CN105093157B - The method of testing of parameter algorithm based on IEC61850 sampled values - Google Patents
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Abstract
The invention discloses a kind of method of testing of the parameter algorithm based on IEC61850 sampled values, the test system of the method for testing foundation includes computer, IEC61850 protocol data message generators, data message analyzer, electrical parameter tested device and high accurate calculagraph, IEC61850 protocol data message generators are a kind of according to IEC61850 agreements and the chronologically virtual signal generator of outputting measurement value message, data message analyzer is that a kind of data message that can be generated to IEC61850 protocol data messages generator parses, judge the whether correct data analyzer of sampled value.Electrical parameter arithmetic accuracy, resolution ratio under sinusoidal periodic signal can be verified using the test system；Electrical parameter arithmetic accuracy and electric energy integrating precision under non-sine periodic signal.The present invention is used to detect the arithmetic accuracy based on IEC61850 data models, eliminates the influence of time factor, simplifies testing process.
Description
Technical field
The present invention relates to a kind of method of testing of the parameter algorithm based on IEC61850 sampled values, belong to digital transformer substation
Field of measuring techniques.
Background technology
The in-site measurement value of digital transformer substation is all based on the voltage of IEC61850 data communication protocols, current signal
Instantaneous sampling value (SV), sent to each measurement and set by Ethernet with the form of data message after multiple sampled value packings
Standby, measuring apparatus is separated by decantation to voltage, current signal sampled value by solution, and it is effective to calculate voltage by certain numerical value algorithm
The electrical parameters such as value, current effective value, performance number, phase, a period of time can also be drawn by constantly cumulative instantaneous power value
Interior energy value.It can thus be seen that digitized measurement equipment is exactly pure numerical computations equipment or is algorithm calculator, its
The algorithm and precision of each parameter just embody the metering performance of corresponding measuring apparatus, carry out canonical algorithm to digitized measurement equipment
The degree of accuracy that research, detection algorithm calculate just turns into a kind of new " the digitized measurement " technology.And at present on this aspect
Research, theory, detection technique, inspection criterion are all still immature or still locate blank, implement " the digitized measurement " technological innovation, fit
Meet at that time.
The content of the invention
It is an object of the invention to provide a kind of method of testing of the parameter algorithm based on IEC61850 sampled values, for examining
Survey the precision of the electrical parameter algorithm based on IEC61850 data models.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
The method of testing of parameter algorithm based on IEC61850 sampled values, the ginseng based on IEC61850 sampled values is built first
Method test system is figured, including computer, IEC61850 protocol data messages generator, data message analyzer, electrical parameter are surveyed
Amount device and high accurate calculagraph, the IEC61850 protocol datas message generator pass through serial communication interface and computer phase
Even, it is connected respectively with electrical parameter measuring device, data message analyzer by Ethernet optical port；The electrical parameter measuring device leads to
Cross control signal interface with high accurate calculagraph to be connected, be connected by RS485 serial communication interfaces with computer；
The IEC61850 protocol datas message generator is that according to IEC61850 agreements and chronologically output measures one kind
It is worth the virtual signal generator of message, possesses and calculate fundamental power value, harmonic wave virtual value, the function of harmonic power value；
The high accurate calculagraph is the time control instrument that electrical parameter measuring device electric energy can be controlled to have good luck；
The data message analyzer is that a kind of data message to the generation of IEC61850 protocol data messages generator enters
Row parsing, judge the whether correct data analyzer of sampled value；
The computer accepts parameter, error calculation and loads test software；
The electrical parameter measuring device is the measurement apparatus for carrying out all electrical parameter calculating, is the hard of electrical parameter algorithm operation
Part device.
Then, tested in the steps below,
1) electrical parameter arithmetic accuracy, resolution test under sinusoidal periodic signal,
Wherein, electrical parameter arithmetic accuracy method of testing under sinusoidal periodic signal, specifically includes following steps：
The accuracy of IEC61850 protocol data message generator outgoing messages 1-1) is verified, in the correct situation of message
Under, carry out step 1-2)；
1-2) electrical parameter arithmetic accuracy is verified；
Electrical parameter algorithm resolution test method is under sinusoidal periodic signal：IEC61850 protocol datas message is set to occur
Device output voltage virtual value 0.01V, current effective value 0.001A, electrical parameter measuring device should have respective digital to show；
2) electrical parameter arithmetic accuracy is tested under non-sine periodic signal, specifically includes following steps：
The accuracy of IEC61850 protocol data message generator outgoing messages 2-1) is verified, in the correct situation of message
Under, carry out step 2-2)；
2-2) electrical parameter arithmetic accuracy is verified；
3) electric energy integrating accuracy test, electrical parameter arithmetic accuracy, resolution test and non-sine under sinusoidal periodic signal
Carried out under periodic signal after the completion of the test of electrical parameter arithmetic accuracy, specifically include following steps：
3-1) computer reads voltage, the electricity that IEC61850 protocol data messages generator is set by serial communication interface
Flow the virtual value and phase difference value and power calculation value of signal；
One time of measuring of high accurate calculagraph 3-2) is set, and passes through control signal interface start and stop electrical parameter measuring device
Electric energy have good luck；
3-3) computer reads the electricity accumulated in electrical parameter measuring device measuring section by RS485 serial communication interfaces
Value or energy value can be calculated with meter constant by accumulating electrical energy pulse number, and by the energy value and IEC61850 protocol datagrams
The product that the power calculation value of literary generator is multiplied by time of measuring does difference comparsion, calculates corresponding electric energy error, and and power error
It is compared, so as to assess electric energy integrating error；
Measurement point 3-4) is selected, tests the electric energy integrating error of corresponding measurement point, note respectively under fundamental wave and harmonic condition
Record accordingly result.
Foregoing step 1-1) checking IEC61850 protocol data message generator outgoing messages accuracy, it is including following
Step：
1-1-1) pass through the human-computer interaction interface of IEC61850 protocol data message generators, setting voltage, current signal
Virtual value and phase difference value, IEC61850 protocol data message generators as corresponding to setting value periodic signal sampled value and lack
The sample frequency of province passes through IEC61850 sampling value messages corresponding to the output of Ethernet optical port to data message with defined sequential
Analyzer and electrical parameter measuring device；Voltage, current signal of the IEC61850 protocol data message generators according to setting simultaneously
Virtual value and phase difference value calculate and corresponding power value and show；
1-1-2) data message analyzer obtains the message of IEC61850 protocol data messages generator output, presses
IEC61850 protocol rules carry out code analysis, enter according to sine function, sampling number, sampling resolution, frame width analysis information
The parsing of row sampled data, compare, judge sampled value and the accuracy of message format；
Different voltage, the virtual value of current signal and phase difference value 1-1-3) are set as measurement point, repeat step 1-
1-1) -1-1-2), verify the accuracy of outgoing message.
Foregoing step 1-2) electrical parameter arithmetic accuracy is verified, comprise the following steps：
Three-phase result of calculation uniformity, stability 1-2-1) are detected first：Measurement point is chosen, passes through IEC61850 agreement numbers
According to the human-computer interaction interface of message generator, the voltage of setting measurement point, the virtual value and phase difference value of current signal, every phase is all
Identical, IEC61850 protocol data message generators periodic signal sampled value and default sampling frequency as corresponding to setting value are set
Rate passes through IEC61850 sampling value messages corresponding to the output of Ethernet optical port to electrical parameter measuring device with defined sequential；Observation
Electrical parameter measuring device triphase parameter show value, answer consistent and stablize constant per phase show value；
1-2-2) then carry out electrical parameter Algorithm Error test：Computer reads IEC61850 associations by serial communication interface
Voltage, the virtual value and phase difference value and power calculation value of current signal that view data message generator is set in measurement point,
Read the response of electrical parameter measuring device；IEC61850 protocol datagram of the computer by the calculation procedure of setting to reading
The power calculation value of literary generator is tested, including split-phase active and reactive power value and respective three-phase superposition value；Computer pair
The response of the electrical parameter measuring device of reading and the setting value and power calculation value of IEC61850 protocol data message generators
Difference comparsion is carried out, calculates error corresponding to each electrical parameter；Multiple measurement points are repeated, and more different sample frequencys are to error
Influence.
Foregoing step 2-1) checking IEC61850 protocol data message generator outgoing messages accuracy, it is including following
Step：
2-1-1) by the human-computer interaction interface of IEC61850 protocol data message generators, the electricity of fundamental wave and harmonic wave is set
Pressure, the virtual value and phase difference value of current signal, IEC61850 protocol data message generator signal winks as corresponding to setting value
When sampled value and default sample frequency with defined sequential pass through Ethernet optical port output corresponding to IEC61850 sampled value reports
Text is to data message analyzer and electrical parameter measuring device；While IEC61850 protocol data message generators are according to the base of setting
It is effective by the corresponding harmonic wave of harmonic parameters calculation formula calculating to involve the voltage of harmonic wave, the virtual value of current signal and phase difference value
Value, total power value are simultaneously shown；
2-1-2) data message analyzer obtains the message of IEC61850 protocol data messages generator output, presses
IEC61850 protocol rules carry out code analysis, according to sampling number, sampling resolution, each frequency component functional value, the analysis of frame width
Information carries out sampled data parsing, compared, and judges sampled value and the accuracy of message format；
The different fundamental waves and voltage of harmonic wave, the virtual value of current signal and phase difference value 2-1-3) are set as measurement
Point, repeat step 2-1-1) -2-1-2), verify the accuracy of outgoing message.
Foregoing step 2-2) electrical parameter arithmetic accuracy is verified, comprise the following steps：
Three-phase result of calculation uniformity, stability 2-2-1) are detected first：Measurement point is chosen, passes through IEC61850 agreement numbers
It is the voltage of setting measurement point, the virtual value of current signal and phase difference value, corresponding humorous according to the human-computer interaction interface of message generator
Wave component, per mutually all identical, the IEC61850 protocol data message generators periodic signal sampled value as corresponding to setting value of setting
And default sample frequency exports corresponding IEC61850 sampling value messages to electrical parameter with defined sequential by Ethernet optical port
Measurement apparatus；Electrical parameter measuring device triphase parameter show value is observed, answers consistent and stablizes constant per phase show value；
2-2-2) then carry out electrical parameter Algorithm Error test：Computer reads IEC61850 associations by serial communication interface
Discuss the measurement point voltage of data message generator setting, the virtual value of current signal and phase difference value, corresponding harmonic component and
Power calculation value, read the response of electrical parameter measuring device；Computer is by the calculation procedure of setting to reading
The power calculation value of IEC61850 protocol data message generators is tested, including harmonic voltage virtual value, harmonic current have
Valid value and corresponding harmonic power value；Response and IEC61850 protocol datagram of the computer to the electrical parameter measuring device of reading
The setting value and power calculation value of literary generator carry out difference comparsion, calculate error corresponding to each electrical parameter；Repeat multiple measurements
Point, and influence of the more different sample frequencys to error.
The selection of foregoing measurement point is true by IEC61850 protocol rules and actual transformer station's transformer working signal scope
It is fixed, minimum resolution 10mV, 1mA, maximum working voltage 750kV, maximum operating currenbt 5000A, to this range signal by linear
It is uniformly arranged measurement point.
Advantages of the present invention is：Measurement parameter under every measurement parameter, various signal waveforms to parameter measuring apparatus
Arithmetic accuracy is detected, the test content system that provides, comprehensively；Power error embodies electric energy error, from power algorithm essence
Degree judges electric energy arithmetic accuracy, eliminates the influence of the influence of electric energy time factor, only algorithm factor, its error analysis is compared
It is objective, test is more accurate, while also simplify test jobs.
Brief description of the drawings
Fig. 1 is the structural representation of the electrical parameter test of heuristics system of the invention based on IEC61850 sampled values.
Embodiment
The present invention is described in further detail in conjunction with the drawings and specific embodiments.
For a digital measuring device, its arithmetic accuracy checking content includes following 3 aspects：
1) electrical parameter arithmetic accuracy, resolution ratio under sinusoidal periodic signal；
2) electrical parameter arithmetic accuracy under non-sine periodic signal (harmonic wave)；
3) electric energy integrating precision.
Wherein, electrical parameter includes：Voltage effective value；Current effective value；Phase difference value；Power factor value；Split-phase and always have
Power calculation value；Split-phase and total inactivity calculated value；Apparent energy value.
As shown in figure 1, the electrical parameter test of heuristics system based on IEC61850 sampled values of the present invention includes：Computer,
IEC61850 protocol data messages generator, data message analyzer, electrical parameter measuring device (algorithm calculator) and high accuracy
Timer.Specifically, IEC61850 protocol data message generators are connected by serial communication interface with computer, pass through ether
Net optical port is connected with electrical parameter measuring device and data message analyzer respectively；Electrical parameter measuring device is also connect by control signal
Mouth is connected with high accurate calculagraph, is connected by RS485 serial communication interfaces with computer.
The IEC61850 protocol data message generators of the present invention are one kind according to IEC61850 agreements and chronologically exported
The virtual signal generator of measured value message, it can also be realized by calculator, it is (fundamental power value, humorous that it is also equipped with calculating parameter
Ripple virtual value, harmonic power value etc.) computing function.High accurate calculagraph is that electrical parameter measuring device electric energy can be controlled to have good luck
Time control instrument.Data message analyzer is a kind of data message that can be generated to IEC61850 protocol data messages generator
Parsed, judge the whether correct data analyzer of sampled value.Computer accepts parameter, error calculation and loads test software
Etc. function.Electrical parameter measuring device is the measurement apparatus that can carry out all electrical parameter calculating, is the hardware of electrical parameter algorithm operation
Device.
The method that the checking of measurement apparatus arithmetic accuracy is digitized using present system is as follows：
1st, under sinusoidal periodic signal electrical parameter arithmetic accuracy method of testing, comprise the following steps：
1.1st, message Accuracy Verification
IEC61850 protocol data message generators 1-1-1) are set：Pass through IEC61850 protocol data message generators
Human-computer interaction interface, setting predicted voltage, the virtual value and phase difference value of current signal, IEC61850 protocol datas message occur
Device periodic signal sampled value and default sample frequency as corresponding to setting value are exported with defined sequential by Ethernet optical port
Corresponding IEC61850 sampling value messages are to data message analyzer and electrical parameter measuring device；IEC61850 protocol datas simultaneously
Message generator calculates corresponding power value according to the voltage of setting, the virtual value of current signal and phase difference value and shown.
1-1-2) data message analyzer is carried out to the correctness of IEC61850 protocol data message generator outgoing messages
Checking：Data message analyzer obtains the message of IEC61850 protocol data messages generator output, is advised by IEC61850 agreements
Code analysis is then carried out, sampled data solution is carried out according to the analysis information such as sine function, sampling number, sampling resolution, frame width
Analysis, compare, judge sampled value and the accuracy of message format.
Different voltage, the virtual value of current signal and phase difference value 1-1-3) are set as different measurement points, is repeated
Step 1-1-1) -1-1-2).In the case of message and calculated power value are correct, 1.2 steps are carried out.
1.2nd, electrical parameter arithmetic accuracy is verified, is comprised the following steps：
1-2-1) three-phase result of calculation uniformity, Detection of Stability：Pass through IEC61850 protocol data message generators
Human-computer interaction interface, the virtual value and phase difference value of voltage, current signal are set by the measurement point of table 1, it is identical per mutually all setting,
IEC61850 protocol data message generators are by periodic signal sampled value corresponding to setting value and default sample frequency to provide
Sequential pass through IEC61850 sampling value messages corresponding to the output of Ethernet optical port to electrical parameter measuring device；Electrical parameter is observed to survey
Device triphase parameter show value is measured, answers consistent and stablizes constant per phase show value；
1-2-2) electrical parameter Algorithm Error is tested：Computer reads IEC61850 protocol datagrams by serial communication interface
Voltage, the virtual value of current signal and the phase difference value and the performance number of calculating that literary generator is set in measurement point, read electricity
Response (measurement) value of parameter measuring apparatus；IEC61850 protocol datagram of the computer by the calculation procedure of setting to reading
The calculated value of literary generator is tested, including split-phase active and reactive power value and respective three-phase superposition value, should be error free；Meter
The setting value of response (measurement) value and IEC61850 protocol data message generator of the calculation machine to the electrical parameter measuring device of reading/
Calculated value carries out difference comparsion, calculates difference or error corresponding to each parameter；Repeat multiple measurement points, and more different sampling frequencies
Influence of the rate to error.
Above measurement point is set：Measurement point selection presses IEC61850 protocol rules and actual transformer station's transformer working signal
Scope determination, minimum resolution 10mV, 1mA, maximum working voltage 750kV, maximum operating currenbt 5000A, to this range signal
By linear homogeneous, regular inspection measuring point is set, referring to table 1, U represents operating voltage in table 1, and I represents operating current, and P represents power,
The cos0 ° of angle for representing operating voltage and operating current is 0 °, and the cos60 ° of angle for representing operating voltage and operating current is
60°。
Electrical parameter algorithm resolution test method is under sinusoidal periodic signal：
IEC61850 protocol data message generator output voltage virtual values 0.01V, current effective value 0.001A, electricity are set
Parameter measuring apparatus should have respective digital to show.
2nd, electrical parameter arithmetic accuracy is tested under non-sine periodic signal (harmonic wave), is comprised the following steps：
2.1 message Accuracy Verifications
IEC61850 protocol data message generators 2-1-1) are set：Pass through IEC61850 protocol data message generators
Human-computer interaction interface, setting prediction fundamental wave and the voltage of harmonic wave, the virtual value of current signal and phase difference value, IEC61850 agreements
Data message generator as corresponding to setting value signal transient sampled value and default sample frequency with defined sequential by with
IEC61850 sampling value messages are to data message analyzer and electrical parameter measuring device too corresponding to the output of net optical port；Simultaneously
IEC61850 protocol data message generators are according to the fundamental wave and harmonic voltage of setting, the virtual value and phase difference value of current signal
Corresponding harmonic wave virtual value, total power value are calculated by harmonic parameters calculation formula and are shown.
2-1-2) data message analyzer is tested IEC61850 protocol data message generator outgoing message correctness
Card：Data message analyzer obtains the message of IEC61850 protocol data messages generator output, by IEC61850 protocol rules
Code analysis is carried out, hits is carried out according to the analysis information such as sampling number, sampling resolution, each frequency component functional value, frame width
According to parsing, compare, judge sampled value and the accuracy of message format, answer zero defect.
The different fundamental wave and voltage of harmonic wave, the virtual value of current signal and phase difference value 2-1-3) are set as different
Measurement point, referring to table 2, repeat step 2-1-1) -2-1-2).In the case of message and calculated value are correct, 2.2 steps are carried out.
2.2nd, electrical parameter arithmetic accuracy is verified
2-2-1) three-phase result of calculation uniformity, Detection of Stability：Pass through IEC61850 protocol data message generators
Human-computer interaction interface, the virtual value and phase difference value, corresponding harmonic component of voltage, current signal are set by the measurement point of table 2, per phase
All identical, IEC61850 protocol data message generators periodic signal sampled value and default sampling as corresponding to setting value are set
Frequency exports corresponding IEC61850 sampling value messages to electrical parameter measuring device with defined sequential by Ethernet optical port；Observation
Electrical parameter measuring device triphase parameter show value, answer consistent and stablize constant per phase show value.
2-2-2) electrical parameter Algorithm Error is tested：Computer reads IEC61850 protocol datagrams by serial communication interface
Measurement point voltage, the virtual value of current signal and the work(of phase difference value, corresponding harmonic component and calculating of literary generator setting
Rate value, read the response of electrical parameter measuring device；IEC61850 agreement of the computer by the calculation procedure of setting to reading
The calculated value of data message generator is tested, including harmonic voltage virtual value, harmonic current virtual value and corresponding harmonic wave work(
Rate value, should be error free；The response of the electrical parameter measuring device of reading occurs computer with IEC61850 protocol datas message
The setting value of device/calculated value carries out difference comparsion, calculation error；Multiple measurement points are repeated, and more different sample frequencys are to by mistake
The influence of difference.
