CN103901384B - Analog quantity and digital quantity outputting standard power source detection device and method - Google Patents
Analog quantity and digital quantity outputting standard power source detection device and method Download PDFInfo
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Abstract
The invention discloses a kind of analogue signal and digital quantity outputting standard power source detection device, including Signal-regulated kinase, A/D analog-digital converter, DSP unit, IEC61850/FT3 data demodulator, message analysis instrument, Error Calculator and control display module；Signal-regulated kinase includes simulating electrician's signal condition unit and analog electronic signal conditioning unit；Electrician's signal condition unit, A/D analog-digital converter, DSP unit are linked in sequence successively, detect for standard analog electrician's signal power source；Analog electronic signal conditioning unit, A/D analog-digital converter, DSP unit detect for standard analog electronic signal power source；IEC61850/FT3 demodulator is connected with DSP unit, detects for standardized digital signal power source.Forceful electric power electrician's type simulated signal power source both can be detected by the present invention, can test light current electron type analogue signal power source, IEC61850/FT3 digital power signal source again, be analyzed data message and event.
Description
Technical field
The present invention relates to electric-power metering power source detection field, specifically a kind of analogue signal and IEC61850/FT3 digital output calibration power source detection device and method.
Background technology
Along with appearance and the development of relevant art of IEC61850 digital transformer substation standard, digitized, networking electric energy meter are born therewith.Detect the calibration power source of its performance, debugging apparatus also uses and gives birth to.In addition to traditional electrician's signal power source (emulation electromagnetic transformer), occur in that the most again electronic signal power source (analogue simulation output type electronic mutual inductor), IEC61850/FT3 numeric type signal power source (emulation combining unit/sensor with data readout electronic mutual inductor) and digital transformer substation Various types of data/event generator.The most how to detect these devices, just become vast metrological personnel concern.The most traditional electrician's signal power source has corresponding detection equipment, can measure the degree of stability of all kinds of electrical parameters, harmonic wave, degree of unbalancedness and device of signal, the Specifications in standard deviation constant power source.But for novel signal power source or the detection technique of a combination thereof device, Various types of data/event generator etc., equipment or blank.
Summary of the invention
For solving prior art problem, the invention provides a kind of analogue signal and IEC61850/FT3 digital output calibration power source multifunctional detecting device and method, provide the detection device of the simulators such as a kind of simulation (strong and weak electricity signal) power source/digital power signal source/data event generator, simulation electric energy standard, numeral electric energy standard, that data message analyser carries out function is integrated, forms the detection device of power source arrangement more than, multifunctional comprehensive signal source checking device.
The technical scheme is that a kind of analogue signal and digital quantity outputting standard power source detection device, digital quantity of the present invention is IEC61850/FT3 digital quantity, including Signal-regulated kinase, A/D analog-digital converter, DSP unit, IEC61850/FT3 data demodulator, message analysis instrument, Error Calculator；Signal-regulated kinase, A/D analog-digital converter, DSP unit, Error Calculator are linked in sequence successively, and message analysis instrument, IEC61850/FT3 data demodulator are all connected with DSP unit.
Signal-regulated kinase includes simulating electrician's signal condition unit and analog electronic signal conditioning unit；Simulation electrician's signal condition unit, A/D analog-digital converter, DSP unit are linked in sequence successively, are used for simulating the detection of electrician's signal power source；Analog electronic signal conditioning unit, A/D analog-digital converter, DSP unit are linked in sequence successively and detect for analog electronic signal power source；Message analysis instrument, IEC61850/FT3 demodulator are connected with DSP unit, detect for digital signal standard power source.By the annexation of above-mentioned intermodule, the present invention solves simulation electrician's signal, analog electronic signal and the detection of digital signal standard power source；Meanwhile, the pulse delivery outlet of DSP unit is calibration pulse output interface, it is possible to the metering for electric energy meter provides calibration pulse signal.Under conditions of using lower cost, it is achieved that multiple standards power source detects.
Present invention additionally comprises control display module, control display module and include display and man-machine interaction unit, microprocessor and interface unit, show and man-machine interaction unit, interface unit are all connected with microprocessor, message analysis instrument is connected with display and man-machine interaction unit, and display and man-machine interaction unit receive the data signal of message analysis instrument and show.Display and man-machine interaction unit can receive the data signal of message analysis instrument and show, can explicit message analyser data in real time, convenient detect during data check.
Message analysis unit, for being analyzed digital signal, data event, carries out performance detection to the dynamic parameter of message output timing.
A/D analog-digital converter, IEC61850/FT3 data demodulator are connected by data/address bus with DSP unit.Data transmission bauds is fast.
Interface unit includes that USB interface, RS232 interface and Ethernet interface, USB interface, RS232 interface, Ethernet interface are all connected with microprocessor, facilitates this patent to transmit with external equipment data.Display and man-machine interaction unit include display screen, button, keyboard and mouse.A/D analog-digital converter is 6 tunnels, receives three-phase voltage, three-phase current analogue signal respectively.
Analogue signal and IEC61850/FT3 digital output calibration power source detection method, including accurate synchronization detection between simulation electrician's signal standards power source detection, the detection of analog electronic signal calibration power source, the detection of digital signal standard power source and signal standards power source, specifically comprise the following steps that
S01, simulation electrician's signal standards power source detection: the three-phase voltage of simulation electrician's signal standards power source output, after current signal is, by electrician's signal condition cell processing, the measurement signal mated with analog-digital converter input, transmission to A/D analog-digital converter is converted into digital quantity, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation to the digital data received, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of simulation electrician's signal standards power source output, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved the whole detection to simulation electrician's signal standards power source；
S02, analog electronic signal calibration power source is detected: the three-phase voltage of analog electronic signal calibration power source output, current signal is processed as being converted into digital quantity with sending after the analog-digital converter measurement signal that mates of input to A/D analog-digital converter by analog electronic signal conditioning unit, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation to the digital data received, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of the output of analog electronic signal calibration power source, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved the whole detection to analog electronic signal calibration power source；
S03, digital signal standard power source detects: the digital signal of digital power signal source output delivers to IEC61850/FT3 demodulator respectively, message analysis instrument and Error Calculator, IEC61850/FT3 data demodulator restores original sample value, data process is carried out again by DSP unit, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of the output of digital signal standard power source, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave of signal source, degree of unbalancedness, degree of stability, standard deviation technical specification are calculated, it is achieved the whole detection to digital standard power source；Meanwhile, message analysis instrument receives the digital signal of digital signal standard power source output, and digital signal carries out message analysis, obtains desired value and dependent event responsive state；
S04, signal standards power source accurate synchronization detects, the electrical energy pulse of simulation electrician's signal standards power source metering of S01, the electrical energy pulse of analog electronic signal calibration power source metering of S02, the digital signal standard power source electrical energy pulse of S03 are compared to each other and calculate difference by Error Calculator, and output display, in order to measure comparison between each signal source.
