CN116776194A - Insulator performance detection method, system, storage medium and electronic equipment - Google Patents
Insulator performance detection method, system, storage medium and electronic equipment Download PDFInfo
- Publication number
- CN116776194A CN116776194A CN202310563182.2A CN202310563182A CN116776194A CN 116776194 A CN116776194 A CN 116776194A CN 202310563182 A CN202310563182 A CN 202310563182A CN 116776194 A CN116776194 A CN 116776194A
- Authority
- CN
- China
- Prior art keywords
- equivalent resistance
- insulator
- preset
- determining
- voltage signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 322
- 238000001514 detection method Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 56
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 30
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012935 Averaging Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000011056 performance test Methods 0.000 claims 2
- 238000004364 calculation method Methods 0.000 abstract description 9
- 230000005284 excitation Effects 0.000 abstract description 5
- 229910052573 porcelain Inorganic materials 0.000 description 33
- 239000000725 suspension Substances 0.000 description 23
- 238000010586 diagram Methods 0.000 description 15
- 238000009413 insulation Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009421 internal insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G01R31/1245—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 of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
Abstract
The invention discloses an insulator performance detection method, an insulator performance detection system, a storage medium and electronic equipment, wherein the insulator performance detection method comprises the following steps: respectively acquiring a first current signal of a target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal; respectively carrying out signal decomposition on a first preset impulse voltage signal, a second preset impulse voltage signal, a first current signal and a second current signal to obtain corresponding fundamental wave signals; determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model; and determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance. According to the invention, the impulse voltage is used as excitation and the fundamental wave signal is used as calculation parameter, so that the requirement on the capacity of power supply equipment is reduced, the calculated equivalent resistance is more reliable, the method is applicable to insulators of different types, and the universality of the detection method is improved.
Description
Technical Field
The present invention relates to the field of high voltage insulation technology, and more particularly, to a method, a system, a storage medium, and an electronic device for detecting performance of an insulator.
Background
Insulators are an important component of a power transmission line and are the most used electrical equipment in a power transmission line. The disk-shaped suspension porcelain insulator is widely applied to the power transmission line due to the excellent electromechanical property and stable chemical property. However, under the effects of production process, transportation and installation, working voltage, mechanical vibration and the like, the insulating performance of the disc-shaped suspension porcelain insulator can fail to different degrees, and flashover, burst, even disconnection and disconnection can be caused when the insulating performance is serious, so that the safe and stable operation of a power system is threatened. In order to reduce the safety accidents caused by the failure of the insulating property of the disc-shaped suspension porcelain insulator in the power system and improve the production quality and the power supply reliability of the disc-shaped suspension porcelain insulator, the insulating property of the disc-shaped suspension porcelain insulator is necessary to be detected before the operation of the hanging net and during the overhaul and the maintenance.
In the prior art, the disc-shaped suspension porcelain insulator is subjected to insulation performance detection by adopting high-voltage pulse, and the method specifically comprises the following steps: applying impulse voltage to two ends of the disc-shaped suspension porcelain insulator to obtain an output current waveform, dividing the average value of voltage integral by the average value of current integral to obtain an insulation resistance value of the disc-shaped suspension porcelain insulator under the impulse voltage, and judging the insulation performance of the disc-shaped suspension porcelain insulator. However, the existing high-voltage pulse method is only suitable for large-tonnage insulators, the application range is small, the insulation resistance value of the disk-shaped suspension porcelain insulator under the impact voltage cannot be uniquely determined, and the disk-shaped suspension porcelain insulator is difficult to serve as an evaluation standard.
In another prior art, by carrying out a large number of impact breakdown tests, the breakdown voltages of the zero-value porcelain insulators under different electromechanical strengths are counted, so that the insulation performance of the insulators is judged. However, for low-value insulators with unobvious insulation performance degradation, such as porcelain containing impurities, small air gaps and the like, the impact voltage resistance detection effect is not ideal, and the application range is small. Therefore, the insulator detection method in the prior art has the problems of smaller application range and ambiguous evaluation standard.
Disclosure of Invention
The invention provides an insulator performance detection method, an insulator performance detection system, a storage medium and electronic equipment, and aims to solve the problems that an insulator detection method in the prior art is small in application range and ambiguous in evaluation standard.
In order to solve the above-described problems, according to an aspect of the present invention, there is provided an insulator performance detection method including:
respectively acquiring a first current signal of a target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal;
respectively carrying out signal decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal to obtain corresponding fundamental wave signals;
Determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model;
and determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
Preferably, the determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model includes:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;the first fundamental wave current signal and the second fundamental wave current signal are obtained by carrying out Fourier decomposition on the first current signal and the second current signal respectively; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
Preferably, wherein the method further comprises:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
Preferably, the determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value includes:
Determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
Preferably, the determining the performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance includes:
if the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
According to another aspect of the present invention, there is provided an insulator performance detection system, the system comprising:
the current signal acquisition unit is used for respectively acquiring a first current signal of the target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal;
the signal decomposition unit is used for respectively carrying out signal decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal to obtain corresponding fundamental wave signals;
The equivalent resistance determining unit is used for determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model;
and the performance detection unit is used for determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
Preferably, the equivalent resistance determining unit determines the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model, including:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;the first fundamental wave current signal and the second fundamental wave current signal are obtained by carrying out Fourier decomposition on the first current signal and the second current signal respectively; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
Preferably, wherein the system further comprises: the preset standard equivalent resistance determining unit is used for:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
Preferably, the determining unit for determining the preset standard equivalent resistance according to the maximum difference, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value includes:
Determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
Preferably, the performance detecting unit determines a performance detection result of the target insulator based on an equivalent resistance of the target insulator and a preset standard equivalent resistance, including:
if the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
Based on another aspect of the present invention, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any one of the insulator performance detection methods.
Based on another aspect of the present invention, the present invention provides an electronic device, including:
the computer readable storage medium as described above; and
One or more processors configured to execute the programs in the computer-readable storage medium.
The invention provides an insulator performance detection method, an insulator performance detection system, a storage medium and electronic equipment, wherein the insulator performance detection method comprises the following steps: respectively acquiring a first current signal of a target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal; respectively carrying out signal decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal to obtain corresponding fundamental wave signals; determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model; and determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance. According to the invention, the impulse voltage is used as excitation and the fundamental wave signal is used as calculation parameter, so that the requirement on the capacity of power supply equipment is reduced, the calculated equivalent resistance is more reliable, the method is applicable to disc-shaped suspension porcelain insulators of different types, and the universality of the insulator detection method is improved.
Drawings
Exemplary embodiments of the present invention may be more completely understood in consideration of the following drawings:
fig. 1 is a flowchart of an insulator performance detection method 100 according to an embodiment of the present invention;
FIG. 2 is a waveform diagram of a first predetermined surge voltage signal according to an embodiment of the present invention;
FIG. 3 is a waveform diagram of a first current signal according to an embodiment of the present invention;
FIG. 4 is a waveform diagram of a second predetermined surge voltage signal according to an embodiment of the present invention;
FIG. 5 is a waveform diagram of a second current signal according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an equivalent circuit model according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of current waveforms of an insulator at impact voltages with different wave fronts according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an insulator performance detection system 800 according to an embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flowchart of an insulator performance detection method 100 according to an embodiment of the present invention. As shown in FIG. 1, the insulator performance detection method provided by the embodiment of the invention reduces the requirement on the capacity of power equipment by taking the impulse voltage as excitation and taking the fundamental wave signal as calculation parameter, so that the calculated equivalent resistance is more reliable, the insulator performance detection method can be suitable for disc-shaped suspension porcelain insulators of various types, and the universality of the insulator detection method is improved. In the insulator performance detection method 100 provided in the embodiment of the present invention, starting from step 101, in step 101, a first current signal of a target insulator under a first preset surge voltage signal and a second current signal under a second preset surge voltage signal are respectively obtained.
