CN114322917B - Transformer winding detection method and device, electronic equipment and storage medium - Google Patents
Transformer winding detection method and device, electronic equipment and storage medium Download PDFInfo
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- CN114322917B CN114322917B CN202111627036.9A CN202111627036A CN114322917B CN 114322917 B CN114322917 B CN 114322917B CN 202111627036 A CN202111627036 A CN 202111627036A CN 114322917 B CN114322917 B CN 114322917B
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Abstract
The embodiment of the invention discloses a transformer winding detection method, a device, electronic equipment and a storage medium. The transformer winding detection method specifically comprises the following steps: acquiring a target element curve of a winding to be detected of a transformer to be detected; performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested; and determining a winding deformation detection result of the transformer to be detected according to the curve matching result. The technical scheme of the embodiment of the invention can accurately detect the deformation of the transformer winding, thereby improving the accuracy and reliability of the deformation detection result of the transformer winding.
Description
Technical Field
The embodiment of the invention relates to the technical field of transformer detection, in particular to a transformer winding detection method, a device, electronic equipment and a storage medium.
Background
The power transformer is one of important electrical equipment of the power system, and the normal and stable operation of the transformer is significant for the safe production and reliability of the power system. As the capacity of the power grid increases, the loss and impact of transformer faults becomes more serious. The winding deformation is one of the most important fault types of the transformer, and the transformer may be deformed due to various nonresistible factors such as manual misoperation, external force and other natural disasters during transportation, installation and operation. Therefore, it is important to accurately detect the deformation degree of the transformer winding, grasp the health state of the internal winding of the transformer in time, discover the hidden trouble of the transformer as soon as possible and overhaul the transformer in time.
The existing transformer winding detection method mainly comprises a winding capacitance method, a short-circuit impedance method and a pulse frequency response method, but the methods all adopt an electric quantity detection mode, whether the winding is deformed or not and the deformation degree are deduced by detecting parameters such as capacitance, inductance and impedance of the transformer winding, whether the transformer winding is deformed or not cannot be accurately judged, and the accuracy and the reliability of a transformer winding detection result are poor.
Disclosure of Invention
The embodiment of the invention provides a transformer winding detection method, a device, electronic equipment and a storage medium, which can accurately detect transformer winding deformation, thereby improving the accuracy and reliability of a transformer winding deformation detection result.
In a first aspect, an embodiment of the present invention provides a method for detecting a transformer winding, including:
acquiring a target element curve of a winding to be detected of a transformer to be detected;
performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested;
and determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
In a second aspect, an embodiment of the present invention further provides a transformer winding detection apparatus, including:
the target element curve acquisition module is used for acquiring a target element curve of a winding to be detected of the transformer to be detected;
the target element curve matching module is used for performing curve matching on the winding target element curve to be detected and the reference winding target element curve so as to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested;
And the deformation detection result determining module is used for determining the winding deformation detection result of the transformer to be tested according to the curve matching result.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
one or more processors;
a storage means for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the transformer winding detection method provided by any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, which when executed by a processor implements the method for detecting a transformer winding provided in any embodiment of the present invention.
According to the embodiment of the invention, the winding deformation detection result of the transformer to be detected is determined according to the curve matching result by acquiring the target element curve of the winding to be detected of the transformer to be detected and performing curve matching on the target element curve of the winding to be detected and the reference winding target element curve of the transformer to be detected, so that the problems of poor accuracy and low reliability of the winding detection result of the transformer caused by the fact that whether the transformer winding is deformed or not can not be accurately judged in the existing transformer winding detection method are solved, the winding deformation of the transformer can be accurately detected, and the accuracy and reliability of the winding deformation detection result of the transformer are improved.
Drawings
Fig. 1 is a flowchart of a method for detecting a transformer winding according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting a transformer winding according to a second embodiment of the present invention;
fig. 3 is a flowchart of a specific example of a method for detecting a transformer winding according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of a transformer winding detection device according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof.
It should be further noted that, for convenience of description, only some, but not all of the matters related to the present invention are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The terms first and second and the like in the description and in the claims and drawings of embodiments of the invention are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to the listed steps or elements but may include steps or elements not expressly listed.
Example 1
Fig. 1 is a flowchart of a transformer winding detection method provided in an embodiment of the present invention, where the embodiment is applicable to a case of accurately detecting deformation of a transformer winding, and the method may be performed by a transformer winding detection device, where the device may be implemented by software and/or hardware, and may generally be directly integrated in an electronic device that performs the method, where the electronic device may be a terminal device or a server device, and the embodiment of the present invention does not limit a type of electronic device that performs the transformer winding detection method. Specifically, as shown in fig. 1, the method for detecting the transformer winding specifically includes the following steps:
S110, acquiring a target element curve of a winding to be detected of the transformer to be detected.
The transformer to be tested can be a transformer needing winding deformation detection. The target element curve of the winding to be detected may be a curve of a target element of the winding to be detected, for example, may be an amplitude-frequency response curve of the winding to be detected, or may be a sweep frequency impedance curve of the winding to be detected, which is not limited in the embodiment of the present invention.
In the embodiment of the invention, the target element curve of the winding to be detected of the transformer to be detected is obtained, so that the target element curve of the winding to be detected and the target element curve of the reference winding are subjected to curve matching. It can be understood that the transformer to be tested can be provided with a plurality of windings to be tested, and when any one winding to be tested is subjected to deformation test, the target element curve of the winding to be tested can be obtained, so that the target element curve of the winding to be tested is matched with the target element curve of the reference winding.
S120, performing curve matching on the to-be-detected winding target element curve and a reference winding target element curve to obtain a curve matching result of the to-be-detected winding target element curve; the reference winding target element curve is a winding target element curve of a transformer which is not to be measured.
The reference winding target element curve may be a curve of a target element serving as a reference when deformation detection is performed on a winding of the transformer. The reference winding target element curve may be a reference winding target element curve in a normal winding state or a reference winding target element curve in a deformed winding state. The curve matching result may be a result obtained by performing curve matching on the target element curve of the winding to be detected and the target element curve of the reference winding, for example, may be a matching rate between the target element curve of the winding to be detected and a certain target element curve of the reference winding, which is not limited in the embodiment of the present invention.
In the embodiment of the invention, after the to-be-detected winding target element curve of the transformer to be detected is obtained, the to-be-detected winding target element curve and the reference winding target element curve can be further subjected to curve matching so as to obtain a curve matching result of the to-be-detected winding target element curve. The non-to-be-measured transformer may be a transformer that is not currently undergoing winding deformation detection, i.e., a transformer that is not currently undergoing winding deformation detection. The reference winding target element curve is a winding target element curve of a transformer which is not to be measured, namely, the reference winding target element curve is not a winding target element curve of the transformer which is currently used for detecting winding deformation. It is understood that the reference winding target element curve is not a winding target element curve of a winding to be detected of a transformer currently performing winding deformation detection, nor is it a winding target element curve of other windings of the transformer currently performing winding deformation detection except the winding to be detected. The winding target element curves of different windings in the transformer to be tested are different, and the transformer to be tested is likely to have deformation of the different windings to a similar degree, so that the reference winding target element curve is not the winding target element curve of other windings except the winding to be tested of the transformer for current winding deformation detection.
S130, determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
The winding deformation detection result may be a result obtained by performing deformation detection on the winding of the transformer to be detected, for example, may be a result of a degree of winding deformation, or may be a result of normal winding, or the like, which is not limited in the embodiment of the present invention.
In the embodiment of the invention, after the curve matching result of the winding target element curve to be detected is obtained by performing curve matching on the winding target element curve to be detected and the reference winding target element curve, the winding deformation detection result of the transformer to be detected can be further determined according to the curve matching result. For example, if the winding target element curve to be detected matches the reference winding target element curve of the normal winding state, it may be determined that the winding to be detected is a normal winding. If the target element curve of the winding to be detected is matched with the target element curve of the reference winding in the deformed winding state, the winding to be detected can be determined to be the deformed winding.
According to the technical scheme, the winding deformation detection result of the transformer to be detected is determined according to the curve matching result by acquiring the target element curve of the winding to be detected of the transformer to be detected and performing curve matching on the target element curve of the winding to be detected and the reference winding target element curve of the non-transformer to be detected, so that the problems that the accuracy and the reliability of the winding deformation detection result of the transformer are poor due to the fact that whether the transformer winding is deformed or not cannot be accurately judged in the existing transformer winding detection method are solved, the deformation of the transformer winding can be accurately detected, and the accuracy and the reliability of the winding deformation detection result of the transformer are improved.
Example two
Fig. 2 is a flowchart of a transformer winding detection method provided by a second embodiment of the present invention, in which the above technical solutions are further refined, and a curve matching result of a to-be-detected winding target element curve and a reference winding target element curve is obtained by performing curve matching on the to-be-detected winding target element curve, and a plurality of specific alternative implementation manners of determining the reference winding target element curve according to the original winding target element curve are provided. The technical solution in this embodiment may be combined with each of the alternatives in one or more embodiments described above. As shown in fig. 2, the method may include the steps of:
s210, acquiring a target element curve of a winding to be detected of the transformer to be detected.
S220, acquiring an original winding target element curve of the transformer not to be tested; the original winding target element curve comprises at least one of a factory test winding target element curve, a handover test winding target element curve or a periodic test winding target element curve.
The original winding target element curve may be an original winding target element curve, for example, a factory test winding target element curve, a handover test winding target element curve, or a periodic test winding target element curve, which is not limited in the embodiment of the present invention. The factory test winding target element curve may be a curve of target elements of the winding when the transformer is factory tested. The cross-over test winding target element curve may be a curve of target elements of the winding when the transformer is cross-over. The periodic test winding target element curve may be a curve of a target element of the winding when the transformer is periodic tested.
In the embodiment of the invention, the original winding target element curve of the transformer not to be tested is obtained, so that the reference winding target element curve is determined according to the original winding target element curve. Optionally, the obtaining of the original winding target element curve of the non-to-be-measured transformer may be obtaining at least one of a factory test winding target element curve, a handover test winding target element curve or a periodic test winding target element curve of the non-to-be-measured transformer.
S230, determining the reference winding target element curve according to the original winding target element curve.
In the embodiment of the invention, after the original winding target element curve of the transformer not to be tested is obtained, the reference winding target element curve can be further determined according to the original winding target element curve.
Optionally, determining the reference winding target element curve from the original winding target element curve may include: analyzing the original winding target element curve by a finite element analysis method to determine the circuit parameters of the transformer which is not to be tested; determining a normal winding target element curve and a deformed winding target element curve of the non-to-be-tested transformer according to circuit parameters of the non-to-be-tested transformer by a finite element analysis method; the deformation winding target element curves comprise a slight deformation winding target element curve, an obvious deformation winding target element curve and a serious deformation winding target element curve; and determining a reference winding target element curve according to the normal winding target element curve and the deformed winding target element curve.
The finite element analysis method may be a method of finite element simulation by finite element software. By way of example, the finite element analysis method may be a method of performing finite element simulation by finite element software such as ANSYS (large general purpose finite element analysis software developed by ANSYS corporation, usa), COMSOL (large advanced numerical simulation software), or the like. The circuit parameter may be a capacitance or inductance parameter of the transformer, which is not limited in this embodiment of the present invention. The normal winding target element curve may be a winding target element curve in a normal state of the winding. The deformed winding target element curve may be a winding target element curve in a winding deformed state. The slightly deformed winding target element curve may be a winding target element curve in a slightly deformed state of the winding. The apparent deformation winding target element curve may be a winding target element curve in an apparent deformation state of the winding. The severely deformed winding target element curve may be a winding target element curve in a severely deformed state of the winding.
Specifically, the original winding target element curve is analyzed through a finite element analysis method, circuit parameters of the waste transformer to be tested are determined, and the normal winding target element curve and the deformed winding target element curve of the non-to-be-tested transformer are determined according to the circuit parameters of the non-to-be-tested transformer through the finite element analysis method, so that the reference winding target element curve is determined according to the normal winding target element curve and the deformed winding target element curve.
Optionally, the transformer winding detection method may further include: determining an interference winding target element curve of the non-to-be-tested transformer according to circuit parameters of the non-to-be-tested transformer by a finite element analysis method; accordingly, determining a reference winding target element curve from the normal winding target element curve and the deformed winding target element curve may include: and determining a reference winding target element curve according to the normal winding target element curve, the deformed winding target element curve and the interference winding target element curve.
The interference winding target element curve may be a winding target element curve of the winding in an interference state, for example, may be a winding target element curve of the winding in an electromagnetic interference state under a strong electric field, which is not limited in the embodiment of the present invention.
Specifically, determining an interference winding target element curve of the non-to-be-measured transformer according to circuit parameters of the non-to-be-measured transformer by a finite element analysis method, and determining a reference winding target element curve according to a normal winding target element curve, a deformation winding target element curve and the interference winding target element curve.
Optionally, after determining the reference winding target element curve according to the original winding target element curve, the method may further include: determining target delivery information of each transformer not to be tested; and classifying the target element curves of the reference windings according to the target factory information of each transformer not to be tested.
The target factory information may be target information in factory information of the non-to-be-tested transformer, for example, may be a manufacturer of the non-to-be-tested transformer, may be a production lot of the non-to-be-tested transformer, or may be a voltage level of the non-to-be-tested transformer, which is not limited in the embodiment of the present invention.
Specifically, after the reference winding target element curve is determined according to the original winding target element curve, the target factory information of each non-to-be-measured transformer can be further determined, so that the reference winding target element curve is classified according to the target factory information of each non-to-be-measured transformer, and therefore the efficiency and the accuracy of winding deformation detection are improved.
S240, performing curve matching on the to-be-detected winding target element curve and the reference winding target element curve to obtain a curve matching result of the to-be-detected winding target element curve; the reference winding target element curve is a winding target element curve of a transformer which is not to be measured.
Optionally, before performing curve matching on the winding target element curve to be detected and the reference winding target element curve, the method may further include: carrying out validity test on a target element curve of the winding to be detected; and under the condition that the to-be-detected winding target element curve is determined to not pass the validity check, returning to execute the operation of acquiring the to-be-detected winding target element curve of the to-be-detected transformer until the to-be-detected winding target element curve is determined to pass the validity check.
The validity check may be to check whether the winding target element curve to be detected is valid. The validity test may be, for example, to test whether the winding target element curve to be detected is continuous, or to test whether the winding target element curve to be detected is smooth, etc., which is not limited by the embodiment of the present invention.
Specifically, before the curve matching is performed on the winding target element curve to be detected and the reference winding target element curve, validity test may be performed on the winding target element curve to be detected, so as to determine whether the winding target element curve to be detected passes the validity test. If the to-be-detected winding target element curve does not pass the validity check, the operation of acquiring the to-be-detected winding target element curve of the to-be-detected transformer can be performed in a returning mode until the to-be-detected winding target element curve is determined to pass the validity check.
Optionally, performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected may include: determining the curve matching degree of a winding target element curve to be detected and a reference winding target element curve; and determining a curve matching result of the target element curve of the winding to be detected according to the curve matching degree.
The curve matching degree may be a matching degree of the curve. The curve matching degree may be a range of curve matching degree, such as high matching, medium matching or low matching, or may be a numerical value of curve matching degree, such as 95% matching degree, 80% matching degree or 60% matching degree, which is not limited by the embodiment of the present invention.
Specifically, after the reference winding target element curve is determined according to the original winding target element curve, the curve matching degree of the winding target element curve to be detected and the reference winding target element curve can be further determined, so that the curve matching result of the winding target element curve to be detected is determined according to the curve matching degree. It is understood that the curve matching result may be one or more reference winding target element curves having the highest degree of curve matching with the winding target element curve to be detected.
S250, determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
It should be noted that fig. 2 is only a schematic diagram of one implementation manner, and the step S210 and the steps S220-S230 have no sequence relationship, and the step S210 may be implemented first, then the steps S220-S230 may be implemented first, then the step S210 may be implemented, or both may be implemented in parallel.
According to the technical scheme, the target element curve of the winding to be detected of the transformer to be detected is obtained, the original winding target element curve of the transformer not to be detected is obtained, the reference winding target element curve is determined according to the original winding target element curve, the target element curve of the winding to be detected is subjected to curve matching with the reference winding target element curve, so that the curve matching result of the target element curve of the winding to be detected is obtained, the winding deformation detection result of the transformer to be detected is determined according to the curve matching result, the problems that the accuracy of the transformer winding detection result is poor and the reliability is low due to the fact that whether the transformer winding cannot be accurately judged are deformed or not in the existing transformer winding detection method are solved, the transformer winding deformation can be accurately detected, and therefore the accuracy and the reliability of the transformer winding deformation detection result are improved.
In order to enable those skilled in the art to better understand the detection method of the transformer winding in the embodiment of the invention, an application scenario of a amplitude-frequency response curve of the transformer winding is specifically described as an example.
The frequency response method (Frequency Response Analysis, FRA) can be to obtain an amplitude-frequency response curve with the abscissa being the frequency and the ordinate being the response amplitude by measuring the response amplitude of the transformer winding under different frequencies, so as to realize detection of the transformer winding by comparing the amplitude-frequency response curve of the transformer.
If the resonance point position of the low frequency band (1 kHz-100 kHz) of the amplitude-frequency response curve of the winding to be detected is obviously changed, which indicates that the inductance of the winding to be detected is changed, the winding to be detected may have a short circuit condition between turns or cakes. When the frequency is lower, the capacitance formed by the capacitance to ground and the inter-cake capacitance of the winding to be detected is larger, and the inductance is smaller. If the inductance of the winding to be detected changes, the peak or trough position of the low-frequency part of the amplitude-frequency response curve of the winding to be detected is caused to obviously move. It will be appreciated that the amplitude-frequency response curves of the low frequency bands of the three phase windings of most transformers are very similar.
If the resonance point position of the medium frequency (100 kHz-600 kHz) of the amplitude-frequency response curve of the winding to be detected is obviously changed, the local deformation phenomena such as torsion, bulge and the like of the winding to be detected are indicated. The amplitude-frequency response curve in the frequency range has more peaks and troughs, and can sensitively reflect the change of inductance and capacitance of the distribution of the winding to be detected.
If the resonance point position of the high-frequency band (> 600 kHz) of the amplitude-frequency response curve of the winding to be detected is obviously changed, which means that the capacitance to ground of the winding to be detected is changed, the conditions of integral displacement of the winding, lead displacement and the like may exist. When the frequency is higher, the inductance of the winding is larger, the capacitance is smaller, and the inter-cake capacitance of the winding to be detected is far larger than the capacitance to ground, so that the change of the distribution positions of the wave crest and the wave trough is mainly based on the influence of the capacitance to ground. Because the frequency band is easily influenced by the test lead, and the deformation phenomenon generally has obvious response in the middle frequency band, the high-frequency band test data is not used as main information of winding deformation analysis.
Fig. 3 is a flowchart of a specific example of a method for detecting a transformer winding according to the second embodiment of the present invention, as shown in fig. 3, the method may specifically include the following steps:
acquiring an amplitude-frequency response curve of a winding to be detected; screening the validity of the amplitude-frequency response curve of the winding to be detected; if the amplitude-frequency response curve of the winding to be detected is invalid, the amplitude-frequency response curve of the winding to be detected is obtained again; if the amplitude-frequency response curve of the winding to be detected is effective, comparing the amplitude-frequency response curve of the winding to be detected with the curve in the amplitude-frequency response curve expert database; the comparison of the amplitude-frequency response curve of the winding to be detected with the curve in the amplitude-frequency response curve expert database may include comparing the amplitude-frequency response curve of the winding to be detected with a normal curve in the amplitude-frequency response curve expert database, comparing the amplitude-frequency response curve of the winding to be detected with different deformation type curves in the amplitude-frequency response curve expert database, and comparing the amplitude-frequency response curve of the winding to be detected with different interference curves in the amplitude-frequency response curve expert database; and taking the matching degree of curve comparison as an expert database judgment basis to obtain a transformer winding deformation detection result, thereby outputting the transformer winding deformation detection result.
Specifically, the establishing of the amplitude-frequency response curve expert database may specifically include the following steps: the method comprises the steps of obtaining amplitude-frequency response curves of previous tests such as factory tests, handover tests or periodic preventive tests of transformers, researching amplitude-frequency response curve data, carrying out finite element simulation by utilizing finite element software ANSYS, COMSOL and the like, calculating capacitance and inductance parameters of an equivalent circuit under the amplitude-frequency response curves of the transformers, and simultaneously simulating normal transformer winding curves, transformer winding deformation curves with different degrees and transformer winding deformation curves under interference conditions, so that a winding deformation curve expert library is established. And in the winding deformation curve expert library, similar archiving is carried out on the amplitude-frequency response curves of the transformers of the same manufacturer, the same batch and the same voltage level. It can be understood that in performing finite element calculations, the more important data are the frequency of the resonance points (peaks and valleys of the curve) of the amplitude response curve, which are important bases for determining the deformation of the transformer winding, and the corresponding response amplitudes.
According to the technical scheme, the amplitude-frequency response curve expert library is created, and the amplitude-frequency response curve of the winding to be detected is compared with the curve in the amplitude-frequency response curve expert library, so that the accurate identification and diagnosis of the amplitude-frequency response curve are realized, the deformation of the transformer winding can be accurately detected, and the accuracy and reliability of the deformation detection result of the transformer winding are improved.
Example III
Fig. 4 is a schematic diagram of a transformer winding detection apparatus according to a third embodiment of the present invention, as shown in fig. 4, where the apparatus includes: a target element curve acquisition module 410, a target element curve matching module 420, and a deformation detection result determination module 430, wherein:
a target element curve acquisition module 410, configured to acquire a target element curve of a winding to be detected of the transformer to be detected;
the target element curve matching module 420 is configured to perform curve matching on the winding target element curve to be detected and a reference winding target element curve, so as to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested;
and the deformation detection result determining module 430 is configured to determine a winding deformation detection result of the transformer to be tested according to the curve matching result.
According to the technical scheme, the winding deformation detection result of the transformer to be detected is determined according to the curve matching result by acquiring the target element curve of the winding to be detected of the transformer to be detected and performing curve matching on the target element curve of the winding to be detected and the reference winding target element curve of the non-transformer to be detected, so that the problems that the accuracy and the reliability of the winding deformation detection result of the transformer are poor due to the fact that whether the transformer winding is deformed or not cannot be accurately judged in the existing transformer winding detection method are solved, the deformation of the transformer winding can be accurately detected, and the accuracy and the reliability of the winding deformation detection result of the transformer are improved.
Optionally, the target element curve matching module 420 may be specifically configured to: carrying out validity test on a target element curve of the winding to be detected; and under the condition that the to-be-detected winding target element curve is determined to not pass the validity check, returning to execute the operation of acquiring the to-be-detected winding target element curve of the to-be-detected transformer until the to-be-detected winding target element curve is determined to pass the validity check.
Optionally, the target element curve matching module 420 may be further specifically configured to: acquiring an original winding target element curve of a transformer not to be tested; the original winding target element curve comprises at least one of a factory test winding target element curve, a handover test winding target element curve or a periodic test winding target element curve; and determining a reference winding target element curve according to the original winding target element curve.
Optionally, the target element curve matching module 420 may be further configured to: analyzing the original winding target element curve by a finite element analysis method to determine the circuit parameters of the transformer which is not to be tested; determining a normal winding target element curve and a deformed winding target element curve of the non-to-be-tested transformer according to circuit parameters of the non-to-be-tested transformer by a finite element analysis method; the deformation winding target element curves comprise a slight deformation winding target element curve, an obvious deformation winding target element curve and a serious deformation winding target element curve; and determining a reference winding target element curve according to the normal winding target element curve and the deformed winding target element curve.
Optionally, the target element curve matching module 420 may be further configured to: determining an interference winding target element curve of the non-to-be-tested transformer according to circuit parameters of the non-to-be-tested transformer by a finite element analysis method; and determining a reference winding target element curve according to the normal winding target element curve, the deformed winding target element curve and the interference winding target element curve.
Optionally, the target element curve matching module 420 may be further configured to: determining target delivery information of each transformer not to be tested; and classifying the target element curves of the reference windings according to the target factory information of each transformer not to be tested.
Optionally, the target element curve matching module 420 may be further configured to: determining the curve matching degree of a winding target element curve to be detected and a reference winding target element curve; and determining a curve matching result of the target element curve of the winding to be detected according to the curve matching degree.
The transformer winding detection device can execute the transformer winding detection method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be referred to the method for detecting a transformer winding provided in any embodiment of the present invention.
Since the above-described transformer winding detection apparatus is an apparatus capable of executing the transformer winding detection method according to the embodiment of the present application, those skilled in the art will be able to understand the specific implementation of the transformer winding detection apparatus according to the embodiment of the present application and various modifications thereof based on the transformer winding detection method according to the embodiment of the present application, so how the transformer winding detection apparatus implements the transformer winding detection method according to the embodiment of the present application will not be described in detail herein. The device used by those skilled in the art to implement the method for detecting the winding of the transformer in the embodiment of the present application is within the scope of the present application.
Example IV
Fig. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application. Fig. 5 illustrates a block diagram of an exemplary electronic device 12 suitable for use in implementing embodiments of the present application. The electronic device 12 shown in fig. 5 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 5, the electronic device 12 is in the form of a general purpose computing device. Components of the electronic device 12 may include, but are not limited to: one or more processors 16, a memory 28, a bus 18 that connects the various system components, including the memory 28 and the processor 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry standard architecture (Industry Standard Architecture, ISA) bus, micro channel architecture (Micro Channel Architecture, MCA) bus, enhanced ISA bus, video electronics standards association (Video Electronics Standards Association, VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.
Electronic device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory, RAM) 30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard disk drive"). Although not shown in fig. 5, a disk drive for reading from and writing to a removable nonvolatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from and writing to a removable nonvolatile optical disk (e.g., a Compact Disc-Read Only Memory (CD-ROM), digital versatile Disc (Digital Video Disc-Read Only Memory, DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the electronic device 12, and/or any devices (e.g., network card, modem, etc.) that enable the electronic device 12 to communicate with one or more other computing devices. Such communication may be via an Input/Output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., local area network (Local Area Network, LAN), wide area network Wide Area Network, WAN) and/or a public network, such as the internet) via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 over the bus 18. It should be appreciated that although not shown in fig. 5, other hardware and/or software modules may be used in connection with electronic device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, (Redundant Arrays of Independent Disks, RAID) systems, tape drives, data backup storage systems, and the like.
