CN117007912B - Distribution network line power failure analysis method, device, equipment and storage medium - Google Patents
Distribution network line power failure analysis method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN117007912B CN117007912B CN202311267116.7A CN202311267116A CN117007912B CN 117007912 B CN117007912 B CN 117007912B CN 202311267116 A CN202311267116 A CN 202311267116A CN 117007912 B CN117007912 B CN 117007912B
- Authority
- CN
- China
- Prior art keywords
- node
- line
- distribution network
- network line
- outage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004458 analytical method Methods 0.000 title claims abstract description 64
- 238000005192 partition Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 19
- 238000004891 communication Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computational Linguistics (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a distribution network line power failure analysis method, a device, equipment and a storage medium, which relate to the technical field of power grid fault identification and comprise the following steps: acquiring multi-dimensional power grid basic data; determining a first distribution network line power failure area based on distribution network line ledger data, power grid topology information and line switch state information; determining a power failure area of a second distribution network line based on distribution network line ledger data, power grid topology information and line operation data; determining a third distribution network line outage area based on line outage planning information; and comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result. According to the invention, the power outage areas of the distribution network lines are calculated according to different algorithms based on different basic data by collecting the multi-source basic data, and the power outage areas of all the distribution network lines are subjected to comparison analysis, so that the analysis result of the power outage areas is accurately obtained, and the analysis accuracy of the power outage areas is effectively improved.
Description
Technical Field
The invention relates to the technical field of power grid fault identification, in particular to a distribution network line power failure analysis method, a device, equipment and a storage medium.
Background
At present, with the development of intelligent power distribution network greatly pushed by national network companies, a considerable amount of intelligent monitoring devices are installed on a transformer substation, a distribution network line, a distribution station and low-voltage equipment, and the intelligent monitoring devices can monitor a great amount of generated real-time data and play an important role in reflecting the running state of a power grid or diagnosing the influence range of faults.
In recent years, intelligent monitoring devices have fully enabled image recognition technology for risk management. However, due to the complex conditions of the distribution network, the accuracy rate of image recognition is low, the recognition difficulty is high, manual rechecking is needed after the image recognition, and the problems of dead angles and the like exist in video supervision, so that a fault area and a power failure influence range are difficult to find.
Disclosure of Invention
The invention provides a distribution network line power failure analysis method, a distribution network line power failure analysis device, distribution network line power failure analysis equipment and a storage medium, and aims to improve the accuracy of power failure area analysis.
The invention provides a distribution network line power failure analysis method, which comprises the following steps:
acquiring multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information;
Determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information;
determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data;
determining a third distribution network line outage area based on the line outage planning information;
and comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
According to the method for analyzing power outage of a distribution network line provided by the invention, the determining a power outage area of a first distribution network line based on the distribution network line ledger data, the power grid topology information and the line switch state information comprises the following steps:
based on the distribution network line ledger data and the power grid topology information, constructing and obtaining a first topology node structure according to a preset line partition;
and circularly traversing each node in the first topological node structure to determine the power outage area of the first distribution network line based on the line switch state information and the node type of each node.
According to the method for analyzing power outage of a distribution network line, the steps of traversing each node in the first topological node structure in a circulating manner to determine the power outage area of the first distribution network line based on the line switch state information and the node type of each node include:
determining a first target node in the first topology node structure;
judging whether the node type of the first target node is a switch equipment node or a disconnecting link equipment node;
if yes, determining state information corresponding to the switch equipment node or the disconnecting link equipment node based on the line switch state information;
if the state information is in a disconnection state, taking a line section corresponding to the first target node as the first distribution network line power failure area;
and if the state information is in a closed state or the node type is not a switching device node or a disconnecting link device node, taking the next node of the first target node as a new first target node, and returning to the step of executing the judgment of whether the node type of the first target node is the switching device node or the disconnecting link device node until all nodes of the first topological node structure are traversed.
According to the method for analyzing power outage of a distribution network line provided by the invention, the determining a power outage area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data comprises the following steps:
based on the distribution network line ledger data and the power grid topology information, constructing a second topology node structure according to a preset line partition;
and circularly traversing each node in the second topological node structure to determine the power outage area of the second distribution network line based on the line operation data and the node type of each node.
According to the distribution network line outage analysis method provided by the invention, each node in the second topological node structure is traversed circularly, so that the second distribution network line outage area is determined based on the line operation data and the node type of each node, and the distribution network line outage analysis method comprises the following steps:
determining a second target node in the second topology node structure;
judging whether the node type of the second target node is a line equipment node or a station transformer equipment node;
if yes, determining operation data corresponding to the line equipment node or the station transformer equipment node based on the line operation data;
If the operation data is lower than a preset operation data threshold value, taking the line section corresponding to the second target node as the power failure area of the second distribution network line;
if the operation data is not lower than the preset operation data threshold value or the node type is not a line equipment node or a station change equipment node, taking the next node of the second target node as a new second target node, and returning to the step of executing the judgment of whether the node type of the second target node is the line equipment node or the station change equipment node until all nodes of the second topological node structure are traversed.
According to the method for analyzing the power outage of the distribution network line, the method for determining the power outage area of the third distribution network line based on the line power outage plan information comprises the following steps:
extracting name keywords of a power outage area from the line power outage plan information;
and based on the name keyword, performing association inquiry in the distribution network line ledger data, and determining the third distribution network line outage area.
According to the distribution network line outage analysis method provided by the invention, the acquisition of the multidimensional power grid basic data comprises the following steps:
Collecting distribution network line ledger data, power grid topology information, line switching state information, line operation data and line power failure planning information;
and correlating the network line ledger data, the line switch state information and the line operation data.
The invention also provides a distribution network line power failure analysis device, which comprises:
the acquisition module is used for acquiring the multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information;
the first determining module is used for determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information;
the second determining module is used for determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data;
the third determining module is used for determining a third distribution network line power failure area based on the line power failure planning information;
and the comparison analysis module is used for comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the distribution network line power failure analysis method according to any one of the above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a distribution network line outage analysis method as described in any of the above.
According to the distribution network line power failure analysis method, the distribution network line power failure analysis device, the distribution network line power failure analysis equipment and the storage medium, the distribution network line power failure areas are obtained through collecting the multi-source basic data and further calculating according to different algorithms based on different basic data, further, comparison analysis is carried out on all distribution network line power failure areas, the power failure area analysis results are accurately obtained, and the accuracy of the power failure area analysis is effectively improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described one by one, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a power outage analysis method for a distribution network line provided by the invention;
FIG. 2 is a flowchart illustrating a method for calculating a power outage area of a first distribution network according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a process for calculating a power outage area of a second distribution network according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a distribution network line outage analysis device provided by the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the one or more embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of the invention. As used in one or more embodiments of the invention, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present invention refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that, although the terms first, second, etc. may be used in one or more embodiments of the invention to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of one or more embodiments of the invention. The word "if" as used herein may be interpreted as "at … …" or "when … …", depending on the context.
Fig. 1 is a schematic flow chart of a power outage analysis method for a distribution network line. As shown in fig. 1, the power outage analysis method for the distribution network line includes:
step S11, obtaining multi-dimensional power grid basic data;
the multidimensional power grid basic data comprise information such as distribution network line ledger data, power grid topology information, line switch state information, line operation data, line power failure planning information and the like. The distribution network line ledger data comprise information such as line ID, line name, local city, transformer substation to which the line belongs, transformer name, transformer ID, line to which the transformer belongs, and tower number coordinates; the power grid topology information comprises power grid topology information of a transformer substation, a line, a transformer substation, a switch, a disconnecting link, pole tower equipment and the like; the line switch state information comprises information such as a transformer substation, a line name, a switch state, a disconnecting link name, a disconnecting link state, time and the like; the line operation data comprise operation data such as time, current and voltage of the transformer, and operation data such as current and voltage of the line; the line outage planning information comprises information such as line names and outage areas needing outage at the current time.
Specifically, multidimensional power grid basic data such as distribution network line ledger data, power grid topology information, line switch state information, line operation data, line power failure planning information and the like are collected. It should be noted that, since the collected basic data come from different systems and have no direct association relationship, in this embodiment, keywords in each basic data may be extracted, so that the association relationship is established according to the keywords, for example: and the data in the distribution network line ledger data and the line switch state information are associated and matched according to the transformer substation or the line name, so that subsequent quick matching is facilitated, and a power failure area corresponding to the current time point is determined.
Step S12, determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information;
specifically, after the distribution network line ledger data and the power grid topology information are associated according to transformer substations or line names, a first topology node structure can be constructed according to the distribution network line ledger data and the power grid topology information, and further, each node in the first topology node structure is traversed in a circulating manner, so that any node is aimed at: when the node belongs to a switching equipment node or a disconnecting link equipment node, determining the state information of the node according to the state information of the line switch, so as to determine the power failure area of the first distribution network line according to the state information of the node, wherein the state information comprises an opening state and a closing state.
