CN201075800Y - Rotor structure of large-scale single phase synchronous generator - Google Patents
Rotor structure of large-scale single phase synchronous generator Download PDFInfo
- Publication number
- CN201075800Y CN201075800Y CNU200720074212XU CN200720074212U CN201075800Y CN 201075800 Y CN201075800 Y CN 201075800Y CN U200720074212X U CNU200720074212X U CN U200720074212XU CN 200720074212 U CN200720074212 U CN 200720074212U CN 201075800 Y CN201075800 Y CN 201075800Y
- Authority
- CN
- China
- Prior art keywords
- pole
- damping
- single phase
- synchronous generator
- rotor structure
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a rotor structure of a large grade single phase synchronous generator, which comprises a plurality of magnet poles which comprise pole bodies and pole terminals and are used for magnet cores, magnetic yokes which are connected with the magnet poles, and magnet pole windings which are stheathed with the pole bodies of the magnet poles. Caulking grooves are all axially arranged on the lateral surface of each pole terminal of the magnet poles. A plurality of damping rods embedded and arranged in the caulking grooves are included. Each damping rod is connected with the part between the two terminals of the rotor close to the magnet poles through a plurality of damping rings and connecting sheets in an electric conduction way to form a cylindrical damper coil. The resistance of the damper coil is from 8 percent to 12 percent of the damper coil reactance. The rotor structure of the large grade single phase synchronous generator in the utility model ensures that the electric current of the damping winding takes the dust of the electromotive force of the damping winding about 90 degrees because the resistance of the damping winding is far less than the reactance of the damping winding in the design; and the phase of the damping magnetomotive force is nearly reverse to the phase of the negative sequence magnetomotive force to enhance the damping effect. In addition, the security and the reliability of the motor running are ensured because the damping rings are connected in a connecting sheet way and shroud rings are added.
Description
Technical field
The utility model relates to a kind of rotor structure that is used for the large-scale single phase synchronous generator of electrolytic tinplate.
Background technology
The large-scale single phase synchronous generator that is used for electrolytic tinplate by an Asynchronous Motor Driving, is controlled the armature supply of generator by the exciting current of control brushless exciter, thereby controls the heating-up temperature of sheet tin volume.Because firing equipment is two contacts only, so generator is single-phase.This rating of machine and pattern comprise capacity motor: 2200kVA; Number of poles: 8P; Voltage: 3300V; Rotating speed: 750r/min; Frequency: 50Hz; Power factor: 0.9 (hysteresis); Insulation: F level (examination of B level); Operation continuously; Generator is horizontal installation; Pattern IM7311 is installed, i.e. an end cylinder shaft extension, seat formula sliding bearing, pressure oil circulating lubricating, band monoblock underframe.The degree of protection of motor main body is IP20, and brushless exciter is IP23; The motor type of cooling is IC27, i.e. the free air intake in two ends, and the pipeline air-out, wind pipe is positioned at the motor top.Motor length overall 3397, beam overall 2740, height of center 630.Main outlet box is positioned at the motor right side, and brushless exciter is positioned at the non-transmission side afterbody of motor.
Also do not have the similar large-scale single phase synchronous generator that is used for electrolytic tinplate in the prior art, therefore, the rotor structure that how to design the large-scale single phase synchronous generator, particularly this generator of this purposes has become insider's problem demanding prompt solution.
Summary of the invention
So the purpose of this utility model is overcoming the deficiencies in the prior art, provide a kind of rotor structure of guaranteeing motor large-scale single phase synchronous generator safe and reliable to operation.
The technical scheme that realizes above-mentioned purpose is: a kind of rotor structure of large-scale single phase synchronous generator, comprise some magnetic poles that constitute the conduct iron core by pole shoe and pole body, the yoke that is connected with magnetic pole and be sleeved on pole coil on the pole body of magnetic pole, all be axially arranged with caulking groove on the lateral surface of described each magnetic pole pole shoe, also comprise some damper rods that are embedded in the caulking groove, described each damper rod is connected with electrically conducting manner by some damping rings and brace between the both ends of rotor of next-door neighbour's magnetic pole and forms the cylindrical shape damping coil, and the resistance of described damping coil is 8%～12% of its reactance.
The rotor structure of above-mentioned large-scale single phase synchronous generator, wherein, described brace is by silver soldering and set bolt with the connection between the adjacent damping ring, the centre of this brace is provided with stress relief grooves.
The rotor structure of above-mentioned large-scale single phase synchronous generator, wherein, the two ends of described damping coil also are provided with retaining ring.
The rotor structure of above-mentioned large-scale single phase synchronous generator, wherein, described pole core adopt steel plate to be overrided to form and the outsourcing empire cloth as insulation against ground.
The rotor structure of above-mentioned large-scale single phase synchronous generator, wherein, described pole coil is the concentric type winding, pads with the insulation fabric swatch between described pole coil and the pole body, makes pole coil and pole body be fixed into an integral body.
The rotor structure of above-mentioned large-scale single phase synchronous generator, wherein, described yoke adopts double T tail wedge to tighten up with the connection of magnetic pole medial surface.
Adopted the rotor structure of large-scale single phase synchronous generator of the present utility model, because the resistance of damping winding is much smaller than its reactance in the design, make the damping winding electric current fall behind its electromotive force, make magnetic Damping kinetic potential and negative phase-sequence magnetomotive force near anti-phase, thereby improved damping near 90 °; Because of damping ring adopts the brace connected mode, add retaining ring again, guaranteed that motor is safe and reliable to operation.In addition, yoke adopts double T tail wedge to tighten up with the connection of magnetic pole, adds suitable preload pressure during assembling, makes motor rotor can bear overload impact, also guarantees the mechanical stress that rotating parts produces in the time of bearing the motor high-speed cruising.
Description of drawings
Fig. 1 is the profile of the rotor structure of large-scale single phase synchronous generator of the present utility model;
Fig. 2 is the end view of the rotor structure of large-scale single phase synchronous generator of the present utility model;
Fig. 3 is the I enlarged drawing among Fig. 2;
Fig. 4 is that A among Fig. 2 is to view.
Embodiment
See also Fig. 1 to Fig. 4, the rotor structure of large-scale single phase synchronous generator of the present utility model, the capacity motor of this generator are 2200KVA, and number of poles is 8P, voltage 3300V, rotating speed 750r/min, frequency 50Hz; Power factor: 0.9 (hysteresis); Insulation: F level (examination of B level); Operation continuously; Generator is horizontal installation.The rotor of this generator adopts salient-pole structure, and it comprises rotating shaft 1, be sleeved on the yoke 2 in the rotating shaft 1 and be connected eight magnetic poles 3 of yoke 2 outer ends, and yoke 2 adopts double T tail wedge 23 to tighten up with the connection of magnetic pole 3 medial surfaces.Wherein, magnetic pole 3 is made of pole shoe 31 and pole body 32, magnetic pole 3 adopt steel plates to be overrided to form and the outsourcing empire cloth as insulation against ground.Be set with pole coil 33 on the pole body 32 of magnetic pole 3, during calculating, winding temperature rise considered the influence of even-order harmonic electric current, therefore this pole coil 33 is the concentric type winding, and pad with insulation fabric swatch 30 between pole coil 33 and the pole body 32, make pole coil 33 and pole body 32 be fixed into an integral body, separate with interpolar support 34 between each utmost point pole coil 33.All be axially arranged with caulking groove 310 on the lateral surface of each magnetic pole pole shoe 31, this caulking groove 310 is used to set damper rod 4, each damper rod 4 is connected with electrically conducting manner by damping ring 41 and 16 braces 40 between the both ends of rotor of next-door neighbour's magnetic pole 3 and forms the cylindrical shape damping coil, in order to improve damping, the resistance of damping winding is much smaller than its reactance, its resistance is 8%～12% of its impedance approximately, make the damping winding electric current fall behind its electromotive force, make magnetic Damping kinetic potential and negative phase-sequence magnetomotive force near anti-phase near 90 °.4 of each damper rods connect the brace 40 that adopts and connect, this brace 40 adds fixedly bolt 42 with the silver soldering that is connected to of adjacent damper rod 4, also have stress relief grooves 400 in the middle of the brace 40, to discharge the stress that expands and produce owing to heating, it is reliable that assurance is electrically connected.The two ends of damping coil also are provided with retaining ring 5, to improve the rigidity intensity of damping coil, guarantee that motor is safe and reliable to operation.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (6)
1. the rotor structure of a large-scale single phase synchronous generator, comprise and somely constitute magnetic pole, the yoke that is connected with magnetic pole and be sleeved on pole coil on the pole body of magnetic pole as iron core by pole shoe and pole body, all be axially arranged with caulking groove on the lateral surface of described each magnetic pole pole shoe, it is characterized in that, also comprise some damper rods that are embedded in the caulking groove, described each damper rod is connected with electrically conducting manner by some damping rings and brace between the both ends of rotor of next-door neighbour's magnetic pole and forms the cylindrical shape damping coil, and the resistance of described damping coil is 8%～12% of its reactance.
2. the rotor structure of large-scale single phase synchronous generator according to claim 1 is characterized in that, described brace is by silver soldering and set bolt with the connection between the adjacent damping ring, and the centre of this brace is provided with stress relief grooves.
3. the rotor structure of large-scale single phase synchronous generator according to claim 1 and 2 is characterized in that, the two ends of described damping coil also are provided with retaining ring.
4. the rotor structure of large-scale single phase synchronous generator according to claim 1 is characterized in that, described pole core adopt steel plate to be overrided to form and the outsourcing empire cloth as insulation against ground.
5. the rotor structure of large-scale single phase synchronous generator according to claim 1 is characterized in that, described pole coil is the concentric type winding, pads with the insulation fabric swatch between described pole coil and the pole body, makes pole coil and pole body be fixed into an integral body.
