CN105372611B - The reliability verification method of SV data is acquired based on wave recording device - Google Patents
The reliability verification method of SV data is acquired based on wave recording device Download PDFInfo
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- CN105372611B CN105372611B CN201510843256.3A CN201510843256A CN105372611B CN 105372611 B CN105372611 B CN 105372611B CN 201510843256 A CN201510843256 A CN 201510843256A CN 105372611 B CN105372611 B CN 105372611B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The present invention relates to the reliability verification methods that SV data are acquired based on wave recording device.N group SV messages are set, and specified time delay, voltage channel fundamental wave, current channel fundamental wave and the harmonic content of SV link channels are set；Per at regular intervals to the channel of each group SV links application harmonic wave, voltage and current.The waveform generated using wave recording device record each group SV data, each harmonic content in each waveform, voltage and current amplitude precision and phase difference with phase channel are obtained by tester, and judge whether the error requirements for meeting the SV data reliabilities of wave recording device acquisition, if satisfied, can verify that has certain reliability using the SV data that the wave recording device is acquired.Process that the present invention verifies the method for wave recording device acquisition SV data reliabilities is simple, testing efficiency and accuracy are high.
Description
Technical field
The present invention relates to the reliability verification methods that SV data are acquired based on wave recording device, belong to intelligent substation data and adopt
The technical field of collection.
Background technology
In recent years, electric power provides powerful support and powerful guarantee for China's rapid economic development, and digital intelligent becomes
Applying for power station is more and more universal in China.Entire electric system arbitrary portion breaks down, can be to the development of national economy
Cause direct or indirect influence.Intelligent trouble wave recording device (dynamic recording device) as the black box in electric system,
The operation information of electric system can be recorded truly, and the reason of analysis failure occurs, therefore, intelligent trouble recording is accurately positioned
Device is the key component for ensureing intelligent substation safe operation.The reliability of detection fault wave recording device acquisition SV messages at any time
It is necessary to.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, it is proposed that acquire the reliable of SV data based on wave recording device
Property verification method, for prove in intelligent substation using wave recording device acquire SV data order of accuarcy.
The present invention is achieved by following scheme：
The reliability verification method of SV data is acquired based on wave recording device, steps are as follows：
Step 1, N group SV messages are set, and the specified time delays of SV link channels, voltage channel fundamental wave, current channel are set
Fundamental wave and harmonic content；It is every that the harmonic wave of different numbers all is applied, to the voltage of each group SV links to SV links at regular intervals
Channel applies the rated voltage Un of different multiples, applies Bu Tong again with current channel is measured to each group SV link protections current channel
Several rated current In；
Step 2, using waveform caused by wave recording device recording step 1, tester is connected to the wave recording device,
And obtain each harmonic content in each waveform, voltage and current amplitude precision and the phase difference with phase channel；
Step 3, error, voltage and current amplitude precision and the phase difference with phase channel of the content of harmonic wave are calculated, and
Judge whether that the SV data for meeting wave recording device acquisition have the error of reliability according to the standard of setting, if satisfied, can test
Card has certain reliability using the SV data that the wave recording device is acquired.
Further, the rated voltage Un described in step 1 is 57.74V, and the rated current In is 1A.
Further, the specified time delay being arranged described in step 1 is respectively 757us, 1399us, 800us and 1629us；Electricity
Pressure passageway fundamental wave is 57.74V；Current channel fundamental wave is 1A；Harmonic content is 20%.
Further, the error that wave recording device acquisition SV data can be utilized to have reliability requirement is met described in step 3
For：The amplitude precision maximum of the voltage is no more than 0.1%, and the amplitude precision maximum of the protective current is no more than 2%,
The amplitude precision maximum of the measurement electric current is no more than 2%, and the harmonic content error is described to communicate together no more than 5%
The phase difference in road is not more than 2%.
The advantageous effect of the present invention compared to the prior art is：
The present invention proposes a kind of reliability verification method acquiring SV data based on wave recording device, by logical to SV links
The channel for the harmonic wave and each group SV links that road applies different numbers applies the volume of the rated voltage and different multiples of different multiples
Tester is connected by constant current using various waveforms caused by wave recording device record SV message files with wave recording device, to
Obtain harmonic content, amplitude precision and the phase difference with phase channel in SV wave files.According to the error met the requirements, i.e.,
It can determine whether the reliability of wave recording device acquisition SV data.The present invention verifies in the method for wave recording device acquisition SV data reliabilities,
Process is simple, testing efficiency and accuracy are high, is a kind of approach of highly effective verification wave recording device reliability, can be extensive
In detection applied to each intelligent substation.
Description of the drawings
Fig. 1 is that the present invention is based on the flow charts of the reliability verification method of wave recording device acquisition SV data.
Specific implementation mode
The present invention will be further described in detail with reference to the accompanying drawings and examples.
The reliability verification method that SV data are acquired based on wave recording device, since synchronous sampling algorithm is in entire wave recording device
Program in play crucial effect, and most common synchronized algorithm is interpolation algorithm at present, therefore, to test in the present embodiment
For demonstrate,proving reliability of the wave recording device using interpolation algorithm acquisition SV data, it is described in detail, steps are as follows：
(1) setting of SV links:A message file for including 4 groups of SV links is designed in the present embodiment.In order to verify
The influence of SV data reliabilities is acquired under different sampling stages to interpolation algorithm, it is right under the premise of every 4000 point sampling of cycle
Typical specified time delay is respectively set in every group of link：757us, 1399us, 800us and 1629us (as shown in table 1).SV is set
Voltage channel fundamental wave 57.74V, current channel fundamental wave 1A in link, harmonic content is 20%.
As shown in table 1, per the harmonic wave for applying different numbers to every group of SV link respectively at regular intervals.In the present embodiment
Apply in 0.5 second at the 1st respectively 12 subharmonic, the 2nd apply in 0.5 second 13 subharmonic, the 3rd apply 15 times in 0.5 second
Harmonic wave, the 4th apply in 0.5 second 20 subharmonic, the 5th apply 25 subharmonic in 0.5 second；2.6th second start data to
Accuracy in computation.
Then, for the voltage channel of each group SV links, the rated voltage Un of certain multiple is applied respectively at regular intervals
=57.74V.Voltage value, specific voltage value are applied to the voltage channel of each group SV links respectively every 0.5s in the present embodiment
For：0.1Un、0.5Un、Un、2Un.Protective current channel for each group SV links and measurement current channel, at regular intervals
The rated current In=1A of certain multiple is applied respectively；In the present embodiment, every 0.5s respectively to the protection of each group SV links electricity
Circulation road applies current value, and specific current value is：0.1In, 0.5In, In, 2In, 20In apply electric current to measuring current channel
Value, specific current value are：0.1In、0.2In、0.5In、In、2In.
1 SV link designs of table
(2) it is given birth to after utilizing wave recording device to record each harmonic applied to SV links, voltage and current using interpolation algorithm
At waveform.Then, using point-to-point pattern, each optical port of tester is connected respectively to each acquisition of wave recording device
Optical port.Message is played back using tester, checks to obtain each harmonic content, voltage and current amplitude precision and the phase with phase channel
Potential difference.If the voltage and current amplitude precision error being calculated is no more than the range (range specifically set such as 5 institute of table of setting
Show), harmonic content error is not more than 5%, and the phase difference with phase channel is not more than 2%, it was demonstrated that wave recording device utilizes difference arithmetic
The SV data of acquisition have certain reliability.
The model WGL-801B intelligent substation wave recording devices for the wave recording device selected in the present embodiment, the test of selection
The RTS-100DG light digital relay protection testers of instrument model journey science and technology forever.
Experimental analysis and conclusion：
The number difference APPID for four groups of SV links being arranged is 4074,4075,4076 and 4077.Profit is with the aforedescribed process
The reliability that SV data are acquired using interpolation algorithm to wave recording device is verified.(such as 2 institute of table in carrying out stress_responsive genes experiment
Show), respectively by taking the busbar 1A phases in SV links protect 1 electric current A phases 1 of voltage 1 and protection as an example, the SV chains that number is 4075 are set
It is 1399 that busbar 1A phases in road, which protect the specified time delay of voltage 1, the 1 electric current A of protection in the SV links that setting number is 4074
The specified time delay of phase 1 is 757, and the busbar 1A phases in the SV links that setting number is 4077 protect the specified time delay of voltage 1 to be
1629, the specified time delay that the 1 electric current A phases 1 of protection in the SV links during number is 4076 are arranged is 800.Utilize above-mentioned authentication
The results are shown in Table 2 for each harmonic waveform that method obtains, each channel is in different sampling stages subharmonic different with application
In the case of, error is both less than 5% required, it was demonstrated that in wave recording device using interpolation algorithm acquisition SV data with reliable well
Property.
It is right in carrying out the experiment of each channel voltage current amplitude precision of SV links and phase difference (as shown in Table 3 and Table 4)
In the voltage channel of SV links, it is 2Un to apply busbar 1A phases respectively to protect voltage, and it is Un, busbar 1C that busbar 1B phases, which protect voltage,
Mutually protection voltage is 0.5Un, and it is 0.1Un that busbar 2A phases, which protect voltage,；For the protective current channel of SV links, applies protect respectively
It is 50In to protect 2 electric current A phases, and 2 electric current B phases of protection are 20In, and 1 electric current A phases of protection are In, and 1 electric current B phases of protection are 0.5In, protection
1 electric current C phases are 0.1In；For the measurement current channel of SV links, applies measure 1 electric current A phases as 2In and In respectively, measure 1
Electric current B phases are 0.5In and 0.2In, and 1 electric current C phases of measurement are 0.1In.By testing obtained Current Voltage precision result such as table 3
Shown, the results are shown in Table 4 for each phase difference of voltage, is obtained from table 3 and the analysis of table 4, the voltage in each channel, protective current and
The amplitude precision error of electric current is measured all no more than each parameter error value required by table 5, the protection voltage phase in each same phase channel
Potential difference is also respectively less than 2 °, has been also demonstrated that wave recording device has certain reliability using interpolation algorithm acquisition SV data.
In conclusion can effectively verify the SV of the acquisition of the wave recording device in intelligent substation using the method for the present invention
Whether data have reliability.
2 each harmonic error log of table
Data precision records under the different amplitudes of table 3
4 phase difference of table records
| It compares channel (citing) | 4 groups of links are the same as the phase difference between phase channel |
| Busbar 1A phases protect voltage | 2 ° of ＜ |
| Busbar 1B phases protect voltage | 2 ° of ＜ |
| Busbar 1C phases protect voltage | 2 ° of ＜ |
5 SV of table converts amplitude accuracy requirement
Reliability of the wave recording device using interpolation algorithm acquisition SV data is demonstrated in the present embodiment, in the present embodiment only with
Interpolation algorithm is illustrated, and is not limitation of the present invention.As other embodiment, can equally be tested using the method for the present invention
Demonstrate,prove reliability of the wave recording device using other synchronized algorithms acquisition SV data.
Under the thinking that the present invention provides, to above-mentioned implementation by the way of being readily apparent that those skilled in the art
Technological means in example is converted, is replaced, is changed, and is played the role of and the basic phase of relevant art means in the present invention
Goal of the invention that is same, realizing is also essentially identical, and the technical solution formed in this way is finely adjusted above-described embodiment to be formed, this
Kind technical solution is still fallen in protection scope of the present invention.
Claims (4)
1. acquiring the reliability verification method of SV data based on wave recording device, which is characterized in that steps are as follows：
Step 1, N group SV messages are set, and be arranged the specified time delays of SV link channels, voltage channel fundamental wave, current channel fundamental wave,
The harmonic content of current channel and the harmonic content of voltage channel；It is every that different numbers all are applied to SV links at regular intervals
Harmonic wave applies the rated voltage Un of different multiples, to each group SV link protection current channels to the voltage channel of each group SV links
With the rated current In for measuring current channel application different multiples；
Step 2, using waveform caused by wave recording device recording step 1, tester is connected to the wave recording device, and obtain
To each harmonic content in each waveform, voltage and current amplitude and phase with phase channel；
Step 3, error, voltage and current amplitude precision and the phase difference with phase channel of the content of harmonic wave are calculated, and according to
The standard of setting judges whether that meeting wave recording device acquisition SV data has the error of reliability, if satisfied, can verify that utilization
The SV data that the wave recording device is acquired have certain reliability.
2. the reliability verification method according to claim 1 for acquiring SV data based on wave recording device, which is characterized in that step
Rated voltage Un described in rapid 1 is 57.74V, and the rated current In is 1A.
3. the reliability verification method according to claim 1 for acquiring SV data based on wave recording device, which is characterized in that step
The specified time delay being arranged described in rapid 1 is respectively 757us, 1399us, 800us and 1629us；Voltage channel fundamental wave is 57.74V；
Current channel fundamental wave is 1A；Harmonic content is 20%.
4. the reliability verification method according to claim 1 for acquiring SV data based on wave recording device, which is characterized in that step
Meet wave recording device acquisition SV data described in rapid 3 and have the error of reliability and is：The amplitude precision of the voltage is most very much not
More than 0.1%, the amplitude precision maximum of the protective current is no more than 2%, and the amplitude precision of the measurement electric current is maximum
No more than 2%, the harmonic content error is not more than 5%, and the phase difference in the same phase channel is not more than 2%.
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| CN113283068B (en) * | 2021-05-18 | 2023-05-16 | 天津凯发电气股份有限公司 | Method for improving alternating current sampling precision and reliability of relay protection device |
| CN116626576B (en) * | 2023-07-25 | 2023-11-07 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0625751A1 (en) * | 1993-05-14 | 1994-11-23 | Siemens Aktiengesellschaft | Method of transmitting safe information on a bus |
| CN101777796A (en) * | 2010-01-15 | 2010-07-14 | 合肥工业大学 | DSP (Digital Signal Processor)-based distributed fault recorder for electric system |
| CN101834599A (en) * | 2009-03-13 | 2010-09-15 | 华东电网有限公司 | Synchronizing unit and method for synchronizing distributed wave recording devices |
| CN201740842U (en) * | 2009-09-29 | 2011-02-09 | 河北省电力公司 | Digital fault oscilloscope |
| CN102064612A (en) * | 2011-01-13 | 2011-05-18 | 许继电气股份有限公司 | System and method for maintaining condition of relay protection |
| CN103199862A (en) * | 2013-02-21 | 2013-07-10 | 四川电力科学研究院 | Data synchronization method used for analog-digital mixed recording |
| CN103630866A (en) * | 2013-09-09 | 2014-03-12 | 国家电网公司 | Transient characteristic detection system and transient characteristic detection method for electronic voltage transformers |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
-
2015
- 2015-11-27 CN CN201510843256.3A patent/CN105372611B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0625751A1 (en) * | 1993-05-14 | 1994-11-23 | Siemens Aktiengesellschaft | Method of transmitting safe information on a bus |
| CN101834599A (en) * | 2009-03-13 | 2010-09-15 | 华东电网有限公司 | Synchronizing unit and method for synchronizing distributed wave recording devices |
| CN201740842U (en) * | 2009-09-29 | 2011-02-09 | 河北省电力公司 | Digital fault oscilloscope |
| CN101777796A (en) * | 2010-01-15 | 2010-07-14 | 合肥工业大学 | DSP (Digital Signal Processor)-based distributed fault recorder for electric system |
| CN102064612A (en) * | 2011-01-13 | 2011-05-18 | 许继电气股份有限公司 | System and method for maintaining condition of relay protection |
| CN103199862A (en) * | 2013-02-21 | 2013-07-10 | 四川电力科学研究院 | Data synchronization method used for analog-digital mixed recording |
| CN103630866A (en) * | 2013-09-09 | 2014-03-12 | 国家电网公司 | Transient characteristic detection system and transient characteristic detection method for electronic voltage transformers |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
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