Step S13, determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data;
specifically, a second topology node structure can be constructed according to the distribution network line ledger data and the power grid topology information, and further, each node in the second topology node structure is traversed in a circulating manner, so that any node is targeted: when the node belongs to a line equipment node or the station transformer equipment node, inquiring the operation data of the node according to the line operation data, wherein the operation data comprises data such as current data and voltage data, and further determining the power failure area of the second distribution network line according to the operation data such as the operation data or the voltage data.
Step S14, determining a third distribution network line outage area based on the line outage planning information;
specifically, based on the line outage plan information, name keywords corresponding to the outage line and/or outage area which need to be outage at the current time are extracted, for example, a regular expression is used for extracting the outage line and/or outage area in the line outage plan information to obtain the name keywords. Further, according to the name key words corresponding to the power outage lines and/or the power outage areas, correlation matching is carried out on the related data in the distribution network line ledger data, so that the power outage areas of the third distribution network lines are determined.
And S15, comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
Specifically, the power outage area of the first distribution network line, the power outage area of the second distribution network line and the power outage area of the third distribution network line are subjected to comparison analysis, and a power outage area analysis result is obtained, namely, the power outage areas calculated by a plurality of algorithms are compared, so that a final parking area analysis result is accurately determined, the power outage area analysis result is displayed, and therefore relevant staff can monitor and view the power outage area analysis result.
According to the embodiment of the invention, the power outage area of the distribution network line is obtained by collecting the multi-source basic data and further calculating according to different algorithms based on different basic data, and further, the comparison analysis is carried out on the power outage areas of all the distribution network lines, so that the analysis result of the power outage area is accurately obtained, manual monitoring is not needed, and the accuracy of the analysis of the power outage area is effectively improved.
In one embodiment of the present invention, determining a first distribution network line outage area based on the distribution network line ledger data, the grid topology information, and the line switch state information includes:
Step S21, constructing and obtaining a first topological node structure according to a preset line partition based on the distribution network line ledger data and the power grid topology information;
step S22, circulating through each node in the first topological node structure to determine the power outage area of the first distribution network line based on the line switch state information and the node type of each node.
It should be noted that the line partition may be set according to practical situations, for example, according to cell division. Specifically, a first topological node structure is constructed according to the line partition based on the information of lines, switches, knife switches and the like in the distribution network line ledger data and the power grid topological information.
Further, for each line partition, a first topology node structure: determining a first target node in the first topological node structure, wherein the first target node is optionally a starting point node for starting traversing the first topological node structure, so that the first target node is taken as a starting point, and each node in the first topological node structure is started to be traversed.
Further, the determining the first distribution network line outage area based on the line switch status information and the node type of each node, optionally, the node type includes a type such as a switching device node, a barrier device node, a line device node, or a station transformer device node, and the determining process of the first distribution network line outage area is specifically described in the following embodiments and will not be described herein.
According to the embodiment of the invention, the first topological node structure is constructed according to the distribution network line ledger data and the power grid topological information, so that all nodes in the first topological node structure are traversed circularly, and the distribution network line outage area is accurately searched and obtained by combining node types corresponding to the nodes and line switch state information without manual inspection.
In one embodiment of the present invention, cycling through each node in the first topology node structure to determine the first distribution network line outage region based on the line switch state information and the node type of each node includes:
step S31, determining a first target node in the first topological node structure;
it should be noted that, the first target node represents a starting node that starts traversing the first topology node structure. Optionally, selecting a line starting point or other wiring positions of the line partition as a first target node according to the distribution network line ledger data, so as to circularly traverse each node in the first topological node structure by taking the first target node as a starting point.
Step S32, judging whether the node type of the first target node is a switch equipment node or a disconnecting link equipment node;
Step S33, if yes, determining state information corresponding to the switch equipment node or the disconnecting link equipment node based on the line switch state information;
specifically, whether the node type of the first target node is a switching equipment node or a disconnecting link equipment node is judged, and if the node type is the switching equipment node or the disconnecting link equipment node, state information corresponding to the switching equipment node or the disconnecting link equipment node is inquired in the line switching state information.
Step S34, if the state information is in a disconnection state, taking the line section corresponding to the first target node as the first distribution network line power failure area;
specifically, judging whether the state information of the switch equipment node or the disconnecting link equipment node is in an off state or not; and if the state information is in a disconnection state, proving that the line area corresponding to the first target node is in a power failure state, and further taking the line section corresponding to the first target node as the power failure area of the first distribution network line.
Additionally, after outputting the line section corresponding to the first target node, a new starting point may be redetermined in the first topology node structure, that is, the step of determining the first target node in the first topology node structure is redelivered, so as to find out the line area where all the state information in the first topology node structure is in the disconnection state, thereby obtaining the first distribution network line outage area.
Step S35, if the state information is a closed state, or the node type is not a switching device node or a disconnecting link device node, taking a next node of the first target node as a new first target node, and returning to execute the step of determining whether the node type of the first target node is a switching device node or a disconnecting link device node, until all nodes of the first topology node structure are traversed.
Specifically, if the state information is in a closed state, or the node type is not a switching device node or a disconnecting link device node, continuing to traverse the next node in the first topology node structure, and further taking the next node of the first target node as a new first target node, thereby returning to execute the step of judging whether the node type of the first target node is a switching device node or a disconnecting link device node, until traversing all nodes of the first topology node structure is completed.
According to the embodiment of the invention, the starting point node for starting traversing is determined, and then the line section in the disconnection state is inquired and obtained according to the node type and the state information of the node, so that manual inspection is not needed, and the distribution network line power failure area is accurately searched and obtained.
It can be understood that, as shown in fig. 2, fig. 2 is a flow chart of calculating a power outage area of a first distribution network line according to an embodiment of the present invention. Specifically, a first topological node structure is constructed according to the information of a line, a switch, a disconnecting link and the like in the distribution network line ledger data and the power grid topology information according to the line partition, and then a line starting point or other wiring positions of the line partition are selected as a first target node, so that each node in the first topological node structure is traversed by taking the first target node as a starting point. In the traversal process, whether the node type of the first target node is a switching equipment node or a disconnecting link equipment node needs to be judged, if yes, state information corresponding to the switching equipment node or the disconnecting link equipment node is determined according to the line switching state information. And if the state information is in a disconnection state, proving that the line area corresponding to the first target node is in a power failure state, and further taking the line section corresponding to the first target node as the power failure area of the first distribution network line. Additionally, if the state information is in a closed state, or the node type is not a switching device node or a disconnecting link device node, taking a next node of the first target node as a new first target node, and repeating the step of judging whether the node type of the first target node is the switching device node or the disconnecting link device node until all nodes of the first topology node structure are traversed.
In one embodiment of the present invention, determining a second distribution network line outage area based on the distribution network line ledger data, the grid topology information, and the line operation data includes:
step S41, constructing a second topological node structure according to a preset line partition based on the distribution network line ledger data and the power grid topology information;
step S42, circulating through each node in the second topological node structure to determine the power failure area of the second distribution network line based on the line operation data and the node type of each node.
Specifically, based on the information of the lines, the transformer stations and the like in the distribution network line ledger data and the power grid topology information, a second topology node structure is constructed according to the line partition. Further, for each line partition, a second topology node structure: determining a second target node in the second topological node structure, optionally, the second target node represents a starting point node for starting traversing the second topological node structure, so that the second target node is taken as a starting point, and traversing each node in the first topological node structure is started.
Further, the determining the second distribution network line outage area is determined based on the line operation data and the node type of each node, and optionally, the node type includes a type of a switching device node, a gateway device node, a line device node, or a station transformer device node, etc., where the determining process of the second distribution network line outage area is specifically described in the following embodiments and is not described herein.
According to the embodiment of the invention, the second topological node structure is constructed according to the distribution network line ledger data and the power grid topological information, so that all nodes in the second topological node structure are traversed circularly, and the distribution network line outage area is accurately searched and obtained by combining the node types corresponding to the nodes and line operation data without manual inspection.
In one embodiment of the present invention, the looping through each node in the second topology node structure to determine the second distribution network line outage region based on the line operation data and a node type of each node includes:
step S51, determining a second target node in the second topological node structure;
it should be noted that the second target node represents a starting node traversing the second topology node structure. Optionally, selecting a line starting point or other wiring positions of the line partition as a second target node according to the distribution network line ledger data, so as to traverse each node in the second topological node structure by taking the second target node as a starting point.
Step S52, judging whether the node type of the second target node is a line equipment node or a station transformer equipment node;
step S53, if yes, determining operation data corresponding to the line equipment node or the station transformer equipment node based on the line operation data;
specifically, whether the node type of the second target node is a line equipment node or a station transformer equipment node is judged, if yes, operation data such as current data or voltage data corresponding to the line equipment node or the station transformer equipment node is inquired and determined in the line operation data.
Step S54, if the operation data is lower than a preset operation data threshold, taking the line section corresponding to the second target node as the power outage area of the second distribution network line;
specifically, comparing the operation data with the preset operation data threshold, where the preset operation data threshold may be set according to actual situations, if the operation data is lower than the preset operation data threshold, it is proved that the line area corresponding to the second target node is in a power outage state, and then the line area corresponding to the second target node is used as the power outage area of the second distribution network line.
Additionally, after outputting the line section corresponding to the second target node, a new starting point may be redetermined in the second topology node structure, that is, the step of determining the second target node in the second topology node structure is redelivered, so as to find out the line area where all the operation data in the second topology node structure is lower than the preset operation data threshold value, thereby obtaining the first distribution network line outage area.
Step S55, if the operation data is not lower than the preset operation data threshold, or the node type is not the line equipment node or the station transformer equipment node, taking the next node of the second target node as a new second target node, and returning to execute the step of judging whether the node type of the second target node is the line equipment node or the station transformer equipment node, until the traversal is completed on all the nodes of the second topology node structure.
Specifically, if the operation data is not lower than the preset operation data threshold, or the node type is not the line equipment node or the station change equipment node, continuing to traverse the next node in the second topological node structure, and further taking the next node of the second target node as a new second target node, thereby returning to execute the step of judging whether the node type of the second target node is the line equipment node or the station change equipment node, until traversing is completed on all nodes of the second topological node structure.
According to the embodiment of the invention, the target node which starts to traverse is determined, and then the line section with the operation data lower than the preset operation data threshold value is inquired and obtained according to the node type, the current or voltage of the node and other operation data, so that manual inspection is not needed, and the distribution network line power failure area is accurately searched and obtained.
It can be understood that, as shown in fig. 3, fig. 3 is a flowchart illustrating a process of calculating a power outage area of a second distribution network according to an embodiment of the present invention. Specifically, firstly, based on information such as a line and a transformer in the distribution network line ledger data and the power grid topology information, a second topology node structure is constructed according to the line partition, whether the node type of the second target node is a line equipment node or a transformer equipment node is judged, and if the node type is the line equipment node or the transformer equipment node, operation data such as current data or voltage data corresponding to the line equipment node or the transformer equipment node is determined in the line operation data. And if the operation data is lower than a preset operation data threshold value, proving that the line area corresponding to the second target node is in a power failure state, and taking the line section as the power failure area of the second distribution network line. Otherwise, if the operation data is not lower than the preset operation data threshold, or the node type is not the line equipment node or the station change equipment node, continuing to traverse the next node in the second topology node structure, further taking the next node of the second target node as a new second target node, and returning to execute the step of judging whether the node type of the second target node is the line equipment node or the station change equipment node again until the traversing is completed on all nodes of the second topology node structure.
The power outage analysis device for the distribution network line provided by the invention is described below, and the power outage analysis device for the distribution network line described below and the power outage analysis method for the distribution network line described above can be referred to correspondingly.
Fig. 4 is a schematic structural diagram of a power outage analysis device for a distribution network line, as shown in fig. 4, according to an embodiment of the present invention, the device includes:
an acquisition module 41, configured to acquire multidimensional grid base data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information;
a first determining module 42, configured to determine a first distribution network line outage area based on the distribution network line ledger data, the power grid topology information and the line switch status information;
a second determining module 43, configured to determine a second distribution network line outage area based on the distribution network line ledger data, the power grid topology information and the line operation data;
a third determining module 44, configured to determine a third distribution network line outage area based on the line outage planning information;
and the comparison analysis module 45 is configured to perform comparison analysis on the power outage area of the first distribution network line, the power outage area of the second distribution network line, and the power outage area of the third distribution network line, so as to obtain a power outage area analysis result.
The first determining module 42 is further configured to:
based on the distribution network line ledger data and the power grid topology information, constructing and obtaining a first topology node structure according to a preset line partition;
and circularly traversing each node in the first topological node structure to determine the power outage area of the first distribution network line based on the line switch state information and the node type of each node.