3rd, electric energy integrating accuracy validation
The electric energy of electrical parameter measuring device measurement is the accumulated value of instantaneous power, and the error of power is exactly that electric energy algorithm misses
Difference, but electric energy error is electric energy integrating or electrical energy pulse influence amount error also including non-algorithm influence.Pass through high accurate calculagraph
The electric energy of start and stop electrical parameter measuring device is had good luck, and measures Electric energy accumulation value in a period of time, with IEC61850 protocol data messages
The performance number of generator output is multiplied by the product of time and compared, and can calculate electric energy integrating error.
The checking of the electric energy integrating degree of accuracy should be carried out after the completion of above-mentioned 1,2 projects, specifically include following steps：
3-1) computer reads the measurement point of IEC61850 protocol data messages generator setting by serial communication interface
Voltage, the virtual value of current signal and phase difference value and power calculation value；
One time of measuring of high accurate calculagraph 3-2) is set, and passes through control signal interface start and stop electrical parameter measuring device
Electric energy have good luck；
3-3) computer reads the electricity accumulated in electrical parameter measuring device measuring section by RS485 serial communication interfaces
Energy value (or calculating energy value with meter constant by accumulating electrical energy pulse number), the energy value of accumulation and power calculation value are multiplied
Difference comparsion is done with the product of time of measuring, calculates corresponding electric energy error, and compared with power error, so as to assess electric energy product
Calculation or electrical energy pulse influence amount error.
3-4) with reference to table 1, the measurement point of table 2, the electric energy for testing corresponding measurement point respectively under fundamental wave and harmonic condition accumulates
Calculation or electrical energy pulse influence amount error, record accordingly result.
The fundamental wave Algorithm Error of table 1 is analyzed and three-phase consistency check measurement point
The harmonic wave Algorithm Error of table 2 is tested and analysis measurement point
Claims (2)
1. the method for testing of the parameter algorithm based on IEC61850 sampled values, it is characterised in that first, sampled based on IEC61850
The parameter algorithm test system of value, including computer, IEC61850 protocol data messages generator, data message analyzer, electricity
Parameter measuring apparatus and high accurate calculagraph, the IEC61850 protocol datas message generator pass through serial communication interface and meter
Calculation machine is connected, and is connected respectively with electrical parameter measuring device, data message analyzer by Ethernet optical port；The electric parameter measurement
Device is connected by control signal interface with high accurate calculagraph, is connected by RS485 serial communication interfaces with computer；
The IEC61850 protocol datas message generator is a kind of according to IEC61850 agreements and chronologically outputting measurement value report
The virtual signal generator of text, possess and calculate fundamental power value, harmonic wave virtual value, the function of harmonic power value；
The high accurate calculagraph is the time control instrument that electrical parameter measuring device electric energy can be controlled to have good luck；
The data message analyzer is that a kind of data message to the generation of IEC61850 protocol data messages generator solves
Analysis, judge the whether correct data analyzer of sampled value；
The computer accepts parameter, error calculation and loads test software；
The electrical parameter measuring device is the measurement apparatus for carrying out all electrical parameter calculating, is the hardware dress of electrical parameter algorithm operation
Put；
Then, tested in the steps below,
1) electrical parameter arithmetic accuracy, resolution test under sinusoidal periodic signal,
Wherein, electrical parameter arithmetic accuracy method of testing under sinusoidal periodic signal, specifically includes following steps：
The accuracy of IEC61850 protocol data message generator outgoing messages 1-1) is verified, in the case of message is correct, is entered
Row step 1-2)；Checking message accuracy comprises the following steps：
1-1-1) by the human-computer interaction interface of IEC61850 protocol data message generators, setting voltage, current signal have
Valid value and phase difference value, IEC61850 protocol data message generators periodic signal sampled value and default as corresponding to setting value
Sample frequency is analyzed with defined sequential by IEC61850 sampling value messages to data message corresponding to the output of Ethernet optical port
