slot ripples magnetomotive force relative magnitude.
In the present invention, Winding Design method is simple, and the mode of connection is simple, and coil end structure is regular, and terminals arrangement is whole
Together, rotor windings service performance is high.
Detailed description of the invention
Fig. 1 is the mode of connection of alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention and preparation method thereof
Schematic diagram.
Fig. 2 is 90 slots 4/ in alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention and preparation method thereof
8 pole rotor windings wiring diagrams.
In Fig. 1, A2, B2 and C2 indicate the double-deck sub- winding of three-phase；A1, B1 and C1 indicate the sub- winding of three-phase single-layer；Fig. 2
In, the double-deck sub- affiliated coil slot number of winding, pitch y are indicated in doublet framer1=12, single dotted line frame is interior to indicate the sub- winding institute of single layer
Belong to coil slot number, pitch yr2=10。
Specific embodiment
As shown in Figs. 1-2, Fig. 1 is that the alternating-current brushless double feedback electric engine wound rotor winding mode of connection proposed by the present invention is shown
It is intended to.
Fig. 2 is that 90 slot, the 4/8 pole rotor windings of alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention connect
Line chart.
Embodiment 1
Referring to Fig.1, a kind of alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention, including the double-deck son of a three-phase
Winding and a sub- winding of three-phase single-layer；The double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer it is compound and constitute three layers of three-phase around
Group；Three layers of winding of three-phase have p1And p2Two different numbers of pole-pairs, and its number of pole-pairs ratio is p1: p2=2:4；
In three layers of winding of three-phase, every phase winding is connected in series by two sub- phase windings and self-contained is closed circuit, in two sub- windings
Coil pitch it is different, but coil turn is identical.
In the present invention, winding coil number and distribution form are reasonable, span and the number of turns can flexible choice, harmonic content
Small, service performance is high, and design method is simple, and the mode of connection is simple, and coil end structure is regular, terminals marshalling.
The present invention proposes the preparation method for also proposing a kind of alternating-current brushless double feedback electric engine wound rotor winding, including following step
It is rapid:
S1 is obtained in basic number of pole-pairs p1And p2The three-phase Double Layer Winding of 120 ° of electrical angles of lower mean difference, three-phase Double Layer Winding
Each coil short is coupled to a closed circuit, the corresponding coil of every slot；Wherein, p1: p2=2:4, the preliminary slot number Z of rotorr
= p1+ p2；
S2, by the preliminary slot number Z of rotorrIt is split into multiple rotor slot numbers, rotor slot number Z=kr Zr；Wherein krTo split slot coefficient
And krFor positive integer；
Coil in S1 in a three-phase Double Layer Winding is split into n by S3r1A coil, coil is along rotor circumference in rotor slot
It places, to constitute the double-deck sub- winding of a three-phase, nr1< kr,；Wherein, nr1A coil successively interval αr=360 °/Z slot-pitch angle is set
It sets, pitch yr1；
Coil in S1 in another three-phase Double Layer Winding is split into n by S4r2A coil, coil is along rotor circumference in rotor
It places and is connected in series in slot, to constitute a sub- winding of three-phase single-layer；Wherein, nr2A coil successively interval αr=360 °/Z slot
Elongation setting, pitch yr2；Meanwhile nr2With yr2Also meet condition: yr2=Z/(p1+ p2)-nr2；
The phase axis spacing of S5, the double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer is LrαrA slot-pitch angle corresponds to phase winding
It is coupled to closed circuit after series connection；Wherein, 0 < Lr< 1；
S6, adjustment split slot coefficient, two sub- winding phase axis spacing, coil number and with coil pitch and, with improve number of pole-pairs and
Winding coefficient and reduce high order slot ripples magnetomotive force relative magnitude.
In the present invention, equipment designing method is simple, and the mode of connection is simple, and coil end structure is regular, and terminals arrangement is whole
Together, rotor windings service performance is high.
