CN105467276B - A kind of line fault monitoring method and system - Google Patents
A kind of line fault monitoring method and system Download PDFInfo
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- CN105467276B CN105467276B CN201610019106.5A CN201610019106A CN105467276B CN 105467276 B CN105467276 B CN 105467276B CN 201610019106 A CN201610019106 A CN 201610019106A CN 105467276 B CN105467276 B CN 105467276B
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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
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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Abstract
This application discloses a kind of line fault monitoring method and devices.The present invention combines the outage information of special, public transformer terminals, the line fault information of distribution line monitoring terminal, power supply interrupted district and charging zone are analyzed according to distribution line topology, solves the problems, such as the information sharing between transformer blackouts monitoring information and distribution line failure information, the scope of power outage that more acurrate can be obtained line fault and influence.
Description
Technical field
This application involves wireline inspection fields, more specifically to a kind of line fault monitoring method and system.
Background technology
Power information acquisition at present has covered distribution transformer on-line monitoring and distribution line with distribution line monitoring
On-line monitoring, public transformer terminals and special transformer terminals have been able to accurately report transformer outage information to main station system, and distribution
Path monitoring terminal can lead the monitoring that is reported to of the line faults such as the short circuit occurred on circuit, ground connection information accurately and timely
It stands.
Since two operation systems are relatively independent, online monitoring data cannot achieve it is shared, therefore power information acquisition system
System can only analyze transformer outage information, and determine the low-voltage customer scope of power outage under some power failure transformer, and distribution line
Monitoring is merely able to monitoring short trouble and position occurs, thus can not accurately know the scope of power outage that line fault influences.
Invention content
In view of this, a kind of line fault monitoring method of the application offer and system, believe in conjunction with the power failure of special, public transformer terminals
The line fault information of breath, distribution line monitoring terminal, analyzes power supply interrupted district and charging zone according to distribution line topology, solves
The information sharing problem determined between transformer blackouts monitoring information and distribution line failure information, being capable of more acurrate acquisition circuit
The scope of power outage that failure influences.
To achieve the goals above, it is proposed that scheme it is as follows：
A kind of line fault monitoring method, including：
Analyze all distribution lines for reporting line fault information monitor terminals line topological positions and it is all not on
The line topological position for reporting the distribution line monitoring terminal of line fault information, determines fault section；
It is switched the higher level disconnecting switch nearest apart from the fault section as responsibility；
According to the transformer outage information of special, public transformer terminals, the higher level of the responsibility switch and responsibility switch is calculated
Transformer power failure ratio between disconnecting switch；
When the transformer power failure ratio is less than predetermined threshold value, it is determined that the subordinate section of the responsibility switch is to have a power failure
The higher level section in section, the responsibility switch is electrification section；
When the transformer power failure ratio is more than or equal to predetermined threshold value, higher level's disconnecting switch that the responsibility is switched is made
Switched for new responsibility, return execute the basis specially, the transformer outage information of public transformer terminals, calculate the responsibility switch with
Between higher level's disconnecting switch of the responsibility switch the step of transformer power failure ratio, until the transformer power failure ratio is less than
Predetermined threshold value.
Preferably, all distribution lines for reporting line fault information of the analysis monitor the line topological position of terminals with
And all line topological positions for not reporting the distribution line of line fault information to monitor terminal, determine fault section, before also
Including：
Based on wire topologies figure and line fault information, determination reports the distribution line of line fault information to monitor
The line topological position of terminal and do not report line fault information distribution line monitor terminal line topological position.
Preferably, all distribution lines for reporting line fault information of the analysis monitor the line topological position of terminals with
And all line topological positions for not reporting the distribution line of line fault information to monitor terminal, determine fault section, including：
The line topological position that reports the distribution line of line fault information monitor terminal farthest apart from substation is made
For the initial position of fault section；
Using the initial position as starting point, judge far from substation direction with the presence or absence of line fault not being reported to believe
The distribution line of breath monitors terminal；
If in the presence of not reporting the topology location that the distribution line of line fault information monitors terminal as event using first
Hinder first end position in section；
Fisrt fault section is determined according to the initial position and first end position；
It will not report the distribution wire of line fault information to monitor terminal to open up not across other of the Fisrt fault section
Flutter end position of the position as other fault sections；
The initial position and all end positions are marked, determines all fault sections；
It, will be using initial position as starting point, far from all circuits on substation direction as faulty section if being not present
Between.
