CN202127381U - Excitation device for synchro generator - Google Patents
Excitation device for synchro generator Download PDFInfo
- Publication number
- CN202127381U CN202127381U CN2011202795518U CN201120279551U CN202127381U CN 202127381 U CN202127381 U CN 202127381U CN 2011202795518 U CN2011202795518 U CN 2011202795518U CN 201120279551 U CN201120279551 U CN 201120279551U CN 202127381 U CN202127381 U CN 202127381U
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- circuit
- feedback circuit
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- power supply
- utility
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- 230000005284 excitation Effects 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses an excitation device for a synchro generator, comprising a microprocessor and a thyristor rectifier circuit, a synchronizing transformer of a power supply, a negative feedback circuit, a difference adjusting control circuit and a malfunction protection circuit connected with the microprocessor. The negative feedback circuit is arranged on an output end of the thyristor rectifier circuit or a stator power supply, and the power supply is connected with the thyristor rectifier circuit through the rectifier transformer. With adoption of the technical scheme, the utility model has the advantages of compact structure, friendly human-computer interface and stable and reliable performance and is convenient to install and maintain and sensitive to adjust and the like. The utility model is controlled by the microprocessor so as to meet the requirements of single hydrogenerator or grid-connected operation and can be further used as an excitation power supply for diesel engine generator with same volume.
Description
Technical field
The utility model relates to a kind of generator excitation unit, specifically, relates to a kind of synchronous generator excitation equipment.
Background technology
Synchronous generator is a kind of the most frequently used alternating current generator.
In the power industry, it is widely used in hydroelectric power generation, thermal power generation, nuclear energy power generation and diesel power generation in modern times.Because synchronous generator generally adopts DC excitation, when its unit independent operating, through regulating exciting current, the voltage of regulator generator easily.
If be connected to the grid operation, because of voltage is determined by electrical network, can not change, the result that regulate exciting current this moment is the power factor and the reactive power of having regulated motor.
Because stator, the rotor structure of synchronous generator are identical with synchronous machine, generally adopt the three-phase form, only armature winding adopts single-phase in some small-sized synchronous generator.
This shows that the effect of excitation unit in synchronous generator is bigger, it need satisfy the requirement of the hydraulic generator unit or the mode that is incorporated into the power networks, so that synchronous generator can be brought into play its bigger effect.
The utility model content
The utility model provides a kind of novel synchronization generator excitation unit to the shortcoming of existing excitation unit, and this device can satisfy the requirement of the hydraulic generator unit or the mode that is incorporated into the power networks, and, have the controlled technique effect of man-machine interface.
It is following that the utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of synchronous generator excitation equipment; Comprise microprocessor and connected scr rectification circuit, power supply synchrotrans, negative-feedback circuit, accent difference control circuit and fault secure circuit; And the man machine operation interface that is connected with microprocessor, wherein, said negative-feedback circuit is located on scr rectification circuit output or the stator power; And power supply links together through rectifier transformer and scr rectification circuit.
Further; Preferred construction is; Said negative-feedback circuit comprises current negative feedback circuit, voltage negative feedback circuit and power factor (PF) negative-feedback circuit, and wherein, said current negative feedback circuit, voltage negative feedback circuit are connected with the output of scr rectification circuit; Said power factor negative-feedback circuit is connected with stator power.
Further, preferred construction is that said accent difference control circuit is connected with stator power with fault secure circuit.
The utility model after having taked technique scheme, have compact conformation, convenient for installation and maintenance, regulate plurality of advantages such as sensitive, that man-machine interface is friendly, performance is extremely reliable and stable; And,, also can be used for the usefulness of field power supply of the diesel engine generator of equal capacity because the control of above-mentioned microprocessor makes its requirement that can satisfy the hydraulic generator unit or the mode that is incorporated into the power networks.
Description of drawings
Below in conjunction with accompanying drawing the utility model is carried out detailed description, so that the above-mentioned advantage of the utility model is clearer and more definite.
Fig. 1 is the framework sketch map of the utility model synchronous generator excitation equipment.
Embodiment
Below in conjunction with accompanying drawing detailed description is carried out in this practicality.
Like figure; Said synchronous generator excitation equipment comprises microprocessor and connected scr rectification circuit, power supply synchrotrans, negative-feedback circuit, accent difference control circuit and fault secure circuit, and the man machine operation interface that is connected with microprocessor; Wherein, Said negative-feedback circuit is located on scr rectification circuit output or the stator power, and power supply links together through rectifier transformer and scr rectification circuit.In this embodiment device, power supply is taked the industrial power of 380V.
Wherein, said single-chip microcomputer is the CPU that 16 single-chip microcomputers form, and its man-machine interface is display unit and the operating means that has disposed 5 high brightness charactrons.
Wherein, said negative-feedback circuit comprises current negative feedback circuit, voltage negative feedback circuit and power factor (PF) negative-feedback circuit, and wherein, said current negative feedback circuit, voltage negative feedback circuit are connected with the output of scr rectification circuit; Said power factor negative-feedback circuit is connected with stator power.
Wherein, said accent difference control circuit is connected with stator power with fault secure circuit.
The utility model after having taked technique scheme, have compact conformation, convenient for installation and maintenance, regulate plurality of advantages such as sensitive, that man-machine interface is friendly, performance is extremely reliable and stable; And,, also can be used for the usefulness of field power supply of the diesel engine generator of equal capacity because the control of above-mentioned microprocessor makes its requirement that can satisfy the hydraulic generator unit or the mode that is incorporated into the power networks.
It should be noted that; Above-mentioned specific embodiment only is exemplary; Under the above-mentioned instruction of the utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in the protection range of the utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of the utility model, are not to be used to limit the utility model.The protection range of the utility model is limited claim and equivalent thereof.
Claims (3)
1. synchronous generator excitation equipment; It is characterized in that, comprise microprocessor and connected scr rectification circuit, power supply synchrotrans, negative-feedback circuit, accent difference control circuit and fault secure circuit, and the man machine operation interface that is connected with microprocessor; Wherein, Said negative-feedback circuit is located on scr rectification circuit output or the stator power, and power supply links together through rectifier transformer and scr rectification circuit.
2. synchronous generator excitation equipment according to claim 1; It is characterized in that; Said negative-feedback circuit comprises current negative feedback circuit, voltage negative feedback circuit and power factor (PF) negative-feedback circuit; Wherein, said current negative feedback circuit, voltage negative feedback circuit are connected with the output of scr rectification circuit; Said power factor negative-feedback circuit is connected with stator power.
3. synchronous generator excitation equipment according to claim 1 and 2 is characterized in that, said accent difference control circuit is connected with stator power with fault secure circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202795518U CN202127381U (en) | 2011-07-27 | 2011-07-27 | Excitation device for synchro generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202795518U CN202127381U (en) | 2011-07-27 | 2011-07-27 | Excitation device for synchro generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202127381U true CN202127381U (en) | 2012-01-25 |
Family
ID=45490441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202795518U Expired - Fee Related CN202127381U (en) | 2011-07-27 | 2011-07-27 | Excitation device for synchro generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202127381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300573A (en) * | 2014-08-05 | 2015-01-21 | 广西大学 | A small and micro hydroelectric unit and its integrated control device |
-
2011
- 2011-07-27 CN CN2011202795518U patent/CN202127381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300573A (en) * | 2014-08-05 | 2015-01-21 | 广西大学 | A small and micro hydroelectric unit and its integrated control device |
| CN104300573B (en) * | 2014-08-05 | 2016-10-05 | 广西大学 | A kind of little micro-Hydropower Unit and composite control apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |