CN106855603A - Feeder line fault independent positioning method, detecting terminal, main website, alignment system - Google Patents
Feeder line fault independent positioning method, detecting terminal, main website, alignment system Download PDFInfo
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- CN106855603A CN106855603A CN201611173732.6A CN201611173732A CN106855603A CN 106855603 A CN106855603 A CN 106855603A CN 201611173732 A CN201611173732 A CN 201611173732A CN 106855603 A CN106855603 A CN 106855603A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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Abstract
The invention provides a kind of feeder line fault independent positioning method,Detecting terminal,Main website,Alignment system,Detecting terminal uses electric current,Sound,Shock wave,Magnetic field,Infrared ray,Ultraviolet,Visible ray,The sensors such as air pressure,Detection can reflect the physical quantity of power line short-circuit fault signature and the supplemental characteristic of the physical quantity related to power circuit running status,And whether identification power circuit breaks down and determines fault time on the spot,Detecting terminal is after associate power line failure is identified,The data transfer that will be detected is to positioning master station,Positioning master station includes data reception component,Data storage component,Data handling component,Man-machine interaction component etc.,The location of data and the corresponding detecting terminal of data according to detecting terminal offer,It is calculated the position of feeder line fault point,Realize the timely of feeder line fault,It is accurately positioned,Overcome the shortcomings of fault location system in background technology.
Description
Technical field
The present invention relates to a kind of feeder line fault independent positioning method, detecting terminal, main website, alignment system.
Background technology
Power circuit is the element of power system, belongs to the intermediate link of conveying and distribution electric energy, power train
The safe and stable operation of system has extremely important for the national economic development and social public order and normal life order
Meaning, because power circuit has a very wide distribution, often faces the influence of various different geography natural environment and climate environment, is power system
Weak link, especially high pressure, super-pressure and extra-high voltage electric power circuit distance, distributional region are wide, geographical environment is various, gas
As complicated condition, flashover can occur under the harsh weather such as thunderbolt, misty rain, filth and environmental condition, cause power line short-circuit
The generation of failure.How power line short-circuit failure quickly searches trouble point after occurring, it is to ensure electricity to eliminate failure, resume operation
The important subject of net safe operation and groundwork.Traditional feeder line fault localization method such as impedance method, failure point
Analysis method（Power frequency parametric method）, traveling wave method etc., be based on that Electrical Power Line Parameter is theoretical and traveling wave communication theory, it is considered to the structure of circuit
Feature etc. carries out detection and signal analysis fault point, and these Fault Locating Methods are often needed to the concrete condition of different circuits
Correct, and easily influenceed to cause fault location inaccurate by signal propagation attenuation and interference, it is impossible to meet the fast of power circuit
Quick-recovery transmission of electricity, the requirement of safe and stable operation；A kind of existing feeder line fault on-line monitoring system is by monitoring circuit
The fault current flowed through on steel tower carrys out fault point, and it has the disadvantage that the failure of tower grounding can only be located through, and for event
The failure that barrier electric current is not passed through shaft tower can not then be positioned, so the basic demand of feeder line fault positioning cannot be met.
The content of the invention
It is technical deficiency more than solving, the invention provides a kind of feeder line fault independent positioning method, detection eventually
End, main website, alignment system, it is possible to increase search the success rate of trouble point, save the man power and material's money searched spent by failure
Source.
The present invention is achieved by the following measures：
A kind of feeder line fault independent positioning method of the invention, including：
Step one, detect the known location installed in the detecting terminal that the related known position in footpath is walked to associate power circuit
The physical quantity and the physical quantity related to power circuit running status that power line short-circuit fault signature can be reflected at place
Supplemental characteristic, it is described to walk the related known location in footpath to power circuit and include：Position, upright projection on electric power line pole tower in
Position more than ground on power circuit path or near path, be able to detect that it is described can reflect power line short-circuit therefore
Hinder the other positions of the parameter of the physical quantity and the physical quantity related to power circuit running status of feature, it is described to reflect
The physical quantity of power line short-circuit fault signature and the physical quantity related to power circuit running status include：Power circuit is led
Magnetic field around line；
Step 2, the detecting terminal record the supplemental characteristic and the supplemental characteristic corresponding time；
There is ascending mutation in the magnetic field intensity that step 3, the detecting terminal will be detected around power line lead
Moment T0, carves at the beginning of being defined as associate power line failure；
Step 4, the detecting terminal extract fault reference data after T0, and the fault reference data include：Magnetic field intensity is sent out
Detection in the time adjacent segments Δ t2 after time adjacent segments Δ t1 and T0 before time T0, T0 of the ascending mutation of life
To the physical quantity that can reflect power line short-circuit fault signature and the physics related to power circuit running status
The supplemental characteristic of amount and its corresponding time, described in time period Δ t1 can reflect power line short-circuit fault signature
The parameter number that the data source of physical quantity and the physical quantity related to power circuit running status is recorded in step 2
According to and its corresponding time, the time span of the Δ t1 and Δ t2 is previously given, and the Δ t1 is more than or equal to zero
Second, the Δ t2 is more than zero second, and the length of Δ t1 and the length of Δ t2 are satisfied by step 6 the need for localization of fault computing；
The fault reference data transfer that step 5, the detecting terminal will be extracted in step 4 is to main website；
Step 6, main website are using the fault reference data transmitted in step 5, and detect the fault reference number
According to the detecting terminal residing for the known location, according to it is set in advance rule and algorithm process data, draw electric power
The information of the position of failure point of line failure, and/or, power circuit is carved at the beginning of breaking down.
The physical quantity of power line short-circuit fault signature can be reflected described in above-mentioned steps one and transported with power circuit
The related physical quantity of row state also includes：The sound produced by arc discharge that power line lead is grounded or short circuit is caused；
With,
Rule set in advance and algorithm include described in above-mentioned steps six：Magnetic field intensity that detecting terminal is detected occur by
The small moment to big mutation carves at the beginning of being broken down as power circuit, the sound that detecting terminal is detected
The ascending mutation moment, and/or, the intensity of the sound is carved as feeder line fault point at the beginning of exceeding preset value
The sound that arc discharge sends reaches the moment of corresponding detecting terminal, according to sound, and/or, the aerial propagation of shock wave
The product that the time period T at the moment for reaching corresponding detecting terminal is carved to the sound at the beginning of speed V and the failure draws
Air line distance L between trouble point and the known installation site of corresponding detecting terminal, and according to associate power line route, calculate
The alternative trouble point gone out on associate power line conductor, and/or, the localization of faults will be detected according to multiple detecting terminals
To the described alternative trouble point that calculates of the fault reference data compare, position overlaps or relative distance is to fixed number
Described alternative trouble point in value is defined as the localization of faults of associate power line failure, and the localization of faults is this
The position of failure point of the positioning that method is finally obtained.
The physical quantity of power line short-circuit fault signature can be reflected described in above-mentioned steps one and transported with power circuit
The related physical quantity of row state also includes：The shock wave produced by arc discharge that power line lead is grounded or short circuit is caused；
With,
Rule set in advance and algorithm also include described in step 6：The magnetic field intensity that detecting terminal is detected occurs by small
To big mutation moment broken down as power circuit at the beginning of carve, the shock wave that detecting terminal is detected is existed
The detecting terminal installed position reaches the moment of peak overpressure, and the shock wave wavefront sent as feeder line fault point is arrived
Up to the moment of corresponding detecting terminal, according to being carved at the beginning of the aerial spread speed V of shock wave and the failure to described
Shock wave wavefront reach the time period T at the moment of corresponding detecting terminal product draw trouble point with known to corresponding detecting terminal
Air line distance L between installation site, and according to associate power line route, calculate on associate power line conductor
Alternative trouble point, and/or, the localization of faults calculates the fault reference data detected according to multiple detecting terminals
The described alternative trouble point for going out compares, and position overlaps or relative distance is defined as in the described alternative trouble point given in numerical value
The localization of faults of associate power line failure, the localization of faults is the trouble point of the positioning that this method is finally obtained
Position.
The physical quantity of power line short-circuit fault signature can be reflected described in above-mentioned steps one and transported with power circuit
The related physical quantity of row state also includes：The visible ray produced by arc discharge that power line lead is grounded or short circuit is caused,
And/or, infrared ray, and/or, ultraviolet；
With,
Rule set in advance and algorithm also include described in step 6：By the visible ray in the fault reference data, and/
Or, infrared ray, and/or, the video of ultra-violet bands, and/or, the power line lead ground connection or short that be recorded in static images
The position of the arc discharge that road is caused is defined as the localization of faults of associate power line failure, and the localization of faults is
The position of failure point of the positioning that this method is finally obtained.
The physical quantity of power line short-circuit fault signature can be reflected described in above-mentioned steps one and transported with power circuit
The related physical quantity of row state also includes：Atmospheric pressure；
With,
Rule set in advance and algorithm also include described in step 6：By the atmospheric pressure in the fault reference data
Data are defined as alternative on associate power line conductor higher than the installation site of the corresponding detecting terminal of set-point
Trouble point, and/or, the localization of faults,
With,
The atmospheric pressure higher than set-point that multiple detecting terminals in fault reference data described in step 6 are detected
The maximum of data compares, the detection in the barometric pressure data maximum corresponding to maximum barometric pressure data
The installation site of terminal is defined as the localization of faults on associate power line conductor, and the localization of faults is last this method
The position of failure point of the positioning for obtaining.
The physical quantity of power line short-circuit fault signature can be reflected described in above-mentioned steps one and transported with power circuit
The related physical quantity of row state also includes：Flow through the earth current in electric power line pole tower Grounding；
With,
The predetermined rule and algorithm also include：Electric power will be flowed through described in fault reference data described in step 6
The position of the associate power overhead line structures that the earth current in overhead line structures Grounding exceedes set-point is defined as associate power
The alternative trouble point of circuit, and/or, the localization of faults；
With,
By multiple detecting terminal in fault reference data described in step 6 detect more than flowing through electric power described in set-point
Earth current data in overhead line structures Grounding compare, the related electric power line pole tower corresponding to maximum therein
Position be defined as the localization of faults of associate power circuit, the localization of faults is the event of the positioning that this method is finally obtained
Barrier point position.
Above-mentioned predetermined rule and algorithm also include：The operation information and phase of associate power circuit are provided by user
The fault signature of the failure that power circuit occurs is closed, is carved at the beginning of associate power line failure in positioning result and is in phase
(time period that the associate power circuit does not break down is not included within the time period that pass power circuit does not break down
The initial and end moment) fault location result be defined as null result, the operation information of the power circuit includes：When specified
Between in section associate power circuit whether break down, the fault signature of the failure that the power circuit occurs includes：Faulty line
Title, time of fault inception.
The detecting terminal of feeder line fault independent positioning method of the invention, including sensor cluster, data acquisition components,
Data storage component, control assembly, GPS component, clock alignment component, communication component, the sensor group
Part, the physical quantity and and power line of power line short-circuit fault signature can be reflected for detecting described in detecting terminal installation place
The related physical quantity of road running status, including one or more of sensor：Magnetic field sensor, sound transducer, air pressure transmission
It is sensor, Kenneth Rogoff this lubber ring, visible image capturing head, fish eye lens camera, infrared camera, visible light sensor, infrared
Line sensor, UV sensor, also including the peripheral circuit of the sensor；The data acquisition components include following one kind
Or it is various：Analog quantity sample circuit, digital quantity acquiring circuit, data mutation Acquisition Circuit, the out-of-limit Acquisition Circuit of data, the whole world are defended
Data acquisition circuit when star position system location and time data Acquisition Circuit, GPS pair, the analog quantity
Sample circuit be used for gather the physical quantity that the sensor cluster is detected, by the sensor cluster detect it is simulation,
Continuous physical quantity is converted to numeral, discrete data, and the control assembly is used to control the operation of the detecting terminal, and
The collection of control data, the pretreatment of the data for collecting, the calibration of the clock of the detecting terminal, the storage of data, data
Remote transmission, the data storage component stores the data that the data acquisition components are collected.
The main website of feeder line fault independent positioning method of the invention, including data reception component, data storage component, number
According to processing assembly, man-machine interaction component；The data reception component is used to receive the data that detecting terminal transmission comes, the data
Storage assembly is used to store the data that the data reception component is received, and trouble point position is calculated for the data handling component
Put, enquiry of historical data, extract fault observer when use, the data handling component be used for calculate position of failure point, inquiry therefore
Barrier historical data, the man-machine interaction component is used for user's input control command, the operation information of input associate power circuit
And associate power circuit occur failure fault signature, detect failure occur when send alarm signal, display fault reference
The oscillogram and frequency spectrum profile of data, provide localization of fault result.
The alignment system of feeder line fault localization method of the invention, including multiple above-mentioned detecting terminals, one or many
Individual above-mentioned main website.
The beneficial effects of the invention are as follows：When localization method of the present invention is by detecting associate power line fault around wire
There is the time that ascending mutation determines associate power line failure in magnetic field intensity, filled up the detection of site layout project
Terminal cannot in real time, accurately obtain the technological gap of associate power line fault time, be the accurate fixed of feeder line fault point
Lay a good foundation position；The physical phenomenon of basic fixed position algorithm reference is sound, because the spread speed of sound is slow, therefore by system clock
The position error that error causes is small, and positioning precision is high；It is aided with other failures such as earth-fault current, atmospheric pressure, visible ray to show
As fault point position, the trouble point near electric power line pole tower can be accurately positioned, power circuit bar can be accurately positioned again
Trouble point between tower and shaft tower；Clock is calibrated using GPS, has unified the clock of different detecting terminals simultaneously
With extremely low time error, make each correlation detection end-probing to data there is the property of can refer to；Positioning effectively, it is accurate, can
By, practicality easy to spread, trouble point, analyzing failure cause, repairing electricity can be quickly and easily searched for operations staff, maintainer
Line of force road and operation maintenance etc. provide effective fault location, are fast quick-recovery after raising power circuit operational reliability and failure
Operation creates favorable conditions.The implementation of alignment system be capable of achieving to be not required to substantially failure line walking and can direct position residing for the localization of faults
Put, greatly speed up the lookup time of trouble point, improve trouble point and search success rate, save the manpower and thing searched spent by failure
Power resource, mitigates failure line walking intensity, realizes quick lookup trouble point, and eliminates failure in time, recovers power circuit operation, subtracts
Few power off time, ensures the safe and stable operation of power network, for the national economic development and social public order and normal production
Orders of life is extremely important.
Brief description of the drawings
Fig. 1 is the topology diagram of alignment system of the invention.
Specific embodiment
Further detailed description is done to the present invention below in conjunction with the accompanying drawings：
As shown in figure 1, the invention provides a kind of feeder line fault independent positioning method, detecting terminal, main website, alignment system,
It is installed on the detecting terminal for walking the related known position in footpath to power circuit and uses the power supply such as solar electric power supply system, uses electricity
The sensors such as stream, sound, shock wave, magnetic field, infrared ray, ultraviolet, visible ray, air pressure, detection can reflect that power line is short out
The supplemental characteristic of the physical quantity of road fault signature and the physical quantity related to power circuit running status, and electric power is recognized on the spot
Whether circuit is broken down and determines fault time, and detecting terminal will be detected after associate power line failure is identified
To positioning master station, positioning master station includes data reception component, data storage component, data handling component, people to the data transfer for arriving
The location of machine interactive component etc., data and the corresponding detecting terminal of data according to detecting terminal offer, using advance
The rule and algorithm of determination, are calculated the position of feeder line fault point, can be accurately positioned near electric power line pole tower
Trouble point, can be accurately positioned the trouble point between electric power line pole tower and shaft tower again, so as to realize feeder line fault it is timely,
It is accurately positioned, overcomes the shortcomings of fault location system in background technology.
Embodiment 1：A kind of feeder line fault independent positioning method of the invention, including：
Step one, multiple detecting terminals for walking the related known position in footpath to associate power circuit that are arranged on detect described known
The physical quantity that can reflect power line short-circuit fault signature and the physics related to power circuit running status at position
The supplemental characteristic of amount,
It is described to walk the related known location in footpath to power circuit and include：Position, upright projection on electric power line pole tower is in electric power
Position more than ground on line route or near path, it is able to detect that and described can reflects that power line short-circuit failure is special
The physical quantity and the other positions of the parameter of the physical quantity related to power circuit running status levied,
Generally detection device is installed on electric power line pole tower, and its title in host data base can be using corresponding
The title of electric power line pole tower so that fault location visual result, with user friendly, facilitate making for fault location data
With.
The physical quantity that power line short-circuit fault signature can be reflected and related to power circuit running status
Physical quantity includes：Magnetic field around power line lead, produced by power line lead ground connection or the arc discharge that causes of short circuit
Sound, the shock wave produced by power line lead ground connection or the arc discharge that causes of short circuit.
Operating power circuit due to the presence of electric current in wire, and three-phase conducting wire position dispersed distribution situation,
Can be in distance of wire certain distance（The order of magnitude of distance is rice）Interior to produce the detectable magnetic field for obtaining, its intensity is in micro- tesla
The order of magnitude；The arc discharge that power line lead is grounded or short circuit is caused can produce huge sound, also, arc discharge to send
This sound it is initial in an instant between be outwards to be propagated in the form of shock wave, after 0.1-0.3 seconds, shock wave is just developed
Into sound wave.
Step 2, the detecting terminal record the supplemental characteristic and the supplemental characteristic corresponding time；
There is ascending mutation in the magnetic field intensity that step 3, the detecting terminal will be detected around power line lead
Moment T0, carves at the beginning of being defined as associate power line failure；
When power circuit normally runs, the magnetic field intensity around power line lead is very low, once but power circuit be short-circuited
Or earth fault, because fault current is much larger than normal operating current, the magnetic field intensity around wire can suddenly increase by tens times
More than, and, the wire of whole piece power circuit, every place for flowing through fault current, the magnetic field around it can all occur so
Mutation, when indirect monitoring power circuit breaks down by measuring the mutation in this magnetic field, that is, determine associate power circuit
Carved at the beginning of breaking down, and every place for flowing through fault current, the detecting terminal that wire annex is installed can evidence
The time of failure of this monitoring power circuit, and this fault time is to obtain in real time, and this flutters for detecting terminal and catches
Fault signature physical quantity data are significant, and are the breakthroughs in a FLT principle.
So-called mutation refers to change or change suddenly drastically, it is preferable that the magnetic around power line lead described herein
Field intensity there is ascending mutation and be appointed as the magnetic field intensity within ten milliseconds of time to increase be original 5 times and more than.
Step 4, the detecting terminal extract fault reference data after T0, and the fault reference data include：Magnetic field is strong
Degree occurs in the time adjacent segments Δ t2 after time adjacent segments Δ t1 and T0 before time T0, T0 of ascending mutation
The physical quantity that can reflect power line short-circuit fault signature that detects and related to power circuit running status
The supplemental characteristic of physical quantity and its corresponding time, described in time period Δ t1 can reflect that power line short-circuit failure is special
The ginseng that the physical quantity and the data source of the physical quantity related to power circuit running status levied are recorded in step 2
Number data and its corresponding time, the time span of the Δ t1 and Δ t2 is previously given, and the Δ t1 is more than or waits
In zero second, the Δ t2 was more than zero second, and the length of Δ t1 and the length of Δ t2 are satisfied by localization of fault computing in step 6
Need；
For needing the physical quantity data of detection mutation, it is necessary to obtain the data of its certain period of time before T0, Δ t1 is more than
Zero second, it is preferable that Δ t1=1 second；For the data of other physical quantitys, it is preferable that Δ t1=0 second；Event is calculated to meet main website
The need for barrier point position, it is preferable that Δ t2=10 second；
The fault reference data transfer that step 5, the detecting terminal will be extracted in step 4 is to main website；
Detecting terminal is preferably used radio communication to master station transmission data, and radio communication is realized using prior art.
Step 6, main website are using the fault reference data transmitted in step 5, and detect the failure ginseng
The known location residing for the detecting terminal of data is examined, according to rule set in advance and algorithm process data, is drawn
The information of the position of failure point that power circuit breaks down, and/or, power circuit is carved at the beginning of breaking down.
Generally detecting terminal is installed on electric power line pole tower, and the abort situation that main website is calculated is with absolute position
Relative to the positional representation of electric power line pole tower such as on earth longitude and latitude or relative position such as power line lead path, and it is relative
Position is more suitable for the requirement in real work.
Rule set in advance and algorithm include described in step 6：Magnetic field intensity that detecting terminal is detected occur by
The small moment to big mutation carves at the beginning of being broken down as power circuit, the sound that detecting terminal is detected
The ascending mutation moment, and/or, the intensity of the sound is carved as feeder line fault point at the beginning of exceeding preset value
The sound that arc discharge sends reaches the moment of corresponding detecting terminal, according to sound, and/or, the aerial propagation of shock wave
The product that the time period T at the moment for reaching corresponding detecting terminal is carved to the sound at the beginning of speed V and the failure draws
Air line distance L between trouble point and the known installation site of corresponding detecting terminal, and according to associate power line route, calculate
The alternative trouble point gone out on associate power line conductor, and/or, the localization of faults will be detected according to multiple detecting terminals
To the described alternative trouble point that calculates of the fault reference data compare, position overlaps or relative distance is to fixed number
Described alternative trouble point in value is defined as the localization of faults of associate power line failure, and the localization of faults is this
The position of failure point of the positioning that method is finally obtained.
Preferably, the ascending mutation of the sound refers to that sound increases by 20 decibels in 20 milliseconds, it is preferable that described
The intensity of sound refers to the intensity of sound more than 80 decibels more than preset value.
The arc discharge that power line lead is grounded or short circuit is caused can produce huge sound, also, arc discharge to send out
This sound for going out it is initial in an instant between be outwards to be propagated in the form of shock wave, after 0.1-0.3 seconds, shock wave is just drilled
Become sound wave, therefore, carry out fault point using fault signature physical quantity sound, if above-mentioned time period T is shorter, preferably
Ground, T<0.15 second, then V should take the aerial spread speed of shock wave, it is preferable that V=5000m/second；If the above-mentioned time
T is long for section, it is preferable that T>0.15 second, then V the aerial spread speed of shock wave was taken within 0.15 second, it is preferable that
V=5000m/second, took the aerial spread speed of sound wave outside 0.15 second, it is preferable that the meter per seconds of V=334, thus, L=
5000m/the meter per second of second × 0.15 second+334 ×（T - 0.15）Second.
Position of failure point is calculated using the propagation characteristic of sound, if trouble point distance measurement terminal is near enough, it is preferable that
Distance is less than 10 meters, then be directly calculated the localization of faults, otherwise obtains alternative trouble point, is now accomplished by the multiple spies of comparing
The alternative trouble point of multiple that terminal is obtained is surveyed, wherein position overlaps or relative distance can in the alternative trouble point given in numerical value
To be defined as the localization of faults, it is preferable that given numerical value herein is 10 meters.
Rule set in advance and algorithm also include described in step 6：The magnetic field intensity that detecting terminal is detected occurs
The moment of ascending mutation carves at the beginning of being broken down as power circuit, the impact that detecting terminal is detected
Ripple when the detecting terminal installed position reaches peak overpressure, as the shock wave ripple that feeder line fault point sends
The preceding moment for reaching corresponding detecting terminal, according to carved at the beginning of the aerial spread speed V of shock wave and the failure to
The product that the shock wave wavefront reaches the time period T at the moment of corresponding detecting terminal draws trouble point with corresponding detecting terminal
Air line distance L between known installation site, and according to associate power line route, calculate positioned at associate power line conductor
On alternative trouble point, and/or, the localization of faults, the fault reference data meter that will be detected according to multiple detecting terminals
The described alternative trouble point for drawing compares, and the described alternative trouble point of position coincidence or relative distance in given numerical value is true
It is set to the localization of faults of associate power line failure, the localization of faults is the event of the positioning that this method is finally obtained
Barrier point position.
When shock front travels to space point, superpressure is referred to as more than the pressure of ambient atmosphere, locality
Superpressure maximum on a timeline is peak overpressure, therefore during shock wave arrival, the atmospheric pressure value of continuous measurement locality
And the peak overpressure that maximum therein can obtain the shock wave in the place is found out, peak overpressure is generally present in shock wave battle array
Face reaches the moment of the point, therefore by detecting that detecting terminal installed position reaches the moment of peak overpressure, just can detect electricity
The shock wave wavefront that power line fault point sends（That is shock front）Reach the moment of corresponding detecting terminal.
Shock wave is detected using baroceptor, the aerial spread speed of shock wave, it is preferable that take V=5000m/
Second.
Position of failure point is calculated using the propagation characteristic of shock wave, if trouble point distance measurement terminal is near enough, preferably
Ground, distance is less than 10 meters, then be directly calculated the localization of faults, otherwise obtains alternative trouble point, is now accomplished by comparing many
The alternative trouble point of multiple that individual detecting terminal is obtained, wherein position overlaps or relative distance is giving the alternative trouble point in numerical value
It is assured that to be the localization of faults, it is preferable that given numerical value herein is 10 meters.
Embodiment 2：On the basis of being positioned using embodiment 1, further other fault location also in the present embodiment
Method.
The physical quantity and the physics related to power circuit running status of power line short-circuit fault signature can be reflected
Amount also includes：Atmospheric pressure, flows through the earth current in electric power line pole tower Grounding, power line lead ground connection or short circuit
The visible ray produced by arc discharge for causing, and/or, infrared ray, and/or, ultraviolet.
Feeder line fault can produce strong arc discharge in trouble point, and the air in arc discharge path is violent suddenly
The gain of heat, makes up to 15000-20000 DEG C of its temperature, thus results in air and drastically expands, and the air pressure of passage proximate can increase to one
It is more than hundred atmospheric pressure.
Feeder line fault can produce strong arc discharge in trouble point, send visible ray, infrared ray, ultraviolet, visit
The characteristic for surveying these light can be used as the foundation of failure judgement generation, especially night, and effect is more prominent.
Rule set in advance and algorithm also include：By the visible ray in the fault reference data, and/or, infrared ray,
And/or, the video of ultra-violet bands, and/or, the arc that the power line lead ground connection that be recorded in static images or short circuit are caused
The position of light electric discharge is defined as the localization of faults of associate power line failure, and the localization of faults is last this method
The position of failure point of the positioning for obtaining.
Visible ray, infrared ray, the video of ultra-violet bands or static images can intuitively obtain the trouble point of power circuit.
Rule set in advance and algorithm also include：It is higher than by the barometric pressure data in the fault reference data
The installation site of the corresponding detecting terminal of set-point is defined as the alternative trouble point on associate power line conductor,
And/or, the localization of faults,
If only one of which detecting terminal detects barometric pressure data higher than set-point, the installation site of the detecting terminal is
The localization of faults is can be identified as, if multiple detecting terminals detect barometric pressure data higher than set-point, each detection is eventually
The installation site at end is alternative trouble point.Preferably, the set-point is 5 standard atmospheric pressures.
The barometric pressure data higher than set-point that multiple detecting terminals in the fault reference data are detected
Maximum compare, the detecting terminal in the barometric pressure data maximum corresponding to maximum barometric pressure data
The installation site localization of faults that is defined as on associate power line conductor, the localization of faults is that this method is finally obtained
Positioning position of failure point.
The predetermined rule and algorithm also include：Power circuit will be flowed through described in the fault reference data
The position of the associate power overhead line structures that the earth current in tower grounding passage exceedes set-point is defined as associate power circuit
Alternative trouble point, and/or, the localization of faults；
If Grounding when power circuit breaks down by overhead line structures is grounded, just had in overhead line structures Grounding
Very big earth current flows through, and detects the localization of faults by the earth current, and the position of trouble point is exactly the shaft tower.Due to
, can there is the less ground connection electricity of numeric ratio in the Grounding of normal operating electric power line pole tower in the presence of electromagnetic induction
Whether faulty earth current flows through in stream, therefore detection electric power line pole tower, must be requested that flow through electric power line pole tower ground connection
Earth current in passage is more than a set-point, it is preferable that this set-point selects 100 amperes.If only one of which is detected
End-probing exceedes set-point to the earth current in tower grounding passage, then the installation site of the detecting terminal is that can be identified as
The localization of faults, it is each to visit if the earth current that multiple detecting terminals are detected in tower grounding passage exceedes set-point
The installation site for surveying terminal is alternative trouble point.And the earth current in shaft tower Grounding is detected, the sensor for using is sieve
Lattice Paderewski coil.
Flowed through what multiple detecting terminals in fault reference data described in step 6 were detected more than described in set-point
Earth current data in electric power line pole tower Grounding compare, the related power circuit corresponding to maximum therein
The position of shaft tower is defined as the localization of faults of associate power circuit, and the localization of faults is the positioning that this method is finally obtained
Position of failure point.
For the power circuit for being provided with aerial earth wire, if wire connecing by overhead line structures when power circuit breaks down
Ground passage ground connection, just has earth current and flows through in overhead line structures Grounding, simultaneously because the shunting action of aerial earth wire, therefore
Also can simultaneously there is earth current to flow through in the Grounding of the barrier adjacent many base shaft towers of point, but its earth current amplitude than therefore
The earth current of the shaft tower at barrier point is small, so, the shaft tower of the earth current maximum flowed through in Grounding during failure, is exactly event
Barrier point whereabouts, the i.e. localization of faults.
Above-mentioned predetermined rule and algorithm also include：The operation information and phase of associate power circuit are provided by user
The fault signature of the failure that power circuit occurs is closed, is carved at the beginning of associate power line failure in positioning result and is in phase
(time period that the associate power circuit does not break down is not included within the time period that pass power circuit does not break down
The initial and end moment) fault location result be defined as null result, the operation information of the power circuit includes：It is determined that when
Between in section associate power circuit whether break down, the fault signature of the failure that the power circuit occurs includes：Faulty line
Title, time of fault inception.
Because detecting terminal is installed near power circuit, the electromagnetic environment of its work is more severe, meanwhile, power circuit
The magnetic field that the change of the method for operation is also resulted in around wire is undergone mutation, and various noises, light in environment etc. can also influence
The data that detecting terminal is detected, these factors are likely to causing trouble alignment system erroneous judgement power circuit and break down, from
And positioning result is exported, but actually power circuit does not break down, it is therefore desirable to fortune of the user according to power circuit
The fault signature of the failure that row information and power circuit occur excludes the positioning result that these do not break down originally.
Embodiment 3：Using detecting terminal, main website, the alignment system of feeder line fault independent positioning method of the invention.
Using the detecting terminal of feeder line fault independent positioning method of the invention, including sensor cluster, data acquisition
Component, data storage component, control assembly, GPS component, clock alignment component, communication component,
The sensor cluster, the thing of power line short-circuit fault signature can be reflected for detecting described in detecting terminal installation place
Reason amount and the physical quantity related to power circuit running status, including one or more of sensor：Magnetic field sensor, sound
Sound sensor, baroceptor, Kenneth Rogoff this lubber ring, visible image capturing head, fish eye lens camera, infrared camera, can
Optical sensor, infrared ray sensor, UV sensor are seen, also including the peripheral circuit of the sensor；
Sensor and its peripheral circuit are realized using prior art.
The data acquisition components include one or more of：Analog quantity sample circuit, digital quantity acquiring circuit, data
Mutation Acquisition Circuit, the out-of-limit Acquisition Circuit of data, GPS position and time data Acquisition Circuit, Global Satellite
Data acquisition circuit during alignment system pair,
Data acquisition components are realized using prior art.
All detecting terminals in fault location system use unified clock, the physics that different detecting terminals are detected
Amount parameter can just be calculated, compared, and realize the positioning of abort situation.
The use of GPS is that detecting terminal corrects clock, clock correction interval time is short, high precision, because when
Abort situation calculation error is small to negligible caused by clock error, can fully meet the requirement of fault location.
Using the position of GPS coordinate detection terminal installation place, and its position data is transferred to master
Stand, so that the installation site of detecting terminal is known location, the position of the detecting terminal installation place is fixed using Global Satellite
Position system positioning, its accurate positioning, error is small, therefore caused by abort situation calculation error it is small to negligible, can
Fully meet the requirement of fault location.
The analog quantity sample circuit is used to gather the physical quantity that the sensor cluster is detected, by the sensor group
Simulation, the continuous physical quantity that part is detected is converted to numeral, discrete data,
The sample frequency of analog quantity sample circuit is sufficiently high, and the digital quantity obtained to sample can reflect corresponding simulation
The feature of amount, according to sampling thheorem, sample frequency is greater than two times of analog quantity highest frequency, according to the physical quantity sampled
Different characteristic, different physical quantitys can use different sample frequencys, to reduce the storage required for storage digital data
Device space and the flow by wireless communication transmissions data.
Analog quantity sample circuit is realized using prior art.
The control assembly is used to controlling the operation of the detecting terminal, and the collection of control data, the data that collect
Pretreatment, the calibration of the clock of the detecting terminal, the storage of data, the remote transmission of data,
The data storage component stores the data that the data acquisition components are collected.
The data of data storage component storage are divided into the data and the long-term data for preserving of interim circulation storage, data storage
The memory of component is filled with after data the data of interim circulation storage earliest in then overlaying memory, recycles storage empty
Between.
Using the main website of feeder line fault independent positioning method of the invention, including data reception component, data storage group
Part, data handling component, man-machine interaction component；The data reception component is used to receive the data that detecting terminal transmission comes, institute
Data storage component is stated for storing the data that the data reception component is received, failure is calculated for the data handling component
Used when point position, enquiry of historical data, extraction fault observer, the data handling component is used to calculate position of failure point, look into
Malfunction history data is ask, the man-machine interaction component is used for user's input control command, the operation of input associate power circuit
The fault signature of the failure that information and associate power circuit occur, detect alarm signal, display failure are sent when failure occurs
The oscillogram and frequency spectrum profile of reference data, provide localization of fault result.
Using the alignment system of feeder line fault localization method of the invention, including multiple above-mentioned detecting terminals, one
Or multiple above-mentioned main websites.
One fault positioning system of power line is installed on the detection of the specific location related to power circuit by multiple
Terminal and a main website composition, a system can also include multiple main websites, and one of main website is used as primary, other main websites work
It is to back up, or multiple main websites backup each other, to improve the stability of system.
The above is only the preferred embodiment of this patent, it is noted that come for those skilled in the art
Say, on the premise of the art of this patent principle is not departed from, some improvement and replacement can also be made, these improve and replace also should
It is considered as the protection domain of this patent.
Claims (10)
1. a kind of feeder line fault independent positioning method, it is characterised in that including：
Step one, detect the known location installed in the detecting terminal that the related known position in footpath is walked to associate power circuit
The physical quantity and the physical quantity related to power circuit running status that power line short-circuit fault signature can be reflected at place
Supplemental characteristic, it is described to walk the related known location in footpath to power circuit and include：Position, upright projection on electric power line pole tower in
Position more than ground on power circuit path or near path, be able to detect that it is described can reflect power line short-circuit therefore
Hinder the other positions of the parameter of the physical quantity and the physical quantity related to power circuit running status of feature, it is described to reflect
The physical quantity of power line short-circuit fault signature and the physical quantity related to power circuit running status include：Power circuit is led
Magnetic field around line；
Step 2, the detecting terminal record the supplemental characteristic and the supplemental characteristic corresponding time；
There is ascending mutation in the magnetic field intensity that step 3, the detecting terminal will be detected around power line lead
Moment T0, carves at the beginning of being defined as associate power line failure；
Step 4, the detecting terminal extract fault reference data after T0, and the fault reference data include：Magnetic field intensity is sent out
Detection in the time adjacent segments Δ t2 after time adjacent segments Δ t1 and T0 before time T0, T0 of the ascending mutation of life
To the physical quantity that can reflect power line short-circuit fault signature and the physics related to power circuit running status
The supplemental characteristic of amount and its corresponding time, described in time period Δ t1 can reflect power line short-circuit fault signature
The parameter number that the data source of physical quantity and the physical quantity related to power circuit running status is recorded in step 2
According to and its corresponding time, the time span of the Δ t1 and Δ t2 is previously given, and the Δ t1 is more than or equal to zero
Second, the Δ t2 is more than zero second, and the length of Δ t1 and the length of Δ t2 are satisfied by step 6 the need for localization of fault computing；
The fault reference data transfer that step 5, the detecting terminal will be extracted in step 4 is to main website；
Step 6, main website are using the fault reference data transmitted in step 5, and detect the fault reference number
According to the detecting terminal residing for the known location, according to it is set in advance rule and algorithm process data, draw electric power
The information of the position of failure point of line failure, and/or, power circuit is carved at the beginning of breaking down.
2. feeder line fault independent positioning method according to claim 1, it is characterised in that：
Can reflect described in step one power line short-circuit fault signature physical quantity and with power circuit running status phase
The physical quantity of pass also includes：The sound produced by arc discharge that power line lead is grounded or short circuit is caused；
With,
The rule set in advance and algorithm include：There is ascending mutation in the magnetic field intensity that detecting terminal is detected
Moment broken down as power circuit at the beginning of carve, the sound that detecting terminal is detected it is ascending prominent
Become the moment, and/or, the intensity of the sound is carved at the beginning of exceeding preset value and sent as feeder line fault point arc discharge
Sound reach moment of corresponding detecting terminal, according to sound, and/or, the aerial spread speed V of shock wave and it is described therefore
The product that the time period T at the moment for reaching corresponding detecting terminal is carved to the sound at the beginning of barrier draws trouble point with corresponding spy
The air line distance L surveyed between the known installation site of terminal, and according to associate power line route, calculate positioned at associate power
Alternative trouble point on line conductor, and/or, the localization of faults, the failure ginseng that will be detected according to multiple detecting terminals
Examine the described alternative trouble point that data calculate to compare, position overlaps or relative distance is described alternative in given numerical value
Trouble point is defined as the localization of faults of associate power line failure, and the localization of faults is what this method was finally obtained
The position of failure point of positioning.
3. feeder line fault independent positioning method according to claim 1, it is characterised in that：
Can reflect described in step one power line short-circuit fault signature physical quantity and with power circuit running status phase
The physical quantity of pass also includes：The shock wave produced by arc discharge that power line lead is grounded or short circuit is caused；
With,
The rule set in advance and algorithm also include：There is ascending dashing forward in the magnetic field intensity that detecting terminal is detected
The moment of change carves at the beginning of being broken down as power circuit, and the shock wave that detecting terminal is detected is in the detection
Terminal installed position reaches the moment of peak overpressure, and the shock wave wavefront sent as feeder line fault point reaches corresponding spy
The moment of terminal is surveyed, according to being carved to the shock wave ripple at the beginning of the aerial spread speed V of shock wave and the failure
The product of the time period T at the preceding moment for reaching corresponding detecting terminal draws the known installation site of trouble point and corresponding detecting terminal
Between air line distance L, and according to associate power line route, calculate the alternative failure on associate power line conductor
Point, and/or, the localization of faults, the fault reference data detected according to multiple detecting terminals are calculated described in
Alternative trouble point compares, and position overlaps or relative distance is defined as associate power in the described alternative trouble point given in numerical value
The localization of faults of line failure, the localization of faults is the position of failure point of the positioning that this method is finally obtained.
4. feeder line fault independent positioning method according to claim 1, it is characterised in that：
Can reflect described in step one power line short-circuit fault signature physical quantity and with power circuit running status phase
The physical quantity of pass also includes：The visible ray produced by arc discharge that power line lead is grounded or short circuit is caused, and/or, it is red
Outside line, and/or, ultraviolet；
With,
The rule set in advance and algorithm also include：By the visible ray in the fault reference data, and/or, infrared ray,
And/or, the video of ultra-violet bands, and/or, the arc that the power line lead ground connection that be recorded in static images or short circuit are caused
The position of light electric discharge is defined as the localization of faults of associate power line failure, and the localization of faults is last this method
The position of failure point of the positioning for obtaining.
5. feeder line fault independent positioning method according to claim 1, it is characterised in that：
Can reflect described in step one power line short-circuit fault signature physical quantity and with power circuit running status phase
The physical quantity of pass also includes：Atmospheric pressure；
With,
The rule set in advance and algorithm also include：It is higher than by the barometric pressure data in the fault reference data
The installation site of the corresponding detecting terminal of set-point is defined as the alternative trouble point on associate power line conductor,
And/or, the localization of faults,
With,
The barometric pressure data higher than set-point that multiple detecting terminals in the fault reference data are detected is most
Big value compares, the peace of the detecting terminal in the barometric pressure data maximum corresponding to maximum barometric pressure data
Holding position is defined as the localization of faults on associate power line conductor, and the localization of faults is determining of finally obtaining of this method
The position of failure point of position.
6. feeder line fault independent positioning method according to claim 1, it is characterised in that：
Can reflect described in step one power line short-circuit fault signature physical quantity and with power circuit running status phase
The physical quantity of pass also includes：Flow through the earth current in electric power line pole tower Grounding；
With,
The predetermined rule and algorithm also include：Electric power line pole tower will be flowed through described in the fault reference data
The position of the associate power overhead line structures that the earth current in Grounding exceedes set-point is defined as the standby of associate power circuit
Trouble point is selected, and/or, the localization of faults；
With,
By multiple detecting terminal in the fault reference data detect more than flowing through electric power line pole tower described in set-point
Earth current data in Grounding compare, and the position of the related electric power line pole tower corresponding to maximum therein is true
It is set to the localization of faults of associate power circuit, the localization of faults is the trouble point position of the positioning that this method is finally obtained
Put.
7. the feeder line fault independent positioning method according to claim any one of 1-6, it is characterised in that：
The predetermined rule and algorithm also include：The operation information of associate power circuit and mutually powered-down is provided by user
The fault signature of the failure that line of force road occurs, carves in mutually powered-down in positioning result at the beginning of associate power line failure
(the initial and end of the time period do not broken down not comprising the associate power circuit within the time period that line of force road is not broken down
Moment) fault location result be defined as null result, the operation information of the power circuit includes：Within the specified time period
Whether associate power circuit breaks down, and the fault signature of the failure that the power circuit occurs includes：Faulty line title, event
The barrier time started.
8. the detecting terminal of feeder line fault independent positioning method described in a kind of use claim any one of 1-7,
It is characterized in that：Including：Sensor cluster, data acquisition components, data storage component, control assembly, Global Satellite are fixed
Position system component, clock alignment component, communication component, the sensor cluster, for detecting energy described in detecting terminal installation place
Enough reflect the physical quantity and the physical quantity related to power circuit running status of power line short-circuit fault signature, including it is following
One or more sensor：Magnetic field sensor, sound transducer, baroceptor, Kenneth Rogoff this lubber ring, visible image capturing
Head, fish eye lens camera, infrared camera, visible light sensor, infrared ray sensor, UV sensor, also including institute
State the peripheral circuit of sensor；The data acquisition components include one or more of：Analog quantity sample circuit, digital quantity are adopted
Collector, data mutation Acquisition Circuit, the out-of-limit Acquisition Circuit of data, GPS position and time data collection electricity
Data acquisition circuit when road, GPS pair, the analog quantity sample circuit is used to gather the sensor cluster
The physical quantity for detecting, simulation, the continuous physical quantity that the sensor cluster is detected is converted to numeral, discrete
Data, the control assembly is used to controlling the operation of the detecting terminal, and the collection of control data, collect data it is pre-
Treatment, the calibration of the clock of the detecting terminal, the storage of data, the remote transmission of data, the data storage component storage
The data that the data acquisition components are collected.
9. a kind of main website of feeder line fault independent positioning method described in use claim any one of 1-7, it is characterised in that bag
Include data reception component, data storage component, data handling component, man-machine interaction component；The data reception component is used to connect
The data that detecting terminal transmission comes are received, the data storage component is used to store the data that the data reception component is received,
Used when calculating position of failure point, enquiry of historical data, extract fault observer for the data handling component, the data processing
Component is used to calculate position of failure point, inquiry malfunction history data, and the man-machine interaction component is used for user's input control life
Make, be input into the fault signature of the failure of operation information and associate power the circuit generation of associate power circuit, detect failure hair
Alarm signal, the oscillogram of display fault reference data and frequency spectrum profile are sent when raw, localization of fault result is given.
10. a kind of alignment system of feeder line fault localization method described in use claim any one of 1-7, its feature exists
In, including：Multiple detecting terminal, one or more main websites as claimed in claim 9 as claimed in claim 8.
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Application publication date: 20170616 |