CN108152663A - A kind of electrical power distribution network fault location method and device - Google Patents
A kind of electrical power distribution network fault location method and device Download PDFInfo
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Abstract
A kind of electrical power distribution network fault location method and device, the method includes：Obtain the power distribution network multi-source information for fault location；Power equipment model and connection relation model are established according to electric power common information model；Global Topological analysis is carried out to power distribution network according to the power distribution network multi-source information, power equipment model and connection relation model and partial network topology obtains distribution network topology；Decision table is formed according to historical failure information and the distribution network topology；Yojan is carried out to the decision table according to comentropy；Obtain power distribution network real time fail information；The power distribution network real time fail information is matched into the level diagnosis to obtain distribution network failure as a result, realizing that quickly and accurately section occurs for determining failure with the decision table after about subtracting.
Description
Technical field
The present invention relates to technical field of electric power automation, and in particular to a kind of electrical power distribution network fault location method and device.
Background technology
In modern power systems, power plant is generally delivered power to by high pressure or supergrid in load
Then the heart is assigned to electric energy by the relatively low network of voltage class in load center the user of different voltages grade, wherein distribution
Net be electric system electric energy send out, become, giving, match in the last one link, be mainly risen in power network distribution electric energy effect net
Network connects the hinge of transmission system and vast power consumer, and this network that distribution electric energy is mainly responsible in power network is just
It is power distribution network.With city net and rural power grids complication and the continuous improvement of people's living standard so that electric utility is rapid
Development, the construction and transformation of distribution network be increasingly enhanced, further perfect network structure and hardware facility, but and flourishing state
Family compares, and China's power distribution network development level is not still high.
With the continuous promotion of power consumer living standard, user requires increasingly power supply quality and power supply reliability
Height, for power distribution network as the electric system for directly serving in users, it can observantly reflect user to power supply safety, quality etc.
The requirement of aspect, safety in operation, reliability and economy are directly related to social production and people’s lives, and according to statistics
For more than 80% source of failure in power distribution network, this, which just proposes power distribution network, can realize the quick accurate of failure in electric system
Analysis, positioning, isolation it is even made to restore the requirement of normal operation, minimize or avoid in the power supply of user so as to reach
It is disconnected, ensure the development of social economy and proposing for people's living standard.In quick positioning, isolated fault and restore non-faulting region
Meanwhile it is rough to determine that the region specifically having a power failure caused by failure can not only make staff influence energy for caused by failure
It solves, while can also determine the on off state and validation fault positioning result of final isolated fault again according to determining power supply interrupted district
Accuracy.So carrying out the positioning of fault element and determining for power supply interrupted district at any time after power distribution network breaks down, can carry
High staff for failure Grasping level and working efficiency, so as to improve the accuracy of various operations in troubleshooting
And the time of troubleshooting is substantially reduced, the reliability of power distribution network power supply is improved on the whole.
Power distribution network is using neutral point non-direct grounding system, i.e. small current neutral grounding system at present.In distribution network system,
Existing overhead line occur underground cable again, and also there are overhead lines and the situation of underground cable mixing laying.On overhead line
Singlephase earth fault accounts for more than 80% in the failure of generation, when singlephase earth fault occurs for small current neutral grounding system, due to list
Mutually ground connection does not form short-circuit loop, and the electric current that faulty line flows through is the sum of all non-fault line capacitive earth currents, failure
Electric current is much smaller than load current so that fault location is relatively difficult, it is impossible to quickly and accurately carry out fault location.Although due to
Power cable have it is higher than overhead transmission line reliability, occupied space is few, by adverse weather conditions it is smaller, be conducive to plant configuration and
The advantages that urban planning, but due to the influence of the factors such as mechanical damage, humidified insulation, insulation ag(e)ing, water tree, long-play
Power cable can also break down.Along with since power cable is embedded in underground more or is laid in cable duct, failure occurs
Afterwards, it is difficult to quickly and accurately measure the accurate location of the position of fault, it is impossible to fix a breakdown restore electricity in time, often make
Into the heavy economic losses for the halt production that has a power failure.Therefore, how to ensure the safe and reliable operation of power distribution network, fast and effeciently find failure
Circuit and position of failure point, have very important significance.
Invention content
The application provides a kind of electrical power distribution network fault location method and device, fast and effeciently finds faulty line and trouble point
Position.
According in a first aspect, provide a kind of electrical power distribution network fault location method in a kind of embodiment, including：It obtains for failure
The power distribution network multi-source information of positioning；Power equipment model and connection relation model are established according to electric power common information model；According to
The power distribution network multi-source information, power equipment model and connection relation model carry out power distribution network Global Topological analysis and part is opened up
It flutters analysis and obtains distribution network topology；Decision table is formed according to historical failure information and the distribution network topology；According to information
Entropy carries out yojan to the decision table；Obtain power distribution network real time fail information；By the power distribution network real time fail information with about subtracting
Decision table afterwards is matched the level diagnosis result to obtain distribution network failure.
Further, the power distribution network multi-source information includes：Breaker actuation information, reclosing information, voltage and current
Information, overcurrent warning message, switching-state information, distribution transforming overtemperature alarm information, distribution transforming phase shortage warning message, power distribution voltage get over line
Warning message, distribution transforming overload-alarm information and customer complaint information.
Further, the power equipment model is the primary element model in electric power networks, including circuit, switch and mother
The model of line；The connection relation model includes endpoint and the model of connecting node.
Further, the Global Topological analysis includes the following steps：Connecting node merger is formed into topological node；By institute
It states topological node merger and forms topological island.
Further, described the step of connecting node merger is formed into topological node, including：An electric power is arbitrarily chosen to set
For the connecting node in model and the connecting node is set as vertex；Closure between the vertex and other connecting nodes
Switch or busbar are side, form Connected undigraph；All connecting node merger in the Connected undigraph are formed into topology
Node；Traverse the connecting node in all power equipment models.
Further, the described the step of topological node merger is formed into topological island, including：Arbitrarily choose a conduction
The conductive equipment is simultaneously set as vertex by equipment；Topological node between the vertex and other power equipments forms nothing as side
To connected graph；All topological node merger in the Connected undigraph are formed into topological island；Traverse all conductive equipments.
Further, the partial network topology includes：When on off state changes, the connection of the switch ends is updated
Topological node belonging to node.
Further, the topological node belonging to the connecting node of the switch ends is updated when the switch is closed, including：When
When the connecting node of the switch ends belongs to same topological node before the switch is closed, without update；When the switch
When the connecting node of the switch ends adheres to different topological nodes separately before closure, the different topological node is merged.When
When switch disconnects, the topological node belonging to the connecting node of the switch ends is updated, including：With the connection of described switch one end
Node is vertex, and the switch or busbar of the closure between the vertex and other connecting nodes form undirected connection as side
Figure；When the connecting node that the switch other end is included in the Connected undigraph, without update；When the undirected connection
When not including the connecting node of the switch other end in figure, in the topological node belonging to connecting node in described switch one end
The connecting node of the switch other end is deleted, and is a new topology by the connecting node merger of the switch other end
Node.
According to second aspect, a kind of distribution network fault positioning device is provided in a kind of embodiment, including：Memory is used for
Store program；Processor performs the program of memory storage to realize as described in first aspect embodiment for passing through
Electrical power distribution network fault location method.
According to the third aspect, a kind of computer readable storage medium is provided in a kind of embodiment, which is characterized in that including journey
Sequence, described program can be executed by processor to realize the electrical power distribution network fault location method as described in first aspect embodiment.
It is not complete for distribution network automated transformation at present according to the electrical power distribution network fault location method and device of above-described embodiment
In the case of complete, breaking down can not be accurately positioned, and the drawbacks of being not easy to live O＆M, overhaul, merge multi-source information and simultaneously utilize base
Decision table is established in the topological relation of electric power common information model, then using the powerful yojan ability of rough set theory to above-mentioned
Raw information, which simplify, to be obtained multiple with original information equivalence yojan, then to yojan further abbreviation, is found certainly
The least reduction of plan table, and its decision rule is extracted, remove redundancy existing for fault message set.Again by receipt source in
The phone information that 95598 user malfunctions accepted report for repairment, finally the power supply area according to corresponding to the source of repair call can
Quickly and accurately to determine that section occurs for failure.And realize innovation at following aspect：
1) the multi-source data distinguishing hierarchy of distribution network failure positioning is had studied, is also primarily during entire fault location
How major problem is that effectively accurately fault element rough position and topology are determined using multi-source fault alarm information
Search starting point.The relative importance value of each warning message in same level is determined according to the effect played in topology search, so as to carry
The high efficiency of topology search.
2) the fault location model based on rough set theory forms decision table to multi-source data, passes through the yojan of decision table
To reduce consumption of the decision table to memory；If finally judging in taiwan area, Lou Dong is navigated to by the measuring tool body of calling together of intelligent electric meter
Even user.Solves the incomplete zone location blind area of distribution network automated transformation, the blindness of line walking improves the effect of diagnosis
Rate and corresponding accuracy rate.
Description of the drawings
Fig. 1 is the flow chart of the embodiment of the present invention 1；
Fig. 2 is the structure diagram of the embodiment of the present invention 2.
Specific embodiment
The present invention is described in further detail below by specific embodiment combination attached drawing.Wherein different embodiments
Middle similar component employs associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can be without lifting an eyebrow recognize, which part feature
It is dispensed or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
The general technology knowledge of description and this field in specification can completely understand relevant operation.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or action can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
As electric system scale is gradually increased, network structure is gradually complicated, and requirement of the user to powered stable is also got over
Come higher.This requires, on the one hand, the generation of failure is prevented in system normal course of operation；On the other hand, it is sent out in system
After raw failure, abort situation is quickly and accurately found, is fixed a breakdown rapidly, it is ensured that safe operation of power system improves power supply
Reliability, by minimization of loss.The positioning of distribution network failure section should utmostly utilize existing information, realize that information fusion is sentenced
It is disconnected, and then improve the accuracy of fault location.
Embodiment 1
Embodiment 1 discloses a kind of electrical power distribution network fault location method, as shown in Figure 1, it includes the following steps：
Step S101：Obtain the power distribution network multi-source information for fault location.In practical applications, power distribution network multi-source information
Including breaker actuation information, reclosing information, voltage and current information, overcurrent warning message, switching-state information, distribution transforming
Warm warning message, distribution transforming phase shortage warning message, power distribution voltage get over line warning message, distribution transforming overload-alarm information and customer complaint letter
Breath.
Step S102：Power equipment model and connection relation model are established according to electric power common information model.Power equipment
Model is the primary element model in electric power networks, includes the model of circuit, switch and busbar；Connection relation model includes endpoint
With the model of connecting node.In a specific embodiment, using the electric power common information model based on IEC61970 (referred to as
CIM model) carry out Modeling of Distribution Network.CIM describes the abstract data mould for all objects that electric system production process is related to
Type, with the shared class of these objects, attribute and its between relationship description electric power resource.CIM includes power equipment model and company
Connect relational model.Power equipment model is the model of all primary elements in electric power networks, including conductive equipment class
(ConductEquipment) and power transformer class (PowerTransformer)；Connection relation model defines conductive equipment
The electrical endpoint (Terminal) of class and the connecting node (ConnectivityNode) for forgiving one group of this kind of endpoint, electrical endpoint
And connecting node establishes the electric connecting relation between each equipment jointly.
CIM model describes the types of objects that electric system production process is related to, with object class and attribute and its between
Relationship power system resource described, between each class by being simply associated with, it is extensive connected each other with polymerization together with.
In CIM, power equipment model refers to the primary element model in electric power networks, such as circuit, switch, busbar etc., in Wires packets
Definition.Each power equipment model corresponds to a class in wires packets, and the inheritance between device model is as shown in Figure 1.
It can be found that equipment class is the parent of conductive equipment class and power transformer class.The equal slave device class of all equipment entity classes
(Equipment) it inherits, and conductive equipment class (ConductingEquipment) is substantially the base of all conductive equipments
Class.But power transformer class (PowerTransformer) is not from conductive equipment Similar integral, but power transformer
The set of two or three transformer windings (Transfonllerwinding) is considered as, one can be defined as therebetween
The relationship of kind of whole and part carries out advanced application during concrete application using this conversion relations.It in this way, can be with during network topology
Conductive equipment is only taken, without the concrete type of interested devices.What deserves to be explained is there was only bottom class ability in various equipment classes
Entity object is established, such as breaker class (Breaker)；And this middle transition class of conductive equipment class can not establish entity pair
As.Connection relation model is using the endpoint (Terminal) and tie point (ConnectivityNode) mould defined in CIM model
Type represents.Conductive equipment has the terminal of different number, and terminal is then the external electric interfaces of conductive equipment, such as switch tool
There are 2 terminals, generator only has 1 terminal, and the number of terminals that busbar contains is unrestricted, and situation is electrically connected according to practical
Depending on.Connecting node refers to that the terminal of conductive equipment on the nodes is linked together by zero impedance.If several endpoints
The tie point of direction is identical, represents that these endpoints are merged, and CIM model defines this conductive equipment class and endpoint, end
Incidence relation between point and tie point.In this way, endpoint and tie point establish the electric connecting relation between equipment jointly.
Step S103：According to the power distribution network multi-source information, power equipment model and connection relation model to power distribution network into
Row Global Topological is analyzed and partial network topology obtains distribution network topology.
The topological model of network is the basis of all-network analysis application, generally referred to as Bus/Branch models, be by
What the connecting node at closure switch both ends was formed after merging.It is defined according to CIM, topological analysis needs to establish connecting node and topology
Aggregation between node, topological node and topological island.CIM model in Topology packets is completely defined and is opened up very much
The class flutterred model and be related to.Bus/Branch models are the models based on topological node class (TopologicalNode), i.e., female
Line model, the model are mainly supplied to network analysis applications (such as state estimation, Dispatcher Power Flow etc.).When network topology more
Be concerned about influence of the on off state to network-in-dialing relationship or network topology using search switch as it is main when, using Switch/Node moulds
Type is more convenient, is easier.Power network topology relates generally to 5 classes：Conductive equipment class, terminal class, connecting node class, topological node class
With topological island class.Its topological node and topological island are the results models of Power Network Topology Analysis.Wherein, topological node is to pass through
One group of connecting node that closure switch (entity object that the subclass of switch classes generates) merge, topological island is the one of electric power networks
Electrical link is not present between topological island for the subsystem of a electrical connection.The purpose of power network topology analysis is exactly by electric power networks
The latticed form being made of topological node and non-zero impedance electrical equipment is simplified to, that is, meets the simplification net of Bus/Branch models
Network.
The topology analyzing method of embodiment 1 uses the mode that Global Topological and local topology are combined to reach topology at a high speed
Purpose.Global Topological is carried out, and carry out Global Topological with Fixed Time Interval timing for the data that the whole network newly inputs；And
When switch changed position, only Global Topological result need to be modified using simple and efficient local topology method can, and
It need not carry out time-consuming Global Topological.
Global Topological analysis refers to handle the CIM electric network datas newly inputted, forms the topological structure result of the whole network.
Generally completed by 2 steps：Connecting node merger is formed into topological node first, secondly topological node merger is formed
Topological island.In the information platform built according to IEC61970 standards, each entity object is created (for example, breaker, transformation
Device when) when in ORACLE databases a unique Major key is all assigned to distinguish and other entity objects.Therefore, often
All there are one unique Major keys for a entity object, can distinguish each entity, simplify the process of Power Network Topology Analysis.
In addition, the aggregation between connecting node and topological node, topological node and topological island has been also convenient for carrying out power equipment
Traversal, accelerates the completion of topological analysis.
In same topological node, using it includes connecting node as vertex, closure between connecting node is opened
It closes or busbar is side, tree-like or band a Connected undigraph can be formed.And a width figure corresponds to a topological node.It is logical
Cross all connecting nodes that can be found to graph traversal belonging to based on the topological node corresponding to the figure.Now by this to undirected
The traversal method of connected graph is referred to as " single topology point forms traversal ", and establishes java class " OneTNodeAnalyser " accordingly
To complete this functionality, and return to the connecting node traversed.If it is therefore all adopted this method in entire electric system
View is formed, it finds that there is a big non-interconnected non-directed graphs in whole system.It completes to incite somebody to action the graph traversal
To the topological node of whole network.This project traverses the whole network power equipment using Depth Priority Searching.Each
Connecting node belongs to a specific topological node, and connecting node class contains TopologicalNode attributes, therefore time
When going through to the connecting node that TopologicalNode attributes are sky, it is possible to be formed using above-mentioned graph traversal new
Topological node, the connecting node traversed is all grouped into this topological node.It will not relate to topology section in the process
The division and fusion of point, when whole network, which traverses, to be completed, Global Topological is also just completed therewith.Realize the tool of Global Topological analysis
Body step is：
(1) using equivalent source as base unit, topological analysis is carried out respectively, i.e., using not traversed power supply as traversing
Point forms topological node.
(2) according to connection relation model in CIM " one connecting node of conductive equipment end point ", using depth-first search time
Go through all connecting nodes.
(3) " single topology point formation time when often traversing a connecting node for not identifying and (not traversing mark), is carried out
Go through ", you can new topological node is formed, and searches all connecting nodes for belonging to this topological node.It is pointed out that this
Shi Ruguo traverses the connecting node that another power supply endpoint is connected, then identifies this power supply.
(4) also not traversed power supply is checked whether, if all marks, complete Global Topological；Otherwise, return to step
(1).Topological island is the one group of topological node to be linked together by non-zero impedance element (such as transformer, circuit).It can be
On the basis of topological node, using conductive equipment as vertex, the topological node between equipment is side, and traversal all devices and topology save
Point, forms topological island, and parser is similar to the parser of topological node.
When on off state changes, network topology needs to repartition topological node and topological island, to reflect current network
State.But in actual conditions, while the switch conjugated often only has a few.If network has been formd before this
Global Topological, then the topological analysis of whole network need not be regenerated at this time, as long as and the area that is related to index member
Domain carries out local correction.When the switch is closed, local topology is simpler, it is only necessary to compare the connecting node institute of switch ends
The topological node of category.If same topological node, then without any processing；If it is not, the two topologys are saved
Point merges.When the switches are opened, since the connecting node of switch ends belongs to same topological node before this, and shape is switched
The variation of state, which is likely to require, increases a new topological node, it is therefore desirable to which a point situation is handled.When passing through the switch one end
When connecting node carries out graph traversal, if traversing this switchs another connecting node, illustrate the electrical of switch ends
System still has, and does not need to again be topological, conversely, then needing to form new topological point.The specific step that partial network topology is implemented
It is rapid as follows：
(1) judge to become on off state, if being closed, go to step (2)；If disconnecting, step (3) is gone to.
(2) switch ends connecting node is taken, if belonging to same topological node, is not required to handle；Otherwise, merge two topology sections
Point is one.Then go to step (4).
(3) it takes away and closes one side connecting node, according to " conduction is not for one connecting node of end point " connection relation, carry out " single
Topology point forms traversal ", if traversing switch another side connecting node, do not deal with；Otherwise, the connecting node traversed is returned
The topological node new for one, and these connecting nodes are deleted in former topological node.Then go to step (4).
(4) it is finished if all change bit switches are processed, partial network topology is completed；Otherwise, step (1) is gone to.
Embodiment 1 carries out topological analysis using CIM model can find accurate power direction in non-directed graph, and accurate
Power direction can provide useful foundation for fault location, so as to help more accurate failure judgement element and power supply interrupted district.
Step S104：Decision table is formed according to historical failure information and the distribution network topology.Embodiment 1 is using coarse
The theoretical fault-tolerance for carrying out electric network failure diagnosis, substantially increasing diagnosis of collection.
Step S105：Yojan is carried out to the decision table according to comentropy.Embodiment 1 is determined using historical failure Sample Establishing
After plan table, using the old attribute reduction algorithms extraction best attributes yojan combination based on recognizable vector and comentropy, finally utilize
The fault diagnosis that the yojan decision table to be formed carries out power grid is combined in best attributes yojan, and decision is reduced by the yojan of decision table
Consumption of the table to memory.
Step S106：Obtain power distribution network real time fail information.In practical applications, power distribution network real time fail information can be
The phone repairing information that user is carried out by 95598 systems.
Step S107：Power distribution network real time fail information is matched to obtain distribution network failure with the decision table after about subtracting
Level diagnosis result.If judging in taiwan area, building even user is navigated to by the measuring tool body of calling together of intelligent electric meter.
The embodiment of the present invention 1 at present it is distribution network automated transformation completely in the case of, breaking down accurately to determine
Position the drawbacks of being not easy to live O＆M, overhaul, merges multi-source information and simultaneously utilizes the topological relation based on electric power common information model
Establish decision table, then using the powerful yojan ability of rough set theory to above-mentioned raw information carry out simplify obtain it is multiple with
The originally yojan of information equivalence then to yojan further abbreviation, finds the least reduction of decision table, and extract its decision
Rule removes redundancy existing for fault message set.The phone that the user malfunction accepted again by receipt source in 95598 reports for repairment
Information, finally the power supply area according to corresponding to the source of repair call can quickly and accurately determine failure occur section.
Embodiment 2
The embodiment of the present invention 2 provides a kind of distribution network fault positioning device, please refers to Fig.2, including memory 1 and processing
Device 2.Memory 1 is used to store program；Processor 2 is used to realize such as 1 institute of embodiment by performing the program of the storage of memory 1
The electrical power distribution network fault location method stated.
Embodiment 3
The embodiment of the present invention 3 provides a kind of computer readable storage medium, and including program, described program can be by processor
It performs to realize electrical power distribution network fault location method as described in Example 1.
It will be understood by those skilled in the art that all or part of function of various methods can pass through in the above embodiment
The mode of hardware is realized, can also be realized by way of computer program.When function all or part of in the above embodiment
When being realized by way of computer program, which can be stored in a computer readable storage medium, and storage medium can
To include：It is above-mentioned to realize to perform the program by computer for read-only memory, random access memory, disk, CD, hard disk etc.
Function.For example, program is stored in the memory of equipment, memory Program is performed when passing through processor, you can in realization
State all or part of function.In addition, when function all or part of in the above embodiment is realized by way of computer program
When, which can also be stored in the storage mediums such as server, another computer, disk, CD, flash disk or mobile hard disk
In, by carrying out version updating in download or copying and saving to the memory of local device or to the system of local device, when logical
When crossing the program in processor execution memory, you can realize all or part of function in the above embodiment.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not limiting
The system present invention.For those skilled in the art, thought according to the present invention can also be made several simple
It deduces, deform or replaces.
Claims (10)
1. a kind of electrical power distribution network fault location method, it is characterised in that including：
Obtain the power distribution network multi-source information for fault location；
Power equipment model and connection relation model are established according to electric power common information model；
Global Topological analysis is carried out to power distribution network according to the power distribution network multi-source information, power equipment model and connection relation model
Distribution network topology is obtained with partial network topology；
Decision table is formed according to historical failure information and the distribution network topology；
Yojan is carried out to the decision table according to comentropy；
Obtain power distribution network real time fail information；
The power distribution network real time fail information is matched and examined with the positioning for obtaining distribution network failure with the decision table after about subtracting
Disconnected result.
