CN115882600A - Power box type substation equipment foundation with artificial intelligence - Google Patents
Power box type substation equipment foundation with artificial intelligence Download PDFInfo
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- CN115882600A CN115882600A CN202211481514.4A CN202211481514A CN115882600A CN 115882600 A CN115882600 A CN 115882600A CN 202211481514 A CN202211481514 A CN 202211481514A CN 115882600 A CN115882600 A CN 115882600A
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Abstract
The invention relates to the technical field of substation equipment management, and discloses an electric power box-type substation equipment foundation with artificial intelligence, which comprises a concrete-poured foundation main body and an operation inspection system, wherein the operation inspection system comprises a foundation main body space monitoring point arrangement module, an inspection equipment setting module, a cable laying main body attribute acquisition module, a foundation main body cable operation state image acquisition module, a foundation main body operation environment monitoring module, a safety database, a cable operation risk evaluation module and an early warning display terminal.
Description
Technical Field
The invention relates to the technical field of substation equipment management, in particular to an electric power box type substation equipment foundation with artificial intelligence.
Background
At present, due to the transformation and marketization construction of an urban power grid, an overhead line is changed into a cable to enter the ground, and an urban transformer substation gradually develops towards miniaturization, energy conservation and unattended operation, so that the rapid development and the large amount of application of a box type transformer substation are brought.
In view of the fact that cables are usually required to be buried in the ground in the box-type substation, the box-type substation is not directly built on the ground in the process of building the box-type substation at present, but a substation base main body is built on the ground, and then the substation box body is clamped on the substation base main body. Because the transformer substation foundation is of a hollow concrete structure, cables can be laid in the main space of the transformer substation foundation, and the requirement for burying the cables in the ground is met. As is known to all, a cable has specific requirements on the running environment and the running state of the cable during normal power-on running, the normal insulation level of the cable can be influenced when the running environment and the running state are abnormal, and further the risk of short circuit of the cable is increased, and the semi-closed structure in the transformer substation foundation not only aggravates the running environment adverse degree of the cable, so that the phenomena of high temperature, high humidity and dustiness are frequent, but also causes the appearance defect and the form deformation of the cable, and further causes the running state of the cable to be changed. Therefore, in order to guarantee the operation safety of the cables in the box-type transformer substation, the box-type transformer substation foundation needs to be patrolled and examined.
However, in the conventional inspection mode for the box-type substation foundation, only the operation environment of the cable is concerned about whether the operation environment is suitable, the monitoring of the operation state of the cable is ignored, the inspection range is too limited, and the comprehensiveness of potential safety hazard identification of cable operation is reduced virtually, so that the available value of an inspection result is influenced to a certain extent, and effective guarantee cannot be provided for the operation safety of the cable in the box-type substation foundation.
Disclosure of Invention
In order to solve the technical problems, the invention is realized by the following technical scheme: electric power box-type substation equipment basis with artificial intelligence, including concrete placement's basic main part, the basic main part is hollow structure, and the draw-in groove is seted up at the top, with transformer substation's box adaptation, equidistant ventilation hole of seting up on the lateral wall of basic main part, still including the operation system of patrolling and examining.
The operation inspection system comprises the following modules: and the basic main body space monitoring point laying module is used for uniformly laying monitoring points on the peripheral inner wall of the basic main body.
And the inspection equipment setting module is used for setting an infrared camera in the basic main body and setting an environment acquisition terminal at each monitoring point.
And the cable laying main body attribute acquisition module is used for counting the number of cable laying areas on the inner walls around the basic main body, numbering the line laying areas and acquiring cable laying main body attributes corresponding to the cable laying areas.
And the basic main body cable running state image acquisition module is used for acquiring running state images corresponding to the cables in the basic main body in real time by utilizing the infrared camera.
And the basic main body operating environment monitoring module is used for acquiring operating environment parameters corresponding to the cables in the basic main body in real time through the environment acquisition terminals of the monitoring points.
And the safety database is used for storing action factors corresponding to various cable apparent defect types, storing influence factors corresponding to various cable apparent defect degree types, storing parameters suitable for the operating environment of the cable and storing cable insulation force allowable weakening degrees corresponding to various cable operating voltage grades.
And the cable running risk evaluation module is used for analyzing the cable running risk coefficient corresponding to each cable laying area according to the running state image corresponding to the cable in the basic main body and the running environment parameters corresponding to each monitoring point in the basic main body.
And the early warning display terminal is used for identifying whether a dangerous cable laying area exists or not based on the cable operation risk coefficient corresponding to each cable laying area, and if so, early warning is carried out, the serial number of the dangerous cable laying area is recorded, and the serial number of the dangerous cable laying area is displayed on a display platform of the operation and maintenance center.
In one possible implementation, the cabling body attributes include cabling diameter, cabling length, and cable operating voltage rating.
In one possible embodiment, the operating environment parameters include temperature, humidity, and dust concentration.