In the present invention, the first preset surge voltage signal and the second preset surge voltage signal are two different surge voltage signals, only one parameter can be changed between the two surge voltage signals, and a plurality of parameters can be changed at the same time.
Preferably, the first preset impulse voltage signal and the second preset impulse voltage signal have different wave front time, the target insulator is detected by adopting a plurality of impulse voltages with different wave front time, the obtained current change is more obvious, the insulation performance in the insulator can be better reflected, and the detection result is more effective and reliable.
Specifically, in the present invention, the implementation of step 101 specifically includes:
step 1011: and detecting the target insulator based on the first preset impulse voltage signal, and collecting a first current signal obtained by detection.
The various parameters of the first preset surge voltage signal can be obtained by a person skilled in the art according to his own experience, and the present invention is not limited herein. FIG. 2 is a first predetermined surge voltage signal u according to the present embodiment 1 Waveform diagram of (t), fig. 2, abscissa indicates time in s (seconds), and ordinate indicates voltage in kV (kilovolts). As can be seen from fig. 2, the wavefront time t of the first preset surge voltage signal 1 ＝8*10 -3 s, amplitude U m =60 kV, half peak time T f ＝1.3*10 -1 s. When the first preset impulse voltage signal is applied to two sides of the target insulator, a first current signal i is obtained 1 The waveform of (t) is shown in fig. 3, which shows time on the abscissa in ms (milliseconds) and current on the ordinate in mA (milliamperes).
Step 1012: and adjusting the wave front time of the first preset impulse voltage signal to obtain a second preset impulse voltage signal.
The invention is not particularly limited in terms of how to realize the adjustment of the wave front time of the impulse voltage and the adjustment range of the wave front time, and the person skilled in the art can carry out adaptive adjustment according to own experience and actual needs.
Step 1013: and detecting the target insulator based on the second preset impulse voltage signal, and collecting a second current signal obtained by detection.
In this embodiment, after the wave front time of the first preset surge voltage signal is adjusted, a second preset surge voltage signal u as shown in fig. 4 is obtained 2 The waveform of (t), the abscissa of FIG. 4, is time in s (seconds), the ordinate is voltage in kV (kilovolts), and the wavefront time t of the second predetermined impulse voltage signal is seen in FIG. 4 2 ＝4*10 -2 s, amplitude U m =60 kV, half peak time T f ＝1.3*10 -1 s, when the current signal is applied to two sides of the target insulator, a second current signal i is obtained 2 The waveform of (t) is shown in fig. 5, which shows time on the abscissa in ms (milliseconds) and current on the ordinate in mA (milliamperes).
In step 102, signal decomposition is performed on the first preset surge voltage signal, the second preset surge voltage signal, the first current signal and the second current signal, so as to obtain corresponding fundamental wave signals.
In the present invention, after a surge voltage signal and a current signal corresponding to the surge voltage are obtained, the surge voltage signal and the current signal are subjected to signal decomposition to obtain fundamental components of the surge voltage signal and the current signal. The method for decomposing the signals is not particularly limited, and the fundamental component can be obtained by decomposing the signals by a filtering method, a Fourier transform method and the like. Preferably, the fundamental components of the surge voltage signal and the current signal are obtained using fourier transforms.
Specifically, the method comprises the following steps: and performing Fourier decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal respectively to obtain a first fundamental wave voltage signal, a second fundamental wave voltage signal, a first fundamental wave current signal and a second fundamental wave current signal of the target insulator.
The method comprises the steps of carrying out signal decomposition on a first preset impulse voltage signal, a second preset impulse voltage signal, a first current signal and a second current signal based on a Fourier transform algorithm to obtain respective corresponding fundamental wave components, wherein the fundamental wave components are respectively as follows: a first fundamental voltage signal, a second fundamental voltage signal, a first fundamental current signal, and a second fundamental current signal.
In step 103, the equivalent resistance of the target insulator is determined based on the fundamental wave signal and a preset equivalent circuit model.
Preferably, the determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model includes:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
Solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;respectively to the first electricityA first fundamental wave current signal and a second fundamental wave current signal obtained by carrying out Fourier decomposition on the current signal and the second current signal; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
Preferably, wherein the method further comprises:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
Determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
Preferably, the determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value includes:
determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
In the present invention, the preset equivalent circuit model can refer to fig. 6, in which the target insulator is regarded as parallel connection of the resistor R and the capacitor C, and the resistance value of the resistor R is the equivalent resistance value of the target insulator. And according to the impulse voltage signal, the fundamental component of the current signal and the equivalent circuit model obtained in the previous step, calculating to obtain the equivalent resistance of the target insulator. By taking the impulse voltage as excitation and the fundamental wave signal as calculation parameters, the requirement on the capacity of power supply equipment is reduced, the calculated equivalent resistance is more effective and reliable, and the method can be applied to insulators of different types, so that the universality of the method is improved.
In the invention, the preset standard equivalent resistance can be obtained by an insulator detection method in the prior art, for example, a high-voltage pulse method is adopted to detect a plurality of standard insulators which are identical to the target insulator in type and have normal working parameters, so as to obtain the equivalent resistance of each standard insulator, then the average value of the equivalent resistance of each standard insulator is obtained, and the obtained average value of the equivalent resistance is used as the preset standard equivalent resistance; the insulator can also be set at a specific position according to actual requirements, for example, the equivalent resistance of the insulator is at least a specific value, and the specific value is used as a preset standard equivalent resistance.
Preferably, the same detection method as that of the target insulator is adopted to detect a plurality of standard insulators, and the standard equivalent resistance is obtained by calculation according to the average value of the equivalent resistance of the standard insulators, the number of standard insulators with the equivalent resistance lower than the average value and the maximum difference value between the equivalent resistance of the standard insulators and the average value, so that the variable is reduced, and the detection result is more accurate and reliable. Secondly, the method can be suitable for insulators of different types, so that the insulators of different types can be detected, and the universality of the method is improved.
According to the invention, the equivalent resistance of the target insulator is calculated according to each fundamental component of the target insulator and a preset equivalent circuit model, and after the equivalent resistance of the target insulator is calculated, the detection result of the target insulator can be determined according to the equivalent resistance of the target insulator and the standard equivalent resistance of the model of the target insulator.
Specifically, the method comprises the following steps:
step S1031: and constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal and a preset equivalent circuit model of the target insulator.
The predetermined equivalent circuit model may refer to fig. 6 and the corresponding embodiment, and after obtaining the fundamental component of the target insulator, the equivalent circuit model may be combined to obtain:
in the above formula, the number of the groups of groups,respectively represent a first preset impulse voltage signal u 1 (t) a second preset surge voltage signal u 2 (t) a first fundamental voltage signal and a second fundamental voltage signal obtained by fourier decomposition; />Respectively represent the first current signals i 1 (t), a second current signal i 2 (t) performing fourier decomposition to obtain a first fundamental current signal and a second fundamental current signal; omega 1 And omega 2 Respectively represent the first fundamental voltage signal +.>Second fundamental voltage signal->Is a frequency of (2); j is the equivalent circuit moduleComplex impedance of the type.
According to the above formula and each fundamental component of the target insulator, the equivalent resistance R of the target insulator can be calculated.
Step S1032: and solving the equivalent resistance equation set to obtain the equivalent resistance of the target insulator.
In the last step, the fundamental component and the equivalent resistance equation set of the target insulator are obtained, and the fundamental component of the target insulator is substituted into the equivalent resistance equation set, so that the equivalent resistance of the target insulator can be obtained.
The calculation method of the preset standard equivalent resistance is as follows:
step S1: equivalent resistances of the plurality of standard insulators are determined. The model of the standard insulator is consistent with that of the target insulator, and the standard insulator is an insulator with normal operation parameters. The calculation method of the equivalent resistance of the standard insulator is similar to that of the target insulator.
Wherein, step S1 includes:
step S12: and acquiring a third current signal of the plurality of standard insulators under the first preset impulse voltage signal and a fourth current signal under the second preset impulse voltage signal.
The first preset impulse voltage signal and the second preset impulse voltage signal applied to the standard insulator are consistent with the first preset impulse voltage signal and the second preset impulse voltage signal applied to the target insulator, so that variables are reduced, and accuracy of a calculation result is improved.
Step S14: and decomposing the first preset impulse voltage signal, the second preset impulse voltage signal, the third current signal and the fourth current signal to obtain fundamental wave signals of all the standard insulators.
After the impulse voltage signal and the current signal of each standard insulator are obtained, fourier decomposition is performed on the impulse voltage signal and the current signal, so that the fundamental component of each standard insulator is obtained.
Step S16: and determining the equivalent resistance of each standard insulator based on the fundamental wave signals of each standard insulator and a preset equivalent circuit model.
The fundamental wave components of the standard insulators are substituted into equivalent resistance equation sets corresponding to the standard insulators, so that the equivalent resistance of the standard insulators is solved.
Step S2: and carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value.
In the previous step, the equivalent resistances of the X standard insulators are respectively obtained as follows: r is R 1 、R 2 …R x Averaging the equivalent resistors of the X standard insulators to obtain an equivalent resistor average value R a The method comprises the following steps:
step S3: and determining the maximum difference value between the equivalent resistance of each standard insulator and the average value of the equivalent resistances.
Wherein the maximum difference between the equivalent resistance of each standard insulator and the average value of the equivalent resistances is the equivalent resistance R of each standard insulator 1 、R 2 …R x Mean value R a Assuming that the maximum difference is M, then:
M＝max{|R 1 -R a |、|R 2 -R a |…|R x -R a |}
step S4: and determining the number of standard insulators with equivalent resistance lower than the average value of the equivalent resistance.
Wherein, in X standard insulators, the equivalent resistance is screened to be lower than the average value R of the equivalent resistance a And the number of the standard insulators is recorded as k.
Step S5: and determining a preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with the equivalent resistance lower than the equivalent resistance average value.
And determining a preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with the equivalent resistance lower than the equivalent resistance average value. After the standard equivalent resistance is calculated, the equivalent resistance of the target insulator can be compared with the standard equivalent resistance, so that a detection result of the target insulator is obtained. It should be noted that the standard equivalent resistance of a model needs to be calculated only once.
Wherein, step S5 includes:
step S51: and determining the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance as a deviation value.
Wherein in the above step, the equivalent resistance average value of the standard insulator is obtained to be R a The maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistance is M, and the equivalent resistance is lower than the average value R of the equivalent resistance a If the number of the standard insulators is k, the product of the maximum difference value M and the number k of the standard insulators with equivalent resistance lower than the average value of the equivalent resistance, namely the deviation value is: k x M.
Step S52: and determining the difference value between the equivalent resistance mean value and the deviation value as a preset standard equivalent resistance.
In step 104, a performance detection result of the target insulator is determined based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
Preferably, the determining the performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance includes:
if the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
In the invention, after the equivalent resistance of the target insulator is obtained through calculation, the equivalent resistance of the target insulator is compared with the standard equivalent resistance of the model of the target insulator, if the equivalent resistance of the target insulator is greater than or equal to the standard equivalent resistance of the model, the target insulator is considered to be a qualified product, otherwise, the target insulator is considered to be a disqualified product.
Assume that the standard equivalent resistance is R S Then: r is R S ＝R a -kM. The equivalent resistance R of the target insulator is less than R S When the target insulator is a deteriorated insulator, the target insulator is considered to be a deteriorated insulator; r is greater than or equal to R S And when the internal insulation performance of the target insulator meets the requirement, the target insulator is considered to be a qualified product.
The disk-shaped suspension porcelain insulator can be equivalent to a circuit structure with a resistor and a capacitor connected in parallel, so that the impedance of the equivalent circuit of the disk-shaped suspension porcelain insulator changes along with the wave front time and the fundamental frequency of the impulse voltage. With wavefront times of 8 x 10 respectively -3 s、4*10 -2 s、8*10 -2 As an example of a shocking voltage wave of s, a corresponding current waveform is obtained as shown in fig. 7, and the abscissa of fig. 7 shows time in s (seconds), and the ordinate shows current in mA (milliamperes). As can be seen from fig. 7, along with the change of the wave front time of the surge voltage, the waveform of the current also changes obviously, whether the amplitude or the steepness of the current is the same, which indicates that the change of the equivalent impedance of the disc-shaped suspended porcelain insulator is truly caused by the change of the wave front time of the surge voltage, and according to different responses of the current, relevant equivalent parameters can be further determined, so as to obtain an equivalent circuit model of the disc-shaped suspended porcelain insulator, and finally, the basis and the guidance are provided for judging the insulating performance of the disc-shaped suspended porcelain insulator.
The testing method provided by the invention is used for testing the disk-shaped suspended porcelain insulators with different defects, determining the corresponding equivalent circuit model of the disk-shaped suspended porcelain insulators, establishing the association between the internal defects of the disk-shaped suspended porcelain insulators and the current output response, and providing a method for identifying and classifying the defects of the disk-shaped suspended porcelain insulators, thereby providing advice and guidance for the actual manufacturing production and line operation and maintenance of the disk-shaped suspended porcelain insulators.
The method for testing the equivalent parameters of the disk-shaped suspension porcelain insulator has the following beneficial effects:
(1) The invention adopts the impact voltage wave as excitation, reduces the requirement on the capacity of the power supply equipment, and can meet the requirement of field test.
(2) The surge voltage wave adopted by the invention can better reflect the internal insulation performance of the disk-shaped suspension porcelain insulator, and the detection result is more effective and reliable.
(3) The invention adopts a plurality of impact voltages with different wave front time to determine the insulating performance parameters of the disk-shaped suspension porcelain insulator, and provides a method and a basis for judging the insulating performance of the disk-shaped suspension porcelain insulator.
(4) The equivalent parameter model obtained by the method can be connected with the internal defects of the disc-shaped suspension porcelain insulator, and finally the defect identification and classification method of the disc-shaped suspension porcelain insulator is provided.
(5) The method can be used for screening cracks of the disc-shaped suspension porcelain insulator blank (after drying) and provides a defect identification and classification method of the disc-shaped suspension porcelain insulator blank.
Fig. 8 is a schematic structural diagram of an insulator performance detection system 800 according to an embodiment of the present invention. As shown in fig. 8, an insulator performance detection system 800 provided in an embodiment of the present invention includes: a current signal acquisition unit 801, a signal decomposition unit 802, an equivalent resistance determination unit 803, and a performance detection unit 804.
Preferably, the current signal obtaining unit 801 is configured to obtain a first current signal of the target insulator under a first preset surge voltage signal and a second current signal of the target insulator under a second preset surge voltage signal, respectively.
Preferably, the signal decomposition unit 802 is configured to perform signal decomposition on the first preset surge voltage signal, the second preset surge voltage signal, the first current signal, and the second current signal, respectively, to obtain corresponding fundamental wave signals.
Preferably, the equivalent resistance determining unit 803 is configured to determine an equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model.
Preferably, wherein the equivalent resistance determining unit 803 determines the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model, comprising:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;the first fundamental wave current signal and the second fundamental wave current signal are obtained by carrying out Fourier decomposition on the first current signal and the second current signal respectively; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
Preferably, wherein the system further comprises: the preset standard equivalent resistance determining unit is used for:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
Preferably, the determining unit for determining the preset standard equivalent resistance according to the maximum difference, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value includes:
Determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
Preferably, the performance detecting unit 804 is configured to determine a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
Preferably, the performance detecting unit 804 determines a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance, including:
if the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
The insulator performance detection system 800 according to the embodiment of the present invention corresponds to the insulator performance detection method 100 according to another embodiment of the present invention, and will not be described here again.
Based on another aspect of the present invention, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any one of the insulator performance detection methods.
Based on another aspect of the present invention, the present invention provides an electronic device, including:
the computer readable storage medium as described above; and
one or more processors configured to execute the programs in the computer-readable storage medium.
The invention has been described with reference to a few embodiments. However, as is well known to those skilled in the art, other embodiments than the above disclosed invention are equally possible within the scope of the invention, as defined by the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise therein. All references to "a/an/the [ means, component, etc. ]" are to be interpreted openly as referring to at least one instance of said means, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (12)
1. A method for detecting performance of an insulator, the method comprising:
respectively acquiring a first current signal of a target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal;
respectively carrying out signal decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal to obtain corresponding fundamental wave signals;
determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model;
and determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
2. The method of claim 1, wherein the determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model comprises:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
Solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;the first fundamental wave current signal and the second fundamental wave current signal are obtained by carrying out Fourier decomposition on the first current signal and the second current signal respectively; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
3. The method according to claim 1, wherein the method further comprises:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
Determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
4. A method according to claim 3, wherein said determining the preset standard equivalent resistance based on the maximum difference, the equivalent resistance average, and the number of standard insulators having an equivalent resistance less than the equivalent resistance average comprises:
determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
5. The method of claim 1, wherein the determining the performance test result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance comprises:
if the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
6. An insulator performance test system, the system comprising:
the current signal acquisition unit is used for respectively acquiring a first current signal of the target insulator under a first preset impulse voltage signal and a second current signal of the target insulator under a second preset impulse voltage signal;
the signal decomposition unit is used for respectively carrying out signal decomposition on the first preset impulse voltage signal, the second preset impulse voltage signal, the first current signal and the second current signal to obtain corresponding fundamental wave signals;
the equivalent resistance determining unit is used for determining the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model;
and the performance detection unit is used for determining a performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance.
7. The system according to claim 6, wherein the equivalent resistance determining unit determines the equivalent resistance of the target insulator based on the fundamental wave signal and a preset equivalent circuit model, comprising:
constructing an equivalent resistance equation set based on the first fundamental voltage signal, the frequency of the first fundamental voltage signal, the second fundamental voltage signal, the frequency of the second fundamental voltage signal, the first fundamental current signal, the second fundamental current signal, and the preset equivalent circuit model, including:
Solving the equivalent resistance equation set to determine the equivalent resistance of the target insulator;
wherein R is the equivalent resistance of the target insulator;the first fundamental wave voltage signal and the second fundamental wave voltage signal are obtained by carrying out Fourier decomposition on the first preset impulse voltage signal and the second impulse voltage signal respectively;the first fundamental wave current signal and the second fundamental wave current signal are obtained by carrying out Fourier decomposition on the first current signal and the second current signal respectively; omega 1 And omega 2 First fundamental voltage signal +.>And a second fundamental voltage signal->Is a frequency of (2); j is the complex impedance of the equivalent circuit model; c is a capacitor; the preset equivalent circuit model is an RC circuit model.
8. The system of claim 6, wherein the system further comprises: the preset standard equivalent resistance determining unit is used for:
the preset standard equivalent resistance is obtained by the following method, which comprises the following steps:
determining equivalent resistances of a plurality of standard insulators with the same model as the target insulator; the method for determining the equivalent resistance of the plurality of standard insulators is the same as the method for determining the equivalent resistance of the target insulator;
Carrying out averaging treatment on the equivalent resistance of each standard insulator to obtain an equivalent resistance average value;
determining the maximum difference between the equivalent resistance of the standard insulator and the average value of the equivalent resistances;
determining the number of standard insulators with equivalent resistance smaller than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the maximum difference value, the equivalent resistance average value and the number of standard insulators with equivalent resistance smaller than the equivalent resistance average value.
9. The system according to claim 8, wherein the preset standard equivalent resistance determining unit determines the preset standard equivalent resistance according to the maximum difference, an equivalent resistance average, and the number of standard insulators having an equivalent resistance smaller than the equivalent resistance average, including:
determining a deviation value according to the product of the maximum difference value and the number of standard insulators with the equivalent resistance lower than the average value of the equivalent resistance;
and determining the preset standard equivalent resistance according to the difference value between the equivalent resistance mean value and the deviation value.
10. The system according to claim 6, wherein the performance detection unit determines the performance detection result of the target insulator based on the equivalent resistance of the target insulator and a preset standard equivalent resistance, comprising:
If the equivalent resistance of the target insulator is smaller than the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a deteriorated insulator; otherwise, if the equivalent resistance of the target insulator is greater than or equal to the preset standard equivalent resistance, determining that the performance detection result of the target insulator is a qualified insulator.
11. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any of claims 1-5.
12. An electronic device, comprising:
the computer readable storage medium recited in claim 11; and
one or more processors configured to execute the programs in the computer-readable storage medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310563182.2A CN116776194A (en) | 2023-05-18 | 2023-05-18 | Insulator performance detection method, system, storage medium and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310563182.2A CN116776194A (en) | 2023-05-18 | 2023-05-18 | Insulator performance detection method, system, storage medium and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116776194A true CN116776194A (en) | 2023-09-19 |
Family
ID=87986914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310563182.2A Pending CN116776194A (en) | 2023-05-18 | 2023-05-18 | Insulator performance detection method, system, storage medium and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116776194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554766A (en) * | 2024-01-09 | 2024-02-13 | 成都瑞讯物联科技有限公司 | Insulation on-line monitoring method and monitoring device |
-
2023
- 2023-05-18 CN CN202310563182.2A patent/CN116776194A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554766A (en) * | 2024-01-09 | 2024-02-13 | 成都瑞讯物联科技有限公司 | Insulation on-line monitoring method and monitoring device |
| CN117554766B (en) * | 2024-01-09 | 2024-03-26 | 成都瑞讯物联科技有限公司 | Insulation on-line monitoring method and monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Contin et al. | Classification and separation of partial discharge signals by means of their auto-correlation function evaluation | |
| CN116776194A (en) | Insulator performance detection method, system, storage medium and electronic equipment | |
| US9372221B1 (en) | Partial discharge signal normalization | |
| CN111239263B (en) | Method and system for detecting foreign matter defects in GIS equipment | |
| CN108267660B (en) | Transformer fault diagnosis method and device | |
| RU2700368C1 (en) | Method for determining technical state of a digital transformer based on parameters of partial discharges in insulation | |
| CN109001602B (en) | Partial discharge severity evaluation method based on extreme learning machine algorithm | |
| Bucci et al. | Apparatus for online continuous diagnosis of induction motors based on the SFRA technique | |
| US9958492B2 (en) | Partial discharge signal detection using resistive attenuation | |
| CN110543730B (en) | Transformer winding deformation fault determination method | |
| Naderi et al. | Modeling and detection of transformer internal incipient fault during impulse test | |
| CN111707910B (en) | Porcelain insulator inner insulation detection method and porcelain insulator detection circuit | |
| CN110456123B (en) | Broadband transient voltage division measuring device and method | |
| EP3123184A1 (en) | Arc fault location | |
| Kraetge et al. | Advanced noise suppression during PD measurements by real-time pulse-waveform analysis of PD pulses and pulse-shaped disturbances | |
| CN104833841B (en) | A kind of transformer station invades Zenith tracking method | |
| JP6008833B2 (en) | Partial discharge detection method and partial discharge detection apparatus | |
| Ghosh et al. | Simulation and Real-Time Generation of Non-Standard Lightning Impulse Voltage Waveforms | |
| US4063168A (en) | Method and apparatus for locating the source of corona discharge | |
| Quizhpi-Cuesta et al. | Classification of partial discharge in pin type insulators using fingerprints and neural networks | |
| US5694044A (en) | Simultaneous surge test of two coils of an assembly of series connected coils | |
| CN114526813A (en) | Transformer vibration monitoring method and device | |
| Sun et al. | Using impulse with appropriate repetition frequency in IFRA test to diagnosis winding deformation in transformer | |
| Guastavino et al. | A study about partial discharge measurements performed applying to insulating systems square voltages with different rise times | |
| Saha et al. | Modeling metal oxide surge arrester for the modern polarization based diagnostics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |