CN205319907U - Intermediate frequency, dc generator excitation system - Google Patents
Intermediate frequency, dc generator excitation system Download PDFInfo
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- CN205319907U CN205319907U CN201520941705.3U CN201520941705U CN205319907U CN 205319907 U CN205319907 U CN 205319907U CN 201520941705 U CN201520941705 U CN 201520941705U CN 205319907 U CN205319907 U CN 205319907U
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Abstract
The utility model discloses an intermediate frequency, dc generator excitation system, including excitation power source, stator winding and rotor winding, stator winding includes stator body, set up in stator body 16 last iron core magnetic poles, every coil in the cover forms 16 utmost point magnetic fields on the iron core magnetic pole, every adjacent two coil in the cover forms 8 utmost point magnetic fields on the iron core magnetic pole, rotor winding includes rotor body, set up in rotor body 48 last grooves, 3 grooves at the every interval are inserted and are established 16 utmost point armature winding of a coil formation, and 6 grooves at the every interval are inserted and are established 8 utmost point armature winding of a coil formation for a AC exciter produces two AC exciter's function, and can not disturb each other.
Description
Technical field
This utility model relates to a kind of intermediate frequency, DC generator excitation system.
Background technology
Three grades of traditional formula no-brush synchronous generators are mainly made up of main generator, exciter, pilot exciter, rotating rectifier, main generator is at power generating stage, the three-phase alternating current that pilot exciter sends provides excitation for exciter stator winding after three-phase uncontrollable rectifier circuit rectifies, the three-phase alternating current that exciter rotor winding induces provides excitation for main generator rotor Exciting Windings for Transverse Differential Protection after coaxially connected rotating rectifier rectification, and main generator unit stator winding cutting synchronous field sends three-phase alternating current.
To provide excitation to intermediate frequency generator main field and DC generator main field simultaneously, then need two set AC exciters, and two set AC excitation chances interfere.
Summary of the invention
The defect that the purpose of this utility model is in that to overcome in prior art to exist, it is provided that a kind of intermediate frequency, DC generator excitation system a so that AC exciter produces the function of two AC exciters, and each other without interference with.
For achieving the above object, the technical solution of the utility model there is provided a kind of intermediate frequency, DC generator excitation system, including field power supply, stator winding and rotor windings, described stator winding includes stator body, it is arranged at 16 core magnetic poles on described stator body, each described core magnetic pole overlaps a coil and forms 16 pole fields, adjacent two described core magnetic poles often overlap a coil and forms 8 pole fields, described rotor windings includes rotor body, it is opened in 48 grooves on described rotor body, plug a coil at interval of 3 grooves and form 16 Polar armature windings, plug a coil at interval of 6 grooves and form 8 Polar armature windings.
Improving further: described field power supply is two set auxiliary winding, two overlap described auxiliary winding is arranged in intermediate frequency generator main stator, and automatic voltage regulator corresponding with intermediate frequency generator, DC generator is connected respectively.
Improve further: 16 Polar armature windings are connected by the first rotating rectifier between induced potential with intermediate frequency generator main field in 16 pole fields, and 8 Polar armature windings are connected by the second rotating rectifier between induced potential with DC generator main field in 8 pole fields.
Advantage of the present utility model and having the beneficial effects that: by the improvement to the stator winding of excitation system and rotor windings, stator winding can produce 16 pole fields and 8 pole fields, rotor windings has 16 Polar armature windings and 8 Polar armature windings, 16 Polar armature windings produce induced potential in 16 pole fields, the induced potential produced in 8 pole fields is 0, 8 Polar armature windings produce induced potential in 8 pole fields, the induced potential that 8 Polar armature windings produce in 16 pole fields is 0, thus the same AC exciter being can produce the function of two AC exciters, and each other without interference with.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model;
Fig. 2 is stator winding magnetizing coil principle expanded view;
Fig. 3 is 16 Polar armature winding connection figure;
Fig. 4 is 8 Polar armature winding connection figure.
Wherein: 1, core magnetic pole; 2, automatic voltage regulator; 3, the first rotating rectifier; 4, the second rotating rectifier.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described. Following example are only for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
As Figure 1-Figure 4, a kind of intermediate frequency, DC generator excitation system, including field power supply, stator winding and rotor windings, described stator winding includes stator body, it is arranged at 16 core magnetic poles 1 on described stator body, each described core magnetic pole 1 overlaps a coil and forms 16 pole fields, adjacent two described core magnetic poles 1 often overlap a coil and forms 8 pole fields, described rotor windings includes rotor body, it is opened in 48 grooves on described rotor body, plug a coil at interval of 3 grooves and form 16 Polar armature windings, plug a coil at interval of 6 grooves and form 8 Polar armature windings.
Operation principle: stator winding can produce 16 pole fields and 8 pole fields, rotor windings has 16 Polar armature windings and 8 Polar armature windings, 16 Polar armature windings produce induced potential in 16 pole fields, the induced potential produced in 8 pole fields is 0, 8 Polar armature windings produce induced potential in 8 pole fields, the induced potential that 8 Polar armature windings produce in 16 pole fields is 0, illustrate with reference to two armature winding expanded views of Fig. 3 and Fig. 4, wherein Fig. 3 is 16 Polar armature developed winding diagrams, when it rotates in 16 pole fields, two effective edge offices of each coil are in the groove of 3 slot pitch, it is known that, one circle is containing 360 degree of mechanical angles, and occupy 360 degree of electrical angles from theoretical known a pair magnetic pole of classical electrotechnics, if the scope at a circle includes 8 pairs of magnetic poles, then 360 degree of mechanical angles are equal to electrical angle 360 ° X8=2880 °, due to when 48 armature slots uniform in previous circumference, therefore it is in electromotive force 2880 °/48=60 ° electrical angle of difference that adjacent slot inner wire senses, the electromotive force that the conductor being in two grooves of 3 slot pitch senses then differs 60 ° of X3=180 ° of electrical angles. two positive offices of effective edge of each coil of current 16 Polar armature windings are in the groove of 3 slot pitch, so when it rotates in 16 pole fields, electromotive force 180 ° of electrical angles of difference that two effective edges of each coil sense, and for this coil, the electromotive force that it produces is the difference of two active coil limit induced potentials, and result is the twice of one of them active coil limit induced potential. and when it rotates in 8 pole fields, due to electromotive force 90 ° of electrical angles of difference that now office senses on two active coil limits in the groove of 3 slot pitch, although this coil is subtracted each other by the electromotive force that two active coil limits sense can produce certain electromotive force, but, an equal amount of electromotive force 180 ° of electrical angles of difference that it produces with adjacent coil, and the two coil is forward series connection, so being be added, thus the electromotive force of the two coil synthesis is zero, in like manner, the electromotive force of all the other 3 groups of adjacent windings synthesis is zero too, so 16 pole windings induced potential in 8 pole fields is zero.
Utilizing similar arguing, 8 pole windings in equally possible explanation Fig. 4 rotate generation high potential in 8 pole fields and rotate generation electromotive force in 16 pole fields is zero.
So that same AC exciter can produce the function of two AC exciters, and each other without interference with.
In order to provide field power supply to respectively intermediate frequency generator and DC generator, described field power supply is two set auxiliary winding, two overlap described auxiliary winding is arranged in intermediate frequency generator main stator, and automatic voltage regulator 2 corresponding with intermediate frequency generator, DC generator is connected respectively.
The embodiment optimized in the present embodiment is, 16 Polar armature windings are connected by the first rotating rectifier 3 between induced potential with intermediate frequency generator main field in 16 pole fields, 8 Polar armature windings are connected by the second rotating rectifier 4 between induced potential with DC generator main field in 8 pole fields, then 16 Polar armature windings induced potential in 16 pole fields is rectified into direct current by the first rotating rectifier 3 provides excitation to intermediate frequency generator main field, 8 Polar armature windings induced potential in 8 pole fields is rectified into direct current by the second rotating rectifier 4 provides excitation to DC generator main field.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the premise without departing from this utility model know-why; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (3)
1. an intermediate frequency, DC generator excitation system, it is characterized in that: include field power supply, stator winding and rotor windings, described stator winding includes stator body, it is arranged at 16 core magnetic poles on described stator body, each described core magnetic pole overlaps a coil and forms 16 pole fields, adjacent two described core magnetic poles often overlap a coil and forms 8 pole fields, described rotor windings includes rotor body, it is opened in 48 grooves on described rotor body, plug a coil at interval of 3 grooves and form 16 Polar armature windings, plug a coil at interval of 6 grooves and form 8 Polar armature windings.
2. intermediate frequency, DC generator excitation system as claimed in claim 1, it is characterized in that: described field power supply is two set auxiliary winding, two overlap described auxiliary winding is arranged in intermediate frequency generator main stator, and automatic voltage regulator corresponding with intermediate frequency generator, DC generator is connected respectively.
3. intermediate frequency, DC generator excitation system as claimed in claim 1, it is characterized in that: 16 Polar armature windings are connected by the first rotating rectifier between induced potential with intermediate frequency generator main field in 16 pole fields, 8 Polar armature windings are connected by the second rotating rectifier between induced potential with DC generator main field in 8 pole fields.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941705.3U CN205319907U (en) | 2015-11-24 | 2015-11-24 | Intermediate frequency, dc generator excitation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941705.3U CN205319907U (en) | 2015-11-24 | 2015-11-24 | Intermediate frequency, dc generator excitation system |
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| CN205319907U true CN205319907U (en) | 2016-06-15 |
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| CN201520941705.3U Active CN205319907U (en) | 2015-11-24 | 2015-11-24 | Intermediate frequency, dc generator excitation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375725A (en) * | 2015-11-24 | 2016-03-02 | 江阴市航勤特种电机有限公司 | Intermediate frequency and direct current generator excitation system |
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2015
- 2015-11-24 CN CN201520941705.3U patent/CN205319907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375725A (en) * | 2015-11-24 | 2016-03-02 | 江阴市航勤特种电机有限公司 | Intermediate frequency and direct current generator excitation system |
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