CN104506006A - Short-circuit-resistant permanent magnet generator with double fractional-slot concentrated windings - Google Patents
Short-circuit-resistant permanent magnet generator with double fractional-slot concentrated windings Download PDFInfo
- Publication number
- CN104506006A CN104506006A CN201410803634.0A CN201410803634A CN104506006A CN 104506006 A CN104506006 A CN 104506006A CN 201410803634 A CN201410803634 A CN 201410803634A CN 104506006 A CN104506006 A CN 104506006A
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- winding
- phase
- fractional
- generator
- permanent magnet
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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 short-circuit-resistant permanent magnet generator with double fractional-slot concentrated windings. A stator of the generator is provided with 24 slots and 20 poles; the short-circuit-resistant permanent magnet generator is characterized in that a rotor of the generator is a permanent magnet field; the stator of the generator is provided with the double fractional-slot concentrated windings, namely two three-phase symmetric fractional-slot windings are mounted in the slots of the stator of the generator, and a winding pitch is Y equal to 1; one of the two three-phase symmetric fractional-slot windings is a power generation winding which serves a main winding, and the other three-phase symmetric fractional-slot winding is an auxiliary winding; no mutual inductance exists between the auxiliary winding and the main winding, and electrodynamic potential cannot be generated by induction; the auxiliary winding and the main winding are correspondingly connected in series to externally output alternating current voltage in a three-phase three-wire manner; during stable-state operation, the auxiliary winding can suppress distortion of load current, and the nonlinear load capacity is improved; when the generator has a short circuit, the auxiliary winding suppresses short-circuit current, so that the permanent magnet generator body is high in short-circuit resistance, and the reliability of the generator and the reliability of a power supply system are improved.
Description
Technical field
The present invention relates to a kind of power equipment, what be specifically related to is a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator.
Background technology
Permanent magnet generator is widely used day by day, it is simple that permanent magnet generator has structure, efficiency advantages of higher, but also have some defects, such as voltage-regulation difficulty, during high speed, short circuit current is very large, permanent magnet is easily caused to demagnetize, winding is easy to burn, and wherein voltage-regulation difficult problem has the solution of multiple composite excitation mode, does not relate in this invention scope.And how to improve the anti-short circuit capability of permanent magnet generator own, then an or at present technological difficulties problem in industry.
Summary of the invention
The object of the present invention is to provide a kind of new construction of permanent magnet generator winding, make permanent magnet generator winding itself have powerful anti-short circuit capability.
The present invention is achieved like this, a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator, generator amature is permanent magnetic field, there are 20 magnetic poles, generator unit stator has 24 stator slots, it is characterized in that: the fractional-slot concentratred winding wherein laying two cover three-phase symmetricals, coil Jie Ju Zhuo is Y=1; Three-phase main winding is AX, BY, CZ, to be pitch be 1 two layer winding, three-phase assists winding to be ax, by, cz, to be pitch be 1 single layer winding, after each corresponding series connection of two cover windings, x, y, z are linked together, and do not draw, exit A, B, C are labeled as U respectively, V, W three-phase, phase three-wire three output AC electricity.
Further, the two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator of described one, the main winding arranged in stator 24 grooves is two layer winding, and coil span is 1, and each coil-conductor phase place 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 phase is AX winding, and AX is composed in series successively by A1X1, A2X2, A3X3, A4X4, A5X5, A6X6, A7X7, A8X8 eight coils; In like manner, V phase is BY winding, and be made up of B1Y1 to B8Y8 eight windings in series, W phase is CZ phase, is formed by C1Z1 to C8Z8 eight windings in series.
Further, the two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator of described one, the auxiliary winding arranged in stator 24 grooves is single layer winding, and coil span is 1, and each coil-conductor phase place in 24 grooves is followed successively by: a
1, x
1, b
1, y
1, c
1, z
1; a
2, x
2, b
2, y
2, c
2, z
2; a
3, x
3, b
3, y
3, c
3, z
3; a
4, x
4, b
4, y
4, c
4, z
4; U phase is ax winding, and ax is by a
1x
1, a
2x
2, a
3x
3, a
4x
4four coils are in series successively; In like manner, V phase is by winding, and by is by b
1y
1to b
4y
4four coils are composed in series successively, and w phase is cz winding, and cz is by c
1z
1to c
4z
4four coils are composed in series successively.
