CN108899878B - A kind of distribution line failure localization method - Google Patents
A kind of distribution line failure localization method Download PDFInfo
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- CN108899878B CN108899878B CN201810755817.8A CN201810755817A CN108899878B CN 108899878 B CN108899878 B CN 108899878B CN 201810755817 A CN201810755817 A CN 201810755817A CN 108899878 B CN108899878 B CN 108899878B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
Abstract
This application discloses a kind of distribution line failure localization methods, make full use of the system data informations such as existing dispatching automation, distribution automation and metering automation, and comprehensive analysis is carried out to the data information of acquisition, rapid drop distribution line failure range, thus quickly, be accurately positioned abort situation.The distribution line failure localization method of the application, position fixing process is simple, easy, and the positioning result accuracy of abort situation is high, promotes the use of convenient for extensive.
Description
Technical field
This application involves field of fault detection more particularly to a kind of distribution line failure localization methods.
Background technique
With the raising of China's expanding economy and living standards of the people, people propose power supply reliability more higher
Requirement.Power failure is according to statistics, to cause to have a power failure about because breaking down in electric system the main reason for influencing power supply reliability
The 80% of entire power off time is accounted for, in these power failures, causing to have a power failure due to the failure on route accounts for 60% or so.
When handling these line accidents, the time for searching failure accounts for entire fault handling time 70%-90%, wherein
For the trunk transmission line of electricity of voltage levels, there is special equipment inspection since its line conditions is relatively easy, and to line fault
Survey, therefore, trouble shoot and treatment process relatively convenient；And for being in the distribution line of reticular structure, lines branch is numerous,
And line condition is complicated, and therefore, trouble shoot and treatment process relative difficulty.
Currently, it is usually to carry out using scheduling information and by previous experience that distribution line failure, which is searched,.When matching
When electric line breaks down, the outlet switch of electric substation is pulled open in scheduling, and distribution work area personnel carry out trouble shoot along the line, due to line
Road hangs with many distribution transformers, and it is very difficult to find abort situation, especially low-voltage customer failure.
Summary of the invention
This application provides a kind of distribution line failure localization methods, to solve existing power distribution circuit fault location process
Complicated and time-consuming problem.
This application provides a kind of distribution line failure localization methods, for positioning the abort situation of distribution line, wherein
Distribution line includes basic routing line and several branched lines, and basic routing line is equipped with gate out switch CK and several Discrete controls
Device FD, each branched line are equipped with branch controller FZ, and distribution transformer low-pressure side is equipped with distribution transformer monitoring and metering terminal
TTU, which is characterized in that including,
Whether step S100, real-time detection gate out switch CK trip；
Step S200, if detecting, gate out switch CK trips, and detects whether measuring terminal TTU reported failure to accuse
Alert information；
Step S300 determined branch where measuring terminal TTU if measuring terminal TTU reports fault warning information
The tail end line of route breaks down or measuring terminal TTU breaks down；
Step S400, if measuring terminal TTU did not reported fault warning information, whether detection branches controller FZ is reported
Cross fault warning information；
Step S500 determines to divide where branch controller FZ if branch controller FZ reported fault warning information
Branch line breaks down or branch controller FZ breaks down；
Step S600, if branch controller FZ did not reported fault warning information, detect segmentation controller FD whether on
Reported fault warning information；
Step S700 determined the downstream side segmentation controller FD if segmentation controller FD reports fault warning information
Basic routing line break down or segmentation controller FD breaks down.
Preferably, step S300 determined measuring terminal TTU institute if measuring terminal TTU reports fault warning information
It breaks down in the tail end line of branched line or measuring terminal TTU breaks down, specifically include,
Point if measuring terminal TTU reported fault warning information, where detecting measuring terminal TTU on branched line
Whether branch controller FZ reported fault warning information,
If the branch controller FZ where measuring terminal TTU on branched line reported fault warning information, determine
The tail end line of branched line breaks down where measuring terminal TTU,
If the branch controller FZ where measuring terminal TTU on branched line did not reported fault warning information, sentence
Fixed measuring terminal TTU breaks down.
Preferably, step S500 determined branch controller FZ if branch controller FZ reports fault warning information
Place branched line breaks down or branch controller FZ breaks down, and specifically includes,
If branch controller FZ reported fault warning information, adjacent with branch controller FZ and close electricity is detected
Whether the segmentation controller FD of source reported fault warning information,
If adjacent with branch controller FZ and close to source side segmentation controller FD reported fault warning information,
Then determine that branched line where branch controller FZ breaks down,
If adjacent with branch controller FZ and close to source side segmentation controller FD did not reported fault warning to believe
Breath, then determine that branch controller FZ breaks down.
Preferably, step S700 determined segmentation controller FD if segmentation controller FD reports fault warning information
The basic routing line in downstream side breaks down or segmentation controller FD breaks down, and specifically includes,
If segmentation controller FD reported fault warning information, the upstream and downstream adjacent with segmentation controller FD are detected
Whether segmentation controller FD reported failure warning information,
If the section upstream controller FD adjacent with segmentation controller FD reported failure warning information, and with the segmentation
Controller FD adjacent downstream side segmentation controller FD did not reported failure warning information, then determined that failure is located at the Discrete control
On basic routing line between device FD and the segmentation controller FD in downstream side；
If the section upstream controller FD adjacent with segmentation controller FD did not reported failure warning information, determining should
Segmentation controller FD failure.
This application provides a kind of distribution line failure localization methods, make full use of existing dispatching automation, distribution certainly
The system data informations such as dynamicization and metering automation, and comprehensive analysis, rapid drop distribution wire are carried out to the data information of acquisition
Road fault coverage, thus quickly, be accurately positioned abort situation.The distribution line failure localization method of the application, position fixing process letter
It is single, easy, and the positioning result accuracy of abort situation is high, promotes the use of convenient for extensive.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of flow chart of distribution line failure localization method of the application；
Fig. 2 is the exemplary diagram that 10kV distribution line breaks down.
Specific embodiment
The distribution line failure localization method of the application is used to position the abort situation of distribution line, wherein distribution line
Including basic routing line and several branched lines, basic routing line is equipped with gate out switch CK and several segmentation controller FD,
In, the switching information of gate out switch CK comes from dispatch automated system, and the switching information of segmentation controller FD is automatic from distribution
Change system.Each branched line is equipped with branch controller FZ, and distribution transformer low-pressure side is configured with distribution transformer monitoring and metering terminal
TTU, wherein the information of branch controller FZ comes from distribution automation system, and the end message of measuring terminal TTU carrys out self-measuring certainly
Dynamicization system.
Fig. 1 is a kind of flow chart of distribution line failure localization method of the application, as shown in Figure 1, the distribution wire of the application
Road Fault Locating Method includes,
Whether step S100, real-time detection gate out switch CK trip.
Step S200, if detecting, gate out switch CK trips, and detects whether measuring terminal TTU reported failure to accuse
Alert information.
Step S300 determined branch where measuring terminal TTU if measuring terminal TTU reports fault warning information
The tail end line of route breaks down or measuring terminal TTU breaks down.
To avoid accidentally sending out fault warning information due to power equipment failure itself, in the application, step S300's is specific
Realization process includes,
When measuring terminal TTU reported fault warning information, then where detecting measuring terminal TTU on branched line
Whether branch controller FZ reported fault warning information,
If the branch controller FZ where measuring terminal TTU on branched line reported fault warning information, determine
The failure is low-voltage customer failure, and abort situation is the tail end line of branched line where measuring terminal TTU；
If the branch controller FZ where measuring terminal TTU on branched line did not reported fault warning information, sentence
Fixed measuring terminal TTU breaks down.
Step S400, if measuring terminal TTU did not reported fault warning information, whether detection branches controller FZ is reported
Cross fault warning information.
Step S500 determines to divide where branch controller FZ if branch controller FZ reported fault warning information
Branch line breaks down or branch controller FZ breaks down.
To avoid accidentally sending out fault warning information due to power equipment failure itself, in the application, step S500's is specific
Realization process includes,
When branch controller FZ reported fault warning information, then detect adjacent and close with branch controller FZ
Whether the segmentation controller FD of source side reported fault warning information,
If adjacent with branch controller FZ and close to source side segmentation controller FD reported fault warning information,
Then determine that branched line where branch controller FZ breaks down,
If adjacent with branch controller FZ and close to source side segmentation controller FD did not reported fault warning to believe
Breath, then determine that branch controller FZ breaks down.
Step S600, if branch controller FZ did not reported fault warning information, detect segmentation controller FD whether on
Reported fault warning information.
Step S700 determined the downstream side segmentation controller FD if segmentation controller FD reports fault warning information
Basic routing line break down or segmentation controller FD breaks down.
To avoid accidentally sending out fault warning information due to power equipment failure itself, in the application, step S700, if segmentation
Controller FD reported fault warning information, then determined that the basic routing line in the downstream side segmentation controller FD breaks down or this point
Paragraph controller FD breaks down, and specifically includes,
If segmentation controller FD reported fault warning information, the upstream and downstream adjacent with segmentation controller FD are detected
Whether segmentation controller FD reported failure warning information,
If the section upstream controller FD adjacent with segmentation controller FD reported failure warning information, and with the segmentation
Controller FD adjacent downstream side segmentation controller FD did not reported failure warning information, then determined that failure is located at the Discrete control
On basic routing line between device FD and the segmentation controller FD in downstream side；
If the section upstream controller FD adjacent with segmentation controller FD did not reported failure warning information, determining should
Segmentation controller FD failure.
For example, certain basic routing line is equipped with n section breaker, from source side, successively life is segmentation controller FD(1),
FD(2)..., FD(i-1), FD(i), FD(i+1)...,(n), wherein FD(i-1)For point adjacent with segmentation controller FD, positioned at upstream side
Paragraph controller, FD(i+1)For segmentation controller adjacent with segmentation controller FD, positioned at downstream side.As segmentation controller FD(i)On
When reporting failure warning information, then segmentation controller FD is detected(i-1)With segmentation controller FD(i+1)Whether failure warning was reported
Information.If segmentation controller FD(i-1)Reported failure warning information, and segmentation controller FD(i+1)Failure warning was not reported to believe
Breath determines the failure then for basic routing line failure, and abort situation is located at segmentation controller FD(i)With segmentation controller FD(i+1)It
Between basic routing line on.If segmentation controller FD(i-1)Failure warning information was not reported, then judged segmentation controller FD(i)Occur
Failure.
Fig. 2 is the exemplary diagram that breaks down of 10kV distribution line, as shown in Fig. 2, on 10kV basic routing line from source side to
Load side is successively arranged 1-6 branched line, and the basic routing line on contiguous branch route is equipped with corresponding segmentation controller, often
Branch circuit is equipped with corresponding branch controller and measuring terminal.
When the non-reporting fault warning information of TTU1 to TTU8, the non-reporting fault warning information of FZ1 to FZ6, FD1 and CK are reported
When fault warning information, then failure is determined for 10kV basic routing line failure, and abort situation is between FD1 and FD2, i.e. failure
At F1 point.
When the non-reporting fault warning information of TTU1 to TTU8, branch controller only has FZ4 to receive fault warning information, and
When adjacent with FZ4 and close to source side segmentation controller FD2 reports identical fault characteristic information, then determine that failure is point
Branch line failure, and abort situation is located at the 10kV section of branched line 4, i.e. failure is located at F2 point.
When only TTU6 reporting fault warning information, and when branch controller FZ5 reports identical fault characteristic information,
Determine the failure then for low-voltage customer failure, and abort situation is located at the back segment of the branched line 6 where TTU6, i.e. failure is located at
At F3 point.
The distribution line failure localization method of the application, makes full use of existing dispatching automation, distribution automation and meter
The system data informations such as amount automation, and comprehensive analysis, rapid drop distribution line failure model are carried out to the data information of acquisition
Enclose, thus quickly, be accurately positioned abort situation.The distribution line failure localization method of the application, position fixing process is simple, easy,
And the positioning result accuracy of abort situation is high, promotes the use of convenient for extensive.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (4)
1. a kind of distribution line failure localization method, for positioning the abort situation of distribution line, wherein distribution line includes master
Main line and several branched lines, basic routing line are equipped with gate out switch CK and several segmentation controller FD, each branch
Route is equipped with branch controller FZ, and distribution transformer low-pressure side is configured with distribution transformer monitoring and metering terminal TTU, which is characterized in that
Including,
Whether step S100, real-time detection gate out switch CK trip；
Step S200, if detecting, gate out switch CK trips, and detects whether measuring terminal TTU reported fault warning to believe
Breath；
Step S300 determined branched line where measuring terminal TTU if measuring terminal TTU reports fault warning information
Tail end line break down or measuring terminal TTU breaks down；
Step S400, if measuring terminal TTU did not reported fault warning information, whether detection branches controller FZ reported event
Hinder warning information；
Step S500 determined branch line where branch controller FZ if branch controller FZ reports fault warning information
Road is broken down or branch controller FZ breaks down；
Step S600 detected whether segmentation controller FD reported if branch controller FZ does not report fault warning information
Fault warning information；
Step S700 determined the master in the downstream side segmentation controller FD if segmentation controller FD reports fault warning information
Main line breaks down or segmentation controller FD breaks down.
2. the method according to claim 1, wherein step S300, if measuring terminal TTU reported fault warning
Information, then the tail end line of branched line where determining measuring terminal TTU breaks down or event occurs for measuring terminal TTU
Barrier, specifically includes,
Branch's control if measuring terminal TTU reported fault warning information, where detecting measuring terminal TTU on branched line
Whether device FZ processed reported fault warning information,
If the branch controller FZ where measuring terminal TTU on branched line reported fault warning information, the meter is determined
The tail end line of branched line breaks down where amount terminal TTU,
If the branch controller FZ where measuring terminal TTU on branched line did not reported fault warning information, determining should
Measuring terminal TTU breaks down.
3. the method according to claim 1, wherein step S500, if branch controller FZ reported failure to accuse
Alert information then determines that branched line where branch controller FZ breaks down or branch controller FZ breaks down, specifically
Including,
If branch controller FZ reported fault warning information, adjacent with branch controller FZ and close source side is detected
Segmentation controller FD whether reported fault warning information,
If adjacent with branch controller FZ and close to source side segmentation controller FD reported fault warning information, sentence
Branched line where fixed branch controller FZ breaks down,
If adjacent with branch controller FZ and close to source side segmentation controller FD did not reported fault warning information,
Determine that branch controller FZ breaks down.
4. the method according to claim 1, wherein step S700, if segmentation controller FD reported failure to accuse
Alert information, then determine that the basic routing line in the downstream side segmentation controller FD breaks down or segmentation controller FD breaks down,
It specifically includes,
If segmentation controller FD reported fault warning information, the upstream and downstream segmentation adjacent with segmentation controller FD is detected
Whether controller FD reported failure warning information,
If the section upstream controller FD adjacent with segmentation controller FD reported failure warning information, and with the Discrete control
Device FD adjacent downstream side segmentation controller FD did not reported failure warning information, then determined that failure is located at segmentation controller FD
On basic routing line between the segmentation controller FD in downstream side；
If the section upstream controller FD adjacent with segmentation controller FD did not reported failure warning information, the segmentation is determined
Controller FD failure.
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| CN109709445A (en) * | 2018-12-21 | 2019-05-03 | 云南电网有限责任公司电力科学研究院 | High permeability distributed generation resource accesses distribution network failure positioning and processing method |
| CN114325238B (en) * | 2021-12-30 | 2023-12-15 | 上海尤比酷电气有限公司 | Low-voltage distribution line fault positioning method and system |
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