CN204269807U - A kind of calibrating installation based on discrete synchronizing power source - Google Patents
A kind of calibrating installation based on discrete synchronizing power source Download PDFInfo
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- CN204269807U CN204269807U CN201420792855.8U CN201420792855U CN204269807U CN 204269807 U CN204269807 U CN 204269807U CN 201420792855 U CN201420792855 U CN 201420792855U CN 204269807 U CN204269807 U CN 204269807U
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- 238000009434 installation Methods 0.000 title claims abstract description 14
- 230000005611 electricity Effects 0.000 claims abstract description 51
- 238000005070 sampling Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of calibrating installation based on discrete synchronizing power source, two discrete synchronizing power source analog electrical minor mutual inductors export phase locked analog voltage or analog current; Voltage MU and electric current MU carries out digitized sampling to analog voltage or analog current respectively, and exports after sampled value is encapsulated as IEC61850-9-2 protocol massages; Digital electricity meter tester receives IEC61850-9-2 protocol massages, and analyzes the digitized voltage and current value that carry in message, draws the analysis result of power and power factor.Receive the output pulses that digital electricity meter exports, calibrating digital electricity meter simultaneously, thus indirectly examine and determine discrete synchronizing power source.Digital electricity meter receives IEC61850-9-2 protocol massages, and by the digitized voltage that carries in message and current value, calculates power.
Description
Technical field
The utility model relates to a kind of calibrating installation based on discrete synchronizing power source.
Background technology
In traditional intelligent substation transformation process, adopt and carry out method for digitizing at secondary side traditional transformer station is transformed.Transformer station in existing transformation generally uses routine transformer making alive MU(voltage merge cells) or electric current MU(electric current merge cells) mode, make voltage and current signal carry out digitizing conversion in source, thus realize promoting traditional intelligent substation level.The shortcoming that this pair of MU on-site proving method mainly exists is: if voltage MU and electric current MU distance relatively far apart, there is wiring difficulty during on-site proving, be difficult to be wired to another MU Wiring port from one end of power source.
Utility model content
For solving two MU on-site proving Problems existing at present, the utility model provides a kind of calibrating installation based on discrete synchronizing power source, be respectively voltage MU apart from each other or electric current MU by discrete synchronizing power source and analog voltage or analog current are provided, solve the on-site proving problem of voltage MU relatively far apart and electric current MU.
For achieving the above object, concrete scheme of the present utility model is as follows:
A kind of calibrating installation based on discrete synchronizing power source, comprise the first discrete synchronizing power source, second discrete synchronizing power source, voltage MU, electric current MU, digital electricity meter tester and digital electricity meter, wherein, described first discrete synchronizing power source, second discrete synchronizing power source is output voltage signal and current signal respectively, voltage MU is connected with the first discrete synchronizing power source, for gathering the voltage signal of output, and be converted into the message meeting IEC61850-9-2 agreement, electric current MU is connected with the second discrete synchronizing power source, for gathering the current signal of output, and be converted into the message meeting IEC61850-9-2 agreement, the output terminal of voltage MU and electric current MU by switch respectively with digital electricity meter tester, digital electricity meter is connected, rated output and power factor (PF) value after described digital electricity meter reception IEC61850-9-2 protocol massages, rated output and power factor (PF) value after described digital electricity meter tester reception IEC61850-9-2 protocol massages.
As preferably, described digital electricity meter is connected with digital electricity meter tester, for digital electricity meter tester output power frequency pulse.
As preferably, described first discrete synchronizing power source, the second discrete synchronizing power source are all built-in with GPS synchronization module, exporting independent and the voltage analog signal that phase place is relevant and current analog signal by being connected to controller on two power sources, realizing the object of the output of imitating substation electronic mutual inductor.
