CN109962538A - A kind of generator - Google Patents
A kind of generator Download PDFInfo
- Publication number
- CN109962538A CN109962538A CN201711420271.2A CN201711420271A CN109962538A CN 109962538 A CN109962538 A CN 109962538A CN 201711420271 A CN201711420271 A CN 201711420271A CN 109962538 A CN109962538 A CN 109962538A
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- China
- Prior art keywords
- stator
- winding
- layer
- slot
- phase windings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 116
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000004080 punching Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000026817 47,XYY syndrome Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides a kind of generator, including stator and rotor, and stator includes: stator core and stator winding, and stator core inner ring is formed with stator slot that is multiple uniformly distributed and being obliquely installed；Stator winding includes the first layer winding being successively threaded through in stator slot, second layer winding, third layer winding and the 4th layer of winding, first layer winding and second layer winding form first set three-phase windings, third layer winding and the 4th layer of winding form second set of three-phase windings, the slot number 30 degree of electrical angles of difference for originating stator slot of first set three-phase windings and second set of three-phase windings.Six phase stator winding are formed by using two sets of three-phase windings, when a phase of generator or the failure of a few phases, generator can continue to run in the case where load shedding.Meanwhile by the way that stator slot is obliquely installed, the influence of reduced harmonic electromotive force, to reduce the irregularity of wave form of magneto alternator idle voltage output.
Description
Technical field
The present invention relates to technical field of generators, especially a kind of generator.
Background technique
When three-phase permanent synchronous generator phase-deficient operation, the rotating excitation field of stator is seriously uneven, and stator can generate negative phase-sequence
Electric current causes torque pulsating and stator to vibrate, influences the power output of generator.There are also a series of high in addition to fundamental wave for stator rotating excitation field
Subharmonic causes the overvoltage phenomenon of stator winding.It is serious or even will cause accident.So the phase-deficient operation with nominal load
Generator need to immediately stop, if protection acts not in time, generator will be burned out.
Summary of the invention
In view of the above-mentioned problems in the prior art, the present invention provides a kind of generator, by using six Xiang Dingzi
Winding so that air gap flux linkage aberration rate is smaller when a phase of motor or a few phases break down, can in the case where load shedding after
Reforwarding row, power supply reliability with higher.
To solve the above problems, a kind of generator provided by the invention, including stator and rotor, the stator include:
Stator core, inner ring are formed with stator slot that is multiple uniformly distributed and being obliquely installed；
Stator winding comprising be successively threaded through first layer winding in the stator slot, second layer winding, third layer around
Group and the 4th layer of winding, the first layer winding and the second layer winding form first set three-phase windings, the third layer around
Group and the 4th layer of winding second set of three-phase windings of formation, the first set three-phase windings and second set of three-phase windings
The slot number for originating stator slot differs 30 degree of electrical angles.
Preferably, the stator core includes multiple stator punchings for laminating setting, on each stator punching
Equipped with fluting, each stator slot is overrided to form by multiple flutings.
Preferably, slot pitch of the stator slot along one stator slot of peripheral, oblique of the stator core, described
Slot pitch is the ratio of the perimeter of the stator core outer circle and the quantity of the stator slot.
Preferably, the outer circle of the stator core and both ends are respectively provided with the cramp of the fixed stator punching,
The both ends of the stator core are additionally provided with stator pressing ring.
Preferably, the first set three-phase windings and second set of three-phase windings are all made of Y connection, described first
The neutral point of the neutral point and second set of three-phase windings that cover three-phase windings is not connected to.
Preferably, being equipped with the first insulating layer between the stator core and the stator winding.
Preferably, between the first layer winding and the second layer winding, the second layer winding and the third
Second insulating layer is equipped between the third layer winding and the 4th layer of winding between layer winding.
It is carved preferably, being equipped at the notch of the stator slot for fixing the stator slot of the stator winding.
Preferably, the rotor includes:
Rotor iron yoke is circumferentially formed with evenly arranged multiple dovetail grooves；
Permanent magnet, tail portion are arranged in dovetail shaped, and one-to-one setting is in the dovetail groove.
Preferably, the middle part of the permanent magnet is equipped with through-hole, with solid in axial direction by fixing piece and the rotor iron yoke
Fixed connection.
Compared with prior art, the beneficial effects of the present invention are: form six Xiang Dingzi by using two sets of three-phase windings
Winding, when a phase of generator or a few phases break down, air gap flux linkage aberration rate is smaller, and generator can be the load shedding the case where
Under continue to run, improve power supply reliability.With increasing for the number of phases, the minimum number of torque pulsation increases, amplitude reduces, thus
Mechanical resonance and the running noises of generator can be reduced.Meanwhile by the way that stator slot is obliquely installed, the shadow of reduced harmonic electromotive force
It rings, to reduce the irregularity of wave form of magneto alternator idle voltage output.In addition, permanent magnet on rotor radial and
It is fixed in axial both direction, even if permanent magnet can also realize solid and reliable fixation so that generator operates at high speed.
Detailed description of the invention
Fig. 1 is the stator core axial direction half-section diagram of the generator of the embodiment of the present invention；
Fig. 2 is the stator winding diagrammatic cross-section of the generator of the embodiment of the present invention；
Fig. 3 is the scheme of installation of the permanent magnet of the generator of the embodiment of the present invention；
Fig. 4 is the stator core schematic perspective view of the generator of the embodiment of the present invention.
Appended drawing reference:
1, stator core；2, stator slot；3, stator winding；4, first layer winding；
5, second layer winding；6, third layer winding；7, the 4th layer of winding；8, stator punching；
9, cramp；10, stator pressing ring；11, the first insulating layer；12, second insulating layer；
13, stator slot is carved；14, rotor iron yoke；15, permanent magnet；16, fixing piece.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
The embodiment of the invention provides a kind of generators, including stator and rotor, as shown in Figure 1, Figure 2 and shown in Fig. 4, stator packet
Include: stator core 1 and stator winding 3,1 inner ring of stator core are formed with stator slot 2 that is multiple uniformly distributed and being obliquely installed；Stator around
Group 3 includes first layer winding 4, second layer winding 5, third layer winding 6 and the 4th layer of winding 7 being successively threaded through in stator slot 2,
First layer winding 4 and second layer winding 5 form first set three-phase windings, and third layer winding 6 and the 4th layer of winding 7 form second set
The slot number of the starting stator slot 2 of three-phase windings, first set three-phase windings and second set of three-phase windings differs 30 degree of electrical angles.Pass through
Six phase stator winding are formed using two sets of three-phase windings, when a phase of generator or the failure of a few phases, air gap flux linkage distortion
Rate is smaller, and generator can continue to run in the case where load shedding, improves power supply reliability.With increasing for the number of phases, torque arteries and veins
Dynamic minimum number increases, amplitude reduces, so as to reduce mechanical resonance and the running noises of generator.Meanwhile by that will determine
Pilot trench 2 is obliquely installed, the influence of reduced harmonic electromotive force, so that the waveform for reducing magneto alternator idle voltage output is abnormal
Variability.
In one embodiment, stator core 1 includes multiple stator punchings 8 for laminating setting, specifically referring to Figure 1, often
It is equipped with fluting on a stator punching 8, each stator slot 2 is overrided to form by multiple flutings, ultimately forms determining of being obliquely installed
Pilot trench 2 dedicated tooling can be used to carry out operation during production.
Wherein, specifically referring to Figure 1 and Fig. 4, slot of the stator slot 2 along one stator slot 2 of peripheral, oblique of stator core 1
Away from slot pitch is the ratio of the perimeter of 1 outer circle of stator core and the quantity of stator slot 2.Specifically, the slot number of stator slot 2 is Q, determines
The length of sub- iron core 1 is L, the outer diameter of stator core 1 is Φ D, and the slot pitch of stator core 1 is L1, and stator slot 2 is along stator core 1
One stator slot 2 of peripheral, oblique slot pitch, slot pitch L1 be π * D/Q.
In order to guarantee the fastness of stator punching 8 stablized and laminated, specifically referring to Figure 1, the outer circle of stator core 1 and
Both ends are respectively provided with the cramp 9 of fixed stator punching 8, and the both ends of stator core 1 are additionally provided with fixed for further fixing
The stator pressing ring 10 of sub- punching 8, that is, the both ends of stator core 1 are compressed by stator pressing ring 10, and then stator core 1 passes through again
Cramp 9 is fastened.
In the present embodiment, first set three-phase windings and second set of three-phase windings are all made of Y connection, first set three-phase around
The neutral point of group and the neutral point of second set of three-phase windings are not connected to.Specifically, first layer winding 4 and the formation of second layer winding 5
First set three-phase windings U1, V1, W1, third layer winding 6 and the 4th layer of winding 7 form second set of three-phase windings U2, V2, W2, the
A set of three-phase windings and second set of three-phase windings constitute two sets of windings being respectively symmetrically distributed, first set three-phase windings and second set
The slot number of the starting stator slot 2 of three-phase windings differs 30 degree of electrical angles, i.e. alternate position spike is 30 degree of electrical angles, is all made of Y connection,
That is, constituting six phase windings that double Y move 30 degree of electrical angles, neutral point is not connected to.Then U1, V1, W1, U2, V2, W2 constitute six phases around
Group, winding configuration are double-layer overlapped around lead end and non-lead end are located at winding the same end.
In order to guarantee to insulate, Fig. 2 is specifically referred to, the first insulating layer is equipped between stator core 1 and stator winding 3
11。
In addition, between first layer winding 4 and second layer winding 5, between second layer winding 5 and third layer winding 6, third layer
It is equipped with second insulating layer 12 between winding 6 and the 4th layer of winding 7, so that can insulate between each layer winding, is specifically asked
Referring to fig. 2.
In order to guarantee the stability and fastness of winding, Fig. 2 is specifically referred to, is equipped at the notch of stator slot 2 for solid
The stator slot for determining stator winding 3 carves 13.
In the present embodiment, rotor includes rotor iron yoke 14 and permanent magnet 15, as shown in figure 3, rotor iron yoke 14 is along its week
To being formed with evenly arranged multiple dovetail grooves；The tail portion of permanent magnet 15 is arranged in dovetail shaped, and is arranged by it in dovetail shaped
Tail portion be arranged in dovetail groove correspondingly so that it is fixed radially, and two adjacent permanent magnets 15
Polarity is opposite.
And fixed to realize permanent magnet 15 with rotor iron yoke 14 in the axial direction, it is equipped at the middle part of permanent magnet 15 logical
Hole specifically refers to Fig. 3, wherein fixing piece 16 can be to connect with rotor iron yoke 14 in axial restraint by fixing piece 16
Soket head cap screw.
Generator provided in an embodiment of the present invention can be suitable for peculiar to vessel.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of generator, including stator and rotor, which is characterized in that the stator includes:
Stator core, inner ring are formed with stator slot that is multiple uniformly distributed and being obliquely installed；
Stator winding comprising be successively threaded through first layer winding in the stator slot, second layer winding, third layer winding and
4th layer of winding, the first layer winding and the second layer winding form first set three-phase windings, the third layer winding and
The 4th layer of winding forms second set of three-phase windings, the starting of the first set three-phase windings and second set of three-phase windings
The slot number of stator slot differs 30 degree of electrical angles.
2. a kind of generator according to claim 1, which is characterized in that the stator core includes multiple laminating setting
Stator punching is equipped with fluting on each stator punching, and multiple stator punchings are sequentially stacked, corresponding described to open
Slot forms the stator slot.
3. a kind of generator according to claim 2, which is characterized in that circumferential direction of the stator slot along the stator core
The slot pitch of a stator slot is tilted, the slot pitch is the perimeter of the stator core outer circle and the quantity of the stator slot
Ratio.
4. a kind of generator according to claim 2, which is characterized in that the outer circle of the stator core and both ends are set respectively
There is the cramp for fixing the stator punching, the both ends of the stator core are additionally provided with stator pressing ring.
5. a kind of generator according to claim 1, which is characterized in that first set three-phase windings and second set described
Three-phase windings are all made of Y connection, the neutral point of the neutral point of the first set three-phase windings and second set of three-phase windings
It is not connected to.
6. a kind of generator according to claim 1, which is characterized in that between the stator core and the stator winding
Equipped with the first insulating layer.
7. a kind of generator according to claim 1, which is characterized in that the first layer winding and the second layer winding
Between, between the second layer winding and the third layer winding and between the third layer winding and the 4th layer of winding
It is equipped with second insulating layer.
8. a kind of generator according to claim 1, which is characterized in that be equipped at the notch of the stator slot for fixing
The stator slot of the stator winding is carved.
9. a kind of generator according to claim 1, which is characterized in that the rotor includes:
Rotor iron yoke is circumferentially formed with evenly arranged multiple dovetail grooves；
Permanent magnet, tail portion are arranged in dovetail shaped, and one-to-one setting is in the dovetail groove.
10. a kind of generator according to claim 9, which is characterized in that the middle part of the permanent magnet is equipped with through-hole, with logical
It crosses fixing piece and is connect with the rotor iron yoke in axial restraint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420271.2A CN109962538A (en) | 2017-12-25 | 2017-12-25 | A kind of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420271.2A CN109962538A (en) | 2017-12-25 | 2017-12-25 | A kind of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109962538A true CN109962538A (en) | 2019-07-02 |
Family
ID=67020893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711420271.2A Pending CN109962538A (en) | 2017-12-25 | 2017-12-25 | A kind of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109962538A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243742Y (en) * | 1994-11-22 | 1996-12-25 | 湖北省云梦县电机厂 | Series speed regulating system with six phase and dual 30 deg. shift and dual bridge conversion |
| CN102857002A (en) * | 2012-10-09 | 2013-01-02 | 天津市松正电动汽车技术股份有限公司 | Double-winding motor and six-phase motor for magnetic circuit decoupling |
| CN205123534U (en) * | 2015-10-19 | 2016-03-30 | 上海金鹏科技有限公司 | Permanent magnetic synchronous generator |
| CN105762952A (en) * | 2016-04-11 | 2016-07-13 | 天津大学 | Low rotational inertia permanent magnet synchronous servo motor adopting four layer and short pitch distributed windings |
| CN105932803A (en) * | 2016-06-08 | 2016-09-07 | 山东理工大学 | Double-winding six-phase drive motor with tangential embedded permanent magnet rotor |
| WO2017101637A1 (en) * | 2015-12-14 | 2017-06-22 | 新疆金风科技股份有限公司 | Motor stator, permanent magnet generator |
| CN107017720A (en) * | 2017-05-19 | 2017-08-04 | 苏州汇川联合动力系统有限公司 | Double winding stator and motor |
| CN207766040U (en) * | 2017-12-25 | 2018-08-24 | 安徽明腾永磁机电设备有限公司 | A kind of generator |
-
2017
- 2017-12-25 CN CN201711420271.2A patent/CN109962538A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243742Y (en) * | 1994-11-22 | 1996-12-25 | 湖北省云梦县电机厂 | Series speed regulating system with six phase and dual 30 deg. shift and dual bridge conversion |
| CN102857002A (en) * | 2012-10-09 | 2013-01-02 | 天津市松正电动汽车技术股份有限公司 | Double-winding motor and six-phase motor for magnetic circuit decoupling |
| CN205123534U (en) * | 2015-10-19 | 2016-03-30 | 上海金鹏科技有限公司 | Permanent magnetic synchronous generator |
| WO2017101637A1 (en) * | 2015-12-14 | 2017-06-22 | 新疆金风科技股份有限公司 | Motor stator, permanent magnet generator |
| CN105762952A (en) * | 2016-04-11 | 2016-07-13 | 天津大学 | Low rotational inertia permanent magnet synchronous servo motor adopting four layer and short pitch distributed windings |
| CN105932803A (en) * | 2016-06-08 | 2016-09-07 | 山东理工大学 | Double-winding six-phase drive motor with tangential embedded permanent magnet rotor |
| CN107017720A (en) * | 2017-05-19 | 2017-08-04 | 苏州汇川联合动力系统有限公司 | Double winding stator and motor |
| CN207766040U (en) * | 2017-12-25 | 2018-08-24 | 安徽明腾永磁机电设备有限公司 | A kind of generator |
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