CN1645720A - Synchronous generator - Google Patents
Synchronous generator Download PDFInfo
- Publication number
- CN1645720A CN1645720A CN 200410073317 CN200410073317A CN1645720A CN 1645720 A CN1645720 A CN 1645720A CN 200410073317 CN200410073317 CN 200410073317 CN 200410073317 A CN200410073317 A CN 200410073317A CN 1645720 A CN1645720 A CN 1645720A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- earth permanent
- rare
- rotor assembly
- assembly
- 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.)
- Pending
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention consists of case, rotating shaft, slip ring unit, brush holder, brush and back end cap. The feature is: it also includes rotator assembly made of rare earth permanent magnet and electric excitation rotator assembly. The rare earth permanent magnet is connected with electric excitation rotator assembly in series on the rotating shaft. The stator is embedded into the case and is shared by rotator assembly made by rare earth permanent magnet and electric excitation. Because combined excitation method of series rotator and parallel magnetic circuits is adopted, the output voltage keeps constant.
Description
Technical field
The present invention relates to a kind of synchronous generator, exactly is a kind of series connection rotor parallel circuits compound rectifier excitation constant voltage synchronous generator.
Background technology
The used synchronous generator of the power-supply system of known middle low power is divided into two kinds: electric excitation type synchronous generator and magneto synchronous generator.After electric excitation type synchronous generator band carried, terminal voltage landing was bigger, and about 30%, when load variations or generator speed changed, voltage was more unstable, influences the generator belt loading capability, and bulky, efficient is lower.It can compensate output voltage by being equipped with the exciting current adjusting device, but adjustable range is less.When load variations or generator speed change, be difficult to voltage stabilizing.The magneto synchronous generator does not need excitation winding and dc excitation power, and is simple in structure, reliable, and volume is little, the efficient height.But magneto-electric generator magnetic field is difficult to regulate, and terminal voltage also reduces about 10% behind the bringing onto load, when load variations or generator speed change the fluctuation of output voltage bigger, influence the operate as normal of load, thereby limited its range of application.
Summary of the invention
In order to overcome after electric excitation type synchronous generator band carries in the prior art, the terminal voltage landing is bigger, and spread of voltage influences the generator belt loading capability, and the deficiency bulky, that efficient is lower; And magneto-electric generator magnetic field is difficult to regulate, cause the generator output voltage fluctuation during load variations, influence the deficiency of the operate as normal of load, the invention provides a kind of synchronous generator, the advantage of its current collection excitation-type synchronous generator and magneto synchronous generator is an one, and it is constant that output voltage keeps, be not subjected to the influence of load, significantly improve the generator powered quality, make load work in optimum all the time, reduce the volume and weight of generator simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of synchronous generator, comprise casing 6, rotating shaft 9, slip ring assembly 2, brush carrier 3, brush 4 and rear end cap assembly 1, it is characterized in that: also comprise rare-earth permanent magnet rotor assembly 7 and electric excitation rotor assembly 5, slip ring assembly 2, rare-earth permanent magnet rotor assembly 7 and electric excitation rotor assembly 5 are connected in rotating shaft 9, stator 8 is embedded on the casing 6, for rare-earth permanent magnet rotor assembly 7 and electric excitation rotor assembly 5 shared.
Described stator 8 windings are double winding, adopt short distance to add mark flute profile formula.
Described rare-earth permanent magnet rotor assembly 7 is made up of p-m rotor yoke (15), rare-earth permanent magnet (14) and collar (13), and p-m rotor yoke 15 outsides are distributed with some rare-earth permanent magnets 14, and outermost layer is with collar 13.
2, two copper slip rings 19 of described slip ring assembly are respectively " L " type and inverted "L" shaped, are enclosed within on two supporting slip ring linings 21 of shape with it, constitute the two poles of the earth of slip ring 19, and the centre is an insulating barrier 20.
Described rare-earth permanent magnet rotor assembly 7 and electric excitation rotor assembly 5 are 4 pairs of electrode structures.
Described p-m rotor yoke 15 is a hollow-core construction, remove bonding rare-earth permanent magnet 14 and with rotating shaft 9 coupling parts outside, hollow out vertically, only stay one section brace rod, have the mounting hole of several symmetrical distributions on the brace rod.