Present invention additionally comprises checking electronic type transformers, specifically include following steps:
1) High-voltage Signal Generator sends high-voltage signal simultaneously to mock standard transformer, tested simulation electronic formula transformer and FT3 sensor with data readout electronic mutual inductor；
2) the tested analog electronic signal of simulation output type electronic mutual inductor output and electrician's signal of mock standard transformer output are respectively sent to analog electronic signal conditioning unit, simulation electrician's signal condition unit is processed as with A/D analog-digital converter after inputting the measurement signal mated sending two input channels to A/D analog-digital converter, and it is converted into digital quantity, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation and analysis to the two groups of digital quantities received, compare the difference in magnitude of tested simulation electronic formula transformer and mock standard transformer output signal, phase contrast, and the display of result is carried out by microprocessor, achieve the verification of simulation output type electronic mutual inductor；
3) tested FT3 sensor with data readout electronic mutual inductor output IEC61850/FT3 digital quantity restores original sample value to IEC61850/FT3 data demodulator, IEC61850/FT3 data demodulator, is transferred to DSP unit by internal bus；Simultaneously, simulation electrician's signal of mock standard transformer output sends to send after being, to simulation electrician's signal condition cell processing, the measurement signal mated with the input of A/D analog-digital converter and is converted into digital quantity to A/D analog-digital converter, and described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter；DSP unit carries out data operation and analysis to the two groups of digital quantities received, relatively tested FT3 sensor with data readout electronic mutual inductor and the difference in magnitude of mock standard transformer output signal, phase contrast, and the display of result is carried out by microprocessor, it is achieved that the verification of sensor with data readout electronic mutual inductor；
4) DSP unit comparison step 2), in step 3) tested simulation output type electronic mutual inductor and) amplitude of tested FT3 sensor with data readout electronic mutual inductor output signal, phase information, it is achieved electric mutual inductor verifies.
Beneficial effect of the present invention includes, this system possesses mould, number power source and data event emulator plurality of devices detection function, both forceful electric power electrician's type simulated signal power source can be detected, light current electron type analogue signal power source can be detected again, also can detect the digital power source (message) that various agreements export, the data message and the event that represent its signal are analyzed.Implanting electrical analog signals and digital power signal source detection function in conventional analog signal power source detection device, be the technical scheme of a kind of optimization, hardware is few, low cost.
Further, the present invention also can realize verifying electric mutual inductor, measures mock standard transformer, electrician's signal of electric mutual inductor output, electronic signal, digital quantity signal, the convenient error detected between tested transformer and standard mutual inductor simultaneously.
Accompanying drawing explanation
Fig. 1 is analogue signal of the present invention and IEC61850/FT3 digital output calibration power source structure of the detecting device schematic diagram；
Fig. 2 is analog quantity of the present invention and IEC61850 digital output calibration power source detection method schematic diagram；
Fig. 3 is that electric mutual inductor of the present invention verifies schematic diagram.
Detailed description of the invention
Being described in further detail technical solution of the present invention with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, a kind of analogue signal and digital quantity outputting standard power source detection device, digital quantity of the present invention is IEC61850/FT3 digital quantity, including Signal-regulated kinase, A/D analog-digital converter, DSP unit, IEC61850/FT3 data demodulator, message analysis instrument, Error Calculator and control display module；Signal-regulated kinase, A/D analog-digital converter, DSP unit, Error Calculator are linked in sequence successively, and message analysis instrument, IEC61850/FT3 data demodulator are all connected with DSP unit.
Signal-regulated kinase includes simulating electrician's signal condition unit and analog electronic signal conditioning unit；Simulation electrician's signal condition unit, A/D analog-digital converter, DSP unit are linked in sequence successively, are used for simulating the detection of electrician's signal power source；Analog electronic signal conditioning unit, A/D analog-digital converter, DSP unit are linked in sequence successively and detect for analog electronic signal power source；Message analysis instrument, IEC61850/FT3 demodulator are connected with DSP unit, detect for digital signal standard power source.The calibration pulse delivery outlet that pulse delivery outlet is this device of DSP unit, as the benchmark in measured power source.
Control display module and include display and man-machine interaction unit, microprocessor and interface unit, show and man-machine interaction unit, interface unit are all connected with microprocessor, message analysis instrument is connected with display and man-machine interaction unit, and display and man-machine interaction unit receive the data signal of message analysis instrument and show.Display and man-machine interaction unit can receive the data signal of message analysis instrument and show.Message analysis instrument, EC61850/FT3 demodulator digital signal input ports are connected.
Message analysis unit, for being analyzed digital signal, data event, carries out performance detection to the dynamic parameter of message output timing.
A/D analog-digital converter, IEC61850/FT3 data demodulator are connected by data/address bus with DSP unit.
Interface unit includes that USB interface, RS232 interface and Ethernet interface, USB interface, RS232 interface, Ethernet interface are all connected with microprocessor.Display and man-machine interaction unit include display screen, button, keyboard and mouse.A/D analog-digital converter is 6 tunnels, receives three-phase voltage, three-phase current analogue signal respectively.
Analogue signal and IEC61850/FT3 digital output calibration power source detection method, including accurate synchronization detection between simulation electrician's signal standards power source detection, the detection of analog electronic signal calibration power source, the detection of digital signal standard power source and signal standards power source, specifically comprise the following steps that
S01, simulation electrician's signal standards power source (electrician's signal standards power source) detection: the three-phase voltage of simulation electrician's signal standards power source output, after current signal is, by electrician's signal condition cell processing, the measurement signal mated with analog-digital converter input, transmission to A/D analog-digital converter is converted into digital quantity, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation to the digital data received, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of simulation electrician's signal standards power source output, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved the whole detection to simulation electrician's signal standards power source；
S02, analog electronic signal calibration power source (electronic signal calibration power source) is detected: the three-phase voltage of analog electronic signal calibration power source output, current signal is processed as being converted into digital quantity with sending after the analog-digital converter measurement signal that mates of input to A/D analog-digital converter by analog electronic signal conditioning unit, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation to the digital data received, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of the output of analog electronic signal calibration power source, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved the whole detection to analog electronic signal calibration power source；
S03, digital signal standard power source (IEC61850/FT3 signal standards power source) detects: the digital signal of digital power signal source output delivers to IEC61850/FT3 demodulator respectively, message analysis instrument and Error Calculator, IEC61850/FT3 data demodulator restores original sample value, data process is carried out again by DSP unit, calculate relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing pulse and the electrical energy pulse of DSP unit output described in this step of the output of digital signal standard power source, calculate the electric energy error of tested power source；Meanwhile, the harmonic wave of signal source, degree of unbalancedness, degree of stability, standard deviation technical specification are calculated, it is achieved the whole detection to digital standard power source；Meanwhile, message analysis instrument receives the digital signal of digital signal standard power source output, and digital signal carries out message analysis, obtains desired value and dependent event responsive state；
S04, signal standards power source accurate synchronization detects, the electrical energy pulse of simulation electrician's signal standards power source metering of S01, the electrical energy pulse of analog electronic signal calibration power source metering of S02, the digital signal standard power source electrical energy pulse of S03 are compared to each other and calculate difference by Error Calculator, and output display, in order to measure comparison between each signal source (simulation electrician's signal standards power source, analog electronic signal calibration power source, digital signal standard power source).
Present invention additionally comprises electric mutual inductor verification, specifically include following steps:
1) High-voltage Signal Generator sends high-voltage signal simultaneously to mock standard transformer, tested simulation electronic formula transformer and FT3 sensor with data readout electronic mutual inductor；
2) analog electronic signal and electrician's signal of mock standard transformer output that tested simulation output type electronic mutual inductor (simulation electronic transformer) exports are respectively sent to analog electronic signal conditioning unit, simulation electrician's signal condition unit is processed as with A/D analog-digital converter after inputting the measurement signal mated sending two input channels to A/D analog-digital converter, and it is converted into digital quantity, described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter, DSP unit carries out data operation and analysis to the two groups of digital quantities received, compare the difference in magnitude of tested simulation electronic formula transformer and mock standard transformer output signal, phase contrast, and the display of result is carried out by microprocessor, achieve the verification of simulation output type electronic mutual inductor；
3) tested FT3 sensor with data readout electronic mutual inductor output IEC61850/FT3 digital quantity restores original sample value to IEC61850/FT3 data demodulator, IEC61850/FT3 data demodulator, is transferred to DSP unit by internal bus；Simultaneously, simulation electrician's signal of mock standard transformer output sends to send after being, to simulation electrician's signal condition cell processing, the measurement signal mated with the input of A/D analog-digital converter and is converted into digital quantity to A/D analog-digital converter, and described digital quantity is transferred to DSP unit by internal data bus by A/D analog-digital converter；DSP unit carries out data operation and analysis to the two groups of digital quantities received, relatively tested FT3 sensor with data readout electronic mutual inductor and the difference in magnitude of mock standard transformer output signal, phase contrast, and the display of result is carried out by microprocessor, it is achieved that the verification of sensor with data readout electronic mutual inductor；
4) DSP unit comparison step 2), in step 3) tested simulation output type electronic mutual inductor and) amplitude of tested FT3 sensor with data readout electronic mutual inductor output signal, phase information, it is achieved electric mutual inductor verifies.
Below it is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. analog quantity and digital quantity outputting standard power source detection device, it is characterised in that include Signal-regulated kinase, A/D modulus
Transducer, DSP unit, IEC61850/FT3 data demodulator, message analysis instrument and Error Calculator；Signal condition mould
Block, A/D analog-digital converter, DSP unit, Error Calculator are linked in sequence successively, described message analysis instrument with
IEC61850/FT3 data demodulator is connected；
Described Signal-regulated kinase includes simulating electrician's signal condition unit and analog electronic signal conditioning unit；Simulation electrician's signal condition
Unit, A/D analog-digital converter, DSP unit are linked in sequence successively, are used for simulating the detection of electrician's signal power source；
Described simulation electrician's signal standards power source detection specifically includes following steps: simulate the three-phase of electrician's signal standards power source output
After voltage, current signal are, by electrician's signal condition cell processing, the measurement signal mated with analog-digital converter input, send extremely
A/D analog-digital converter is converted into digital quantity, and described digital quantity is transferred to DSP by internal data bus by A/D analog-digital converter
Unit, DSP unit carries out data operation to the digital data received, and calculates relevant voltage, electric current, power, phase place electricity
Work parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing simulation electrician
The pulse of signal standards power source output and the electrical energy pulse of DSP unit output described in this step, calculate tested power source
Electric energy error；Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved to simulation
The whole detection of electrician's signal standards power source；
Analog electronic signal conditioning unit, A/D analog-digital converter, DSP unit are linked in sequence successively, for analog electronic signal power
Source is detected；
Described analog electronic signal calibration power source is detected and is specifically included following steps: the three-phase of analog electronic signal calibration power source output
Voltage, current signal send after being processed as, by analog electronic signal conditioning unit, the measurement signal mated with analog-digital converter input
Being converted into digital quantity to A/D analog-digital converter, described digital quantity is transferred to by A/D analog-digital converter by internal data bus
DSP unit, DSP unit to receive digital data carry out data operation, calculate relevant voltage, electric current, power,
Phase place electrical parameter and the energy value of accumulation, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing mould
Intend pulse and the electrical energy pulse of DSP unit output described in this step of the output of electronic signal calibration power source, calculate tested merit
The electric energy error in rate source；The harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification simultaneously, it is achieved right
The whole detection in analog electronic signal calibration power source；
IEC61850/FT3 demodulator is connected with DSP unit, detects for digital signal standard power source；
The detection of described digital signal standard power source specifically includes following steps: the digital signal of digital power signal source output is delivered to respectively
IEC61850/FT3 demodulator, message analysis instrument and Error Calculator, IEC61850/FT3 data demodulator restores original adopting
Sample value, then carry out data process by DSP unit, calculate relevant voltage, electric current, power, phase place electrical parameter and tire out
Long-pending energy value, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing digital signal standard power source
The pulse of output and the electrical energy pulse of DSP unit output described in this step, calculate the electric energy error of tested power source；With
Time, calculate the harmonic wave of signal source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved to digital standard power source
Whole detection；Meanwhile, message analysis instrument receives the digital signal of digital signal standard power source output, carries out digital signal
Message analysis, obtains desired value and dependent event responsive state；
Message analysis unit, for being analyzed digital signal, data event, carries out performance inspection to the dynamic parameter of message output timing
Survey；
Described A/D analog-digital converter, IEC61850/FT3 data demodulator, microprocessor, message analysis instrument pass through with DSP unit
Data/address bus connects.
Analog quantity the most according to claim 1 and digital quantity outputting standard power source detection device, it is characterised in that also include
Control display module, control display module include display and man-machine interaction unit, microprocessor and interface unit, described display and
Man-machine interaction unit, interface unit are all connected with microprocessor, and described message analysis instrument is connected with display and man-machine interaction unit
Connect.
Analog quantity the most according to claim 2 and digital quantity outputting standard power source detection device, it is characterised in that described in connect
Mouth unit includes that USB interface, RS232 interface and Ethernet interface, described USB interface, RS232 interface, Ethernet connect
Mouth is all connected with described microprocessor.
Analog quantity the most according to claim 1 and digital quantity outputting standard power source detection device, it is characterised in that described
A/D analog-digital converter is 6 tunnels, receives three-phase voltage, three-phase current analogue signal respectively.
Analog quantity the most according to claim 2 and digital quantity outputting standard power source detection device, it is characterised in that described aobvious
Show and man-machine interaction unit includes display screen, button, keyboard and mouse.
6. analog quantity and digital quantity outputting standard power source detection method, it is characterised in that comprise the following steps,
S01, simulation electrician's signal standards power source detection: the three-phase voltage of simulation electrician's signal standards power source output, current signal
After being, by electrician's signal condition cell processing, the measurement signal mated with analog-digital converter input, send to A/D analog digital conversion
Device is converted into digital quantity, and described digital quantity is transferred to DSP unit, DSP by internal data bus by A/D analog-digital converter
Unit carries out data operation to the digital data received, and calculates relevant voltage, electric current, power, phase place electrical parameter and tires out
Long-pending energy value, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing simulation electrician's signal standards merit
The pulse of rate source output and the electrical energy pulse of DSP unit output described in this step, calculate the electric energy error of tested power source；
Meanwhile, the harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved to simulation electrician's signal post
The whole detection of quasi-power source；
S02, analog electronic signal calibration power source detection: the three-phase voltage of analog electronic signal calibration power source output, current signal
It is processed as turning with sending after the analog-digital converter measurement signal that mates of input to A/D modulus by analog electronic signal conditioning unit
Parallel operation is converted into digital quantity, and described digital quantity is transferred to DSP unit, DSP by internal data bus by A/D analog-digital converter
Unit carries out data operation to the digital data received, and calculates relevant voltage, electric current, power, phase place electrical parameter and tires out
Long-pending energy value, and send corresponding electrical energy pulse to Error Calculator, Error Calculator is by comparing analog electronic signal standard merit
The pulse of rate source output and the electrical energy pulse of DSP unit output described in this step, calculate the electric energy error of tested power source；
The harmonic wave in signal calculated source, degree of unbalancedness, degree of stability, standard deviation technical specification simultaneously, it is achieved to analog electronic signal standard
The whole detection of power source；
S03, digital signal standard power source detects: the digital signal of digital power signal source output is delivered to IEC61850/FT3 respectively and solved
Adjusting device, message analysis instrument and Error Calculator, IEC61850/FT3 data demodulator restores original sample value, then passes through
DSP unit carries out data process, calculates relevant voltage, electric current, power, phase place electrical parameter and the energy value of accumulation, and
Send corresponding electrical energy pulse to Error Calculator, the pulse that Error Calculator exports by comparing digital signal standard power source and basis
Described in step, the electrical energy pulse of DSP unit output, calculates the electric energy error of tested power source；Meanwhile, signal source is calculated
Harmonic wave, degree of unbalancedness, degree of stability, standard deviation technical specification, it is achieved the whole detection to digital standard power source；With
Time, message analysis instrument receives the digital signal of digital signal standard power source output, digital signal carries out message analysis, obtains
Desired value and dependent event responsive state；
S04, signal standards power source accurate synchronization detects, and Error Calculator is by simulation electrician's signal standards power source metering of S01
Electrical energy pulse, the electrical energy pulse of analog electronic signal calibration power source metering of S02, the digital signal standard power source meter of S03
The electrical energy pulse of amount is compared to each other and calculates difference, and output display, in order to measure comparison between each signal source.