In one possible implementation manner, the cable operation risk evaluation module comprises a cable operation state analysis unit, a cable operation environment analysis unit and an integrated analysis unit.
In a possible implementation manner, the cable running state analyzing unit is configured to analyze the abnormal index of the cable running state corresponding to each cable laying area according to the running state image corresponding to the cable in the basic main body, where a specific analysis method is as follows: and extracting the boundary contour corresponding to each cable laying area from the operation state image corresponding to the cable in the basic main body, so as to divide the operation state image corresponding to the cable into the cable operation state images corresponding to each cable laying area.
And extracting cable apparent defect parameters and cable form presentation parameters from the cable running state images corresponding to the cable laying areas, wherein the cable apparent defect parameters comprise cable apparent defect types, cable apparent defect degree categories, cable apparent defect areas and cable apparent defect areas, and the cable form presentation parameters comprise cable bending areas, cable bending lengths and cable bending radii.
And extracting the cable apparent defect type from the cable apparent defect parameters, matching the cable apparent defect type with the action factors corresponding to various cable apparent defect types stored in the safety database, and matching the action factors corresponding to the cable apparent defect types in each cable laying area.
And extracting cable apparent defect degree categories from the cable apparent defect parameters, matching the cable apparent defect degree categories with the influence factors corresponding to the cable apparent defect degree categories stored in the safety database, and matching the influence factors corresponding to the cable apparent defect degree categories in each cable laying area.
Extracting the apparent defect area of the cable from the apparent defect parameters of the cable, and calculating the apparent defect degree AD of the cable corresponding to each cable laying area by combining the action factor corresponding to the apparent defect type of the cable and the influence factor corresponding to the apparent defect degree category of the cable i The calculation formula is
Wherein epsilon i 、λ i 、s i Respectively expressed as an action factor corresponding to the cable apparent defect type, an influence factor corresponding to the cable apparent defect degree category and a cable apparent defect area in the ith cable laying area, wherein i is the number of the cable laying area, and i =1,2, K, n, s 0 The defect area is expressed as a set allowable defect area, e is expressed as a natural constant, and a and b are respectively expressed as correction coefficients corresponding to a predefined cable apparent defect type and a cable apparent defect degree category.
Extracting a cable bending area from the cable form presenting parameters, extracting a cable apparent defect area from the cable apparent defect parameters, comparing the cable bending area with the cable apparent defect area, judging whether overlapping exists, and if so, acquiring the overlapping length of the cable bending area and the cable apparent defect area.
Extracting the bending length and the bending radius of the cable from the cable form presentation parameters, and extracting the laying diameter and the laying length of the cable from the cable laying main body attributes, thereby obtaining the cable form abnormality degree through an analysis formula
Analyzing the abnormal degree MD of the cable form corresponding to each cable laying area i In whichl i Expressed as the overlapping length, L, of the cable bending region corresponding to the ith cable laying region and the apparent defect region of the cable i Expressed as the bending length of the cable, L, corresponding to the i-th cable-laying area 0 i denotes a cable laying length corresponding to the ith cable laying area, r i Denoted as cable bending radius, D, for the ith cable laying zone 0 i represents the corresponding cable laying diameter of the ith cable laying area, and K represents a preset allowable bending multiple.
Will AD i And MD i Importing a calculation formula
Calculating a cable running state abnormity index corresponding to each cable laying area>
And alpha is expressed as a weighting factor corresponding to the set apparent defect degree of the cable.
In one possible implementation, the cable apparent defect level categories include an insulation layer defect category and a core defect category.
In a possible implementation manner, the cable operating environment analyzing unit is configured to analyze the severe operating environment index of the cable corresponding to each cable laying area according to the operating environment parameter corresponding to each monitoring point in the basic main body, where the specific analysis method is as follows: and constructing a coordinate system in the basic main body according to a set three-dimensional rectangular coordinate system construction mode, positioning the position coordinates of each monitoring point, and defining the inclusion range of each cable laying area in the constructed coordinate system according to the boundary profile corresponding to each cable laying area, so that the monitoring points included in each cable laying area are determined and marked as designated monitoring points.
And carrying out mean value calculation on the running environment parameters of each designated monitoring point corresponding to each cable laying area to obtain the average running environment parameters corresponding to each cable laying area.
The average operation environment parameters corresponding to each cable laying area are matched with the cables stored in the safety databaseThe parameters of the operation environment are easily compared, and the severe index psi of the cable operation environment corresponding to each cable laying area is calculated i In which
Respectively expressed as average temperature, average humidity, and average dust concentration, T, corresponding to the ith cable laying area 0 、W 0 、C 0 Respectively expressed as the optimum temperature, the optimum humidity, the allowable dust concentration, u T 、u W 、u C Respectively expressed as the corresponding balance factors of the predefined temperature, humidity and dust concentration.
In one possible implementation, the set three-dimensional rectangular coordinate system is constructed by using a central point of the base body space as an origin, and using a direction of the length, a direction of the width, and a direction of the height of the base body as an x-axis, a y-axis, and a z-axis, respectively.
In a possible implementation manner, the comprehensive analysis unit is configured to comprehensively evaluate a cable running risk coefficient corresponding to each cable laying area according to a cable running state anomaly index and a cable running environment severity index corresponding to each cable laying area, where a specific evaluation process is as follows: the cable running state abnormal index and the cable running environment severe index corresponding to each cable laying area are evaluated through an insulation force weakening degree evaluation formula
Evaluating the cable insulation force weakening degree phi corresponding to each cable laying area i Wherein A and B are respectively expressed as correction factors corresponding to the set abnormal index of the running state of the cable and the severe index of the running environment of the cable.
And extracting cable running voltage grades from the cable laying main body attributes, comparing the cable running voltage grades corresponding to the cable laying areas with cable insulation force allowable weakening degrees corresponding to various cable running voltage grades in a safety database, and extracting the cable insulation force allowable weakening degrees corresponding to the cable laying areas from the cable running voltage grades.
Comparing the cable insulation force weakening degree corresponding to each cable laying area with the cable insulation force allowable weakening degree, and calculating the cable operation risk coefficient Q corresponding to each cable laying area i In which
φ i ' the cable insulation force corresponding to the i-th cable-laying area allows for a degree of weakening.
In a possible implementation manner, the identifying whether there is a dangerous cable laying area based on the cable running risk coefficient corresponding to each cable laying area is to compare the cable running risk coefficient corresponding to each cable laying area with a preset warning cable running risk coefficient, identify that there is a dangerous cable laying area if the cable running risk coefficient corresponding to a certain cable laying area is greater than or equal to the preset warning cable running risk coefficient, and use the cable laying area as the dangerous cable laying area.
Compared with the prior art, the invention has the following advantages: 1. according to the invention, the operation state and the operation environment of the cable laid in the box-type substation foundation are monitored, and the cable operation risk coefficient corresponding to each cable laying area is analyzed according to the comprehensive monitoring result, so that the comprehensive inspection of the operation safety of the cable in the box-type substation foundation is realized, the identification range of the cable operation safety hazard is expanded, the available value of the inspection result is improved to a certain extent, and the effective guarantee is favorably provided for the operation safety of the cable in the box-type substation foundation.
2. According to the method, the cable operation voltage grade corresponding to each cable laying area is taken as an analysis basis in the process of analyzing the cable operation risk coefficient corresponding to each cable laying area based on the operation state and the operation environment monitoring result of the cable in the box-type substation foundation, the flexible pertinence characteristic of an analysis mode is highlighted, compared with a uniform analysis mode, the adaptation degree of the analysis result and the actual operation state of the cable is greatly improved by adding the analysis basis, and the analysis result is more reliable.
3. According to the method, the monitoring points are uniformly distributed on the inner wall of the box-type substation foundation when the operation environment of the cable laid in the box-type substation foundation is monitored, so that the designated monitoring points corresponding to the cable laying areas are obtained based on the cable laying areas, the average value of the operation environment parameters of the designated monitoring points corresponding to the cable laying areas is used as the monitoring result of the operation environment, the monitoring error caused by a single monitoring point is avoided to the maximum extent, and the accuracy of the monitoring result is improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic diagram of the basic structure of the box-type substation of the present invention.
Reference numerals are as follows: 1-clamping groove, 2-ventilation hole.
Fig. 2 is a schematic diagram of the connection of the operation inspection system of the present invention.
Fig. 3 is a schematic connection diagram of the cable operation risk assessment module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides an electric box type substation equipment foundation with artificial intelligence, which comprises a concrete poured foundation main body, and further comprises an operation inspection system, wherein the foundation main body is of a hollow structure, the top of the foundation main body is provided with a clamping groove 1 and matched with a substation box body, and the outer side wall of the foundation main body is provided with vent holes 2 at equal intervals.
Referring to fig. 2, the operation inspection system comprises a basic main body space monitoring point laying module, an inspection equipment setting module, a cable laying main body attribute obtaining module, a basic main body cable operation state image acquisition module, a basic main body operation environment monitoring module, a safety database, a cable operation risk evaluation module and an early warning display terminal, wherein the basic main body space monitoring point laying module is connected with the inspection equipment setting module, the inspection equipment setting module is respectively connected with the basic main body cable operation state image acquisition module and the basic main body operation environment monitoring module, the cable laying main body attribute obtaining module, the basic main body cable operation state image acquisition module and the basic main body operation environment monitoring module are all connected with the cable operation risk evaluation module, the cable operation risk evaluation module is connected with the early warning display terminal, and the safety database is connected with the cable operation risk evaluation module.
And the basic main body space monitoring point laying module is used for uniformly laying monitoring points on the inner walls around the basic main body and numbering the monitoring points.
According to the method, the monitoring points are uniformly distributed on the inner wall of the box-type substation foundation when the operation environment of the cable laid in the box-type substation foundation is monitored, so that the designated monitoring points corresponding to the cable laying areas are obtained based on the cable laying areas, the average value of the operation environment parameters of the designated monitoring points corresponding to the cable laying areas is used as the monitoring result of the operation environment, the monitoring error caused by a single monitoring point is avoided to the maximum extent, and the accuracy of the monitoring result is improved.
Patrol and examine equipment setting module and be used for setting up infrared camera in basic main part to set up environment acquisition terminal at each monitoring point, wherein environment acquisition terminal comprises temperature sensor, humidity transducer and dust concentration sensor.
It should be noted that above-mentioned adoption infrared camera carries out cable running state image acquisition makes collection light not good based on the influence that basic main part received semi-enclosed construction, and clear image can't be gathered to ordinary camera under the not good condition of light, consequently need use infrared camera can gather out fresh image under the not good condition of light.
The cable laying main body attribute obtaining module is used for counting the number of cable laying areas on the peripheral inner wall of the basic main body, numbering the line laying areas and simultaneously obtaining cable laying main body attributes corresponding to the cable laying areas, wherein the cable laying main body attributes comprise cable laying diameter, cable laying length and cable operation voltage grade.
The cable running state image acquisition module of the basic main body is used for acquiring running state images corresponding to the cables in the basic main body in real time by using an infrared camera.
The basic main body operation environment monitoring module is used for acquiring operation environment parameters corresponding to cables in the basic main body in real time through environment acquisition terminals of all monitoring points, wherein the operation environment parameters comprise temperature, humidity and dust concentration.
It should be explained that the reason why the temperature, humidity and dust concentration are used as the parameters of the cable operating environment is that insulation breakdown occurs when the temperature of the operating environment is too high under the normal power-on condition of the cable, which is likely to cause power supply faults such as short circuit and trip, when the humidity of the operating environment is too high, on one hand, the insulation performance of air is reduced, some switch devices in the cable are insulated by air gaps, on the other hand, moisture in the air is attached to the cable, and aging occurs under the action of an electric field, which is likely to cause cable breakdown, when the dust concentration of the operating environment is too high, dust is likely to agglutinate and settle in the cable period due to the charge property and water absorption of dust particles, thereby damaging the insulation strength of the cable, and thus it is seen that the temperature, humidity and dust concentration all affect the insulation force of the cable in normal operation and need to collect the cable.
The safety database is used for storing action factors corresponding to various cable apparent defect types, storing influence factors corresponding to various cable apparent defect degree types, storing parameters of a cable suitable operation environment, wherein the parameters of the cable suitable operation environment comprise suitable temperature, suitable humidity and allowable dust concentration, and storing cable insulation force allowable weakening degrees corresponding to various cable operation voltage grades.
Illustratively, the types of apparent defects in cables referred to above include, but are not limited to, cracks, breaks, blotches, skin protrusions.
The cable apparent defect degree category comprises an insulating layer defect category and a wire core defect category, wherein the insulating layer defect category represents that the cable apparent defect is embodied on the insulating layer, and the wire core defect category represents that the cable apparent defect extends into a wire core.
The operation voltage grades of the cable comprise 0.5kV, 1kV, 3kV, 6kV, 10kV, 20kV, 35kV, 60kV, 110kV, 220kV, 330kV and the like.
And the cable running risk evaluation module is used for evaluating a cable running risk coefficient corresponding to each cable laying area according to the running state image corresponding to the cable in the basic main body and the running environment parameter corresponding to each monitoring point in the basic main body.
Referring to fig. 3, the cable operation risk assessment module includes a cable operation state analysis unit, a cable operation environment analysis unit, and a comprehensive analysis unit.
The cable running state analysis unit is used for analyzing the abnormal index of the cable running state corresponding to each cable laying area according to the running state image corresponding to the cable in the basic main body, and the specific analysis method is as follows: and extracting the boundary contour corresponding to each cable laying area from the operation state image corresponding to the cable in the basic main body, so as to divide the operation state image corresponding to the cable into the cable operation state images corresponding to each cable laying area.
And extracting cable apparent defect parameters and cable form presenting parameters from the cable running state images corresponding to the cable laying areas, wherein the cable apparent defect parameters comprise cable apparent defect types, cable apparent defect degree categories, cable apparent defect areas and cable apparent defect areas, and the cable form presenting parameters comprise cable bending areas, cable bending lengths and cable bending radiuses.
And extracting the cable apparent defect type from the cable apparent defect parameters, matching the cable apparent defect type with the action factors corresponding to various cable apparent defect types stored in the safety database, and matching the action factors corresponding to the cable apparent defect types in each cable laying area.
And extracting cable apparent defect degree categories from the cable apparent defect parameters, matching the cable apparent defect degree categories with the influence factors corresponding to the cable apparent defect degree categories stored in the safety database, and matching the influence factors corresponding to the cable apparent defect degree categories in each cable laying area.
Extracting the apparent defect area of the cable from the apparent defect parameters of the cable, and calculating the apparent defect degree AD of the cable corresponding to each cable laying area by combining the action factor corresponding to the apparent defect type of the cable and the influence factor corresponding to the apparent defect degree category of the cable i The calculation formula is
Wherein epsilon i 、λ i 、s i Respectively expressed as an action factor corresponding to the cable apparent defect type, an influence factor corresponding to the cable apparent defect degree category and a cable apparent defect area in the ith cable laying area, wherein i is the number of the cable laying area, and i =1,2, K, n, s 0 The defect area is expressed as a set allowable defect area, e is expressed as a natural constant, and a and b are respectively expressed as correction coefficients corresponding to a predefined cable apparent defect type and a cable apparent defect degree category.
It should be explained that, in the above formula for calculating the apparent defect degree of the cable, the apparent defect area of the cable, the action factor corresponding to the apparent defect type of the cable, and the influence factor corresponding to the apparent defect degree category of the cable all have positive influences on the apparent defect degree of the cable.
Extracting a cable bending area from the cable form presenting parameters, extracting a cable apparent defect area from the cable apparent defect parameters, comparing the cable bending area with the cable apparent defect area, judging whether overlap exists, and if the overlap exists, acquiring the overlapping length of the cable bending area and the cable apparent defect area, wherein the longer the overlapping length is, the larger the apparent defect proportion existing in the cable bending area is.
Extracting the bending length and the bending radius of the cable from the cable form presentation parameters, and extracting the laying diameter and the laying length of the cable from the cable laying main body attributes, thereby obtaining the cable form abnormality degree through an analysis formula
Analyzing the abnormal degree MD of the cable form corresponding to each cable laying area i Wherein l is i Expressed as the overlapping length, L, of the cable bending region corresponding to the ith cable laying region and the apparent defect region of the cable i Expressed as the bending length of the cable, L, corresponding to the i-th cable-laying area 0 i denotes a cable laying length corresponding to the ith cable laying area, r i Expressed as the cable bending radius, D, corresponding to the i-th cable laying area 0 i represents the cable laying diameter corresponding to the ith cable laying area, and K represents the preset allowable bending multiple.
It should be explained again that, in the above formula for calculating the degree of abnormality of cable morphology
The larger the bending length of the cable is, the larger the proportion of the bent part of the cable is, the larger the bending radius of the cable is, the more easily the insulation layer of the electric wire is damaged, and the accelerated aging of the outer insulation layer of the cable is caused.
Will AD i And MD i Importing a calculation formula
Calculating a cable running state abnormity index corresponding to each cable laying area>
And alpha is expressed as a weighting factor corresponding to the set apparent defect degree of the cable.
The cable running environment analysis unit is used for analyzing the cable running environment severe index corresponding to each cable laying area according to the running environment parameters corresponding to each monitoring point in the basic main body, and the specific analysis method is as follows: and constructing a coordinate system in the basic main body according to a set three-dimensional rectangular coordinate system construction mode, positioning the position coordinates of each monitoring point, and defining the inclusion range of each cable laying area in the constructed coordinate system according to the boundary contour corresponding to each cable laying area, so that the monitoring points included in each cable laying area are determined and recorded as designated monitoring points.
The three-dimensional rectangular coordinate system is constructed by taking a central point of a basic main body space as an origin, and taking the length direction, the width direction and the height direction of the basic main body as an x axis, a y axis and a z axis respectively.
And performing mean calculation on the operating environment parameters of each cable laying area corresponding to each designated monitoring point to obtain average operating environment parameters corresponding to each cable laying area, including average temperature, average humidity and average dust concentration.
Comparing the average operating environment parameters corresponding to each cable laying area with the cable suitable operating environment parameters stored in the safety database, and calculating the severe index psi of the cable operating environment corresponding to each cable laying area i Wherein
Respectively expressed as average temperature, average humidity, and average dust concentration, T, corresponding to the ith cable laying area 0 、W 0 、C 0 Respectively expressed as the optimum temperature, the optimum humidity, the allowable dust concentration, u T 、u W 、u C Respectively expressed as predefined trade-off factors for temperature, humidity, dust concentration.
The comprehensive analysis unit is used for comprehensively evaluating the cable running risk coefficient corresponding to each cable laying area according to the cable running state abnormity index and the cable running environment severe index corresponding to each cable laying area, and the specific evaluation process is as follows: the cable running state abnormal index and the cable running environment severe index corresponding to each cable laying area are evaluated through an insulation force weakening degree evaluation formula
Evaluating the cable insulation force weakening phi corresponding to each cable laying area i Wherein A and B are respectively expressed as correction factors corresponding to the set abnormal index of the running state of the cable and the severe index of the running environment of the cable.
And extracting the cable running voltage grade from the cable laying main body attribute, comparing the cable running voltage grade corresponding to each cable laying area with cable insulation force allowable weakening degrees corresponding to various cable running voltage grades in the safety database, and extracting the cable insulation force allowable weakening degree corresponding to each cable laying area from the cable running voltage grade.
Comparing the cable insulation force weakening degree corresponding to each cable laying area with the cable insulation force allowable weakening degree, and calculating the cable operation risk coefficient Q corresponding to each cable laying area i In which
φ i ' the cable insulation force corresponding to the i-th cable-laying area allows for a degree of weakening.
According to the invention, in the process of analyzing the cable running risk coefficient corresponding to each cable laying area based on the running state and running environment monitoring result of the cable in the box-type substation foundation, the running voltage grade of the cable corresponding to each cable laying area is taken as the analysis basis, so that the flexible pertinence characteristic of the analysis mode is highlighted, and the analysis result is more reliable due to the fact that the allowable insulation force weakening degrees of different running voltage grades to the cable are different, compared with a uniform analysis mode, the adaptation degree of the analysis result and the actual running state of the cable is greatly improved by adding the analysis basis.
The early warning display terminal is used for identifying whether a dangerous cable laying area exists or not based on the cable operation risk coefficient corresponding to each cable laying area, if so, early warning is carried out, the serial number of the dangerous cable laying area is recorded, and the serial number of the dangerous cable laying area is displayed on a display platform of the operation and maintenance center.
The method has the advantages that operation and maintenance personnel can know operation risks existing in the cable laying area in the box-type substation foundation in time, timeliness of safe operation and maintenance of the cable is improved, serious potential safety hazards are avoided, meanwhile, the serial number of the dangerous cable laying area is displayed, the operation and maintenance personnel can conveniently find a risk position quickly, operation and maintenance efficiency is improved, and the method has the advantage of being high in practicability.
The identification method for identifying whether the dangerous cable laying area corresponds to the dangerous cable laying area based on the cable running risk coefficient corresponding to each cable laying area includes the steps of comparing the cable running risk coefficient corresponding to each cable laying area with a preset warning cable running risk coefficient, identifying the dangerous cable laying area if the cable running risk coefficient corresponding to a certain cable laying area is larger than or equal to the preset warning cable running risk coefficient, and taking the cable laying area as the dangerous cable laying area.
According to the invention, the operation state and the operation environment of the cable laid in the box-type substation foundation are monitored, and then the cable operation risk coefficient corresponding to each cable laying area is analyzed according to the comprehensive monitoring result, so that the comprehensive inspection of the operation safety of the cable in the box-type substation foundation is realized, and the identification range of the potential safety hazard of the cable operation is expanded, thereby improving the available value of the inspection result to a certain extent, and being beneficial to providing effective guarantee for the operation safety of the cable in the box-type substation foundation.
The foregoing is merely illustrative and explanatory of the present invention and various modifications, additions or substitutions may be made to the specific embodiments described by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The power box type substation equipment foundation with the artificial intelligence comprises a concrete-poured foundation main body, wherein the foundation main body is of a hollow structure, the top of the foundation main body is provided with a clamping groove (1) and is matched with a substation box body, and the outer side wall of the foundation main body is provided with vent holes (2) at equal intervals;
the operation inspection system comprises the following modules:
the basic main body space monitoring point arrangement module is used for uniformly arranging monitoring points on the inner walls of the periphery of the basic main body;
the inspection equipment setting module is used for setting an infrared camera in the basic main body and setting an environment acquisition terminal at each monitoring point;
the cable laying main body attribute acquisition module is used for counting the number of cable laying areas on the inner wall around the basic main body, numbering the line laying areas and acquiring cable laying main body attributes corresponding to the cable laying areas;
the system comprises a basic main body cable running state image acquisition module, a basic main body cable running state image acquisition module and a basic main body cable running state image acquisition module, wherein the basic main body cable running state image acquisition module is used for acquiring a running state image corresponding to a cable in a basic main body in real time by utilizing an infrared camera;
the basic main body operation environment monitoring module is used for acquiring operation environment parameters corresponding to the cables in the basic main body in real time through the environment acquisition terminals of all monitoring points;
the safety database is used for storing action factors corresponding to various cable apparent defect types, storing influence factors corresponding to various cable apparent defect degree types, storing cable suitable operation environment parameters and storing cable insulation force allowable weakening degrees corresponding to various cable operation voltage grades;
the cable running risk evaluation module is used for analyzing cable running risk coefficients corresponding to each cable laying area according to running state images corresponding to the cables in the basic main body and running environment parameters corresponding to each monitoring point in the basic main body;
and the early warning display terminal is used for identifying whether a dangerous cable laying area exists or not based on the cable operation risk coefficient corresponding to each cable laying area, and if so, early warning is carried out, the serial number of the dangerous cable laying area is recorded, and the serial number of the dangerous cable laying area is displayed on a display platform of the operation and maintenance center.
2. The power box-type substation equipment foundation with artificial intelligence of claim 1, characterized in that: the cable laying subject attributes include a cable laying diameter, a cable laying length, and a cable operating voltage class.
3. The power box substation equipment foundation with artificial intelligence of claim 2, characterized in that: the operating environment parameters include temperature, humidity, and dust concentration.
4. The electrical box substation equipment foundation with artificial intelligence of claim 3, characterized in that: the cable running risk assessment module comprises a cable running state analysis unit, a cable running environment analysis unit and a comprehensive analysis unit.
5. The electrical box substation equipment foundation with artificial intelligence of claim 4 wherein: the cable running state analysis unit is used for analyzing the abnormal index of the cable running state corresponding to each cable laying area according to the running state image corresponding to the cable in the basic main body, and the specific analysis method is as follows:
extracting boundary outlines corresponding to the cable laying areas from running state images corresponding to cables in the basic main body, and dividing the running state images corresponding to the cables into cable running state images corresponding to the cable laying areas;
extracting cable apparent defect parameters and cable form presenting parameters from cable running state images corresponding to each cable laying area, wherein the cable apparent defect parameters comprise cable apparent defect types, cable apparent defect degree categories, cable apparent defect areas and cable apparent defect areas, and the cable form presenting parameters comprise cable bending areas, cable bending lengths and cable bending radiuses;
extracting cable apparent defect types from the cable apparent defect parameters, matching the cable apparent defect types with action factors corresponding to various cable apparent defect types stored in a safety database, and matching action factors corresponding to the cable apparent defect types in each cable laying area;
extracting cable apparent defect degree categories from the cable apparent defect parameters, matching the cable apparent defect degree categories with the influence factors corresponding to the cable apparent defect degree categories stored in the safety database, and matching the influence factors corresponding to the cable apparent defect degree categories in each cable laying area;
extracting the apparent defect area of the cable from the apparent defect parameters of the cable, and calculating the apparent defect degree AD of the cable corresponding to each cable laying area by combining the action factor corresponding to the apparent defect type of the cable and the influence factor corresponding to the apparent defect degree category of the cable i The calculation formula is
Wherein epsilon i 、λ i 、s i Respectively expressed as an action factor corresponding to the cable apparent defect type, an influence factor corresponding to the cable apparent defect degree category and a cable apparent defect area in the ith cable laying area, wherein i is the number of the cable laying area, and i =1,2, K, n, s 0 The defect area is expressed as a set allowable defect area, e is expressed as a natural constant, and a and b are respectively expressed as a correction coefficient corresponding to a predefined cable apparent defect type and a cable apparent defect degree category;
extracting a cable bending area from the cable form presenting parameters, extracting a cable apparent defect area from the cable apparent defect parameters, comparing the cable bending area with the cable apparent defect area, judging whether overlap exists, and if the overlap exists, acquiring the overlapping length of the cable bending area and the cable apparent defect area;
extracting the bending length and the bending radius of the cable from the cable form presentation parameters, and extracting the laying diameter and the laying length of the cable from the cable laying main body attributes, thereby obtaining the cable form abnormality degree through an analysis formula
Analyzing the abnormal degree MD of the cable form corresponding to each cable laying area i Wherein l is i Expressed as the overlapping length, L, of the cable bending region corresponding to the ith cable laying region and the apparent defect region of the cable i Expressed as the bending length of the cable, L, corresponding to the ith cable laying zone 0 i denotes a cable laying length corresponding to the ith cable laying area, r i Denoted as cable bending radius, D, for the ith cable laying zone 0 i represents the cable laying diameter corresponding to the ith cable laying area, and K represents a preset allowable bending multiple;
will AD i And MD i Importing a calculation formula
Calculating a cable running state abnormity index corresponding to each cable laying area>
And alpha is expressed as a weighting factor corresponding to the set apparent defect degree of the cable.
6. The power box-type substation equipment foundation with artificial intelligence of claim 5, characterized in that: the cable apparent defect degree categories comprise an insulation layer defect category and a core defect category.
7. The power box-type substation equipment foundation with artificial intelligence of claim 5, characterized in that: the cable running environment analysis unit is used for analyzing the cable running environment severe index corresponding to each cable laying area according to the running environment parameters corresponding to each monitoring point in the basic main body, and the specific analysis method is as follows:
constructing a coordinate system in a basic main body according to a set three-dimensional rectangular coordinate system construction mode, positioning the position coordinates of each monitoring point, and defining the inclusion range of each cable laying area in the constructed coordinate system according to the boundary profile corresponding to each cable laying area, so as to determine the included monitoring points in each cable laying area and mark the included monitoring points as designated monitoring points;
carrying out mean value calculation on the running environment parameters of each designated monitoring point corresponding to each cable laying area to obtain average running environment parameters corresponding to each cable laying area;
comparing the average operating environment parameters corresponding to each cable laying area with the cable proper operating environment parameters stored in the safety database, and calculating the cable operating environment severe index psi corresponding to each cable laying area i Wherein
Respectively expressed as average temperature, average humidity, and average dust concentration, T, corresponding to the ith cable laying area 0 、W 0 、C 0 Respectively expressed as the optimum temperature, the optimum humidity, the allowable dust concentration, u T 、u W 、u C Respectively expressed as the corresponding balance factors of the predefined temperature, humidity and dust concentration.
8. The electrical box substation equipment foundation with artificial intelligence of claim 7 wherein: the set three-dimensional rectangular coordinate system is constructed in a mode that a central point of a basic main body space is used as an original point, and the direction of the length, the direction of the width and the direction of the height of the basic main body are respectively used as an x axis, a y axis and a z axis.
9. The power box-type substation equipment foundation with artificial intelligence of claim 8, characterized in that: the comprehensive analysis unit is used for comprehensively evaluating cable running risk coefficients corresponding to the cable laying areas according to the cable running state abnormity index and the cable running environment severe index corresponding to each cable laying area, and the specific evaluation process is as follows:
the cable running state abnormal index and the cable running environment severe index corresponding to each cable laying area pass through an insulation force weakening degree evaluation formula
Evaluating the cable insulation force weakening phi corresponding to each cable laying area i Wherein A and B respectively represent correction factors corresponding to the set abnormal index of the cable running state and the severe index of the cable running environment;
extracting cable running voltage grades from cable laying main body attributes, comparing the cable running voltage grades corresponding to the cable laying areas with cable insulation force allowable weakening degrees corresponding to various cable running voltage grades in a safety database, and extracting the cable insulation force allowable weakening degrees corresponding to the cable laying areas from the cable running voltage grades;
comparing the cable insulation force weakening degree corresponding to each cable laying area with the cable insulation force allowable weakening degree, and calculating the cable operation risk coefficient Q corresponding to each cable laying area i In which
φ i ' the cable insulation force, expressed as the i-th cable run area, allows for a degree of weakening.
10. The power box-type substation equipment foundation with artificial intelligence of claim 1, characterized in that: the identification mode for identifying whether the dangerous cable laying area corresponds to the dangerous cable laying area based on the cable running risk coefficient corresponding to each cable laying area is to compare the cable running risk coefficient corresponding to each cable laying area with a preset warning cable running risk coefficient, identify that the dangerous cable laying area exists if the cable running risk coefficient corresponding to a certain cable laying area is greater than or equal to the preset warning cable running risk coefficient, and use the cable laying area as the dangerous cable laying area.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116700357A (en) * | 2023-08-07 | 2023-09-05 | 国网安徽省电力有限公司合肥供电公司 | Intelligent inspection method for unmanned aerial vehicle formation of overhead transmission line |
| CN117034174A (en) * | 2023-09-26 | 2023-11-10 | 国网安徽省电力有限公司经济技术研究院 | Transformer substation equipment abnormality detection method and system |
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| CN117893103A (en) * | 2024-03-18 | 2024-04-16 | 山东阳谷恒昌电缆集团有限公司 | Cross-linked cable product quality management control system based on cable production line |
| CN117893103B (en) * | 2024-03-18 | 2024-05-24 | 山东阳谷恒昌电缆集团有限公司 | Cross-linked cable product quality management control system based on cable production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116700357A (en) * | 2023-08-07 | 2023-09-05 | 国网安徽省电力有限公司合肥供电公司 | Intelligent inspection method for unmanned aerial vehicle formation of overhead transmission line |
| CN116700357B (en) * | 2023-08-07 | 2023-12-22 | 国网安徽省电力有限公司合肥供电公司 | Intelligent inspection method for unmanned aerial vehicle formation of overhead transmission line |
| CN117309036A (en) * | 2023-08-28 | 2023-12-29 | 佛山职业技术学院 | Intelligent electric power infrastructure environment monitoring method and system |
| CN117034174A (en) * | 2023-09-26 | 2023-11-10 | 国网安徽省电力有限公司经济技术研究院 | Transformer substation equipment abnormality detection method and system |
| CN117034174B (en) * | 2023-09-26 | 2023-12-29 | 国网安徽省电力有限公司经济技术研究院 | Transformer substation equipment abnormality detection method and system |
| CN117893103A (en) * | 2024-03-18 | 2024-04-16 | 山东阳谷恒昌电缆集团有限公司 | Cross-linked cable product quality management control system based on cable production line |
| CN117893103B (en) * | 2024-03-18 | 2024-05-24 | 山东阳谷恒昌电缆集团有限公司 | Cross-linked cable product quality management control system based on cable production line |
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