CN205754094U - A kind of intelligent digital excitation control system - Google Patents
A kind of intelligent digital excitation control system Download PDFInfo
- Publication number
- CN205754094U CN205754094U CN201620698218.3U CN201620698218U CN205754094U CN 205754094 U CN205754094 U CN 205754094U CN 201620698218 U CN201620698218 U CN 201620698218U CN 205754094 U CN205754094 U CN 205754094U
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- digital signal
- signal processor
- converter
- signal
- digital
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Abstract
The utility model discloses a kind of intelligent digital excitation control system.The signal of telecommunication of input is carried out the conversion of voltage and current by signal conversion unit, is converted to digital signal through A/D converter, then is analyzed to digital signal processor through level translator transmission and processes；Digital signal after digital signal processor analysis, process is transformed to analogue signal by D/A converter, the filtering of the most low-pass filtered device, obtain, via pulse width modulation circuit, the pulse that amplitude is equal, obtain reliable and stable signal output finally by signal amplification circuit.This utility model simple in construction, makes full use of the operational capability of digital signal processor, makes digital signal processor and other functional modules be fused into organic whole, decreases resource loss, shorten the control cycle, improves control accuracy；Further, use Controller Area Network BUS to build network, can remotely monitor, also can field adjustable, it is ensured that the height reliability of communication and stability.
Description
Technical field
This utility model relates to a kind of excitation con-trol technology, particularly to a kind of intelligent digital excitation control system.
Background technology
In synchronous generator electricity generation system, excitation control system is the core of its stable operation and power supply, and it is by right
The monitoring of parameters of electric power system, controls exerting oneself of generating set, thus decides the quality height of the sent electric energy of generating set.
At present, field regulator can be divided into semiconductor-type and microcomputer type.But it is as Power Electronic Technique and large scale integrated circuit
Development, the most not competent work of semiconductor-type field regulator, it is desirable to provide a kind of logical operation capability is higher, and performance is higher
With more reliable stable field regulator.
Utility model content
The purpose of this utility model be to provide a kind of regulate accurately, intelligent digital excitation control system that precision is high.
A kind of intelligent digital excitation control system, it includes signal conversion unit, A/D converter, level translator, number
Word signal processor, D/A converter, low pass filter, pulse width modulation circuit, signal amplification circuit, power switching electricity
Road, main power source, stand-by power supply, quartz oscillator, Controller Area Network BUS, remotely monitor host computer, depositor, asynchronous
Serial line interface and field adjustable notebook；
Described signal conversion unit includes transformator and current transformer；
The signal of telecommunication of input is carried out the conversion of voltage and current by signal conversion unit, is converted to number through A/D converter
Word signal, then be analyzed to digital signal processor through level translator transmission and process；Through digital signal processor analysis,
Digital signal after process is transformed to analogue signal, then the filtering of low-pass filtered device by D/A converter, via pulse width
Modulation circuit obtains the pulse that amplitude is equal, obtains reliable and stable signal output finally by signal amplification circuit；
Described power switching circuit is connected with main power source, stand-by power supply and digital signal processor respectively；When main electricity
Source power-off, it is that digital signal processor is powered that power switching circuit automatically switches to stand-by power supply；
Described quartz oscillator provides the frequency of clock sampling for digital signal processor；
Described digital signal processor is also connected with Controller Area Network BUS, depositor and Asynchronous Serial Interface；
Described Controller Area Network BUS is also connected with remotely monitoring host computer；Described Asynchronous Serial Interface also with scene
Debugging notebook is connected.
