CN202353209U - Quality of electric energy disturbance signal automatic classification device - Google Patents
Quality of electric energy disturbance signal automatic classification device Download PDFInfo
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- CN202353209U CN202353209U CN2011205362481U CN201120536248U CN202353209U CN 202353209 U CN202353209 U CN 202353209U CN 2011205362481 U CN2011205362481 U CN 2011205362481U CN 201120536248 U CN201120536248 U CN 201120536248U CN 202353209 U CN202353209 U CN 202353209U
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Abstract
The utility model discloses a quality of electric energy disturbance signal automatic classification device suitable for classification of different quality of electric disturbance signals, and is characterized by comprising a DSP(Digital Signal Processor), a judgment and separation interface circuit connected with the DSP, wherein the data acquiring circuit is connected with an A/D sampling chip and the DSP via a modulation circuit; a power grid comprises a voltage signal and a current signal of a quality of electric energy disturbance signal which is transmitted to the data acquiring circuit and changed into an AC voltage signal, transmitted to the A/D sampling chip for sampling storage and A/D conversion via the modulation circuit, is transmitted to the DSP for characteristic vector analysis and extraction process, and further is transmitted to the judgment and separation interface circuit for judgment, and separating and outputting. The utility model classifies the quality of electric energy disturbance signal since a time-frequency distribution theory is utilized to extract the characteristic vector, so that the classification of the quality of electric energy disturbance is accurate, the data processing speed is high and the practicability is strong.
Description
Technical field
The utility model relates to communication technical field, specifically realizes automatic a kind of electrical energy power quality disturbance signal apparatus for automatically sorting that the electrical energy power quality disturbance signal is classified through hardware device.
Background technology
In recent years, power quality problem receives people's attention day by day, supply the electricity consumption both sides to the quality of power supply require increasingly high.In the electric power system; Fault, dynamic operation or nonlinear-load often cause various electrical energy power quality disturbances (PQD); These power quality problems have brought very big harm for the normal operation based on the automatic control equipment of microcomputer, and this just means that the improvement research for the quality of power supply is quite important and necessary.
In order to improve the quality of power supply, make green energy, need in time to understand electrical network quality of power supply situation, study this objective phenomenon better, need carry out sort research to disturbance.Because its wave character of different classes of disturbance has nothing in common with each other, be difficult to these disturbance waveform are implemented accurately to detect, be not easy to the Disturbance Detection algorithm design; And disturbance classification is helped the research of various detection algorithms, and to the disturbance classification, help to become rambling disturbing signal and be useful quality of power supply information, therefore just be difficult to fault discerned and decide.Thereby, be not easy to the quality of power supply is administered research.
Summary of the invention
The purpose of the utility model provides a kind of electrical energy power quality disturbance signal apparatus for automatically sorting that is applicable to different electrical energy power quality disturbance signal classification.
The utility model is to adopt following technical scheme to realize its goal of the invention; A kind of electrical energy power quality disturbance signal apparatus for automatically sorting; The differentiation separation interface circuit that it comprises dsp processor, is connected with dsp processor, data acquisition circuit is connected with dsp processor through the A/D sampling A through modulate circuit; Contain electrical energy power quality disturbance voltage of signals signal in the electrical network, current signal is sent into data acquisition circuit and is transformed into ac voltage signal; Sending into the A/D sampling A through modulate circuit again samples after maintenance, the analog-to-digital conversion; Send into dsp processor and carry out the characteristic vector analysis and extract to handle, send into then and differentiate the separation interface circuit and differentiate and separate output.
The utility model is for the ease of controlling and enquiry of historical data, and described dsp processor is connected with memory, keyboard and display circuit, and the data after dsp processor is handled are sent into memory and stored; The command signal that keyboard and display circuit send is called historical data in the memory through dsp processor and is fed back in keyboard and display circuit and show.
The utility model is for the ease of the transmission of information, and described dsp processor is circumscribed with the communication interface circuit that is used for telecommunication.
Owing to adopt technique scheme; The utility model has been realized goal of the invention preferably, and it utilizes the time-frequency distributions theory to extract characteristic vector, thereby the electrical energy power quality disturbance signal is classified; So data processing speed is fast, practical to the classification of electrical energy power quality disturbance signal accurately.
Description of drawings
Fig. 1 is the structural principle schematic block diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Can know by Fig. 1; A kind of electrical energy power quality disturbance signal apparatus for automatically sorting; It comprises that (dsp processor that present embodiment uses adopts the 32 bit DSP chip TMS320LF2407As of model as TI company to dsp processor; Data acquisition circuit adopts the nuclear of the MAX125 type transducer of Maxim company as signal gathering unit), the differentiation separation interface circuit that is connected with dsp processor, data acquisition circuit passes through modulate circuit and is connected with dsp processor through the A/D sampling A; The control data Acquisition Circuit will by electrical network obtain contain electrical energy power quality disturbance voltage of signals signal, current signal be transformed into scope-5V～+ ac voltage signal of 5V; Sending into sampling A A/D through modulate circuit again samples after maintenance, the analog-to-digital conversion; Send into the dsp processor characteristic vector through data/address bus and extract, send into then and differentiate the separation interface circuit and differentiate and separate output.
The utility model is for the ease of controlling and enquiry of historical data, and described dsp processor is connected with memory, keyboard and display circuit, and the data after dsp processor is handled are sent into memory and stored; The command signal that keyboard and display circuit send is called historical data in the memory through dsp processor and is fed back in keyboard and display circuit and show.
The utility model is convenient to the transmission of information for realizing remote monitoring, and described dsp processor is circumscribed with the communication interface circuit that is used for telecommunication.
The utility model is expanded for ease, also can be equipped with multiple functional peripheral interface simultaneously.
In time understand electrical network quality of power supply situation; Can study this objective phenomenon better; Sort research is carried out in disturbance: on the one hand, be convenient to failure diagnosis and location, the fault that different components and parts, diverse location take place in the electrical network; Possibly show as different classes of disturbance, can come fault is carried out identification positioning according to existing disturbance type in the electrical network conversely; On the other hand, be convenient to the Disturbance Detection algorithm design, its wave character of different classes of disturbance has nothing in common with each other; For these disturbance waveform are implemented accurately to detect; Need take the various signals handling implement, thereby, the disturbance classification is helped the research of various detection algorithms; To the disturbance classification, help to become rambling disturbing signal and be useful quality of power supply information.And then can improve the quality of power supply, produce green energy.
Claims (3)
1. an electrical energy power quality disturbance signal apparatus for automatically sorting is characterized in that the differentiation separation interface circuit that it comprises dsp processor, is connected with dsp processor, and data acquisition circuit is connected with dsp processor through the A/D sampling A through modulate circuit; Contain electrical energy power quality disturbance voltage of signals signal in the electrical network, current signal is sent into data acquisition circuit and is transformed into ac voltage signal; Sending into the A/D sampling A through modulate circuit again samples after maintenance, the analog-to-digital conversion; Send into dsp processor and carry out the characteristic vector analysis and extract to handle, send into then and differentiate the separation interface circuit and differentiate and separate output.
2. electrical energy power quality disturbance signal apparatus for automatically sorting according to claim 1 is characterized in that described dsp processor is connected with memory, keyboard and display circuit, and the data after dsp processor is handled are sent into memory and stored; The command signal that keyboard and display circuit send is called historical data in the memory through dsp processor and is fed back in keyboard and display circuit and show.
3. electrical energy power quality disturbance signal apparatus for automatically sorting according to claim 1 and 2 is characterized in that described dsp processor is circumscribed with the communication interface circuit that is used for telecommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205362481U CN202353209U (en) | 2011-12-20 | 2011-12-20 | Quality of electric energy disturbance signal automatic classification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205362481U CN202353209U (en) | 2011-12-20 | 2011-12-20 | Quality of electric energy disturbance signal automatic classification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353209U true CN202353209U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205362481U Expired - Fee Related CN202353209U (en) | 2011-12-20 | 2011-12-20 | Quality of electric energy disturbance signal automatic classification device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202353209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919096A (en) * | 2017-03-31 | 2017-07-04 | 合肥民众亿兴软件开发有限公司 | A kind of data acquisition and multifunctional analysis system |
-
2011
- 2011-12-20 CN CN2011205362481U patent/CN202353209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919096A (en) * | 2017-03-31 | 2017-07-04 | 合肥民众亿兴软件开发有限公司 | A kind of data acquisition and multifunctional analysis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121220 |