2. electrical power distribution network fault location method according to claim 1, which is characterized in that the power distribution network multi-source information packet
It includes：Breaker actuation information, reclosing information, voltage and current information, overcurrent warning message, switching-state information, distribution transforming
Warm warning message, distribution transforming phase shortage warning message, power distribution voltage get over line warning message, distribution transforming overload-alarm information and customer complaint letter
Breath.
3. electrical power distribution network fault location method according to claim 2, which is characterized in that the power equipment model is electric power
Primary element model in network includes the model of circuit, switch and busbar；The connection relation model includes endpoint and connection
The model of node.
4. electrical power distribution network fault location method according to claim 3, which is characterized in that Global Topological analysis include with
Lower step：
Connecting node merger is formed into topological node；
The topological node merger is formed into topological island.
5. electrical power distribution network fault location method according to claim 4, which is characterized in that described to form connecting node merger
The step of topological node, including：
It arbitrarily chooses the connecting node in a power equipment model and the connecting node is set as vertex；
The switch or busbar of closure between the vertex and other connecting nodes form Connected undigraph as side；
All connecting node merger in the Connected undigraph are formed into topological node；
Traverse the connecting node in all power equipment models.
6. electrical power distribution network fault location method according to claim 4, which is characterized in that described by the topological node merger
The step of forming topological island, including：
It arbitrarily chooses a conductive equipment and the conductive equipment is set as vertex；
Topological node between the vertex and other power equipments forms Connected undigraph as side；
All topological node merger in the Connected undigraph are formed into topological island；
Traverse all conductive equipments.
7. electrical power distribution network fault location method according to claim 3, which is characterized in that the partial network topology includes：
When on off state changes, the topological node belonging to the connecting node of the switch ends is updated.
8. electrical power distribution network fault location method according to claim 7, which is characterized in that opened described in update when the switch is closed
The topological node belonging to the connecting node at both ends is closed, including：
When the connecting node of the switch ends before the switch is closed belongs to same topological node, without update；
When the connecting node of the switch ends before the switch is closed adheres to different topological nodes separately, described different are opened up
Flutter node merging；
When the switches are opened, the topological node belonging to the connecting node of the switch ends is updated, including：
Using it is described switch one end connecting node as vertex, the switch of the closure between the vertex and other connecting nodes or
Person's busbar is side, forms Connected undigraph；
When the connecting node that the switch other end is included in the Connected undigraph, without update；
When the connecting node for not including the switch other end in the Connected undigraph, the connection section in described switch one end
Point belonging to topological node in delete it is described switch the other end connecting node, and by it is described switch the other end connecting node
Merger is a new topological node.
9. a kind of distribution network fault positioning device, which is characterized in that including：
Memory, for storing program；
Processor performs the program of memory storage to realize as described in any one of claim 1-8 for passing through
Electrical power distribution network fault location method.
10. a kind of computer readable storage medium, which is characterized in that including program, described program can be executed by processor with
Realize the electrical power distribution network fault location method as described in any one of claim 1-8.
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| CN109470998A (en) * | 2018-12-11 | 2019-03-15 | 江苏电力信息技术有限公司 | Failure judgment method is pressed in a kind of distribution based on various dimensions fault characteristic value |
| CN110456231A (en) * | 2019-08-29 | 2019-11-15 | 南方电网科学研究院有限责任公司 | A kind of non-power distribution network Multiple Fault Diagnosis Method perfected under fault message |
| CN110571802A (en) * | 2019-09-12 | 2019-12-13 | 国网山东省电力公司寿光市供电公司 | Power distribution network self-healing control method and device based on rough set dynamic planning model |
| CN110568275A (en) * | 2019-09-17 | 2019-12-13 | 国网福建省电力有限公司安溪县供电公司 | open-phase fault studying and judging method and system based on public and private power distribution network variable data |
| CN110907749A (en) * | 2019-11-19 | 2020-03-24 | 湖南国奥电力设备有限公司 | Method and device for positioning fault underground cable |
| CN110943759A (en) * | 2019-11-12 | 2020-03-31 | 国家电网有限公司信息通信分公司 | Electric power communication link data checking method based on depth-first search algorithm |
| CN110988601A (en) * | 2019-12-24 | 2020-04-10 | 云南电力技术有限责任公司 | Distribution network branch line fault positioning method and device |
| CN111061893A (en) * | 2019-12-27 | 2020-04-24 | 北京明略软件***有限公司 | Method and device for determining fault influence range |
| CN111650478A (en) * | 2020-07-15 | 2020-09-11 | 广东电网有限责任公司 | Power distribution network fault diagnosis and positioning method and gateway |
| CN113449015A (en) * | 2021-06-28 | 2021-09-28 | 国网北京市电力公司 | Power grid fault processing method and device and electronic equipment |
| CN113689308A (en) * | 2021-08-05 | 2021-11-23 | 北京航空航天大学 | Power supply system-level fault diagnosis based on dynamic fuzzy network and multi-source information fusion |
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| CN109470998B (en) * | 2018-12-11 | 2020-06-30 | 江苏电力信息技术有限公司 | Distribution network medium-voltage fault judgment method based on multi-dimensional fault characteristic quantity |
| CN109470998A (en) * | 2018-12-11 | 2019-03-15 | 江苏电力信息技术有限公司 | Failure judgment method is pressed in a kind of distribution based on various dimensions fault characteristic value |
| CN110456231A (en) * | 2019-08-29 | 2019-11-15 | 南方电网科学研究院有限责任公司 | A kind of non-power distribution network Multiple Fault Diagnosis Method perfected under fault message |
| CN110456231B (en) * | 2019-08-29 | 2020-07-28 | 南方电网科学研究院有限责任公司 | Power distribution network multiple fault diagnosis method under non-sound fault information |
| CN110571802A (en) * | 2019-09-12 | 2019-12-13 | 国网山东省电力公司寿光市供电公司 | Power distribution network self-healing control method and device based on rough set dynamic planning model |
| CN110568275A (en) * | 2019-09-17 | 2019-12-13 | 国网福建省电力有限公司安溪县供电公司 | open-phase fault studying and judging method and system based on public and private power distribution network variable data |
| CN110568275B (en) * | 2019-09-17 | 2022-02-01 | 国网福建省电力有限公司安溪县供电公司 | Open-phase fault studying and judging method and system based on public and private power distribution network variable data |
| CN110943759A (en) * | 2019-11-12 | 2020-03-31 | 国家电网有限公司信息通信分公司 | Electric power communication link data checking method based on depth-first search algorithm |
| CN110907749A (en) * | 2019-11-19 | 2020-03-24 | 湖南国奥电力设备有限公司 | Method and device for positioning fault underground cable |
| CN110988601A (en) * | 2019-12-24 | 2020-04-10 | 云南电力技术有限责任公司 | Distribution network branch line fault positioning method and device |
| CN111061893A (en) * | 2019-12-27 | 2020-04-24 | 北京明略软件***有限公司 | Method and device for determining fault influence range |
| CN111650478A (en) * | 2020-07-15 | 2020-09-11 | 广东电网有限责任公司 | Power distribution network fault diagnosis and positioning method and gateway |
| CN113449015A (en) * | 2021-06-28 | 2021-09-28 | 国网北京市电力公司 | Power grid fault processing method and device and electronic equipment |
| CN113689308A (en) * | 2021-08-05 | 2021-11-23 | 北京航空航天大学 | Power supply system-level fault diagnosis based on dynamic fuzzy network and multi-source information fusion |
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