CN107045094A - A kind of distribution line failure localization method and device - Google Patents
A kind of distribution line failure localization method and device Download PDFInfo
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- CN107045094A CN107045094A CN201710275341.3A CN201710275341A CN107045094A CN 107045094 A CN107045094 A CN 107045094A CN 201710275341 A CN201710275341 A CN 201710275341A CN 107045094 A CN107045094 A CN 107045094A
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- remote signalling
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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
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
This application discloses a kind of distribution line failure localization method and device, the remote signalling data that in the current preset cycle and upper predetermined period internal fault indicator is sent is obtained；According to the logical place of all fault detectors, complete sequence is determined；According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Further according to complete sequence and action sequence, fullpath sequence is obtained, and then determine location of fault, failure occur on distribution line time, the type of failure and the fault detector failed to report.The method and device that the embodiment of the present application is provided, according to the logical place of fault detector to fault location, and the other information of failure can also be determined, improve fault message automated analysis level and analysis efficiency, the quick positioning of distribution line failure is realized, facilitates staff to investigate failure, trouble point can be rapidly and accurately found, electric network fault emergency repair time is saved, power supplying efficiency is improved.
Description
Technical field
The application is related to technical field of electric power communication, more particularly to a kind of distribution line failure localization method and device.
Background technology
At present both at home and abroad all in positive planning, construction intelligent grid, the core connotation of intelligent grid is to realize the letter of power network
Breathization and automation.The basis for realizing intelligent grid is that the data on power network are carried out with comprehensive monitoring and is transmitted, and is counted with these
According to management power network and the Automated condtrol for realizing power network.Pass through advanced sensing and e measurement technology, control technology and decision-making branch
Systems technology is held, the interactive intercommunication of generating, transmission of electricity, distribution and electricity consumption can be made, turning into power network can test oneself to power network real-time management
With the intelligent grid of self-healing, realize more wisdom power supply and dispatching, make power network use it is relatively reliable with it is safe.
Distribution line is monitored to it as part important in power network, ensures that its normal operation is also weight
Want, once because distribution line breaks down, cause to have a power failure, while being made troubles to Electricity customers, return electric company
Cause heavy losses.Due to power network distribution line long transmission distance, physical features is complicated on the way, natural environment and climate inclement condition, then adds
Upper power supply pressure is big, causes fault rate significantly to raise.At present, domestic and international Duo Jia power grid enterprises use fault detector to power network
Failure in distribution line is monitored, and fault detector is the equipment for detecting short circuit and earth fault, the letter detected
Breath notifies maintenance personal in remote signalling data form, and maintenance personal manually confirms the state of fault detector, finds generation one by one again
Fault section is opened in the section of failure and disjunction, carries out the maintenance of distribution line.Remote signalling data is for transmitting fault detector
The data of running status, it includes the information of distribution line residing for the information and fault detector of fault detector.
However, the distance of distribution line is longer, branch is again more, in network structure, is mounted with substantial amounts of fault detector.When
After being broken down on distribution line, the failure on fault detector and branch before corresponding fault detector, trouble point refers to
Show that device all can regularly send out remote signalling data, and these data are also not necessarily accurate.Staff is according to the event of these data pair
When barrier is investigated, it is difficult to determine the time that fault detector sends remote signalling data, can also wastes substantial amounts of time check each
The state of the fault detector acted, and once break down and will stop power supply, the time of inspection is more long, restores electricity
Time it is also longer, the efficiency of power supply is lower.
The content of the invention
This application provides a kind of distribution line failure localization method and device, to solve power network distribution line failure point not
Easily determine and staff investigates the problem of scope is big, improve power supplying efficiency, save maintenance time.
On the one hand, this application provides a kind of distribution line failure localization method, this method includes：
Mark and store logical place of the fault detector in distribution line；
According to the logical place, obtain what is sent in the current preset cycle with upper predetermined period internal fault indicator
Remote signalling data；
According to the logical place of all fault detectors, complete sequence is determined；
According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；
According to the complete sequence and the action sequence, fullpath sequence is obtained；
According to the fullpath sequence and the remote signalling data, it is determined that the logical bit of the fault detector closest to failure
Put, the failure on positioning distribution line.
Optionally, the remote signalling action message is included in the remote signalling data for the fault detector transmission for producing remote signalling action；
The remote signalling action message includes：The time that circuit, the type of remote signalling action and the remote signalling action that remote signalling action occurs occur；
According to the logical place of all fault detectors, before determining complete sequence, including：
Judge to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical bit of all fault detectors
Put, determine complete sequence.
Optionally, this method also includes：
According to the fullpath sequence and the action sequence, it is determined that the fault detector failed to report.
Optionally, this method also includes：
According to the remote signalling data, determine occur the remote signalling action on the current line under each phase of fault detector
Number of times；The type of the remote signalling action includes：Ground connection and short circuit；
According to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined；
According to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined.
Optionally, according to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined, including：
The numerical value that short-circuit remote signalling action frequency occurs under three-phase is contrasted, three numerical value are arranged from big to small, the is followed successively by
One numerical value, second value and third value；
If three numerical value are not mutually equal, it is determined that failure is first numerical value and the corresponding two-phase of the second value
Short trouble；
If first numerical value and the second value are equal, it is determined that failure is first numerical value and described second
The corresponding two-phase short-circuit fault of numerical value；
If the second value and third value is equal or three numerical value are equal, it is determined that the failure is total
Short trouble.
Optionally, according to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined, including：
Contrast three-phase occur ground connection remote signalling action frequency numerical value, numerical value is arranged from big to small, be followed successively by the first numerical value,
Second value and third value；
If three numerical value are not mutually equal, it is determined that the failure is the corresponding phase earth fault of first numerical value；
If the first numerical value and second value is equal or three numerical value are equal, it is determined that the failure is total
Earth fault.
Optionally, after determining that failure on distribution line is earth fault, in addition to：
The switching action message of the signal source under current transformer substation is obtained, the signal source of the earth fault is marked and store
Switching action message.
On the other hand, present invention also provides a kind of distribution line failure positioner, the device includes：
Indicator mark unit, for marking and storing logical place of the fault detector in distribution line；
Data capture unit, for according to the logical place, with a upper predetermined period in the acquisition current preset cycle
The remote signalling data that internal fault indicator is sent；
Failure location unit, is used for：
According to the logical place of all fault detectors, complete sequence is determined；
According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；
According to the complete sequence and the action sequence, fullpath sequence is obtained；
According to the fullpath sequence and the remote signalling data, it is determined that the logical bit of the fault detector closest to failure
Put, the failure on positioning distribution line.
Optionally, the device also includes：
Judging unit, for judging to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical bit of all fault detectors
Put, determine complete sequence.
Optionally, the device also includes：
Information flag unit, the switching action message for obtaining the signal source under current transformer substation marks and stores institute
State the signal source switching action message of earth fault.
From above technical scheme, the application provides a kind of distribution line failure localization method and device, obtains current
The remote signalling data sent in predetermined period with upper predetermined period internal fault indicator；According to the logic of all fault detectors
Position, determines complete sequence；According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Further according to
Complete sequence and action sequence, obtain fullpath sequence；Finally according to fullpath sequence, action sequence, remote signalling data and
Remote signalling action message, determines that time, the type of failure and the failure failed to report that location of fault on distribution line, failure occur refer to
Show device.The method and device that the embodiment of the present application is provided, according to the logical place of fault detector to fault location, and may be used also
To determine the other information of failure, fault message automated analysis level and analysis efficiency are improved, distribution line failure is realized
Quick positioning, facilitates staff to investigate failure, can rapidly and accurately find trouble point, saves electric network fault repairing
Time, improve power supplying efficiency.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, the required accompanying drawing used in case study on implementation will be made below
Simply introduce, it should be apparent that, for those of ordinary skills, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of flow chart for distribution line failure localization method that Fig. 1 provides for the embodiment of the present application；
Fig. 2 is the distributed architecture figure of fault detector on circuit 1 in the embodiment of the present application one；
Fig. 3 is the distributed architecture figure of fault detector on circuit 2 in the embodiment of the present application one；
A kind of structure chart for distribution line failure positioner that Fig. 4 provides for the embodiment of the present application.
