CN103336264A - Digital electric energy meter quantity value tracing system based on analog quantity detection and digital electric energy meter quantity value tracing method based analog quantity detection - Google Patents

Digital electric energy meter quantity value tracing system based on analog quantity detection and digital electric energy meter quantity value tracing method based analog quantity detection Download PDF

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Publication number
CN103336264A
CN103336264A CN2013102249940A CN201310224994A CN103336264A CN 103336264 A CN103336264 A CN 103336264A CN 2013102249940 A CN2013102249940 A CN 2013102249940A CN 201310224994 A CN201310224994 A CN 201310224994A CN 103336264 A CN103336264 A CN 103336264A
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electrical energy
electric energy
error
module
energy meter
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CN2013102249940A
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Chinese (zh)
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CN103336264B (en
Inventor
许扬
孙健
杨志新
黄奇峰
王忠东
汤汉松
王磊
罗强
黄洪涛
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国家电网公司
江苏省电力公司
江苏省电力公司电力科学研究院
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Abstract

The invention relates to a complete digital electric energy meter quantity value tracing system based on analog quantity detection and a digital electric energy meter quantity value tracing method based the analog quantity detection. The digital electric energy meter quantity value tracing system based on the analog quantity detection includes an analog electric energy device, an analog standard electric energy meter, an analog standard power meter, a voltage and current conversion message module, a standard power calculation and standard electric energy generation module, and three error calculation modules; the voltage and current conversion message module samples voltage and current parameters of the analog electric energy device, and transmits an IEC61850 message under sequential logic control; and the standard power calculation and standard electric energy generation module samples the content of the IEC61850 message, computes the power of the IEC61850 message real time, and generates electric energy, and performs display and pulse output. With the digital electric energy meter quantity value tracing system based on the analog quantity detection of the invention adopted, quantity values of digital electric energy meters can be traced back to analog quantity measurement standards through an improved method, and the technical problem of difficult tracing of the digital quantity of the digital electric energy meters can be solved, and an improved solution is provided for the tracing of the quantity values of the digital electric energy meters.

Description

A kind of digitalized electrical energy meter magnitude tracing system and method that detects based on analog quantity
Technical field
The digitalized electrical energy meter magnitude tracing system and method that the present invention relates to a kind of completion and detect based on analog quantity, be used for the electric parameter calibration of magnitude tracing or other intelligent secondary devices of intelligent substation digitalized electrical energy meter, belong to intelligent grid instrument and equipment field tests.
Background technology
Along with technology such as intelligent switch, electronic current voltage transformer (VT), an operational outfit presence detection, substation operation training on operation emulation reach its maturity, the application of IEC61850 agreement and the Application and Development of computing machine express network in real-time system, the intelligent substation of the collection of all information in the transformer station, transmission and processing total digitalization will become the inexorable trend that the automation of transformation substations is built in the electric system.
The formulation of a series of intelligent substations of State Grid Corporation of China and digital transformer substation technical standard indicates that the construction of intelligent substation moves towards the engineering practice stage by the scientific research stage.The Q/GDW439-2009 of State Grid Corporation of China " intelligent substation technology guide rule " also issues, and wherein electronic mutual inductor, intelligent switch, intelligent electronic device, digitized protection, digitalized electrical energy meter obtain widely applying.
Traditional mutual inductor its be output as 100V or And 5A or 1A, and the output of Electrical Instrument Transducers with Digital signal is the digital frame of following the IEC61850 standard agreement, the input of digitalized electrical energy meter or other intelligent secondary device also is digital signal, therefore traditional electric energy meter checking device or other traditional test device can't be tested accurately to the standard of carrying out of digitalized electrical energy meter or other intelligent secondary device, the performance of digitalized electrical energy meter or other intelligent secondary device be can't guarantee accurately and reliably, thereby the whole construction of intelligent substation and safety in operation and reliability influenced.
Also be in the trial period both at home and abroad for digitalized electrical energy meter at present, the correlation technique standard is not also formulated and issue, domestic correlative study unit has also proposed multiple digitalized electrical energy meter magnitude tracing detection method, but all imperfection is also lack of standardization, fail to solve the root problem that it is traced to the source, mainly have following problem:
1) the metering value of digitalized electrical energy meter can not be traced to the source to the analog quantity standard;
2) metering accuracy of digitalized electrical energy meter can not accurately be quantized;
3) the tracing to the source to detect and also do not have detections of tracing to the source of a complete cover system of digitalized electrical energy meter, and the accurate measurement performance of this whole system can't detect imperfectly and quantizes and evaluation.
Summary of the invention
The present invention is directed to above-mentioned digitalized electrical energy meter magnitude tracing and detect the technological deficiency that exists, carried out technological innovation, propose a kind of completion and based on the digitalized electrical energy meter magnitude tracing system and method that analog quantity detects, overcome the technical barrier that the digital quantity of digitalized electrical energy meter is difficult for tracing to the source.
Technical scheme of the present invention is:
A kind of digitalized electrical energy meter magnitude tracing system that detects based on analog quantity is characterized in that: comprising: simulation electrical energy devices, mock standard electric energy meter, mock standard power meter, electric current and voltage conversion message module, calibration power calculating and standard electric energy generation module, 3 error calculating module;
Voltage, the current parameter of the described simulation electrical energy devices of described electric current and voltage conversion message module samples, and carry out the transmission of IEC61850 message under sequential logic control provide digitized power source for the magnitude tracing of digitalized electrical energy meter detects; The IEC61850 message content that described electric current and voltage conversion message module that described calibration power calculates and standard electric energy generation module is sampled sends adopts canonical algorithm to calculate realtime power, and generates electric flux in real time, shows with pulse and exports.
By the standard electric energy meter device that described simulation electrical energy devices, mock standard electric energy meter and second error calculating module are formed, the error that detects the integral body of described electric current and voltage conversion message module and calibration power calculating and standard electric energy generation module composition is made as E1.
By the calibration power meter apparatus that described simulation electrical energy devices, mock standard power meter and the 3rd error calculating module are formed, the error that detects the integral body that the standard power calculation is partly formed in described electric current and voltage conversion message module and calibration power calculating and the standard electric energy generation module is made as E2.
Deduct the error E 3 that error E 2 obtains standard electric energy computing module by error E 1, and this error is controlled in a setting range.
Calculate and standard electric energy generation module and first error calculating module with described simulation electrical energy devices, electric current and voltage conversion message module, calibration power, detect tested digitalized electrical energy meter, obtain the error of digitalized electrical energy meter.
Finish at first in this system that electric current and voltage conversion message module and calibration power calculate and standard electric energy generation module is that the mock standard electric energy meter is traced to the source to the analog quantity measurement standard, then finishing in this system electric current and voltage conversion message module is that the mock standard power meter is traced to the source to the analog quantity measurement standard, thereby obtain the result that calibration power calculates and standard electric energy generation module is traced to the source to analog quantity system, satisfy basic demand as this result that traces to the source, can calculate calibration power and standard electric energy generation module as standard, carry out the digitalized electrical energy meter detection of tracing to the source, thereby realizing that digitalized electrical energy meter is traced to the source detects a whole set of complete process of tracing to the source to the analog quantity measurement standard.
A kind of digitalized electrical energy meter magnitude tracing method that detects based on analog quantity is characterized in that: comprise following steps:
Voltage, the current parameter of electric current and voltage conversion message module samples simulation electrical energy devices, and carry out the transmission of IEC61850 message under sequential logic control provide digitized power source for the magnitude tracing of digitalized electrical energy meter detects; The IEC61850 message content that described electric current and voltage conversion message module that calibration power calculates and standard electric energy generation module is sampled sends adopts canonical algorithm to calculate realtime power, and generates electric flux in real time;
Form the standard electric energy meter device by simulation electrical energy devices, mock standard electric energy meter and second error calculating module, the error that detects the integral body of electric current and voltage conversion message module, calibration power calculating and standard electric energy generation module composition is made as E1;
Form the calibration power meter apparatus by described simulation electrical energy devices, mock standard power meter, the 3rd error calculating module again, the error that detects the integral body that the standard power calculation is partly formed in described electric current and voltage conversion message module, the calculating of described calibration power and the standard electric energy generation module is made as E2;
Deduct the error E 3 that error E 2 obtains standard electric energy computing module in described calibration power calculating and the standard electric energy generation module by error E 1, this error is controlled in a setting range;
Calculate and standard electric energy generation module and first error calculating module with described simulation electrical energy devices, electric current and voltage conversion message module, calibration power at last, detect tested digitalized electrical energy meter, obtain the error of tested described digitalized electrical energy meter.
Error E 3 setting ranges of described standard electric energy computing module are less than 0.05%.
With the simulation electrical energy devices, electric current and voltage conversion message module, calibration power calculates and standard electric energy generation module and error calculating module, when detecting tested digitalized electrical energy meter, simulate electrical energy devices this moment, the function that electric current and voltage conversion message module has only been served as the message generating means, be actually this moment and adopt calibration power calculating and standard electric energy generation module to detect digitalized electrical energy meter, in real work, obtain for E2 deducts E1 owing to error E 3, E3 may be less, but under present condition since the error of digitalized electrical energy meter according to 0.2 grade of the grade of errors of traditional digital electric energy meter, therefore as long as this error can be finished magnitude tracing work less than 0.05%.
The beneficial effect that the present invention reaches:
This invention provides a kind of digitalized electrical energy meter magnitude tracing method of completion, make the value of digitalized electrical energy meter to be traceable on the analog quantity measurement standard by perfect method, overcome the technical barrier that the digital quantity of digitalized electrical energy meter is difficult for tracing to the source, for the digitalized electrical energy meter magnitude tracing provides perfect solution.
Description of drawings
Fig. 1 is digitalized electrical energy meter traceability system one-piece construction figure;
Fig. 2 is the device wiring diagram of tracing to the source of digitalized electrical energy meter in the traceability system;
Fig. 3 is the digitalized electrical energy meter inner principle assumption diagram of device of tracing to the source.
Embodiment
As depicted in figs. 1 and 2, completion of the present invention and the digitalized electrical energy meter magnitude tracing system that detects based on analog quantity, comprise the simulation electrical energy devices, the mock standard electric energy meter, the mock standard power meter, electric current and voltage conversion message module, calibration power calculates and standard electric energy generation module, 3 error calculating module.Wherein, the simulation electrical energy devices, the mock standard electric energy meter is identical with traditional electric energy meter device structure with second error calculating module, and the mock standard power meter, also the error calculating module with traditional is consistent for other two error calculating module.Wherein, calculated by electric current and voltage conversion message module, calibration power and standard electric energy generation module and first error calculating module constitute the digitalized electrical energy meter device of tracing to the source; Form the standard electric energy meter device by simulation electrical energy devices, mock standard electric energy meter and second error calculating module; Form the calibration power meter apparatus by simulation electrical energy devices, mock standard power meter and the 3rd error calculating module (also claiming the power error computing module).
Host CPU adopts the MPC8247 embedded microprocessor of Freescale company in the digitalized electrical energy meter traceability system as shown in Figure 3, this processor belongs to PowerQUICC II series, comprises one based on kernel and a communication process kernel CPM of PowerPC MPC603e.The double-core design has powerful processing power and higher integrated level, has reduced the composition expense of system, has simplified the design of circuit board, has reduced power consumption.
FPGA adopts the Spartan series of products XC3S1000 of Xilinx, based on the accurate sequential control ability of FPGA, finishes the control of AD sampling, and the transmission of network data etc. have strict task to the time.
Analog to digital converter adopts the ADS1271 of Burr-Broun company as analog to digital converter signal to be gathered, this ADC is 24,50KHz bandwidth, the offset drift of 1.8uV/ ° of C, up to the signal to noise ratio (S/N ratio) of 109dB, realized the breakthrough combination of DC precision and AC performance.
Ethernet controller is the LXT971 of Intel Company.LXT971 is the quick ether controller of single port 10/100M double speed, its compatible IEEE802.3; Support 10Base5,10Base2,10BaseT, 100BASE-X, 100BASE-TX, 100BASE-FX, and can detect the medium that connects automatically, select for use Agilent AFBR5803 as the fiber optic network transceiver.
Application software is developed based on vxworks operating system, high-quality precision and sophisticated technology and the high fields of real-time requirement such as vxworks good reliability and remarkable real-time are widely used in and communicate by letter, military affairs, Aeronautics and Astronautics.
After device research and development debugging that all kinds of conventional apparatus are debugged and digitalized electrical energy meter is traced to the source was finished, the testing process of tracing to the source was divided into three phases and carries out.
1, the digitalized electrical energy meter device global error detection-phase of tracing to the source
By simulating the standard electric energy meter device that electrical energy devices, mock standard electric energy meter and second error calculating module are formed, the digitalized electrical energy meter that the detects research and development global error of device of tracing to the source, be the integral body that electric current and voltage conversion message module error, calibration power calculating and standard electric energy generation module error are formed, measuring error is E1.
2, digitalized electrical energy meter is traced to the source electric current and voltage conversion and power computation module error-detecting stage in the device
By simulating the calibration power meter apparatus that electrical energy devices, mock standard power meter and the 3rd error calculating module (being the power error computing module) are formed, detect digitalized electrical energy meter trace to the source electric current and voltage conversion message module in the device, calibration power calculates and standard electric energy generation module in the integral body partly formed of standard power calculation, measuring error is E2.
3, the digitalized electrical energy meter error-detecting stage
This is utilized and deducts E2 by E1 and obtain the trace to the source error E 3 of the standard electric energy computing module behind the sampled I EC61850 message in the device of digitalized electrical energy meter in stage; So error E 3 controls are in a setting range, as less than 0.05%, can change the message module as power source with simulation electrical energy devices and electric current and voltage at last, digitalized electrical energy meter trace to the source that calibration power in the device calculates and standard electric energy generation module as standard, calculate tested digitalized electrical energy meter and the error of this standard by first error calculating module, thereby obtain the detection error of digitalized electrical energy meter.

Claims (8)

1. a digitalized electrical energy meter magnitude tracing system that detects based on analog quantity is characterized in that: comprising: simulation electrical energy devices, mock standard electric energy meter, mock standard power meter, electric current and voltage conversion message module, calibration power calculating and standard electric energy generation module, 3 error calculating module;
Voltage, the current parameter of the described simulation electrical energy devices of described electric current and voltage conversion message module samples, and carry out the transmission of IEC61850 message under sequential logic control provide digitized power source for the magnitude tracing of digitalized electrical energy meter detects; The IEC61850 message content that described electric current and voltage conversion message module that described calibration power calculates and standard electric energy generation module is sampled sends adopts canonical algorithm to calculate realtime power, and generates electric flux in real time, shows with pulse and exports.
2. a kind of digitalized electrical energy meter magnitude tracing system that detects based on analog quantity according to claim 1, it is characterized in that: by the standard electric energy meter device that described simulation electrical energy devices, mock standard electric energy meter and second error calculating module are formed, the error that detects the integral body of described electric current and voltage conversion message module and calibration power calculating and standard electric energy generation module composition is made as E1.
3. a kind of digitalized electrical energy meter magnitude tracing system that detects based on analog quantity according to claim 2, it is characterized in that: by the calibration power meter apparatus that described simulation electrical energy devices, mock standard power meter and the 3rd error calculating module are formed, the error that detects the integral body that the standard power calculation is partly formed in described electric current and voltage conversion message module and calibration power calculating and the standard electric energy generation module is made as E2.
4. a kind of digitalized electrical energy meter magnitude tracing system that detects based on analog quantity according to claim 3 is characterized in that: deduct the error E 3 that error E 2 obtains standard electric energy computing module by error E 1, and this error is controlled in a setting range.
5. a kind of digitalized electrical energy meter magnitude tracing system that detects based on analog quantity according to claim 4, it is characterized in that: calculate and standard electric energy generation module and first error calculating module with described simulation electrical energy devices, electric current and voltage conversion message module, calibration power, detect tested digitalized electrical energy meter, obtain the error of digitalized electrical energy meter.
6. a kind of digitalized electrical energy meter magnitude tracing method that detects based on analog quantity according to claim 1 is characterized in that: comprise following steps:
Voltage, the current parameter of electric current and voltage conversion message module samples simulation electrical energy devices, and carry out the transmission of IEC61850 message under sequential logic control provide digitized power source for the magnitude tracing of digitalized electrical energy meter detects; The IEC61850 message content that described electric current and voltage conversion message module that calibration power calculates and standard electric energy generation module is sampled sends adopts canonical algorithm to calculate realtime power, and generates electric flux in real time;
Form the standard electric energy meter device by simulation electrical energy devices, mock standard electric energy meter and second error calculating module, the error that detects the integral body of electric current and voltage conversion message module, calibration power calculating and standard electric energy generation module composition is made as E1;
Form the calibration power meter apparatus by described simulation electrical energy devices, mock standard power meter, the 3rd error calculating module again, the error that detects the integral body that the standard power calculation is partly formed in described electric current and voltage conversion message module, the calculating of described calibration power and the standard electric energy generation module is made as E2;
Deduct the error E 3 that error E 2 obtains standard electric energy computing module in described calibration power calculating and the standard electric energy generation module by error E 1, this error is controlled in a setting range;
Calculate and standard electric energy generation module and first error calculating module with described simulation electrical energy devices, electric current and voltage conversion message module, calibration power at last, detect tested digitalized electrical energy meter, obtain the error of tested described digitalized electrical energy meter.
7. a kind of digitalized electrical energy meter magnitude tracing method that detects based on analog quantity according to claim 6 is characterized in that: error E 3 setting ranges of described standard electric energy computing module are for less than 0.05%.
8. a kind of digitalized electrical energy meter magnitude tracing method that detects based on analog quantity according to claim 6, it is characterized in that: calculate and standard electric energy generation module and first error calculating module with described simulation electrical energy devices, electric current and voltage conversion message module, calibration power, when detecting tested described digitalized electrical energy meter, described simulation electrical energy devices, electric current and voltage conversion message module are served as the message generating means at this moment, detect described digitalized electrical energy meter by described calibration power calculating and standard electric energy generation module.
CN201310224994.0A 2013-06-07 2013-06-07 Digital electric energy meter quantity value tracing system based on analog quantity detection and digital electric energy meter quantity value tracing method based analog quantity detection CN103336264B (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103499807A (en) * 2013-10-10 2014-01-08 国家电网公司 Checking device and method for eliminating truncation errors of digital electric energy meter
CN103558577A (en) * 2013-10-29 2014-02-05 国家电网公司 Double-input-type digital standard energy meter, detecting system and quantity value source tracing system
CN103837855A (en) * 2014-02-20 2014-06-04 国家电网公司 Digital standard source based on precise time control
CN103901384A (en) * 2014-04-09 2014-07-02 国家电网公司 Device and method for detecting analog quantity output standard power source and digital quantity output standard power source
CN103901389A (en) * 2014-04-09 2014-07-02 国家电网公司 Verifying device and method of analog electric signal electric energy meter, analog electronic signal electric energy meter and digital signal electric energy meter
CN103901391A (en) * 2014-04-09 2014-07-02 国家电网公司 Novel analog standard meter with digital electric energy meter detection function and detection method
CN103941217A (en) * 2014-04-17 2014-07-23 国家电网公司 Electric energy metering device working condition simulation platform
CN105203986A (en) * 2015-09-16 2015-12-30 国家电网公司 Digital power source tracing method and system
CN105242231A (en) * 2015-09-08 2016-01-13 国家电网公司 Digital electric energy measurement performance detection and tracing method and closed-loop system
CN105738691A (en) * 2014-12-11 2016-07-06 国家电网公司 Efficacy metering detection platform for high voltage motor
CN106295047A (en) * 2016-08-19 2017-01-04 江苏电力信息技术有限公司 A kind of method of transformer station's design for drawing elements on electric network wiring scheme
CN106405464A (en) * 2016-10-10 2017-02-15 国网四川省电力公司电力科学研究院 Method for generating traceable random waveform analog power signals
CN106918797A (en) * 2017-03-29 2017-07-04 国家电网公司 A kind of digitalized electrical energy meter calibrating and source tracing method based on standard digital power source
CN109725281A (en) * 2019-01-18 2019-05-07 国网江苏省电力有限公司电力科学研究院 A kind of long-range source tracing method of digitalized electrical energy meter based on quantum techniques and system
CN110736957A (en) * 2019-12-12 2020-01-31 国网江西省电力有限公司电力科学研究院 Online detection system and method for electric energy metering device based on clock synchronization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325048A (en) * 1992-04-14 1994-06-28 Digital Kwh Inc. Method and apparatus for calibrating a digital electric engergy consumption meter
CN201569736U (en) * 2009-12-11 2010-09-01 中国电力科学研究院 Watt-hour meter calibration device
CN101900799A (en) * 2009-09-30 2010-12-01 广东电网公司电力科学研究院 Digital electric energy meter checking device based on analog source tracing method
CN202600133U (en) * 2012-06-13 2012-12-12 江苏省电力公司电力科学研究院 Digital quantity input electric energy meter calibration system capable of supporting synchronous analog quantity source tracing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325048A (en) * 1992-04-14 1994-06-28 Digital Kwh Inc. Method and apparatus for calibrating a digital electric engergy consumption meter
CN101900799A (en) * 2009-09-30 2010-12-01 广东电网公司电力科学研究院 Digital electric energy meter checking device based on analog source tracing method
CN201569736U (en) * 2009-12-11 2010-09-01 中国电力科学研究院 Watt-hour meter calibration device
CN202600133U (en) * 2012-06-13 2012-12-12 江苏省电力公司电力科学研究院 Digital quantity input electric energy meter calibration system capable of supporting synchronous analog quantity source tracing

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103499807A (en) * 2013-10-10 2014-01-08 国家电网公司 Checking device and method for eliminating truncation errors of digital electric energy meter
CN103499807B (en) * 2013-10-10 2016-08-17 国家电网公司 A kind of method of calibration eliminating digital electricity meter truncated error
CN103558577A (en) * 2013-10-29 2014-02-05 国家电网公司 Double-input-type digital standard energy meter, detecting system and quantity value source tracing system
CN103837855A (en) * 2014-02-20 2014-06-04 国家电网公司 Digital standard source based on precise time control
CN103837855B (en) * 2014-02-20 2016-07-06 国家电网公司 Based on the digital standard source that precise time controls
CN103901389A (en) * 2014-04-09 2014-07-02 国家电网公司 Verifying device and method of analog electric signal electric energy meter, analog electronic signal electric energy meter and digital signal electric energy meter
CN103901384B (en) * 2014-04-09 2016-08-24 国家电网公司 Analog quantity and digital quantity outputting standard power source detection device and method
CN103901384A (en) * 2014-04-09 2014-07-02 国家电网公司 Device and method for detecting analog quantity output standard power source and digital quantity output standard power source
CN103901391A (en) * 2014-04-09 2014-07-02 国家电网公司 Novel analog standard meter with digital electric energy meter detection function and detection method
CN103941217B (en) * 2014-04-17 2016-01-20 国家电网公司 A kind of electric power meter Work condition analogue platform
CN103941217A (en) * 2014-04-17 2014-07-23 国家电网公司 Electric energy metering device working condition simulation platform
CN105738691A (en) * 2014-12-11 2016-07-06 国家电网公司 Efficacy metering detection platform for high voltage motor
CN105242231A (en) * 2015-09-08 2016-01-13 国家电网公司 Digital electric energy measurement performance detection and tracing method and closed-loop system
CN105203986A (en) * 2015-09-16 2015-12-30 国家电网公司 Digital power source tracing method and system
CN106295047A (en) * 2016-08-19 2017-01-04 江苏电力信息技术有限公司 A kind of method of transformer station's design for drawing elements on electric network wiring scheme
CN106295047B (en) * 2016-08-19 2019-04-23 江苏电力信息技术有限公司 A kind of method of substation's design for drawing elements on electric network wiring scheme
CN106405464A (en) * 2016-10-10 2017-02-15 国网四川省电力公司电力科学研究院 Method for generating traceable random waveform analog power signals
CN106405464B (en) * 2016-10-10 2019-02-22 国网四川省电力公司电力科学研究院 A kind of method for the random waveform simulated power signal that generation can trace to the source
CN106918797B (en) * 2017-03-29 2019-04-02 国家电网公司 A kind of digitalized electrical energy meter calibrating and source tracing method based on standard digital power source
CN106918797A (en) * 2017-03-29 2017-07-04 国家电网公司 A kind of digitalized electrical energy meter calibrating and source tracing method based on standard digital power source
CN109725281A (en) * 2019-01-18 2019-05-07 国网江苏省电力有限公司电力科学研究院 A kind of long-range source tracing method of digitalized electrical energy meter based on quantum techniques and system
CN110736957A (en) * 2019-12-12 2020-01-31 国网江西省电力有限公司电力科学研究院 Online detection system and method for electric energy metering device based on clock synchronization

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