CN207007957U - Multi-measuring point difference recording wave device sychronisation - Google Patents
Multi-measuring point difference recording wave device sychronisation Download PDFInfo
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- CN207007957U CN207007957U CN201720650343.1U CN201720650343U CN207007957U CN 207007957 U CN207007957 U CN 207007957U CN 201720650343 U CN201720650343 U CN 201720650343U CN 207007957 U CN207007957 U CN 207007957U
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Abstract
The utility model discloses a kind of multi-measuring point difference recording wave device sychronisation, solves the problems, such as the synchronous recording of different measuring points oscillograph well.By by waveform generator（11）The waveform sent is arranged to the form sequentially combined by N number of continuous triangular wave, N number of continuous square wave and N number of continuous sine wave, and the special voltage signal that the device exports is accessed to a voltage channel of each recording wave device, the recorder data that single recording wave device is realized naturally is synchronous with the time shaft of special voltage signal, the special voltage signal recorded again by comparing different equipment, so as to realize the synchronization of the time shaft of different recording wave device recorder datas.Measuring point is realized more, the synchronization of the recorder data of different recording wave devices, the technical barrier for solving different measuring points synchronization recording well.
Description
Technical field
When different recording wave devices carry out recording under multi-measuring point the present invention relates to one kind, the recording wave device of different measuring points can be made
The device and its synchronous method of recording are synchronized, suitable for being recorded to the recording wave device of different manufacturers and different sample frequencys
Waveform synchronize processing.
Background technology
During power system is tested and is tested, the measurement of electrical quantity is wherein the most key link.In in general
During power system is tested and tested, measuring point quantity is more, and the Measurement channel of recording wave device is limited, generally requires to use multiple devices
Recording is carried out simultaneously, and is used while multiple devices, there can be the nonsynchronous problem of different measuring points recording, recording is asynchronous again
Result of the test can be caused deviation occur.At present, the synchronous method for solving more recording wave devices mainly has two kinds：（1）External GPS pairs
When device：This method needs every wave recording device to install external timing device additional, can increase experimental cost；Due to different GPS
Device also likely to be present error when caused by satellite-signal is strong and weak pairs, finally also result in the inaccuracy of test result.（2）
Uniform external triggers：The trigger source of whole recording wave devices is set to same voltage or current signal source by this method, all devices
Trigger condition is set unanimously, when reaching trigger condition, armamentarium while recording；But due to the sampling essence of different recording wave devices
Spend not quite identical, cause the starting point of each equipment recording inconsistent, still do not solve each equipment recorder data well not
The problem of synchronous.
The content of the invention
The invention provides a kind of multi-measuring point difference recording wave device sychronisation and synchronous method, solves difference well
The synchronous recording technical problem of measuring point oscillograph.
The present invention is that solve above technical problem by the following technical programs：
A kind of multi-measuring point difference recording wave device sychronisation, including high side voltage transformer, low-pressure side voltage transformer,
High-voltage side outlet wire current transformer, the first low-voltage side outlet current transformer, the second low-voltage side outlet current transformer, the first record
Ripple device, the second oscillograph, the 3rd oscillograph, waveform generator and industrial computer, connect on the first low-voltage side outlet current transformer
There is collection electric line, dynamic reactive compensation device is connected with the second low-voltage side outlet current transformer, high-voltage side outlet wire electric current is mutual
The three-phase current signal end of sensor corresponds to linked together with three current signal inputs of the first oscillograph respectively, high-pressure side
The three-phase voltage signal end of voltage transformer corresponds to linked together with three voltage signal inputs of the first oscillograph respectively,
The three-phase current signal end of first low-voltage side outlet current transformer corresponds to defeated with three current signals of the second oscillograph respectively
Enter end to link together, the three-phase voltage signal end of low-pressure side voltage transformer corresponds to three voltages with the second oscillograph respectively
Signal input part links together, and the three-phase current signal end of the second low-voltage side outlet current transformer corresponds to and the 3rd record respectively
Three current signal inputs of ripple device link together, the three-phase voltage signal end of low-pressure side voltage transformer correspond to respectively with
Three voltage signal inputs of the 3rd oscillograph link together, the waveform generator voltage signal with the first oscillograph respectively
The voltage signal inputs of input, the voltage signal inputs of the second oscillograph and the 3rd oscillograph link together；First
The data output end of the data output end of oscillograph, the data output end of the second oscillograph and the 3rd oscillograph respectively with for ripple
Shape slope links together to the industrial computer of axle.
Waveform generator is by triangular signal generator, square wave signal generator, sine wave signal generator, three gold
What category-oxide semiconductor field effect transistor, signal controller and signal output resistance formed；Triangular signal generator with
Branch road, square wave signal generator and the second metal-oxide that first Metal-Oxide Semiconductor field-effect transistor is composed in series
The branch road and sine wave signal generator and the 3rd Metal-Oxide Semiconductor field that thing semiconductor field effect transistor is composed in series
The branch road that effect transistor is composed in series is connected in parallel, and it is defeated to be connected with signal on the both ends after three branch circuit parallel connections
Go out resistance, the control terminal of the first Metal-Oxide Semiconductor field-effect transistor, the second Metal-Oxide Semiconductor field-effect
The control terminal of transistor and the control terminal of the 3rd Metal-Oxide Semiconductor field-effect transistor are connected with signal controller respectively
Together.
A kind of synchronous method of multi-measuring point difference recording wave device, comprises the following steps：
The first step, triangular signal generator is connected with the first Metal-Oxide Semiconductor field-effect transistor after group
Into branch road, square wave signal generator connected with the second Metal-Oxide Semiconductor field-effect transistor after the branch road that forms and
The branch circuit parallel connection that sine wave signal generator forms after being connected with the 3rd Metal-Oxide Semiconductor field-effect transistor is one
Rise, signal output resistance is connected on the both ends after three branch circuit parallel connections, by the first Metal-Oxide Semiconductor field effect transistor
The control terminal of pipe, the control terminal of the second Metal-Oxide Semiconductor field-effect transistor and the 3rd Metal-Oxide Semiconductor field
The control terminal of effect transistor links together with signal controller respectively；The both ends of signal output resistance are recorded with first respectively
The voltage signal inputs of the voltage signal inputs of ripple device, the voltage signal inputs of the second oscillograph and the 3rd oscillograph connect
It is connected together；The data of the data output end of first oscillograph, the data output end of the second oscillograph and the 3rd oscillograph are defeated
Go out end respectively with being linked together for waveform slope to the industrial computer of axle；
Second step, by the output waveform cycle of triangular-wave generator, the output waveform cycle of square-wave generator and sine wave
The output waveform cycle of generator is disposed as 20 milliseconds, by the output waveform amplitude of triangular-wave generator, square-wave generator
Output waveform amplitude and the output waveform amplitude of sine-wave generator are disposed as 5 volts；Signal controller presses waveform combination rule
Gate electrode drive signals are produced, the waveform combination rule for making waveform generator output is：The first waveform cycle is by triangular wave, one
Individual square wave and a sine wave sequentially combine, and the second wave period is by two continuous triangular waves, two continuous square waves
Sequentially combined with two continuous sine waves, by that analogy, N wave periods are by N number of continuous triangular wave, N number of continuous
Square wave and N number of continuous sine wave sequentially combine, it is complete for one from first wave period to n-th wave period
Cycle period；
3rd step, start waveform generator, the first oscillograph, the second oscillograph and the 3rd oscillograph are respectively started, gone forward side by side
Row recording works；
4th step, after completing recording, observed by industrial computer caused by the waveform generator that is recorded of the first oscillograph
The first oscillograph special voltage signal waveform based on waveform combination rule, observe what the second oscillograph was recorded by industrial computer
The second oscillograph special voltage signal waveform based on waveform combination rule caused by waveform generator, is observed by industrial computer
The 3rd oscillograph special voltage signal based on waveform combination rule caused by the waveform generator that 3rd oscillograph is recorded
Waveform；First oscillograph special voltage signal waveform, the second oscillograph special voltage signal waveform and the 3rd oscillograph is special
Waveform voltage signal is contrasted, and finds out the first complete waveform cycle of the common coincidence of three special voltage signal waveforms；
5th step, the common coincidence for finding out the 4th step the first complete waveform cycle in first sine waveform become
Rate smallest point is defined as the common recording datum mark of the first oscillograph, the second oscillograph and the 3rd oscillograph.
The present invention utilizes special voltage signal generator, synchronous with the recorder data of single recording wave device, then passes through waveform
Slope has realized measuring point more, the synchronization of the recorder data of different recording wave devices, has efficiently solved different measuring points synchronization to axle instrument
The problem of recording；For Different field wiring, varying number oscillograph, it is only necessary to meet that each oscillograph has a voltage channel and spy
Different voltage signal generator is connected, you can realizes the synchronous recording of different measuring points.
Brief description of the drawings
Fig. 1 is the multi-measuring point difference recording wave device sychronisation field connection schematic diagram of the present invention；
Fig. 2 is the circuit structure diagram of the waveform generator 11 of the present invention；
The special voltage signal waveforms that Fig. 3 is sent for the waveform generator 11 of the present invention.
Embodiment
Below according to accompanying drawing, the present invention is described in detail：
A kind of multi-measuring point difference recording wave device sychronisation, as shown in figure 1, including high side voltage transformer 1, low-pressure side
Voltage transformer 2, high-voltage side outlet wire current transformer 5, the first low-voltage side outlet current transformer 4, the second low-voltage side outlet electricity
Current transformer 7, the first oscillograph 8, the second oscillograph 9 and the 3rd oscillograph 10, connect on the first low-voltage side outlet current transformer 4
Collection electric line 3 is connected to, dynamic reactive compensation device 6, high-voltage side outlet wire electricity are connected with the second low-voltage side outlet current transformer 7
The three-phase current signal end of current transformer 5 corresponds to three current signal inputs with the first oscillograph 8 respectivelyI 1、I 2、I 3Connection
Together, the three-phase voltage signal end of high side voltage transformer 1 corresponds to defeated with three voltage signals of the first oscillograph 8 respectively
Enter endV 1、V 2、V 3Link together, the three-phase current signal end of the first low-voltage side outlet current transformer 4 corresponds to and second respectively
Three current signal inputs of oscillograph 9I 1、I 2、I 3Link together, the three-phase voltage signal of low-pressure side voltage transformer 2
End corresponds to three voltage signal inputs with the second oscillograph 9 respectivelyV 1、V 2、V 3Link together, the second low-voltage side outlet electricity
The three-phase current signal end of current transformer 7 corresponds to three current signal inputs with the 3rd oscillograph 10 respectivelyI 1、I 2、I 3Even
It is connected together, the three-phase voltage signal end of low-pressure side voltage transformer 2 corresponds to respectively believes with three voltages of the 3rd oscillograph 10
Number inputV 1、V 2、V 3Link together, as shown in Fig. 2 the Metal-Oxide Semiconductor of triangular signal generator 13 and first
Field-effect transistor（MOSFET）19 branch roads being composed in series, the Metal-Oxide Semiconductor of square wave signal generator 14 and second
Field-effect transistor（MOSFET）16 branch roads being composed in series and sine wave signal generator 15 are partly led with the 3rd metal-oxide
Body field-effect transistor（MOSFET）One end after 20 branch circuit parallel connections being composed in series is connected with one end of signal output resistance 18
Together, the Metal-Oxide Semiconductor field-effect transistor of triangular signal generator 13 and first（MOSFET）19 series connection groups
Into branch road, the Metal-Oxide Semiconductor field-effect transistor of square wave signal generator 14 and second（MOSFET）16 series connection groups
Into branch road and the Metal-Oxide Semiconductor field-effect transistor of sine wave signal generator 15 and the 3rd（MOSFET）20 series connection
The other end of the other end and signal output resistance 18 after the branch circuit parallel connection of composition links together；First metal-oxide half
Conductor field-effect transistor（MOSFET）19 control terminal, the second Metal-Oxide Semiconductor field-effect transistor（MOSFET）
16 control terminal and the 3rd Metal-Oxide Semiconductor field-effect transistor（MOSFET）20 control terminal occurs with waveform respectively
The signal controller 17 of device 11 links together；The both ends of signal output resistance 18 voltage signal with the first oscillograph 8 respectively
InputV 4, the second oscillograph 9 voltage signal inputsV 4With the voltage signal inputs of the 3rd oscillograph 10V 4It is connected to one
Rise；The data output end of the data output end of first oscillograph 8, the data output end of the second oscillograph 9 and the 3rd oscillograph 10
Respectively with being linked together for waveform slope to the industrial computer 12 of axle.
