CN203941805U - Transformer, excitation unit, synchronous generator and synchronous motor - Google Patents
Transformer, excitation unit, synchronous generator and synchronous motor Download PDFInfo
- Publication number
- CN203941805U CN203941805U CN201420359529.8U CN201420359529U CN203941805U CN 203941805 U CN203941805 U CN 203941805U CN 201420359529 U CN201420359529 U CN 201420359529U CN 203941805 U CN203941805 U CN 203941805U
- Authority
- CN
- China
- Prior art keywords
- transformer
- rotating shaft
- coil
- cylindrical portion
- part iii
- 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.)
- Withdrawn - After Issue
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 53
- 230000005284 excitation Effects 0.000 title claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003082 abrasive agent Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The utility model discloses a kind of transformer, excitation unit, synchronous generator and synchronous motor.The Part I of the iron core of this transformer is substantially perpendicular to Part III, one end of Part I is connected to Part II, Part II is connected to Part III, has gap, and be provided with perforate on Part III between the other end of Part I and Part III.This perforate of rotating shaft.Tubular support has cylindrical portion and cylinder bottom, and cylindrical portion is enclosed within on Part I, and cylinder bottom is arranged in gap, and rotating shaft is fixedly attached to the center position of cylinder bottom.The first coil is wrapped on iron core.The second coil winding is in the cylindrical portion of tubular support.With providing exciting current according to transformer of the present utility model to the excitation unit of synchronous generator or synchronous motor, do not need to use brush, do not need additionally to drive the iron core of larger quality, and only need to drive lighter coil and support, consume less mechanical energy yet.
Description
Technical field
The utility model relates to transformer, excitation unit, synchronous generator and synchronous motor.
Background technology
In electricity field, under a lot of scenes, need to provide electric energy to the electrical system pivoting.The rotor of for example synchronous generator and synchronous motor need to carry out excitation with electric energy.
Taking synchronous generator as example, describe below.
At present, high-power synchronous generator needs very strong exciting current.
Tradition excitation mode has DC exciter excitation, AC exciter excitation.Two kinds of modes all need, with the way of contact of brush and collector ring, extraneous electric current is introduced to rotor.In addition, the manufacture of these two kinds of exciters is also all subject to the restriction of power.
Now, mostly adopt static excitation mode and rotation brushless excitation mode.But also still there are some problems in these two kinds of modes separately.
In the situation that adopting static excitation mode, excitation transformer is static.Draw alternating current from excitation transformer secondary.This alternating current produces direct current through rectifier bridge rectification.The direct current producing needs just can be incorporated in rotor field coil through collector ring brush.And use the way of contact of brush and collector ring easily to occur variety of issue under large electric current, and care and maintenance is complicated, and workload is large.
In the situation that adopting interchange rotating excitation mode, need the special revolving-armature type alternator of manufacturing as main exciter, and need pilot exciter to provide exciting current for it.In the time carrying out excitation for high-power synchronous generator, need multistage exciter system.The alternating current producing as the rotor coil of the generator of previous stage exciter is offered as the generator of rear one-level exciter as exciting current.(multistage) exciter system is coaxially arranged with the synchronous generator of the final excitation object of conduct, thereby has avoided the way of contact of brush and collector ring.But this multistage exciter system configuration complexity, cost is high, and dynamic property is bad, and demagnetization is slow.
In the open document CN103646757A of Chinese patent application, disclose a kind of transformer with rotary iron core, a coil winding is on this rotary iron core.The rotating shaft of this rotary iron core can be docked with the rotating shaft of the rotor of synchronous generator or synchronous motor, thus synchronous rotary.Like this, the electric energy being wrapped in the coil on secured core can be converted into the electric energy in the coil being wrapped on rotary iron core, thereby can directly offer the epitrochanterian field circuit in synchronous rotary, and does not need to utilize brush.
But the quality of iron core is often larger, driving iron core to rotate often needs to expend more mechanical energy.This is all less desirable for synchronous generator and synchronous motor.Therefore, expectation can alleviate the quality that is attached to epitrochanterian structure.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of transformer, and it can additionally drive the parts of larger quality in the case of not needing, and provides electric energy in the mode that does not need brush to target rotation.
According to an aspect of the present utility model, a kind of transformer is provided, comprise: iron core, there is Part I, Part II and Part III, Part I is substantially perpendicular to Part III, and one end of Part I is connected to Part II, and Part II is connected to Part III, between the other end of Part I and Part III, have gap, and Part III just has perforate to Part I center position; Rotating shaft, through the perforate of Part III; Tubular support, has cylindrical portion and cylinder bottom, and cylindrical portion is enclosed within on Part I, and cylinder bottom is arranged in gap, and rotating shaft is fixedly attached to the center position of cylinder bottom; The first coil, is wrapped on iron core; The second coil, is wrapped in the cylindrical portion of tubular support.
Preferably, the Part II of iron core has bottom and one or more arm extending from bottom, and bottom is connected with Part I, and arm is connected with Part III.
Preferably, the Part II of iron core has bottom and cylindrical wall, and bottom and Part III are in the form of annular discs, and bottom is connected with Part I, and cylindrical wall is connected with Part III, and Part I extends along axis direction from the center position of bottom.
Preferably, also comprise: swing-around trajectory, be arranged between Part I and cylindrical portion, for supporting cylindrical portion, and be convenient to cylindrical portion rotation.
Preferably, be made up of soft magnetic material cylinder bottom.
Preferably, cylindrical portion is made up of non magnetic high-abrasive material.
Preferably, also comprise: axle sleeve, be enclosed within the perforate of Part III, rotating shaft is through axle sleeve.
Preferably, rotating shaft arranged outside has the groove along axis direction, and the lead-in wire of the second coil passes perforate along groove; Or rotating shaft is hollow, the lead-in wire of the second coil is inner through perforate from rotating shaft.
According to another aspect of the present utility model, a kind of excitation unit is provided, comprising: field circuit; And according to transformer of the present utility model, the lead-in wire of the second coil is connected to field circuit, for providing electric current to field circuit, the rotating shaft of transformer is suitable for docking with the rotating shaft of rotor.
According to another aspect of the present utility model, a kind of synchronous generator or synchronous motor are provided, comprising: rotor; According to excitation unit of the present utility model, wherein field circuit is arranged on rotor, and the rotating shaft of transformer is docked with the rotating shaft of rotor, thus synchronous rotary.
With providing exciting current according to transformer of the present utility model to the excitation unit of synchronous generator or synchronous motor, do not need to use brush, do not need additionally to drive the iron core of larger quality, and only need to drive lighter coil and support, consume less mechanical energy yet.
Brief description of the drawings
Fig. 1 is the rough schematic view according to transformer of the present utility model;
Fig. 2 is the cutaway view according to transformer of the present utility model;
Fig. 3 is according to the rough schematic view of the version of transformer of the present utility model;
Fig. 4 uses to carry out the synchronous generator of excitation or the simplification system block diagram of synchronous motor according to transformer of the present utility model.
Embodiment
Describe in detail according to transformer of the present utility model and use excitation unit, synchronous generator, the synchronous motor of this transformer below with reference to accompanying drawing.
Accompanying drawing is schematically, is not to draw in proportion.Between each parts, can there is different size relations.
Masked for fear of core concept of the present utility model, some details are not shown in figure.For example, the device for the iron core of stationary transformer is not shown.It will be understood by those skilled in the art that for the various selections of these details and can't affect essence of the present utility model.
Fig. 1 is the rough schematic view according to transformer of the present utility model.Fig. 2 is the cutaway view that transformer shown in Fig. 1 is cut open along axis 160 place planes.
As illustrated in fig. 1 and 2, there is iron core, the first coil 130 and the second coil 140 according to transformer of the present utility model.
Iron core comprises three parts, Part I 112, Part II 114 and Part III 116.
Part I 112 is substantially perpendicular to Part III 116.
One end of Part I 112 is connected to Part II 114.Part II 114 is connected to Part III 116.
Between the other end of Part I 112 and Part III 116, there is gap 125.
Part III 116 just has perforate to Part I 112 center positions.
Rotating shaft 150 is through the perforate of Part III 116.As shown in Figure 2, tapping can be provided with axle sleeve 180, and rotating shaft 150 is through axle sleeve 180.
Tubular support 120 has cylindrical portion 124 and cylinder bottom 122 (seeing Fig. 2).Cylindrical portion 124 is enclosed within on Part I 112.Cylinder bottom 122 is arranged in gap 125.
Cylinder bottom 122 is the parts in closed magnetic circuit, in order to reduce magnetic resistance, preferably, can be made up of soft magnetic material.Cylinder bottom 122 in Part I 112, Part II 114 and Part III 116, gap 125 and the gap 125 of iron core forms closed magnetic circuit.
Cylindrical portion 124 does not belong to closed magnetic circuit, can be made up of non magnetic high-abrasive material.
Rotating shaft 150 is fixedly attached to the center position of cylinder bottom 122, thereby can drive tubular support 120 to rotate.
The first coil 130 is wrapped on iron core, can be wrapped on Part I 112, also can be wrapped on Part II 114 or Part III 116.Fig. 1 and 2 shows the first coil 130 is wrapped in to the situation on Part III 116.
The second coil 140 is wrapped in the cylindrical portion 124 of tubular support 120.
Between Part I 112 and cylindrical portion 124, swing-around trajectory 170 can be set.Swing-around trajectory 170 is for supporting cylindrical portion 124, and is convenient to cylindrical portion 124 and rotates.
The outside of rotating shaft 150 can be provided with along the groove (not shown) of axis 160 directions.The lead-in wire of the second coil 140 can be along groove through perforate.
Or rotating shaft 150 can be hollow, the lead-in wire of the second coil 140 is inner through perforate from rotating shaft 150.
Like this, electric energy can be offered on the first fixing coil 130, on the second coil 140 of rotation, induce electric energy, offer the object of rotation, the epitrochanterian field circuit of for example synchronous generator or synchronous motor.Also the electric energy of drawing from the rotor of for example generator can be offered to the second coil 140 of synchronous rotary, on the first fixing coil 130, induce electric energy, and outwards provide.Realize like this electrical energy transfer between fixing circuit and the circuit of rotation.
Owing to only needing extra the second coil 140 and the tubular support 120 that supports the second coil 140 of driving to rotate, and do not need to drive comparatively heavy iron core (Part I 112) to rotate, need the mechanical energy of consumption less.
In Fig. 1, illustrated that Part I 112, Part II 114 and the Part III 116 of iron core forms the situation of " mouth " font not sealing, wherein Part II 114 is made up of orthogonal two subdivisions.
But the Part I 112, Part II 114 and the Part III 116 that it will be understood by those skilled in the art that iron core can also otherwise be arranged.
For example, can be arranged as " day " font etc., the Part II 114 of iron core has bottom and one or more arm extending from bottom.Bottom is connected with Part I 112, and arm is connected with Part III 116.The in the situation that of " day " font, be to there are two arms.Can also there be as required three or more arms.The first coil 130 can be wrapped in Part I 112, Part II 114 or Part III 116.
Fig. 3 shows iron core and is set to the situation of " day " font.Wherein the first coil 130 is arranged on Part I 112.
In addition, the Part II 114 of iron core can also be cylindric, has bottom and cylindrical wall.Bottom is in the form of annular discs, and correspondingly Part III 116 is also in the form of annular discs.Cylindrical wall is by bottom and Part III 116.Bottom is connected with Part I 112.Part I 112 extends along axis direction from the center position of bottom, until approach Part III 116, and and Part III 116 between leave gap 125.In this case, when iron core is cut along the plane of crossing axis 160, and while not cutting the first coil 130 and the second coil 140, seen view will be similar with Fig. 3.The first coil 130 can also be arranged on Part I 112.
In addition, be in situation cylindraceous at Part II 114, the first coil 130 also can be arranged on the inner side of cylindrical wall.Just preferably further provide support part, support the first coil 130.
So far, described in detail according to transformer of the present utility model.
The following describes and use the field circuit, synchronous generator or the synchronous motor that carry out excitation operation according to transformer of the present utility model.This excitation unit is for the rotor of synchronous generator or synchronous motor.
Fig. 4 uses to carry out the synchronous generator of excitation or the simplification system block diagram of synchronous motor according to transformer of the present utility model.
Synchronous generator or synchronous motor 20 comprise stator 21 and rotor 22.In addition, also provide according to transformer 10 of the present utility model.
The rotating shaft of rotor 22 and the rotating shaft 150 of transformer 10 can be configured to synchronize rotate.For example, the rotating shaft of rotor 22 coaxially can be connected with the rotating shaft of transformer 10.
In one embodiment, the rotating shaft of the rotating shaft of rotor 22 and transformer 10 can be fixedly connected by shaft coupling (not shown).
The field circuit (not shown) excitation device arranging on transformer 10 and rotor 22.The lead-in wire of the second coil 140 of transformer 10 is connected to field circuit, and provides electric current for field circuit.As mentioned above, the lead-in wire of the second coil 140 can pass along the groove in rotating shaft 150 outsides the perforate of the Part III 116 of the iron core of transformer 10, also can be along the inside of rotating shaft 150 hollows through the perforate of Part III 116, thereby be drawn out to outside transformer, the stepping of going forward side by side enters the inside of synchronous generator and synchronous motor 20.
The rectifying device rectification of this electric current in field circuit, changes direct current into, and offers the excitation winding of synchronous generator or synchronous motor, thus the excitation of realization.
With providing electric current according to transformer of the present utility model to field circuit (excitation unit), do not need to use brush and collector ring, and do not need excitation step by step, system configuration is simple.
A kind of brushless excitation mode according to excitation unit of the present utility model, relatively existing excitation mode, its structural system is simpler, more easily realize, and the little efficiency of loss is high, and electromagnetic noise is low, does not increase the moment of resistance of macro-axis, consumes few mechanical energy.It is convenient, easy to maintenance to control.
So far, be described with reference to the drawings according to the transformer of each embodiment of the present utility model, excitation unit, synchronous generator and synchronous motor.But, it will be understood by those skilled in the art that and can also make various modifications and changes to these embodiment, these modifications and changes are equally within protection range of the present utility model.Protection range of the present utility model is not subject to the restriction of the detail of describing in specification, but is limited by appended claims.
Claims (10)
1. a transformer, is characterized in that, comprising:
Iron core, there is Part I, Part II and Part III, Part I is substantially perpendicular to Part III, one end of Part I is connected to Part II, Part II is connected to Part III, between the other end of Part I and Part III, have gap, and Part III just has perforate to Part I center position;
Rotating shaft, through the perforate of described Part III;
Tubular support, has cylindrical portion and cylinder bottom, and described cylindrical portion is enclosed within on Part I, and described cylinder bottom is arranged in described gap, and described rotating shaft is fixedly attached to the center position of described cylinder bottom;
The first coil, is wrapped on described iron core;
The second coil, is wrapped in the cylindrical portion of described tubular support.
2. according to the transformer of claim 1, it is characterized in that,
The Part II of described iron core has bottom and one or more arm extending from described bottom,
Described bottom is connected with Part I, and described arm is connected with Part III.
3. according to the transformer of claim 1, it is characterized in that,
The Part II of described iron core has bottom and cylindrical wall,
Described bottom and described Part III are in the form of annular discs,
Described bottom is connected with Part I, and described cylindrical wall is connected with Part III,
Described Part I extends along axis direction from the center position of described bottom.
4. according to the transformer of claim 1, it is characterized in that, also comprise:
Swing-around trajectory, is arranged between described Part I and described cylindrical portion, for supporting described cylindrical portion, and is convenient to described cylindrical portion rotation.
5. according to the transformer of claim 1, it is characterized in that,
Be made up of soft magnetic material described cylinder bottom.
6. according to the transformer of claim 1, it is characterized in that,
Described cylindrical portion is made up of non magnetic high-abrasive material.
7. according to the transformer of claim 1, it is characterized in that, also comprise:
Axle sleeve, is enclosed within the perforate of described Part III, and described rotating shaft is through described axle sleeve.
8. according to the transformer of claim 1, it is characterized in that,
Described rotating shaft arranged outside has the groove along axis direction, and the lead-in wire of described the second coil passes described perforate along described groove; Or
Described rotating shaft is hollow, and the lead-in wire of described the second coil is inner through described perforate from described rotating shaft.
9. for an excitation unit for the rotor of synchronous generator or synchronous motor, it is characterized in that, comprising:
Field circuit; And
According to the transformer described in any one in claim 1 to 8, the lead-in wire of described the second coil is connected to described field circuit, for providing electric current to described field circuit,
The rotating shaft of described transformer is suitable for docking with the rotating shaft of described rotor.
10. synchronous generator or a synchronous motor, is characterized in that, comprising:
Rotor;
According to the excitation unit of claim 9, wherein said field circuit is arranged on described rotor,
The rotating shaft of described transformer is docked with the rotating shaft of described rotor, thus synchronous rotary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359529.8U CN203941805U (en) | 2014-06-30 | 2014-06-30 | Transformer, excitation unit, synchronous generator and synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359529.8U CN203941805U (en) | 2014-06-30 | 2014-06-30 | Transformer, excitation unit, synchronous generator and synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941805U true CN203941805U (en) | 2014-11-12 |
Family
ID=51861104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359529.8U Withdrawn - After Issue CN203941805U (en) | 2014-06-30 | 2014-06-30 | Transformer, excitation unit, synchronous generator and synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036935A (en) * | 2014-06-30 | 2014-09-10 | 国家电网公司 | Transformer, excitation device, synchronous generator and synchronous motor |
| WO2015090228A1 (en) * | 2013-12-20 | 2015-06-25 | 谢胜利 | Transformer, synchronous generator and synchronous motor |
-
2014
- 2014-06-30 CN CN201420359529.8U patent/CN203941805U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015090228A1 (en) * | 2013-12-20 | 2015-06-25 | 谢胜利 | Transformer, synchronous generator and synchronous motor |
| CN104036935A (en) * | 2014-06-30 | 2014-09-10 | 国家电网公司 | Transformer, excitation device, synchronous generator and synchronous motor |
| CN104036935B (en) * | 2014-06-30 | 2017-03-01 | 国家电网公司 | Transformator, excitation unit, synchronous generator and synchronous motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101651394B (en) | Mixed excitation magnetoelectric machine adopting harmonic excitation | |
| CN201956848U (en) | Permanent magnet synchronous wind generator with multi-layer windings | |
| CN103199662B (en) | The composite excitation permanent magnet synchronous motor of third harmonic excitation | |
| CN104300758A (en) | H250 sex-pole harmonic excitation generator | |
| CN110729873A (en) | Air gap field adjustable hybrid excitation magnetic lead screw | |
| CN104333197A (en) | Electromechanical integration magnetic field modulation type magnetic gear | |
| CN103066782A (en) | Magnetoelectricity type micro generator | |
| CN101557150A (en) | Permanent magnet synchronous direct-drive wind power generator without iron core | |
| CN104036935A (en) | Transformer, excitation device, synchronous generator and synchronous motor | |
| CN203941805U (en) | Transformer, excitation unit, synchronous generator and synchronous motor | |
| CN103915961A (en) | Novel axial magnetic flux double-salient permanent magnet generator | |
| CN203859652U (en) | Novel axial-magnetic-flux doubly-salient permanent magnet generator | |
| CN107508440B (en) | A kind of axial direction multiple-unit stator electrical excitation bipolarity inductor machine | |
| CN103646757B (en) | Transformer, synchronous generator and synchronous motor | |
| CN100405709C (en) | Coarmature type AC-DC brushless electric generator | |
| KR20120057531A (en) | Generator having inner outer stator structure of non-magnetic rotor | |
| CN204089542U (en) | A kind of H250 sextupole harmonic excited generator | |
| CN203608056U (en) | Excitation device | |
| CN201204528Y (en) | Low speed large-torque moment motor | |
| CN203708055U (en) | DC motor with induction power-generating function | |
| CN102111045A (en) | Multilayer winding permanent magnet synchronous wind generator | |
| CN209389893U (en) | A kind of birotor permanent magnetic synchronous electric motor rotor fixed structure | |
| CN206865327U (en) | A kind of axial magnetic field flux switch permanent magnet motor | |
| CN109245473A (en) | A kind of three-phase motor | |
| CN201234176Y (en) | Motor with magnetic strength of rotor magnetic pole controllable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20171114 |