The first determining module 42 is further configured to:
determining a first target node in the first topology node structure;
judging whether the node type of the first target node is a switch equipment node or a disconnecting link equipment node;
if yes, determining state information corresponding to the switch equipment node or the disconnecting link equipment node based on the line switch state information;
if the state information is in a disconnection state, taking a line section corresponding to the first target node as the first distribution network line power failure area;
and if the state information is in a closed state or the node type is not a switching device node or a disconnecting link device node, taking the next node of the first target node as a new first target node, and returning to the step of executing the judgment of whether the node type of the first target node is the switching device node or the disconnecting link device node until all nodes of the first topological node structure are traversed.
The second determining module 43 is further configured to:
based on the distribution network line ledger data and the power grid topology information, constructing a second topology node structure according to a preset line partition;
and circularly traversing each node in the second topological node structure to determine the power outage area of the second distribution network line based on the line operation data and the node type of each node.
The second determining module 43 is further configured to:
determining a second target node in the second topology node structure;
judging whether the node type of the second target node is a line equipment node or a station transformer equipment node;
if yes, determining operation data corresponding to the line equipment node or the station transformer equipment node based on the line operation data;
if the operation data is lower than a preset operation data threshold value, taking the line section corresponding to the second target node as the power failure area of the second distribution network line;
if the operation data is not lower than the preset operation data threshold value or the node type is not a line equipment node or a station change equipment node, taking the next node of the second target node as a new second target node, and returning to the step of executing the judgment of whether the node type of the second target node is the line equipment node or the station change equipment node until all nodes of the second topological node structure are traversed.
The third determining module 44 is further configured to:
extracting name keywords of a power outage area from the line power outage plan information;
and based on the name keyword, performing association inquiry in the distribution network line ledger data, and determining the third distribution network line outage area.
The acquisition module 41 is further configured to:
collecting distribution network line ledger data, power grid topology information, line switching state information, line operation data and line power failure planning information;
and correlating the network line ledger data, the power grid topology information, the line switch state information and the line operation data.
It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted.
Fig. 5 is a schematic structural diagram of an electronic device according to the present invention, and as shown in fig. 5, the electronic device may include: processor 510, memory 520, communication interface (Communications Interface) 530, and communication bus 540, wherein processor 510, memory 520, and communication interface 530 communicate with each other via communication bus 540. Processor 510 may invoke logic instructions in memory 520 to perform a distribution network line outage analysis method comprising: acquiring multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information; determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information; determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data; determining a third distribution network line outage area based on the line outage planning information; and comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
Further, the logic instructions in the memory 520 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor is implemented to perform the method for analyzing power outage of a distribution network line provided by the above methods, the method comprising: acquiring multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information; determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information; determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data; determining a third distribution network line outage area based on the line outage planning information; and comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The distribution network line power failure analysis method is characterized by comprising the following steps of:
acquiring multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information;
determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information;
determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data;
determining a third distribution network line outage area based on the line outage planning information;
And comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
2. The distribution network line outage analysis method according to claim 1, wherein the determining a first distribution network line outage area based on the distribution network line ledger data, the grid topology information, and the line switch state information comprises:
based on the distribution network line ledger data and the power grid topology information, constructing and obtaining a first topology node structure according to a preset line partition;
and circularly traversing each node in the first topological node structure to determine the power outage area of the first distribution network line based on the line switch state information and the node type of each node.
3. The distribution network line outage analysis method according to claim 2, wherein the cyclically traversing each node in the first topology node structure to determine the first distribution network line outage region based on the line switch state information and the node type of each node comprises:
determining a first target node in the first topology node structure;
Judging whether the node type of the first target node is a switch equipment node or a disconnecting link equipment node;
if yes, determining state information corresponding to the switch equipment node or the disconnecting link equipment node based on the line switch state information;
if the state information is in a disconnection state, taking a line section corresponding to the first target node as the first distribution network line power failure area;
and if the state information is in a closed state or the node type is not a switching device node or a disconnecting link device node, taking the next node of the first target node as a new first target node, and returning to the step of executing the judgment of whether the node type of the first target node is the switching device node or the disconnecting link device node until all nodes of the first topological node structure are traversed.
4. The distribution network line outage analysis method according to claim 1, wherein the determining a second distribution network line outage area based on the distribution network line ledger data, the grid topology information, and the line operation data comprises:
based on the distribution network line ledger data and the power grid topology information, constructing a second topology node structure according to a preset line partition;
And circularly traversing each node in the second topological node structure to determine the power outage area of the second distribution network line based on the line operation data and the node type of each node.