The above-mentioned principle of work based on discrete synchronizing power source calibrating installation: 1) described first discrete synchronizing power source, the second discrete synchronizing power source are undertaken synchronously by built-in GPS synchronization module, export independent and the voltage analog signal that phase place is relevant and current analog signal respectively, realize the object of the output of imitating substation electronic mutual inductor, 2) voltage MU gathers the voltage signal that the first discrete synchronizing power source exports, and the voltage signal digitizing sampled, be converted into the message meeting IEC61850-9-2 agreement simultaneously, then send to digital electricity meter tester and digital electricity meter by switch, simultaneously, electric current MU gathers the current signal that the second discrete synchronizing power source exports, and the current signal digitizing sampled, be converted into the message meeting IEC61850-9-2 agreement simultaneously, then send to digital electricity meter tester and digital electricity meter by switch, 3), after digital electricity meter receives the IEC61850-9-2 protocol massages of voltage MU, electric current MU transmission, according to the digitized magnitude of voltage carried in IEC61850-9-2 protocol massages and current value, power and power factor is calculated, 4) digital electricity meter tester receives voltage MU, after the IEC61850-9-2 protocol massages that electric current MU sends, according to the digitized magnitude of voltage carried in IEC61850-9-2 protocol massages and current value, calculate power and power factor value, thus calibrating obtains the first discrete synchronizing power source, whether the voltage and current signal amplitude that the second discrete synchronizing power source exports is accurate, whether phase place is synchronous, digital electricity meter tester receives the power-frequency pulse that digital electricity meter exports simultaneously, indirectly examine and determine while calibrating digital electricity meter and obtain the first discrete synchronizing power source, whether the voltage and current signal amplitude that the second discrete synchronizing power source exports is accurate, whether phase place is synchronous.
Discrete synchronizing power source described in the utility model calibrating installation, be respectively voltage MU apart from each other or electric current MU by 2 discrete synchronizing power sources and analog voltage or analog current are provided, the analysis power simultaneously had by digital electricity meter tester and the function of power factor are examined and determine the voltage and current signal that discrete synchronizing power source exports and whether are met specification, and then realize the detection of voltage MU and electric current MU, for the traditional intelligent substationization transformation on-site proving scheme meeting this kind of situation provides reference.
Accompanying drawing explanation
Fig. 1 is the discrete synchronizing power source calibrating installation structured flowchart of the present embodiment.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, a kind of calibrating installation based on discrete synchronizing power source, comprise the first discrete synchronizing power source 1, second discrete synchronizing power source 2, voltage MU3, electric current MU4, digital electricity meter tester 5 and digital electricity meter 6, wherein, described first discrete synchronizing power source 1, second discrete synchronizing power source 2 is output voltage signal and current signal respectively, voltage MU3 is connected with the first discrete synchronizing power source 1, for gathering the voltage signal of output, and be converted into the message meeting IEC61850-9-2 agreement, electric current MU4 is connected with the second discrete synchronizing power source 2, for gathering the current signal of output, and be converted into the message meeting IEC61850-9-2 agreement, the output terminal of voltage MU2 and electric current MU3 by switch 7 respectively with digital electricity meter tester 5, digital electricity meter 6 is connected, described digital electricity meter 6 receives rated output and power factor (PF) value after IEC61850-9-2 protocol massages, described digital electricity meter 6 is connected with digital electricity meter tester 5 further, for to digital electricity meter tester 5 output power frequency pulse.Described digital electricity meter tester 5 receives rated output and power factor (PF) value after IEC61850-9-2 protocol massages.
In the present embodiment, described first discrete synchronizing power source, discrete synchronizing power source 1, second 2 is all built-in with GPS synchronization module, export independent and the voltage analog signal that phase place is relevant and current analog signal, realize the object of the output of imitating substation electronic mutual inductor.The synchronous GPS synchronization module of phase place realizes, and synchronization accuracy reaches in 1 microsecond.
The principle of work of above-mentioned discrete synchronizing power source calibrating installation:
1) described first discrete synchronizing power source, discrete synchronizing power source 1, second 2 is undertaken synchronously by built-in GPS synchronization module, export independent and the voltage analog signal that phase place is relevant and current analog signal respectively, realize the object of the output of imitating substation electronic mutual inductor;
2) voltage MU3 gathers the voltage signal that the first discrete synchronizing power source 1 exports, and the voltage signal digitizing sampled, be converted into the message meeting IEC61850-9-2 agreement simultaneously, then send to digital electricity meter tester 5 and digital electricity meter 6 by switch; Simultaneously, electric current MU4 gathers the current signal that the second discrete synchronizing power source 2 exports, and the current signal digitizing sampled, be converted into the message meeting IEC61850-9-2 agreement simultaneously, then send to digital electricity meter tester 5 and digital electricity meter 6 by switch;
3) after digital electricity meter 6 receives the IEC61850-9-2 protocol massages of voltage MU3, electric current MU4 transmission, according to the digitized magnitude of voltage carried in IEC61850-9-2 protocol massages and current value, calculate power and power factor, digital electricity meter tester 3 is to output power pulse simultaneously;
4) digital electricity meter tester 5 receives voltage MU3, after the IEC61850-9-2 protocol massages that electric current MU4 sends, according to the digitized magnitude of voltage carried in IEC61850-9-2 protocol massages and current value, calculate power and power factor value, thus calibrating obtains the first discrete synchronizing power source, whether the voltage and current signal amplitude that the second discrete synchronizing power source exports is accurate, whether phase place is synchronous, digital electricity meter tester 5 receives the power-frequency pulse that digital electricity meter exports simultaneously, indirectly examine and determine while calibrating digital electricity meter 6 and obtain the first discrete synchronizing power source 1, whether the voltage and current signal amplitude that the second discrete synchronizing power source 2 exports is accurate, whether phase place is synchronous, and then realize the detection of voltage MU3 and electric current MU4.
According to foregoing of the present utility model; embodiment of the present utility model is not limited thereto; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; the utility model can also make other forms of amendment, replacement or change, all drops within the utility model rights protection scope.
Claims (3)
1. the calibrating installation based on discrete synchronizing power source, it is characterized in that: comprise the first discrete synchronizing power source, second discrete synchronizing power source, voltage MU, electric current MU, digital electricity meter tester and digital electricity meter, wherein, described first discrete synchronizing power source, second discrete synchronizing power source is output voltage signal and current signal respectively, voltage MU is connected with the first discrete synchronizing power source, for gathering the voltage signal of output, and be converted into the message meeting IEC61850-9-2 agreement, electric current MU is connected with the second discrete synchronizing power source, for gathering the current signal of output, and be converted into the message meeting IEC61850-9-2 agreement, the output terminal of voltage MU and electric current MU by switch respectively with digital electricity meter tester, digital electricity meter is connected, rated output and power factor (PF) value after described digital electricity meter reception IEC61850-9-2 protocol massages, rated output and power factor (PF) value after described digital electricity meter tester reception IEC61850-9-2 protocol massages.
2. a kind of calibrating installation based on discrete synchronizing power source as claimed in claim 1, is characterized in that: described digital electricity meter is connected with digital electricity meter tester, for digital electricity meter tester output power frequency pulse.
3. a kind of calibrating installation based on discrete synchronizing power source as claimed in claim 1, it is characterized in that: described first discrete synchronizing power source, the second discrete synchronizing power source are all built-in with GPS synchronization module, exporting independent and the voltage analog signal that phase place is relevant and current analog signal by being connected to controller on two power sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420792855.8U CN204269807U (en) | 2014-12-16 | 2014-12-16 | A kind of calibrating installation based on discrete synchronizing power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420792855.8U CN204269807U (en) | 2014-12-16 | 2014-12-16 | A kind of calibrating installation based on discrete synchronizing power source |
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| CN204269807U true CN204269807U (en) | 2015-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407316A (en) * | 2014-12-16 | 2015-03-11 | 国家电网公司 | Calibrating device and calibrating method based on discrete synchronous power sources |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407316A (en) * | 2014-12-16 | 2015-03-11 | 国家电网公司 | Calibrating device and calibrating method based on discrete synchronous power sources |
| CN104407316B (en) * | 2014-12-16 | 2017-05-03 | 国家电网公司 | Calibrating device and calibrating method based on discrete synchronous power sources |
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| 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: 20150415 Termination date: 20201216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |