CN203149053U - Power quality monitoring system based on SOPC - Google Patents
Power quality monitoring system based on SOPC Download PDFInfo
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- CN203149053U CN203149053U CN 201320110455 CN201320110455U CN203149053U CN 203149053 U CN203149053 U CN 203149053U CN 201320110455 CN201320110455 CN 201320110455 CN 201320110455 U CN201320110455 U CN 201320110455U CN 203149053 U CN203149053 U CN 203149053U
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- sopc
- power quality
- monitoring system
- quality monitoring
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Abstract
The utility model provides a power quality monitoring system based on an SOPC. The power quality monitoring system comprises the SOPC. The SOPC is respectively connected with a Hall voltage sensor and a Hall current sensor through A/D data acquisition and reception modules and is respectively connected with a display module, a network module, a GPRS wireless module and an SD card information recording module. The power quality monitoring system based on the SOPC provided by the invention can acquire more accurate power quality parameter information on the condition of a stable state, is capable of realizing local storage of power quality parameters and transmitting the power quality parameters through a network and the GPRS wireless module and can simultaneously display the power quality parameters and the voltage and current waveforms and frequency spectra of an electrical network.
Description
Technical field
The utility model is a kind of based on SOPC electric energy quality monitoring system, is used for power network monitoring.
Background technology
Intelligent grid is the developing direction of electrical network, and China intends the year two thousand twenty and builds up strong intelligent grid.In the intelligent grid epoch, electric energy quality monitoring can allow power department in time obtain electric network state, and can and improve electrical network for management provides service.At present, a variety of power quality analyzers are arranged on the market, quality of power supply GB predetermined parameter such as quality preferably can analysis frequency, 2 ~ 50 subharmonic, imbalance of three-phase voltage degree, voltage deviation, voltage fundamental effective value and real effective, current first harmonics effective value and real effective, fundamental active power, reactive power, first-harmonic applied power, true power factor, adopting kernel such as DSP or ARM or CPLD and length is 2 integral number power point fft algorithm, adopt RS232 to change the RS485 communication, can store, show power quality parameter.Existing power quality analyzer haves much room for improvement in the following aspects: 1) how quicker, accurately obtain more higher hamonic waves, 2) increase on-line monitoring, the function that passes a parameter at a distance, 3) when showing power quality parameter, show line voltage, current waveform, frequency spectrum, 3 synchronously) other more valuable functions.
Summary of the invention
It is a kind of based on SOPC electric energy quality monitoring system that the utility model provides, and can obtain more accurate power quality parameter information under stable situation; Can locally store to reach by network, GPRS wireless module and transmit power quality parameter; Voltage, current waveform and the frequency spectrum that can show power quality parameter and electrical network simultaneously.
Above-mentioned purpose of the present utility model is to realize by such technical scheme: based on SOPC electric energy quality monitoring system, comprise SOPC, SOPC connects Hall voltage sensor, Hall current sensor by A/D data acquisition receiver module respectively, and described SOPC connects display module, mixed-media network modules mixed-media, GPRS wireless module, SD card information logging modle.
Described SOPC connects alarm module, and described alarm module is used for quality of power supply early warning.
Described SOPC is provided with spectrum analysis module.
Described display module comprises small size LCD, and large-scale LCD, described small size LCD are used for showing power quality parameter; Described large-scale LCD is used for showing power quality parameter and line voltage, current waveform and frequency spectrum.
Described supervisory system is provided with real time clock circuit.
The utility model is a kind of based on SOPC electric energy quality monitoring system, at the characteristics of mains frequency, has adopted a kind of new fft algorithm, can obtain more accurate power quality parameter information under stable situation; Can locally store to reach by network, GPRS and transmit power quality parameter; Voltage, current waveform and the frequency spectrum that can show power quality parameter and electrical network simultaneously.Voltage, current waveform and the frequency spectrum that can on large-scale LCD, show power quality parameter and electrical network simultaneously.
Description of drawings
Fig. 1 is the utility model supervisory system structured flowchart.
Fig. 2 is the computing module of SOPC electrical energy parameter described in the utility model synoptic diagram.
Fig. 3 is voltage described in the utility model, current parameters acquisition cuicuit figure.
Fig. 4 is real time clock circuit figure described in the utility model.
Embodiment
As shown in Figure 1, based on SOPC electric energy quality monitoring system, comprise SOPC, SOPC connects Hall voltage sensor, Hall current sensor by A/D data acquisition receiver module respectively, and described SOPC connects display module, mixed-media network modules mixed-media, GPRS wireless module, SD card information logging modle.Described SOPC connects alarm module, and described alarm module is used for quality of power supply early warning.Described SOPC is provided with spectrum analysis module.
Described display module comprises small size LCD, and large-scale LCD, described small size LCD are used for showing power quality parameter; Described large-scale LCD is used for showing power quality parameter and line voltage, current waveform and frequency spectrum.
Power quality analysis principle of the present utility model:
Electrical network → Hall voltage sensor, Hall current sensor → A/D data acquisition receiver module → SOPC → parameter storage and demonstration, voltage current waveform demonstration, network and long-distance transmissions power quality parameter, early warning.
In SOPC, utilize C, Verilog language to make up kernel and calculate power quality parameter, utilize small size LCD to show quality of power supply correlation parameter, utilize large-scale LCD can show quality of power supply correlation parameter and line voltage, current waveform and frequency spectrum, can be in time to host computer electric energy transmitting mass parameter by network, utilize GPRS wireless module remote transmission power quality parameter, utilize SD card storage of electrical energy mass parameter, possess quality of power supply warning function.
As shown in Figure 2, the module that is used for calculating relevant power quality parameter that designs among the SOPC.In SOPC, receive voltage, electric current A/D sampling result afterwards, according to formula calculating voltage, current effective value, and respectively voltage, electric current A/D value are carried out FFT and calculate, calculate other correlation parameters according to FFT result again, then output.
As shown in Figure 4, real time clock circuit can satisfy the accuracy of system time, in the device with this time to the file designation in the file system, be convenient to the user and check that certain determines quality of power supply constantly.
Software section of the present utility model realizes 4 main task schedulings being arranged: the task of (1) digital signal processing and data recording in SOPC.(2) LCD shows the task of time, supports the button timing simultaneously.(3) ICP/IP protocol stack.(4) related data is sent VGA show.When the response user asked, at first Information Monitoring was given the ICP/IP protocol stack value of information then, delivered to the Internet user interface from the ICP/IP protocol stack at last and showed.The task scheduling form is as follows:
Task is 1.: FFT calculating → task 2.: real-time clock obtains → task 3.: SD card storage → task 4.: INTERNET → task 5.: parameter and waveform demonstration → task 1.: FFT calculates.
Spectrum analysis module: FFT counts 400, and sample frequency is 20KHz, and the optional 25Hz of frequency interval or 50Hz can analyze 100 subharmonic.What 400 FFT here adopted is a kind of algorithm based on L * 10M point DFT.
SDCard information logging modle: power quality parameter of this module per minute record.
GPRS wireless module: for convenience of the remote monitor electric network information, added the GPRS module and be used for sending power quality parameter to the PC terminal, with SD card local record message complementary sense.
Claims (4)
1. based on SOPC electric energy quality monitoring system, comprise SOPC, it is characterized in that SOPC connects Hall voltage sensor, Hall current sensor by A/D data acquisition receiver module respectively, described SOPC connects display module, mixed-media network modules mixed-media, GPRS wireless module, SD card information logging modle.
2. it is characterized in that based on SOPC electric energy quality monitoring system according to claim 1 is described that described SOPC connects alarm module, described alarm module is used for quality of power supply early warning.
3. it is characterized in that based on SOPC electric energy quality monitoring system that according to claim 1 is described described display module comprises small size LCD, large-scale LCD, described small size LCD are used for showing power quality parameter; Described large-scale LCD is used for showing power quality parameter and line voltage, current waveform and frequency spectrum.
4. it is characterized in that based on SOPC electric energy quality monitoring system that according to claim 1 is described described supervisory system is provided with real time clock circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110455 CN203149053U (en) | 2013-03-12 | 2013-03-12 | Power quality monitoring system based on SOPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110455 CN203149053U (en) | 2013-03-12 | 2013-03-12 | Power quality monitoring system based on SOPC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149053U true CN203149053U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110455 Expired - Fee Related CN203149053U (en) | 2013-03-12 | 2013-03-12 | Power quality monitoring system based on SOPC |
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| Country | Link |
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| CN (1) | CN203149053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219708A1 (en) * | 2016-06-22 | 2017-12-28 | 广州致远电子股份有限公司 | Power analysis method and device |
-
2013
- 2013-03-12 CN CN 201320110455 patent/CN203149053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219708A1 (en) * | 2016-06-22 | 2017-12-28 | 广州致远电子股份有限公司 | Power analysis method and device |
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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: 20130821 Termination date: 20140312 |