CN104506006B - A kind of double fractional-slot concentratred winding resistance to shorting magnetoes - Google Patents
A kind of double fractional-slot concentratred winding resistance to shorting magnetoes Download PDFInfo
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- CN104506006B CN104506006B CN201410803634.0A CN201410803634A CN104506006B CN 104506006 B CN104506006 B CN 104506006B CN 201410803634 A CN201410803634 A CN 201410803634A CN 104506006 B CN104506006 B CN 104506006B
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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
-
- 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
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
- H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating
-
- 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 double fractional-slot concentratred winding resistance to shorting magnetoes, the groove of generator unit stator 24, the pole of number of poles 20, it is characterized in that generator amature is permanent magnetic field, generator unit stator is double fractional-slot concentratred windings, 2 sets of three-phase symmetrical fractional-slot winding are laid in generator unit stator groove, its coil pitch is Y=1.Wherein a set of three-phase symmetrical Double Layer Winding is that generating winding is main winding, another set of three-phase symmetrical Single-layer Windings are assists winding, without mutual inductance between assists winding and main winding, generation electromotive force is not sensed yet, assists winding and each corresponding series connection of main winding, external phase three-wire three output AC voltage, assists winding can suppress load current distortion during steady operation, improve band non-linear load capacity；When generator short circuit, assists winding limits short circuit current, magneto is had strong anti-short circuit capability in itself, improves the reliability of generator and electric power system.
Description
Technical field
The present invention relates to a kind of power equipment, and in particular to be a kind of double fractional-slot concentratred winding resistance to shorting permanent magnet generators
Machine.
Background technology
Magneto is increasingly widely used, and magneto has the advantages that simple in construction, efficiency high, but also has one
A little defects, such as voltage-regulation are difficult, and short circuit current is very big during high speed, easily causes permanent magnet demagnetization, and winding is easy to burn,
The wherein solution of the existing a variety of composite excitation modes of voltage-regulation difficult problem, is not related in this invention scope.And such as
What improves magneto anti-short circuit capability itself, then or at present a technological difficulties problem in industry.
The content of the invention
It is an object of the invention to provide a kind of new construction of magneto winding, magneto winding is set to have in itself
There is powerful anti-short circuit capability.
The present invention is achieved like this, a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, generator amature
For permanent magnetic field, there are 20 magnetic poles, generator unit stator has 24 stator slots, it is characterised in that：Wherein two set three of placement is relative
The fractional-slot concentratred winding of title, coil Jie Ju Zhuo are Y=1；Three-phase main winding is AX, BY, CZ, is the Double Layer Winding that pitch is 1,
Three-phase assists winding is ax, by, cz, is the Single-layer Windings that pitch is 1, after each corresponding series connection of two sets of windings, x, y, z are connected in
Together, it is not brought up, exit A, B, C are respectively labeled as U, V, W three-phases, phase three-wire three output alternating current.
Further, a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, are arranged when in 24 grooves of stator
Main winding be Double Layer Winding, coil pitch 1, each coil-conductor phase in 24 grooves is followed successively by：A8A1, Z1B1, Y1Y2,
B2Z1, C1C2, Z2A2, X2X3, A3Y3, B3B4, Y4C3, Z3Z4, C4X4, A4A5, X5B5, Y5Y6, B6Z5, C5C6, Z6A6,
X6X7,A7Y7,B7B8,Y8C7,Z7Z8,C8X8；U phases are AX windings, AX by A1X1, A2X2, A3X3, A4X4, A5X5, A6X6,
Eight coils of A7X7, A8X8 are sequentially connected in series；Similarly, V phases are BY windings, are made up of eight windings in series of B1Y1 to B8Y8, W
It is mutually CZ phases, is formed by eight windings in series of C1Z1 to C8Z8.
Further, a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, or when cloth in 24 grooves of stator
The assists winding put is Single-layer Windings, coil pitch 1, and each coil-conductor phase in 24 grooves is followed successively by：a1, x1, b1, y1, c1,
z1；a2, x2, b2, y2, c2, z2；a3, x3, b3, y3, c3, z3；a4, x4, b4, y4, c4, z4；U phases are ax windings, and ax is by a1x1, a2x2,
a3x3, a4x4Four coils are sequentially connected in series and formed；Similarly, v phases are by windings, and by is by b1y1To b4y4Four coils are sequentially connected in series group
Into w phases are cz windings, and cz is by c1z1To c4z4Four coils are sequentially connected in series.
Further, a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, all coils are all directly wound on
On stator tooth, technique is simple, and end is short, and without mutual inductance between two sets of windings, wherein assists winding is a kind of real impedance winding, aid in around
Group, which has, suppresses load current distortion, improves band rectification quasi-nonlinear load capacity, improves the effect of resistance to shorting current capacity, so as to
Significantly improve the fault-tolerant ability of magneto and the reliability of electric power system.