5. The distribution network line outage analysis method according to claim 4, wherein the cyclically traversing each node in the second topology node structure to determine the second distribution network line outage region based on the line operation data and the node type of each node comprises:
determining a second target node in the second topology node structure;
judging whether the node type of the second target node is a line equipment node or a station transformer equipment node;
if yes, determining operation data corresponding to the line equipment node or the station transformer equipment node based on the line operation data;
if the operation data is lower than a preset operation data threshold value, taking the line section corresponding to the second target node as the power failure area of the second distribution network line;
if the operation data is not lower than the preset operation data threshold value or the node type is not a line equipment node or a station change equipment node, taking the next node of the second target node as a new second target node, and returning to the step of executing the judgment of whether the node type of the second target node is the line equipment node or the station change equipment node until all nodes of the second topological node structure are traversed.
6. The distribution network line outage analysis method according to claim 1, wherein determining a third distribution network line outage area based on the line outage planning information comprises:
extracting name keywords of a power outage area from the line power outage plan information;
and based on the name keyword, performing association inquiry in the distribution network line ledger data, and determining the third distribution network line outage area.
7. The distribution network line outage analysis method according to claim 1, wherein the obtaining the multidimensional grid base data comprises:
collecting distribution network line ledger data, power grid topology information, line switching state information, line operation data and line power failure planning information;
and correlating the network line ledger data, the power grid topology information, the line switch state information and the line operation data.
8. A distribution network line outage analysis device, comprising:
the acquisition module is used for acquiring the multi-dimensional power grid basic data; the multidimensional power grid basic data comprise distribution network line ledger data, power grid topology information, line switch state information, line operation data and line power failure planning information;
The first determining module is used for determining a first distribution network line power failure area based on the distribution network line ledger data, the power grid topology information and the line switch state information;
the second determining module is used for determining a power failure area of a second distribution network line based on the distribution network line ledger data, the power grid topology information and the line operation data;
the third determining module is used for determining a third distribution network line power failure area based on the line power failure planning information;
and the comparison analysis module is used for comparing and analyzing the power outage areas of the first distribution network line, the second distribution network line and the third distribution network line to obtain a power outage area analysis result.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor implements the distribution network line outage analysis method according to any one of claims 1 to 7 when the program is executed by the processor.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a distribution network line outage analysis method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267116.7A CN117007912B (en) | 2023-09-28 | 2023-09-28 | Distribution network line power failure analysis method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267116.7A CN117007912B (en) | 2023-09-28 | 2023-09-28 | Distribution network line power failure analysis method, device, equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117007912A CN117007912A (en) | 2023-11-07 |
| CN117007912B true CN117007912B (en) | 2023-12-01 |
Family
ID=88562153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311267116.7A Active CN117007912B (en) | 2023-09-28 | 2023-09-28 | Distribution network line power failure analysis method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117007912B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287294A (en) * | 2018-01-29 | 2018-07-17 | 国网江苏省电力有限公司电力科学研究院 | Distribution network failure region Fast Identification Method based on power failure distribution transforming and topological analysis |
| CN110851549A (en) * | 2019-10-21 | 2020-02-28 | 国网安徽省电力有限公司安庆供电公司 | Power failure range visualization method based on GIS and power grid topology |
| CN111157842A (en) * | 2019-12-31 | 2020-05-15 | 浙江华云信息科技有限公司 | Power distribution line distribution transformer power failure fault studying and judging method based on power grid topology |
| CN111967658A (en) * | 2020-07-31 | 2020-11-20 | 广东卓维网络有限公司 | Comprehensive power failure analysis method based on marketing and distribution information integration platform |
| CN112763846A (en) * | 2020-12-23 | 2021-05-07 | 国网河南省电力公司电力科学研究院 | Multi-data source information fusion-based intelligent power failure judgment method for distribution line |
| CN114596171A (en) * | 2022-02-17 | 2022-06-07 | 国网山西省电力公司营销服务中心 | Power failure event intelligent analysis method based on multi-source data fusion |
| CN114722340A (en) * | 2022-04-19 | 2022-07-08 | 国网四川省电力公司电力科学研究院 | Power distribution network power failure range analysis method |
| CN115940134A (en) * | 2022-11-15 | 2023-04-07 | 贵州电网有限责任公司 | Distribution network data analysis processing method based on fault-tolerant data |
| CN116562852A (en) * | 2023-05-17 | 2023-08-08 | 国网安徽省电力有限公司黄山供电公司 | Distribution network power failure information management system based on knowledge graph |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210294826A1 (en) * | 2018-02-09 | 2021-09-23 | Longyu CHEN | Modeling Analysis Method for Equipment Management Network and Electronic Equipment |
-
2023
- 2023-09-28 CN CN202311267116.7A patent/CN117007912B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287294A (en) * | 2018-01-29 | 2018-07-17 | 国网江苏省电力有限公司电力科学研究院 | Distribution network failure region Fast Identification Method based on power failure distribution transforming and topological analysis |
| CN110851549A (en) * | 2019-10-21 | 2020-02-28 | 国网安徽省电力有限公司安庆供电公司 | Power failure range visualization method based on GIS and power grid topology |
| CN111157842A (en) * | 2019-12-31 | 2020-05-15 | 浙江华云信息科技有限公司 | Power distribution line distribution transformer power failure fault studying and judging method based on power grid topology |
| CN111967658A (en) * | 2020-07-31 | 2020-11-20 | 广东卓维网络有限公司 | Comprehensive power failure analysis method based on marketing and distribution information integration platform |
| CN112763846A (en) * | 2020-12-23 | 2021-05-07 | 国网河南省电力公司电力科学研究院 | Multi-data source information fusion-based intelligent power failure judgment method for distribution line |
| CN114596171A (en) * | 2022-02-17 | 2022-06-07 | 国网山西省电力公司营销服务中心 | Power failure event intelligent analysis method based on multi-source data fusion |
| CN114722340A (en) * | 2022-04-19 | 2022-07-08 | 国网四川省电力公司电力科学研究院 | Power distribution network power failure range analysis method |
| CN115940134A (en) * | 2022-11-15 | 2023-04-07 | 贵州电网有限责任公司 | Distribution network data analysis processing method based on fault-tolerant data |
| CN116562852A (en) * | 2023-05-17 | 2023-08-08 | 国网安徽省电力有限公司黄山供电公司 | Distribution network power failure information management system based on knowledge graph |
Non-Patent Citations (1)
| Title |
|---|
| 基于Apriori关联算法的配电网运行大数据关联分析模型;韩博闻;上海电力学院学报;第34卷(第02期);第163-168、195页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117007912A (en) | 2023-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111064180B (en) | Medium-voltage distribution network topology detection and identification method based on AMI (advanced mechanical arm) power flow matching | |
| CN110826895A (en) | Method for identifying topology of transformer area | |
| CN110095661B (en) | Distribution transformer high-voltage side open-phase fault first-aid repair method | |
| EP3968479A1 (en) | Systems and methods for automatic power topology discovery | |
| CN110610330A (en) | Intelligent pump station operation and maintenance method | |
| CN113740666B (en) | Method for positioning root fault of storm alarm in power system of data center | |
| CN115345466A (en) | Power distribution network online evaluation system based on network frame topology and multi-source data fusion | |
| CN114726740A (en) | Method and system for identifying platform area topology and intelligent fusion terminal | |
| CN107742883A (en) | A kind of power system topology island system for rapidly identifying and method based on Spark | |
| CN112965990A (en) | Low-voltage contact cabinet fault solution generation method and device | |
| CN117007912B (en) | Distribution network line power failure analysis method, device, equipment and storage medium | |
| Zhang et al. | Research on power grid fault diagnosis based on a quantitative representation of alarm information | |
| CN111060780B (en) | Probability evaluation method for fault tolerance online fault location of power distribution network | |
| CN111157842B (en) | Power distribution line distribution transformer power failure fault studying and judging method based on power grid topology | |
| CN104901328A (en) | Multi-terminal flexible DC control mode automatic identification method based on complex control network | |
| WO2019223118A1 (en) | Method and apparatus for evaluating reliability of wide area protection system | |
| CN109245098A (en) | Generation method, device and the storage medium of fault set in a kind of analysis of power grid security | |
| CN115809761B (en) | Voltage quality analysis method and system based on low-voltage transformer area | |
| Huang et al. | A GBDT Algorithm Based Approach to Power Equipment Defect Data Mining and Analysis | |
| CN113569904B (en) | Bus wiring type identification method, system, storage medium and computing device | |
| CN117517862B (en) | Fault positioning method and device for power distribution network | |
| Liu et al. | Review of abnormal data identification and correction techniques in active distribution networks | |
| CN116298675B (en) | Intelligent algorithm-based power distribution network line loss anomaly detection method and system | |
| CN114123201B (en) | Low-voltage power distribution topology identification method and system | |
| Zhao et al. | Research on machine learning-based correlation analysis method for power equipment alarms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |