Substation 3D Modeling System

Abstract

The present invention discloses a three-dimensional modeling system for a substation and an operation method thereof, comprising an equipment input module, a fault monitoring module and a fault analysis module. The equipment input module is used to input equipment information parameters of the substation into the system, the fault monitoring module is used to monitor the operation status of each electrical equipment in the substation in real time, the fault analysis module is used to determine the cause of the fault according to the monitored data, the fault monitoring module comprises a high-definition camera module, a light-capturing and recording module, a thermal imaging module and a data uploading module, the high-definition camera module is used to take pictures inside the substation, the light-capturing and recording module is used to take pictures after detecting the occurrence of an electric arc, the thermal imaging module is used to perform thermal imaging on insulators in the substation to monitor the safety status of the insulators, and the data uploading module is used to upload the monitoring data to the staff background. The present invention has the characteristic of high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of substation three-dimensional modeling, and in particular to a substation three-dimensional modeling system. Background Art

[0002] With the rapid development of my country's power industry, there are more and more problems with traditional power design methods. In order to meet the diversified use needs, power industry design units have gradually introduced modern 3D design systems. From the perspective of traditional power grid and substation design, there are many problems. The use of 3D design can realize the digitalization and visualization of power grid projects, which has a positive impact on the subsequent construction and operation of the project, and has gradually become an auxiliary tool widely used by power design units. Through the in-depth development of the national power grid construction in recent years, 3D design has achieved good results with its all-round and multi-perspective advantages, and has provided strong support for the construction, reconstruction and expansion of my country's power projects.

[0003] Compared with traditional substations, underground substations are box-type substations that are buried underground for installation. They use fully sealed environmentally friendly materials, with an overall protection level of IP68. They can be immersed in water for normal operation, saving floor space, and have the advantages of environmental protection, anti-theft, and no noise. However, for underground substations, when staff conduct maintenance, they often need to enter from the reserved entrance and exit for maintenance personnel and conduct maintenance work in a dark environment, which increases the difficulty of maintenance and is prone to accidents. At the same time, the faults of electrical equipment in underground substation boxes are often difficult to detect and need to be monitored in real time. At present, the monitoring of underground substations is mostly manual inspections, which greatly increases the amount of ineffective work. Therefore, it is necessary to design a high-efficiency substation 3D modeling system. Summary of the invention

[0004] The purpose of the present invention is to provide a three-dimensional modeling system for a substation to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a three-dimensional modeling system for a substation, comprising an equipment input module, a fault monitoring module, and a fault analysis module, characterized in that: the equipment input module is electrically connected to the fault monitoring module, the fault monitoring module is electrically connected to the fault analysis module, the equipment input module is used to enter the equipment information parameters of the substation into the system, the fault monitoring module is used to monitor the operating status of each electrical equipment in the substation in real time, the fault analysis module is used to determine the cause of the fault according to the monitored data, the fault monitoring module comprises a high-definition camera module, a light capture recording module, a thermal imaging module, and a data upload module, the high-definition camera module, the light capture recording module and the thermal imaging module are electrically connected, the high-definition camera module is used to take pictures inside the substation, the light capture recording module is used to take pictures after detecting the occurrence of an arc, the thermal imaging module is used to perform thermal imaging of insulators in the substation to monitor the safety status of the insulators, and the data upload module is used to upload the monitored data to the staff background.

[0006] According to the above technical solution, the equipment input module includes an electrical parameter input module and a three-dimensional model input module. The electrical parameter input module is electrically connected to the three-dimensional model input module. The electrical parameter input module is used to enter the normal working indicators of key electrical equipment in the substation into the system, and the three-dimensional model input module is used to enter the three-dimensional model files of the electrical equipment in the substation into the system.

[0007] According to the above technical solution, the fault analysis module includes a model restoration module, a simulation operation module, and a fault determination module. The model restoration module is electrically connected to the simulation operation module, and the simulation operation module is electrically connected to the fault determination module. The model restoration module is used to restore and splice the three-dimensional model of the electrical equipment in the substation that has been entered, the simulation operation module is used to simulate the operation of the restored three-dimensional model of the substation, and the fault determination module is used to determine the cause of the fault based on the results of the simulation operation.

[0008] According to the above technical solution, the operation method of the substation three-dimensional modeling system includes the following steps:

[0009] Step S1: Before the underground substation starts to be assembled, the equipment input module enters the relevant equipment information into the system;

[0010] Step S2: A high-definition camera module is placed inside the substation to perform real-time detection on the transformer located on the bottom plane. When insulating oil seeps out from the vicinity of the transformer and flows to the bottom plane, stains will be formed on the bottom plane. The high-definition camera module can take photos of the stains formed by the insulating oil flowing into the bottom plane, and analyze the oil leakage of the transformer based on the area of ​​the stains photographed, and then analyze the operation of the transformer to determine whether to remind the inspection personnel to perform maintenance;

[0011] Step S3: The light-capturing and recording module is placed inside the substation, and can monitor the connection nodes of the electrical equipment in the substation in real time. When an arc appears between the devices and emits light, the light-capturing and recording module sends an electrical signal to the high-definition camera module to start shooting the location of the arc, and upload the picture of the location where the arc appears to the background;

[0012] Step S4: The thermal imaging module performs thermal imaging on the insulator to be monitored, and determines whether the insulator is deteriorated according to the color distribution of the imaging;

[0013] Step S5: Based on the data sent back, the staff uses the model restoration module to assemble the various electrical equipment entered into a three-dimensional model of the substation, and performs simulated operation based on the status of each monitored electrical equipment, analyzes and determines the possible consequences of the failure, and decides whether to carry out maintenance work.

[0014] According to the above technical solution, step S2 further includes the following steps:

[0015] Step S21: The bottom plane below the transformer is a special material tarpaulin that can absorb the insulation oil leaking from the transformer and leave traces. There are n 1cm2 traces distributed on the surface of the tarpaulin. 2 A square grid;

[0016] Step S22: After the insulating oil in the transformer seeps out, it flows to the bottom plane to form irregularly shaped oil stains;

[0017] Step S23: calculating the area S of the irregular figure according to the number of grid points L on the boundary and the number of grid points N inside the irregular figure formed by the oil stain;

[0018] Step S24: After calculating the oil stain area, the staff determines whether to notify the maintenance personnel to perform maintenance and replace the oil cloth in time according to the proportion q of the oil stain area S to the oil cloth.

[0019] According to the above technical solution, in step S23, the calculation method of the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is:

[0020] The area of ​​the small square grid distributed on the surface of the tarpaulin under the transformer is 1cm 2 The irregular figure formed by the oil stain will divide the grid points into internal grid points and external grid points. The area S of the irregular figure formed by the oil stain is calculated according to the number of internal grid points and external grid points.

[0021] According to the above technical solution, in step S23, the calculation formula for the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is:

[0022]

[0023] Wherein, N is the number of internal grid points contained in the irregular figure, L is the number of grid points on the boundary of the irregular figure, and k is the conversion coefficient.

[0024] According to the above technical solution, step S4 further includes the following steps:

[0025] Step S41: The degraded insulator has a difference in temperature distribution from the good insulator;

[0026] Step S42: When the insulator deteriorates, its internal structure becomes unstable, and the distributed voltage of the insulator string will jump, resulting in different heat distribution on the insulator;

[0027] Step S43: The thermal imaging device images the insulator according to the different heat distributions on the insulator, and sends the image to the staff backstage for inspection;

[0028] Step S44: In the sent back thermal imaging image of the insulator, the larger the area s of the darker color portion is, the higher the degree of damage B of the insulator is.

[0029] According to the above technical solution, in step S24, the calculation formula of the proportion q of the oil stain area S to the oilcloth is:

[0030]

[0031] Among them, S is the oil stain area, n is the oil cloth area, when 0≤q≤10%, it is normal leakage and no reminder is needed; when q>10%, the oil leakage is large and shows an upward trend. The transformer may be faulty and a maintenance reminder needs to be issued to the staff.

[0032] According to the above technical solution, in step S44, the calculation formula of the damage degree B of the insulator is:

[0033] B=s*η

[0034] Among them, η is the conversion coefficient between area and degree of damage. The larger B is, the higher the degree of damage of the insulator is. The staff can judge whether the insulator needs to be replaced based on the value of the degree of damage B.

[0035] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing an equipment entry module, enters the three-dimensional modeling image of the electrical equipment into the system before the construction of the underground substation, and applies the three-dimensional modeling technology well to the substation field; by providing a fault monitoring module, the operating status of the electrical equipment in the substation is monitored in real time, thereby reducing the inspection burden of the staff; by providing a model restoration module, the monitored fault information is entered into the three-dimensional modeling image, and it is easier to obtain the operating safety possibility of the substation after simulation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0037] In the attached picture:

[0038] Figure 1 It is a schematic diagram of the system module composition of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 The three-dimensional modeling system of the substation includes an equipment input module, a fault monitoring module, and a fault analysis module. The equipment input module is electrically connected to the fault monitoring module, and the fault monitoring module is electrically connected to the fault analysis module. The equipment input module is used to input the equipment information parameters of the substation into the system. The fault monitoring module is used to monitor the operating status of each electrical equipment in the substation in real time. The fault analysis module is used to determine the cause of the fault according to the monitored data. The fault monitoring module includes a high-definition camera module, a light capture recording module, a thermal imaging module, and a data upload module. The high-definition camera module, the light capture recording module and the thermal imaging module are electrically connected. The high-definition camera module is used to take pictures inside the substation. The light capture recording module is used to take pictures after detecting the occurrence of an arc. The thermal imaging module is used to perform thermal imaging on insulators in the substation to monitor the safety status of the insulators. The data upload module is used to upload the monitoring data to the staff background, which reduces the inspection pressure of the staff and improves work efficiency.

[0041] The equipment input module includes an electrical parameter input module and a three-dimensional model input module. The electrical parameter input module is electrically connected to the three-dimensional model input module. The electrical parameter input module is used to enter the normal working indicators of the key electrical equipment in the substation into the system. The three-dimensional model input module is used to enter the three-dimensional model files of the electrical equipment in the substation into the system. The substation equipment can be simulated in advance and the possibility of failure can be judged according to the simulation results.

[0042] The fault analysis module includes a model restoration module, a simulation operation module, and a fault determination module. The model restoration module is electrically connected to the simulation operation module, and the simulation operation module is electrically connected to the fault determination module. The model restoration module is used to restore and splice the three-dimensional model of the electrical equipment in the input substation, the simulation operation module is used to simulate the operation of the restored three-dimensional model of the substation, and the fault determination module is used to determine the cause of the fault based on the results of the simulation operation.

[0043] The operation method of the substation 3D modeling system comprises the following steps:

[0044] Step S1: Before the underground substation starts to be assembled, the equipment input module enters the relevant equipment information into the system;

[0045] Step S2: The high-definition camera module is placed inside the substation, and can perform real-time detection on the transformer located on the bottom plane. When insulating oil seeps out from the vicinity of the transformer and flows to the bottom plane, stains will be formed on the bottom plane. The high-definition camera module can take pictures of the stains formed by the insulating oil flowing into the bottom plane, and analyze the oil leakage of the transformer according to the area of ​​the stains photographed, and then analyze the operation of the transformer, and determine whether to remind the inspection personnel to carry out maintenance, thereby effectively ensuring the safety of the transformer in the substation;

[0046] Step S3: The light-capturing and recording module is placed inside the substation, and can monitor the connection nodes of the electrical equipment in the substation in real time. When an arc appears between the equipment and emits light, the light-capturing and recording module sends an electrical signal to the high-definition camera module to start shooting the location of the arc, and upload the picture of the location where the arc appears to the background for staff to compare and study the plan;

[0047] Step S4: The thermal imaging module performs thermal imaging on the insulator to be monitored, and determines whether the insulator is deteriorated according to the color distribution of the imaging;

[0048] Step S5: Based on the data sent back, the staff uses the model restoration module to assemble the various electrical equipment entered into a three-dimensional model of the substation, and performs simulated operation based on the status of each monitored electrical equipment, analyzes and determines the possible consequences of the failure, and decides whether to carry out maintenance work.

[0049] Step S2 further comprises the following steps:

[0050] Step S21: The bottom plane below the transformer is a tarpaulin made of special material, which can absorb the insulating oil leaked from the transformer and leave traces. The surface of the tarpaulin is distributed with n square grids of 1 cm2;

[0051] Step S22: After the insulating oil in the transformer seeps out, it flows to the bottom plane to form irregularly shaped oil stains;

[0052] Step S23: calculating the area S of the irregular figure according to the number of grid points L on the boundary and the number of grid points N inside the irregular figure formed by the oil stain;

[0053] Step S24: After calculating the oil stain area, the staff determines whether to notify the maintenance personnel to perform maintenance and replace the oil cloth in time according to the proportion q of the oil stain area S to the oil cloth.

[0054] In step S23, the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is calculated as follows:

[0055] The area of ​​the small square grids distributed on the surface of the oilcloth under the transformer is 1 cm2. The irregular pattern formed by the oil stains divides the grid points into internal grid points and external grid points. The area S of the irregular pattern formed by the oil stains is calculated based on the number of internal grid points and external grid points.

[0056] In step S23, the calculation formula for the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is:

[0057]

[0058] Wherein, N is the number of internal grid points contained in the irregular figure, L is the number of grid points on the boundary of the irregular figure, and k is the conversion coefficient.

[0059] Step S4 further comprises the following steps:

[0060] Step S41: The degraded insulator has a difference in temperature distribution from the good insulator;

[0061] Step S42: When the insulator deteriorates, its internal structure becomes unstable, and the distributed voltage of the insulator string will jump, resulting in different heat distribution on the insulator;

[0062] Step S43: Thermal imaging images the insulator according to the different heat distribution on the insulator, and sends the image to the staff backstage for inspection, thereby avoiding the problem that the internal defects of the insulator are difficult to identify by human eyes;

[0063] Step S44: In the sent back thermal imaging image of the insulator, the larger the area s of the darker color portion is, the higher the degree of damage B of the insulator is.

[0064] In step S24, the calculation formula of the proportion q of the oil stain area S to the oilcloth is:

[0065]

[0066] Among them, S is the oil stain area, n is the oil cloth area, when 0≤q≤10%, it is normal leakage and no reminder is needed; when q>10%, the oil leakage is large and shows an upward trend. The transformer may be faulty and a maintenance reminder needs to be issued to the staff.

[0067] In step S44, the calculation formula of the damage degree B of the insulator is:

[0068] B=s*η

[0069] Among them, η is the conversion coefficient between area and degree of damage. The larger B is, the higher the degree of damage of the insulator is. The staff can judge whether the insulator needs to be replaced based on the value of the degree of damage B.

[0070] Example 1: The data monitored for the first time are as follows: the number of grid points L on the boundary of the irregular pattern formed by the oil stain is 8 and the number of internal grid points N is 6, the conversion coefficient k is 1, according to the formula So: S = 9cm 2 , n = 100 cm 2 , according to the formula It can be obtained that: q = 9%, which is normal leakage and there is no need to remind the staff to carry out maintenance. At the same time, the thermal imaging module sends the imaging picture of the insulator to the background, and the staff performs three-dimensional simulation to determine whether it is necessary to send inspection personnel to repair the underground substation.

[0071] Example 2: The data from the second monitoring are as follows: the number of grid points on the boundary of the irregular pattern formed by the oil stain is L=12 and the number of internal grid points is N=8, the conversion coefficient k=1, according to the formula So: S = 13cm 2 , n = 100 cm 2 , according to the formula It can be obtained that: q = 13%. At this time, it is an abnormal leakage and the staff needs to be reminded to carry out maintenance. At the same time, the thermal imaging module sends the imaging picture of the insulator to the background, and the staff performs three-dimensional simulation to determine whether it is necessary to send inspection personnel to repair the underground substation.

[0072] Example 3: The data from the third monitoring are as follows: the number of grid points L on the boundary of the irregular pattern formed by the oil stain is 14 and the number of internal grid points N is 4, the conversion coefficient k is 1, according to the formula It can be obtained that: S = 10cm2, n = 100cm2, according to the formula It can be obtained that: q = 10%, which is normal leakage and there is no need to remind the staff to carry out maintenance. At the same time, the thermal imaging module sends the imaging picture of the insulator to the background, and the staff performs three-dimensional simulation to determine whether it is necessary to send inspection personnel to repair the underground substation.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The substation 3D modeling system includes equipment input module, fault monitoring module and fault analysis module, which is characterized by: The equipment input module is electrically connected to the fault monitoring module, which is electrically connected to the fault analysis module. The equipment input module is used to input the equipment information parameters of the substation into the system. The fault monitoring module is used to monitor the operating status of each electrical equipment in the substation in real time. The fault analysis module is used to determine the cause of the fault based on the monitored data. The fault monitoring module includes a high-definition camera module, a light capture and recording module, a thermal imaging module, and a data upload module. The high-definition camera module, the light capture and recording module are electrically connected to the thermal imaging module. The high-definition camera module is used to take pictures of the substation. The light capture and recording module is used to take pictures after detecting the occurrence of an arc. The thermal imaging module is used to perform thermal imaging of insulators in the substation to monitor the safety status of the insulators. The data upload module is used to upload the monitored data to the staff backend; The equipment input module includes an electrical parameter input module and a three-dimensional model input module. The electrical parameter input module is electrically connected to the three-dimensional model input module. The electrical parameter input module is used to input the normal working indicators of the key electrical equipment in the substation into the system. The three-dimensional model input module is used to input the three-dimensional model files of the electrical equipment in the substation into the system. The fault analysis module includes a model restoration module, a simulation operation module, and a fault determination module. The model restoration module is electrically connected to the simulation operation module, and the simulation operation module is electrically connected to the fault determination module. The model restoration module is used to restore and splice the input three-dimensional model of the electrical equipment in the substation, the simulation operation module is used to simulate the restored three-dimensional model of the substation, and the fault determination module is used to determine the cause of the fault according to the results of the simulation operation; The operation method of the substation three-dimensional modeling system comprises the following steps: Step S1: Before the underground substation starts to be assembled, the equipment input module enters the relevant equipment information into the system; Step S2: A high-definition camera module is placed inside the substation to perform real-time detection on the transformer located on the bottom plane. When insulating oil seeps out from the vicinity of the transformer and flows to the bottom plane, stains will be formed on the bottom plane. The high-definition camera module can take photos of the stains formed by the insulating oil flowing into the bottom plane, and analyze the oil leakage of the transformer based on the area of ​​the stains photographed, and then analyze the operation of the transformer to determine whether to remind the inspection personnel to perform maintenance; Step S3: The light-capturing and recording module is placed inside the substation, and can monitor the connection nodes of the electrical equipment in the substation in real time. When an arc appears between the devices and emits light, the light-capturing and recording module sends an electrical signal to the high-definition camera module to start shooting the location of the arc, and upload the picture of the location where the arc appears to the background; Step S4: The thermal imaging module performs thermal imaging on the insulator to be monitored, and determines whether the insulator is deteriorated according to the color distribution of the imaging; Step S5: Based on the data sent back, the staff uses the model restoration module to compose a three-dimensional model of the substation with the input electrical equipment, and performs simulation operation based on the status of each monitored electrical equipment, analyzes and determines the consequences of the failure, and decides whether to carry out maintenance work; The step S2 further comprises the following steps: Step S21: The bottom plane below the transformer is a special material tarpaulin that can absorb the insulation oil leaking from the transformer and leave traces. There are n 1cm2 traces distributed on the surface of the tarpaulin. 2 A square grid; Step S22: After the insulating oil in the transformer seeps out, it flows to the bottom plane to form irregularly shaped oil stains; Step S23: calculating the area S of the irregular figure according to the number of grid points L on the boundary and the number of grid points N inside the irregular figure formed by the oil stain; Step S24: After calculating the oil stain area, the staff determines whether to notify the maintenance personnel to perform maintenance and replace the oil cloth in time according to the proportion q of the oil stain area S to the oil cloth; In step S23, the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is calculated as follows: The area of ​​the small square grid distributed on the surface of the tarpaulin under the transformer is 1cm 2 , the irregular figure formed by the oil stain will divide the grid points into internal grid points and external grid points of the figure, and the area S of the irregular figure formed by the oil stain is calculated according to the number of internal grid points and external grid points; In step S23, the calculation formula for the area S of the irregular pattern formed by the leaked insulating oil on the oilcloth is: Where N is the number of internal grid points contained in the irregular figure, L is the number of grid points on the boundary of the irregular figure, and k is the conversion coefficient; The step S4 further comprises the following steps: Step S41: The degraded insulator has a difference in temperature distribution from the good insulator; Step S42: When the insulator deteriorates, its internal structure becomes unstable, and the distributed voltage of the insulator string will jump, resulting in different heat distribution on the insulator; Step S43: The thermal imaging device images the insulator according to the different heat distributions on the insulator, and sends the image to the staff backstage for inspection; Step S44: In the sent back thermal imaging image of the insulator, the larger the area s of the darker color portion is, the higher the degree of damage B of the insulator is; In step S24, the calculation formula of the proportion q of the oil stain area S to the oilcloth is: Among them, S is the area of ​​oil stains, n is the area of ​​oil cloth, when 0≤q≤10%, it is normal leakage and no reminder is needed; when q>10%, the oil leakage is large and shows an upward trend, the transformer fails, and a maintenance reminder needs to be issued to the staff; In step S44, the calculation formula of the damage degree B of the insulator is: B=s*η Among them, η is the conversion coefficient between area and degree of damage. The larger B is, the higher the degree of damage of the insulator is. The staff can judge whether the insulator needs to be replaced based on the value of the degree of damage B.

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