Preferably, the transformer outage information of special, the public transformer terminals of the basis calculates the responsibility switch and the responsibility
Transformer power failure ratio between higher level's disconnecting switch of switch, including：
Obtain the transformer outage information of special, public transformer terminals
According to the transformer outage information, transformer power failure list is generated
According to the transformer power failure list, determine the responsibility switch and responsibility switch higher level's disconnecting switch it
Between total number transformer and execute the number transformer of power failure operation；
The transformer power failure ratio is calculated according to the quantity for the transformer for executing power failure operation and transformer total quantity
Example.
Preferably, the subordinate section of the determination responsibility switch is power failure section, further includes later：
It shows the power failure section and fault section, and exports power failure warning message.
A kind of line fault monitoring device, including：
Fault section determination unit, all line topologicals for reporting the distribution line of line fault information to monitor terminal of analysis
Position and all line topological positions for not reporting the distribution line of line fault information to monitor terminal, determine fault section；
Responsibility switchs determination unit, for opening the higher level disconnecting switch nearest apart from the fault section as responsibility
It closes；
Computing unit calculates the responsibility switch and the duty for the transformer outage information according to special, public transformer terminals
Appoint switch higher level's disconnecting switch between transformer power failure ratio；
Stop, charge determination unit, for when the transformer power failure ratio is less than predetermined threshold value, it is determined that the responsibility
The subordinate section of switch is power failure section, and the higher level section of the responsibility switch is electrification section；
Wherein, when the transformer power failure ratio of computing unit output is more than or equal to predetermined threshold value, the duty
Appoint higher level's disconnecting switch that switch determination unit switchs the responsibility to be switched as new responsibility, return to the computing unit,
The transformer power failure ratio of the computing unit output is less than predetermined threshold value.
Preferably, further include：Line topological position determination unit, for being based on wire topologies figure and line fault
Information determines and reports the distribution line of line fault information to monitor the line topological position of terminal and line fault is not reported to believe
The line topological position of the distribution line monitoring terminal of breath.
Preferably, the fault section determination unit includes：
Initial position determining module, for monitoring the distribution line that reports line fault information farthest apart from substation
Initial position of the line topological position of terminal as fault section；
Judgment module, for using the initial position as starting point, judging on far from substation direction with the presence or absence of not
The distribution line of line fault information is reported to monitor terminal；
First end position determining module, judging result for being exported when judgment module be when being, by first not on
Report first end position of the topology location of the distribution line monitoring terminal of line fault information as fault section；
Fisrt fault interval determination module, for determining the first event according to the initial position and first end position
Hinder section；
Second end position determining module, for will not report line fault not across other of the Fisrt fault section
End position of the topology location of the distribution wire monitoring terminal of information as other fault sections；
Fisrt fault interval mark module determines all events for marking the initial position and all end positions
Hinder section；
Second fault section mark module is used for when the judging result that judgment module exports is no, then will be with start bit
It is set to starting point, far from all circuits on substation direction as fault section.
Preferably, the computing unit includes：
Outage information acquisition module, the transformer outage information for obtaining special, public transformer terminals
Power failure list sorting module, for according to the transformer outage information, generating transformer power failure list
Number transformer statistical module, for according to the transformer power failure list, determine the responsibility switch with it is described
Total number transformer and the number transformer of execution power failure operation between higher level's disconnecting switch of responsibility switch；
Computing module, described in being calculated according to the quantity and transformer total quantity of the transformer for executing power failure operation
Transformer power failure ratio.
Preferably, further include display, alarm unit, for showing the power failure section and fault section, and export power failure
Warning message.
As can be seen from the above technical solutions, this application discloses a kind of line fault monitoring method and devices.This method root
According to all distribution line terminals for reporting line fault information and it is described be the topology location for reporting line fault information, determine
Fault section.And then determine a responsibility switch, and determine that the responsibility switchs according to the transformer outage information of special, public transformer terminals
Transformer power failure ratio between higher level's disconnecting switch.When the ratio is less than predetermined threshold value, then illustrate that responsibility switch is
Step switch, the region after responsibility switchs is power failure section, and region before is electrification section.When the ratio is more than or equal in advance
If when threshold value, illustrating that responsibility switch is not the step switch having a power failure, the higher level's disconnecting switch at this time switching the responsibility is made
It is switched for new responsibility, until determining step switch.Compared with prior art, the present invention combines the power failure letter of special, public transformer terminals
The line fault information of breath, distribution line monitoring terminal, analyzes power supply interrupted district and charging zone according to distribution line topology, solves
The information sharing problem determined between transformer blackouts monitoring information and distribution line failure information, being capable of more acurrate acquisition circuit
The scope of power outage that failure influences.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows a kind of flow diagram of path monitoring method disclosed in one embodiment of the invention；
Fig. 2 shows the flows that fault section is determined in a kind of path monitoring method disclosed in another embodiment of the present invention
Schematic diagram；
Fig. 3 shows the flow that power failure section is determined in a kind of path monitoring method disclosed in another embodiment of the present invention
Schematic diagram；
Fig. 4 shows the present invention, and another implements a kind of disclosed structural schematic diagram of pressure line monitoring device；
Fig. 5 shows a kind of fault section determination unit of pressure line monitoring device disclosed in another embodiment of the present invention
Structural schematic diagram；
Fig. 6 shows a kind of computing unit determination unit of pressure line monitoring device disclosed in another embodiment of the present invention
Structural schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of flow diagram of path monitoring method disclosed in one embodiment of the invention is shown referring to Fig. 1.
As shown in Figure 1, this method includes：
S101：It analyzes all line topological positions for reporting the distribution line of line fault information to monitor terminal and owns
It does not report the distribution line of line fault information to monitor the line topological position of terminal, determines fault section.
Since the wiring circuit monitoring terminal for only having fault current to flow through can just report line fault information, thus combine event
Barrier electric current only has the principle of exclusive path from substation to fault point, to report the distribution wire of line fault information monitor terminal with
And the line topological position for not reporting the distribution wire of line fault information to monitor terminal is analyzed, you can determines fault section.
S102：It is switched the higher level disconnecting switch nearest apart from the fault section as responsibility.
S103：According to the transformer outage information of special, public transformer terminals, the responsibility switch and responsibility switch are calculated
Transformer power failure ratio between higher level's disconnecting switch.
S104：When the transformer power failure ratio is less than predetermined threshold value, it is determined that the subordinate section of the responsibility switch
Higher level section for power failure section, the responsibility switch is electrification section.
When the power failure ratio of transformer is less than predetermined threshold value, then illustrates that responsibility switch is the switch to trip, stop
After film rings ranging from this grade switch, before electrification ranging from this grade switch.
S105：When the transformer power failure ratio is more than or equal to predetermined threshold value, the higher level that the responsibility is switched is isolated
It switchs and is switched as new responsibility, return to step S102 and step S103, until the transformer power failure ratio is less than in advance
If threshold value.
Have a power failure if there is a certain proportion of transformer, then it is assumed that responsibility at this time switch and is to act, and then by the duty
Higher level's disconnecting switch of switch is appointed to be switched as new responsibility.
S106：It shows power failure coverage and line fault section, and exports warning message.
In the present embodiment, show abort situation by the way of line chart and GIS geographical maps, circuit band is distinguished with color
Electricity condition.
As seen from the above embodiment, this application discloses a kind of line fault monitoring methods.This method is reported according to all
The distribution line terminal of line fault information and it is described be to report the topology location of line fault information, determine fault section.
And then determine responsibility switch, and according to the transformer outage information of special, public transformer terminals determine responsibility switch and higher level every
Leave the transformer power failure ratio between closing.When the ratio is less than predetermined threshold value, then illustrate that responsibility switch is step switch,
Region after responsibility switch is power failure section, and region before is electrification section.When the ratio is more than or equal to predetermined threshold value,
Illustrate that responsibility switch is not the step switch having a power failure, the higher level's disconnecting switch at this time switching the responsibility is as new responsibility
Switch, until determining step switch.Compared with prior art, the present invention combines the outage information of special, public transformer terminals, distribution line
The line fault information for monitoring terminal, analyzes power supply interrupted district and charging zone according to distribution line topology, solves transformer
Information sharing problem between blackouts monitoring information and distribution line failure information more acurrate can obtain what line fault influenced
Scope of power outage.
Referring to Fig. 2 shows determine fault section in a kind of path monitoring method disclosed in another embodiment of the present invention
Flow diagram.
As shown in Figure 2, determine that the flow of fault section includes：
S201：Obtain the line fault information of distribution wire monitoring terminal.
S202：Based on wire topologies figure and line fault information, the distribution wire for reporting line fault information is determined
The distribution line of line fault information is not reported in the line topological text of road monitoring terminal and to monitor the line topological position of terminal
It sets.
S203：By the line topological position that reports the distribution line of line fault information monitor terminal farthest apart from substation
Set the initial position as fault section.
All line topological positions for reporting the distribution wire of line fault information to monitor terminal are analyzed, with farthest from substation
Report the last one monitoring point that the terminal of line fault information is flowed through as fault current, be labeled as fault section starting
Position.
S204：Using the initial position as starting point, judge far from substation direction with the presence or absence of not reporting circuit
The distribution line of fault message monitors terminal.
All line topological positions for not reporting the wiring circuit of line fault information to monitor terminal are analyzed, are originated with failure
Position is starting point, judges whether store monitoring terminal on original substation direction.
S205：If in the presence of the topology location that the distribution line of line fault information monitors terminal is not reported by first
The first end position as fault section.
S206：Fisrt fault section is determined according to the initial position and first end position.
S207 by not across the Fisrt fault section other do not report line fault information distribution wire monitor terminal
End position of the topology location as other fault sections.
After determining Fisrt fault section, continues to analyze all distribution wires for not reporting line fault information and monitor terminal
Line topological is objective, will be on original substation direction, and not across Fisrt fault area using failure initial position as starting point
Between other do not report the monitoring terminal of line fault information to be labeled as fault section end position yet, repeat step S206
Until far from substation direction, and not across can not find on the position in Fisrt fault section any line fault information is not reported
Monitoring terminal until.
S208：The initial position and all end positions are marked, determines all fault sections.
Fault section initial position and one or more fault section end positions are marked, this circuit is fault section.
S209：It, will be using initial position as starting point, far from all circuits on substation direction as event if being not present
Hinder section.
If there is no faulty section end position, illustrate that fault section initial position is the last one monitoring point on circuit,
Its circuit far from substation direction is then marked as fault section.
It is shown referring to Fig. 3 and determines power failure section in a kind of path monitoring method disclosed in another embodiment of the present invention
Flow diagram.
From the figure 3, it may be seen that determining that the detailed process in power failure section includes in the present embodiment：
S301：It is switched the nearest higher level's disconnecting switch in distance fault section as responsibility.
S302：Obtain the transformer outage information of special, public transformer terminals.
S303：According to the transformer outage information, transformer power failure list is generated.
Quantity and the change with piezoelectric transformer and power failure transformer in whole circuit are shown in the transformer power failure list
Depressor position.
S304：：According to the transformer power failure list, determine between responsibility switch and higher level's disconnecting switch of responsibility switch
Total number transformer and the number transformer for executing power failure operation.
S305：The transformer is calculated according to the quantity for the transformer for executing power failure operation and transformer total quantity to stop
Electric ratio.
S306 is when transformer power failure ratio is less than predetermined threshold value, it is determined that responsibility switch is step switch, the responsibility
The subordinate section of switch is power failure section, and higher level section is electrification section.
S307：When transformer power failure ratio is more than or equal to predetermined threshold value, higher level's disconnecting switch that current responsibility is switched
It is switched as new responsibility, returns to step S304, until the transformer power failure ratio is less than predetermined threshold value.
Showing the present invention referring to Fig. 4, another implements a kind of disclosed structural schematic diagram of pressure line monitoring device.
As shown in Figure 4, which includes：Line topological position determination unit 1, fault section determination unit 2, responsibility switch
Determination unit 3, computing unit 4 and stop, charge interval determination unit 5 and display, alarm unit 6.
Wherein, line topological position determination unit, all distribution on the topology diagram and circuit for obtaining circuit
Line monitors the line fault information of terminal, and then according to the topology diagram of circuit and line fault information, determines institute in circuit
Have and the distribution wire of line fault information is reported to monitor terminal and all distribution wire monitoring terminals for not reporting line fault information.
Fault section determination unit 2 analyzes all line topologicals for reporting the distribution line of line fault information to monitor terminal
Position and all line topological positions for not reporting the distribution line of line fault information to monitor terminal, determine fault section.
In turn, responsibility switch determination unit 3 opens the higher level disconnecting switch nearest apart from the fault section as responsibility
It closes.
Computing unit 4 calculates the responsibility switch and is opened with the responsibility according to the transformer outage information of special, public transformer terminals
Transformer power failure ratio between higher level's disconnecting switch of pass.
Wherein, when computing unit 4 export the result shows that when transformer power failure ratio is less than predetermined threshold value, stop, charge it is true
Order member 5 then determines that the subordinate section of responsibility switch is power failure section, and higher level section is electrification section.
When the structure that computing unit 4 exports shows that transformer power failure ratio is more than or equal to predetermined threshold value, responsibility switch is true
Higher level's disconnecting switch that order member 3 switchs current responsibility is switched as new responsibility, and then 4 calculating transformer of computing unit stops
Electric ratio, until the transformer power failure ratio that computing unit 4 exports is less than predetermined threshold value.
After determining power failure section, electrification section and fault section, display, alarm unit 6 show each section
Show, and exports power failure warning message.
Show that a kind of fault section determination of pressure line monitoring device disclosed in another embodiment of the present invention is single referring to Fig. 5
The structural schematic diagram of member.
In the present embodiment, which includes：Line topological position determination unit, fault section determination unit, responsibility are opened
It closes determination unit, computing unit and stops, charges interval determination unit and display, alarm unit.
Unlike upper one embodiment, fault section determination unit 2 specifically includes in the present embodiment：Initial position
Determining module 21, judgment module 22, the first end position determining module 23, Fisrt fault interval determination module 24, second terminate
Position determination module 25, Fisrt fault interval mark module 26 and the second fault section mark module 27.
Wherein, initial position determining module 21 is used for the distribution wire that reports line fault information farthest apart from substation
Road monitors initial position of the line topological position of terminal as fault section.
Then, judgment module 22 judges to whether there is on far from substation direction using the initial position as starting point
The distribution line of line fault information is not reported to monitor terminal.
The judging result that judgment module 22 exports is when being, the first end position determining module 23 does not report line by first
First end position of the topology location of the distribution line monitoring terminal of road fault message as fault section, to Fisrt fault
Interval determination module 24 determines Fisrt fault section according to the initial position and first end position.
In turn, the second end position determining module 25 by not across the Fisrt fault section other do not report circuit therefore
Hinder end position of the topology location of the distribution wire monitoring terminal of information as other fault sections.
Fisrt fault interval mark module 26 determines all for marking the initial position and all end positions
Fault section.
The judging result of judgment module output is no, illustrates that the initial position of fault section is the last one prison on circuit
Measuring point, then the second fault section mark module 27 will be using initial position as starting point, far from all circuits on substation direction
As fault section.
In addition, the computing unit of the device specifically includes in the present embodiment：Outage information collecting unit 41, power failure list
Finishing unit 42, number transformer statistical module 43 and computing module 44.Another embodiment of the present invention is shown referring to Fig. 6
A kind of structural schematic diagram of the computing unit determination unit of disclosed pressure line monitoring device.
Wherein, outage information acquisition module 42 is used to obtain the transformer outage information of special, public transformer terminals.
Power failure list sorting module 43 generates and becomes according to 42 collected transformer outage information of outage information acquisition module
Depressor power failure list.
Number transformer statistical module 43 determines that the responsibility switch is switched with the responsibility according to transformer power failure list
Higher level's disconnecting switch between total number transformer and execute the number transformer of power failure operation.
In turn, it calculates described in quantity and transformer total quantity calculating of the mould 44 according to the transformer for executing power failure operation
Transformer power failure ratio.
It should be noted that the device embodiment is corresponding with embodiment of the method, implementation procedure is identical with implementation principle,
Therefore not to repeat here.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ... ", not
There is also other identical elements in the process, method, article or apparatus that includes the element for exclusion.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of line fault monitoring method, which is characterized in that including：
All distribution lines for reporting line fault information are analyzed to monitor the line topological positions of terminals and all do not report line
The line topological position of the distribution line monitoring terminal of road fault message, determines fault section；
It is switched the higher level disconnecting switch nearest apart from the fault section as responsibility；
According to the transformer outage information of special, public transformer terminals, calculates the higher level that the responsibility switch is switched with the responsibility and be isolated
Transformer power failure ratio between switch；
When the transformer power failure ratio is less than predetermined threshold value, it is determined that the subordinate section of the responsibility switch is power failure area
Between, the higher level section of the responsibility switch is electrification section；
When the transformer power failure ratio is more than or equal to predetermined threshold value, higher level's disconnecting switch that the responsibility is switched is as new
Responsibility switch, return execute the basis specially, the transformer outage information of public transformer terminals, calculate the responsibility switch with it is described
Between higher level's disconnecting switch of responsibility switch the step of transformer power failure ratio, preset until the transformer power failure ratio is less than
Threshold value.
2. according to the method described in claim 1, it is characterized in that, all distribution wires for reporting line fault information of analysis
The line topological position of road monitoring terminal and all circuits for not reporting the distribution line of line fault information to monitor terminal are opened up
Position is flutterred, fault section is determined, further includes before：
Based on wire topologies figure and line fault information, determine that the distribution line for reporting line fault information monitors terminal
Line topological position and do not report line fault information distribution line monitor terminal line topological position.
3. according to the method described in claim 1, it is characterized in that, all distribution wires for reporting line fault information of analysis
The line topological position of road monitoring terminal and all circuits for not reporting the distribution line of line fault information to monitor terminal are opened up
Position is flutterred, determines fault section, including：
Using the line topological position of the distribution line monitoring terminal that reports line fault information farthest apart from substation as event
Hinder the initial position in section；
Using the initial position as starting point, judge far from substation direction with the presence or absence of not reporting line fault information
Distribution line monitors terminal；
If in the presence of not reporting the distribution line of line fault information to monitor the topology location of terminal as faulty section using first
Between the first end position；
Fisrt fault section is determined according to the initial position and first end position；
By not across the Fisrt fault section other do not report line fault information distribution wire monitor terminal topological position
Set the end position as other fault sections；
The initial position and all end positions are marked, determines all fault sections；
It, will be using initial position as starting point, far from all circuits on substation direction as fault section if being not present.
4. according to the method described in claim 1, it is characterized in that, the basis specially, the transformer outage information of public transformer terminals,
Transformer power failure ratio between the responsibility switch and higher level's disconnecting switch of responsibility switch is calculated, including：
Obtain the transformer outage information of special, public transformer terminals；
According to the transformer outage information, transformer power failure list is generated；
According to the transformer power failure list, determine total between the responsibility switch and higher level's disconnecting switch of responsibility switch
Number transformer and the number transformer for executing power failure operation；
The transformer power failure ratio is calculated according to the quantity for the transformer for executing power failure operation and transformer total quantity.
5. according to the method described in claim 1, it is characterized in that, the subordinate section of the determination responsibility switch is to have a power failure
Section further includes later：
It shows the power failure section and fault section, and exports power failure warning message.
6. a kind of line fault monitoring device, which is characterized in that including：
Fault section determination unit, all line topological positions for reporting the distribution line of line fault information to monitor terminal of analysis
And all line topological positions for not reporting the distribution line of line fault information to monitor terminal, determine fault section；
Responsibility switchs determination unit, for being switched the higher level disconnecting switch nearest apart from the fault section as responsibility；
Computing unit calculates the responsibility switch and is opened with the responsibility for the transformer outage information according to special, public transformer terminals
Transformer power failure ratio between higher level's disconnecting switch of pass；
Stop, charge determination unit, for when the transformer power failure ratio is less than predetermined threshold value, it is determined that the responsibility switch
Subordinate section be power failure section, the higher level section of responsibility switch is electrification section；
Wherein, when the transformer power failure ratio of computing unit output is more than or equal to predetermined threshold value, the responsibility is opened
It closes higher level's disconnecting switch that determination unit switchs the responsibility to switch as new responsibility, returns to the computing unit, it is described
The transformer power failure ratio of computing unit output is less than predetermined threshold value.
7. device according to claim 6, which is characterized in that further include：Line topological position determination unit, for being based on
Wire topologies figure and line fault information determine that the circuit for reporting the distribution line of line fault information to monitor terminal is opened up
It flutters position and does not report the line topological position of the distribution line monitoring terminal of line fault information.
8. device according to claim 6, which is characterized in that the fault section determination unit includes：
Initial position determining module, for the distribution line that reports line fault information farthest apart from substation to be monitored terminal
Initial position of the line topological position as fault section；
Judgment module does not report for using the initial position as starting point, judging to whether there is on far from substation direction
The distribution line of line fault information monitors terminal；
First end position determining module, the judging result for being exported when judgment module are that when being, line is not reported by first
First end position of the topology location of the distribution line monitoring terminal of road fault message as fault section；
Fisrt fault interval determination module, for determining Fisrt fault area according to the initial position and first end position
Between；
Second end position determining module, for will not report line fault information not across other of the Fisrt fault section
Distribution wire monitoring terminal end position of the topology location as other fault sections；
Fisrt fault interval mark module determines all faulty sections for marking the initial position and all end positions
Between；
Second fault section mark module, for that when the judging result that judgment module exports is no, will be with initial position then
Starting point, far from all circuits on substation direction as fault section.
9. device according to claim 6, which is characterized in that the computing unit includes：
Outage information acquisition module, the transformer outage information for obtaining special, public transformer terminals；
Power failure list sorting module, for according to the transformer outage information, generating transformer power failure list；
Number transformer statistical module, for according to the transformer power failure list, determining the responsibility switch and the responsibility
Total number transformer and the number transformer of execution power failure operation between higher level's disconnecting switch of switch；
Computing module, for calculating the transformation according to the quantity and transformer total quantity for the transformer for executing power failure operation
Device power failure ratio.
10. device according to claim 6, which is characterized in that further include display, alarm unit, for showing described stop
Electric section and fault section, and export power failure warning message.
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| CN106451442B (en) * | 2016-11-26 | 2020-06-26 | 国网安徽省电力公司宿州供电公司 | Power failure frequency determination method based on power distribution network topological structure |
| CN106707100A (en) * | 2016-12-07 | 2017-05-24 | 广东电网有限责任公司湛江供电局 | Method and system for implementing power failure judgement of 10kV branch line |
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