6. the rotor structure of large-scale single phase synchronous generator according to claim 1 is characterized in that, described yoke adopts double T tail wedge to tighten up with the connection of magnetic pole medial surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720074212XU CN201075800Y (en) | 2007-08-29 | 2007-08-29 | Rotor structure of large-scale single phase synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720074212XU CN201075800Y (en) | 2007-08-29 | 2007-08-29 | Rotor structure of large-scale single phase synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075800Y true CN201075800Y (en) | 2008-06-18 |
Family
ID=39521057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720074212XU Expired - Lifetime CN201075800Y (en) | 2007-08-29 | 2007-08-29 | Rotor structure of large-scale single phase synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075800Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640457B (en) * | 2008-07-31 | 2011-03-30 | 上海电气集团上海电机厂有限公司 | Method for installing AC/AC variable-frequency steel-rolling motor rotors and its magnetic poles |
| CN102185403A (en) * | 2011-05-09 | 2011-09-14 | 镇江中船现代发电设备有限公司 | Damping winding of generator rotor |
| EP2665159A3 (en) * | 2012-05-16 | 2018-03-28 | Hitzinger GmbH | Machine with salient poles |
| CN111095739A (en) * | 2017-09-22 | 2020-05-01 | 爱信艾达株式会社 | Stator and stator coil |
| CN112740521A (en) * | 2020-12-18 | 2021-04-30 | 安徽一天电气技术股份有限公司 | Single-phase synchronous generator, single-phase power supply, arc extinction system and arc extinction method |
| JP2021532714A (en) * | 2018-07-23 | 2021-11-25 | ルノー エス.ア.エス.Renault S.A.S. | Wire guidance device for the rotor of wound type rotor type synchronous electromechanical machines |
-
2007
- 2007-08-29 CN CNU200720074212XU patent/CN201075800Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640457B (en) * | 2008-07-31 | 2011-03-30 | 上海电气集团上海电机厂有限公司 | Method for installing AC/AC variable-frequency steel-rolling motor rotors and its magnetic poles |
| CN102185403A (en) * | 2011-05-09 | 2011-09-14 | 镇江中船现代发电设备有限公司 | Damping winding of generator rotor |
| EP2665159A3 (en) * | 2012-05-16 | 2018-03-28 | Hitzinger GmbH | Machine with salient poles |
| CN111095739A (en) * | 2017-09-22 | 2020-05-01 | 爱信艾达株式会社 | Stator and stator coil |
| JP2021532714A (en) * | 2018-07-23 | 2021-11-25 | ルノー エス.ア.エス.Renault S.A.S. | Wire guidance device for the rotor of wound type rotor type synchronous electromechanical machines |
| JP7351899B2 (en) | 2018-07-23 | 2023-09-27 | ルノー エス．ア．エス． | Wire guiding device for rotor of synchronous electric machine of wound rotor type |
| CN112740521A (en) * | 2020-12-18 | 2021-04-30 | 安徽一天电气技术股份有限公司 | Single-phase synchronous generator, single-phase power supply, arc extinction system and arc extinction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201075800Y (en) | Rotor structure of large-scale single phase synchronous generator | |
| CN101752916B (en) | Composite excitation permanent magnet wind power generator with combined stator and rotor sructure | |
| CN105281467A (en) | Generator capable of long-term grid-connected operation | |
| CN105576929A (en) | AC brushless electro-magnetic starter generator employing concentrated windings | |
| CN102723833B (en) | Three-phase induction motor with unbalanced voltage compensation function | |
| CN204156697U (en) | A kind of direct-drive permanent magnet wind power generator of bimorph transducer split-type structure | |
| CN101931297A (en) | Disk-type magneto generator of statorless iron core | |
| CN201813263U (en) | Rotating rectifier bridge structure of high-speed motor | |
| CN202435167U (en) | Damping winding structure of steam turbine generator | |
| CN101895179B (en) | Alternating current frequency conversion high-speed asynchronous motor | |
| CN207766040U (en) | A kind of generator | |
| CN201113716Y (en) | Large-capacity synchronizing generator brushless exciter | |
| CN202586691U (en) | Permanent magnet synchronous wind-driven generator | |
| CN202616957U (en) | Three-phase induction motor having unbalanced voltage compensation action | |
| CN109217712A (en) | A kind of electrostatic induction brushless AC generator and its application method | |
| CN105805022B (en) | A kind of portable series excited machine water pump | |
| CN103401357B (en) | 60MW brushless excitation steam turbine generator | |
| CN103973063B (en) | A kind of new type rotor structure improving magneto starting performance and steady-state behaviour | |
| CN201742269U (en) | Brushless excitation multiphase water-cooling synchronous wind driven generator | |
| CN205092682U (en) | Generator that can be incorporated into power networks for a long time | |
| RU101281U1 (en) | ELECTRIC MACHINE CONVERTER | |
| Yang et al. | Design of Axial Flux Coreless PM Motors with the New Stator Configuration | |
| CN103618391A (en) | Ten-pole twelve-groove permanent magnet brushless motor | |
| CN107959396A (en) | A kind of low energy consumption AC/DC universal motor | |
| CN203352378U (en) | 60MW brushless excitation turbine generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080618 |