Further, the two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator of described one, all coils is all direct around on the stator teeth, and technique is simple, and end is short, without mutual inductance between two cover windings, wherein auxiliary winding is a kind of real impedance winding, and auxiliary winding has the distortion of suppression load current, improves band rectification quasi-nonlinear load capacity, improve the effect of Short Circuit withstand current capacity, thus significantly improve the fault-tolerant ability of permanent magnet generator and the reliability of electric power system.
Technique effect of the present invention is: in a kind of permanent magnet generator stator 24 groove, threephase stator winding is made up of two fractional-slot concentratred winding, wherein main winding AX, BY, CX is the pitch of a set of 20 poles is the two layer winding of 1, wherein auxiliary winding ax, by, cz to be a set of pitch be also 1 single layer winding, all windings are all directly around on the stator teeth, technique is simple, end is short, without mutual inductance between double winding, during wiring work, auxiliary winding serves and suppresses load current distortion effect, improve band rectification quasi-nonlinear load capacity, and there is strong Short Circuit withstand current capacity, significantly improve the fault-tolerant ability of permanent magnet generator and the reliability of electric power system, reach the object of invention.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
The present invention comes work and enforcement like this, a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator, and main structure parameters is number of stator slots 24 groove, number of poles 20 pole, the number of phases 3 phase, rotor permanent magnet body structure; It is characterized in that: only design stator winding structure, stator winding design is become two fractional-slot concentratred winding, also becomes the fractional-slot concentratred winding of two cover three-phase symmetricals by stator winding design, the pitch of each coil of this two cover three-phase symmetric winding is Y=1.
Wherein a set of three-phase symmetric winding is that generating winding is also main winding, main winding three-phase has 24 coils, and each coil is direct around on each tooth of stator respectively, therefore in each groove, is furnished with 2 conductors, two layer winding, in the PHASE DISTRIBUTION of 24 groove coil conductors as following table defined:
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Phase place | 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 place | A4A5 | X5B5 | Y5Y6 | B6Z5 | C5C6 | Z6A6 | X6X7 | A7Y7 | B7B8 | Y8C7 | Z7Z8 | C8X8 |
By A1X1, A2X2, A3X3, A4X4, A5X5, A6X6, A7X7, A8X8, these 8 coils are together in series successively, mark A and X respectively end to end, form AX winding, are called U phase main winding; In like manner, these 8 coils of B1Y1 to B8Y8 are together in series successively, mark B and Y respectively end to end, form BY winding, be called V phase main winding, these 8 coils of C1Z1 to C8Z8 are together in series successively, mark C and Z respectively end to end, form CZ winding, be called W phase main winding.
The double-deck main winding pitch of this three-phase is Y=1, and be fractional-slot concentratred winding, technique is simple, each coil is directly respectively around on each tooth, and end is short, and draws its fundamental wave winding coefficient Kdp1=0.933 by distribution phase, fundamental wave winding coefficient is higher, and harmonic content is less simultaneously.
A set of three-phase symmetric winding is auxiliary winding in addition, auxiliary winding only has 12 coils, and each coil is mutually every a tooth, but each coil is also directly around on a tooth, therefore only have a conductor in each groove, like this in the PHASE DISTRIBUTION of the conductor of 24 groove coils as following table:
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Phase place | a 1 | x 1 | b 1 | y 1 | c 1 | z 1 | a 2 | x 2 | b 2 | y 2 | c 2 | z 2 |
| Groove number | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Phase place | a 3 | x 3 | b 3 | y 3 | c 3 | z 3 | a 4 | x 4 | b 4 | y 4 | c 4 | z 4 |
4 coil: a in showing
1x
1, a
2x
2, a
3x
3, a
4x
4be together in series, mark ax respectively end to end, be called that u phase assists winding; By b
1y
1, b
2y
2, b
3y
3, b
4y
4be together in series, mark by respectively end to end, be called that v phase assists winding; By c
1z
1, c
2z
2, c
3z
3, c
4z
4be together in series, mark cz respectively end to end, be called that w phase assists winding; Phase place is arranged and is made the winding coefficient kdp1=0 of auxiliary winding thus, also namely magnetic field of permanent magnet cutting auxiliary winding time, in each auxiliary winding mutually induced potential and be zero, therefore auxiliary winding only plays hindrance function.
This three-phase single-layer auxiliary winding coil pitch is also y=1, is also fractional-slot concentratred winding, therefore this two covers three-phase windings that this permanent magnet generator stator is arranged is called two fractional-slot concentratred winding.Stator winding, according to Fig. 1 connection, after namely three-phase assists each phase winding of winding each phase winding corresponding with three-phase main winding to be in series, is connected into star phase three-wire three and exports, as shown in Figure 1, AX and ax connects, and BY and by connects, by x after CZ and cz series connection, y, z end is linked together, and does not draw; Drawn by A, B, C end, mark U respectively, V, W form three-phase U, V, W tri-AC power of exporting of line.
Claims (4)
1. a two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator, generator amature is permanent magnetic field, has 20 magnetic poles, and generator unit stator has 24 stator slots, it is characterized in that: the fractional-slot concentratred winding laying two cover three-phase symmetricals, and coil joint is Y=1 apart from Zhuo; Three-phase main winding is AX, BY, CZ, to be pitch be 1 two layer winding, three-phase assists winding to be ax, by, cz, to be pitch be 1 single layer winding, after each corresponding series connection of two cover windings, x, y, z are linked together, and do not draw, exit A, B, C are labeled as U respectively, V, W three-phase, phase three-wire three output AC electricity.
2. a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator as claimed in claim 1, it is characterized in that: the main winding arranged in stator 24 grooves is two layer winding, and coil span is 1, each coil-conductor phase place 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;
Described U phase is AX winding, and AX is composed in series successively by A1X1, A2X2, A3X3, A4X4, A5X5, A6X6, A7X7, A8X8 eight coils;
Described V phase is BY winding, and be made up of B1Y1 to B8Y8 eight windings in series, W phase is CZ phase, is formed by C1Z1 to C8Z8 eight windings in series.
3. a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator as claimed in claim 1, it is characterized in that: the auxiliary winding arranged in stator 24 grooves is single layer winding, and coil span is 1, each coil-conductor phase place in 24 grooves is followed successively by: a
1, x
1, b
1, y
1, c
1, z
1; a
2, x
2, b
2, y
2, c
2, z
2; a
3, x
3, b
3, y
3, c
3, z
3; a
4, x
4, b
4, y
4, c
4, z
4;
Described u phase is ax winding, and ax is by a
1x
1, a
2x
2, a
3x
3, a
4x
4four coils are in series successively;
Described V phase is by winding, and by is by b
1y
1to b
4y
4four coils are composed in series successively, and w phase is cz winding, and cz is by c
1z
1to c
4z
4four coils are composed in series successively.
4. a kind of two fractional-slot concentratred winding Short Circuit withstand permanent magnet generator as claimed in claim 1, is characterized in that: all coils is all direct around on the stator teeth, and wherein auxiliary 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104506006A true CN104506006A (en) | 2015-04-08 |
| CN104506006B CN104506006B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410803634.0A Active CN104506006B (en) | 2014-12-23 | 2014-12-23 | A kind of double fractional-slot concentratred winding resistance to shorting magnetoes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104506006B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286258A (en) * | 2018-11-30 | 2019-01-29 | 武汉若可电气有限公司 | A kind of alternating-current brushless double feedback electric engine wound rotor winding and preparation method thereof |
| 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 (5)
| 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 |
| 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 |
-
2014
- 2014-12-23 CN CN201410803634.0A patent/CN104506006B/en active Active
Patent Citations (5)
| 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 |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286258A (en) * | 2018-11-30 | 2019-01-29 | 武汉若可电气有限公司 | A kind of alternating-current brushless double feedback electric engine wound rotor winding and preparation method thereof |
| 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 |
| CN114402514A (en) * | 2020-07-31 | 2022-04-26 | 宁德时代新能源科技股份有限公司 | Motor, control method, power system and electric automobile |
| US11606058B2 (en) | 2020-07-31 | 2023-03-14 | Contemporary Amperex Technology Co., Limited | Motor, control method, power system, and electric vehicle |
| CN114402514B (en) * | 2020-07-31 | 2023-07-14 | 宁德时代新能源科技股份有限公司 | Motor, control method, power system and electric automobile |
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| Publication number | Publication date |
|---|---|
| CN104506006B (en) | 2018-02-23 |
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