CN107861033A - The calibration method and system of oscillation wave partial discharge detection system position error - Google Patents
The calibration method and system of oscillation wave partial discharge detection system position error Download PDFInfo
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- CN107861033A CN107861033A CN201711004132.1A CN201711004132A CN107861033A CN 107861033 A CN107861033 A CN 107861033A CN 201711004132 A CN201711004132 A CN 201711004132A CN 107861033 A CN107861033 A CN 107861033A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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Abstract
Include the present invention relates to a kind of calibration method and system of oscillation wave partial discharge detection system position error, the step of methods described：Receive the test signal of error testing, the dipulse signal for meeting to impose a condition according to test signal generation, obtain the double-pulsed time time of dipulse signal, the standard setting value according to corresponding to double-pulsed time time and default tested cable length obtain dipulse signal, dipulse signal is inputted into tested oscillation wave partial discharge detection system, the measurement and positioning value that tested oscillation wave partial discharge detection system is directed to dipulse signal is obtained, the position error of tested oscillation wave partial discharge detection system is worth to according to standard setting value and measurement and positioning.Such scheme is advantageous to the calibrating that oscillation wave partial discharge detection system carries out position error in the case of uncharged by the trouble point of dipulse signal imitation cable.
Description
Technical field
The present invention relates to Partial Discharge Detecting Technology field, determines more particularly to a kind of oscillation wave partial discharge detection system
The calibration method and a kind of verification system of oscillation wave partial discharge detection system position error of position error.
Background technology
With the rapid development of the national economy, power grid accident is increasingly taken seriously caused by cable, the peace of cable operation
Entirely with being stably current popular subject under discussion.Twisted polyethylene cable because stability is good, laying is convenient, the advantages that being easily installed by
It gradually instead of oilpaper, insulating oil cable.But limited by material and technology, production is with being difficult to avoid cable in process of deployment
Body and annex penetrate into the generation that defect causes shelf depreciation, and shelf depreciation can cause the further deterioration of major insulation defect, very
To failures such as generation breakdown.The measurement cable local discharge that measurement of partial discharge damp oscillatory wave method introduces as recent year
A kind of effective means be taken seriously, the country carried out successively vibration wave measurement cable local discharge work, country in 2016
Bureau of Energy has promulgated the standard of wave of oscillation relevant device and method of testing, given the standard of oscillation wave partial discharge detection system
Parameter.Wave of oscillation detecting system position error is refer in standard must to be fulfilled for less than 1% cable length or not higher than 3.4 meters.
Under this standard, the detecting system of a system detectio oscillation wave partial discharge not disclosure satisfy that this requirement.
The content of the invention
Based on this, for not there is the problem of whether calibrating oscillation wave partial discharge detection system meets standard also at present, carry
For a kind of oscillation wave partial discharge detection system position error calibration method and system.
A kind of calibration method of oscillation wave partial discharge detection system position error, methods described include：
The test signal of error testing is received, controls default waveform generator generation satisfaction to set according to the test signal
The dipulse signal of fixed condition；
The double-pulsed time time of the dipulse signal is obtained, according to the double-pulsed time time and default quilt
Survey cable length and obtain standard setting value corresponding to the dipulse signal；
The dipulse signal is inputted into tested oscillation wave partial discharge detection system, it is local to obtain the tested wave of oscillation
Discharging detecting system is directed to the measurement and positioning value of the dipulse signal；
Determining for tested oscillation wave partial discharge detection system is worth to according to the standard setting value and the measurement and positioning
Position error.
A kind of oscillation wave partial discharge detection system position error verification system, the system include：
Standard signal generation module, for receiving the test signal of error testing, controlled according to the test signal default
Waveform generator generation meet the dipulse signal that imposes a condition；
Standard value generation module, for obtaining the double-pulsed time time of the dipulse signal, according to the dipulse
Interval time and default tested cable length obtain standard setting value corresponding to the dipulse signal；
Measurement module, oscillation wave partial discharge detection system is tested for the dipulse signal to be inputted, described in acquisition
Tested oscillation wave partial discharge detection system is directed to the measurement and positioning value of the dipulse signal；
Error testing module, it is local for being worth to the tested wave of oscillation according to the standard setting value and the measurement and positioning
The position error of discharging detecting system.
A kind of computer-readable recording medium, is stored thereon with computer program, and the program is realized when being executed by processor
The step of above method.
A kind of computer equipment, including memory, processor and storage can be run on a memory and on a processor
Computer program, the step of realizing the above method during computing device described program.
The calibration method and system of above-mentioned oscillation wave partial discharge detection system position error, by receiving error testing
Test signal, the dipulse signal for meeting to impose a condition according to test signal generation, the double-pulsed time of acquisition dipulse signal
Time, the standard setting value according to corresponding to double-pulsed time time and default tested cable length obtain dipulse signal；
Dipulse signal is inputted into tested oscillation wave partial discharge detection system, tested oscillation wave partial discharge detection system is obtained and is directed to
The measurement and positioning value of the dipulse signal；Tested oscillation wave partial discharge inspection is worth to according to standard setting value and measurement and positioning
The position error of examining system.The such scheme of the present invention, by the trouble point of dipulse signal imitation cable, is advantageous to the wave of oscillation
Partial discharge detecting system carries out the calibrating of position error in the case of uncharged.
Brief description of the drawings
Fig. 1 is the schematic flow of the calibration method of oscillation wave partial discharge detection system position error in an embodiment
Figure；
Fig. 2 is dipulse signal schematic representation in an embodiment；
Fig. 3 is the schematic structure of the verification system of oscillation wave partial discharge detection system position error in an embodiment
Figure.
Embodiment
It is below in conjunction with the accompanying drawings and preferably real further to illustrate the effect of the technological means of the invention taken and acquirement
Example is applied, to the technical scheme of the embodiment of the present invention, carries out clear and complete description.
Fig. 1 is the schematic flow of the calibration method of oscillation wave partial discharge detection system position error in an embodiment
Figure, as shown in figure 1, the step of methods described includes：
S101, the test signal of error testing is received, control default waveform generator to generate according to the test signal
Meet the dipulse signal to impose a condition.
In this step, it is necessary to the essential information of this test first be determined, wherein it is possible to will survey before being tested
The essential information of examination triggers this test by the form of test signal.Also, according to test signal, generation meets default bar
The dipulse signal of part.
S102, the double-pulsed time time of the dipulse signal is obtained, according to the double-pulsed time time and in advance
If tested cable length obtain standard setting value corresponding to the dipulse signal.
As shown in Fig. 2 dipulse signal is a pulse signal with dual waves, and in this step, double-pulsed time
Time is the time interval Δ t between two crests, is simulated using double-pulsed time time can is set in preset length
Trouble point in cable, and the particular location of the trouble point can be calculated.
S103, the dipulse signal is inputted into tested oscillation wave partial discharge detection system, obtains the tested vibration
Ripple partial discharge detecting system is directed to the measurement and positioning value of the dipulse signal.
In this step, tested oscillation wave partial discharge detection system can be that any money is based on damp oscillatory wave on the market
The oscillation wave partial discharge detection system of method, equally, by dipulse signal imitation trouble point, oscillation wave partial discharge can be used
Detecting system measurement obtains a measurement and positioning value.
S104, tested oscillation wave partial discharge detection system is worth to according to the standard setting value and the measurement and positioning
Position error.
In above-described embodiment, by receiving the test signal of error testing, satisfaction is generated according to test signal and imposed a condition
Dipulse signal, double-pulsed time time of dipulse signal is obtained, according to double-pulsed time time and default tested
Cable length obtains standard setting value corresponding to dipulse signal；Dipulse signal is inputted into tested oscillation wave partial discharge detection
System, obtain the measurement and positioning value that tested oscillation wave partial discharge detection system is directed to the dipulse signal；Determined according to standard
Place value and measurement and positioning are worth to the position error of tested oscillation wave partial discharge detection system.The such scheme of the present invention, lead to
The trouble point of dipulse signal imitation cable is crossed, is advantageous to oscillation wave partial discharge detection system and is carried out in the case of uncharged
The calibrating of position error.
The step of for S101, in one embodiment, it can be generated and met according to the test signal in the following manner
The dipulse signal to impose a condition：Test signal is parsed, obtains the parameter information of dipulse signal；Wherein, parameter information includes
Pulse width information, rising time information, double-pulsed time temporal information and the amplitude information of dipulse signal；Believed according to parameter
Breath generation dipulse signal, front and rear pulse, rising time, dipulse time interval and the width of the dipulse signal of generation
Value follows the mathematical modeling of Apparent discharge magnitude.
Because test signal contains the setting of dipulse signal parameter in this test, in parsing obtains test signal
After the parameter information of carrying, it is possible to corresponding pulse signal is obtained according to parameter information, it is appreciated that once surveying
In examination, multiple different dipulse signals may be used, therefore, multiple dipulse signals may be included in the parameter information
Configuration information.By dipulse signal caused by the present embodiment method, higher precision can be reached, improve error testing
Accuracy.
Optionally, after dipulse signal is generated, also to judge whether the dipulse signal meets to impose a condition, it is specific logical
Cross in the following manner and judge whether dipulse signal meets to impose a condition：The dipulse signal generated according to test signal input is shown
In ripple device, obtained parameter value and the approximately equalised dipulse signal of the parameter information is measured, wherein it is possible to by setting threshold
Value judges whether approximately equal, for example, when the double-pulsed time time for judging dipulse signal whether meeting to require, if according to
The double-pulsed time time of parameter information and the dipulse signal of Apparent discharge magnitude model generation is 8 μ s, and setting threshold value is
± 0.1 μ s, double-pulsed time time of dipulse signal that generation is detected by oscillograph is 7.95 μ s, then illustrates between dipulse
Every the time, this parameter meets approximately equal condition, in the equal approximately equal of all parameters, judges that dipulse signal is
Satisfaction imposes a condition.
The step of for S102, optionally, the interval time of the dipulse signal can be obtained in the following manner：Root
The double-pulsed time time of dipulse signal is obtained according to parameter information；Or, dipulse signal is inputted into oscillograph, pass through oscillograph
Obtain the double-pulsed time time of the dipulse signal.When being tested, it both can directly use and obtained according to parameter information
To the double-pulsed time time, the double-pulsed time time can be obtained with oscilloscope measurement dipulse signal again.Both approaches were both
It can select first, above two method can also be taken simultaneously, calculating is taken between dipulse of its average value as dipulse signal
Every the time.
The double-pulsed time time of dipulse signal is accurately obtained by the present embodiment, so as to more accurately simulation event
Hinder point, and the standard setting value of standard setting point is calculated.
In another embodiment, can be in the following manner according to the interval time and default tested cable length
Obtain standard setting value：The mathematics of standard setting value is obtained according to the double-pulsed time time and the tested cable length
Expression formula is：
Wherein, xsRepresent standard setting value；L represents tested cable length；v0Represent the ripple of dipulse signal pre-set
Speed；ΔtsRepresent the double-pulsed time time；K represents default positive integer.
In the present embodiment, the relational expression between double-pulsed time time and standard setting value is provided, it is, in Shuan Mai
In the case of the cable length determination for rushing signal velocity of wave and measurement, double-pulsed time time and the one-to-one corresponding of standard setting value
Relation.In above formula, preferable k takes 2.
The step of for S103, in an optional embodiment, it is local that the dipulse signal is inputted into the tested wave of oscillation
Discharging detecting system, obtain the measurement and positioning value that the tested oscillation wave partial discharge detection system is directed to the dipulse signal
Can be in the following ways：The dipulse signal is inputted into tested oscillation wave partial discharge detection system；Successively described in adjustment
The amplitude of each dipulse signal is different amplitude sizes, reads tested oscillation wave partial discharge detection system and is directed to double arteries and veins
Measurement and positioning value of the signal under each amplitude size is rushed, is averaged to obtain the measurement and positioning value of the dipulse signal.