Instrument and electrical parameter measuring device；IEC61850 protocol data message generators have according to the voltage of setting, current signal simultaneously
Valid value and phase difference value calculate corresponding power value and shown；
1-1-2) data message analyzer obtains the message of IEC61850 protocol data messages generator output, is assisted by IEC61850
View rule carries out code analysis, and sampled data is carried out according to sine function, sampling number, sampling resolution, frame width analysis information
Parsing, compare, judge sampled value and the accuracy of message format；
Different voltage, the virtual value of current signal and phase difference value 1-1-3) are set as measurement point, repeat step 1-1-
1) -1-1-2), verify the accuracy of outgoing message；
1-2) electrical parameter arithmetic accuracy is verified；The step 1-2) electrical parameter arithmetic accuracy is verified, including with
Lower step：
Three-phase result of calculation uniformity, stability 1-2-1) are detected first：Measurement point is chosen, passes through IEC61850 protocol datagrams
The human-computer interaction interface of literary generator, the voltage of setting measurement point, the virtual value and phase difference value of current signal, all set per phase
It is identical, IEC61850 protocol data message generators as corresponding to setting value periodic signal sampled value and default sample frequency with
Defined sequential passes through IEC61850 sampling value messages corresponding to the output of Ethernet optical port to electrical parameter measuring device；Observation electricity ginseng
Number measurement apparatus triphase parameter show value, answer consistent and stablize constant per phase show value；
1-2-2) then carry out electrical parameter Algorithm Error test：Computer reads IEC61850 agreement numbers by serial communication interface
Voltage, the virtual value of current signal and the phase difference value and power calculation value set according to message generator in measurement point, read
The response of electrical parameter measuring device；Computer is sent out the IEC61850 protocol datas message of reading by the calculation procedure of setting
The power calculation value of raw device is tested, including split-phase active and reactive power value and respective three-phase superposition value；Computer is to reading
Electrical parameter measuring device response and IEC61850 protocol data message generators setting value and power calculation value carry out
Difference comparsion, calculate error corresponding to each electrical parameter；Multiple measurement points are repeated, and more different sample frequencys are to the shadow of error
Ring；
Electrical parameter algorithm resolution test method is under sinusoidal periodic signal：Set IEC61850 protocol data message generators defeated
Go out voltage effective value 0.01V, current effective value 0.001A, electrical parameter measuring device there should be respective digital to show；
2) electrical parameter arithmetic accuracy is tested under non-sine periodic signal, specifically includes following steps：
The accuracy of IEC61850 protocol data message generator outgoing messages 2-1) is verified, in the case of message is correct, is entered
Row step 2-2)；The accuracy of message is verified, is comprised the following steps：
2-1-1) by the human-computer interaction interface of IEC61850 protocol data message generators, set fundamental wave and harmonic wave voltage,
The virtual value and phase difference value of current signal, IEC61850 protocol data message generators signal transient as corresponding to setting value are adopted
Sample value and default sample frequency with defined sequential by IEC61850 sampling value messages corresponding to the output of Ethernet optical port extremely
Data message analyzer and electrical parameter measuring device；Simultaneously IEC61850 protocol data message generators according to the fundamental wave of setting and
The voltage of harmonic wave, the virtual value of current signal and phase difference value calculate corresponding harmonic wave virtual value, total by harmonic parameters calculation formula
Performance number is simultaneously shown；
2-1-2) data message analyzer obtains the message of IEC61850 protocol data messages generator output, is assisted by IEC61850
View rule carries out code analysis, is adopted according to sampling number, sampling resolution, each frequency component functional value, frame width analysis information
The parsing of sample data, compare, judge sampled value and the accuracy of message format；
The different fundamental wave and voltage of harmonic wave, the virtual value of current signal and phase difference value 2-1-3) are set as measurement point, weight
Multiple step 2-1-1) -2-1-2), verify the accuracy of outgoing message；
2-2) electrical parameter arithmetic accuracy is verified；Comprise the following steps：
Three-phase result of calculation uniformity, stability 2-2-1) are detected first：Measurement point is chosen, passes through IEC61850 protocol datagrams
The human-computer interaction interface of literary generator, the voltage of setting measurement point, the virtual value of current signal and phase difference value, corresponding harmonic wave minute
Amount, IEC61850 protocol data message generator as setting value corresponding to periodic signal sampled value and scarce all identical per mutually setting
The sample frequency of province exports corresponding IEC61850 sampling value messages to electric parameter measurement with defined sequential by Ethernet optical port
Device；Electrical parameter measuring device triphase parameter show value is observed, answers consistent and stablizes constant per phase show value；
2-2-2) then carry out electrical parameter Algorithm Error test：Computer reads IEC61850 agreement numbers by serial communication interface
According to the measurement point voltage of message generator setting, virtual value and phase difference value, the corresponding harmonic component and power of current signal
Calculated value, read the response of electrical parameter measuring device；Computer is assisted by the calculation procedure of setting to the IEC61850 of reading
The power calculation value of view data message generator is tested, including harmonic voltage virtual value, harmonic current virtual value and corresponding
Harmonic power value；Response and IEC61850 protocol data message generator of the computer to the electrical parameter measuring device of reading
Setting value and power calculation value carry out difference comparsion, calculate error corresponding to each electrical parameter；Multiple measurement points are repeated, and ratio is less
With influence of the sample frequency to error；
3) electric energy integrating accuracy test, electrical parameter arithmetic accuracy, resolution test and non sinusoidal periodic under sinusoidal periodic signal
Carried out under signal after the completion of the test of electrical parameter arithmetic accuracy, specifically include following steps：
3-1) computer reads voltage, the electric current letter that IEC61850 protocol data messages generator is set by serial communication interface
Number virtual value and phase difference value and power calculation value；
One time of measuring of high accurate calculagraph 3-2) is set, and passes through the electricity of control signal interface start and stop electrical parameter measuring device
It can have good luck；
3-3) computer reads the energy value accumulated in electrical parameter measuring device measuring section by RS485 serial communication interfaces
Or energy value is calculated with meter constant by accumulating electrical energy pulse number, and the energy value and IEC61850 protocol datas message are sent out
The product that the power calculation value of raw device is multiplied by time of measuring does difference comparsion, calculates corresponding electric energy error, and carry out with power error
Compare, so as to assess electric energy integrating error；
Measurement point 3-4) is selected, tests the electric energy integrating error of corresponding measurement point respectively under fundamental wave and harmonic condition, records phase
Answer result.
2. method of testing according to claim 1, it is characterised in that the selection of the measurement point is advised by IEC61850 agreements
Then and actual transformer station's transformer working signal scope determines, minimum resolution 10mV, 1mA, maximum working voltage 750kV, most
Big operating current 5000A, measurement point is set by linear homogeneous to this range signal.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202048929U (en) * | 2011-03-23 | 2011-11-23 | 丰满发电厂 | Digital measuring and verifying device |
| CN202421332U (en) * | 2011-10-30 | 2012-09-05 | 云南省计量测试技术研究院 | High precision electric parameter analyzer |
| US8452565B2 (en) * | 2006-07-03 | 2013-05-28 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | HF measurement system, method for the calibration thereof, and method for determining scattering parameters with this HF measurement system |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
| CN204256149U (en) * | 2014-11-12 | 2015-04-08 | 国家电网公司 | A kind of Performance Test System of merge cells tester |
-
2015
- 2015-09-08 CN CN201510567595.3A patent/CN105093157B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8452565B2 (en) * | 2006-07-03 | 2013-05-28 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | HF measurement system, method for the calibration thereof, and method for determining scattering parameters with this HF measurement system |
| CN202048929U (en) * | 2011-03-23 | 2011-11-23 | 丰满发电厂 | Digital measuring and verifying device |
| CN202421332U (en) * | 2011-10-30 | 2012-09-05 | 云南省计量测试技术研究院 | High precision electric parameter analyzer |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
| CN204256149U (en) * | 2014-11-12 | 2015-04-08 | 国家电网公司 | A kind of Performance Test System of merge cells tester |
Non-Patent Citations (1)
| Title |
|---|
| "基于IEC61850-9-1的电能数字算法研究";王乐仁等;《电测与仪表》;20120228;第49卷(第554期);全文 * |
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