CN109038905A - Symmetrical four branches wave winding connection method - Google Patents
Symmetrical four branches wave winding connection method Download PDFInfo
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- CN109038905A CN109038905A CN201811001347.2A CN201811001347A CN109038905A CN 109038905 A CN109038905 A CN 109038905A CN 201811001347 A CN201811001347 A CN 201811001347A CN 109038905 A CN109038905 A CN 109038905A
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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
Abstract
The present invention discloses a kind of symmetrical four branches wave winding connection method, and the number of pole-pairs of winding is odd number, and MgO-ZrO_2 brick 2n, n are any positive integer；Each phase winding regularity of distribution is identical；Two facies tracts of every phase winding are made of two parallel branches respectively；The regularity of distribution of two parallel branches is different, and by adjusting the coil spread of certain a pair of of pole, composition span is the symmetrical four branches wave winding of 3 × 2n, 3 × 2n+1 and 3 × 2n- (2n-1) a slot pitch；The present invention has broken the limitation of conventional AC winding theory, symmetrical four branches wave winding connection method is provided for number of pole-pairs for the motor of odd number, efficiently solve large-scale pumped storage power motor and hydrogenerator capacity, voltage and the unmatched contradiction of revolving speed, improve the performance of motor, the craftsmanship for installing structurally reasonable, the manufacture of motor is excellent, maintenance is simple, reliable for operation, and improves the technical-economic index of electric power station system.
Description
Technical field
The present invention relates to exchange winding fields, and in particular to a kind of symmetrical four branches wave winding connection method.
Background technique
Stator winding is the important component for realizing energy converting between mechanical, directly affects the properties of motor.Statistics puts into operation
Hydrogenerator discovery, number of pole-pairs is that the hydrogenerator of odd number is fewer, and capacity is also smaller, the circuitry number of stator winding
A predominantly branch and two branches are mainly limited by the optional circuitry number of stator winding.According to Theory of Motor Winding, number of pole-pairs is
The parallel branch number of the hydraulic generator stator winding of odd number is either very little or too many, four branch windings is not present, or even not
There are three branch windings, this is also a less major reason of this kind of hydrogenerator.And as capacity increase more highlights
Capacity, voltage and the unmatched contradiction of revolving speed, bring difficulty to design of electrical motor, make motor performance and unreasonable structure, power station system
The technical-economic index of system is bad.The method solved in the past is or abandons under this revolving speed the superior performance of the hydraulic turbine and use it
The hydraulic turbine of his revolving speed or receive the unreasonable performance of motor, costs dearly.
Summary of the invention
The present invention discloses a kind of symmetrical four branches wave winding connection method, and wiring is simple and convenient, can efficiently solve capacity
The unmatched contradiction of voltage revolving speed improves the Technical Economy of motor or even entire electric power station system.In order to achieve the above object, originally
The technical solution of invention are as follows:
The symmetrical four branches wave winding connection method of one kind disclosed by the invention, it is characterized in that: the number of pole-pairs p of winding is surprise
Number, i.e. p=2m+1, MgO-ZrO_2 brick 2n, m are zero and any positive integer, and n is any positive integer；Each phase winding distribution rule
It restrains identical, it may be assumed that every phase winding includes two facies tracts, and every facies tract is made of two parallel branch windings, and the electricity of each branch winding
Gesture and magnetic potential are equal, and branch winding is symmetrical；The potential size of phase winding, time-phase angle difference and the magnetic potential size of phase winding, sky
Between phase angle difference be equal, phase winding is symmetrical；For the sake of numbering conveniently, any positive integer M is introduced, and M is more than or equal to 2n and 2m+
Big person in 1；The structure of two parallel branch windings of every facies tract are as follows:
For first pair pole to m to pole, m coil of each column is followed in series to form 2n coil according to the principle that potential is added
Group, respectively M+1 coil group, M+2 coil group, until M+2n coil group；The span of coil is 3 × 2n slot pitch；
M+1 to the positive facies tract of pole, column number be in n slot of odd number top bar and span be 3 × 2n+1 slot pitch,
Column number is that lower bar is sequentially connected in n slot of even number, n coil group of composition, respectively 2M+1 coil group, No. 2M+3
Coil group, until 2M+2n-1 coil group；It is with span by top bar in n-1 slot that column number is even number 2 to 2 (n-1)
Lower bar is sequentially connected in 3 × 2n+1 slot pitch, the n-1 slot that column number is odd number, constitutes n-1 coil group, respectively
2M+2 coil group, 2M+4 coil group, until 2M+2 (n-1) number coil group；By column number be 2n slot in top bar with
Lower bar connects in the slot that span is a slot pitch of 3 × 2n- (2n-1), column number is 1, constitutes a coil group, is No. 2M+2n
Coil group；
For m+2 to best 2m+1 to pole, m coil of each column is followed in series to form 2n line according to the principle that potential is added
Circle group, respectively 3M+1 coil group, 3M+2 coil group, until 3M+2n coil group；The span of coil is 3 × 2n slot；
The structure of the first branch are as follows:
By M+1 coil group, 2M+1 coil group, 3M+2 coil group, M+3 coil group, 2M+3 coil group, 3M+4
Number coil group, until M+2n-1 coil group, 2M+2n-1 coil group, the principle that 3M+2n coil group is added according to potential according to
Secondary first branch in series；
The structure of second branch are as follows:
By M+2 coil group, 2M+2 coil group, 3M+3 coil group, M+4 coil group, 2M+4 coil group, 3M+
5, until 3M+2n-1 coil group, M+2n coil group, 2M+2n coil group, the original that 3M+1 coil group is added according to potential
Then it is followed in series to form Article 2 branch.
The symmetrical four branches wave winding connection method of one kind disclosed by the invention, it is characterized in that: the span of the coil differs,
Respectively 3 × 2n, 3 × 2n+1 and 3 × 2n- (2n-1) a slot pitch, the adjustment of coil spread are carried out in non-outgoing line side.
The technology of the present invention effect
Theoretical according to exchange winding, number of pole-pairs is the winding of odd number, and parallel branch number is either very little or too many, is not deposited
In four branch windings, or even three branch windings are not present.Exactly this reason, brings great difficulty to design of electrical motor, makes motor
There is a series of problems, such as capacity, voltage and the unmatched contradiction of revolving speed and performance, unreasonable structure.The method solved in the past
It is or abandons the superior performance of the hydraulic turbine under this revolving speed and use the hydraulic turbine of other revolving speeds or receive motor and close not to the utmost
The performance of reason, costs dearly.And the present invention has broken the limitation of exchange winding theory, is changed by the special techniques method such as jumper
Type transformer coil span obtains symmetrical four branches wave winding, provides symmetrical four branches wave winding for number of pole-pairs for the motor of odd number
Connection method；Although four branch windings are not the conventional alternative circuitry numbers of odd number pole, manufacture and the erector of winding are not made
Skill is complicated；Conversely, because slot number is reduced, flute profile becomes large-sized, the sectional dimension of bar can be made reasonable, convenient for manufacture and peace
Dress；Stator tooth is increased simultaneously away from being conducive to the installation and binding of bar, pre- security reliability that is anticorona, improving motor；Separately
Outside, since circuitry number is reduced, shorten stator core length, factory building height can be reduced, reduce the construction cost in power station；It is heavier
What is wanted is the performance indicators such as the subtransient reactance that can improve motor, keeps motor performance more reasonable, and improve the skill of electric power station system
Art economic indicator；In conclusion using four branch windings, large capacity pump storage machines and hydraulic generator are efficiently solved
Machine capacity, voltage and the unmatched contradiction of revolving speed, can be improved the performance of motor, make structurally reasonable, the manufacture mounting process of motor
Property is excellent, maintenance is simple, reliable for operation, while improving the technical-economic index of entire electric power station system.
Detailed description of the invention
Fig. 1 is A facies tract coil position distribution schematic diagram of the present invention.
Fig. 2 is each branch winding connection schematic diagram of A facies tract of the present invention.
Specific embodiment
The specific embodiment of the invention is described as follows, of the invention in order to facilitate understanding by those skilled in the art, but is answered
This understands that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art, as long as various
Change in the spirit and scope of the present invention that the attached claims limit and determine, these variations are it will be apparent that one
The innovation and creation using present inventive concept are cut in the column of protection.
The present invention discloses a kind of symmetrical four branches wave winding connection method, it is characterized in that: the number of pole-pairs p of winding is odd number,
That is p=2m+1, MgO-ZrO_2 brick 2n, m are zero and any positive integer, and n is any positive integer；Each phase winding regularity of distribution phase
Together, it may be assumed that every phase winding includes two facies tracts, and every facies tract is made of two parallel branch windings, and the potential of each branch winding and
Magnetic potential is equal, and branch winding is symmetrical；Magnetic potential size, the space phase of the potential size of phase winding, time-phase angle difference and phase winding
Angular difference is equal, and phase winding is symmetrical；For the sake of numbering conveniently, any positive integer M is introduced, and M is more than or equal in 2n and 2m+1
Big person；The structure of two parallel branch windings of every facies tract are as follows:
For first pair pole to m to pole, m coil of each column is followed in series to form 2n coil according to the principle that potential is added
Group, respectively M+1 coil group, M+2 coil group, until M+2n coil group；The span of coil is 3 × 2n slot pitch；
M+1 to the positive facies tract of pole, column number be in n slot of odd number top bar and span be 3 × 2n+1 slot pitch,
Column number is that lower bar is sequentially connected in n slot of even number, n coil group of composition, respectively 2M+1 coil group, No. 2M+3
Coil group, until 2M+2n-1 coil group；It is with span by top bar in n-1 slot that column number is even number 2 to 2 (n-1)
Lower bar is sequentially connected in 3 × 2n+1 slot pitch, the n-1 slot that column number is odd number, constitutes n-1 coil group, respectively
2M+2 coil group, 2M+4 coil group, until 2M+2 (n-1) number coil group；By column number be 2n slot in top bar with
Lower bar connects in the slot that span is a slot pitch of 3 × 2n- (2n-1), column number is 1, constitutes a coil group, is No. 2M+2n
Coil group；
For m+2 to best 2m+1 to pole, m coil of each column is followed in series to form 2n line according to the principle that potential is added
Circle group, respectively 3M+1 coil group, 3M+2 coil group, until 3M+2n coil group；The span of coil is 3 × 2n slot；
The structure of the first branch are as follows:
By M+1 coil group, 2M+1 coil group, 3M+2 coil group, M+3 coil group, 2M+3 coil group, 3M+4
Number coil group, until M+2n-1 coil group, 2M+2n-1 coil group, the principle that 3M+2n coil group is added according to potential according to
Secondary first branch in series；
The structure of second branch are as follows:
By M+2 coil group, 2M+2 coil group, 3M+3 coil group, M+4 coil group, 2M+4 coil group, 3M+
5, until 3M+2n-1 coil group, M+2n coil group, 2M+2n coil group, the original that 3M+1 coil group is added according to potential
Then it is followed in series to form Article 2 branch.
The present invention discloses a kind of symmetrical four branches wave winding connection method, it is characterized in that: the span of the coil differs, point
Not Wei 3 × 2n, 3 × 2n+1 and 3 × 2n- (2n-1) a slot pitch, the adjustment of coil spread non-outgoing line side carry out.
For the sake of clarity, for the symmetrical four branches wave winding connection method of one kind disclosed by the invention, with example to tool
Body embodiment is described in detail.
The present invention discloses a kind of symmetrical four branches wave winding connection method, and the number of pole-pairs 7 (m=3) of winding is odd number, every pole
Every phase slot number is 6 (n=3)；Each phase winding regularity of distribution is identical；Every phase winding includes two facies tracts, and every facies tract is by four branches
Winding is constituted, and each branch winding regularity of distribution is different；Electric potential of branch and magnetic potential are equal, and branch winding is symmetrical；The potential of phase winding
Size, time-phase angle difference and magnetic potential size, space-phase angle difference are equal, and phase winding is symmetrical；Fig. 1 is A facies tract winding wire of the present invention
Position distribution schematic diagram is enclosed, all coils are numbered in figure, the number of slot is numbered as coil where using coil upper layer side,
First columns is number of pole-pairs serial number, and unified to use Roman number layout, the first behavior column number, maximum column number is every extremely every phase slot
Number 6；For the sake of numbering conveniently, it is assumed that M=10；Since each facies tract winding regularity of distribution is identical, below only with two branch of A facies tract
It is specifically described for the connection of road winding；
3 the A facies tract of the IIIth pair of pole of Ith pair of best, each column coils are followed in series to form 6 according to the principle that potential is added
Coil group, respectively No. 11 coil groups, No. 12 coil groups, No. 13 coil groups, No. 14 coil groups, No. 15 coil groups, No. 16 coils
Group, coil spread are 18 slot pitches；The original that No. 11 coil groups are added by Line 1 circle, No. 37 coils and No. 73 coils according to potential
Then it is followed in series to form；No. 12 coil groups are successively gone here and there by the principle that No. 2 coils, No. 38 coils and No. 74 coils are added according to potential
Connection is constituted；No. 13 coil groups are followed in series to form by No. 3 coils, No. 39 coils and No. 75 coils according to the principle that potential is added；
No. 14 coil groups are followed in series to form by No. 4 coils, No. 40 coils and No. 76 coils according to the principle that potential is added；No. 15 coils
Group is followed in series to form by No. 5 coils, No. 41 coils and No. 77 coils according to the principle that potential is added, and No. 16 coil groups are by No. 6
Coil, No. 42 coils and No. 78 coils are followed in series to form according to the principle that potential is added；As shown in Figure 1；
The A facies tract of IVth pair of pole, No. 109 slots that column number is odd number, No. 111 slots, No. 113 slots top bar and span
Lower bar for 19 slot pitches, No. 128 slots that column number is even number, No. 130 slots, No. 132 slots is sequentially connected 3 coils of composition
Group, respectively No. 21 coil groups, No. 23 coil groups, No. 25 coil groups；No. 110 slots and No. 112 slots for being 2 and 4 by column number
The lower bar of top bar and span is 19 slot pitches, column number is odd number No. 129 slots, No. 131 slots is sequentially connected composition 2
The top bar for No. 114 slots that column number is 6 and span are 13 by a coil group, respectively No. 22 coil groups, No. 24 coil groups
A slot pitch, lower bar one coil group of connected composition for No. 127 slots that column number is 1, are No. 26 coil groups；As shown in Figure 1；
3 the A facies tract of the VIIth pair of pole of Vth pair of best, each column coils are followed in series to form 6 according to the principle that potential is added
A coil group, respectively No. 31 coil groups, No. 32 coil groups, No. 33 coil groups, No. 34 coil groups, No. 35 coil groups, No. 36 lines
Circle group, coil spread are 18 slot pitches；No. 31 coil groups are by No. 145 coils, No. 181 coils and No. 217 coils according to potential phase
The principle added is followed in series to form；No. 32 coil groups are added by No. 146 coils, No. 182 coils and No. 218 coils according to potential
Principle is followed in series to form；The principle that No. 33 coil groups are added by No. 147 coils, No. 183 coils and No. 219 coils according to potential
It is followed in series to form；The principle that No. 34 coil groups are added by No. 148 coils, No. 184 coils and No. 220 coils according to potential is successively
It is in series；No. 35 coil groups are sequentially connected in series by No. 149 coils, No. 185 coils and No. 221 coils according to the principle that potential is added
It constitutes, No. 36 coil groups are sequentially connected in series structure according to the principle that potential is added by No. 150 coils, No. 186 coils and No. 222 coils
At；As shown in Figure 1；
A facies tract first branch winding (i.e. A1 branch winding) are as follows:
By No. 11 coil groups, No. 21 coil groups, No. 32 coil groups, No. 13 coil groups, No. 23 coil groups, No. 34 coil groups,
No. 15 coil groups, No. 25 coil groups, No. 36 coil groups are followed in series to form first branch of A facies tract according to the principle that potential is added
Winding (i.e. A1 branch winding)；Specifically, by Line 1 circle, No. 37 coils, No. 73 coils, No. 109 coils, No. 146 coils, 182
Number coil, No. 218 coils, No. 3 coils, No. 39 coils, No. 75 coils, No. 111 coils, No. 148 coils, No. 184 coils, 220
Number coil, No. 5 coils, No. 41 coils, No. 77 coils, No. 113 coils, No. 150 coils, No. 186 coils and No. 222 coils according to
The principle that potential is added is followed in series to form first branch winding of A facies tract (i.e. A1 branch winding), as shown in Figure 2；
A facies tract second branch winding (i.e. A2 branch winding) are as follows:
By No. 12 coil groups of A facies tract, No. 22 coil groups, No. 33 coil groups, No. 14 coil groups, No. 24 coil groups, No. 35
Coil group, No. 16 coil groups, No. 26 coil groups, No. 31 coil groups are followed in series to form A facies tract according to the principle that potential is added
Two branch windings (i.e. A2 branch winding)；Specifically, by No. 2 coils, No. 38 coils, No. 74 coils, No. 110 coils, No. 147
Coil, No. 183 coils, No. 219 coils, No. 4 coils, No. 40 coils, No. 76 coils, No. 112 coils, No. 149 coils, No. 185
Coil, No. 221 coils, No. 6 coils, No. 42 coils, No. 78 coils, No. 114 coils, No. 145 coils, No. 181 coils and No. 217
Coil is followed in series to form A facies tract Article 2 branch winding (i.e. A2 branch winding) according to the principle that potential is added, such as Fig. 2 institute
Show；
The main feature of the embodiment of the present invention: the span of the coil differs, respectively 18 slot pitches, 19 slot pitches and 13
A slot pitch；And the adjustment of coil spread is carried out in non-outlet side end junction.
Claims (2)
1. a kind of symmetrical four branches wave winding connection method, it is characterized in that: the number of pole-pairs p of winding is odd number, i.e. p=2m+1, often
Extremely every phase slot number is 2n, and m is zero and any positive integer, and n is any positive integer；Each phase winding regularity of distribution is identical, it may be assumed that every phase around
Group includes two facies tracts, and every facies tract is made of two parallel branch windings, and the potential of each branch winding and magnetic potential are equal, branch
Winding is symmetrical；Magnetic potential size, the space-phase angle difference of the potential size of phase winding, time-phase angle difference and phase winding are equal, phase
Winding is symmetrical；For the sake of numbering conveniently, any positive integer M is introduced, and M is more than or equal to the big person in 2n and 2m+1；It is described every
The structure of two parallel branch windings of facies tract are as follows:
For first pair pole to m to pole, m coil of each column is followed in series to form 2n coil group according to the principle that potential is added, point
Not Wei M+1 coil group, M+2 coil group, until M+2n coil group；The span of coil is 3 × 2n slot pitch；
For m+1 to the positive facies tract of pole, column number is that top bar and span are 3 × 2n+1 slot pitch, column volume in n slot of odd number
It number is sequentially connected for lower bar in n slot of even number, n coil group of composition, respectively 2M+1 coil group, 2M+3 coil
Group, until 2M+2n-1 coil group；By top bar in n-1 slot that column number is even number 2 to 2 (n-1) and span be 3 ×
Lower bar is sequentially connected in 2n+1 slot pitch, the n-1 slot that column number is odd number, constitutes n-1 coil group, respectively 2M+2
Number coil group, 2M+4 coil group, until 2M+2 (n-1) number coil group；It is top bar and span in the slot of 2n by column number
It is connected for lower bar in a slot pitch of 3 × 2n- (2n-1), the slot that column number is 1, constitutes a coil group, be 2M+2n coil
Group；
For m+2 to best 2m+1 to pole, m coil of each column is followed in series to form 2n coil according to the principle that potential is added
Group, respectively 3M+1 coil group, 3M+2 coil group, until 3M+2n coil group；The span of coil is 3 × 2n slot；
The structure of the first branch are as follows:
By M+1 coil group, 2M+1 coil group, 3M+2 coil group, M+3 coil group, 2M+3 coil group, 3M+4 line
Circle group, until M+2n-1 coil group, 2M+2n-1 coil group, the principle that 3M+2n coil group is added according to potential are successively gone here and there
Connection constitutes first branch；
The structure of second branch are as follows:
By M+2 coil group, 2M+2 coil group, 3M+3 coil group, M+4 coil group, 2M+4 coil group, 3M+5, directly
To 3M+2n-1 coil group, M+2n coil group, 2M+2n coil group, the principle that 3M+1 coil group is added according to potential according to
Secondary Article 2 branch in series.
2. the symmetrical four branches wave winding connection method of one kind according to claim 1, it is characterized in that: the span of the coil
It differs, respectively 3 × 2n, 3 × 2n+1 and 3 × 2n- (2n-1) a slot pitch, the adjustment of coil spread is carried out in non-outgoing line side.
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| CN201811001347.2A CN109038905A (en) | 2018-08-30 | 2018-08-30 | Symmetrical four branches wave winding connection method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU773839A1 (en) * | 1979-04-04 | 1980-10-23 | Предприятие П/Я А-7376 | Asymmetric multi-phase lap winding |
| CN103119832A (en) * | 2010-05-25 | 2013-05-22 | Abb有限公司 | Winding for an AC machine |
| CN103580342A (en) * | 2013-11-22 | 2014-02-12 | 哈尔滨电机厂有限责任公司 | Connection method for unconventionality symmetric windings |
| CN104052180A (en) * | 2014-07-09 | 2014-09-17 | 东南大学 | Multiple symmetrical winding magnetic flux switching motor and winding design method thereof |
| CN104184240A (en) * | 2014-09-04 | 2014-12-03 | 东方电气集团东方电机有限公司 | Wiring method for 252-groove 14-pole symmetric four-branch-circuit double-layer three-phase windings |
| CN104184239A (en) * | 2014-09-04 | 2014-12-03 | 东方电气集团东方电机有限公司 | Connecting method of non-60-degree phase belt symmetric windings |
-
2018
- 2018-08-30 CN CN201811001347.2A patent/CN109038905A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU773839A1 (en) * | 1979-04-04 | 1980-10-23 | Предприятие П/Я А-7376 | Asymmetric multi-phase lap winding |
| CN103119832A (en) * | 2010-05-25 | 2013-05-22 | Abb有限公司 | Winding for an AC machine |
| CN103580342A (en) * | 2013-11-22 | 2014-02-12 | 哈尔滨电机厂有限责任公司 | Connection method for unconventionality symmetric windings |
| CN104052180A (en) * | 2014-07-09 | 2014-09-17 | 东南大学 | Multiple symmetrical winding magnetic flux switching motor and winding design method thereof |
| CN104184240A (en) * | 2014-09-04 | 2014-12-03 | 东方电气集团东方电机有限公司 | Wiring method for 252-groove 14-pole symmetric four-branch-circuit double-layer three-phase windings |
| CN104184239A (en) * | 2014-09-04 | 2014-12-03 | 东方电气集团东方电机有限公司 | Connecting method of non-60-degree phase belt symmetric windings |
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