CN108832739B - Synchronous camera rotor and synchronous camera - Google Patents
Synchronous camera rotor and synchronous camera Download PDFInfo
- Publication number
- CN108832739B CN108832739B CN201811011594.0A CN201811011594A CN108832739B CN 108832739 B CN108832739 B CN 108832739B CN 201811011594 A CN201811011594 A CN 201811011594A CN 108832739 B CN108832739 B CN 108832739B
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- rotor
- iron core
- rotating shaft
- main body
- synchronous camera
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 claims abstract description 22
- 239000011796 hollow space material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The embodiment of the application discloses a synchronous camera rotor, which is characterized by comprising the following components: a plurality of rotor units including an iron core, an exciting winding and a rotating shaft member; the iron core comprises an iron core main body and a plurality of magnetic poles, and the magnetic poles are symmetrically arranged on the side wall of the iron core main body; the plurality of magnetic poles are wound with exciting windings; the two axial ends of the iron core main body are respectively provided with a rotating shaft piece; the plurality of rotor units are connected by a coupling member. The technical scheme provided by the application solves the technical problems that the iron core of the rotor of the large synchronous camera is integrally slender, difficult to manufacture, high in cost, heavy in rotor weight and short in service life of a rotating shaft for supporting the weight of the rotor.
Description
Technical Field
The application relates to the technical field of power equipment, in particular to a synchronous camera rotor and a synchronous camera.
Background
With the continuous increase of the direct current transmission scale, the electric energy quality problem is more prominent, and the demand of the power grid system for reactive power and the day-to-day increase. The synchronous phase regulator is used as a special reactive compensation source, and has the advantages of continuous control, flexible regulation, high precision, no-difference regulation and the like of the output reactive power.
The synchronous motor is a synchronous motor without mechanical load under special working conditions. Under the condition of no compensation, the rotor exciting winding current is rated no-load exciting current, and the machine end voltage is the same as the power grid voltage. And the rotor has no mechanical load, so that almost no current exists in the armature winding of the stator at the moment, and the phase regulator does not generate reactive power. When a great deal of reactive power demand occurs in the power grid, the exciting winding actively reduces or increases exciting current, so that the machine end voltage is lower than or higher than the power grid voltage, and capacitive or inductive reactive current occurs in the armature winding to balance the difference value between the stator machine end voltage and the power grid voltage. Thus, the synchronous regulator injects a capacitive or inductive reactive current, also known as reactive power, into the grid.
Large synchronous cameras, such as MW-class synchronous cameras, which typically have a high rotational speed during operation, have rotors that are generally of an elongated configuration, i.e., long in length and small in circumference, in order to reduce centrifugal forces, and the iron cores of such rotors are integrally elongated, difficult and costly to manufacture, and the weight of the rotors is high, resulting in a short shaft life supporting the weight thereof.
Disclosure of Invention
The embodiment of the application provides a synchronous camera rotor, which solves the technical problems that the iron core of a large synchronous camera rotor is integrally slender, difficult to manufacture, high in cost, heavy in rotor weight and short in service life of a rotating shaft for supporting the weight of the rotor. The embodiment of the application also provides a synchronous camera.
In view of this, a first aspect of the present application provides a synchronous camera rotor comprising: a plurality of rotor units including an iron core, an exciting winding, and a rotating shaft member;
the iron core comprises an iron core main body and a plurality of magnetic poles, and the magnetic poles are symmetrically arranged on the side wall of the iron core main body; the excitation winding is wound on the magnetic poles; the rotating shaft pieces are respectively arranged at the two axial ends of the iron core main body;
A plurality of the rotor units are connected by a coupling member.
Preferably, the rotor unit further comprises a support flange, the support flange is sleeved on the rotating shaft piece, and a bearing is arranged between the support flange and the rotating shaft piece.
Preferably, a hollow shaft structure is arranged on the axis of the rotor unit.
Preferably, the shaft member is provided with a key groove, and the coupling member specifically includes a key and a coupling.
Preferably, the coupling is a rigid coupling.
Preferably, the magnetic pole is in clamping fit with the iron core main body.
Preferably, the field winding is a superconducting material.
A second aspect of the present application provides a synchronous camera comprising any one of the synchronous camera rotors provided in the first aspect above.
From the above technical solutions, the embodiment of the present application has the following advantages:
In an embodiment of the application, a synchronous camera rotor is provided, the rotor comprises a plurality of rotor units, and each rotor unit comprises an iron core, an excitation winding and a rotating shaft piece; the iron core comprises an iron core main body and a plurality of magnetic poles, the magnetic poles are symmetrically arranged on the side wall of the iron core main body, the exciting winding is wound on the magnetic poles, the two axial ends of the iron core main body are respectively provided with a rotating shaft piece, and the rotor units are connected through a coupling component.
The technical scheme of the application is equivalent to replacing the original slender rotor by connecting a plurality of sections of shorter rotor units, and connecting a plurality of rotor units to form the whole slender rotor, so that on the basis of meeting the requirement of centrifugal force, the manufacturing of the iron core of the rotor unit is simpler than that of the slender integral iron core of the original rotor, thereby greatly reducing the manufacturing cost of the whole rotor, and the rotor units are connected by the coupling parts, namely replacing the original long rotating shaft by connecting a plurality of sections of shorter rotating shaft parts, and the weight of the rotor is dispersed to a plurality of short rotating shafts, so that the stress condition is improved, and the service life of the whole rotating shaft is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a synchronous camera rotor according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the synchronous camera rotor shown in FIG. 1;
fig. 3 is a schematic view of a rotor unit of the synchronous camera rotor shown in fig. 1.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a rotor unit of a synchronous camera rotor according to an embodiment of the present application, fig. 2 is a schematic structural diagram of a synchronous camera rotor according to an embodiment of the present application, and fig. 3 is a cross-sectional view of the synchronous camera rotor shown in fig. 2.
The exciting part of the synchronous rectifier is mainly arranged on the exciting winding 13 and the iron core of the rotor, the rotor unit provided by the embodiment of the application can be understood as a shortened rotor, which is also provided with the iron core and the exciting winding 13,
The iron core generally includes an iron core main body 11 and a plurality of magnetic poles 12, where the iron core main body 11 may have a polygonal structure, and specifically, the number of the magnetic poles 12 may be different according to different requirements, for example, when the number of the magnetic poles 12 is four, the iron core main body 11 may have a regular quadrangle, and at this time, the magnetic poles 12 may be symmetrically disposed on four sides of the iron core main body 11, and when the number of the magnetic poles 12 is six, the iron core main body 11 may have a regular hexagon, and six magnetic poles 12 may be symmetrically disposed on six sides of the iron core main body 11.
The core body 11 and the plurality of magnetic poles 12 may be integrally formed, or may be divided into two parts, and the magnetic poles 12 and the core body 11 may be connected by snap-fit. The groove body can be arranged on one of the groove bodies, the other groove body is provided with the protruding structure matched with the groove body, when the groove body is connected, the protruding structure is clamped into the matched groove body to form clamping fit, and when the groove body is specifically realized, the groove body can be arranged into a dovetail groove or a T-shaped groove, so that a better position fixing effect can be formed after the groove body is clamped.
Specifically, the magnetic pole 12 and the iron core main body 11 of the rotor can be laminated by adopting silicon steel sheets, and can also be formed by pressing by adopting a screw, and the silicon steel sheets can also be replaced by other materials with good magnetic conductivity, such as iron-cobalt alloy and the like.
The magnetic pole 12 generally comprises a pole shoe and a pole cap, and the exciting winding 13 can be specifically wound on the pole shoe of the magnetic pole 12, and the pole cap serves as a circumferential limit structure of the exciting winding 13 to play a role in guiding magnetic field divergence.
The two axial ends of the iron core main body 11 can be provided with the rotating shaft members 14, namely, one rotating shaft member 14 is respectively arranged in two directions of the axis of one rotor unit, the rotating shaft member 14 and the iron core main body 11 can be directly connected into a whole through screws, and clamping grooves can be also arranged for connection, so that the specific connection modes are numerous, and the rotating shaft members 14 can be fixed on the axis of the iron core main body 11.
The shaft element 14 is understood to be a small section of a shaft which is arranged at both ends of the rotor unit so as to be connectable with other rotor units, in particular with the rotor units being connectable via coupling parts.
The rotor of the synchronous camera is equivalent to replacing the original slender rotor with a plurality of sections of shorter rotor units, a plurality of rotor units are connected to form the whole slender rotor, the manufacturing of the iron core of the rotor unit is simpler than that of the original slender rotor on the basis of meeting the centrifugal force requirement, the manufacturing cost of the whole rotor is greatly reduced, the rotor units are connected through the coupling parts, the original long rotating shaft is equivalent to replacing the original long rotating shaft by a plurality of sections of shorter rotating shaft parts 14, the weight of the rotor is dispersed to a plurality of short rotating shafts, the stress condition is improved, and the whole service life of the rotating shaft is prolonged.
In order to make the whole of the rotor formed by connecting a plurality of rotor units more ideal in structure stress, the support flange 21 can be sleeved on the rotating shaft piece 14 of each rotor unit, and the bearing 22 can be arranged between the support flange 21 and the rotating shaft piece 14, so that the support flange 21 can support the rotor without influencing the rotation of the rotor, the stress condition of the rotating shaft piece 14 is improved, and the whole rotor has stronger rigidity in the axial direction.
Specifically, a cylindrical step structure may be disposed on two axial shaft members 14 of the core main body 11, so that the bearing 22 may be sleeved on the shaft member 14, and attached to a cylindrical side surface of the cylindrical step structure on the shaft member 14, and the support flange 21 may be further sleeved on the bearing 22, so as to provide support for the shaft member 14.
The exciting winding 13 needs exciting power supply to supply electric energy, when specific wiring is conducted, since the exciting winding 13 rotates along with the rotating shaft during working, a power inlet wire connected with the exciting power supply is driven to rotate, at the moment, a hollow shaft structure 31 can be arranged on the axis of the rotor unit, then the power wire of the exciting winding 13 can be arranged by utilizing the hollow shaft part of the hollow shaft structure 31, and the influence caused by the rotation of the exciting winding 13 can be avoided to the greatest extent due to the fact that the power wire is arranged at the axis, so that wiring is more reasonable.
It should be noted that, the hollow shaft structure 31 does not mean that the rotor unit has a shaft penetrating the whole rotor unit, but has a hollow space in a shaft shape at the axis of the rotor unit, specifically, the hollow space is formed by a hollow space on the axis of the first rotating shaft member 14 (one side of the core main body 11), the core main body 11, and the second rotating shaft member 14 (the other side of the core main body 11), and the shaft-shaped space on the axis may be provided in each of the first rotating shaft member 14, the core main body 11, and the second rotating shaft member 14, and the three hollow shaft-shaped spaces form a space structure of the hollow shaft structure 31.
The exciting winding 13 may be a conventional good conductor such as copper or aluminum, but in order to have better exciting performance, the exciting winding 13 of the rotor unit in this embodiment may be a superconducting material, and a superconducting winding is wound by the superconducting material to be used as the exciting winding 13.
It should be understood that the connection between the rotor units is actually the connection of the shaft members 14 between the rotor units, and the connection between the shaft members 14 may be achieved by a coupling member, and the coupling member may be a plurality of types, such as a diaphragm coupling 24, an elastic pin coupling 24, etc., while in the synchronous camera rotor provided in this embodiment, a key slot may be provided on the shaft member 14 of each rotor unit, so that a key 23 matching with the key slot is snapped into the key slot to form a flange, and then the shaft members 14 between two rotor units are connected by the coupling 24, and torque between the two rotor units is transmitted by the coupling 24, thereby forming a plurality of rotor units into a whole rotor.
To make the connection between the rotor units more compact, torque transfer more desirable, a just-awake coupling 24 may be used.
The rotor of the synchronous camera in one embodiment provided by the application has the advantages that the original slender integrated rotor is segmented into a plurality of rotor units, so that the manufacturing difficulty of a rotor core is reduced, the manufacturing cost is greatly reduced, the winding of the exciting winding 13 is changed from the original winding on the slender integrated core to the winding on the core of the shorter rotor unit, and therefore, the winding and the assembly of the exciting winding 13 are relatively convenient; the sectional rotor is also greatly reduced in weight, the load condition of the rotating shaft part 14 is greatly improved, and the service life of the rotating shaft is integrally prolonged; meanwhile, the support flange 21 is arranged between the rotor units, and the support flange 21 supports the rotating shaft piece 14, so that the axial rigidity is ensured, and the stress condition between the rotating shaft pieces 14 is improved.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. A synchronous camera rotor, comprising: a plurality of rotor units including an iron core, an exciting winding, and a rotating shaft member;
The iron core comprises an iron core main body and a plurality of magnetic poles, and the magnetic poles are symmetrically arranged on the side wall of the iron core main body; the excitation winding is wound on the plurality of magnetic poles; the rotating shaft pieces are respectively arranged at the two axial ends of the iron core main body;
the rotor units are connected through a coupling part;
The rotor unit further comprises a support flange which is sleeved on the rotating shaft piece, and a bearing is arranged between the support flange and the rotating shaft piece;
A hollow space is arranged on the axis of the rotor unit, and a shaft penetrating through the whole rotor unit is not arranged inside the rotor unit;
The hollow space consists of the iron core main body and hollow structures of the rotating shaft pieces arranged at two ends of the iron core main body;
The hollow space is used for arranging a power wire of the excitation winding.
2. The synchronous camera rotor of claim 1, wherein the shaft member is provided with a key slot, and the coupling member specifically includes a key and a coupling.
3. The synchronous camera rotor of claim 2, wherein the coupling is a rigid coupling.
4. The synchronous camera rotor of claim 1, wherein the poles are snap-fit with the core body.
5. The synchronous rectifier rotor of claim 1 wherein said field winding is a superconducting material.
6. A synchronous camera comprising the synchronous camera rotor according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011594.0A CN108832739B (en) | 2018-08-31 | 2018-08-31 | Synchronous camera rotor and synchronous camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011594.0A CN108832739B (en) | 2018-08-31 | 2018-08-31 | Synchronous camera rotor and synchronous camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108832739A CN108832739A (en) | 2018-11-16 |
| CN108832739B true CN108832739B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811011594.0A Active CN108832739B (en) | 2018-08-31 | 2018-08-31 | Synchronous camera rotor and synchronous camera |
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| Country | Link |
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| CN (1) | CN108832739B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2579826B (en) * | 2018-12-14 | 2023-04-05 | Safran Electrical & Power | Rotor for an electric machine |
| CN112671191A (en) * | 2020-12-16 | 2021-04-16 | 武汉理工大学 | Motor with multi-pole pair windings distributed discretely along large surface of long shaft |
| CN114928068B (en) * | 2022-05-20 | 2024-08-30 | 广东电网有限责任公司东莞供电局 | Point setting and volume fixing method and device for synchronous camera adjustment of receiving-end power grid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001339883A (en) * | 2000-05-30 | 2001-12-07 | Hitachi Ltd | Rotor of salient pole type rotating electric machine |
| CN106936265A (en) * | 2015-12-31 | 2017-07-07 | 丁奕筝 | A kind of wind power generating set |
| CN208608801U (en) * | 2018-08-31 | 2019-03-15 | 广东电网有限责任公司 | A kind of synchronous capacitor rotor and synchronous capacitor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0733576Y2 (en) * | 1992-01-14 | 1995-07-31 | デンヨー株式会社 | Cooling structure of salient pole rotor |
| JP2002176755A (en) * | 2000-12-11 | 2002-06-21 | Nippon Signal Co Ltd:The | Sr motor and switch therewith |
| EP2503671A1 (en) * | 2011-03-22 | 2012-09-26 | Siemens Aktiengesellschaft | Synchronous machine with optimised fixed stator excitation device |
| CN102545435B (en) * | 2012-01-22 | 2014-11-19 | 浙江大学 | Segmented Permanent Magnet Synchronous Motor Rotor Structure |
| CN106505818B (en) * | 2016-11-29 | 2019-01-15 | 大连碧蓝节能环保科技有限公司 | It is segmented phase shift outer rotor permanent magnet motor |
| CN206323273U (en) * | 2017-01-03 | 2017-07-11 | 苏州嘉沁新能源有限公司 | A kind of double-stator permanent magnet synchronous motor |
| US20180233970A1 (en) * | 2017-02-16 | 2018-08-16 | General Electric Company | Hybrid motor and an associated method thereof |
| CN107834798B (en) * | 2017-12-15 | 2023-07-25 | 东方电气(德阳)电动机技术有限责任公司 | Salient pole synchronous motor rotor with integral solid structure |
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2018
- 2018-08-31 CN CN201811011594.0A patent/CN108832739B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001339883A (en) * | 2000-05-30 | 2001-12-07 | Hitachi Ltd | Rotor of salient pole type rotating electric machine |
| CN106936265A (en) * | 2015-12-31 | 2017-07-07 | 丁奕筝 | A kind of wind power generating set |
| CN208608801U (en) * | 2018-08-31 | 2019-03-15 | 广东电网有限责任公司 | A kind of synchronous capacitor rotor and synchronous capacitor |
Also Published As
| Publication number | Publication date |
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| CN108832739A (en) | 2018-11-16 |
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