Illustrate：
Wherein, 1- " 9 " number fault detector；2- " 27- " number fault detector；3- " 27 " number bar；4- " 33 " number failure refers to
Show device；5- " 60 " number fault detector；6- " 69 " number fault detector；7- " 27.1 " number fault detector；8- " 1 " number failure refers to
Show device；9- " 21 " number bar；10- " 21+ " number fault detector；11- " 46 " number fault detector；12- " 77 " number fault detector；
13- " 21.1- " number fault detector；14- " 21.1 " number bar；15- " 21.1.10 " number fault detector；16- indicator mark lists
Member；17- data capture units；18- judging units；19- failure location units；20- information flag units.
Embodiment
Referring to Fig. 1, a kind of flow chart of the distribution line failure localization method provided for the embodiment of the present application.Methods described
Including：
Step 100, mark and store logical place of the fault detector in distribution line.
Step 200, according to the logical place, obtain in the current preset cycle and a upper predetermined period internal fault is indicated
The remote signalling data that device is sent.
Remote signalling data is that the data that fault detector is periodically sent out, i.e. fault detector send distant according to certain cycle
Letter data, all fault detectors in the range of receiving can send remote signalling data, if be needed using the remote signalling data
By judging that not all remote signalling data is all reliable with screening.When respective branch correspondence on the circuit for needing to position
Same class failure, when only one of which fault detector is acted, whether failure judgement indicator is first, second or the 3rd
Put, when fault detector is in first, second or three positions, can be determined using the remote signalling data of fault detector
Position, otherwise it is assumed that the data that fault detector is sent are inaccurate, without positioning.
To before fault location, it is necessary to first obtain fault detector on the remote signalling data that sends of fault detector, circuit
Quantity is a lot, then the time for receiving the remote signalling data that these fault detectors are sent will be very long, if to all remote signalling numbers
According to being received, it is necessary to be taken a lot of time.Predetermined period is set, be may be received in the respective lines in this time range
Remote signalling data, it is to avoid overabundance of data is lost time, and distant fault detector can also be avoided to send inexact data
The problem of influence is produced on positioning result.And in predetermined period, the data that each fault detector is sent only are received,
Avoid repeatedly judging a fault detector, save the time, increase the accurate qualitative of fault location.
Step 300, according to the logical place of all fault detectors, complete sequence is determined；Each logical place generation
An element in table complete sequence.
Step 400, according to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Each is patrolled
Volume position all represents an element in action sequence.
Step 500, according to the complete sequence and the action sequence, fullpath sequence is obtained.
Step 600, according to the fullpath sequence and the remote signalling data, it is determined that closest to the fault detector of failure
Logical place, positioning distribution line on failure.
From above technical scheme, the application provides a kind of distribution line failure localization method, obtains current preset week
The remote signalling data sent in phase with upper predetermined period internal fault indicator；According to the logical place of all fault detectors,
Determine complete sequence；According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Further according to complete sequence
Row and action sequence, obtain fullpath sequence；It is dynamic finally according to fullpath sequence, action sequence, remote signalling data and remote signalling
Make information, determine location of fault on distribution line.The method that the embodiment of the present application is provided, according to the logical bit of fault detector
Put to fault location, and the other information of failure can also be determined, improve fault message automated analysis level and analysis is imitated
Rate, realizes the quick positioning of distribution line failure, facilitates staff to investigate failure, can rapidly and accurately find event
Hinder point, save electric network fault emergency repair time, improve power supplying efficiency.
The remote signalling action message is included in the remote signalling data for the fault detector transmission for producing remote signalling action；The remote signalling
Action message includes：The time that circuit, the type of remote signalling action and the remote signalling action that remote signalling action occurs occur.
Optionally, in step 300, according to the logical place of all fault detectors, determine before complete sequence, wrap
Include：
Judge to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical bit of all fault detectors
Put, determine complete sequence.
Judge to whether there is remote signalling action message in remote signalling data, the time of fault location can be greatly shortened, work as judgement
When going out in remote signalling data in the absence of remote signalling action message, the operation of positioning is just terminated at once, it is to avoid to not having faulty circuit to determine
Position, saves the time, improves the efficiency of fault location.
Optionally, this method also includes：
According to the fullpath sequence and the action sequence, it is determined that the fault detector failed to report.It is determined that the event failed to report
Hinder indicator and provide reference to later fault location.
Further, it is determined that, it is necessary to first by the logical place of fault detector permutation with positive order by size during action sequence.
Plurality is represented with "+" number and without the numeral of symbol behind logical place, is arranged in after branch line data；Logical place
The numeral with "-" number is represented compared with decimal below, is arranged in before branch line data.For example：" xx.yy " and " xx.yy+ " is arranged in
After " xx.yy.* ", " xx.yy- " is arranged in before " xx.yy.* ", wherein " xx.yy.* " represents branch line data.Then basis
Corresponding fault detector inverted order is found, and whether failure judgement indicator is then record position, otherwise continues to seek in same path
Judgement is looked for, terminates to judge when first fault detector.The position for all fault detectors recorded in the process
Form a fullpath sequence deduced forward since being found point.Fullpath sequence is compared with action sequence, can be with
Quickly and easily determine the fault detector failed to report.
Optionally, this method includes：Respectively to the fault location in predetermined period on different circuits；Failure on circuit can
One kind can be only existed, it is also possible to which, while existing a variety of, and the branch of distribution line is numerous, and the fault type in different branches is also
Different.Ensure the normal operation of distribution line, it is necessary to be monitored to the fault detector on all circuits, on all circuits
Fault location, it is ensured that the reliability of power supply.
Optionally, this method also includes：
The remote signalling action message in the remote signalling data, determines the time that the failure occurs.Remote signalling is acted
Information includes the time that remote signalling action occurs, i.e., the time that failure occurs, the time that failure occurs determines position predetermined period
In time range, the earliest time of all fault detector actions on same circuit.After being positioned to location of fault, then determine hair
The raw time, staff can be more accurately pointed out, facilitate staff to fault location and repair.
Optionally, this method also includes：
According to the remote signalling data, determine occur the remote signalling action on the current line under each phase of fault detector
Number of times；The type of the remote signalling action includes：Ground connection and short circuit；
According to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined；
According to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined.
Different type location of fault is further determined that, failure can be more accurately positioned, staff's investigation is saved
Time, also reduce power-off maintenance time, it is ensured that distribution line Effec-tive Function.
Optionally, according to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined, including：
The numerical value that short-circuit remote signalling action frequency occurs under three-phase is contrasted, three numerical value are arranged from big to small, the is followed successively by
One numerical value, second value and third value；
If three numerical value are not mutually equal, it is determined that failure is first numerical value and the corresponding two-phase of the second value
Short trouble；
If first numerical value and the second value are equal, it is determined that failure is first numerical value and described second
The corresponding two-phase short-circuit fault of numerical value；
If the second value and third value is equal or three numerical value are equal, it is determined that the failure is total
Short trouble.
For example, in the present embodiment, A phases, B phases and C phases can be named as by the three-phase separate of fault detector is other；
The type of remote signalling action is divided into ground connection and short circuit, then corresponding fault type is also earth fault and short circuit event
Barrier.When occurring short trouble, the separate of short trouble is also determined whether, such as the short circuit of AB phases, the short-circuit and total short circuit of BC phases
Deng.The judgement of short trouble, by contrasting each separate lower number of times for occurring short-circuit remote signalling action.Such as, occur under each phase short
The number of times of road remote signalling action is followed successively by：A phases x times, B phases y times, C phases z times；Work as x>y>During z, it is determined that for the short circuit of AB phases；Work as x=y
>During z, it is determined that for the short circuit of AB phases；Work as x>During y=z, it is determined that for total short circuit；As x=y=z, then equally it is defined as total short
Road；Work as x>When 0, y=z=0, it is determined that be fault detector malfunction.
Optionally, according to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined, including：
Contrast three-phase occur ground connection remote signalling action frequency numerical value, numerical value is arranged from big to small, be followed successively by the first numerical value,
Second value and third value；
If three numerical value are not mutually equal, it is determined that the failure is the corresponding phase earth fault of first numerical value；
If the first numerical value and second value is equal or three numerical value are equal, it is determined that the failure is total
Earth fault.
For example, in the present embodiment, A phases, B phases and C phases can be named as by the three-phase separate of fault detector is other；Each phase
The not lower number of times for occurring ground connection remote signalling action is followed successively by：A phases x times, B phases y times, C phases z times；Work as x>Y and x>During z, it is determined that be A
Mutually it is grounded；Work as x=y>During z, it is determined that for total ground connection；As x=y=z, equally it is defined as total ground connection；Work as x>0, y=z=0
When, it is determined that it is fault detector malfunction.
Optionally, divide when fault location exists after circuit or the end of branch, and the fault detector of action
Zhi Shi, determines that failure occurs after last action failure indicator of circuit or branch, otherwise determines failure
Between last action failure indicator and next fault detector.
Further, when carrying out fault location, in addition it is also necessary to which whether failure judgement indicator is on same path.For example,
Judge two fault detectors whether in same path：First, by the logical place of the larger failure of logical place, deleted from end
Numeral except a decimal point and below starts, and last decimal point and numeral below is deleted successively, until without decimal point
Untill, the logical place combination obtained every time obtains an array.Such as logical place is xx.yy.zz.mm, and the array of formation is
{ xx.yy.zz, xx.yy, xx }.Then the logical place with the less fault detector of logical place is compared, when less logic
When position does not contain decimal point, directly it is judged as；Two fault detectors are in same path；When less logical place contain it is small
At several, delete after decimal point and numeral below with the element ratio in array compared with during equal to one of element, being judged as
Two fault detectors are in same path, and otherwise two fault detectors are not or not same path.This method can be intuitively simple
Judge the path where fault detector in ground.
Optionally, after determining that failure on distribution line is earth fault, in addition to：
The switching action message of the signal source under current transformer substation is obtained, the signal source of the earth fault is marked and store
Switching action message.
Further, when failure is earth fault, the signal source under inquiry current transformer substation whether there is switching action message,
The scope of inquiry is previous predetermined period, if there is the signal source switching action mark of switching action message, then fault message
It is designated as "Yes"；If there is signal source under current transformer substation but be not detected by switching action message, the signal source of fault message
Switching action mark is "No"；If signal source is not present under current transformer substation, the signal source switching action mark of fault message
It is designated as in " no signal source ".The fault message of the transformer station in no signal source, and the transformer station for having signal source but being acted without switching
Fault message, because the data precision for positioning is not high, so only being stored, warning information prompting is not done, after being only
Continuous analysis failure provides reference, and there is the fault message of signal source switching action message, and positioning result is more accurate, in storage
Warning information is formed while location data, the fast quick-recovery to earth fault provides guidance.
Referring to Fig. 4, a kind of structure chart of the distribution line failure positioner provided for the embodiment of the present application.The device bag
Include：
Indicator mark unit 16, for marking and storing logical place of the fault detector in distribution line；
Data capture unit 17, it is default all with upper one in the current preset cycle for according to the logical place, obtaining
The remote signalling data that phase internal fault indicator is sent；
Failure location unit 19, is used for：
According to the logical place of all fault detectors, complete sequence is determined；
According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；
According to the complete sequence and the action sequence, fullpath sequence is obtained；
According to the fullpath sequence and the remote signalling data, it is determined that the logical bit of the fault detector closest to failure
Put, the failure on positioning distribution line.
Optionally, the device also includes：
Judging unit 18, for judging to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical bit of all fault detectors
Put, determine complete sequence.
Further, judging unit 18 is additionally operable to：
According to the fullpath sequence and the action sequence, it is determined that the fault detector failed to report；
According to the remote signalling data, determine occur the remote signalling action on the current line under each phase of fault detector
Number of times；
According to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined；
According to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined.
Optionally, the device also includes：
Information flag unit 20, the switching action message for obtaining the signal source under current transformer substation, marks and stores
The signal source switching action message of the earth fault.
From above technical scheme, the embodiment of the present application provides a kind of distribution line positioner, including：Indicator mark
Remember unit 16, data capture unit 17, judging unit 18, failure location unit 19 and information flag unit 20；Obtain current pre-
If the remote signalling data sent in the cycle with upper predetermined period internal fault indicator；According to the logical bit of all fault detectors
Put, determine complete sequence；According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Further according to complete
Whole sequence and action sequence, obtain fullpath sequence；Finally according to fullpath sequence, action sequence, remote signalling data and distant
Believe action message, determine location of fault on distribution line.The device that the embodiment of the present application is provided, according to patrolling for fault detector
Position is collected to fault location, and the other information of failure can also be determined, fault message automated analysis level is improved and divides
Efficiency is analysed, the quick positioning of distribution line failure is realized, facilitates staff to investigate failure, can rapidly and accurately look for
To trouble point, electric network fault emergency repair time is saved, power supplying efficiency is improved.
Embodiment one
The present embodiment mainly lists the situation of the failure occurred on two lines road, the remote signalling action message of fault detector
It is as shown in table 1 below：
The fault detector remote signalling action message table of table 1
Predetermined period is defined as 10 minutes in the present embodiment one.Respectively simultaneously to the earth fault of circuit 1, the short circuit event of circuit 2
Barrier and the positioning of the short trouble of circuit 1：1st, obtain one by one 13:44:05 to 13:54:05 time range internal fault indicator hair
The remote signalling data sent, to 13:54:The Earth design of circuit 1, and timing acquiring 13 are performed when 05:44:05 to 13:54:05
All earth fault remote signalling action messages on circuit 1 in time range；2nd, obtain one by one 13:45:11 to 13:55:11 when
Between in the range of fault detector send remote signalling data, to 13:55:The positioning of the short trouble of circuit 2, and timing acquiring are performed when 11
13:45:11 to 13:55:All short trouble remote signalling action messages on circuit 2 in 11 time range；3rd, obtain one by one 13:
46:33 to 13:56:The remote signalling data that 33 time range internal fault indicator is sent, to 13:56:The short circuit of circuit 1 is performed when 33
Fault location, and timing acquiring 13:46:33 to 13:56:All short trouble remote signalling actions on circuit 1 in 33 time range
Information.
The position fixing process of the earth fault of circuit 1 is specific as follows：
13:54:The Earth design of circuit 1 is performed when 05, the upper predetermined period ground connection remote signalling of 10 minutes is obtained
Action message, obtains result as shown in table 2：
The circuit 1 of table 2 is grounded remote signalling action message
The distributed architecture of fault detector on circuit 1 is illustrated in figure 2, by patrolling for fault detector all on circuit 1
Name placement is collected, obtained complete sequence is：{ 9,27-, 27.1,33,60,69 }, by the logic of the fault detector acted
Name placement, obtained action sequence is：{ 9,27-, 27.1 }.Through judging, the fault detector acted is in same path, so
Fullpath sequence is searched out in complete sequence { 9,27-, 27.1,33,60,69 } afterwards for { 9,27-, 27.1 }.Can by table 2
Know, during this period of time, the number of times for occurring earth fault is 1 time, further can determine whether to be out of order in " 27.1 " number indicating fault
After device；Because action sequence is consistent with fullpath sequence, so in position fixing process, in the absence of the fault detector failed to report；
As shown in Table 2, all types of separate lower number of times for occurring remote signalling action are followed successively by：A phases 3 times, B phases 1 time, C phases 0 time, so this
Failure is A phase earth faults, and occurs 44 points and 05 second at 13.In summary judgement, the conclusion drawn is：Circuit 1 exists
44 points of 05 second generation A phase earth faults when 13 of " 27.1 " number fault detector.
The position fixing process of the short trouble of circuit 2 is specific as follows：
13:55:The positioning of the short trouble of circuit 2 is performed when 11, a upper predetermined period short-circuit remote signalling of 10 minutes is obtained
Action message, obtains result as shown in table 3：
The short-circuit remote signalling action message of 3 circuit of table 2
The distributed architecture of fault detector on circuit 2 is illustrated in figure 3, by patrolling for fault detector all on circuit 2
Name placement is collected, obtained complete sequence is：{ 1,21.1,21.1.10,21+, 46,77 }, by the fault detector acted
Logical place sorts, and obtained action sequence is：{1,21.1,21.1.10,46}.Through judge, { Isosorbide-5-Nitrae 6 } and 1,21.1,
21.1.10 it is } two different paths.
Judge { Isosorbide-5-Nitrae 6 } path first, by the largest logical position in { Isosorbide-5-Nitrae 6 } path, complete sequence 1,21.1,
21.1.10,21+, 46,77 } in search out fullpath sequence for { 1,21+, 46 }, thus can determine that failure occurs in " 46 " number
Between fault detector and " 77 " number fault detector.Due to action sequence { Isosorbide-5-Nitrae 6 } and fullpath sequence { 1,21+, 46 } no
Unanimously, so in position fixing process, " 21 " number are the fault detector failed to report；As shown in Table 3, all types of separate lower generation remote signalling are moved
The number of times of work is followed successively by：A phases 2 times, B phases 1 time, C phases 2 times so this failure is AC phase short troubles, and occur at 13
46 points 22 seconds.
Then { 1,21.1,21.1.10 } path is judged, by the largest logical position in { 1,21.1,21.1.10 } path,
Fullpath sequence is searched out in complete sequence { 1,21.1,21.1.10,21+, 46,77 } for { 1,21.1,21.1.10 }, by
This can determine that failure occurs after " 21.1.10 " number fault detector.Due to action sequence { 1,21.1,21.1.10 } with it is complete
Whole path sequence { 1,21.1,21.1.10 } unanimously, so in position fixing process, in the absence of the fault detector failed to report；Can by table 3
Know, all types of separate lower number of times for occurring remote signalling action are followed successively by：A phases 3 times, B phases 3 times, C phases 1 time, so this failure is AB
Phase short trouble, and occur 45 points and 11 seconds at 13.
In summary, the short trouble of this secondary line 2 has two, is respectively：Circuit 2 is in " 46 " number fault detector and " 77 "
Between number fault detector when 13 46 points occur AC phase short troubles within 22 seconds, " 21 " number fault detector is the event failed to report simultaneously
Hinder indicator；In " 21.1.10 " number fault detector AB phase short troubles occurred in 11 seconds for circuit 2 for 45 points after 13 when.
The position fixing process of the short trouble of circuit 1 is specific as follows：
13:56:The positioning of the short trouble of circuit 1 is performed when 33, a upper predetermined period short-circuit remote signalling of 10 minutes is obtained
Action message, obtains result as shown in table 4：
The short-circuit remote signalling action message of 4 circuit of table 1
The distributed architecture of fault detector on circuit 1 is illustrated in figure 2, by patrolling for fault detector all on circuit 1
Name placement is collected, obtained complete sequence is：{ 9,27-, 27.1,33,60,69 }, by the logic of the fault detector acted
Name placement, obtained action sequence is：{ 9,27-, 60 }.Through judging, the fault detector acted is in same path, then
Fullpath sequence is searched out in complete sequence { 9,27-, 27.1,33,60,69 } for { 9,27-, 33,60 }.As shown in Table 4,
During this period of time, the number of times for occurring short trouble is 1 time, further can determine whether to be out of order in position in " 60 " number indicating fault
Between device and " 69 " number fault detector；Because action sequence and fullpath sequence are inconsistent, so in position fixing process, " 33 "
Number fault detector is the fault detector failed to report；As shown in Table 4, the number of times that all types of separate lower generation remote signalling are acted are successively
For：So this failure is AB phase short troubles, and 46 points and 33 seconds at 13 occur for A phases 3 times, B phases 2 times, C phases 0 time.It is comprehensive
The judgement of the above is closed, the conclusion drawn is：Circuit 1 is between " 60 " number fault detector and " 69 " number fault detector when 13
46 points occur AB phase short troubles in 33 seconds, and " 33 " number fault detector is the fault detector failed to report.
The fault location situation on two lines road is merely illustrative in the present embodiment, in the power distribution network of reality, circuit
There are tens of or even up to a hundred, and this several situation that fault type therein is also not only included in the present embodiment, the present embodiment
In situation be actual conditions sub-fraction, and the embodiment of the present application provide a kind of this distribution line failure localization method
This sub-fraction is applicable not only to, applies also for possessing the power distribution network of vast number circuit and more multiple faults.
From above technical scheme, the application provides a kind of distribution line failure localization method and device, obtains current
The remote signalling data sent in predetermined period with upper predetermined period internal fault indicator；According to the logic of all fault detectors
Position, determines complete sequence；According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；Further according to
Complete sequence and action sequence, obtain fullpath sequence；Finally according to fullpath sequence, action sequence, remote signalling data and
Remote signalling action message, determines that time, the type of failure and the failure failed to report that location of fault on distribution line, failure occur refer to
Show device.The method and device that the embodiment of the present application is provided, according to the logical place of fault detector to fault location, and may be used also
To determine the other information of failure, fault message automated analysis level and analysis efficiency are improved, distribution line failure is realized
Quick positioning, facilitates staff to investigate failure, can rapidly and accurately find trouble point, saves electric network fault repairing
Time, improve power supplying efficiency.
Those skilled in the art will readily occur to its of the application after considering specification and putting into practice application disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the application, these modifications, purposes or
Person's adaptations follow the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the application is pointed out by claim.
It should be appreciated that the precision architecture that the application is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.Invention described above embodiment is not constituted to this hair
The restriction of bright protection domain.
Claims (10)
1. a kind of distribution line failure localization method, it is characterised in that methods described includes：
Mark and store logical place of the fault detector in distribution line；
According to the logical place, the remote signalling that in the current preset cycle and upper predetermined period internal fault indicator is sent is obtained
Data；
According to the logical place of all fault detectors, complete sequence is determined；
According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；
According to the complete sequence and the action sequence, fullpath sequence is obtained；
According to the fullpath sequence and the remote signalling data, it is determined that the logical place of the fault detector closest to failure,
Position the failure on distribution line.
2. according to the method described in claim 1, it is characterised in that produce the remote signalling number that the fault detector of remote signalling action is sent
The remote signalling action message is included in；The remote signalling action message includes：The circuit of remote signalling action generation, the class of remote signalling action
The time that type and remote signalling action occur；
According to the logical place of all fault detectors, before determining complete sequence, including：
Judge to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical place of all fault detectors, really
Determine complete sequence.
3. according to the method described in claim 1, it is characterised in that methods described also includes：
According to the fullpath sequence and the action sequence, it is determined that the fault detector failed to report.
4. method according to claim 2, it is characterised in that methods described also includes：
According to the remote signalling data, determine occur time of the remote signalling action on the current line under each phase of fault detector
Number；The type of the remote signalling action includes：Ground connection and short circuit；
According to the number of times that short-circuit remote signalling is acted occurs under each phase, the position of short trouble is determined；
According to the number of times that ground connection remote signalling is acted occurs under each phase, the position of earth fault is determined.
5. method according to claim 4, it is characterised in that according to time that short-circuit remote signalling action occurs under each phase
Number, determines the position of short trouble, including：
The numerical value that short-circuit remote signalling action frequency occurs under three-phase is contrasted, three numerical value are arranged from big to small, the first number is followed successively by
Value, second value and third value；
If three numerical value are not mutually equal, it is determined that failure is first numerical value and the corresponding line to line fault of the second value
Failure；
If first numerical value and the second value are equal, it is determined that failure is first numerical value and the second value
Corresponding two-phase short-circuit fault；
If the second value and third value is equal or three numerical value are equal, it is determined that the failure is total short circuit
Failure.
6. method according to claim 4, it is characterised in that according to time that ground connection remote signalling action occurs under each phase
Number, determines the position of earth fault, including：
The numerical value that ground connection remote signalling action frequency occurs for three-phase is contrasted, numerical value is arranged from big to small, the first numerical value, second is followed successively by
Numerical value and third value；
If three numerical value are not mutually equal, it is determined that the failure is the corresponding phase earth fault of first numerical value；
If the first numerical value and second value is equal or three numerical value are equal, it is determined that the failure is total ground connection
Failure.
7. method according to claim 4, it is characterised in that after determining that the failure on distribution line is earth fault,
Also include：
The switching action message of the signal source under current transformer substation is obtained, the signal source switching of the earth fault is marked and store
Action message.
8. a kind of distribution line failure positioner, it is characterised in that described device includes：
Indicator mark unit 16, for marking and storing logical place of the fault detector in distribution line；
Data capture unit 17, for according to the logical place, obtaining in the current preset cycle and in a upper predetermined period
The remote signalling data that fault detector is sent；
Failure location unit 19, is used for：
According to the logical place of all fault detectors, complete sequence is determined；
According to the logical place for producing the fault detector that remote signalling is acted, action sequence is determined；
According to the complete sequence and the action sequence, fullpath sequence is obtained；
According to the fullpath sequence and the remote signalling data, it is determined that the logical place of the fault detector closest to failure,
Position the failure on distribution line.
9. device according to claim 8, it is characterised in that described device also includes：
Judging unit 18, for judging to whether there is remote signalling action message in the remote signalling data,
If there is the remote signalling action message in the remote signalling data, according to the logical place of all fault detectors, really
Determine complete sequence.
10. device according to claim 9, it is characterised in that described device also includes：
Information flag unit 20, the switching action message for obtaining the signal source under current transformer substation marks and stores described
The signal source switching action message of earth fault.
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