CN105203156A - Electricity monitoring method for three-phase power source - Google Patents
Electricity monitoring method for three-phase power source Download PDFInfo
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- CN105203156A CN105203156A CN201510597031.4A CN201510597031A CN105203156A CN 105203156 A CN105203156 A CN 105203156A CN 201510597031 A CN201510597031 A CN 201510597031A CN 105203156 A CN105203156 A CN 105203156A
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Abstract
The invention discloses an electricity monitoring method for a three-phase power source. The electricity monitoring method includes the steps of data collecting, real-time analysis and treatment, data uploading and monitoring center analysis. Signals are comprehensively collected and analyzed in combination with all factors, data a minute earlier or later than an abnormal signal are extracted for reference, and a monitoring result is accurate; in the process of monitoring voltage, a capacitive voltage divider is adopted, voltage-withstanding strength is high, response frequency is high, data collection is accurate under normal conditions, and accurate data can also be collected in voltage abnormality caused by thunder and lightning.
Description
Technical field
The present invention relates to a kind of electric power monitoring method of three-phase supply.
Background technology
Power equipment has a wide range of applications in the every field of society, in order to ensure the safety by electric line, to electric line or also grid nodes to carry out electric power monitoring extremely important.
Three-phase supply tool in industrial power supply has a wide range of applications, and commercial power safety is extremely important, thus be sought after one can complete function, the monitoring method that efficiency is high.
Existing monitoring method is not comprehensive to the monitoring of signal, also just abnormal signal is analyzed when signal is analyzed, do not consider the impact of other environmental factors, also not to the data analysis within before and after this abnormal signal one minute, larger to Influence on test result.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of electric power monitoring method of three-phase supply is provided, comprehensive to signals collecting, analyze in conjunction with all factors during analysis, and the data extracted before and after abnormal signal within a minute enter reference, and monitoring result is accurate.
The object of the invention is to be achieved through the following technical solutions: a kind of electric power monitoring method of three-phase supply, comprises data collection steps S1, real-time analysis and treatment step S2, data upload step S3 and Surveillance center analytical procedure S4;
Described step S1 comprises following sub-step:
S11. front end monitoring equipment gathers the every signal in three-phase circuit;
S12. the signal collected is sent to intelligent electric power monitoring device by front end monitoring equipment.
Described step S2 comprises following sub-step:
S21. the real-time time by the signal received and Signal reception to be stored in memory block and to compare with the respective signal data that intelligent electric power monitoring device inside prestores by intelligent electric power monitoring device, judges that whether signal is normal:
(1) signal is normal, jumps to step S21 and compares in real time next time;
(2) signal is abnormal, and intelligent electric power monitoring device sends sound and light alarm, reminds staff to carry out emergency treatment, and the time that the abnormal signal of correspondence and this abnormal signal occur is sent to long-range Surveillance center;
Described data upload step S3 comprises following sub-step: the data in intelligent electric power monitoring device memory block are uploaded to Surveillance center by RS485 or internet every the set time by intelligent electric power monitoring apparatus;
Described Surveillance center analytical procedure S4 comprises following sub-step:
S41. the staff of Surveillance center checks abnormal signal and time of origin thereof, comprehensively analyzes in conjunction with the signal data of 1 minute before and after this time;
S42. the staff of Surveillance center provides solution according to analyzing the result obtained to this problem.
Every signal described in step S11 comprises current signal, voltage signal, temperature signal, arclight signal, moisture signal and network message data.
Described front end monitoring equipment comprises voltage monitoring equipment, current monitoring equipment, temperature monitoring equipment, Humidity Detection equipment, arclight checkout equipment and network message converging device; Described voltage monitoring equipment comprises voltage sample module and three capacitive dividers, and the voltage data acquisition method in described step S11 comprises following sub-step:
S111. one end of three capacitive dividers is connected respectively on A, B, C three-phase of three-phase circuit, the other end of three capacitive dividers is connected in voltage sample module simultaneously;
S112. voltage sample module samples the voltage signal of three capacitive dividers respectively;
S113. voltage sample module carries out signal amplification and filtering to sampling voltage data;
S114. process generation measurement data, i.e. voltage signal data are carried out in amplification and filtered data by voltage sample module, and voltage signal data is sent to intelligent electric power monitoring device.
When intelligent electric power monitoring apparatus and Surveillance center's abnormal signal carry out manual analysis, be all that binding signal data are comprehensively analyzed, to obtain analysis result more accurately.
The invention has the beneficial effects as follows: (1) is comprehensive to signals collecting, analyzes during analysis in conjunction with all factors, improve the accuracy analyzed.
(2) data extracted before and after abnormal signal within a minute enter reference, and monitoring result is accurate.
(3) in the process of monitoring voltage, have employed capacitive divider, its compressive resistance is large, and response frequency is high, and not only data acquisition is accurate under normal circumstances, in the electric voltage exception that thunder and lightning causes, equally can collect accurate data.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of electric power monitoring method of three-phase supply, comprises data collection steps S1, real-time analysis and treatment step S2, data upload step S3 and Surveillance center analytical procedure S4;
Described step S1 comprises following sub-step:
S11. front end monitoring equipment gathers the every signal in three-phase circuit;
S12. the signal collected is sent to intelligent electric power monitoring device by front end monitoring equipment.
Described step S2 comprises following sub-step:
S21. the real-time time by the signal received and Signal reception to be stored in memory block and to compare with the respective signal data that intelligent electric power monitoring device inside prestores by intelligent electric power monitoring device, judges that whether signal is normal:
(1) signal is normal, jumps to step S21 and compares in real time next time;
(2) signal is abnormal, and intelligent electric power monitoring device sends sound and light alarm, reminds staff to carry out emergency treatment, and the time that the abnormal signal of correspondence and this abnormal signal occur is sent to long-range Surveillance center;
Described data upload step S3 comprises following sub-step: the data in intelligent electric power monitoring device memory block are uploaded to Surveillance center by RS485 or internet every the set time by intelligent electric power monitoring apparatus;
Described Surveillance center analytical procedure S4 comprises following sub-step:
S41. the staff of Surveillance center checks abnormal signal and time of origin thereof, comprehensively analyzes in conjunction with the signal data of 1 minute before and after this time;
S42. the staff of Surveillance center provides solution according to analyzing the result obtained to this problem.
Every signal described in step S11 comprises current signal, voltage signal, temperature signal, arclight signal, moisture signal and network message data.
Described front end monitoring equipment comprises voltage monitoring equipment, current monitoring equipment, temperature monitoring equipment, Humidity Detection equipment, arclight checkout equipment and network message converging device; Described voltage monitoring equipment comprises voltage sample module and three capacitive dividers, and the voltage data acquisition method in described step S11 comprises following sub-step:
S111. one end of three capacitive dividers is connected respectively on A, B, C three-phase of three-phase circuit, the other end of three capacitive dividers is connected in voltage sample module simultaneously;
S112. voltage sample module samples the voltage signal of three capacitive dividers respectively;
S113. voltage sample module carries out signal amplification and filtering to sampling voltage data;
S114. process generation measurement data, i.e. voltage signal data are carried out in amplification and filtered data by voltage sample module, and voltage signal data is sent to intelligent electric power monitoring device.
When intelligent electric power monitoring apparatus and Surveillance center's abnormal signal carry out manual analysis, be all that binding signal data are comprehensively analyzed, to obtain analysis result more accurately.
Claims (4)
1. an electric power monitoring method for three-phase supply, is characterized in that: comprise data collection steps S1, real-time analysis and treatment step S2, data upload step S3 and Surveillance center analytical procedure S4;
Described step S1 comprises following sub-step:
S11. front end monitoring equipment gathers the every signal in three-phase circuit;
S12. the signal collected is sent to intelligent electric power monitoring device by front end monitoring equipment;
Described step S2 comprises following sub-step:
S21. the real-time time by the signal received and Signal reception to be stored in memory block and to compare with the respective signal data that intelligent electric power monitoring device inside prestores by intelligent electric power monitoring device, judges that whether signal is normal:
(1) signal is normal, jumps to step S21 and compares in real time next time;
(2) signal is abnormal, and intelligent electric power monitoring device sends sound and light alarm, reminds staff to carry out emergency treatment, and the time that the abnormal signal of correspondence and this abnormal signal occur is sent to long-range Surveillance center;
Described data upload step S3 comprises following sub-step: the data in intelligent electric power monitoring device memory block are uploaded to Surveillance center by RS485 or internet every the set time by intelligent electric power monitoring apparatus;
Described Surveillance center analytical procedure S4 comprises following sub-step:
S41. the staff of Surveillance center checks abnormal signal and time of origin thereof, comprehensively analyzes in conjunction with the signal data of 1 minute before and after this time;
S42. the staff of Surveillance center provides solution according to analyzing the result obtained to this problem.
2. the electric power monitoring method of a kind of three-phase supply according to claim 1, is characterized in that: the every signal described in step S11 comprises current signal, voltage signal, temperature signal, arclight signal, moisture signal and network message data.
3. the electric power monitoring method of a kind of three-phase supply according to claim 2, is characterized in that: described front end monitoring equipment comprises voltage monitoring equipment, current monitoring equipment, temperature monitoring equipment, Humidity Detection equipment, arclight checkout equipment and network message converging device; Described voltage monitoring equipment comprises voltage sample module and three capacitive dividers, and the voltage data acquisition method in described step S11 comprises following sub-step:
S111. one end of three capacitive dividers is connected respectively on A, B, C three-phase of three-phase circuit, the other end of three capacitive dividers is connected in voltage sample module simultaneously;
S112. voltage sample module samples the voltage signal of three capacitive dividers respectively;
S113. voltage sample module carries out signal amplification and filtering to sampling voltage data;
S114. process generation measurement data, i.e. voltage signal data are carried out in amplification and filtered data by voltage sample module, and voltage signal data is sent to intelligent electric power monitoring device.
4. the electric power monitoring method of a kind of three-phase supply according to claim 1, it is characterized in that: when intelligent electric power monitoring apparatus and Surveillance center's abnormal signal carry out manual analysis, all that binding signal data are comprehensively analyzed, to obtain analysis result more accurately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510597031.4A CN105203156A (en) | 2015-09-18 | 2015-09-18 | Electricity monitoring method for three-phase power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510597031.4A CN105203156A (en) | 2015-09-18 | 2015-09-18 | Electricity monitoring method for three-phase power source |
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| CN105203156A true CN105203156A (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888123A (en) * | 2017-03-14 | 2017-06-23 | 中国第汽车股份有限公司 | The monitoring method that a kind of CAN message is lost |
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| CN204086389U (en) * | 2014-08-28 | 2015-01-07 | 国家电网公司 | A kind of three-phase electricity monitoring device |
| CN204391695U (en) * | 2015-02-06 | 2015-06-10 | 成都工百利自动化设备有限公司 | A kind of early warning for box-type substation in electrical network and TT&C system |
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| CN203590247U (en) * | 2013-11-18 | 2014-05-07 | 成都比善科技开发有限公司 | Smart grid network message acquisition device |
| CN204008825U (en) * | 2014-06-30 | 2014-12-10 | 国家电网公司 | A kind of overvoltage protection device with warning function |
| CN204086389U (en) * | 2014-08-28 | 2015-01-07 | 国家电网公司 | A kind of three-phase electricity monitoring device |
| CN204030567U (en) * | 2014-08-29 | 2014-12-17 | 天津市鸿远电气股份有限公司 | For the protection device for arc faults of three-phase circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888123A (en) * | 2017-03-14 | 2017-06-23 | 中国第汽车股份有限公司 | The monitoring method that a kind of CAN message is lost |
| CN106888123B (en) * | 2017-03-14 | 2019-12-31 | 中国第一汽车股份有限公司 | CAN message loss monitoring method |
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Application publication date: 20151230 |