CN102185403A - Damping winding of generator rotor - Google Patents
Damping winding of generator rotor Download PDFInfo
- Publication number
- CN102185403A CN102185403A CN 201110118277 CN201110118277A CN102185403A CN 102185403 A CN102185403 A CN 102185403A CN 201110118277 CN201110118277 CN 201110118277 CN 201110118277 A CN201110118277 A CN 201110118277A CN 102185403 A CN102185403 A CN 102185403A
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- damping
- rotor
- rotor core
- rings
- generator
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- Synchronous Machinery (AREA)
Abstract
The invention discloses a damping winding of a generator rotor, comprising multiple damping bars which are evenly distributed on a rotor core in a circle and damping rings at two ends of the rotor core, wherein the damping bars pass through axial damping through holes in the circumference of the rotor core; two ends of each damping bar are respectively bent and then abut against end faces at the two ends of the rotor core; rotor clamping rings are fixed at the two ends of the rotor core; the damping rings are respectively embedded into the outer circumferences of the rotor clamping rings; and the two ends of each damping bar are fixedly connected with the damping rings respectively. In the damping winding, the damping rings are embedded in locating ring faces of the rotor clamping rings; the damping winding is compact in structure, and the damping rings are located and fixed reliably and difficult to deform and drop, thus ensuring the stability and the reliability of dynamic adjustment of a generator; and the damping bars and the damping rings are made of alumina-based materials, thus reaching expected damping effects. The damping winding is used to improve performances of the generator and reduce the manufacturing cost of the generator.
Description
Technical field
The present invention relates to a kind of generator amature, the damping winding on especially a kind of generator amature belongs to the generating equipment technical field.
Background technology
Existing generator is made up of rotor assembly, field frame assembly and excitation system, and rotor assembly comprises main shaft, be fixed on rotor core on the main shaft, be fixed on the trim ring of rotor core both sides and be through damping winding in the rotor core.When generator normally moved, because stator field and rotor rotate synchronously, so damping winding was not cut magnetic flux thereby is not had induced current yet.When generator disturbance occurs and makes rotor speed be lower than the rotating speed of stator field, damping winding cutting stator magnetic flux produces induced current, and the moment that induced current produces on damping winding is quickened rotor, and the two speed discrepancy is apart from big more, then this moment is big more, and acceleration effect is strong more; Otherwise when rotor speed was higher than the stator field rotating speed, this moment direction was opposite, and rotor is slowed down; Damping winding has good damping regulating action to the dynamic stability of generator operation.
Existing generator damping winding structure mainly contains two kinds: a kind of is to be formed by connecting with the damping copper ring that is arranged on retaining ring below, rotor core both sides by the damping copper bar that is pressed under the rotor slot wedge or be through in the rotor core damping hole, because the damping copper ring is suspended on the retaining ring below, the centrifugal force that the generator amature high speed rotating produces can make the damping ring distortion and damage damping winding or miscellaneous part, even the fault that damping ring comes off takes place, influence the reliability of generator dynamic adjustments greatly, caused generator complete machine decreased performance.Another kind is formed by connecting with the irony trim ring that is arranged on the rotor core both sides by the damping copper bar that is pressed under the rotor slot wedge or be through in the rotor core damping hole, though this structure has overcome the defective of first kind of structure, but because the resistivity of copper amortisseur bar and irony trim ring differs greatly, can not produce enough effective damping current during amortisseur bar cutting stator magnetic flux, and then reduction damping, the caloric value that the electric current that produces in the while damping winding causes in the irony trim ring is bigger, generator-temperature detection is raise, influenced the useful life of generator.
Summary of the invention
The purpose of this invention is to provide a kind of compact conformation, damping ring not yielding and come off, generator amature damping winding that damping is good.
The present invention is achieved by the following technical programs:
A kind of generator amature damping winding, comprise into the circle-shaped damping ring that is evenly distributed on many amortisseur bars on the rotor core, is positioned at the rotor core two ends, described amortisseur bar passes the axial damping through hole on the rotor core circumference, the amortisseur bar two ends are resisted against on the end face of rotor core two ends after the bending respectively, and the rotor core two ends also are fixed with rotor pressing ring; Described damping ring is inlaid in respectively on the rotor pressing ring outer peripheral face, fixedlys connected with damping ring respectively in termination, amortisseur bar two ends.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid generator amature damping winding, wherein said amortisseur bar and damping ring all adopt aluminum material to make.
The present invention is inlaid in damping ring on the location anchor ring of rotor pressing ring, compact conformation, damping ring positioning and fixing are reliable, overcome the unsettled defective of bringing of damping ring of prior art, during the generator amature high speed rotating, damping ring is yielding and come off, guarantee the stability and the reliability of generator dynamic adjustments, improved the complete machine performance of generator.Amortisseur bar and damping ring all adopt aluminum material to make, because same material resistivity is identical, during amortisseur bar cutting stator magnetic flux, can produce enough effectively damping current, reach the damping of expection.In light weight, the low price of aluminum material has simultaneously reduced the manufacturing cost of generator.
Advantage of the present invention and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the I portion enlarged drawing of Fig. 1.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As Fig. 1, shown in Figure 2, the present invention includes into the circle-shaped many amortisseur bars 1 that are evenly distributed on the rotor core 2, be positioned at the damping ring 3 at rotor core 2 two ends, amortisseur bar 1 passes the axial damping through hole on rotor core 2 circumference, the two ends of amortisseur bar 1 bend to U-shaped respectively, rotor core 2 two ends also are fixed with rotor pressing ring 4, the pin 11 of U-shaped is resisted against the rotor pressing ring I 4 on the rotor core 2 two ends end faces respectively, on the outer rim of rotor pressing ring II 5, damping ring 3 is inlaid in rotor pressing ring I 4 respectively, on the location anchor ring of rotor pressing ring II 5, termination, amortisseur bar 1 two ends is welded on respectively on the damping ring 3, make damping ring 3 respectively with rotor pressing ring I 4,5 one-tenth of rotor pressing ring II are as a whole.Because amortisseur bar 1 and damping ring 3 all adopt aluminum material to make, both resistivity is identical, during amortisseur bar 1 cutting stator magnetic flux, can produce enough effectively damping current, reaches the damping of expection; In light weight, the low price of aluminum material has simultaneously reduced the manufacturing cost of generator.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of requirement of the present invention.
Claims (2)
1. generator amature damping winding, it is characterized in that: comprise into the circle-shaped damping ring (3) that is evenly distributed on many amortisseur bars (1) on the rotor core (2), is positioned at rotor core (2) two ends, described amortisseur bar (1) passes the axial damping through hole on rotor core (2) circumference, amortisseur bar (1) two ends are resisted against on the end face of rotor core (2) two ends after the bending respectively, and rotor core (2) two ends also are fixed with rotor pressing ring (4); It is characterized in that: described damping ring (3) is inlaid in respectively on rotor pressing ring (4) outer peripheral face, fixedlys connected with damping ring (3) respectively in amortisseur bar (1) termination, two ends.
2. generator amature damping winding as claimed in claim 1 is characterized in that: described amortisseur bar (1) and damping ring (3) all adopt aluminum material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110118277 CN102185403A (en) | 2011-05-09 | 2011-05-09 | Damping winding of generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110118277 CN102185403A (en) | 2011-05-09 | 2011-05-09 | Damping winding of generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102185403A true CN102185403A (en) | 2011-09-14 |
Family
ID=44571496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110118277 Pending CN102185403A (en) | 2011-05-09 | 2011-05-09 | Damping winding of generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102185403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355106A (en) * | 2011-09-19 | 2012-02-15 | 山东齐鲁电机制造有限公司 | Novel starting damping structure of synchronous motor |
| CN104505959B (en) * | 2014-12-25 | 2017-12-15 | 成都中车电机有限公司 | A kind of high speed rotates pole core of the salient pole generator with amortisseur bar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146090A (en) * | 1995-06-14 | 1997-03-26 | Abb戴姆勒-奔驰运输(瑞士)有限公司 | Cage rotor for asynchronous motor |
| CN2669466Y (en) * | 2003-11-25 | 2005-01-05 | 上海电气集团上海电机厂 | Salient pole solid synchronous motor pole shoe comprising damping winding |
| CN201075800Y (en) * | 2007-08-29 | 2008-06-18 | 上海电气集团上海电机厂有限公司 | Rotor structure of large-scale single phase synchronous generator |
| CN101213728A (en) * | 2005-06-29 | 2008-07-02 | 西门子公司 | Cage rotor for an asynchronous motor |
| CN201315512Y (en) * | 2008-12-11 | 2009-09-23 | 鞍钢电气有限责任公司 | Device for connecting damping ring of synchronous motor |
| CN201956853U (en) * | 2010-07-12 | 2011-08-31 | 大连三洋压缩机有限公司 | Copper aluminum rotor for ACC |
-
2011
- 2011-05-09 CN CN 201110118277 patent/CN102185403A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146090A (en) * | 1995-06-14 | 1997-03-26 | Abb戴姆勒-奔驰运输(瑞士)有限公司 | Cage rotor for asynchronous motor |
| JPH09103054A (en) * | 1995-06-14 | 1997-04-15 | Abb Daimler Benz Transport Schweiz Ag | Squirrel-cage rotor for asynchronous machine |
| CN2669466Y (en) * | 2003-11-25 | 2005-01-05 | 上海电气集团上海电机厂 | Salient pole solid synchronous motor pole shoe comprising damping winding |
| CN101213728A (en) * | 2005-06-29 | 2008-07-02 | 西门子公司 | Cage rotor for an asynchronous motor |
| CN201075800Y (en) * | 2007-08-29 | 2008-06-18 | 上海电气集团上海电机厂有限公司 | Rotor structure of large-scale single phase synchronous generator |
| CN201315512Y (en) * | 2008-12-11 | 2009-09-23 | 鞍钢电气有限责任公司 | Device for connecting damping ring of synchronous motor |
| CN201956853U (en) * | 2010-07-12 | 2011-08-31 | 大连三洋压缩机有限公司 | Copper aluminum rotor for ACC |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355106A (en) * | 2011-09-19 | 2012-02-15 | 山东齐鲁电机制造有限公司 | Novel starting damping structure of synchronous motor |
| CN104505959B (en) * | 2014-12-25 | 2017-12-15 | 成都中车电机有限公司 | A kind of high speed rotates pole core of the salient pole generator with amortisseur bar |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |