CN206710582U - A kind of electronic transformer calibrator - Google Patents
A kind of electronic transformer calibrator Download PDFInfo
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- CN206710582U CN206710582U CN201720436833.1U CN201720436833U CN206710582U CN 206710582 U CN206710582 U CN 206710582U CN 201720436833 U CN201720436833 U CN 201720436833U CN 206710582 U CN206710582 U CN 206710582U
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Abstract
The utility model discloses a kind of electronic transformer calibrator, including industrial computer, 4 mouth switchs, core control panel, analog current/voltage acquisition plate, 4 mouth switchs respectively with industrial computer, PC, core control panel is connected, core control panel is also connected with analog current/voltage acquisition plate, the industrial computer includes industry control unit and display unit, the core control panel is by ARM processing units, DSP operation unit, control system forms, the analog current/voltage acquisition plate is by signal input unit, signal output unit, unit forms during IRIG B light B codes pair.The present apparatus, as core architecture, can be realized and standard mutual inductor, tested transformer analog voltage, the magnitude of current are carried out than qualifications such as poor, angular differences, accuracy class is 0.05 grade using DSP+FPGA+ sampling with high precision ADC.
Description
Technical field
It the utility model is related to technical field of electric power, more particularly to a kind of electronic transformer calibrator.
Background technology
Transformer is as electric energy metrical in power system and the visual plant of relay protection, and its precision and reliability is to electricity
The security of Force system is particularly important.With the propulsion of national smart grid construction, digital transformer substation, extra high voltage network
Construction advance by leaps and bounds, conventional electromagnetic transformer is also progressively substituted by electronic mutual inductor.Conventional electromagnetic transformer deposits one
Determine defect and output signal directly can not be measured with Microcomputer and protection equipment interface, the need of digital transformer substation can not be met
Ask.And lacking for conventional electromagnetic transformer is then overcome using the electronic mutual inductor of photoelectron technology and optical fiber sensing technology
Point, have become the developing direction of transformer.Development, digital transformer substation construction now for electronic mutual inductor etc. are multi-party
The problem of face will be related to transformer angular difference, be verified than difference, therefore the research of electronic transformer calibrator has very
Important meaning.
Utility model content
The purpose of this utility model is to provide a kind of electronic transformer calibrator, to solve in above-mentioned background technology
The problem of proposition.
The utility model uses following technical scheme to achieve the above object：A kind of electronic transformer calibrator, bag
Include industrial computer, 4 mouth switchs, core control panel, analog current/voltage acquisition plate, 4 mouth switchs respectively with industrial computer, PC,
Core control panel is connected, and core control panel is also connected with analog current/voltage acquisition plate, and the industrial computer includes industry control list
Member and display unit, the core control panel are made up of ARM processing units, DSP operation unit, FPGA control units, the mould
Intend current/voltage collection plate to be made up of unit when signal input unit, signal output unit, IRIG-B light B codes pair.
Unit is specially 2 road IEC60044- when the signal input unit, signal output unit and IRIG-B light B codes pair
7/8 input module, 2 road IEC61850-9-2 input modules, normal voltage/current input module, tested voltage/current/small letter
Number input module, 2 tunnel analog quantity small-signal output modules, 2 road IEC60044-7/8 output modules, B codes/PPS input modules and B
Code/PPS output modules.
Industry control unit sends control instruction, while receives the test parameter of return, carries out com-parison and analysis to returning result, obtains
Go out test result, and ultimately form formal test report, the ether that industry control unit and ARM processing units pass through 4 mouth switchs
Network interface connects together, industry control unit control ARM processing units.
ARM processing units transmit data to DSP operation unit, while ARM processing units also receive by parallel bus
Data from DSP operation unit, outer PC or industrial computer are returned to by 4 mouth switchs.
DSP operation unit transmits data to control system, FPGA controls are single by parallel address, data/address bus
Member is timely and effectively handled outside input/output signal, is then sent to useful data by address, data/address bus
DSP operation unit.
Control system is currently needed for normal voltage, the magnitude of current and the tested electricity of test by corresponding control signal selection
Pressure, electric current, small-signal amount input signal as a comparison, controlled under the control of FPGA control units according to certain sample rate
AD devices standard for manual sampling and measured signal, and the sampling instant time is provided, it can also be internal the B code times that this time, which can be,
Crystal oscillator is transferred to DSP operation unit in time from generation time, the data of sampling, DSP operation unit by the way that angular difference is calculated, than
The test datas such as difference.
IEC61850-9-2 input modules input quantity is controlled by being transferred to control system after PHY chip in FPGA
Timestamp, the digital message of IEC61850-9-2 form of the final output with time tag are stamped in MAC module in unit
As measured signal, DSP operation unit is together transferred to normal voltage or current input signal, DSP operation unit is counted
Calculation draws angular difference, than test datas such as differences.
The input quantity of IEC60044-7/8 input modules by being transferred to FPGA control units after optical-electrical converter,
Timestamp, the digital message conduct of IEC60044-7/8 form of the final output with time tag are stamped in control system
Measured signal, DSP operation unit is together transferred to normal voltage or current input signal, DSP operation unit calculate
Go out angular difference, than test datas such as differences.
The output quantity of 2 tunnel analog quantity small-signal output modules can export 0~7V voltage signal, this voltage signal conduct
Standard signal is compared by the IEC61850-9-2 signals after back production with the output of combining unit device end and draws angular difference, than difference
Etc. test data.
The output quantity of 2 road IEC60044-7/8 output modules is defeated with combining unit device end after being adopted back as standard signal
The IEC61850-9-2 signals gone out, which are compared, draws angular difference, than test datas such as differences.
The beneficial effects of the utility model are：The utility model is using DSP+FPGA+ sampling with high precision ADC as core frame
Structure accuracy class is 0.05 grade；Realize the qualification such as standard mutual inductor and the poor, angular difference of ratio of small-signal amount；Realize standard
The qualifications such as the poor, angular difference of ratio of transformer and IEC61850-9-2 digital quantity signals；Realize standard mutual inductor with
The qualifications such as the poor, angular difference of ratio of IEC60044-7/8 digital quantity signals；There is traditional undesirable mutual electromagnetic inductance during using synchronous pair of B codes
The functions such as device, electronic mutual inductor ratio error, phase error, polarity verification；2 road voltage small-signals are supported to export, FT3 is defeated
Go out；SCD and CID files can be parsed；Cell arrangement test can be merged, including：Message jitter test, packet parsing work(
The functions such as energy, message integrity test；Support harmonic wave precision checking and harmonic content analytic function；Led with experimental result form
Go out function；It can for a long time test, and preserve data.
Brief description of the drawings
Fig. 1 is the block diagram of the utility model；
Fig. 2 is the utility model principle block diagram；
Fig. 3 is the utility model standard/tested Current Voltage input sample block diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete elaboration.
As Figure 1-3, a kind of electronic transformer calibrator, including industrial computer, 4 mouth switchs, core control panel,
Analog current/voltage acquisition plate, 4 mouth switchs are connected with industrial computer, PC, core control panel respectively, and core control panel is also
Be connected with analog current/voltage acquisition plate, the industrial computer includes industry control unit and display unit, the core control panel by
ARM processing units, DSP operation unit, control system composition, the analog current/voltage acquisition plate are inputted single by signal
Unit forms when member, signal output unit, IRIG-B light B codes pair.
Unit is specially 2 road IEC60044- when the signal input unit, signal output unit and IRIG-B light B codes pair
7/8 input module, 2 road IEC61850-9-2 input modules, normal voltage/current input module, tested voltage/current/small letter
Number input module, 2 tunnel analog quantity small-signal output modules, 2 road IEC60044-7/8 output modules, B codes/PPS input modules and B
Code/PPS output modules.
Industry control unit sends control instruction, while receives the test parameter of return, carries out com-parison and analysis to returning result, obtains
Go out test result, and ultimately form formal test report, the ether that industry control unit and ARM processing units pass through 4 mouth switchs
Network interface connects together, industry control unit control ARM processing units.
ARM processing units transmit data to DSP operation unit, while ARM processing units also receive by parallel bus
Data from DSP operation unit, outer PC or industrial computer are returned to by 4 mouth switchs.
DSP operation unit transmits data to control system, FPGA controls are single by parallel address, data/address bus
Member carries out timely and effective with its quick, advantage of multiple affair parallel processing, FPGA control units to outside input/output signal
Processing, useful data is then sent to DSP operation unit by address, data/address bus.
It was found from standard/tested Current Voltage input sample block diagram, normalized current control source and tested Current Voltage are defeated
It is just the same to enter circuit, it is symmetrical on pcb board.The signal for needing to test is chosen by corresponding multidiameter option switch respectively
In, as high speed, high-precision two-way synchronized sampling ADC input.Control system is by time series stereodata ADC, adopting
Sample to Wave data and the present sample time DSP operation unit is sent to by data bus interface in time.
Control system is currently needed for normal voltage, the magnitude of current and the tested electricity of test by corresponding control signal selection
Pressure, electric current, small-signal amount input signal as a comparison, controlled under the control of FPGA control units according to certain sample rate
AD devices standard for manual sampling and measured signal, and the sampling instant time is provided, it can also be internal the B code times that this time, which can be,
Crystal oscillator is transferred to DSP operation unit in time from generation time, the data of sampling, DSP operation unit by the way that angular difference is calculated, than
Poor test data.
IEC61850-9-2 input modules input quantity is controlled by being transferred to control system after PHY chip in FPGA
Timestamp, the digital message of IEC61850-9-2 form of the final output with time tag are stamped in MAC module in unit
As measured signal, DSP operation unit is together transferred to normal voltage or current input signal, DSP operation unit is counted
Calculation draws angular difference, than poor test data.
The input quantity of IEC60044-7/8 input modules by being transferred to FPGA control units after optical-electrical converter,
Timestamp, the digital message conduct of IEC60044-7/8 form of the final output with time tag are stamped in control system
Measured signal, DSP operation unit is together transferred to normal voltage or current input signal, DSP operation unit calculate
Go out angular difference, than poor test data.
The output quantity of 2 tunnel analog quantity small-signal output modules can export 0~7V voltage signal, this voltage signal conduct
Standard signal is compared by the IEC61850-9-2 signals after back production with the output of combining unit device end and draws angular difference, than difference
Test data.
The output quantity of 2 road IEC60044-7/8 output modules is defeated with combining unit device end after being adopted back as standard signal
The IEC61850-9-2 signals gone out, which are compared, draws angular difference, than poor test data.
The present apparatus, as core architecture, can be realized to standard mutual inductor, quilt using DSP+FPGA+ sampling with high precision ADC
Survey transformer analog voltage, the magnitude of current are carried out than qualifications such as poor, angular differences, and accuracy class is 0.05 grade.
Described above is the utility model preferred embodiment, for the ordinary skill in the art, according to this reality
With new teaching, in the case where not departing from principle of the present utility model and spirit, the change that is carried out to embodiment, repair
Change, replace and modification is still fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of electronic transformer calibrator, it is characterised in that including industrial computer, 4 mouth switchs, core control panel, mould
Intend current/voltage collection plate, wherein,
4 mouth switch is connected with the industrial computer, PC, the core control panel respectively, and the core control panel is also
It is connected with the analog current/voltage acquisition plate, the industrial computer is made up of industry control unit and display unit, the core control
Making sheet is made up of ARM processing units, DSP operation unit, control system, and the analog current/voltage acquisition plate is by signal
Unit forms when input block, signal output unit, IRIG-B light B codes pair.
A kind of 2. electronic transformer calibrator according to claim 1, it is characterised in that the signal input unit
Including 2 road IEC60044-7/8 input modules, 2 road IEC61850-9-2 input modules, normal voltage/current input module, quilt
Survey voltage/current/small-signal input module；The signal output unit includes 2 tunnel analog quantity small-signal output modules and 2 tunnels
IEC60044-7/8 output modules；During the IRIG-B light B codes pair unit include during IRIG-B light B codes pair input module and
Output module during IRIG-B light B codes pair.
3. a kind of electronic transformer calibrator according to claim 1, it is characterised in that the industry control unit is sent
Control instruction, while the test parameter of return is received, com-parison and analysis is carried out to returning result, draws test result, and most end form
Into formal test report, the industry control unit and the ARM processing units are connected by the Ethernet interface of 4 mouth switch
It is connected to together, the industry control unit controls the ARM processing units.
A kind of 4. electronic transformer calibrator according to claim 2, it is characterised in that the ARM processing units
By parallel bus, the DSP operation unit is transmitted data to, while the ARM processing units are also received from the DSP
The data of arithmetic element, outer PC or the industrial computer are returned to by 4 mouth switch.
A kind of 5. electronic transformer calibrator according to claim 2, it is characterised in that the DSP operation unit
By parallel address, data/address bus, the control system is transmitted data to, the control system is to outside defeated
Enter/output signal timely and effectively handled, useful data then is sent into the DSP by address, data/address bus transports
Calculate unit.
A kind of 6. electronic transformer calibrator according to claim 2, it is characterised in that the control system
Normal voltage, the magnitude of current and the tested voltage, electric current, small-signal amount that test is currently needed for by corresponding control signal selection are used as
Contrast input signal, under the control of the control system according to certain sample rate control AD devices standard for manual sampling and by
Survey signal, and provide the sampling instant time, this time can be the B code times can also be internal crystal oscillator from generation time, adopt
The data of sample are transferred to the DSP operation unit in time, and the DSP operation unit tests number by the way that angular difference is calculated, than difference
According to.
A kind of 7. electronic transformer calibrator according to claim 2, it is characterised in that the IEC61850-9-2
Input module input quantity is by being transferred to the control system after PHY chip, the MAC moulds in the control system
Stamp timestamp in block, the digital message of IEC61850-9-2 form of the final output with time tag as measured signal,
The DSP operation unit is together transferred to normal voltage or current input signal, the DSP operation unit is calculated
Angular difference, than poor test data.
A kind of 8. electronic transformer calibrator according to claim 2, it is characterised in that the IEC60044-7/8
The input quantity of input module is beaten by being transferred to the control system after optical-electrical converter in the control system
Upper timestamp, the digital message of IEC60044-7/8 form of the final output with time tag is as measured signal, same to standard
Voltage or current input signal are together transferred to the DSP operation unit, and the DSP operation unit carries out that angular difference is calculated,
Than poor test data.
9. a kind of electronic transformer calibrator according to claim 2, it is characterised in that 2 tunnel analog quantity is small
The output quantity of signal output module can export 0~7V voltage signal, and this voltage signal is as standard signal by same after back production
The IEC61850-9-2 signals of combining unit device end output, which are compared, draws angular difference, than poor test data.
A kind of 10. electronic transformer calibrator according to claim 2, it is characterised in that 2 tunnel
The IEC61850- of combining unit device end output after the output quantity of IEC60044-7/8 output modules is adopted back as standard signal
9-2 signals, which are compared, draws angular difference, than poor test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436833.1U CN206710582U (en) | 2017-04-24 | 2017-04-24 | A kind of electronic transformer calibrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436833.1U CN206710582U (en) | 2017-04-24 | 2017-04-24 | A kind of electronic transformer calibrator |
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| CN206710582U true CN206710582U (en) | 2017-12-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
-
2017
- 2017-04-24 CN CN201720436833.1U patent/CN206710582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: 100098 Beijing city Haidian District No. 48 Zhichun Road Yingdu building C block 4 unit 2 layer Co-patentee after: Beijing Ponovo Power Co., Ltd. Patentee after: Beijing Ponovo Power Technology Co., Ltd. Address before: 100098 unit 4, building No. 48, Zhichun Road a, Haidian District, Beijing, Beijing Patentee before: Beijing Ponovo Power Co., Ltd. |