Optionally, 5 different amplitude sizes are set, such as：1V, 2V, 3V, 4V, 5V, read under above-mentioned 5 amplitudes
Partial discharge detecting system is directed to the measurement and positioning value of dipulse signal, averages to obtain the measurement and positioning of dipulse signal
Value.
Further, for same tested oscillation wave partial discharge detection system, multigroup dipulse signal can be inputted,
Such as：5 groups of dipulse signals are taken, the setting to the dipulse time of this 5 dipulse signals can be with the setting side of arithmetic progression
Method, such as it is respectively 8 μ s, 10 μ s, 12 μ s, 14 μ s, 16 μ s side to set double-pulsed time time of this five dipulse signals
Formula, set the cable length that is pre-set corresponding to this 5 dipulse signals different, can be respectively set to 500m, 800m,
1100m, 1400m and 1700m.5 different dipulse signals are set, and each dipulse signal set 5 it is different
Amplitude size, such as：1V、2V、3V、4V、5V.The above-mentioned multigroup experimental data of setting, its purpose is to ensure in different distance
The accuracy of upper test, and hence it is also possible to set multigroup experiment in other way, do not repeat here.
The step of for S104, in one embodiment, tested oscillation wave partial discharge inspection can be obtained in the following manner
The position error of examining system：The mathematic(al) representation of the position error is：
Wherein, ElRepresent position error, xmRepresent measurement and positioning value.
Optionally, by 5 standard setting values corresponding to above-mentioned 5 groups of dipulse signals with being obtained with 5 dipulse signals
To 5 measurement and positioning values correspondingly input in the mathematic(al) representation of the position error, 5 position errors are calculated；Obtain
Position error of the maximum of 5 position errors as the tested oscillation wave partial discharge detection system.
In the present embodiment, a upper embodiment is correspondingly measured to 5 groups of obtained measurement and positioning values, by its corresponding dipulse
The standard setting value that signal of change obtains, it is corresponding to input in the mathematic(al) representation of location error calculating, 5 positioning can be obtained and missed
Difference.Position error using the maximum in this 5 position errors as tested oscillation wave partial discharge detection system, in addition, taking
How many groups of data can be according to testing requirement, it is not limited to 5 groups.
Below with a specific embodiment, technical scheme is further illustrated.
5 groups of test datas are set, and every group of test data is shown in Table 1：
Table 1
Wherein, Δ t1With l1Corresponding one group, Δ t2With l2Corresponding one group, Δ t3With l3Corresponding one group, Δ t4With l3Corresponding one
Group, Δ t5With l5Corresponding one group, setting velocity of wave is 170m/ μ s.
According to formulaCalculate standard setting value x corresponding to each interpulse periods1、xs2、xs3、xs4
And xs5.By the cable of this corresponding length of 5 dipulse signals input, the amplitude for adjusting every group of dipulse signal be respectively 1V,
2V, 3V, 4V, 5V, the average value for obtaining 5 measurement and positioning values that oscillation wave partial discharge detection system measurement obtains are respectively
xm1、xm2、xm3、xm4And xm5, standard setting is put, measurement and positioning value and its corresponding cable length input formulaIn, result of calculation is as shown in table 2：
Table 2
Interval time therein is obtained using oscillograph and measuring system measurement respectively, the positioning obtained by table 2
Error ElSelect position error of the maximum 0.357% therein as tested oscillation wave partial discharge detection system.
Based on the calibration method identical of the oscillation wave partial discharge detection system position error in above-described embodiment think of
Think, the present invention also provides the verification system of oscillation wave partial discharge detection system position error, and the system is above-mentioned available for performing
The calibration method of oscillation wave partial discharge detection system position error.For convenience of description, oscillation wave partial discharge detection system
In the structural representation of the verification system embodiment of position error, the part related to the embodiment of the present invention is illustrate only, this
Art personnel are appreciated that the restriction of schematic structure not structure paired systems, can include more more or less than illustrating
Part, either combine some parts or different parts arrangement.
Fig. 3 is the schematic structure of the verification system of oscillation wave partial discharge detection system position error in an embodiment
Figure, as shown in figure 3, the system includes：
Standard signal generation module 201, for receiving the test signal of error testing, controlled according to the test signal pre-
If waveform generator generation meet the dipulse signal that imposes a condition.
Standard value generation module 202, for obtaining the double-pulsed time time of the dipulse signal, according to double arteries and veins
Rush interval time and default tested cable length obtains standard setting value corresponding to the dipulse signal.
Measurement module 203, for the dipulse signal to be inputted into tested oscillation wave partial discharge detection system, obtain institute
State the measurement and positioning value that tested oscillation wave partial discharge detection system is directed to the dipulse signal.
Error testing module 204, for being worth to the tested wave of oscillation according to the standard setting value and the measurement and positioning
The position error of partial discharge detecting system.
In one embodiment, the standard signal generation module 201 is additionally operable to parse test signal, obtains dipulse signal
Parameter information；Wherein, when parameter information includes the pulse width information, rising time information, double-pulsed time of dipulse signal
Between information and amplitude information；According to parameter information generate dipulse signal, the front and rear pulse of the dipulse signal of generation,
Rising time, dipulse time interval and amplitude follow the mathematical modeling of Apparent discharge magnitude.
Optionally, the standard signal generation module 201 will also judge the dipulse signal after dipulse signal is generated
Whether satisfaction imposes a condition, and judges whether dipulse signal meets to impose a condition especially by the following manner：It will be believed according to test
In the dipulse signal input oscillograph of number generation, obtained parameter value and the approximately equalised dipulse of the parameter information are measured
Signal, wherein it is possible to by set threshold decision whether approximately equal, for example, judge dipulse signal double-pulsed time
When whether the time meets to require, if the dipulse of the dipulse signal generated according to parameter information and Apparent discharge magnitude model
Interval time is 8 μ s, and setting threshold value is ± 0.1 μ s, when detecting the double-pulsed time of the dipulse signal generated by oscillograph
Between be 7.95 μ s, then illustrate that this parameter of double-pulsed time time meets approximately equal condition, it is near in all parameters
During patibhaga-nimitta etc., it is to meet to impose a condition to judge dipulse signal.
In one embodiment, the standard value generation module 202 is additionally operable to obtain dipulse signal according to parameter information
The double-pulsed time time；Or, dipulse signal is inputted into oscillograph, the dipulse of the dipulse signal is obtained by oscillograph
Interval time.When being tested, it both can directly use and the double-pulsed time time is obtained according to parameter information, again can be with showing
Ripple device measurement dipulse signal obtains the double-pulsed time time.Both approaches can be selected first, or take simultaneously
Two methods are stated, calculating takes double-pulsed time time of its average value as dipulse signal.
In another embodiment, standard value generation module 202 was additionally operable to according to double-pulsed time time and described
The mathematic(al) representation that tested cable length obtains standard setting value is：
Wherein, xsRepresent standard setting value；L represents tested cable length；v0Represent the ripple of dipulse signal pre-set
Speed；ΔtsRepresent the double-pulsed time time；K represents default positive integer.
In the present embodiment, the relational expression between double-pulsed time time and standard setting value is provided, it is, in Shuan Mai
In the case of the cable length determination for rushing signal velocity of wave and measurement, double-pulsed time time and the one-to-one corresponding of standard setting value
Relation.In above formula, preferable k takes 2.
In an optional embodiment, measurement module 203 is additionally operable to the dipulse signal inputting tested wave of oscillation office
Portion's discharging detecting system；The amplitude for successively adjusting each dipulse signal is different amplitude sizes, reads the tested wave of oscillation
Partial discharge detecting system is directed to measurement and positioning value of the dipulse signal under each amplitude size, is averaged to obtain described pair
The measurement and positioning value of pulse signal.