Use after said structure, this utility model the most advantageously: this utility model structure
Simply, make full use of the operational capability of digital signal processor, make digital signal processor be fused into other functional modules
The entirety of machine, decreases resource loss, shortens the control cycle, improves control accuracy；Further, Controller Area Network BUS structure is used
Establishing network, can remotely monitor, also can field adjustable, it is ensured that the height reliability of communication and stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of control terminal of the present utility model.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
With reference to Fig. 1, the utility model discloses a kind of intelligent digital excitation control system, it include signal conversion unit,
A/D converter, level translator, digital signal processor, D/A converter, low pass filter, pulse width modulation electricity
Road, signal amplification circuit, power switching circuit, main power source, stand-by power supply, quartz oscillator, Controller Area Network BUS,
Remotely monitor host computer, depositor, Asynchronous Serial Interface and field adjustable notebook；
Described signal conversion unit includes transformator and current transformer；
The signal of telecommunication of input is carried out the conversion of voltage and current by signal conversion unit, is converted to number through A/D converter
Word signal, then be analyzed to digital signal processor through level translator transmission and process；Through digital signal processor analysis,
Digital signal after process is transformed to analogue signal, then the filtering of low-pass filtered device by D/A converter, via pulse width
Modulation circuit obtains the pulse that amplitude is equal, obtains reliable and stable signal output finally by signal amplification circuit；
Described power switching circuit is connected with main power source, stand-by power supply and digital signal processor respectively；When main electricity
Source power-off, it is that digital signal processor is powered that power switching circuit automatically switches to stand-by power supply；
Described quartz oscillator provides the frequency of clock sampling for digital signal processor；
Described digital signal processor is also connected with Controller Area Network BUS, depositor and Asynchronous Serial Interface；
Described Controller Area Network BUS is also connected with remotely monitoring host computer；Described Asynchronous Serial Interface also with scene
Debugging notebook is connected.
As it is shown in figure 1, this utility model is with digital signal processor as core, outside includes multiple module.The work of system
As principle it is: the voltage of Stator outfan, electric current are input to A/D converter through transformator and current transformer, output
The digital signal of one 5 one+5 V is transformed to the signal of 0 3.3V to level translator, supplies digital signal processor.Numeral letter
Number processor to the result of sampling according to controlling parameter, working method, restriction protective condition are controlled algorithm computing, tied
After Guo, output pwm signal.It addition, digital signal processor can also be carried out with the host computer of field adjustable notebook or monitoring
Communication, exchanges data.
This utility model is not limited to above-mentioned preferred forms, and anyone should learn under enlightenment of the present utility model
The structure change made, every have same or like technical scheme in this utility model, each falls within of the present utility model
Protection domain.
Claims (1)
1. an intelligent digital excitation control system, it is characterised in that: it includes signal conversion unit, A/D converter, level
Transducer, digital signal processor, D/A converter, low pass filter, pulse width modulation circuit, signal amplification circuit, confession
Electrical switching circuit, main power source, stand-by power supply, quartz oscillator, Controller Area Network BUS, remotely monitor host computer, post
Storage, Asynchronous Serial Interface and field adjustable notebook；
Described signal conversion unit includes transformator and current transformer；
The signal of telecommunication of input is carried out the conversion of voltage and current by signal conversion unit, is converted to numeral letter through A/D converter
Number, then be analyzed to digital signal processor through level translator transmission and process；Through digital signal processor analysis, process
After digital signal be transformed to analogue signal, then the filtering of low-pass filtered device by D/A converter, via pulse width modulation
Circuit obtains the pulse that amplitude is equal, obtains reliable and stable signal output finally by signal amplification circuit；
Described power switching circuit is connected with main power source, stand-by power supply and digital signal processor respectively；When main power source breaks
Electricity, it is that digital signal processor is powered that power switching circuit automatically switches to stand-by power supply；
Described quartz oscillator provides the frequency of clock sampling for digital signal processor；
Described digital signal processor is also connected with Controller Area Network BUS, depositor and Asynchronous Serial Interface；
Described Controller Area Network BUS is also connected with remotely monitoring host computer；Described Asynchronous Serial Interface also with field adjustable
Notebook is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698218.3U CN205754094U (en) | 2016-07-05 | 2016-07-05 | A kind of intelligent digital excitation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698218.3U CN205754094U (en) | 2016-07-05 | 2016-07-05 | A kind of intelligent digital excitation control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754094U true CN205754094U (en) | 2016-11-30 |
Family
ID=57381185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620698218.3U Expired - Fee Related CN205754094U (en) | 2016-07-05 | 2016-07-05 | A kind of intelligent digital excitation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205754094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788020A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of exciter control system |
-
2016
- 2016-07-05 CN CN201620698218.3U patent/CN205754094U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788020A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of exciter control system |
| CN106788020B (en) * | 2016-12-14 | 2019-05-28 | 四川德胜集团钒钛有限公司 | A kind of exciter control system |
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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: 20161130 Termination date: 20180705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |