CN115021222A - Intelligent arc discharge protection device - Google Patents
Intelligent arc discharge protection device Download PDFInfo
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- CN115021222A CN115021222A CN202210672298.5A CN202210672298A CN115021222A CN 115021222 A CN115021222 A CN 115021222A CN 202210672298 A CN202210672298 A CN 202210672298A CN 115021222 A CN115021222 A CN 115021222A
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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
- 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
- H02H7/263—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 measured values
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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
- 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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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention discloses an intelligent arc discharge protection device, belonging to the field of electric power and used for solving the problems that a power supply cannot be cut off in time when an arc phenomenon occurs in an electric power circuit and corresponding arc light protection measures cannot be set according to actual conditions, comprising an operation and maintenance allocation module, a circuit dividing module, a control setting module, an arc light analysis module and an arc light positioning module, wherein the circuit dividing module is used for dividing the electric power circuit, the arc light analysis module is used for analyzing the discharge conditions of a plurality of monitoring line sections, the arc light positioning module is used for positioning abnormal monitoring line sections, the control setting module is used for setting the control grade of the monitoring line sections, the operation and maintenance allocation module is used for performing operation and maintenance allocation on the operation and maintenance grade of the monitoring line sections by combining the current operation and maintenance grade, the invention accurately positions the arc light in the electric power circuit so as to cut off the power supply in time, meanwhile, arc light protection measures with matched strength are set for the power line by combining with actual conditions.
Description
Technical Field
The invention belongs to the field of electric power, relates to an arc discharge protection and measurement technology, and particularly relates to an intelligent arc discharge protection device.
Background
Electric power is an energy source using electric energy as power. The discovery and application of electric power has raised the second industrialized climax, and is one of three technological revolution which occur in the world, and the science and technology has changed the lives of people. The large-scale power system is one of the most important achievements in the history of human engineering science, and is a power generation and consumption system which consists of links of power generation, power transmission, power transformation, power distribution, power utilization and the like. It converts the primary energy of nature into electric power through mechanical energy devices, and then supplies the electric power to each user through power transmission, transformation and distribution.
Among the prior art, when electric power line took place the arc light phenomenon, thereby often cause great loss to electric power system because can't in time cut off the power, also can't set for the arc light safeguard measure of phase-match control dynamics simultaneously according to electric power line's actual conditions, for this reason, we provide an intelligence arc light discharge protection device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an intelligent arc discharge protection device.
The technical problem to be solved by the invention is as follows:
(1) how to accurately position arc light in a power line in time and cut off a power supply to avoid power loss;
(2) how to set the arc light protection measures of corresponding strength for the power line based on multi-source data.
The purpose of the invention can be realized by the following technical scheme:
an intelligent arc discharge protection device comprises an arc protector and is characterized in that a processor is assembled in the arc protector, the processor is in data connection with a data acquisition module and a server, and the server is connected with a user terminal, an operation and maintenance allocation module, a circuit division module, a control setting module, an arc analysis module and an arc positioning module;
the line division module is used for dividing the power line to obtain a plurality of monitoring line sections u;
the data acquisition module is used for acquiring the discharge data of the monitoring line sections and sending the discharge data to the arc light analysis module;
the arc light analysis module is used for analyzing the discharge conditions of a plurality of monitoring line sections to generate a line abnormal signal, a line monitoring signal or a line normal signal;
the arc light positioning module is used for positioning the abnormal monitoring line section to obtain an arc light positioning line section;
the data acquisition module is also used for acquiring the arc light generation times and the operation and maintenance data of the monitoring line section and sending the arc light generation times and the operation and maintenance data to the control setting module;
the management and control setting module is used for setting the management and control level of the monitoring line section to obtain the current operation and maintenance level of the monitoring line section and sending the current operation and maintenance level to the operation and maintenance allocation module;
and the operation and maintenance allocation module is used for performing operation and maintenance allocation on the operation and maintenance level of the monitoring line section by combining the current operation and maintenance level.
Further, the discharge data comprises a voltage value, a temperature value and a decibel value of the monitoring line;
the operation and maintenance data comprises the on-site checking times, the operation and maintenance times and the last operation and maintenance time of the monitoring line section.
Further, the analysis process of the arc analysis module is as follows:
setting monitoring time of twenty-four hours all day, and setting a plurality of time points in the monitoring time;
acquiring a voltage value, a temperature value and a decibel value of a corresponding monitoring line section at each time point;
if the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point do not exceed the corresponding set threshold values, generating a normal line signal;
if any one of the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point exceeds a corresponding set threshold value, calculating by using a formula to obtain a running deviation value of the monitoring line section;
if the operation deviation value of the monitoring line section is compared with the operation deviation threshold value, generating a line abnormal signal, a line monitoring signal or a line normal signal;
and the arc light analysis module feeds back the line abnormal signal, the line monitoring signal or the line normal signal to the server.
Further, if the server receives a normal line signal, no operation is performed;
if the server receives the line monitoring signal, a line checking instruction is generated and loaded to the user terminal, a worker at the user terminal checks the specified monitoring line section on the spot, and the checking times of the monitoring line section are increased once;
and if the server receives the line abnormal signal, generating an abnormal positioning instruction and loading the abnormal positioning instruction to the arc light positioning module.
Further, the arc positioning module specifically comprises the following positioning process:
classifying the monitoring line section generating the line abnormal signal into an abnormal line section and selecting an adjacent abnormal line section;
acquiring time corresponding to the abnormal line signals generated by the adjacent abnormal line sections, calculating the difference value of the time of generating the abnormal line signals of the adjacent abnormal line sections, and taking the absolute value to obtain the time difference value;
obtaining the line length of the adjacent abnormal line section, and dividing the line length by the time difference to obtain the arc light explosion speed of the power line;
taking the abnormal circuit section corresponding to the minimum time point as a starting end, obtaining a monitoring circuit section to which the arc light is about to arrive according to the arc light explosion speed, and calibrating the monitoring circuit section to which the arc light is about to arrive as an arc light positioning circuit section;
the arc positioning module feeds back the arc positioning circuit section to the server, the server sends the arc positioning circuit section to the processor, the processor cuts off a power supply of the arc positioning circuit section, meanwhile, the processor sends the arc positioning circuit section to the display module, and the display module is used for displaying the arc positioning circuit section.
Further, the setting process of the control setting module is specifically as follows:
acquiring the arc light generation times, the operation and maintenance interval duration, the on-site checking times and the operation and maintenance times of the monitoring line section, and calculating to obtain a control value of the monitoring line section through a formula;
and acquiring a control value range stored in the server, wherein the control value range corresponds to different operation and maintenance grades, and the control value range is compared with the control value range to obtain the operation and maintenance grade of the monitoring line section.
Further, the operation, maintenance and deployment module specifically comprises the following working processes:
if the current operation and maintenance grade of the monitoring line section is consistent with the preset operation and maintenance grade, generating a grade normal signal;
if the current operation and maintenance grade of the monitoring line section is higher than the preset operation and maintenance grade, generating a grade reduction signal;
if the current operation and maintenance level of the monitoring line section is lower than a preset operation and maintenance level, generating a level increase signal;
and the operation and maintenance allocation module feeds back the grade normal signal, the grade reduction signal or the grade increase signal to the server.
Further, if the server receives the level normal signal, no operation is performed;
if the server receives the grade reduction signal, a grade reduction instruction is generated and sent to the user terminal, and the operation and maintenance grade of the monitoring line section is reduced by a worker at the user terminal;
and if the server receives the grade increase signal, generating a grade increase instruction and sending the grade increase instruction to the user terminal, and increasing the operation and maintenance grade of the monitoring line section by a worker at the user terminal.
A working method of an intelligent arc discharge protection device comprises the following specific steps:
step S101, a power line is divided by a line dividing module to obtain a plurality of monitoring line sections, and discharge data of the monitoring line sections are collected by a data collecting module and sent to an arc light analyzing module;
step S102, an arc light analysis module analyzes the discharge conditions of a plurality of monitoring line sections, calculates the operation deviation values of the monitoring line sections and compares the operation deviation values with operation deviation threshold values to generate line abnormal signals, line monitoring signals or line normal signals;
s103, positioning the abnormal monitoring line section by an arc positioning module to obtain an arc positioning line section, and cutting off a power supply of the arc positioning line section;
step S104, the data acquisition module also acquires the arc light generation times and the operation and maintenance data of the monitoring line section and sends the arc light generation times and the operation and maintenance data to the control setting module, and the control setting module sets the control grade of the monitoring line section to obtain the operation and maintenance grade of the monitoring line section and sends the operation and maintenance grade to the operation and maintenance deployment module;
and step S105, the operation and maintenance allocation module performs operation and maintenance allocation on the operation and maintenance level of the monitoring line section by combining the current operation and maintenance level, and generates a normal level signal, a reduced level signal or an increased level signal.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the electric power circuit is divided by the circuit dividing module to obtain a plurality of monitoring circuit sections, the arc light analysis module analyzes the discharge conditions of the plurality of monitoring circuit sections to obtain the offset values of the monitoring circuit sections and compare the offset threshold values to generate abnormal circuit signals, abnormal circuit signals or normal circuit signals, the arc light positioning module positions the abnormal monitoring circuit sections by combining the abnormal circuit signals to obtain arc light positioning circuit sections, so that the power supply of the arc light positioning circuit sections is conveniently cut off, the arc light in the electric power circuit can be accurately positioned, and the power supply is cut off in time to avoid the occurrence of major loss of an electric power system;
2. the method comprises the steps of setting the control level of a monitoring line section by using a control setting module, obtaining the operation and maintenance level of the monitoring line section, sending the operation and maintenance level to an operation and maintenance allocation module, carrying out operation and maintenance allocation on the operation and maintenance level of the monitoring line section by combining the current operation and maintenance level by the operation and maintenance allocation module, producing a normal level signal, a reduced level signal or an increased level signal, and carrying out corresponding operation according to different signals.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an overall system block diagram of the present invention;
FIG. 3 is a block diagram of yet another system of the present invention.
In the figure: 1. an arc light protector; 2. a display module; 3. an operation panel.
Detailed Description
The technical solutions of the present invention will be described below clearly and completely in conjunction with the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
In this embodiment, please refer to fig. 1-2, an intelligent arc discharge protection device includes an arc protector 1, a display module 2, an operation panel 3 and a processor, the display module 2 is installed on one side surface of the arc protector 1, the operation panel is installed on the same side surface of the display module 2, the processor is installed inside the arc protector 1, the processor is connected with the display module 2, and data of a plurality of processors is connected with a data acquisition module and a server.
The server is connected with a user terminal, a circuit dividing module, an arc light analysis module and an arc light positioning module;
the user terminal is used for registering and logging in the server after the staff input personal information and sending the personal information to the server for storage;
the personal information comprises the name of a worker, the number of real-name authentication and the like;
the line dividing module is used for dividing the power line to obtain a plurality of monitoring line sections u, wherein u is 1, 2, … …, and z is a positive integer;
in specific implementation, the power line may be divided according to length, or may be divided according to nodes of the power line, which is not specifically limited herein;
the data acquisition module is used for acquiring discharge data of a plurality of monitoring line sections and sending the discharge data to the processor, and the processor sends the discharge data to the server;
specifically, the discharge data includes a voltage value, a temperature value, a decibel value, and the like of the monitoring line;
the server sends the discharge data to an arc light analysis module, the arc light analysis module is used for analyzing the discharge condition of a plurality of monitoring line sections, and the analysis process specifically comprises the following steps:
the method comprises the following steps: setting monitoring time of twenty-four hours all day, and setting a plurality of time points in the monitoring time;
step two: acquiring a voltage value DYut, a temperature value WDut and a decibel value FBut of a corresponding monitoring line section at each time point, wherein t is 1, 2, … …, x and x are positive integers, and t represents the number of the time point;
step three: if the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point do not exceed the corresponding set threshold values, generating a normal line signal;
if any one of the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point exceeds the corresponding set threshold value, entering the next step;
step four: calculating the operation deviation value YPut (operation deviation value is abbreviated, and the operation deviation value is adopted to replace the operation deviation value subsequently) of the monitoring line section by using a formula YPut | DYut-DY |. xa 1+ | WDut-WD |. xa 2+ | FBut-FB |. xa 3; in the formula, a1, a2 and a3 are all weight coefficients with fixed values, and the values of a1, a2 and a3 are all larger than zero;
step five: if the operation deviation value of the monitoring line section is larger than or equal to the second operation deviation threshold value, generating a line abnormal signal;
if the motion deviation value of the monitoring line section is greater than or equal to the first motion deviation threshold value and smaller than the second motion deviation threshold value, generating a line monitoring signal;
if the motion deviation value of the monitoring line section is greater than or equal to the first motion deviation threshold value and smaller than the second motion deviation threshold value, generating a normal line signal;
the arc light analysis module feeds back a line abnormal signal, a line monitoring signal or a line normal signal to the server;
if the server receives the normal line signal, no operation is performed;
if the server receives the line monitoring signal, generating a line checking instruction and loading the line checking instruction to the user terminal, checking the specified monitoring line section on site by a worker at the user terminal, and increasing the checking times of the monitoring line section once;
if the server receives the line abnormal signal, an abnormal positioning instruction is generated and loaded to the arc positioning module, the arc positioning module is used for positioning the abnormal monitoring line section after receiving the abnormal positioning instruction, and the positioning process specifically comprises the following steps:
step S1: classifying the monitoring line section generating the line abnormal signal into an abnormal line section and selecting an adjacent abnormal line section;
step S2: acquiring time corresponding to the abnormal line signals generated by the adjacent abnormal line sections, calculating the difference value of the time of generating the abnormal line signals of the adjacent abnormal line sections, and taking the absolute value to obtain the time difference value;
step S3: obtaining the line length of the adjacent abnormal line section, and dividing the line length by the time difference to obtain the arc light explosion speed of the power line;
step S4: taking the abnormal line section corresponding to the minimum time point as a starting end, and obtaining a monitoring line section to which the arc light is about to reach according to the arc light explosion speed;
step S5: calibrating a monitoring circuit section to which the arc light is about to arrive as an arc light positioning circuit section;
the arc positioning module feeds back the arc positioning circuit section to the server, the server sends the arc positioning circuit section to the processor, the processor cuts off a power supply of the arc positioning circuit section, meanwhile, the processor sends the arc positioning circuit section to the display module 2, and the display module 2 is used for displaying the arc positioning circuit section.
Example two
In this embodiment, please refer to fig. 3, the server is further connected to an operation and maintenance allocating module, a line dividing module, and a control setting module;
the data acquisition module is further used for acquiring the arc light generation times and the operation and maintenance data of the monitoring line section and sending the arc light generation times and the operation and maintenance data to the processor, the processor sends the arc light generation times and the operation and maintenance data to the server, and the server sends the abnormal data and the operation and maintenance data to the control setting module;
specifically, the operation and maintenance data includes the field check times, the operation and maintenance times, the last operation and maintenance time, and the like of the monitoring line section;
the control setting module is used for setting the control level of the monitoring line section, and the setting process is as follows:
step SS 1: acquiring the number of arc occurrences of the monitored line section, and marking the number of arc occurrences as HCu;
step SS 2: acquiring the last operation and maintenance time of the monitoring line section, and subtracting the last operation and maintenance time from the current time of the server to obtain an operation and maintenance interval duration JTu of the monitoring line section;
step SS 3: acquiring the on-site checking times and the operation maintenance times of the monitoring line section, and respectively marking the on-site checking times and the operation maintenance times as KCu and WCu;
step SS 4: by the formula
Calculating to obtain a control value GKu of the monitoring line section; in the formula, b1, b2 and b3 are all proportionality coefficients with fixed numerical values, the values of b1, b2 and b3 are all larger than zero, and e is a natural constant;
step SS 5: acquiring a control value range stored in a server, wherein the control value range corresponds to different operation and maintenance levels, and the control value is compared with the control value range to obtain the operation and maintenance level of the monitoring line section;
the management and control setting module feeds back the current operation and maintenance grade of the monitoring line section to the server, and the server sends the current operation and maintenance grade of the monitoring line section to the operation and maintenance allocation module;
the operation and maintenance allocation module is used for performing operation and maintenance allocation on the operation and maintenance level of the monitoring line section by combining the current operation and maintenance level, and the working process is as follows:
if the current operation and maintenance grade of the monitoring line section is consistent with the preset operation and maintenance grade, generating a grade normal signal;
if the current operation and maintenance grade of the monitoring line section is higher than the preset operation and maintenance grade, generating a grade reduction signal;
if the current operation and maintenance level of the monitoring line section is lower than a preset operation and maintenance level, generating a level increase signal;
the operation and maintenance allocation module feeds back a grade normal signal, a grade reduction signal or a grade increase signal to the server;
if the server receives the level normal signal, no operation is performed;
if the server receives the grade reduction signal, a grade reduction instruction is generated and sent to the user terminal, and the operation and maintenance grade of the monitoring line section is reduced by a worker at the user terminal;
and if the server receives the grade increase signal, generating a grade increase instruction and sending the grade increase instruction to the user terminal, and increasing the operation and maintenance grade of the monitoring line section by a worker at the user terminal.
EXAMPLE III
Based on another concept of the same invention, a working method of the intelligent arc discharge protection device is provided, and the working method specifically comprises the following steps:
step S101, a power line is divided by a line dividing module to obtain a plurality of monitoring line sections u, discharge data of the monitoring line sections are collected by a data collecting module and sent to a processor, the processor sends the discharge data to a server, and the server sends the discharge data to an arc light analyzing module;
step S102, analyzing the discharging condition of a plurality of monitoring line sections through an arc light analysis module, establishing twenty-four hours of monitoring duration all day, setting a plurality of time points in the monitoring duration, obtaining a voltage value DYut, a temperature value WDut and a decibel value FBut of the corresponding monitoring line section at each time point, generating a normal line signal if the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point do not exceed corresponding set thresholds, calculating the operation deviation value YPut of the monitoring line section by using a formula YPut | DYut-DY | × a1+ | WDut-WD | a2+ | FBut-FB | a3 if any one of the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point exceeds the corresponding set threshold, generating an abnormal line signal if the operation deviation value of the monitoring line section is greater than or equal to a second operation deviation threshold, if the deviation value of the monitoring line section is greater than or equal to the first deviation threshold value and smaller than the second deviation threshold value, generating a line monitoring signal, if the deviation value of the monitoring line section is greater than or equal to the first deviation threshold value and smaller than the second deviation threshold value, generating a line normal signal, feeding back a line abnormal signal, the line monitoring signal or the line normal signal to the server by the arc light analysis module, if the server receives the line normal signal, not performing any operation, if the server receives the line monitoring signal, generating a line checking instruction and loading the line checking instruction to the user terminal, checking the specified monitoring line section on site by a worker at the user terminal, simultaneously monitoring the increase of the checking times of the line section once, and if the server receives the line abnormal signal, generating an abnormal positioning instruction and loading the abnormal positioning instruction to the arc light positioning module;
step S103, the arc positioning module is used for positioning the abnormal monitoring line section after receiving the abnormal positioning instruction, classifying the monitoring line section generating the abnormal line signal into the abnormal line section and selecting the adjacent abnormal line section, acquiring the time corresponding to the abnormal line signal generated by the adjacent abnormal line section, calculating the time difference value of the abnormal line signal generated by the adjacent abnormal line section and taking the absolute value to obtain the time difference value, then acquiring the line length of the adjacent abnormal line section, dividing the line length by the time difference value to obtain the arc explosion speed of the power line, taking the abnormal line section corresponding to the minimum time point as the starting end, acquiring the monitoring line section to which the arc is about to arrive according to the arc explosion speed, designating the monitoring line section to which the arc is about to arrive as the arc positioning line section, and feeding the arc positioning line section back to the server by the arc positioning module, the server sends the arc positioning line section to the processor, the processor cuts off a power supply of the arc positioning line section, meanwhile, the processor sends the arc positioning line section to the display module 2, and the display module 2 displays the arc positioning line section;
step S104, the data acquisition module further acquires the arc light occurrence times and the operation and maintenance data of the monitoring line section and sends the arc light occurrence times and the operation and maintenance data to the processor, the processor sends the arc light occurrence times and the operation and maintenance data to the server, the server sends the abnormal data and the operation and maintenance data to the control setting module, the control setting module sets the control level of the monitoring line section to obtain the arc light occurrence times HCu, the operation and maintenance interval duration JTu, the field check times KCu and the operation and maintenance times WCu of the monitoring line section, and the operation and maintenance times are calculated according to a formula
Calculating to obtain a control value GKu of the monitoring line section, finally obtaining a control value range stored in the server, wherein the control value range corresponds to different operation and maintenance grades, the control value compares the control value range to obtain the operation and maintenance grade of the monitoring line section, the control setting module feeds the current operation and maintenance grade of the monitoring line section back to the server, and the server sends the current operation and maintenance grade of the monitoring line section to the operation and maintenance allocation module;
step S105, the operation and maintenance allocation module is used for performing operation and maintenance allocation on the operation and maintenance level of the monitoring line section in combination with the current operation and maintenance level, if the current operation and maintenance level of the monitoring line section is consistent with the preset operation and maintenance level, a level normal signal is generated, if the current operation and maintenance level of the monitoring line section is higher than the preset operation and maintenance level, a level reduction signal is generated, if the current operation and maintenance level of the monitoring line section is lower than the preset operation and maintenance level, a level increase signal is generated, the operation and maintenance allocation module feeds the level normal signal, the level reduction signal or the level increase signal back to the server, if the server receives the level normal signal, no operation is performed, if the server receives the level reduction signal, a level reduction instruction is generated and sent to the user terminal, a worker at the user terminal reduces the operation and maintenance level of the monitoring line section, if the server receives the level increase signal, and generating a grade increase instruction and sending the grade increase instruction to the user terminal, and increasing the operation and maintenance grade of the monitoring line section by a worker at the user terminal.
The above formulas are all calculated by taking the numerical value of the dimension, the formula is a formula of the latest real situation obtained by collecting a large amount of data and performing software simulation, the preset parameters in the formula are set by the technical personnel in the field according to the actual situation, the weight coefficient and the scale coefficient are specific numerical values obtained by quantizing each parameter, and the subsequent comparison is convenient.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. An intelligent arc discharge protection device comprises an arc protector (1), a display module (2) and a processor, wherein the display module (2) is installed on one side face of the arc protector (1), the processor is assembled in the arc protector (1), and the processor is connected with the display module (2), and the intelligent arc discharge protection device is characterized in that the processor is in data connection with a data acquisition module and a server, and the server is connected with a user terminal, an operation and maintenance allocation module, a circuit division module, a control setting module, an arc light analysis module and an arc light positioning module;
the line dividing module is used for dividing the power line to obtain a plurality of monitoring line sections u; the data acquisition module is used for acquiring discharge data of a plurality of monitoring line sections and sending the discharge data to the processor, the processor sends the discharge data to the server, the server sends the discharge data to the arc light analysis module, and the arc light analysis module is used for analyzing the discharge conditions of the plurality of monitoring line sections to generate line abnormal signals, line monitoring signals or line normal signals;
the arc positioning module is used for positioning an abnormal monitoring line section to obtain an arc positioning line section which is fed back to the server, the server sends the arc positioning line section to the processor, the processor cuts off a power supply of the arc positioning line section, meanwhile, the processor sends the arc positioning line section to the display module (2), and the display module (2) is used for displaying the arc positioning line section;
the data acquisition module is further used for acquiring the arc light generation times and the operation and maintenance data of the monitoring line section and sending the arc light generation times and the operation and maintenance data to the processor, the processor sends the arc light generation times and the operation and maintenance data to the server, and the server sends the abnormal data and the operation and maintenance data to the control setting module;
the management and control setting module is used for setting the management and control level of the monitoring line section to obtain the current operation and maintenance level of the monitoring line section and feeding the current operation and maintenance level back to the server, the server sends the current operation and maintenance level of the monitoring line section to the operation and maintenance allocation module, and the operation and maintenance allocation module is used for performing operation and maintenance allocation on the operation and maintenance level of the monitoring line section in combination with the current operation and maintenance level.
2. The intelligent arc discharge protection device of claim 1 wherein the discharge data comprises voltage, temperature and decibel values of the monitoring line;
the operation and maintenance data comprises the on-site checking times, the operation and maintenance times and the last operation and maintenance time of the monitoring line section.
3. The intelligent arc discharge protection device of claim 1 wherein the arc analysis module is specifically configured to perform the following analysis:
the method comprises the following steps: setting monitoring time of twenty-four hours all day, and setting a plurality of time points in the monitoring time;
step two: acquiring a voltage value DYut, a temperature value WDut and a decibel value FBut of a corresponding monitoring line section at each time point, wherein t is 1, 2, … …, x and x are positive integers, and t represents the number of the time point;
step three: if the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point do not exceed the corresponding set threshold values, generating a normal line signal;
if any one of the voltage value, the temperature value and the decibel value of the monitoring line section at the same time point exceeds the corresponding set threshold value, entering the next step;
step four: calculating a motion deviation value YPut of the monitoring line section by using a formula YPut ═ DYut-DY | × a1+ | WDut-WD | × a2+ | FBut-FB | × a 3; in the formula, a1, a2 and a3 are all weight coefficients with fixed values, and the values of a1, a2 and a3 are all larger than zero;
step five: if the operation deviation value of the monitoring line section is larger than or equal to the second operation deviation threshold value, generating a line abnormal signal;
if the motion deviation value of the monitoring line section is greater than or equal to the first motion deviation threshold value and smaller than the second motion deviation threshold value, generating a line monitoring signal;
if the motion deviation value of the monitoring line section is greater than or equal to the first motion deviation threshold value and smaller than the second motion deviation threshold value, generating a normal line signal;
and the arc light analysis module feeds back the line abnormal signal, the line monitoring signal or the line normal signal to the server.
4. The intelligent arc discharge protection device of claim 3, wherein the feedback is to a server;
if the server receives the normal line signal, no operation is performed;
if the server receives the line monitoring signal, generating a line checking instruction and loading the line checking instruction to the user terminal, checking the specified monitoring line section on site by a worker at the user terminal, and increasing the checking times of the monitoring line section once;
and if the server receives the line abnormal signal, generating an abnormal positioning instruction and loading the abnormal positioning instruction to the arc light positioning module.
5. The intelligent arc discharge protection device of claim 1, wherein the arc positioning module is specifically positioned as follows:
step S1: classifying the monitoring line section generating the line abnormal signal into an abnormal line section and selecting an adjacent abnormal line section;
step S2: acquiring time corresponding to the abnormal line signals generated by the adjacent abnormal line sections, calculating the difference value of the time of generating the abnormal line signals of the adjacent abnormal line sections, and taking the absolute value to obtain the time difference value;
step S3: obtaining the line length of the adjacent abnormal line section, and dividing the line length by the time difference to obtain the arc light explosion speed of the power line;
step S4: taking the abnormal line section corresponding to the minimum time point as a starting end, and obtaining a monitoring line section to which the arc light is about to reach according to the arc light explosion speed;
step S5: the section of the monitoring line where the arc is about to arrive is designated as the arc-localizing line section.
6. The intelligent arc discharge protection device of claim 1, wherein the setting process of the control setting module is as follows:
step SS 1: acquiring the number of arc occurrences of the monitored line section, and marking the number of arc occurrences as HCu;
step SS 2: acquiring last operation and maintenance time of the monitoring line section, and subtracting the last operation and maintenance time from the current time of the server to obtain operation and maintenance interval duration JTu of the monitoring line section;
step SS 3: acquiring the on-site checking times and the operation maintenance times of the monitoring line section, and respectively marking the on-site checking times and the operation maintenance times as KCu and WCu;
step SS 4: by the formula
Calculating to obtain a control value GKu of the monitoring line section; in the formula, b1, b2 and b3 are all proportional coefficients with fixed numerical values, the values of b1, b2 and b3 are all larger than zero, and e is a natural constant;
step SS 5: and acquiring a control value range stored in the server, wherein the control value range corresponds to different operation and maintenance grades, and the control value range is compared with the control value range to obtain the operation and maintenance grade of the monitoring line section.
7. The intelligent arc discharge protection device of claim 1, wherein the operation and maintenance scheduling module specifically operates as follows:
if the current operation and maintenance grade of the monitoring line section is consistent with the preset operation and maintenance grade, generating a grade normal signal;
if the current operation and maintenance grade of the monitoring line section is higher than the preset operation and maintenance grade, generating a grade reduction signal;
if the current operation and maintenance level of the monitoring line section is lower than a preset operation and maintenance level, generating a level increase signal;
and the operation and maintenance allocation module feeds back the grade normal signal, the grade reduction signal or the grade increase signal to the server.
8. The intelligent arc discharge protection device of claim 7 wherein if the server receives a stage normal signal, no action is taken;
if the server receives the grade reduction signal, a grade reduction instruction is generated and sent to the user terminal, and the operation and maintenance grade of the monitoring line section is reduced by a worker at the user terminal;
and if the server receives the grade increase signal, generating a grade increase instruction and sending the grade increase instruction to the user terminal, and increasing the operation and maintenance grade of the monitoring line section by a worker at the user terminal.
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