CN109725281A - A kind of long-range source tracing method of digitalized electrical energy meter based on quantum techniques and system - Google Patents

A kind of long-range source tracing method of digitalized electrical energy meter based on quantum techniques and system Download PDF

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Publication number
CN109725281A
CN109725281A CN201910048861.XA CN201910048861A CN109725281A CN 109725281 A CN109725281 A CN 109725281A CN 201910048861 A CN201910048861 A CN 201910048861A CN 109725281 A CN109725281 A CN 109725281A
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China
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electric energy
standard
data
electricity
source
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CN201910048861.XA
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Chinese (zh)
Inventor
徐晴
王磊
贾正森
段梅梅
赵双双
穆小星
程含渺
田正其
祝宇楠
龚丹
周超
夏国芳
欧阳曾恺
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国网江苏省电力有限公司电力科学研究院
国家电网有限公司
中国计量科学研究院
国网江苏省电力有限公司
江苏省电力试验研究院有限公司
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Priority to CN201910048861.XA priority Critical patent/CN109725281A/en
Publication of CN109725281A publication Critical patent/CN109725281A/en

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Abstract

The present invention discloses a kind of long-range source tracing method of digitalized electric energy standard scale and system based on quantum techniques, and method includes: the standard energy data for obtaining predetermined power source and generating after exchange quantum voltage is traced to the source;The standard energy data that will acquire is sent to the metered clients including measured number electric energy meter by communication network;It obtains measured number electric energy meter in metered clients and responds the standard energy data, the electric energy detection result data exported;Electricity comparison is carried out based on the standard energy data and the electric energy detection result data, calculates electricity error between the two, the as measurement error of measured number electric energy meter.The present invention realizes remotely tracing to the source to digitalized electrical energy meter, high efficient and reliable of tracing to the source can avoid remote inspection using the electric power signal after quantum voltage is traced to the source as standard electric power signal.

Description

A kind of long-range source tracing method of digitalized electrical energy meter based on quantum techniques and system

Technical field

It traces to the source detection technique the present invention relates to the digitalized electrical energy meter in metering field, it is especially a kind of to be based on quantum techniques The long-range source tracing method of digitalized electrical energy meter and system.

Background technique

In intelligent substation, electric energy metering device is by electronic mutual inductor, combining unit and digitlization power meter group At digitalized electric energy metering device.Wherein, electronic mutual inductor relationship according to a certain percentage, by the height electricity on transmission line of electricity Pressure, high current are converted to digital signal or simulation small-signal, and combining unit is as the acquisition of the electric parameters such as voltage, electric current and metering Between digital interface, the digital signal that multiple electronic mutual inductors are exported or simulation small-signal carry out the combination of time correlation, The digital signal combined value of IEC61850 agreement is transferred to in a manner of network communication the wall of substation again, that is, is digitized Electric energy meter completes electrical energy measurement by digitalized electrical energy meter.It can be seen that, digitalized electric energy different from conditional electronic formula electric energy meter Table can receive by network communication by distally transmit come digital voltage, current signal completion electrical energy measurement, this is by number Change the meter characteristic decision of electric energy meter, but at home and abroad there is no grind for the technology that digitalized electrical energy meter is remotely traced to the source at present Study carefully, the digitalized electric energy standard set-up of metrological service, junior, which is both needed to send to higher level metrological service, carries out magnitude tracing.

A few days ago, the International System of Units seriously goes through historic change, and the international basic unit in part can be exported by physical constant, base Also changing to quantization in the national electric energy standard set-up of thermoelectric (al) inversion principle.The invention of application number 2016112025564 Patent application discloses a kind of AC power difference measurement system and method based on quantum techniques, can be used for establishing AC power frequency Quantum power reference realizes that AC power is traced to the source.

Summary of the invention

It is an object of the present invention to provide a kind of long-range source tracing method of digitalized electric energy standard scale based on quantum techniques and it is System realizes remotely tracing back to digitalized electrical energy meter using the electric power signal after quantum voltage is traced to the source as standard electric power signal Source, high efficient and reliable of tracing to the source can avoid remote inspection.

The technical scheme adopted by the invention is as follows: a kind of long-range source tracing method of digitalized electric energy standard scale, comprising:

Obtain the standard energy data that predetermined power source generates after exchange quantum voltage is traced to the source;

The standard energy data that will acquire is sent to the metered clients including measured number electric energy meter by communication network;

It obtains measured number electric energy meter in metered clients and responds the standard energy data, the electric energy detection result exported Data;

Electricity comparison is carried out based on the standard energy data and the electric energy detection result data, calculates electricity between the two Error, the as measurement error of measured number electric energy meter.

It is real using quantization electric energy standard set-up the present invention is based on the meter characteristic that digitalized electrical energy meter input is digital quantity Existing digitalized electrical energy meter is remotely traced to the source, and can avoid remote inspection bring social cost loss.

The standard electric energy data packet includes the voltage data and current data after exchange quantum voltage is traced to the source.

Preferably, the predetermined power source is that can be controlled a variety of different output voltages of output, output electric current and power factor Combined simulated power source.Output voltage can be 220V/380V, and output electric current can be IN/0.5IN/0.1IN/0.05IN, and IN is The rated current of measured number electric energy meter, power factor can be 1.0/0.5L/0.8C.The output time in the simulated power source is long For degree so that measured number electric energy meter can issue subject to the electric energy detection result data pulse of setting quantity (m), pulse is a Number m is determined by vertification regulation or calibrating standard.

Preferably, the method for the present invention further include: the standard electric energy data that will acquire, which are converted to, meets IEC61850 agreement Data frame after, the data frame is encrypted, is then sent to by communication network including measured number electric energy The metered clients of table.The metering object of measured number electric energy standard scale is entrained by the IEC61850 data frame after decryption Energy information represents electric power detection result data to be verified to issue electrical energy pulse.

A kind of digitalized electric energy standard scale is remotely traced to the source device, comprising:

Standard electric energy data acquisition module, the standard electric energy generated after exchange quantum voltage is traced to the source for obtaining predetermined power source Data;

Data transmission module, the standard energy data for will acquire are sent to by communication network including measured numberization electricity The metered clients of energy table;

Electric energy detection structured data obtains module, responds the standard for obtaining measured number electric energy meter in metered clients Energy data, the electric energy detection result data exported;

And measurement error computing module, for carrying out electricity based on the standard energy data and the electric energy detection result data Amount comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.

For metrological service, the junior computer of metered clients, a kind of digitalized electric energy standard scale of the present invention is remotely traced to the source Method, comprising:

It traces to the source through exchanging quantum voltage in the predetermined power source that the output of higher level metrological service computer is remotely obtained by communication network The standard energy data generated afterwards;

The standard energy data that will acquire is sent to the electric energy acquisition end of measured number electric energy meter;

It obtains measured number electric energy meter and responds the standard energy data, the electric energy detection result data exported;

The electric energy detection result data that will acquire, by communication network transmission to higher level metrological service computer, so that higher level Metrological service's computer can carry out electricity comparison, meter based on the normal voltage current data and the electric energy detection result data Electricity error between the two is calculated, the measurement error of measured number electric energy meter is done.

Invention additionally discloses a kind of for generating the quantization electric energy standard set-up of standard energy data, including control list Member, exchange quantum voltage generating unit, simulated power source and A/D sampling unit;

Simulated power source under the control of the control unit, exports different voltage, electric current and power factor combination;

Exchange quantum voltage generation circuit under the control of the control unit, output exchange quantum voltage signal to simulated power source into Row is traced to the source, and standard electric power signal is obtained;

Control unit controls A/D sampling unit and carries out A/D sampling to the standard electric power signal, obtains standard energy data.

Further, quantization electric energy standard set-up of the present invention further includes electricity and error calculation unit, electricity and error The input terminal of computing unit is separately connected A/D sampling unit and external electric energy testing result output end, to obtain standard respectively Energy data and electric energy detection result data, and then Standard clectrical quantity and electricity to be verified are calculated based on the data got, and Error between Standard clectrical quantity and electricity to be verified.

Preferably, control unit control A/D sampling unit and electricity and error calculation unit is synchronous, when A/D sampling mould When block generates first sampled point, control unit control electricity and error calculation unit start to calculate Standard clectrical quantity.

Further, quantization electric energy standard set-up of the present invention further includes IEC61850 protocol packing unit, and control is single Member control IEC61850 protocol packing unit carries out the conversion for meeting IEC61850 protocol data frame and defeated to standard energy data Out.

This quantization electric energy standard set-up is provided simultaneously with the embodiment of protocol packing and electricity and error calculation unit Under, when remotely tracing to the source applied to digitalized electric energy standard scale, higher level metrological service computer can be only used for realizing the transmission of data, Otherwise, protocol packing and electricity and error function calculation are realized by higher level metrological service computer, and existing skill can be used respectively Art.

Invention additionally discloses a kind of digitalized electric energy standard scales using aforementioned quantization electric energy standard set-up remotely to trace to the source System, including quantization electric energy standard set-up, higher level metrological service computer, metrological service, junior computer and measured number Change electric energy meter;

Quantization electric energy standard set-up generates the standard energy data after exchange quantum voltage is traced to the source based on predetermined power source;

Quantization electric energy standard set-up or higher level metrological service computer, which are converted to standard electric energy data, meets IEC61850 association The data frame of view;

The IEC61850 data frame of standard energy data is sent to junior's meter by communication network by higher level metrological service computer Measuring mechanism computer;

The IEC61850 data frame of the standard energy data received is sent to measured number by metrological service, junior computer Electric energy meter, and obtain measured number electric energy meter and respond the standard energy data, the electric energy detection result data arteries and veins exported Punching, the electric energy detection result data pulse that then will acquire are sent to higher level metrological service computer by communication network;

Higher level metrological service computer or quantization electric energy standard set-up, based on the standard energy data and the electric energy detection Result data carries out electricity comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.

Preferably, quantization electric energy standard set-up includes IEC61850 protocol packing unit and electricity and error calculation list Member;

Standard energy data after exchange quantum voltage is traced to the source carries out data frame by the IEC61850 protocol packing unit and beats Bao Hou is forwarded to metrological service, junior computer by higher level metrological service computer;

Electricity and error calculation unit obtain standard energy data respectively from A/D sampling unit and higher level metrological service computer And corresponding electric energy detection result data, and Standard clectrical quantity and electricity to be verified and two are calculated based on the data got Electricity error between person.Under present embodiment, quantization electric energy standard set-up function is more complete, portable good.This reality It applies outside mode, IEC61850 protocol packing and electricity and error calculation can be realized by higher level metrological service computer, then measured Sonization electric energy standard set-up need to realize function of remotely tracing to the source with the higher level metrological service computer binding for having corresponding function.

Further, in order to ensure the checked object in whole experiment process is constant, present system further includes that monitoring is single Member;

Monitoring unit, quantization electric energy standard set-up, network trunk unit, higher level metrological service computer and junior's dosing machine Structure computer uses GPS clock as standard time clock;

Monitoring unit obtains the measured number electric energy meter associated monitoring image data of metered clients, and after covering timestamp, It is transmitted to higher level metrological service computer.Outdoor scene confirmation of tracing to the source can be achieved, it is ensured that reliability of tracing to the source.Monitoring can be used in monitoring unit The combination of camera and controller is realized, is the prior art.

Telenet is carried out by network trunk unit between higher level metrological service computer and metrological service, junior computer Network communication, with transmission standard energy data and electric energy detection result data.The decaying in signals transmission can be reduced, is improved Data reliability.

Beneficial effect

It is the meter characteristic of digital quantity that the present invention, which makes full use of digitalized electrical energy meter input, realizes remotely tracing back for digitalized electrical energy meter Source avoids remote inspection bring social cost loss, can reduce the partial uncertainty in transmission of quantity value link, improve Digitalized electrical energy meter is traced to the source detection efficiency, it is ensured that digitalized electric energy accurate measurement is reliable.Be conducive to digitalized electric energy metering Gao Zhun Exactness advantage continues to play, and facilitates the reform and innovation for pushing management through quantification mode, and release metering quantization is changed efficiency, protected Hinder and improves People's livelihood.

Detailed description of the invention

Fig. 1 show a kind of specific embodiment principle signal of the long-range traceability system of digitalized electric energy standard scale of the present invention Figure.

Specific embodiment

It is further described below in conjunction with the drawings and specific embodiments.

Embodiment 1

A kind of long-range source tracing method of digitalized electric energy standard scale, comprising:

Obtain the standard energy data that predetermined power source generates after exchange quantum voltage is traced to the source;

The standard energy data that will acquire is sent to the metered clients including measured number electric energy meter by communication network;

It obtains measured number electric energy meter in metered clients and responds the standard energy data, the electric energy detection result exported Data;

Electricity comparison is carried out based on the standard energy data and the electric energy detection result data, calculates electricity between the two Error, the as measurement error of measured number electric energy meter.

With reference to Fig. 1, the present embodiment is in use, method content corresponds to the function to be realized of higher level metrological service.

The predetermined power source is that can be controlled export a variety of different output voltages, export the mould that electric current is combined with power factor Quasi- power source.Output voltage can be 220V/380V, and output electric current can be IN/0.5IN/0.1IN/0.05IN, and IN is measured number Change the rated current of electric energy meter, power factor can be 1.0/0.5L/0.8C.The output time span in the simulated power source so that Measured number electric energy meter can issue subject to the electric energy detection result data pulse of setting quantity (m), and pulse number m is by examining and determine Regulation or calibrating standard determine.

The standard electric energy data packet includes the voltage data and current data after exchange quantum voltage is traced to the source.Consider number Change the input characteristics of electric energy meter, the standard electric energy data that the present embodiment will acquire are converted to the data for meeting IEC61850 agreement After frame, the transmission of standard energy data is carried out, subsequent digitation electric energy meter is also directed to corresponding data frame and carries out entrained electric energy Information metering.

In order to improve Information Security, the present embodiment is also encrypted the data frame after packing, then by logical Communication network is sent to the metered clients including measured number electric energy meter.Subsequent metrological service, junior computer to data frame into After row decryption, it is sent to measured number electric energy standard scale, the metering object of measured number electric energy standard scale is after decrypting Energy information entrained by IEC61850 data frame represents electric power detection result data to be verified to issue electrical energy pulse.

Embodiment 2

Corresponding with embodiment 1, the present embodiment is that a kind of digitalized electric energy standard scale is remotely traced to the source device, comprising:

Standard electric energy data acquisition module, the standard electric energy generated after exchange quantum voltage is traced to the source for obtaining predetermined power source Data;

Data transmission module, the standard energy data for will acquire are sent to by communication network including measured numberization electricity The metered clients of energy table;

Electric energy detection structured data obtains module, responds the standard for obtaining measured number electric energy meter in metered clients Energy data, the electric energy detection result data exported;

And measurement error computing module, for carrying out electricity based on the standard energy data and the electric energy detection result data Amount comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.

Embodiment 3

The long-range source tracing method of the present embodiment digitalized electric energy standard scale, comprising:

It traces to the source through exchanging quantum voltage in the predetermined power source that the output of higher level metrological service computer is remotely obtained by communication network The standard energy data generated afterwards;

The standard energy data that will acquire is sent to the electric energy acquisition end of measured number electric energy meter;

It obtains measured number electric energy meter and responds the standard energy data, the electric energy detection result data exported;

The electric energy detection result data that will acquire, by communication network transmission to higher level metrological service computer, so that higher level Metrological service's computer can carry out electricity comparison, meter based on the normal voltage current data and the electric energy detection result data Electricity error between the two is calculated, the measurement error of measured number electric energy meter is done.

With reference to Fig. 1, the present embodiment is in use, method content corresponds to the function to be realized of metrological service, junior.

Embodiment 4

Refering to what is shown in Fig. 1, the present embodiment is a kind of for generating the quantization electric energy mark of standard energy data described in embodiment 1-4 Standard apparatus, including control unit, exchange quantum voltage generating unit, simulated power source and A/D sampling unit;

Simulated power source under the control of the control unit, exports different voltage, electric current and power factor combination;

Exchange quantum voltage generation circuit under the control of the control unit, output exchange quantum voltage signal to simulated power source into Row is traced to the source, and standard electric power signal is obtained;

Control unit controls A/D sampling unit and carries out A/D sampling to the standard electric power signal, obtains standard energy data.

Quantization electric energy standard set-up further includes electricity and error calculation unit, the input terminal of electricity and error calculation unit It is separately connected A/D sampling unit and external electric energy testing result output end, to obtain standard energy data and electric energy inspection respectively Survey result data, so based on the data that get calculate Standard clectrical quantity and electricity to be verified and Standard clectrical quantity with it is to be verified Error between electricity.

Control unit controls the synchronous of A/D sampling unit and electricity and error calculation unit, when A/D sampling module generation the When one sampled point, control unit control electricity and error calculation unit start to calculate Standard clectrical quantity.

Quantization electric energy standard set-up further includes IEC61850 protocol packing unit, and control unit controls IEC61850 agreement Packaged unit carries out the conversion and the output that meet IEC61850 protocol data frame to standard energy data.

This quantization electric energy standard set-up is provided simultaneously with the embodiment of protocol packing and electricity and error calculation unit Under, when remotely tracing to the source applied to digitalized electric energy standard scale, higher level metrological service computer can be only used for realizing the transmission of data, Otherwise, protocol packing and electricity and error function calculation are realized by higher level metrological service computer, and existing skill can be used respectively Art.

Embodiment 5

With reference to Fig. 1, the present embodiment is a kind of digitalized electric energy standard scale of quantization electric energy standard set-up described in Application Example 4 Long-range traceability system, including quantization electric energy standard set-up, higher level metrological service computer, metrological service, junior computer and Measured number electric energy meter;

Quantization electric energy standard set-up generates the standard energy data after exchange quantum voltage is traced to the source based on predetermined power source;

Quantization electric energy standard set-up or higher level metrological service computer, which are converted to standard electric energy data, meets IEC61850 association The data frame of view;

The IEC61850 data frame of standard energy data is sent to junior's meter by communication network by higher level metrological service computer Measuring mechanism computer;

The IEC61850 data frame of the standard energy data received is sent to measured number by metrological service, junior computer Electric energy meter, and obtain measured number electric energy meter and respond the standard energy data, the electric energy detection result data arteries and veins exported Punching, the electric energy detection result data pulse that then will acquire are sent to higher level metrological service computer by communication network;

Higher level metrological service computer or quantization electric energy standard set-up, based on the standard energy data and the electric energy detection Result data carries out electricity comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.

Quantization electric energy standard set-up includes IEC61850 protocol packing unit and electricity and error calculation unit;

Standard energy data after exchange quantum voltage is traced to the source carries out data frame by the IEC61850 protocol packing unit and beats Bao Hou is forwarded to metrological service, junior computer by higher level metrological service computer;

Electricity and error calculation unit obtain standard energy data respectively from A/D sampling unit and higher level metrological service computer And corresponding electric energy detection result data, and Standard clectrical quantity and electricity to be verified and two are calculated based on the data got Electricity error between person.Under present embodiment, quantization electric energy standard set-up function is more complete, portable good.In addition, IEC61850 protocol packing and electricity and error calculation can realize by higher level metrological service computer, then quantization electric energy mark Standard apparatus need to realize function of remotely tracing to the source with the higher level metrological service computer binding for having corresponding function.

Further, in order to ensure the checked object in whole experiment process is constant, present system further includes that monitoring is single Member;

Monitoring unit, quantization electric energy standard set-up, network trunk unit, higher level metrological service computer and junior's dosing machine Structure computer uses GPS clock as standard time clock;

Monitoring unit obtains the measured number electric energy meter associated monitoring image data of metered clients, and after covering timestamp, It is transmitted to higher level metrological service computer.Outdoor scene confirmation of tracing to the source can be achieved, it is ensured that reliability of tracing to the source.Monitoring can be used in monitoring unit The combination of camera and controller is realized, is the prior art.

Telenet is carried out by network trunk unit between higher level metrological service computer and metrological service, junior computer Network communication, with transmission standard energy data and electric energy detection result data.The decaying in signals transmission can be reduced, is improved Data reliability.

The present embodiment passes through in use, quantization country electric energy standard set-up can be used in quantization electric energy standard set-up Voltage, the current sampling signal that exchange quantum voltage issues simulated power source are calibrated, and Standard clectrical quantity is calculated;And to process Quantum voltage trace to the source after voltage, current sampling signal carry out protocol packing, be converted into meeting the data of IEC61850 agreement Frame;

Normal voltage, current data frame after tracing to the source is encrypted by computer and is issued to net by higher level metrological service computer Network relay unit;

The IEC61850 data frame of metrological service, junior computer reception relay forwarding;

IEC61850 data frame is decrypted directly or by network interface-optical port interface conversion equipment and is sent to wait trace to the source by computer Digitalized electrical energy meter, i.e. measured number electric energy standard scale;

Measured number electric energy standard scale measure IEC61850 data frame carry energy information, issue electrical energy pulse, represent to Verify electricity;

Metrological service, junior computer records the electrical energy pulse information that checklist issues by RS485 interface, and by network It is back to higher level metrological service computer after unit, and then is forwarded to quantization electric energy standard set-up;

Quantization electric energy standard set-up obtains tested number by calculating the relative error between Standard clectrical quantity and electricity to be verified Change the measurement error of electric energy standard scale.

It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.

Claims (14)

1. a kind of long-range source tracing method of digitalized electric energy standard scale, characterized in that include:
Obtain the standard energy data that predetermined power source generates after exchange quantum voltage is traced to the source;
The standard energy data that will acquire is sent to the metered clients including measured number electric energy meter by communication network;
It obtains measured number electric energy meter in metered clients and responds the standard energy data, the electric energy detection result exported Data;
Electricity comparison is carried out based on the standard energy data and the electric energy detection result data, calculates electricity between the two Error, the as measurement error of measured number electric energy meter.
2. according to the method described in claim 1, it is characterized in that, the standard electric energy data packet include through exchange quantum voltage traces to the source Voltage data and current data afterwards.
3. according to the method described in claim 1, it is characterized in that, the predetermined power source is that can be controlled a variety of different outputs of output The simulated power source that voltage, output electric current are combined with power factor.
4. according to the method described in claim 1, it is characterized in that, further includes: the standard electric energy data that will acquire are converted to symbol Close IEC61850 agreement data frame after, the data frame is encrypted, then by communication network be sent to including The metered clients of measured number electric energy meter.
The device 5. a kind of digitalized electric energy standard scale is remotely traced to the source, characterized in that include:
Standard electric energy data acquisition module, the standard electric energy generated after exchange quantum voltage is traced to the source for obtaining predetermined power source Data;
Data transmission module, the standard energy data for will acquire are sent to by communication network including measured numberization electricity The metered clients of energy table;
Electric energy detection structured data obtains module, responds the standard for obtaining measured number electric energy meter in metered clients Energy data, the electric energy detection result data exported;
And measurement error computing module, for carrying out electricity based on the standard energy data and the electric energy detection result data Amount comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.
6. a kind of long-range source tracing method of digitalized electric energy standard scale, characterized in that include:
It traces to the source through exchanging quantum voltage in the predetermined power source that the output of higher level metrological service computer is remotely obtained by communication network The standard energy data generated afterwards;
The standard energy data that will acquire is sent to the electric energy acquisition end of measured number electric energy meter;
It obtains measured number electric energy meter and responds the standard energy data, the electric energy detection result data exported;
The electric energy detection result data that will acquire, by communication network transmission to higher level metrological service computer, so that higher level Metrological service's computer can carry out electricity comparison, meter based on the normal voltage current data and the electric energy detection result data Electricity error between the two is calculated, the measurement error of measured number electric energy meter is done.
7. it is a kind of for generating the quantization electric energy standard set-up of any one of claim 1 to 6 standard energy data, it is special Sign is, including control unit, exchange quantum voltage generating unit, simulated power source and A/D sampling unit;
Simulated power source under the control of the control unit, exports different voltage, electric current and power factor combination;
Exchange quantum voltage generation circuit under the control of the control unit, output exchange quantum voltage signal to simulated power source into Row is traced to the source, and standard electric power signal is obtained;
Control unit controls A/D sampling unit and carries out A/D sampling to the standard electric power signal, obtains standard energy data.
8. quantization electric energy standard set-up according to claim 7, characterized in that further include electricity and error calculation list The input terminal of member, electricity and error calculation unit is separately connected A/D sampling unit and external electric energy testing result output end, with Standard energy data and electric energy detection result data are obtained respectively, and then based on the data calculating Standard clectrical quantity got and to school Error between electrical verification amount and Standard clectrical quantity and electricity to be verified.
9. quantization electric energy standard set-up according to claim 8, characterized in that control unit controls A/D sampling unit It is synchronous with electricity and error calculation unit, when A/D sampling module generates first sampled point, control unit control electricity with Error calculation unit starts to calculate Standard clectrical quantity.
10. quantization electric energy standard set-up according to claim 7, characterized in that further include IEC61850 protocol packing Unit, control unit control IEC61850 protocol packing unit carry out standard energy data to meet IEC61850 protocol data frame Conversion and output.
11. a kind of digitalized electric energy standard scale using any one of the claim 7-10 quantization electric energy standard set-up is long-range Traceability system, characterized in that calculated including quantization electric energy standard set-up, higher level metrological service computer, metrological service, junior Machine and measured number electric energy meter;
Quantization electric energy standard set-up generates the standard energy data after exchange quantum voltage is traced to the source based on predetermined power source;
Quantization electric energy standard set-up or higher level metrological service computer, which are converted to standard electric energy data, meets IEC61850 association The data frame of view;
The IEC61850 data frame of standard energy data is sent to junior's meter by communication network by higher level metrological service computer Measuring mechanism computer;
The IEC61850 data frame of the standard energy data received is sent to measured number by metrological service, junior computer Electric energy meter, and obtain measured number electric energy meter and respond the standard energy data, the electric energy detection result data arteries and veins exported Punching, the electric energy detection result data pulse that then will acquire are sent to higher level metrological service computer by communication network;
Higher level metrological service computer or quantization electric energy standard set-up, based on the standard energy data and the electric energy detection Result data carries out electricity comparison, calculates electricity error between the two, the as measurement error of measured number electric energy meter.
12. the long-range traceability system of digitalized electric energy standard scale according to claim 11, characterized in that quantization electric energy mark Standard apparatus includes IEC61850 protocol packing unit and electricity and error calculation unit;
Standard energy data after exchange quantum voltage is traced to the source carries out data frame by the IEC61850 protocol packing unit and beats Bao Hou is forwarded to metrological service, junior computer by higher level metrological service computer;
Electricity and error calculation unit obtain standard energy data respectively from A/D sampling unit and higher level metrological service computer And corresponding electric energy detection result data, and Standard clectrical quantity and electricity to be verified and two are calculated based on the data got Electricity error between person.
13. the long-range traceability system of digitalized electric energy standard scale according to claim 11, characterized in that further include that monitoring is single Member;
Monitoring unit, quantization electric energy standard set-up, network trunk unit, higher level metrological service computer and junior's dosing machine Structure computer uses GPS clock as standard time clock;
Monitoring unit obtains the measured number electric energy meter associated monitoring image data of metered clients, and after covering timestamp, It is transmitted to higher level metrological service computer.
14. the long-range traceability system of digitalized electric energy standard scale according to claim 11, characterized in that higher level metrological service Remote network communication is carried out by network trunk unit between computer and metrological service, junior computer, with transmission standard electric energy Data and electric energy detection result data.
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