CN116643206A - High-voltage leakage monitoring and fault positioning system for coal mine full-power network - Google Patents

High-voltage leakage monitoring and fault positioning system for coal mine full-power network Download PDF

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CN116643206A
CN116643206A CN202310931685.0A CN202310931685A CN116643206A CN 116643206 A CN116643206 A CN 116643206A CN 202310931685 A CN202310931685 A CN 202310931685A CN 116643206 A CN116643206 A CN 116643206A
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fault
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coal mine
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王念彬
卢其威
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Beijing Tianyang Ruibo Technology Co ltd
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Beijing Tianyang Ruibo Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52Testing for short-circuits, leakage current or ground faults
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
    • G01N33/0063General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/40Scenes; Scene-specific elements in video content
    • G06V20/41Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/50Context or environment of the image
    • G06V20/52Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

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Abstract

The invention discloses a coal mine full-power-grid high-voltage leakage monitoring and fault positioning system, which relates to the technical field of power monitoring and provides a scheme that the system comprises a coal mine full-power-grid high-voltage leakage monitoring system and a coal mine full-power-grid high-voltage leakage fault positioning system, wherein the coal mine full-power-grid high-voltage leakage monitoring system comprises an image acquisition unit, an image analysis unit, a gas acquisition unit, a gas analysis unit and a data transmission unit; the image acquisition unit is used for carrying out real-time monitoring and video image acquisition processing on all power grids of the coal mine area. The invention can not only monitor and process the line in the mine area in real time, but also effectively and rapidly reduce the investigation range when the line has leakage fault, and accurately locate the fault point of the leakage, thereby improving the effect and efficiency of monitoring the high-voltage leakage of the full power grid of the coal mine and locating the fault, improving the maintenance and replacement efficiency of maintenance personnel and avoiding the influence of the full power grid on the work of other normal lines.

Description

High-voltage leakage monitoring and fault positioning system for coal mine full-power network
Technical Field
The invention relates to the technical field of power monitoring, in particular to a high-voltage leakage monitoring and fault positioning system for a coal mine full-power network.
Background
Coal mine refers to a place rich in coal resources, which is generally divided into an underground coal mine and an open pit coal mine, when a coal seam is far from the ground surface, coal is generally selected to be excavated into an underground excavation roadway, the underground coal mine is generally selected to be excavated into a coal directly from an earth surface soil layer when the coal seam is very close to the ground surface, the open pit coal mine is mainly solid fuel, the coal is one of combustible organic rocks, the coal is divided into peat, lignite, bituminous coal and anthracite according to different degrees of coalification, a coal mine power supply system adopts a mode of 110 (35) kV/10 (6) kV to supply power to a ground substation, a coal preparation plant and underground power transformers, the neutral point of the ground 10 (6) kV power substation is mostly in a grounding mode through arc suppression coils, and works in an overcompensation state, WAMS is a wide area measurement technology, each device synchronously samples the zero sequence voltage and zero sequence current of the substation, all the substations realize real-time synchronous sampling of the zero sequence voltage and zero sequence current of all the substation devices through time correction, each data is marked with a time tag to ensure real-time synchronization of the data, when the high-voltage leakage protection of the high-voltage power grid has inaccurate line selection and serious false tripping, the underground large-area power failure of the coal mine is often caused due to the leakage problem, the normal production of the coal mine is influenced, the safety and the personal safety of the coal mine are seriously threatened, when the whole power grid of the coal mine breaks down, the electric power maintenance personnel is required to conduct line-by-line investigation and analysis, the efficiency is lower, meanwhile, the whole line is required to be subjected to power-off treatment when the maintenance is carried out, if the power-off treatment is not carried out on a single line which is required to be maintained and replaced, the normal use of other equipment is influenced, the utility model provides a colliery full power network high voltage electric leakage control and fault location system.
Disclosure of Invention
The invention provides a coal mine full-power-grid high-voltage leakage monitoring and fault positioning system, which aims to solve the defects in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the coal mine full-power-grid high-voltage leakage monitoring and fault positioning system comprises a coal mine full-power-grid high-voltage leakage monitoring system and a coal mine full-power-grid high-voltage leakage fault positioning system, wherein the coal mine full-power-grid high-voltage leakage monitoring system comprises an image acquisition unit, an image analysis unit, a gas acquisition unit, a gas analysis unit and a data transmission unit;
the image acquisition unit is used for carrying out real-time monitoring and video image acquisition processing on all power grids of the coal mine area, carrying out real-time monitoring and video acquisition on all cable appearance conditions and mine area environments in the coal mine area through the image acquisition unit, and sending acquired video image data information to the image analysis unit;
the image analysis unit is used for analyzing and judging whether the situation of the damage of the surface of the cable of the power grid and the softening of the surface of the cable exists or not according to the video image data information sent by the image acquisition unit, the situation of the intact condition of the whole cable of the coal mine area can be effectively monitored by analyzing the damage and the softening of the surface of the cable of the power grid, when the situation of the damage or the softening of the surface of the cable is monitored and analyzed, the situation that the temperature of the cable is increased due to the existence of electric leakage or the overlarge current, the occurrence of the softening of the cable is caused, and the analyzed and judged data information is sent to the data transmission unit;
the gas acquisition unit is used for carrying out real-time monitoring and acquisition processing on the gas generated by the coal mine area when all the power grids work, carrying out real-time monitoring on the gas generated by the coal mine area, capturing and acquiring abnormal gas, and sending the acquired gas data information to the gas analysis unit;
the gas analysis unit is used for carrying out lean degree analysis processing on the smell of the abnormal gas captured by the gas acquisition unit, sending the analyzed data information to the data transmission unit, carrying out whether burning exists or not when the concentration of the collected abnormal gas smell is compared, carrying out whether fire burning exists or not through the analysis of burning smell, and simultaneously analyzing whether burning possibility caused by electric leakage exists or not through burning smell and carrying out whether abnormal high-temperature baking exists or not through the burning degree of the abnormal gas;
the data transmission unit is used for carrying out data information transmission processing on each piece of analyzed data information through a network.
Further, the coal mine full-power-grid high-voltage leakage fault positioning system comprises a data receiving unit, a data acquisition unit, a data analysis unit, a fault area investigation unit and a fault marking unit;
the data receiving unit is used for carrying out rapid receiving processing on each piece of analysis data information sent by the data transmission unit and sending the received data information to the data acquisition unit;
the data acquisition unit is used for carrying out data acquisition and marking processing on each item of data information sent by the data receiving unit, capturing real-time data information of current and voltage of a line, and sending the marked data information to the data analysis unit;
the data analysis unit is used for carrying out analysis and judgment processing on the normal value of the data information sent by the data acquisition unit, sending the data information with abnormal analysis and judgment to the fault area investigation unit, and rapidly detecting and analyzing the current, and calculating whether the value of the acquired current exceeds the rated current range or not through the data analysis unit, wherein the calculation formula is as follows:wherein the action time t is a function of the input current I, I being the fault current (the larger the value, the shorter the time), I p In order to protect the starting current (set value), r is a constant, the value is usually between 0 and 2 (the value is also larger than 2), k is a constant, and the dimension is time;
when (when)At time t<0, then indicate protection is inactive;
when (when)When (I)>Indicating that the protection is not active;
when (when)At time t>0, indicating that the protection is to act, wherein the larger I is, the smaller the protection action time t is, and sending the detected data information to an overload protection unit;
the fault area investigation unit is used for carrying out regional abnormal condition investigation and analysis processing on the abnormal data sent by the data analysis unit, carrying out regional investigation processing on the whole-network cables of the coal mine area by the fault area investigation unit, reducing the investigation and overhaul time of maintenance personnel, effectively improving the efficiency of locating the high-voltage leakage faults of the whole electric network of the coal mine, and sending the data information of the abnormal area to the fault marking unit and the fault marking unit;
the fault marking unit is used for marking fault marks of the lines in the detected fault areas, and marking and positioning the fault areas, the lines and the fault points through the fault marking unit, so that the rapid maintenance efficiency of maintenance personnel is effectively improved.
Further, the coal mine full-power-grid high-voltage leakage fault positioning system also comprises a fault line checking unit, a fault point checking unit, a fault analysis unit and a single-wire power-off protection unit;
the fault line investigation unit is used for carrying out fault investigation and analysis processing on each line in the area where the abnormality is investigated by the fault area investigation unit, carrying out fault analysis and investigation processing on a plurality of cables line by the fault line investigation unit, effectively shortening the time for searching maintenance personnel, improving the effect of fault positioning and sending the data information of the line where the abnormality is investigated to the fault point investigation unit and the fault marking unit;
the fault point analysis unit is used for detecting, analyzing and processing fault points of the abnormal lines after being checked by the fault line checking unit, detecting single lines with problems by the fault line checking unit, then checking and analyzing the single lines with faults one by the fault point analysis unit, so that the specific positions of the fault points of the lines can be quickly and accurately found, and the analyzed data information is respectively sent to the fault marking unit, the single-line power-off protection unit and the fault analysis unit;
the single-wire power-off protection unit is used for carrying out power-off protection treatment on all equipment on a single line with abnormal data conditions after the accurate position of a fault line is checked by the fault point checking unit, and carrying out power-off on the fault line by the single-wire power-off protection unit, so that the equipment on the fault line is prevented from being damaged due to unstable voltage or current caused by electric leakage, meanwhile, the whole power grid of a coal mine area is not required to be subjected to power-off maintenance, and the influence on the normal power consumption of other equipment in the coal mine area is reduced.
Further, the coal mine full-power-grid high-voltage leakage fault positioning system also comprises a parameter setting unit, a database, a warning reminding unit and a visualization unit;
the parameter setting unit is used for setting and recording normal values of current and voltage of electricity consumption of all areas in the coal mine area, setting parameters of current and voltage required by a specific area, effectively facilitating parameter acquisition of the later-period data analysis unit and the fault area investigation unit, and sending the set normal value parameters to the database;
the database is used for uniformly storing and processing parameter data information of normal electricity consumption values of all areas;
the warning reminding unit is used for carrying out unified warning reminding treatment on corresponding equipment operators when all equipment on a single line is to be powered off through the single-line power-off protection unit, reminding the equipment operators through the warning reminding unit, helping the operators to carry out safety protection, simultaneously facilitating the safety protection of normal shutdown of the operating equipment by the operators, avoiding damage to the operating equipment caused by sudden power off, and sending prompt data information to the visualization unit;
the visual unit is used for visually displaying the fault data information marked by the fault marking unit and visually displaying the warning reminding data information for single-wire power failure.
Further, the output end of the image acquisition unit is connected with the input end of the image analysis unit, the output end of the image analysis unit is connected with the input end of the data transmission unit, the output end of the gas acquisition unit is connected with the input end of the gas analysis unit, the output end of the gas analysis unit is connected with the input end of the data transmission unit, and the output end of the data transmission unit is connected with the input end of the data receiving unit.
Further, the output end of the data receiving unit is connected with the input end of the data collecting unit, the output end of the data collecting unit is connected with the input end of the data analyzing unit, the output end of the data analyzing unit is connected with the input end of the fault area checking unit, the output end of the fault area unit is respectively connected with the input ends of the fault marking unit and the fault line checking unit, and the output end of the fault line checking unit is respectively connected with the input ends of the fault marking unit and the fault point checking unit.
Further, the output end of the parameter setting unit is connected with the input end of the database, the two-way connection is realized between the database and the data analysis unit and the fault area investigation unit, the output end of the fault point investigation unit is respectively connected with the input ends of the fault marking unit, the single-wire power-off protection unit and the fault analysis unit, the output end of the fault analysis unit is connected with the input end of the fault marking unit, the output end of the fault marking unit is connected with the input end of the visualization unit, the output end of the single-wire power-off protection unit is connected with the input end of the warning reminding unit, and the output end of the warning reminding unit is connected with the input end of the visualization unit.
Compared with the prior art, the invention has the beneficial effects that:
the invention carries out analysis judgment processing on whether the situation of cable skin damage and cable skin softening of a power grid exists on video image data information sent by the image acquisition unit through the image analysis unit, the gas analysis unit, the data transmission unit, the data receiving unit, the data acquisition unit, the data analysis unit, the fault area checking unit, the fault marking unit, the fault line checking unit, the fault point checking unit, the fault analysis unit, the single line power-off protection unit, the parameter setting unit, the database, the warning reminding unit and the visualization unit, and the invention can carry out analysis judgment processing on the image on the situation of whether the cable skin damage and the cable skin softening of the power grid exist on the video image data information sent by the image acquisition unit, and gradually reduces the range of the fault area through the fault area checking unit, the fault line checking unit, the fault point checking unit and the fault analysis unit, thereby improving the checking and positioning processing of the fault line, and simultaneously carrying out power-off protection processing on all equipment on a single line with abnormal data condition through the single line power-off protection unit, so that the invention can not only carry out real-time monitoring processing on the line in a coal mine area, but also can effectively and rapidly reduce the checking range and accurately position the fault point when the line has faults, thereby improving the efficiency of electric leakage and the full-voltage monitoring efficiency of the power leakage and the power grid and the maintenance efficiency of the power grid and the normal electric leakage and the maintenance efficiency are improved.
Drawings
Fig. 1 is a block diagram of an overall system for monitoring high-voltage leakage and fault location of a coal mine full-power-grid high-voltage leakage and fault location system.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the present invention will be understood by those skilled in the art in detail, and the present invention will be further described in detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1: the coal mine full-power-grid high-voltage leakage monitoring and fault positioning system comprises a coal mine full-power-grid high-voltage leakage monitoring system and a coal mine full-power-grid high-voltage leakage fault positioning system, wherein the coal mine full-power-grid high-voltage leakage monitoring system comprises an image acquisition unit, an image analysis unit, a gas acquisition unit, a gas analysis unit and a data transmission unit;
the image acquisition unit is used for carrying out real-time monitoring and video image acquisition processing on all power grids of the coal mine area, carrying out real-time monitoring and video acquisition on all cable appearance conditions and mine area environments in the coal mine area through the image acquisition unit, and sending acquired video image data information to the image analysis unit;
the image analysis unit is used for analyzing and judging whether the situation of the damage of the surface of the cable of the power grid and the softening of the surface of the cable exists or not according to the video image data information sent by the image acquisition unit, the situation of the intact condition of the whole cable of the coal mine area can be effectively monitored by analyzing the damage and the softening of the surface of the cable of the power grid, when the situation of the damage or the softening of the surface of the cable is monitored and analyzed, the situation that the temperature of the cable becomes high due to the existence of electric leakage or the overlarge current, the occurrence of the softening of the cable is caused, and the analyzed and judged data information is sent to the data transmission unit;
the gas acquisition unit is used for carrying out real-time monitoring and acquisition processing on the gas generated by the coal mine area when all the power grids work, carrying out real-time monitoring on the gas generated by the coal mine area, capturing and acquiring abnormal gas, and sending the acquired gas data information to the gas analysis unit;
the gas analysis unit is used for carrying out thin degree analysis processing on the smell of the abnormal gas captured by the gas acquisition unit, sending the analyzed data information to the data transmission unit, carrying out the condition of whether burning exists or not when the concentration of the collected abnormal gas smell is compared, carrying out the condition of whether fire burning exists or not through the analysis of burning smell, and simultaneously analyzing whether the burning possibility caused by electric leakage exists or not through burning smell and carrying out the condition of whether abnormal high-temperature baking exists or not through the burning degree of the abnormal gas;
the data transmission unit is used for transmitting the analyzed data information through a network.
The invention discloses a coal mine full-power-grid high-voltage leakage fault positioning system, which comprises a data receiving unit, a data acquisition unit, a data analysis unit, a fault area investigation unit and a fault marking unit;
the data receiving unit is used for carrying out rapid receiving processing on each piece of analysis data information sent by the data transmission unit and sending the received data information to the data acquisition unit;
the data acquisition unit is used for carrying out data acquisition marking processing on each item of data information sent by the data receiving unit, capturing processing on real-time data information of current and voltage of a line, and sending the marked data information to the data analysis unit;
the data analysis unit is used for carrying out analysis and judgment processing on the normal value of the data information sent by the data acquisition unit, sending the data information with abnormal analysis and judgment to the fault area investigation unit, and carrying out rapid detection and analysis on the current magnitude, and calculating whether the acquired current magnitude value exceeds the rated current range or not through the data analysis unit, wherein the calculation formula is as follows:wherein the action time t is a function of the input current I, I being the fault current (the larger the value, the shorter the time), I p In order to protect the starting current (set value), r is a constant, the value is usually between 0 and 2 (the value is also larger than 2), k is a constant, and the dimension is time;
when (when)At time t<0, then indicate protection is inactive;
when (when)When (I)>Indicating that the protection is not active;
when (when)At time t>0, indicating that the protection is to act, wherein the larger I is, the smaller the protection action time t is, and sending the detected data information to an overload protection unit;
the fault area investigation unit is used for carrying out regional abnormal condition investigation and analysis processing on the abnormal data sent by the data analysis unit, carrying out regional investigation and processing on the whole-network cables of the coal mine area by the fault area investigation unit, reducing the investigation and overhaul time of maintenance personnel, effectively improving the efficiency of locating the high-voltage leakage faults of the whole electric network of the coal mine, and sending the data information of the abnormal area to the fault marking unit and the fault marking unit;
the fault marking unit is used for marking fault identification on the line in the detected fault area, and marking and positioning the fault area, the line and the fault point through the fault marking unit, so that the quick maintenance efficiency of maintenance personnel is effectively improved.
In the invention, the coal mine full-power-grid high-voltage leakage fault positioning system also comprises a fault line checking unit, a fault point checking unit, a fault analysis unit and a single-wire power-off protection unit;
the fault line investigation unit is used for carrying out fault investigation and analysis processing on each line in the area where the abnormality is investigated by the fault area investigation unit, carrying out line-by-line fault analysis and investigation processing on a plurality of cables by the fault line investigation unit, effectively shortening the time for the maintenance personnel to find, improving the effect of fault positioning and sending the data information of the line where the abnormality is investigated to the fault point investigation unit and the fault marking unit;
the fault point analysis unit is used for detecting, analyzing and processing the fault points of the abnormal lines after being checked by the fault line checking unit, detecting the single lines with problems by the fault line checking unit, and then checking and analyzing the fault points one by the fault point analysis unit, so that the specific positions of the fault points of the lines can be quickly and accurately found, and the analyzed data information is respectively sent to the fault marking unit, the single-line power-off protection unit and the fault analysis unit;
the single-wire power-off protection unit is used for carrying out power-off protection treatment on all equipment on a single line with abnormal data conditions after the accurate position of a fault line is checked by the fault point checking unit, and carrying out power-off on the fault line by the single-wire power-off protection unit, so that the equipment on the fault line is prevented from being damaged due to unstable voltage or current caused by electric leakage, meanwhile, the whole power grid of a coal mine area is not required to be subjected to power-off maintenance, and the influence on the normal power utilization of other equipment in the coal mine area is reduced.
In the invention, the coal mine full-power-grid high-voltage leakage fault positioning system also comprises a parameter setting unit, a database, a warning reminding unit and a visualization unit;
the parameter setting unit is used for setting and recording normal values of current and voltage of electricity consumption of all the areas in the coal mine area, setting parameters of the current and the voltage required by the specific area, effectively facilitating parameter acquisition of the later-period data analysis unit and the fault area investigation unit, and sending the set normal value parameters to the database;
the database is used for uniformly storing and processing the parameter data information of the electricity utilization normal values of all the areas;
the warning reminding unit is used for carrying out unified warning reminding treatment on corresponding equipment operators when all equipment on a single line is to be powered off through the single-line power-off protection unit, reminding the equipment operators through the warning reminding unit, helping the operators to make safety protection, simultaneously facilitating the safety protection of normal shutdown of the operating equipment by the operators, avoiding damage to the operating equipment caused by sudden power off, and sending prompt data information to the visualization unit;
the visual unit is used for visually displaying the fault data information marked by the fault marking unit and visually displaying the warning reminding data information for single-wire power failure.
In the invention, the output end of the image acquisition unit is connected with the input end of the image analysis unit, the output end of the image analysis unit is connected with the input end of the data transmission unit, the output end of the gas acquisition unit is connected with the input end of the gas analysis unit, the output end of the gas analysis unit is connected with the input end of the data transmission unit, and the output end of the data transmission unit is connected with the input end of the data receiving unit.
In the invention, the output end of the data receiving unit is connected with the input end of the data collecting unit, the output end of the data collecting unit is connected with the input end of the data analyzing unit, the output end of the data analyzing unit is connected with the input end of the fault area checking unit, the output end of the fault area unit is respectively connected with the input ends of the fault marking unit and the fault line checking unit, and the output end of the fault line checking unit is respectively connected with the input ends of the fault marking unit and the fault point checking unit.
In the invention, the output end of the parameter setting unit is connected with the input end of the database, the two-way connection is realized between the database and the data analysis unit and the fault area investigation unit, the output end of the fault point investigation unit is respectively connected with the input ends of the fault marking unit, the single-wire power-off protection unit and the fault analysis unit, the output end of the fault analysis unit is connected with the input end of the fault marking unit, the output end of the fault marking unit is connected with the input end of the visualization unit, the output end of the single-wire power-off protection unit is connected with the input end of the warning reminding unit, and the output end of the warning reminding unit is connected with the input end of the visualization unit.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (7)

1. The coal mine full-power-grid high-voltage leakage monitoring and fault positioning system comprises a coal mine full-power-grid high-voltage leakage monitoring system and a coal mine full-power-grid high-voltage leakage fault positioning system, and is characterized in that;
the coal mine full-power-grid high-voltage leakage monitoring system comprises an image acquisition unit, an image analysis unit, a gas acquisition unit, a gas analysis unit and a data transmission unit;
the image acquisition unit is used for carrying out real-time monitoring and video image acquisition processing on all power grids of the coal mine area and sending acquired video image data information to the image analysis unit;
the image analysis unit is used for carrying out image analysis and judgment processing on whether the situation of cable skin damage and cable skin softening of the power grid exists on the video image data information sent by the image acquisition unit, and sending the analyzed and judged data information to the data transmission unit;
the gas acquisition unit is used for carrying out real-time monitoring and acquisition processing on gas generated when all power grids of the coal mine area work, and sending acquired gas data information to the gas analysis unit;
the gas analysis unit is used for analyzing and processing the smell of the abnormal gas captured by the gas acquisition unit in a rarefaction degree and sending the analyzed data information to the data transmission unit;
the data transmission unit is used for carrying out data information transmission processing on each piece of analyzed data information through a network.
2. The system for monitoring and positioning high-voltage electric leakage of the coal mine full-power network according to claim 1, wherein the system for positioning the high-voltage electric leakage and the fault of the coal mine full-power network comprises a data receiving unit, a data collecting unit, a data analyzing unit, a fault area troubleshooting unit and a fault marking unit;
the data receiving unit is used for carrying out rapid receiving processing on each piece of analysis data information sent by the data transmission unit and sending the received data information to the data acquisition unit;
the data acquisition unit is used for carrying out data acquisition and marking processing on each item of data information sent by the data receiving unit, capturing real-time data information of current and voltage of a line, and sending the marked data information to the data analysis unit;
the data analysis unit is used for carrying out normal numerical analysis and judgment processing on the data information sent by the data acquisition unit and sending the data information with abnormal analysis and judgment to the fault area investigation unit;
the fault region investigation unit is used for carrying out investigation and analysis processing on regional abnormal conditions on the abnormal data sent by the data analysis unit and sending data information of the abnormal region to the fault marking unit and the fault marking unit;
the fault marking unit is used for marking fault identification on the regional line with the detected fault.
3. The system for monitoring and positioning high-voltage electric leakage of the coal mine full-power grid according to claim 2, wherein the system for positioning high-voltage electric leakage and positioning the electric leakage of the coal mine full-power grid further comprises a fault line checking unit, a fault point checking unit, a fault analysis unit and a single-wire power-off protection unit;
the fault line investigation unit is used for carrying out fault investigation analysis processing on each line in the area with the abnormality through the fault area investigation unit, and sending the line data information with the abnormality to the fault point investigation unit and the fault marking unit;
the fault point analysis unit is used for detecting, analyzing and processing the fault points of the abnormal line after being checked by the fault line checking unit, and respectively sending the analyzed data information to the fault marking unit, the single-line power-off protection unit and the fault analysis unit;
the single-wire power-off protection unit is used for performing power-off protection processing on all devices on a single line with abnormal data conditions after the accurate position of the fault line is checked by the fault point checking unit.
4. The system for monitoring and positioning the high-voltage electric leakage of the coal mine full-power network according to claim 3, wherein the system for positioning the high-voltage electric leakage of the coal mine full-power network simultaneously comprises a parameter setting unit, a database, a warning reminding unit and a visualization unit;
the parameter setting unit is used for setting and recording normal values of current and voltage of electricity consumption of all areas in the coal mine area and sending the set normal value parameters to the database;
the database is used for uniformly storing and processing parameter data information of normal electricity consumption values of all areas;
the warning reminding unit is used for carrying out unified warning reminding processing on corresponding equipment operators when all the equipment on a single line is about to be powered off through the single-line power-off protection unit, and sending the warning data information to the visualization unit;
the visual unit is used for visually displaying the fault data information marked by the fault marking unit and visually displaying the warning reminding data information for single-wire power failure.
5. The system for monitoring and positioning high-voltage leakage of a coal mine full-power grid according to claim 2, wherein the output end of the image acquisition unit is connected with the input end of the image analysis unit, the output end of the image analysis unit is connected with the input end of the data transmission unit, the output end of the gas acquisition unit is connected with the input end of the gas analysis unit, the output end of the gas analysis unit is connected with the input end of the data transmission unit, and the output end of the data transmission unit is connected with the input end of the data receiving unit.
6. The system for monitoring and positioning high-voltage leakage of a coal mine full-power grid according to claim 3, wherein the output end of the data receiving unit is connected with the input end of the data collecting unit, the output end of the data collecting unit is connected with the input end of the data analyzing unit, the output end of the data analyzing unit is connected with the input end of the fault area checking unit, the output end of the fault area unit is connected with the input ends of the fault marking unit and the fault line checking unit respectively, and the output end of the fault line checking unit is connected with the input ends of the fault marking unit and the fault point checking unit respectively.
7. The system for monitoring and positioning high-voltage leakage of a coal mine full-power grid according to claim 4, wherein the output end of the parameter setting unit is connected with the input end of the database, the two-way connection is realized between the database and the data analysis unit and the fault area investigation unit, the output end of the fault point investigation unit is respectively connected with the input ends of the fault marking unit, the single-wire power-off protection unit and the fault analysis unit, the output end of the fault analysis unit is connected with the input end of the fault marking unit, the output end of the fault marking unit is connected with the input end of the visualization unit, the output end of the single-wire power-off protection unit is connected with the input end of the warning reminding unit, and the output end of the warning reminding unit is connected with the input end of the visualization unit.
CN202310931685.0A 2023-07-27 2023-07-27 High-voltage leakage monitoring and fault positioning system for coal mine full-power network Pending CN116643206A (en)

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