CN116073514A - Abnormal linkage control method for power and environment monitoring of transformer substation - Google Patents
Abnormal linkage control method for power and environment monitoring of transformer substation Download PDFInfo
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- CN116073514A CN116073514A CN202211702481.1A CN202211702481A CN116073514A CN 116073514 A CN116073514 A CN 116073514A CN 202211702481 A CN202211702481 A CN 202211702481A CN 116073514 A CN116073514 A CN 116073514A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
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Abstract
The abnormal linkage control method for the power and environment monitoring of the transformer substation comprises a monitoring platform, and further comprises a power environment monitoring system, an abnormal monitoring system, a fire alarm and fire protection system, an auxiliary equipment control system, a linkage configuration system and an expandable function system; the system is connected to the monitoring platform through the IP communication network, the power environment monitoring system supports the functions of collecting and processing environment data and automatically alarming out of standard environment parameters, and can realize the inquiry of historical information of environment monitoring data, state monitoring data and remote control data and the inquiry of operation logs of staff; the abnormal monitoring system comprises insulator detection, disconnecting link refusal or misoperation detection, line icing abnormal detection, transformer oil leakage abnormal detection and electric power iron tower inclination detection; the fire alarm and fire protection system supports real-time monitoring of fire states; the smoke sensing lock and the automatic power-off of fire disaster are supported.
Description
Technical Field
The invention relates to the field of substation monitoring, in particular to a coordinated control method for abnormal power and environment monitoring of a substation.
Background
With the rapid development of computer technology and network communication technology, the development of automatic construction of a power system is perfected, and especially in the aspect of security protection of a transformer substation, the latest technologies such as computer technology, communication technology, image processing and the like are widely adopted, and technologies such as a video monitoring system, an intrusion alarm system, an SF6 gas detection system, a fire protection system and the like are implemented.
The traditional intelligent security protection system of the transformer substation is affected by traditional concepts and technologies, all subsystems are isolated and cannot realize linkage of the system, the system is low in security due to manual monitoring, the burden and working pressure of central management staff are increased, investment of a power supply company is greatly improved, so that the island phenomenon of monitoring is generated, practicality, stability and security of the system are intangibly reduced, investment cost is increased, meanwhile, monitoring on the transformer substation is wide, fine monitoring cannot be performed, and the intelligent security protection system is unfavorable for use.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a coordinated control method for abnormal power and environment monitoring of a transformer substation, which effectively solves the problems in the technical background.
In order to achieve the above purpose, the present invention provides the following technical solutions: the system comprises a monitoring platform, a power environment monitoring system, an abnormality monitoring system, a fire alarm and fire protection system, an auxiliary equipment control system, a linkage configuration system and an expandable function system; the system is connected to the monitoring platform through the IP communication network, the power environment monitoring system supports the functions of collecting and processing environment data and automatically alarming out of standard environment parameters, and can realize the inquiry of historical information of environment monitoring data, state monitoring data and remote control data and the inquiry of operation logs of staff;
the abnormal monitoring system comprises insulator detection, disconnecting link refusal or misoperation detection, line icing abnormal detection, transformer oil leakage abnormal detection and electric power iron tower inclination detection;
the fire alarm and fire protection system supports real-time monitoring of fire states; the smoke-sensing locking and the automatic power-off of fire disaster are supported;
the auxiliary equipment control system supports the control function of auxiliary equipment;
the linkage configuration system supports linkage of the fire protection system, the anomaly monitoring system and the access control system; the linkage of the access control system and the abnormal monitoring system is supported; the support security alarm system is linked with the abnormality monitoring system and the auxiliary equipment control system; the power environment monitoring system is supported to be linked with the auxiliary equipment control system; supporting the linkage of the comprehensive monitoring system and the substation automation system;
the extensible function system supports reserved software and hardware interfaces, and can increase system functions and equipment at any time.
According to the technical scheme: the input end of the power environment monitoring system is connected with the data output ends of the temperature sensor, the humidity sensor, the open fire detector, the smoke detector and the water level sensor;
the input end of the abnormality monitoring system is connected with the video output end of the camera;
the input end of the fire alarm and fire protection system is connected with the data output ends of the open fire detector and the smoke detector, and the output end of the fire alarm and fire protection system is connected with the fire protection host;
the linkage configuration system is respectively connected with the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire protection system and the auxiliary equipment control system; the expandable function system is connected with the monitoring platform through a hardware module.
According to the technical scheme: the detection of the insulator detection comprises insulator pollution detection and insulator crack detection.
According to the technical scheme: the detection method for the disconnecting link refusal or misoperation comprises the following steps: the detection of the refusal or false action of the knife switch is completed by preprocessing an image of the knife switch and horizontally projecting the image, according to the characteristic of the position of the peak value of the projected statistical graph, the detection process of the refusal or false action of the knife switch is that firstly, the image is subjected to image graying, image binarization segmentation and image smoothing denoising to complete the image preprocessing, and the projection of the image of the knife switch after the knife switch preprocessing in the horizontal direction has a peak, the knife switch is in an inverted mountain shape when the peak is positioned at the upper half, and the knife switch is in a mountain shape when the peak is positioned at the lower half. Therefore, the position of the current disconnecting link can be judged through the difference of the positions of the peaks, and the state of the disconnecting link is judged, so that whether the disconnecting link is in a refusal state or an misoperation abnormality is detected.
According to the technical scheme: the method for detecting the ice coating abnormality of the circuit comprises the following steps: the method comprises the steps of firstly carrying out graying on a line icing image, then carrying out histogram equalization pretreatment, further carrying out binarization, wherein a threshold value in the binarization process can be obtained by counting a large number of samples, also can be obtained by adopting a self-adaptive threshold value selection method, and after binarization, the pixel value of a part with icing is 1, and the pixel value of the other part is 0, so that whether the icing abnormality exists can be detected.
According to the technical scheme: the transformer oil leakage anomaly detection method comprises the following steps: preprocessing the acquired transformer image, and detecting the condition of the transformer image by making difference with the image acquired under normal conditions in a standard image library, wherein the gray values of the difference images under normal conditions are all equal to 0 or close to 0, otherwise, abnormal oil leakage occurs.
According to the technical scheme: the electric power iron tower inclination detection method comprises the following steps: the geometric feature coordinate variation of the centroid in the horizontal direction of the iron tower is calculated to judge, the centroid can be obtained by edge extraction, and the weighted average of the edge distribution in the x-axis direction obtained after a Canny operator is commonly used. The inclination of the iron tower is generally the inclination of the whole iron tower, so that the upper half part of the iron tower is larger than the bottom, and the corresponding centroid variation is also larger, so that the centroid variation of the upper half part can be calculated only in the detection process.
According to the technical scheme: the first step is as follows: the fire alarm and fire protection system is linked with the anomaly monitoring system: displaying a real-time image of the alarm point on a monitoring platform according to alarm information monitored by a fire alarm and fire protection system;
step two: and the abnormality monitoring system and the auxiliary equipment control system are linked: the abnormality monitoring system performs removing and preventing according to the abnormality signals, and the abnormality monitoring system automatically starts auxiliary equipment in the corresponding area and is connected with the abnormality monitoring system in parallel to record video;
step three: and the power environment monitoring system and the auxiliary equipment control system are linked: according to the alarm information of the power environment monitoring system, performing remote operation on corresponding auxiliary equipment;
step four: the anomaly monitoring system is linked with the substation automation system: starting an abnormality monitoring system according to an operation signal and an alarm signal of the substation automation system;
according to the linkage control method of the first to fourth steps, the system integrally displays and controls the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire control system and the auxiliary equipment control system on the main interface of the monitoring platform, and the comprehensive monitoring system provides two monitoring modes of electronic map monitoring and chart monitoring.
The beneficial effects are that: the invention has ingenious conception, can monitor abnormal letters of all parts of the transformer substation in more detail, can timely discover and transmit out the abnormal letters to perform timely linkage control, and is beneficial to the use of the transformer substation.
Detailed Description
The following describes the embodiments of the present invention in further detail.
The first embodiment of the invention provides a power and environment monitoring abnormal linkage control method of a transformer substation, which comprises a monitoring platform, a power environment monitoring system, an abnormal monitoring system, a fire alarm and fire protection system, an auxiliary equipment control system, a linkage configuration system and an expandable function system; the system is connected to the monitoring platform through the IP communication network, the power environment monitoring system supports the functions of collecting and processing environment data and automatically alarming out of standard environment parameters, and can realize the inquiry of historical information of environment monitoring data, state monitoring data and remote control data and the inquiry of operation logs of staff;
the abnormal monitoring system comprises insulator detection, disconnecting link refusal or misoperation detection, line icing abnormal detection, transformer oil leakage abnormal detection and electric power iron tower inclination detection;
the fire alarm and fire protection system supports real-time monitoring of fire states; the smoke-sensing locking and the automatic power-off of fire disaster are supported;
the auxiliary equipment control system supports the control function of auxiliary equipment;
the linkage configuration system supports linkage of the fire protection system, the anomaly monitoring system and the access control system; the linkage of the access control system and the abnormal monitoring system is supported; the support security alarm system is linked with the abnormality monitoring system and the auxiliary equipment control system; the power environment monitoring system is supported to be linked with the auxiliary equipment control system; supporting the linkage of the comprehensive monitoring system and the substation automation system;
the extensible function system supports reserved software and hardware interfaces, and can increase system functions and equipment at any time.
The input end of the power environment monitoring system is connected with the data output ends of the temperature sensor, the humidity sensor, the open fire detector, the smoke detector and the water level sensor;
the input end of the abnormality monitoring system is connected with the video output end of the camera;
the input end of the fire alarm and fire protection system is connected with the data output ends of the open fire detector and the smoke detector, and the output end of the fire alarm and fire protection system is connected with the fire protection host;
the linkage configuration system is respectively connected with the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire protection system and the auxiliary equipment control system; the expandable function system is connected with the monitoring platform through a hardware module.
The detection of the insulator detection comprises insulator pollution detection and insulator crack detection;
the insulator pollution detection comprises insulator whole pollution detection and insulator local pollution detection, wherein the insulator whole pollution detection method comprises the following steps: the characteristic visually represented by the overall contamination of the insulator is that the color of the whole insulator is changed but is relatively uniform, the R, G, B values of the pixel points in the digital image are not greatly different, but are greatly different from those of the normal insulator, and when r=g=b=1, the color is white, so the R, G, B values of the white porcelain insulators are close to 1 under the normal condition. If the R, G, B value calculated for the current insulator image is large or is not large but far from 1, the white insulator can be judged to be polluted;
the local pollution detection method of the insulator comprises the following steps: the characteristic of visual representation of local pollution through the insulator is that the polluted part and the uncontaminated part have color mutation, so the step of detecting the local pollution of the insulator is to sample and calculate the insulator first, and judge whether the insulator has foreign matters or not by analyzing whether the values of R, G, B components of sampling points have mutation or not;
the insulator crack detection method comprises the following steps: the insulator crack detection is to detect a straight line by performing Hough transformation on the preprocessed insulator image, and if the straight line is detected, the existence of the crack is considered.
The detection method for the disconnecting link refusal or misoperation comprises the following steps: the detection of the refusal or false action of the knife switch is completed by preprocessing an image of the knife switch and horizontally projecting the image, according to the characteristic of the position of the peak value of the projected statistical graph, the detection process of the refusal or false action of the knife switch is that firstly, the image is subjected to image graying, image binarization segmentation and image smoothing denoising to complete the image preprocessing, and the projection of the image of the knife switch after the knife switch preprocessing in the horizontal direction has a peak, the knife switch is in an inverted mountain shape when the peak is positioned at the upper half, and the knife switch is in a mountain shape when the peak is positioned at the lower half. Therefore, the position of the current disconnecting link can be judged through the difference of the positions of the peaks, and the state of the disconnecting link is judged, so that whether the disconnecting link is in a refusal state or an misoperation abnormality is detected.
The method for detecting the ice coating abnormality of the circuit comprises the following steps: the method comprises the steps of firstly carrying out graying on a line icing image, then carrying out histogram equalization pretreatment, further carrying out binarization, wherein a threshold value in the binarization process can be obtained by counting a large number of samples, also can be obtained by adopting a self-adaptive threshold value selection method, and after binarization, the pixel value of a part with icing is 1, and the pixel value of the other part is 0, so that whether the icing abnormality exists can be detected.
The transformer oil leakage anomaly detection method comprises the following steps: preprocessing the acquired transformer image, and detecting the condition of the transformer image by making difference with the image acquired under normal conditions in a standard image library, wherein the gray values of the difference images under normal conditions are all equal to 0 or close to 0, otherwise, abnormal oil leakage occurs.
The electric power iron tower inclination detection method comprises the following steps: the geometric feature coordinate variation of the centroid in the horizontal direction of the iron tower is calculated to judge, the centroid can be obtained by edge extraction, and the weighted average of the edge distribution in the x-axis direction obtained after a Canny operator is commonly used. The inclination of the iron tower is generally the inclination of the whole iron tower, so that the upper half part of the iron tower is larger than the bottom, and the corresponding centroid variation is also larger, so that the centroid variation of the upper half part can be calculated only in the detection process.
The first step is as follows: the fire alarm and fire protection system is linked with the anomaly monitoring system: displaying a real-time image of the alarm point on a monitoring platform according to alarm information monitored by a fire alarm and fire protection system;
step two: and the abnormality monitoring system and the auxiliary equipment control system are linked: the abnormality monitoring system performs removing and preventing according to the abnormality signals, and the abnormality monitoring system automatically starts auxiliary equipment in the corresponding area and is connected with the abnormality monitoring system in parallel to record video;
step three: and the power environment monitoring system and the auxiliary equipment control system are linked: according to the alarm information of the power environment monitoring system, performing remote operation on corresponding auxiliary equipment;
step four: the anomaly monitoring system is linked with the substation automation system: starting an abnormality monitoring system according to an operation signal and an alarm signal of the substation automation system;
according to the linkage control method of the first to fourth steps, the system integrally displays and controls the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire control system and the auxiliary equipment control system on the main interface of the monitoring platform, and the comprehensive monitoring system provides two monitoring modes of electronic map monitoring and chart monitoring.
The detection method of the leakage oil of the power transformer comprises the following steps: (1) Graying the sample image and the monitoring image respectively and obtaining a difference image;
(2) Detecting an abnormal region by using an OTSU image segmentation method and removing small particle noise by using morphological open operation;
(3) Converting the sample image and the monitoring image into HSV space, and making H-S color histograms of the detected abnormal areas;
(4) Judging that the number of pixels belonging to the 5 th to 12 th groups of the gray brown part in the H-S color histogram is changed back and forth, and when the difference value of the data of the groups of the monitoring image and the sample image reaches a certain value 80, judging that the abnormal region has abnormal oil leakage.
Working principle: when the invention is used, the abnormality monitoring system comprises insulator detection, disconnecting link refusal or misoperation detection, line icing abnormality detection, transformer oil leakage abnormality detection and electric power iron tower inclination detection, wherein the insulator pollution detection comprises insulator integral pollution detection and insulator local pollution detection, and the insulator integral pollution detection method comprises the following steps: the characteristic visually represented by the overall contamination of the insulator is that the color of the whole insulator is changed but is relatively uniform, the R, G, B values of the pixel points in the digital image are not greatly different, but are greatly different from those of the normal insulator, and when r=g=b=1, the color is white, so the R, G, B values of the white porcelain insulators are close to 1 under the normal condition. If the R, G, B value calculated for the current insulator image is large or is not large but far from 1, the white insulator can be judged to be polluted;
the local pollution detection method of the insulator comprises the following steps: the characteristic of visual representation of local pollution through the insulator is that the polluted part and the uncontaminated part have color mutation, so the step of detecting the local pollution of the insulator is to sample and calculate the insulator first, and judge whether the insulator has foreign matters or not by analyzing whether the values of R, G, B components of sampling points have mutation or not;
the insulator crack detection method comprises the following steps: the insulator crack detection is to detect a straight line by performing Hough transformation on the preprocessed insulator image, and if the straight line is detected, the existence of the crack is considered.
The detection method for the disconnecting link refusal or misoperation comprises the following steps: the detection of the refusal or false action of the knife switch is completed by preprocessing an image of the knife switch and horizontally projecting the image, according to the characteristic of the position of the peak value of the projected statistical graph, the detection process of the refusal or false action of the knife switch is that firstly, the image is subjected to image graying, image binarization segmentation and image smoothing denoising to complete the image preprocessing, and the projection of the image of the knife switch after the knife switch preprocessing in the horizontal direction has a peak, the knife switch is in an inverted mountain shape when the peak is positioned at the upper half, and the knife switch is in a mountain shape when the peak is positioned at the lower half. Therefore, the position of the current disconnecting link can be judged through the difference of the positions of the peaks, and the state of the disconnecting link is judged, so that whether the disconnecting link is in a refusal state or an misoperation abnormality is detected.
The method for detecting the ice coating abnormality of the circuit comprises the following steps: the method comprises the steps of firstly carrying out graying on a line icing image, then carrying out histogram equalization pretreatment, further carrying out binarization, wherein a threshold value in the binarization process can be obtained by counting a large number of samples, also can be obtained by adopting a self-adaptive threshold value selection method, and after binarization, the pixel value of a part with icing is 1, and the pixel value of the other part is 0, so that whether the icing abnormality exists can be detected.
The transformer oil leakage anomaly detection method comprises the following steps: preprocessing the acquired transformer image, and detecting the condition of the transformer image by making difference with the image acquired under normal conditions in a standard image library, wherein the gray values of the difference images under normal conditions are all equal to 0 or close to 0, otherwise, abnormal oil leakage occurs.
The electric power iron tower inclination detection method comprises the following steps: the geometric feature coordinate variation of the centroid in the horizontal direction of the iron tower is calculated to judge, the centroid can be obtained by edge extraction, and the weighted average of the edge distribution in the x-axis direction obtained after a Canny operator is commonly used. The inclination of the iron tower is generally the inclination of the whole iron tower, so that the upper half part of the iron tower is larger than the bottom, and the corresponding centroid variation is also larger, so that the centroid variation of the upper half part can be calculated only in the detection process.
The beneficial effects are that: the invention has ingenious conception, can monitor abnormal letters of all parts of the transformer substation in more detail, can timely discover and transmit out the abnormal letters to perform timely linkage control, and is beneficial to the use of the transformer substation.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a power of transformer substation and unusual coordinated control method of environmental monitoring, includes monitor platform, its characterized in that: the system also comprises a power environment monitoring system, an abnormality monitoring system, a fire alarm and fire protection system, an auxiliary equipment control system, a linkage configuration system and an expandable function system; the system is connected to the monitoring platform through the IP communication network, the power environment monitoring system supports the functions of collecting and processing environment data and automatically alarming out of standard environment parameters, and can realize the inquiry of historical information of environment monitoring data, state monitoring data and remote control data and the inquiry of operation logs of staff;
the abnormal monitoring system comprises insulator detection, disconnecting link refusal or misoperation detection, line icing abnormal detection, transformer oil leakage abnormal detection and electric power iron tower inclination detection;
the fire alarm and fire protection system supports real-time monitoring of fire states; the smoke-sensing locking and the automatic power-off of fire disaster are supported;
the auxiliary equipment control system supports the control function of auxiliary equipment;
the linkage configuration system supports linkage of the fire protection system, the anomaly monitoring system and the access control system; the linkage of the access control system and the abnormal monitoring system is supported; the support security alarm system is linked with the abnormality monitoring system and the auxiliary equipment control system; the power environment monitoring system is supported to be linked with the auxiliary equipment control system; supporting the linkage of the comprehensive monitoring system and the substation automation system;
the extensible function system supports reserved software and hardware interfaces, and can increase system functions and equipment at any time.
2. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the input end of the power environment monitoring system is connected with the data output ends of a temperature sensor, a humidity sensor, an open fire detector, a smoke detector and a water level sensor;
the input end of the abnormality monitoring system is connected with the video output end of the camera;
the input end of the fire alarm and fire protection system is connected with the data output ends of the open fire detector and the smoke detector, and the output end of the fire alarm and fire protection system is connected with the fire protection host;
the linkage configuration system is respectively connected with the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire protection system and the auxiliary equipment control system; the expandable function system is connected with the monitoring platform through a hardware module.
3. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the detection of the insulator detection comprises insulator pollution detection and insulator crack detection.
4. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the method for detecting the refusal or misoperation of the disconnecting link is as follows: the detection of the refusal or false action of the knife switch is finished by preprocessing and horizontally projecting the image of the knife switch, and according to the characteristic of the position of the peak value of the projected statistical graph, the detection process of the refusal or false action of the knife switch is that firstly, the image is subjected to image graying, image binarization segmentation and image smoothing denoising, and the image preprocessing is finished.
5. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the method for detecting abnormal ice coating of the circuit is as follows: the method comprises the steps of firstly carrying out graying on a line icing image, then carrying out histogram equalization pretreatment, further carrying out binarization, wherein a threshold value in the binarization process can be obtained by counting a large number of samples, also can be obtained by adopting a self-adaptive threshold value selection method, and after binarization, the pixel value of a part with icing is 1, and the pixel value of the other part is 0, so that whether the icing abnormality exists can be detected.
6. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the method for detecting abnormal oil leakage of the transformer is characterized by comprising the following steps: preprocessing the acquired transformer image, and detecting the condition of the transformer image by making difference with the image acquired under normal conditions in a standard image library, wherein the gray values of the difference images under normal conditions are all equal to 0 or close to 0, otherwise, abnormal oil leakage occurs.
7. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the method for detecting the inclination of the electric power iron tower is as follows: the geometric feature of the centroid in the horizontal direction of the iron tower is usually calculated to judge the geometric feature, the centroid can be obtained by utilizing edge extraction, the weighted average of the edge distribution in the x-axis direction obtained after a Canny operator is commonly used, the inclination of the iron tower is generally the inclination of the whole iron tower, the upper half part of the iron tower is larger than the bottom, the corresponding centroid variation is larger, and only the centroid variation of the upper half part can be calculated in the detection process.
8. The method for controlling abnormal linkage of power and environment monitoring of a transformer substation according to claim 1, wherein the first step is as follows: the fire alarm and fire protection system is linked with the anomaly monitoring system: displaying a real-time image of the alarm point on a monitoring platform according to alarm information monitored by a fire alarm and fire protection system;
step two: and the abnormality monitoring system and the auxiliary equipment control system are linked: the abnormality monitoring system performs removing and preventing according to the abnormality signals, and the abnormality monitoring system automatically starts auxiliary equipment in the corresponding area and is connected with the abnormality monitoring system in parallel to record video;
step three: and the power environment monitoring system and the auxiliary equipment control system are linked: according to the alarm information of the power environment monitoring system, performing remote operation on corresponding auxiliary equipment;
step four: the anomaly monitoring system is linked with the substation automation system: starting an abnormality monitoring system according to an operation signal and an alarm signal of the substation automation system;
according to the linkage control method of the first to fourth steps, the system integrally displays and controls the power environment monitoring system, the abnormality monitoring system, the fire alarm and fire control system and the auxiliary equipment control system on the main interface of the monitoring platform, and the comprehensive monitoring system provides two monitoring modes of electronic map monitoring and chart monitoring.
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| CN117093904A (en) * | 2023-10-19 | 2023-11-21 | 合肥工业大学 | Transformer substation fire detection data acquisition method |
| CN117093904B (en) * | 2023-10-19 | 2024-03-12 | 合肥工业大学 | Transformer substation fire detection data acquisition method |
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