Analog quantity the most according to claim 6 and digital quantity outputting standard power source detection method, it is characterised in that also include
Analysis to data message, data message generator output IEC61850/FT3 resolves report to message analysis instrument, message analysis instrument
Show in display and man-machine interaction unit after literary composition.
Analog quantity the most according to claim 6 and digital quantity outputting standard power source detection method, it is characterised in that also include
Electric mutual inductor verifies, and specifically includes following steps:
1) High-voltage Signal Generator sends high-voltage signal simultaneously to mock standard transformer, tested simulation electronic formula transformer and FT3
Sensor with data readout electronic mutual inductor；
2) analog electronic signal of tested simulation output type electronic mutual inductor output and electrician's signal of mock standard transformer output
Be respectively sent to analog electronic signal conditioning unit, simulation electrician's signal condition unit is processed as with defeated with A/D analog-digital converter
Send two input channels to A/D analog-digital converter after entering the measurement signal of coupling, and be converted into digital quantity, A/D modulus
Described digital quantity is transferred to DSP unit by internal data bus by transducer, the DSP unit two groups of digital quantities to receiving
Carry out data operation and analysis, compare the amplitude of tested simulation electronic formula transformer and mock standard transformer output signal
Difference, phase contrast, and the display of result is carried out by microprocessor, it is achieved that the verification of simulation output type electronic mutual inductor；
3) tested FT3 sensor with data readout electronic mutual inductor output IEC61850/FT3 digital quantity demodulates to IEC61850/FT3 data
Device, IEC61850/FT3 data demodulator restores original sample value, is transferred to DSP unit by internal bus；Meanwhile,
Simulation electrician's signal of mock standard transformer output sends extremely simulation electrician's signal condition cell processing
Sending after the measurement signal of device input coupling and be converted into digital quantity to A/D analog-digital converter, A/D analog-digital converter is by inside
Described digital quantity is transferred to DSP unit by data/address bus；DSP unit the two groups of digital quantities received are carried out data operation with
Analysis, relatively tested FT3 sensor with data readout electronic mutual inductor and the difference in magnitude of mock standard transformer output signal,
Phase contrast, and the display of result is carried out by microprocessor, it is achieved that the verification of sensor with data readout electronic mutual inductor；
4) DSP unit comparison step 2), step 3) in tested simulation output type electronic mutual inductor and tested FT3 numeral output
The amplitude of type electronic mutual inductor output signal, phase information, it is achieved electric mutual inductor verifies.
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| CN104898005B (en) * | 2015-07-01 | 2018-06-05 | 贵州电网有限责任公司电力调度控制中心 | The test device of relay protection mixing output |
| CN105823998A (en) * | 2016-03-21 | 2016-08-03 | 中国电力科学研究院 | Energy efficiency monitoring terminal automatic performance detection system and method and correlated monitoring method |
| CN105911495A (en) * | 2016-04-12 | 2016-08-31 | 国网江苏省电力公司电力科学研究院 | Analog standard source with IEC61850 digital interface and testing method thereof |
| CN106896253B (en) * | 2017-03-13 | 2023-06-09 | 烟台东方威思顿电气有限公司 | Digital device of live plug-in electronic transformer |
| CN107300651A (en) * | 2017-07-24 | 2017-10-27 | 中国电力科学研究院 | A kind of digital quantity input type standard combining unit |
| CN113219395B (en) * | 2021-04-29 | 2024-01-23 | 云南电网有限责任公司电力科学研究院 | Dynamic load electric energy metering influence test system and method |
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