A kind of synchronous method of multi-measuring point difference recording wave device, comprises the following steps：
The first step, as shown in Fig. 2 the Metal-Oxide Semiconductor field-effect of triangular signal generator 13 and first is brilliant
Body pipe（MOSFET）19 branch roads being composed in series, the Metal-Oxide Semiconductor field-effect of square wave signal generator 14 and second are brilliant
Body pipe（MOSFET）16 branch roads being composed in series and the Metal-Oxide Semiconductor field-effect of sine wave signal generator 15 and the 3rd
Transistor（MOSFET）One end and one end of signal output resistance 18 after 20 branch circuit parallel connections being composed in series link together, and three
The Metal-Oxide Semiconductor field-effect transistor of angle wave generator 13 and first（MOSFET）19 branch roads being composed in series,
The Metal-Oxide Semiconductor field-effect transistor of square wave signal generator 14 and second（MOSFET）16 branch roads being composed in series and
The Metal-Oxide Semiconductor field-effect transistor of sine wave signal generator 15 and the 3rd（MOSFET）20 branch roads being composed in series
The other end of the other end and signal output resistance 18 after parallel connection links together；First Metal-Oxide Semiconductor field-effect
Transistor（MOSFET）19 control terminal, the second Metal-Oxide Semiconductor field-effect transistor（MOSFET）16 control terminal
With the 3rd Metal-Oxide Semiconductor field-effect transistor（MOSFET）20 control terminal respectively with special voltage signal generator
11 MOSFET signal controllers 17 link together；The both ends of signal output resistance 18 voltage with the first oscillograph 8 respectively
Signal input partV 4, the second oscillograph 9 voltage signal inputsV 4With the voltage signal inputs of the 3rd oscillograph 10V 4Connection
Together；The data of the data output end of first oscillograph 8, the data output end of the second oscillograph 9 and the 3rd oscillograph 10 are defeated
Go out end respectively with being linked together for waveform slope to the industrial computer 12 of axle；
Second step, by the output waveform cycle of triangular-wave generator 13, output waveform cycle of square-wave generator 14 and just
The output waveform cycle of string wave producer 15 is disposed as 20 milliseconds, by the output waveform amplitude of triangular-wave generator 13, square wave
The output waveform amplitude of generator 14 and the output waveform amplitude of sine-wave generator 15 are disposed as 5 volts；Signal controller 17
Gate electrode drive signals are produced by waveform combination rule, the waveform combination rule for making the output of waveform generator 11 is：First waveform week
Phase is sequentially combined by a triangular wave, a square wave and a sine wave, and the second wave period is by two continuous triangles
Ripple, two continuous square waves and two continuous sine waves sequentially combine, and by that analogy, N wave periods are by N number of continuous
Triangular wave, N number of continuous square wave and N number of continuous sine wave sequentially combine, from first wave period to n-th ripple
The shape cycle is a complete cycle cycle, as shown in Figure 3；
3rd step, start waveform generator 11, the first oscillograph 8, the second oscillograph 9 and the 3rd oscillograph 10 are respectively started
Carry out recording work；
After 4th step, completion recording, the waveform generator 11 recorded by the first oscillograph 8 of observation of industrial computer 12 is produced
Raw the first oscillograph special voltage signal waveform based on waveform combination rule, the second oscillograph 9 is observed by industrial computer 12
The second oscillograph special voltage signal waveform based on waveform combination rule caused by the waveform generator 11 recorded, passes through
Industrial computer 12 observes the 3rd record based on waveform combination rule caused by the waveform generator 11 that the 3rd oscillograph 10 is recorded
Ripple device special voltage signal waveform, find out the first oscillograph special voltage signal waveform, the second oscillograph special voltage signal wave
The first complete waveform cycle of the common coincidence of shape and the 3rd oscillograph special voltage signal waveform；
5th step, the first complete waveform cycle in the first oscillograph special voltage signal waveform cycle for finding out the 4th step
In first sine waveform rate of change smallest point be set to the recording datum mark of the first oscillograph；Second that 4th step is found out
First sine waveform rate of change smallest point in the first complete waveform cycle of oscillograph special voltage signal waveform is set to
The recording datum mark of second oscillograph；The first complete waveform for the 3rd oscillograph special voltage signal waveform that 4th step is found out
First sine waveform rate of change smallest point in cycle is set to the recording datum mark of the 3rd oscillograph；
6th step, the recording datum mark for the first oscillograph for finding out the 5th step, the second oscillograph recording datum mark and
The recording datum mark of 3rd oscillograph is defined as the synchronous base point of multi-measuring point difference recording wave device.
The positive and negative electrode of each oscillograph voltage channel is respectively in "+" corresponding in fig. 2 in parallel and "-" jack.In industrial computer
The waveform slope of each oscillograph is set to find out first complete waveform week according to wave character to axle tool software, the software in 12
First interim sine waveform, its waveform rate of change is calculated, choose waveform rate of change smallest point datum mark as a comparison, will
The special voltage signal time axle of each oscillograph synchronizes.The special voltage recorded due to the recorder data of each oscillograph with it
Signal is that nature is synchronous, and the time shaft for completing each oscillograph recorder data immediately is synchronous.
Above is the typically used as citing of multi-measuring point difference recording wave device sychronisation and synchronous method, according to live actual
Test case, the increase and decrease of recording wave device quantity is connect for scene, and recording wave device connects the change of point position, the present invention
Multi-measuring point difference recording wave device sychronisation and synchronous method it is applicable.
Claims (2)
1. a kind of multi-measuring point difference recording wave device sychronisation, including high side voltage transformer（1）, low-pressure side voltage transformer
（2）, high-voltage side outlet wire current transformer（5）, the first low-voltage side outlet current transformer（4）, the second low-voltage side outlet electric current it is mutual
Sensor（7）, the first oscillograph（8）, the second oscillograph（9）, the 3rd oscillograph（10）, waveform generator（11）And industrial computer
（12）, the first low-voltage side outlet current transformer（4）On be connected with collection electric line（3）, the second low-voltage side outlet current transformer
（7）On be connected with dynamic reactive compensation device（6）, high-voltage side outlet wire current transformer（5）Three-phase current signal end it is right respectively
Should be with the first oscillograph（8）Three current signal inputs link together, high side voltage transformer（1）Three-phase voltage
Signal end corresponds to and the first oscillograph respectively（8）Three voltage signal inputs link together, the first low-voltage side outlet electricity
Current transformer（4）Three-phase current signal end respectively correspond to the second oscillograph（9）Three current signal inputs be connected to
Together, low-pressure side voltage transformer（2）Three-phase voltage signal end respectively correspond to the second oscillograph（9）Three voltage signals
Input links together, the second low-voltage side outlet current transformer（7）Three-phase current signal end respectively correspond to the 3rd record
Ripple device（10）Three current signal inputs link together, low-pressure side voltage transformer（2）Three-phase voltage signal end point
Dui Ying not be with the 3rd oscillograph（10）Three voltage signal inputs link together, it is characterised in that waveform generator
（11）Respectively with the first oscillograph（8）Voltage signal inputs, the second oscillograph（9）Voltage signal inputs and the 3rd record
Ripple device（10）Voltage signal inputs link together；First oscillograph（8）Data output end, the second oscillograph（9）'s
Data output end and the 3rd oscillograph（10）Data output end respectively with the industrial computer for waveform slope to axle（12）Connection
Together.
A kind of 2. multi-measuring point difference recording wave device sychronisation according to claim 1, it is characterised in that waveform generator
（11）It is by triangular signal generator（13）, square wave signal generator（14）, sine wave signal generator（15）, three gold
Category-oxide semiconductor field effect transistor, signal controller（17）With signal output resistance（18）Composition；Triangular signal
Generator（13）With the first Metal-Oxide Semiconductor field-effect transistor（19）Branch road, the square-wave signal being composed in series occur
Device（14）With the second Metal-Oxide Semiconductor field-effect transistor（16）The branch road and sine wave signal generator being composed in series
（15）With the 3rd Metal-Oxide Semiconductor field-effect transistor（20）The branch road being composed in series is connected in parallel,
Signal output resistance is connected with both ends after three branch circuit parallel connections（18）,
First Metal-Oxide Semiconductor field-effect transistor（19）Control terminal, the second Metal-Oxide Semiconductor field-effect
Transistor（16）Control terminal and the 3rd Metal-Oxide Semiconductor field-effect transistor（20）Control terminal respectively with signal control
Device processed（17）Link together.
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| CN201720650343.1U CN207007957U (en) | 2017-06-07 | 2017-06-07 | Multi-measuring point difference recording wave device sychronisation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024632A (en) * | 2017-06-07 | 2017-08-08 | 国网山西省电力公司电力科学研究院 | Multi-measuring point difference recording wave device sychronisation and synchronous method |
| CN116760846A (en) * | 2023-08-21 | 2023-09-15 | 国网山东省电力公司日照供电公司 | Double-end fault recording data synchronization method and system based on first zero crossing point identification |
-
2017
- 2017-06-07 CN CN201720650343.1U patent/CN207007957U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024632A (en) * | 2017-06-07 | 2017-08-08 | 国网山西省电力公司电力科学研究院 | Multi-measuring point difference recording wave device sychronisation and synchronous method |
| CN107024632B (en) * | 2017-06-07 | 2023-03-24 | 国网山西省电力公司电力科学研究院 | Synchronization device and synchronization method for multi-measuring-point different wave recording equipment |
| CN116760846A (en) * | 2023-08-21 | 2023-09-15 | 国网山东省电力公司日照供电公司 | Double-end fault recording data synchronization method and system based on first zero crossing point identification |
| CN116760846B (en) * | 2023-08-21 | 2023-11-14 | 国网山东省电力公司日照供电公司 | Double-end fault recording data synchronization method and system based on first zero crossing point identification |
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