Embodiment 2
Referring to Fig. 2, a kind of alternating-current brushless double feedback electric engine wound rotor winding proposed by the present invention, including the double-deck son of a three-phase
Winding and a sub- winding of three-phase single-layer；The double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer it is compound and constitute three layers of three-phase around
Group；Three layers of winding of three-phase have p1And p2Two different numbers of pole-pairs, p1=2, p2=4；
In three layers of winding of three-phase, every phase winding is connected in series by two sub- phase windings and self-contained is closed circuit, in two sub- windings
Coil pitch it is different, but coil turn is identical.
The present invention proposes the preparation method for also proposing a kind of alternating-current brushless double feedback electric engine wound rotor winding, including following step
It is rapid:
S1 is obtained in basic number of pole-pairs p1And p2The three-phase Double Layer Winding of 120 ° of electrical angles of lower mean difference, three-phase Double Layer Winding
Each coil short is coupled to a closed circuit, the corresponding coil of every slot；Wherein, p1: p2=2:4, the preliminary slot number Z of rotorr
= p1+ p2；
S2, by the preliminary slot number Z of rotorrIt is split into multiple rotor slot numbers, rotor slot number Z=kr Zr；Wherein krTo split slot coefficient
And krFor positive integer；
Coil in S1 in a three-phase Double Layer Winding is split into n by S3r1A coil, coil is along rotor circumference in rotor slot
It places, to constitute the double-deck sub- winding of a three-phase, nr1< kr,；Wherein, nr1A coil successively interval αr=360 °/Z slot-pitch angle is set
It sets, pitch yr1；
Coil in S1 in another three-phase Double Layer Winding is split into n by S4r2A coil, coil is along rotor circumference in rotor
It places and is connected in series in slot, to constitute a sub- winding of three-phase single-layer；Wherein, nr2A coil successively interval αr=360 °/Z slot
Elongation setting, pitch yr2；Meanwhile nr2With yr2Also meet condition: yr2=Z/(p1+ p2)-nr2；
The phase axis spacing of S5, the double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer is LrαrA slot-pitch angle corresponds to phase winding
It is coupled to closed circuit after series connection；Wherein, 0 < Lr< 1；
S6, adjustment split slot coefficient, two sub- winding phase axis spacing, coil number and with coil pitch and, with improve number of pole-pairs and
Winding coefficient and reduce high order slot ripples magnetomotive force relative magnitude；
Wherein, Zr= p1+ p2=6, yr1=12, nr1=10, kr=15, Z=kr Zr=90, that is, a branch contains 10 coils, every phase
There are two branches, is double-deck sub- winding；
A2One branch coil number of phase is taken as 1,2,3,4,5,6,7,8,9,10；Another branch coil number of same-phase therewith
46,47,48,49,50,51,52,53,54,55；
B2One branch coil number of phase is taken as 16,17,18,19,20,21,22,23,24,25；Another branch of same-phase therewith
Road coil number 61,62,63,64,65,66,67,68,69,70；
C2One branch coil number of phase is taken as 31,32,33,34,35,36,37,38,39,40, therewith another branch of same-phase
Road coil number 76,77,78,79,80,81,82,83,84,85；
Wherein, yr2=10, nr2=5；
yr2=Z/(p1+ p2)-nr2=90/60-5=10 are the sub- winding of a single layer；
Corresponding A1One branch coil number of phase takes 4, and 5,6,7,8 another branch coils number take 49,50,51,52,53；Corresponding B1
One branch coil number of phase takes 19,20,21,22,23, and another branch coil number takes 64,65,66,67,68, corresponding C1Xiang Yi
Bar branch coil number takes 34,35,36,37,38, and another branch coil number takes 79,80,81,82,83；
The phase axis spacing of the two double-deck sub- windings and the sub- winding of single layer is Lr=0.5 slot pitch, will be belonging to each phase winding branch
After coil series connection, being linked together by the short-circuit line of closure, every phase has two branches, and three-phase shares six branches, finally
The winding scheme wiring diagram arrived is as shown in Fig. 2.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of alternating-current brushless double feedback electric engine wound rotor winding, which is characterized in that including the double-deck sub- winding of three-phase and
One sub- winding of three-phase single-layer；The double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer are compound and constitute three layers of winding of three-phase；Three-phase
Three layers of winding have p1And p2Two different numbers of pole-pairs, and its number of pole-pairs ratio is p1: p2=2:4；
In three layers of winding of three-phase, every phase winding is connected in series by two sub- phase windings and self-contained is closed circuit, in two sub- windings
Coil pitch it is different, but coil turn is identical.
2. alternating-current brushless double feedback electric engine wound rotor winding according to claim 1 and the alternating-current brushless duplex feeding proposed
Machine wound rotor winding preparation method, which comprises the following steps:
S1 is obtained in basic number of pole-pairs p1And p2The three-phase Double Layer Winding of 120 ° of electrical angles of lower mean difference, three-phase Double Layer Winding it is every
A coil short is coupled to a closed circuit, the corresponding coil of every slot；Wherein, p1: p2=2:4, the preliminary slot number Z of rotorr=
p1+ p2；
S2, by the preliminary slot number Z of rotorrIt is split into multiple rotor slot numbers, rotor slot number Z=kr Zr；Wherein krFor split slot coefficient and
krFor positive integer；
Coil in S1 in a three-phase Double Layer Winding is split into n by S3r1A coil, coil is along rotor circumference in rotor slot
It places, to constitute the double-deck sub- winding of a three-phase, nr1< kr,；Wherein, nr1A coil successively interval αr=360 °/Z slot-pitch angle is set
It sets, pitch yr1；
Coil in S1 in another three-phase Double Layer Winding is split into n by S4r2A coil, coil is along rotor circumference in rotor slot
Middle placement and series connection, to constitute a sub- winding of three-phase single-layer；Wherein, nr2A coil successively interval αr=360 °/Z slot pitch
Angle setting, pitch yr2；Meanwhile nr2With yr2Also meet condition: yr2=Z/(p1+ p2)-nr2；
The phase axis spacing of S5, the double-deck sub- winding of three-phase and the sub- winding of three-phase single-layer is LrαrA slot-pitch angle corresponds to phase winding
It is coupled to closed circuit after series connection；Wherein, 0 < Lr< 1；
S6, adjustment split slot coefficient, two sub- winding phase axis spacing, coil number and with coil pitch and, with improve number of pole-pairs and
Winding coefficient and reduce high order slot ripples magnetomotive force relative magnitude.
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| CN201811449308.9A CN109286258B (en) | 2018-11-30 | 2018-11-30 | Preparation method of wound rotor winding of alternating-current brushless double-fed motor |
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|---|---|---|---|
| CN201811449308.9A CN109286258B (en) | 2018-11-30 | 2018-11-30 | Preparation method of wound rotor winding of alternating-current brushless double-fed motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818442A (en) * | 2019-03-21 | 2019-05-28 | 哈尔滨理工大学 | A kind of alternating-current brushless double feedback electric engine |
| CN109888956A (en) * | 2019-03-21 | 2019-06-14 | 哈尔滨理工大学 | A kind of brushless dual-feed motor rotor windings design method |
| CN111181470A (en) * | 2020-03-06 | 2020-05-19 | 淄博高新区华科大高效节能电机技术研发中心 | Harmonic suppression method for brushless double-fed motor |
| CN111371208A (en) * | 2020-03-18 | 2020-07-03 | 金路达集团有限公司 | Alternating current brushless double-fed motor and design method of winding rotor distributed winding thereof |
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| CN111371208A (en) * | 2020-03-18 | 2020-07-03 | 金路达集团有限公司 | Alternating current brushless double-fed motor and design method of winding rotor distributed winding thereof |
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| CN109286258B (en) | 2021-05-14 |
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