KR20110108495A - Rotor of generator having damper winding - Google Patents
Rotor of generator having damper winding Download PDFInfo
- Publication number
- KR20110108495A KR20110108495A KR1020100027713A KR20100027713A KR20110108495A KR 20110108495 A KR20110108495 A KR 20110108495A KR 1020100027713 A KR1020100027713 A KR 1020100027713A KR 20100027713 A KR20100027713 A KR 20100027713A KR 20110108495 A KR20110108495 A KR 20110108495A
- Authority
- KR
- South Korea
- Prior art keywords
- rotor
- generator
- main
- alternator
- winding
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/09—Forming windings by laying conductors into or around core parts by laying conductors into slotted rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Synchronous Machinery (AREA)
Abstract
The present invention relates to a rotor of an alternator with a built-in braking winding, and more particularly, to a rotor of an alternator with a built-in braking winding to be welded and installed with an aluminum rod and an aluminum plate.
To this end, the present invention, by inserting an aluminum rod into a plurality of slots formed on each pole piece of the main rotor of the generator, by welding the aluminum plate at both ends thereof, the mounting of the braking winding is more secure electrical and mechanical It provides an alternator rotor with a built-in braking winding for simple installation.
Description
The present invention relates to a rotor of an alternator with a built-in braking winding, and more particularly, a braking winding in which a braking winding installed in a main rotor of a generator can be installed more easily by using an aluminum rod and an aluminum plate. It relates to a rotor of an alternator.
Generally, various buildings such as hospitals, banks and broadcasting stations are equipped with emergency alternators in case of commercial power failure.
The emergency alternator is a kind of small generator driven by a diesel engine which is an internal combustion engine using fossil fuel as an energy source, and serves to supply the generated electric power to a power facility in a building.
Since the diesel engine driving such an alternator is a reciprocating motor, the torque pulsates in relation to the number of cylinders, which adversely affects the characteristics of the generator. Therefore, if the generator suddenly changes its load in the rotational operation state, the torque of the diesel engine is pulsating, so the angular velocity is not constant during operation, which causes harmonics in which the phase difference angle of the generator pulsates around the phase difference angle at the average load. By interfering with the electricity system being generated, it supplies low quality electricity to the load power system, and also causes abnormal vibration to the rotor of the generator.
In order to prevent this phenomenon, in order to remove the pulsating harmonics, the current is sensed in the damper winding according to the variation of the phase difference angle of the generator, and the induced magnetic flux of the magnetic field flux is changed according to the variation, causing the phenomenon. As a way to eliminate the pulsating harmonics, the installation of the braking winding should be simpler to install in the main rotor of the generator.
The conventional braking winding has a structure in which a copper conductor is inserted into a slot formed in the iron core of the rotor, and both ends of the conductor are short-circuited by a short circuit. That is, as shown in FIG. 4, after inserting a braid winding 3 'in the form of a rod into a plurality of slots 2' formed in the field core 1 'of the rotor, both ends of the braking winding 3' are inserted. A short circuit ring 4 'for shorting and fixing is provided separately, and then a braking winding 3' is inserted into each hole 7 'formed in the short circuit ring 4' and assembled.
However, in the conventional assembly of the braking winding, it is difficult to assemble the conductor and the short-circuit ring, since it is not easy to insert the conductor while fitting each conductor in a straight line with each hole of the egg ring.
The present invention has been made in view of the above-mentioned, by inserting an aluminum rod into a plurality of slots formed on each pole piece of the main rotor of the generator, by welding the aluminum plate on both ends, mounting of the braking winding The aim is to provide a rotor for an alternator with a built-in braking winding that can be installed simply and safely.
In order to achieve the above object, the present invention forms a plurality of slots at equal intervals on the outer circumference of the main rotor rotatably fastened to the shaft, and inserts an aluminum conductor rod into each slot, thereby providing an aluminum plate at both ends of the aluminum conductor rod. In addition, the present invention provides a rotor of an alternator with a built-in braking winding, which is welded by padding.
In one embodiment of the present invention, the main rotor is composed of a magnetic field core for the main generator of the cross-sectional structure of the magnetic pole pieces, and the field winding for the main generator wound around the field core for the main generator, the plurality of slots In the outer peripheral portion of the generator iron core for the generator is characterized in that it is formed at equal intervals along the circumferential direction at the same time.
Through the above problem solving means, the present invention provides the following effects.
According to the present invention, by inserting the aluminum rod-shaped braking winding in the slots formed on each pole piece of the main rotor, by welding the aluminum plate on both ends thereof, the assembly state of the braking winding is safe and secure, electrical and mechanical It can be made, and the assembly work is made simple to improve the workability.
1 is an exploded perspective view showing an alternator having a rotor with a braking winding according to the present invention.
2 is a perspective view showing a rotor with a braking winding according to the present invention.
Figure 3 is a perspective view showing the assembled state of the main rotor with a built-in braking winding according to the present invention.
4 is a schematic view showing a rotor provided with a conventional braking winding.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The present invention is an alternator, in which a rotating armature alternator and a rectifier having a structure opposite to that of the main generator are directly connected to the same axis of the main generator, so that the DC power generated from the alternator and the rectifier is supplied as a lead wire on the same axis. The main focus is to make it easier to install the braking winding on the main rotor of the main generator.
Here, with reference to the accompanying Figure 1 looks at the configuration of the alternator having a rotor of the present invention.
The generator of the present invention is an emergency alternator in case of commercial power failure in various buildings such as a hospital, a bank, and a broadcasting station, and has a
In addition, a
In addition, the
In particular, the
Further, after the
At this time, the
Meanwhile, a
In addition, a
More specifically, a plurality of
Here, as shown in FIGS. 2 and 3, the magnetic pole piece of the
Subsequently, the
Thus, the braking winding of the shape of the
In addition, since the diesel engine of the alternator is a reciprocating type prime mover, if the generator suddenly changes its load depending on the number of cylinders, the torque of the diesel engine is pulsated, so the angular speed is not constant during operation. Therefore, if harmonics in which the phase difference angle inside the generator pulsates around the phase difference at the average load is generated, the current of the damper winding fluctuates according to the change in the phase difference angle of the generator, thereby changing the induced magnetic flux of the field flux to pulsate. Since the harmonics are removed, the braking control of the generator is smooth and the abnormal vibration occurring in the rotor of the generator can be prevented.
1:
3,5 washer 6: spacer
7: coupling 8: fan
9: shaft 10: main rotor
10a: field core for
11: Excitation rotor 11a: Electromagnetic core for exciter
11b: armature winding for women 12: rectifier
13: bearing 14: flange adapter
17: fan cover 22: main stator
23: frame assembly 26: terminal box assembly
29: terminal board assembly 30: automatic voltage regulator
31: female stator 34: end bell
40: support boss 50: slot
52: aluminum rod 54: aluminum plate
Claims (2)
The main rotor 10 is composed of a field generator core 10a for the main generator having a cross-sectional cross-section structure as a magnetic pole piece, and a field winding 10b for the main generator wound around the field generator core 10a for the main generator. The slot 50 is a rotor of the alternator with a built-in braking winding, characterized in that formed in the equally spaced along the circumferential direction at the same time formed in the outer circumferential portion of the field iron core (10a) for the main generator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100027713A KR101084354B1 (en) | 2010-03-29 | 2010-03-29 | Rotor of generator having damper winding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100027713A KR101084354B1 (en) | 2010-03-29 | 2010-03-29 | Rotor of generator having damper winding |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110108495A true KR20110108495A (en) | 2011-10-06 |
KR101084354B1 KR101084354B1 (en) | 2011-11-16 |
Family
ID=45026067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20100027713A KR101084354B1 (en) | 2010-03-29 | 2010-03-29 | Rotor of generator having damper winding |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101084354B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101443274B1 (en) * | 2013-06-28 | 2014-09-23 | 대흥기전주식회사 | Alternator For Improved Distortion Factor |
CN106230194A (en) * | 2016-08-30 | 2016-12-14 | 中车株洲电机有限公司 | A kind of development machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR102021010451A2 (en) | 2020-06-03 | 2021-12-14 | Weg Equipamentos Elétricos S.a. | ROTOR FOR ELECTRICAL ROTATING MACHINE, MANUFACTURING PROCESS AND CORRESPONDING ELECTRIC ROTATING MACHINE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4868122B2 (en) * | 2006-01-24 | 2012-02-01 | 株式会社安川電機 | Cage type rotor and electric motor using the same |
KR100703590B1 (en) * | 2006-11-03 | 2007-04-09 | 삼양전원주식회사 | A rotor for generator |
-
2010
- 2010-03-29 KR KR20100027713A patent/KR101084354B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101443274B1 (en) * | 2013-06-28 | 2014-09-23 | 대흥기전주식회사 | Alternator For Improved Distortion Factor |
CN106230194A (en) * | 2016-08-30 | 2016-12-14 | 中车株洲电机有限公司 | A kind of development machine |
Also Published As
Publication number | Publication date |
---|---|
KR101084354B1 (en) | 2011-11-16 |
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