The present invention's advantage compared to existing technology is, because the present invention adopts the compound rectifier excitation mode of series connection rotor parallel circuits, it is constant that output voltage keeps, be not subjected to the influence of load, significantly improve the generator powered quality, voltage fluctuation can make load always work in rated condition less than 1% under the condition that takes place to change in a big way with electric loading and generator speed, and the generator volume also has obviously and reduces.Rare-earth permanent magnet rotor assembly rotor yoke 15 adopts hollow-core construction, but weight reduction.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a synchronous generator body construction schematic diagram of the present invention
Fig. 2 is the rotor structure figure schematic diagram
Fig. 3 is electric excitation rotor assembly schematic diagram
Fig. 4 is a p-m rotor assembly schematic diagram
Fig. 5 is a p-m rotor yoke schematic diagram
Fig. 6 is the slip ring assembly schematic diagram
1-rear end cap assembly 2-slip ring assembly 3-brush carrier 4-brush 5-electricity excitation rotor assembly 6-casing 7-p-m rotor assembly 8-stator 9-rotating shaft 10-slip ring and excitation winding connecting line 11-excitation winding 12-key I13-collar 14-rare-earth permanent magnet 15-p-m rotor yoke 16-key II 17-trim ring 18-slot wedge 19-slip ring 20-dividing plate 21-slip ring lining among the figure
Embodiment
With reference to Fig. 1～6, rare earth permanent magnet main generator part of the present invention and the rotating shaft of electric excitation auxiliary generator partial common, and a shared cover stator.The armature winding of synchronous generator is on stator.Rare earth permanent magnet main generator part and electric excitation auxiliary generator part are in parallel on magnetic circuit.The rotor structure of main generator part adopts radially excitation structure, compared to other forms of rotor structure, and the radially rare-earth permanent magnet tandem working of excitation, every permanent magnet provides generator every utmost point air-gap flux, and magnetic leakage factor is less.Select tile type magnet steel for use.Regulate the width of watt type magnet steel and promptly regulate pole embrace, can improve the air-gap field waveform.Auxiliary generator partly adopts the salient pole type field structure, adopts non-uniform gap, to obtain the sine wave alternating current of system requirements output.
Divide required changes of magnetic field in order to make electric excitation auxiliary generator part can produce voltage regulating part, change the external characteristic of generator, generator voltage is remained unchanged, satisfy generator and can both realize constant voltage in rated speed scope up and down, its magnetic circuit working point will be at the linearity range of no-load characteristic.
This generator partly is made up of rare earth permanent magnet main generator part and electric excitation auxiliary generator, and its structure is series connection rotor parallel circuits.The shared stator 8 of main and auxiliary generator, rotor is divided into two parts: rare-earth permanent magnet rotor assembly 7 and electric excitation rotor assembly 5, two parts are connected in rotating shaft 9, are 4 pairs of utmost points.Slip ring assembly 2 is installed in the rotating shaft 9.Brush carrier 3 and brush 4 are installed on the rear end cap assembly 1, and slip ring and excitation winding connecting line 10 provide exciting current for excitation winding 11.
Stator winding adopts the double winding form, avoids the mutual interference of different loads phase.And adopt short distance to add mark flute profile formula, to improve the sinusoidal degree of potential waveform.Have radiating groove along the circumferential direction on the casing 6, be beneficial to heat radiation and weight reduction.
In the rare-earth permanent magnet rotor assembly 7, number of poles is 8 i.e. 4 pairs of utmost points; P-m rotor yoke 15 adopts hollow-core construction, with weight reduction.Remove bonding rare-earth permanent magnet 14 and with rotating shaft 9 coupling parts outside, hollow out vertically, only stay one section brace rod, have the mounting hole of two symmetrical distributions on the brace rod, also can open the mounting hole of four or six symmetrical distributions.Rotor yoke 15 outsides are distributed with some rare-earth permanent magnets 14, and outermost layer is with collar 13.Key II16 is fixed on rare-earth permanent magnet rotor assembly 7 in the rotating shaft 9.
In the electricity excitation rotor assembly 5, number of poles is 8 i.e. 4 pairs of utmost points; Excitation winding 11 embeds in groove for concentrating winding, by soaking the High Performance Insulation lacquer, improves insulation property and mechanical strength.And with slot wedge 18 protection, when preventing high speed rotating, excitation winding 11 throws away.Key I12 is fixed on electric excitation rotor assembly 5 in the rotating shaft 9, and by trim ring 17 axial location.
In slip ring assembly 2, two copper slip rings 19 are respectively " L " type and inverted "L" shaped, are enclosed within on two supporting slip ring linings 21 of shape with it, constitute the two poles of the earth of slip ring, and the centre is an insulating barrier 20.
Claims (6)
1, a kind of synchronous generator, comprise casing (6), rotating shaft (9), slip ring assembly (2), brush carrier (3), brush (4) and rear end cap assembly (1), it is characterized in that: also comprise rare-earth permanent magnet rotor assembly (7) and electric excitation rotor assembly (5), slip ring assembly (2), rare-earth permanent magnet rotor assembly (7) and electric excitation rotor assembly (5) are gone up series connection in rotating shaft (9), stator (8) is embedded on the casing (6), for rare-earth permanent magnet rotor assembly (7) and electric excitation rotor assembly (5) shared.
2, synchronous generator according to claim 1 is characterized in that: described stator (8) winding is a double winding, adopts short distance to add mark flute profile formula.
3, synchronous generator according to claim 1, it is characterized in that: described rare-earth permanent magnet rotor assembly (7) is made up of p-m rotor yoke (15), rare-earth permanent magnet (14) and collar (13), p-m rotor yoke (15) outside is distributed with some rare-earth permanent magnets (14), and outermost layer is with collar (13).
4, synchronous generator according to claim 1, it is characterized in that: described slip ring assembly (2), two copper slip rings (19) are respectively " L " type and inverted "L" shaped, be enclosed within on supporting two the slip ring linings (21) of shape with it, constitute the two poles of the earth of slip ring (19), the centre is insulating barrier (20).
5, according to claim 1 or 3 described synchronous generators, it is characterized in that: described rare-earth permanent magnet rotor assembly (7) and electric excitation rotor assembly (5) are 4 pairs of electrode structures.
6, according to claim 1 or 3 described synchronous generators, it is characterized in that: described p-m rotor yoke (15) is a hollow-core construction, remove bonding rare-earth permanent magnet (14) and with rotating shaft (9) coupling part outside, hollow out vertically, only stay one section brace rod, have the mounting hole of several symmetrical distributions on the brace rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410073317 CN1645720A (en) | 2004-11-26 | 2004-11-26 | Synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410073317 CN1645720A (en) | 2004-11-26 | 2004-11-26 | Synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1645720A true CN1645720A (en) | 2005-07-27 |
Family
ID=34868993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410073317 Pending CN1645720A (en) | 2004-11-26 | 2004-11-26 | Synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1645720A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461591C (en) * | 2005-10-14 | 2009-02-11 | 山东理工大学 | Electromagnetic and permanent magnet synchronous voltage stabilizing electric generator |
| CN102769422A (en) * | 2011-05-06 | 2012-11-07 | 陈维加 | Hybrid excitation amplitude modulation power generation method and generator of alternating current generator |
-
2004
- 2004-11-26 CN CN 200410073317 patent/CN1645720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461591C (en) * | 2005-10-14 | 2009-02-11 | 山东理工大学 | Electromagnetic and permanent magnet synchronous voltage stabilizing electric generator |
| CN102769422A (en) * | 2011-05-06 | 2012-11-07 | 陈维加 | Hybrid excitation amplitude modulation power generation method and generator of alternating current generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101562383B (en) | Single-phase reluctance generator | |
| CN101795040A (en) | Overall salient type intermediate-frequency brushless excitation synchronous generator | |
| CN111092499B (en) | Harmonic excitation electro-magnetic doubly salient motor and control method thereof | |
| CN102355107A (en) | Integral salient pole intermediate frequency brushless synchronous generator | |
| CN101964575A (en) | Double-equal pole double-section stator/rotor reluctance generator | |
| CN102005879B (en) | Electric excitation part double stator brushless mixed excitation synchronous generator | |
| CN111082626B (en) | Brushless hybrid excitation synchronous generator with adjustable magnetic leakage | |
| CN102545508A (en) | Permanent magnetic brush synchronous alternating-current generator adopting hybrid excitation manner | |
| CN201860217U (en) | Parallel-structured brushless composite-excitation synchronous motor without additional air gap | |
| CN102005875B (en) | Brushless parallel-structure hybrid excitation synchronous generator without additional air gap | |
| CN202309445U (en) | Overall salient pole type intermediate-frequency brushless synchronous generator | |
| CN201188577Y (en) | Single-phase reluctance generator | |
| CN1893222A (en) | Centrifugal permanent-magnet starting generating equip ment | |
| CN102832767B (en) | Parallel hybrid excitation brushless direct-current fault-tolerant motor | |
| CN111224477A (en) | Parallel structure brushless mixed excitation synchronous generator based on harmonic winding excitation | |
| CN201956846U (en) | Composite excited brushless single phase synchronous generator with novel structure | |
| CN201887629U (en) | Composite excitation type permanent magnet brushless single phase synchronous generator with novel structure | |
| CN111262411A (en) | Double-harmonic winding brushless excitation direct-current generator with wide voltage regulation range | |
| CN110957832A (en) | Automobile engine driven permanent magnet generator | |
| CN1645720A (en) | Synchronous generator | |
| CN201887628U (en) | Novel permanent magnet brushless single-phase synchronous generator with compound excitation mode | |
| CN101483371A (en) | Speed regulating electricity generator with constant frequency | |
| CN111082625A (en) | Alternating magnetic pole brushless hybrid excitation synchronous motor | |
| CN102480201A (en) | Permanent magnet brushless single-phase synchronous generator using novel hybrid excitation way | |
| CN202798388U (en) | Side-by-side mixing excitation brushless direct current fault-tolerant motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |