CN207717874U - A kind of digital quantity input type standard combining unit - Google Patents
A kind of digital quantity input type standard combining unit Download PDFInfo
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- CN207717874U CN207717874U CN201720904656.5U CN201720904656U CN207717874U CN 207717874 U CN207717874 U CN 207717874U CN 201720904656 U CN201720904656 U CN 201720904656U CN 207717874 U CN207717874 U CN 207717874U
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- 230000003287 optical effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000178 monomer Substances 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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Abstract
The utility model discloses a kind of digital quantity input type standard combining units, including：FT3 unpacks module and obtains analytic message for being parsed to the FT3 messages of input according to FT3 specifications；FT3 frame head lock-out pulse output modules are sent out an electric synchronization pulse when FT3 is unpacked when module parses the frame head of analytic message；Source code unloading module meets the standard message of IEC61850 standards and stores for being converted to analytic message；Packetization module, for standard message to be packaged according to 92 message format specifications of IEC61850；Ethernet sending module is sent using Ethernet by the message finished is packaged；And Ethernet frame head lock-out pulse output module, the ether network packet sent for identification, at each frame Ethernet heading simultaneously output electric pulse signal.The beneficial effects of the utility model are：It realizes and exports and trace to the source than the accurate of difference, solve the problems, such as current digital quantity input type combining unit angular difference, can not carry out monomer unit detection than difference.
Description
Technical field
The utility model belongs to intelligent substation detection technique field, and is inputted more particularly, to a kind of digital quantity
Formula standard combining unit.
Background technology
Currently, the digital quantity input type combining unit used when cooperation all -fiber or other kinds of electronic mutual inductor is big
Amount merges digital quantity input type when practical substation checks and accepts applied in the New Generation of Intelligent substation of State Grid Corporation of China
The verification of unit is all by the way that operation is boosted, flowed up in mutual inductor primary side, and test mutual inductor is closed with digital quantity input type
And the precision of unit entirety is completed.Test obtains primary current or voltage signal by boosting, up-flow device, will be primary
Voltage or current signal obtain standard secondary singal and are detected signal, standard respectively by standard mutual inductor and tested mutual inductor
Secondary singal is directly given to electronic transducer calibration instrument or combining unit tester, and electronic transducer calibration instrument or merging are single
The digital quantity signal for analog signals and digital quantity input type the combining unit output that first tester exports standard mutual inductor into
Row synchronized sampling calculates fundamental voltage amplitude and the phase angle of the two sampled signals using FFT (Fast Fourier Transform) algorithm,
Angular difference and ratio to obtain mutual inductor and digital quantity input type combining unit entirety is poor.Although there is mark in current State Grid Corporation of China
Accurate digital quantity inputs combining unit protocol specification frame format FT3, but the situation of reality is the number of each producer on the market
Amount input type combining unit input agreement still respectively have feature, or even the digital quantity input type combining unit for the producer having association
The proprietary protocol that view is not consistent with the standard agreement format that State Grid Corporation of China gives also exists.This results in logarithm at the scene
The monomer checking time cost of word amount input type combining unit can sharply increase, so not using substantially at the scene defeated to digital quantity
Enter formula combining unit and carries out monomer verification.And a problem existing for this method of overall inspection is, when mutual inductor occurs in test
It is unable to judge accurately out that be particularly due to electronic type mutual when overproof situation with the global error of digital quantity input type combining unit
Sensor or the overproof problem of the overproof overall precision for both causing to cooperate of digital quantity input type combining unit error.
Invention content
To solve the above-mentioned problems, the utility model provides a kind of digital quantity input type standard combining unit, including：
FT3 unpacks module and obtains analytic message for being parsed to the FT3 messages of input according to FT3 specifications；
FT3 frame head lock-out pulse output modules are sent out one when FT3 is unpacked when module parses the frame head of analytic message
A electricity synchronization pulse；
Source code unloading module, for analytic message to be converted to the standard message for meeting IEC61850 standards, and is deposited
Storage, wherein the message that the source code unloading module carries out is converted to no precision distortion conversion；
Packetization module, for standard message to be packaged according to IEC61850-9-2 message format specifications；
Ethernet sending module is sent using Ethernet by the message finished is packaged；And
Ethernet frame head lock-out pulse output module, the ether network packet sent for identification, in each frame Ethernet report
At literary head simultaneously output electric pulse signal.
Preferably, the digital quantity input type standard combining unit further includes：
Photoelectric conversion module, for the optical signal FT3 messages of input to be converted to electric signal FT3 messages, and by electric signal
FT3 messages are input to FT3 and unpack module；
Electrooptic conversion module, the electric signal for exporting Ethernet sending module are converted to optical signal.
Preferably, the precision of the digital quantity input type standard combining unit is 0.01 grade.
The beneficial effects of the utility model are：
The utility model design realizes a kind of digital quantity input standard combining unit, and the input source code of FT3 is converted to
IEC61850-9-2 message format specifications export, and by the ratio traced to the source, poor, angular difference is converted to amplitude, time, is distorted using no precision
Conversion so that the ratio difference of digital quantity value is 0, realizes and exports and trace to the source than the accurate of difference；It solves current digital quantity input type to close
And unit angular difference, the problem of can not carrying out monomer unit detection than difference.
Description of the drawings
By reference to the following drawings, the illustrative embodiments of the utility model can be more fully understood by：
Fig. 1 is the structural schematic diagram that standard combining unit is inputted according to the digital quantity of the preferred embodiment in the utility model.
Specific implementation mode
The illustrative embodiments of the utility model are introduced referring now to the drawings, however, the utility model can use many
Different forms is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be in order at large and complete
Open the utility model entirely, and fully convey the scope of the utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not the restriction to the utility model.In the accompanying drawings, identical
Cells/elements use identical reference numeral.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related field has consistent meaning, and is not construed as Utopian or too formal meaning.
A kind of digital quantity of preferred embodiment of the utility model inputs standard combining unit, and the input source code of FT3 is converted
It is exported for IEC61850-9-2 message formats, by the ratio traced to the source, poor, angular difference is converted to amplitude, time, realizes the essence than difference
Really exports and trace to the source.The structural schematic diagram that digital quantity inputs standard combining unit is as shown in Figure 1.
In Fig. 1, digital quantity input standard combining unit 100 is defeated by FT3 unpackings module 101, FT3 frame head lock-out pulses
Go out module 102, source code unloading module 103, packetization module 104, Ethernet sending module 105 and Ethernet frame head lock-out pulse
Output module 106 forms.
Preferably, the FT3 unpacks module 101 for being parsed to the FT3 messages of input according to FT3 specifications, obtains
Analytic message.
Preferably, the FT3 frame heads lock-out pulse output module 102 is used to parse parsing when FT3 unpacks module 101
An electric synchronization pulse is sent out when the frame head of message.
Preferably, analytic message for being converted to the message for meeting IEC61850 standards by the source code unloading module 103
Format obtains standard message, and standard message is stored.Preferably, the message that source code unloading module 103 carries out is converted to
No precision distortion conversion.
Preferably, the packetization module 104 is used to carry out standard message according to IEC61850-9-2 message format specifications
It is packaged.
Preferably, the Ethernet sending module 105 is sent using Ethernet by the message finished is packaged.
Preferably, the ether network packet that the Ethernet frame head lock-out pulse output module 106 is sent for identification, every
At one frame Ethernet heading simultaneously output electric pulse signal.
Preferably, digital quantity input standard combining unit 100 further includes photoelectric conversion module 107, the light for that will input
Signal FT3 messages are converted to electric signal FT3 messages, and electric signal FT3 messages are input to FT3 and unpack module 101；It further include electricity
Light conversion module 108, the electric signal for exporting Ethernet sending module 105 are converted to optical signal.
Preferably, the precision of digital quantity input standard combining unit 100 is 0.01 grade.
The FPGA that the internal clocking that digital quantity input standard combining unit 100 uses is 400MHz so that timestamp is most
Small resolution ratio is 2.5ns.
Since by source code unloading module, 103 carry out source code unloading processing, and source code unloading module 103 is no precision
Distortion conversion, so the ratio difference of digital quantity value is 0；The electric lock-out pulse letter that FT3 frame head lock-out pulses output module 102 exports
Number and Ethernet frame head lock-out pulse output module 106 export electric synchronization pulse difference be digital quantity value angular difference.
The utility model is described by reference to a small amount of embodiment.However, it is known in those skilled in the art,
As defined by subsidiary Patent right requirement, in addition to the utility model other embodiments disclosed above are equally fallen
In the scope of the utility model.Normally, all terms used in the claims are all according to them in the logical of technical field
Chang Hanyi is explained, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] "
It is construed at least one of described device, component etc. example with being all opened, unless otherwise expressly specified.It is disclosed herein
The step of any method, need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (3)
1. a kind of digital quantity input type standard combining unit, including：
FT3 unpacks module and obtains analytic message for being parsed to the FT3 messages of input according to FT3 specifications；
FT3 frame head lock-out pulse output modules are sent out an electricity when FT3 is unpacked when module parses the frame head of analytic message
Synchronization pulse；
Source code unloading module, for analytic message to be converted to the standard message for meeting IEC61850 standards, and is stored,
Described in the message that carries out of source code unloading module be converted to the distortion conversion of no precision；
Packetization module, for standard message to be packaged according to IEC61850-9-2 message format specifications；
Ethernet sending module is sent using Ethernet by the message finished is packaged；And
Ethernet frame head lock-out pulse output module, the ether network packet sent for identification, in each frame Ethernet heading
Place while output electric pulse signal.
2. digital quantity input type standard combining unit according to claim 1, which is characterized in that further include：
Photoelectric conversion module for the optical signal FT3 messages of input to be converted to electric signal FT3 messages, and electric signal FT3 is reported
Text is input to FT3 and unpacks module；
Electrooptic conversion module, the electric signal for exporting Ethernet sending module are converted to optical signal.
3. digital quantity input type standard combining unit according to claim 1, which is characterized in that the digital quantity input type
The precision of standard combining unit is 0.01 grade.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720904656.5U CN207717874U (en) | 2017-07-24 | 2017-07-24 | A kind of digital quantity input type standard combining unit |
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| CN201720904656.5U CN207717874U (en) | 2017-07-24 | 2017-07-24 | A kind of digital quantity input type standard combining unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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