Further, for same tested oscillation wave partial discharge detection system, can be inputted in measurement module 203 more
Group dipulse signal, such as：5 groups of dipulse signals are taken, the setting to the dipulse time of this 5 dipulse signals, can be waited
The method to set up of difference series, for example, set this five dipulse signals the double-pulsed time time be respectively 8 μ s, 10 μ s, 12 μ s,
14 μ s, 16 μ s mode, set the cable length pre-set corresponding to this 5 dipulse signals different, can set respectively
For 500m, 800m, 1100m, 1400m and 1700m.5 different dipulse signals are set, and each dipulse signal is set
5 different amplitude sizes are put, such as：1V、2V、3V、4V、5V.The above-mentioned multigroup experimental data of setting, its purpose is to ensure
The accuracy tested in different distance, and hence it is also possible to set multigroup experiment in other way, do not repeat here.
In one embodiment, in error testing module 204, the mathematic(al) representation for the position error of error testing is：
Wherein, ElRepresent position error, xmRepresent measurement and positioning value.
Optionally, error testing module 204 by 5 standard setting values corresponding to above-mentioned 5 groups of dipulse signals with described 5
5 measurement and positioning values that individual dipulse signal obtains correspondingly are inputted in the mathematic(al) representation of the position error, are calculated 5
Position error；Obtain positioning of the maximum of 5 position errors as the tested oscillation wave partial discharge detection system
Error.
In the present embodiment, a upper embodiment is correspondingly measured to 5 groups of obtained measurement and positioning values, by its corresponding dipulse
The standard setting value that signal of change obtains, it is corresponding to input in the mathematic(al) representation of location error calculating, 5 positioning can be obtained and missed
Difference.Position error using the maximum in this 5 position errors as tested oscillation wave partial discharge detection system, in addition, taking
How many groups of data can be according to testing requirement, it is not limited to 5 groups.
It will appreciated by the skilled person that realizing all or part of flow in above-described embodiment method, being can
To be completed by the related hardware of computer program instructions, described program can be stored in computer read/write memory medium
In, as independent production marketing or use.Described program upon execution, can perform the whole of the embodiment such as above-mentioned each method
Or part steps.Wherein, described storage medium can be magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
In one embodiment, the storage medium may also be disposed in computer equipment, and the computer equipment also includes
Processor.During program in storage medium described in the computing device whole of the executable embodiment such as above-mentioned each method or
Part steps.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of calibration method of oscillation wave partial discharge detection system position error, it is characterised in that methods described includes：
The test signal of error testing is received, controls default waveform generator generation to meet setting bar according to the test signal
The dipulse signal of part；
The double-pulsed time time of the dipulse signal is obtained, according to the double-pulsed time time and default tested electricity
Cable length obtains standard setting value corresponding to the dipulse signal；
The dipulse signal is inputted into tested oscillation wave partial discharge detection system, obtains the tested oscillation wave partial discharge
Detecting system is directed to the measurement and positioning value of the dipulse signal；
The positioning that tested oscillation wave partial discharge detection system is worth to according to the standard setting value and the measurement and positioning misses
Difference.
2. the calibration method of oscillation wave partial discharge detection system position error according to claim 1, it is characterised in that
The described the step of dipulse signal to impose a condition is met according to test signal generation, including：
The test signal is parsed, obtains the parameter information of dipulse signal；Wherein, the parameter information includes dipulse signal
Pulse width information, rising time information, double-pulsed time temporal information and amplitude information；
Dipulse signal is generated according to the parameter information, the front and rear pulse of the dipulse signal of generation, rising time,
Dipulse time interval and amplitude follow the mathematical modeling of Apparent discharge magnitude.
3. the calibration method of oscillation wave partial discharge detection system position error according to claim 2, it is characterised in that
The step of double-pulsed time time of the acquisition dipulse signal, in addition to：
The double-pulsed time time of the dipulse signal is obtained according to the parameter information；
Or, the dipulse signal is inputted into oscillograph, when obtaining the double-pulsed time of the dipulse signal by oscillograph
Between.
4. the calibration method of the oscillation wave partial discharge detection system position error according to claim any one of 1-3, its
It is characterised by, described the step of standard setting value is obtained according to the double-pulsed time time and default tested cable length
Including：
It is according to the mathematic(al) representation that the double-pulsed time time and the tested cable length obtain standard setting value：
<mrow>
<msub>
<mi>x</mi>
<mi>s</mi>
</msub>
<mo>=</mo>
<mi>l</mi>
<mo>-</mo>
<msub>
<mi>v</mi>
<mn>0</mn>
</msub>
<mfrac>
<mrow>
<msub>
<mi>&Delta;t</mi>
<mi>s</mi>
</msub>
</mrow>
<mi>k</mi>
</mfrac>
</mrow>
Wherein, xsRepresent standard setting value；L represents tested cable length；v0Represent the velocity of wave of dipulse signal pre-set；
ΔtsRepresent the double-pulsed time time；K represents default positive integer.
5. the calibration method of oscillation wave partial discharge detection system position error according to claim 4, it is characterised in that
It is described that the dipulse signal is inputted into tested oscillation wave partial discharge detection system, obtain the tested oscillation wave partial discharge
Detecting system is directed to the step of measurement and positioning value of the dipulse signal, including：
The dipulse signal is inputted into tested oscillation wave partial discharge detection system；
The amplitude for successively adjusting each dipulse signal is different amplitude sizes, reads tested oscillation wave partial discharge detection
System is directed to measurement and positioning value of the dipulse signal under each amplitude size, is averaged to obtain the survey of the dipulse signal
Measure locator value.
6. the calibration method of oscillation wave partial discharge detection system position error according to claim 5, it is characterised in that
The positioning that tested oscillation wave partial discharge detection system is worth to according to the standard setting value and the measurement and positioning misses
The step of difference, including：
The mathematic(al) representation of the position error is：
<mrow>
<msub>
<mi>E</mi>
<mi>l</mi>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mo>|</mo>
<msub>
<mi>x</mi>
<mi>m</mi>
</msub>
<mo>-</mo>
<msub>
<mi>x</mi>
<mi>s</mi>
</msub>
<mo>|</mo>
</mrow>
<mi>l</mi>
</mfrac>
<mo>&times;</mo>
<mn>100</mn>
<mi>%</mi>
</mrow>
Wherein, ElRepresent position error, xmRepresent measurement and positioning value.
7. the calibration method of oscillation wave partial discharge detection system position error according to claim 2, it is characterised in that
The dipulse signal for meeting to impose a condition is to input the dipulse signal generated according to test signal in oscillograph, measurement
Obtained parameter value and the approximately equalised dipulse signal of the parameter information.
8. a kind of verification system of oscillation wave partial discharge detection system position error, it is characterised in that the system includes：
Standard signal generation module, with the test signal for receiving error testing, default waveform is controlled according to the test signal
Generator generation meets the dipulse signal to impose a condition；
Standard value generation module, for obtaining the double-pulsed time time of the dipulse signal, according to the double-pulsed time
Time and default tested cable length obtain standard setting value corresponding to the dipulse signal；
Measurement module, for the dipulse signal to be inputted into tested oscillation wave partial discharge detection system, obtain described tested
Oscillation wave partial discharge detection system is directed to the measurement and positioning value of the dipulse signal；
Error testing module, for being worth to tested oscillation wave partial discharge according to the standard setting value and the measurement and positioning
The position error of detecting system.
9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is held by processor
The step of claim 1-7 any methods describeds are realized during row.
10. a kind of computer equipment, including memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, it is characterised in that the step of any methods describeds of claim 1-7 is realized during the computing device described program
Suddenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711004132.1A CN107861033B (en) | 2017-10-24 | 2017-10-24 | Calibration method and system for positioning error of oscillation wave partial discharge detection system |
Applications Claiming Priority (1)
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