The solution have the advantages that：Threephase stator winding is by double fractional-slot collection in a kind of groove of permanent magnet generator stator 24
Middle winding is formed, wherein main winding AX, and BY, CX are that the pitch of a set of 20 pole is 1 Double Layer Winding, wherein assists winding ax, by,
Cz is the Single-layer Windings that a set of pitch is also 1, and all windings are all that technique is simple directly around on the stator teeth, and end is short, two sets
Without mutual inductance between winding, when wiring works, assists winding, which serves, suppresses load current distortion effect, and it is non-thread to improve band rectification class
Property load capacity, and have strong resistance to shorting current capacity, significantly improve the fault-tolerant ability and electric power system of magneto
Reliability, reached invention purpose.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention.
Embodiment
The present invention be such to work and implement, a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, mainly
Structural parameters are the groove of number of stator slots 24, the pole of number of poles 20, the phase of the number of phases 3, rotor permanent magnet structure；It is characterized in that：Only to stator around
Group structure is designed, by stator winding design fractional-slot concentratred winding in pairs, also i.e. by stator winding design into two sets of three-phases
Symmetrical fractional-slot concentratred winding, the pitch of this two sets of each coils of three-phase symmetric winding is Y=1.
Wherein a set of three-phase symmetric winding is that generating winding is also main winding, and main winding three-phase has 24 coils, each line
Circle is directly wound on each tooth of stator respectively, therefore 2 conductors are disposed with each groove, is Double Layer Winding, in 24 grooves
The phase distribution of coil conductor such as following table defined：
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Phase | A8A1 | X1B1 | Y1Y2 | B2Z1 | C1C2 | Z2A2 | X2X3 | A3Y3 | B3B4 | Y4C3 | Z3Z4 | C4X4 |
| Groove number | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Phase | A4A5 | X5B5 | Y5Y6 | B6Z5 | C5C6 | Z6A6 | X6X7 | A7Y7 | B7B8 | Y8C7 | Z7Z8 | C8X8 |
By A1X1, A2X2, A3X3, A4X4, A5X5, A6X6, A7X7, A8X8, this 8 coils are sequentially connected in series, end to end
A and X is marked respectively, is formed AX windings, is called U phase main windings；Similarly, by B1Y1 to B8Y8, this 8 coils have been sequentially connected in series
Come, mark B and Y respectively end to end, form BY windings, be called V phase main windings, this 8 coils are sequentially connected in series by C1Z1 to C8Z8
Get up, mark C and Z respectively end to end, form CZ windings, be called W phase main windings.
This three-phase bilayer main winding pitch is Y=1, is fractional-slot concentratred winding, and technique is simple, each coil
Directly rotating around on each tooth, end is short, and draws its fundamental wave winding coefficient Kdp1=0.933, fundamental wave winding by distribution phase
Coefficient is higher, while harmonic content is smaller.
Other set three-phase symmetric winding is assists winding, and assists winding only has 12 coils, and each coil is mutually every one
Tooth, but each coil is also directly to be wound on a tooth, therefore an only conductor in each groove, so in 24 groove coils
Conductor phase distribution such as following table：
By 4 coils in table：a1x1, a2x2, a3x3, a4x4Be together in series, mark ax respectively end to end, referred to as u phases aid in around
Group；By b1y1, b2y2, b3y3, b4y4It is together in series, marks by, referred to as v phases assists winding respectively end to end；By c1z1, c2z2, c3z3,
c4z4It is together in series, marks cz, referred to as w phases assists winding respectively end to end；Thus phase is arranged such that the winding coefficient of assists winding
Kdp1=0, namely magnetic field of permanent magnet cutting assists winding when, in each phase assists winding induced potential and be zero, therefore aid in around
Group only plays hindrance function.
This three-phase single-layer auxiliary winding coil pitch is also y=1, and fractional-slot concentratred winding, therefore this permanent magnetism
This two sets of three-phase windings arranged on generator unit stator are referred to as double fractional-slot concentratred windings.Stator winding is according to Fig. 1 connections, i.e., three
After each phase winding of phase assists winding each phase winding corresponding with three-phase main winding is in series, it is defeated to be connected into star phase three-wire three
Go out, as shown in figure 1, AX connects with ax, BY is connected with by, and x, y, z ends are linked together, are not brought up after being connected with cz by CZ；Will
A, B, C-terminal are drawn, and mark U respectively, and V, W form the AC power of three-phase U, V, W three-wire output.
Claims (1)
1. a kind of double fractional-slot concentratred winding resistance to shorting magnetoes, generator amature is permanent magnetic field, has 20 magnetic poles, hair
Motor stator has 24 stator slots, it is characterised in that：Lay the fractional-slot concentratred winding of two sets of three-phase symmetricals, coil Jie Ju Zhuo
For Y=1；Three-phase main winding is AX, BY, CZ, is the Double Layer Winding that pitch is 1, three-phase assists winding is ax, by, cz, is pitch
For 1 Single-layer Windings, after each corresponding series connection of two sets of windings, x, y, z are linked together, and are not brought up, and exit A, B, C are marked respectively
It is designated as U, V, W three-phases, phase three-wire three output alternating current；
The main winding arranged in 24 grooves of stator is Double Layer Winding, coil pitch 1, each coil-conductor in 24 grooves phase according to
It is secondary to be：A8A1, Z1B1, Y1Y2, B2Z1, C1C2, Z2A2, X2X3, A3Y3, B3B4, Y4C3, Z3Z4, C4X4, A4A5, X5B5,
Y5Y6,B6Z5,C5C6,Z6A6,X6X7,A7Y7,B7B8,Y8C7,Z7Z8,C8X8；
The U phases are AX windings, and AX is gone here and there successively by A1X1, A2X2, A3X3, A4X4, A5X5, A6X6, A7X7, eight coils of A8X8
Connection composition；
The V phases are BY windings, are made up of eight windings in series of B1Y1 to B8Y8, and W phases are CZ phases, by C1Z1 to C8Z8 eight around
Group is in series；
The assists winding arranged in 24 grooves of stator is Single-layer Windings, coil pitch 1, each coil-conductor in 24 grooves phase according to
It is secondary to be：a1, x1, b1, y1, c1, z1；a2, x2, b2, y2, c2, z2；a3, x3, b3, y3, c3, z3；a4, x4, b4, y4, c4, z4；
U phases are ax windings, and ax is by a1x1, a2x2, a3x3, a4x4Four coils are sequentially connected in series and formed；
V phases are by windings, and by is by b1y1To b4y4Four coils are sequentially connected in series, and w phases are cz windings, and cz is by c1z1To c4z4Four
Individual coil is sequentially connected in series；
All coils are all directly around on the stator teeth, and wherein assists winding is a kind of real impedance winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803634.0A CN104506006B (en) | 2014-12-23 | 2014-12-23 | A kind of double fractional-slot concentratred winding resistance to shorting magnetoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803634.0A CN104506006B (en) | 2014-12-23 | 2014-12-23 | A kind of double fractional-slot concentratred winding resistance to shorting magnetoes |
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| Publication Number | Publication Date |
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| CN104506006A CN104506006A (en) | 2015-04-08 |
| CN104506006B true CN104506006B (en) | 2018-02-23 |
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| CN201410803634.0A Active CN104506006B (en) | 2014-12-23 | 2014-12-23 | A kind of double fractional-slot concentratred winding resistance to shorting magnetoes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109286258B (en) * | 2018-11-30 | 2021-05-14 | 武汉若可电气有限公司 | Preparation method of wound rotor winding of alternating-current brushless double-fed motor |
| WO2022021449A1 (en) * | 2020-07-31 | 2022-02-03 | 宁德时代新能源科技股份有限公司 | Motor, control method, power system, and electric vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532615Y (en) * | 2002-03-20 | 2003-01-22 | 清华泰豪科技股份有限公司 | Multi-wave mixing-exciting inner-source filter brushless three-phase synchronous generator |
| CN1967984A (en) * | 2006-10-20 | 2007-05-23 | 泰豪科技股份有限公司 | Permanent-magnet intermediate frequency brushless three-phase synchronization motor with double electric inducing voltage regulation function |
| CN101154845A (en) * | 2006-09-25 | 2008-04-02 | 天津得鑫电机有限公司 | Co-armature type generator |
| CN204334268U (en) * | 2014-12-23 | 2015-05-13 | 泰豪科技股份有限公司 | A kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07222416A (en) * | 1994-01-28 | 1995-08-18 | Satake Eng Co Ltd | Brushless three-phase ac generator |
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- 2014-12-23 CN CN201410803634.0A patent/CN104506006B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532615Y (en) * | 2002-03-20 | 2003-01-22 | 清华泰豪科技股份有限公司 | Multi-wave mixing-exciting inner-source filter brushless three-phase synchronous generator |
| CN101154845A (en) * | 2006-09-25 | 2008-04-02 | 天津得鑫电机有限公司 | Co-armature type generator |
| CN1967984A (en) * | 2006-10-20 | 2007-05-23 | 泰豪科技股份有限公司 | Permanent-magnet intermediate frequency brushless three-phase synchronization motor with double electric inducing voltage regulation function |
| CN204334268U (en) * | 2014-12-23 | 2015-05-13 | 泰豪科技股份有限公司 | A kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator |
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| CN104506006A (en) | 2015-04-08 |
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