The processor 16 executes a program stored in the memory 28 to perform various functional applications and data processing, thereby implementing the transformer winding detection method provided by the embodiment of the present invention: acquiring a target element curve of a winding to be detected of a transformer to be detected; performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested; and determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
Example five
A fifth embodiment of the present invention further provides a computer storage medium storing a computer program, which when executed by a computer processor is configured to perform the transformer winding detection method according to any one of the foregoing embodiments of the present invention: acquiring a target element curve of a winding to be detected of a transformer to be detected; performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested; and determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory ((Erasable Programmable Read Only Memory, EPROM) or flash Memory), an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. A method of detecting a transformer winding, comprising:
acquiring a target element curve of a winding to be detected of a transformer to be detected;
acquiring an original winding target element curve of a transformer not to be tested; the original winding target element curve comprises at least one of a factory test winding target element curve, a handover test winding target element curve or a periodic test winding target element curve;
determining a reference winding target element curve according to the original winding target element curve;
analyzing the original winding target element curve by a finite element analysis method to determine the circuit parameters of the transformer not to be tested;
Determining a normal winding target element curve and a deformed winding target element curve of the non-to-be-tested transformer according to the circuit parameters of the non-to-be-tested transformer by a finite element analysis method; the deformation winding target element curves comprise a slight deformation winding target element curve, an obvious deformation winding target element curve and a serious deformation winding target element curve;
determining the reference winding target element curve according to the normal winding target element curve and the deformed winding target element curve;
performing curve matching on the winding target element curve to be detected and the reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested;
and determining a winding deformation detection result of the transformer to be detected according to the curve matching result.
2. The method of claim 1, further comprising, prior to said curve matching said winding target element curve to be detected with a reference winding target element curve:
carrying out validity check on the winding target element curve to be detected;
And under the condition that the to-be-detected winding target element curve is determined to not pass the validity check, returning to execute the operation of acquiring the to-be-detected winding target element curve of the transformer to be detected until the to-be-detected winding target element curve is determined to pass the validity check.
3. The method according to claim 1, wherein the method further comprises:
determining an interference winding target element curve of the non-to-be-tested transformer according to the circuit parameters of the non-to-be-tested transformer by a finite element analysis method;
the determining the reference winding target element curve according to the normal winding target element curve and the deformed winding target element curve includes:
and determining the reference winding target element curve according to the normal winding target element curve, the deformed winding target element curve and the interference winding target element curve.
4. The method of claim 1, further comprising, after said determining said reference winding target element profile from said original winding target element profile:
determining target factory information of each non-transformer to be tested;
and classifying the reference winding target element curves according to the target factory information of each non-to-be-tested transformer.
5. The method according to claim 1, wherein the curve matching the winding target element curve to be detected with a reference winding target element curve to obtain a curve matching result of the winding target element curve to be detected includes:
determining the curve matching degree of the winding target element curve to be detected and the reference winding target element curve;
and determining a curve matching result of the to-be-detected winding target element curve according to the curve matching degree.
6. A transformer winding detection apparatus, comprising:
the target element curve acquisition module is used for acquiring a target element curve of a winding to be detected of the transformer to be detected;
the target element curve matching module is used for acquiring an original winding target element curve of the transformer not to be tested; the original winding target element curve comprises at least one of a factory test winding target element curve, a handover test winding target element curve or a periodic test winding target element curve; determining a reference winding target element curve according to the original winding target element curve;
the target element curve matching module is used for analyzing the original winding target element curve through a finite element analysis method so as to determine the circuit parameters of the transformer which is not to be tested; determining a normal winding target element curve and a deformed winding target element curve of the non-to-be-tested transformer according to circuit parameters of the non-to-be-tested transformer by a finite element analysis method; the deformation winding target element curves comprise a slight deformation winding target element curve, an obvious deformation winding target element curve and a serious deformation winding target element curve; determining a reference winding target element curve according to the normal winding target element curve and the deformed winding target element curve;
The target element curve matching module is further configured to perform curve matching on the winding target element curve to be detected and a reference winding target element curve, so as to obtain a curve matching result of the winding target element curve to be detected; the reference winding target element curve is a winding target element curve of a transformer which is not to be tested;
and the deformation detection result determining module is used for determining the winding deformation detection result of the transformer to be tested according to the curve matching result.
7. An electronic device, the electronic device comprising:
one or more processors;
a storage means for storing one or more programs;
when executed by the one or more processors, causes the one or more processors to implement the transformer winding detection method of any of claims 1-5.
8. A computer storage medium having stored thereon a computer program, which when executed by a processor implements the transformer winding detection method according to any of claims 1-5.
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