CN117269674A - Fault positioning method, device, equipment and storage medium for transmission and distribution network - Google Patents
Fault positioning method, device, equipment and storage medium for transmission and distribution network Download PDFInfo
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- CN117269674A CN117269674A CN202311351914.8A CN202311351914A CN117269674A CN 117269674 A CN117269674 A CN 117269674A CN 202311351914 A CN202311351914 A CN 202311351914A CN 117269674 A CN117269674 A CN 117269674A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- 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
- G01R31/088—Aspects of digital computing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a fault positioning method, device and equipment for a transmission and distribution network and a storage medium, and belongs to the technical field of data processing and the technical field of power grids. The method comprises the following steps: obtaining geographic coordinates of power equipment in a transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer; generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment; and when detecting that a line fault occurs in the line in the transmission and distribution network, determining a fault interval according to the fault current and the geographic wiring diagram. Through the technical scheme, the fault positions in the transmission and distribution network can be rapidly positioned.
Description
Technical Field
The invention relates to the technical field of data processing and the technical field of power grids, in particular to a fault positioning method, device and equipment for a transmission and distribution network and a storage medium.
Background
At present, the failure rate of a power transmission and distribution line is high, most of power line equipment is located on a cliff of a mountain, after the line fails, the difficulty of fault finding is very high, the time consumption is relatively long, the risk of carrying out inspection and rush repair operation in severe weather is high, and the occurrence of casualties is easy to cause. Particularly, after the transient fault occurs, the occurrence reason is difficult to find, particularly the transient fault caused by the defect of the partially hidden equipment is difficult to find out by means of inspection, and the transient fault is very easy to change into a permanent fault during long-term operation. Therefore, an effective power transmission and distribution fault location method is needed.
Disclosure of Invention
The invention provides a fault positioning method, device, equipment and storage medium for a transmission and distribution network, which are used for rapidly positioning the fault position in the transmission and distribution network.
According to an aspect of the invention, there is provided a power transmission and distribution fault locating method, which includes:
obtaining geographic coordinates of power equipment in a transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer;
generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment;
and when detecting that a line fault occurs in the line in the transmission and distribution network, determining a fault interval according to the fault current and the geographic wiring diagram.
According to another aspect of the present invention, there is provided a power transmission and distribution fault locating device, the device comprising:
the geographic coordinate acquisition module is used for acquiring geographic coordinates of power equipment in the transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer;
the geographical wiring diagram generation module is used for generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment;
and the fault interval determining module is used for determining a fault interval according to the fault current and the geographic wiring diagram when the line faults in the lines in the transmission and distribution network are detected.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the power transmission and distribution fault location method according to any one of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the power transmission and distribution fault location method according to any embodiment of the present invention when executed.
According to the technical scheme, geographic coordinates of power equipment in the transmission and distribution network are obtained; the power equipment comprises a pole tower, a tapping box and a box transformer substation, and then a geographical wiring diagram of the power transmission and distribution network is generated according to a static network structure and a tree-shaped application structure in the power transmission and distribution network and geographical coordinates of the power equipment, and then when line faults in the lines in the power transmission and distribution network are detected, a fault interval is determined according to fault currents and the geographical wiring diagram. According to the technical scheme, the fault interval can be positioned in an express way based on the geographic wiring diagram and the fault current, so that related personnel can check and overhaul the fault in time, and the safety of the power transmission and distribution line is improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a power transmission and distribution fault locating method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a power transmission and distribution fault positioning method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fault location device for power transmission and distribution according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device implementing the power transmission and distribution fault locating method according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only 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 present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In addition, in the technical scheme of the invention, the processing such as collection, storage, use, processing, transmission, provision and disclosure of related data and the like of the related power equipment accords with the regulations of related laws and regulations and does not violate the public welfare.
Example 1
Fig. 1 is a flowchart of a power transmission and distribution fault locating method according to a first embodiment of the present invention. The embodiment can be applied to the situation of how to perform fault location on power transmission and distribution lines, the method can be executed by a power transmission and distribution fault location device, the device can be implemented in a form of hardware and/or software, and the device can be integrated in electronic equipment carrying the power transmission and distribution fault location function, such as a fault location system in a server. As shown in fig. 1, the method includes:
s110, obtaining the geographic coordinates of the power equipment in the transmission and distribution network.
In this embodiment, the power equipment refers to equipment in a transmission and distribution network; alternatively, the power equipment may include towers, tapping boxes, and box-section. The geographic coordinates refer to longitude and latitude coordinates of the power equipment.
Specifically, the geographical coordinates of the power equipment in the transmission and distribution network can be obtained from the fault locating module. The fault positioning module is connected with the automatic breaker switch in a physical connection mode, can read fault information of the automatic breaker switch on the operation of a line, and has a positioning function; the fault location module may collect fixed point geographical coordinates of the field power device, such as the coordinates of a XX main line XX branch line 12 pole XX circuit breaker.
And S120, generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment.
In this embodiment, the static mesh structure refers to a mesh connection relationship between power devices in the power transmission and distribution network. The tree application structure refers to a tree application relationship between power devices in a power transmission and distribution network. The geographical wiring diagram refers to a diagram of connection relations among power equipment in a transmission and distribution network, and may be an electronic map.
Specifically, the geographical wiring diagram of the transmission and distribution network can be generated based on a preset wiring diagram generation mode according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment.
Further, the geographic wiring diagram is displayed in the form of a map interface. When the map shows the geographical wiring diagram, the geographical position of each fault locating module is used as an interface display point, and green (representing normal), red (representing fault) and gray (representing power failure) are set to represent the line state of the corresponding position.
It can be understood that the geographical wiring diagram is displayed in the form of a map interface, so that the fault points of the whole transmission and distribution network can be conveniently checked.
And S130, when detecting that a line fault occurs in the line in the transmission and distribution network, determining a fault interval according to the fault current and the geographic wiring diagram.
In this embodiment, the line faults include a short circuit fault and a ground fault. By fault current is meant any abnormal current, including short circuit fault current and ground fault current.
Alternatively, the path of the power equipment point in the geographical wiring diagram through which the fault current flows may be taken as the fault interval based on the principle of reflow.
The fault interval refers to an interval in which a line fault exists in the geographic wiring diagram.
Specifically, after the line fault occurs, the fault current can pass through each fault display point from the fault point by the reflux principle, so that the color of all the fault display points from the action switch to the fault range is changed into red. That is, the fault current passes through the reflow principle from the fault point because the fault current will find a path to drain the redundant electric energy, and finally form protection. Then, a path of the fault point in the geographical wiring diagram corresponding to the last reddening fault display point and the next non-reddening fault display point can be used as a fault interval.
It can be understood that the section where the fault occurs can be visually and intuitively reflected by the change state of the fault display point and the geographical wiring diagram.
Further, after the fault interval is determined according to the fault current and the geographic wiring diagram, the on-site video of the power equipment corresponding to the fault display point can be obtained and displayed in response to the video checking operation of the fault display point in the fault interval.
Specifically, a Beidou positioning system is added and connected in the system, after a fault interval is determined, a user can click a video viewing option of a fault display point in the fault interval in a system interface, and correspondingly, the Beidou positioning system is called by the system to acquire a field video, namely a field satellite video, of the power equipment corresponding to the fault display point, and the field video is displayed.
It can be understood that the fault point pole section can be found immediately through the system without going out through carrying out video display on the field condition of the fault section, and the field device fault condition is checked through satellite videos such as Beidou, so that the manpower fault searching is greatly shortened, and the patrol risk is reduced.
Further, after the fault is eliminated and the power supply of the line is restored, the fault interval is changed from red to green, and the line operation display is restored to be normal.
According to the technical scheme, geographic coordinates of power equipment in the transmission and distribution network are obtained; the power equipment comprises a pole tower, a tapping box and a box transformer substation, and then a geographical wiring diagram of the power transmission and distribution network is generated according to a static network structure and a tree-shaped application structure in the power transmission and distribution network and geographical coordinates of the power equipment, and then when line faults in the lines in the power transmission and distribution network are detected, a fault interval is determined according to fault currents and the geographical wiring diagram. According to the technical scheme, the fault interval can be positioned in an express way based on the geographic wiring diagram and the fault current, so that related personnel can check and overhaul the fault in time, and the safety of the power transmission and distribution line is improved.
Example two
Fig. 2 is a flowchart of a power transmission and distribution fault locating method according to a second embodiment of the present invention. Based on the present example and the above examples, an alternative embodiment is provided for further optimization of "generating a geographical wiring diagram of a transmission and distribution network according to a static mesh structure and tree-like application structure of the transmission and distribution network and geographical coordinates of power equipment" and "detecting occurrence of a line fault in a line in the transmission and distribution network". As shown in fig. 2, the method includes:
s210, obtaining the geographic coordinates of the power equipment in the transmission and distribution network.
The power equipment comprises a pole tower, a tapping box and a box transformer.
S220, generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment.
Alternatively, the power equipment points can be determined by back-pushing according to the tree-like application structure of the transmission and distribution network; generating a connecting wire by forward pushing according to the static network structure of the transmission and distribution network; and generating a geographical wiring diagram of the transmission and distribution network according to the geographical coordinates of the connecting lines, the power equipment points and the power equipment.
The power equipment points refer to points in the tree-like application structure corresponding to the power equipment. The connection line refers to a topological connection relationship between power devices.
Specifically, for geographic wiring diagram generation, automatic diagramming logic reasoning is utilized to implement. The method is characterized in that based on the characteristics of a static network structure and a tree-shaped application structure of a transmission and distribution network geographic wiring diagram, the design thinking of a logic reasoning algorithm based on a geographic information system (Geographic Information System, GIS) is adopted, reverse reasoning thinking is adopted, a tree-shaped structure is adopted to reversely push to obtain power equipment points, forward reasoning is adopted, points (comprising towers, tapping boxes and box transformer) in the distribution network structure are used for generating connecting lines (comprising feeding paths and straight lines), the connecting lines are used for generating the transmission and distribution network geographic wiring diagram, and geographic coordinates of each power equipment are further indicated in the geographic wiring diagram.
It can be understood that the geographical wiring diagram of the transmission and distribution network is generated based on the structural characteristics of the transmission and distribution network, and a generation mode of the geographical wiring diagram is provided.
And S230, when detecting that a line fault occurs in the line in the transmission and distribution network, determining a fault interval according to the fault current and the geographic wiring diagram.
In this embodiment, a specific detection manner for detecting a circuit fault in an electric transmission and distribution network is provided.
Optionally, if the line fault includes a short-circuit fault, detecting that a line fault occurs in a line in the power transmission and distribution network, including: when the circuit simultaneously meets the following conditions, determining that the circuit has a short circuit fault:
the abrupt current appears in the circuit, and the abrupt current is larger than the first current value;
the current variation in the line is larger than or equal to the set multiple of the normal line current;
the current abrupt change time length in the circuit is larger than or equal to the first time length and smaller than or equal to the second time length; wherein the first duration is less than the second duration;
after the second period of time the line current is zero.
The normal line current refers to the current in the line before the short circuit. It should be noted that the first current value may be set by those skilled in the art according to practical situations, for example, 300A. The setting multiple may be set by those skilled in the art according to the actual situation, for example, 0.5. The first duration may be set by a person skilled in the art according to the actual situation, for example 0.02s; the second time period may be set by those skilled in the art according to the actual situation, for example, 3s.
Optionally, if the line fault includes a ground fault, detecting that a line fault occurs in a line in the power transmission and distribution network, including: when the line simultaneously meets the following conditions, determining that the line has a ground fault:
the transient capacitance current suddenly increased in the circuit, and the transient capacitance current at the moment of grounding is detected to be larger than a second current value;
the ground line voltage is reduced to above the set voltage value.
It should be noted that the second current value may be set by those skilled in the art according to actual situations. The set voltage value is set by a person skilled in the art according to the actual situation, for example 3kV.
According to the technical scheme, geographic coordinates of power equipment in the transmission and distribution network are obtained; the power equipment comprises a pole tower, a tapping box and a box transformer substation, and then a geographical wiring diagram of the power transmission and distribution network is generated according to a static network structure and a tree-shaped application structure in the power transmission and distribution network and geographical coordinates of the power equipment, and then when line faults in the lines in the power transmission and distribution network are detected, a fault interval is determined according to fault currents and the geographical wiring diagram. According to the technical scheme, the fault interval can be positioned in an express way based on the geographic wiring diagram and the fault current, so that related personnel can check and overhaul the fault in time, and the safety of the power transmission and distribution line is improved.
Example III
Fig. 3 is a schematic structural diagram of a fault location device for power transmission and distribution according to a third embodiment of the present invention. The embodiment can be suitable for the situation of how to perform fault location on the power transmission and distribution line, the device can be realized in a form of hardware and/or software, and the device can be integrated in electronic equipment carrying the power transmission and distribution fault location function, such as a fault location system in a server. As shown in fig. 3, the apparatus includes:
a geographic coordinate acquisition module 310, configured to acquire geographic coordinates of power equipment in the power transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer;
the geographic wiring diagram generation module 320 is configured to generate a geographic wiring diagram of the power transmission and distribution network according to the static mesh structure and the tree-like application structure in the power transmission and distribution network and geographic coordinates of the power equipment;
the fault interval determining module 330 is configured to determine, when a line fault in a line in the power transmission and distribution network is detected, a fault interval according to a fault current and a geographical wiring diagram.
According to the technical scheme, geographic coordinates of power equipment in the transmission and distribution network are obtained; the power equipment comprises a pole tower, a tapping box and a box transformer substation, and then a geographical wiring diagram of the power transmission and distribution network is generated according to a static network structure and a tree-shaped application structure in the power transmission and distribution network and geographical coordinates of the power equipment, and then when line faults in the lines in the power transmission and distribution network are detected, a fault interval is determined according to fault currents and the geographical wiring diagram. According to the technical scheme, the fault interval can be positioned in an express way based on the geographic wiring diagram and the fault current, so that related personnel can check and overhaul the fault in time, and the safety of the power transmission and distribution line is improved.
Optionally, the geographic wiring diagram generating module 320 is specifically configured to:
according to the tree-shaped application structure of the transmission and distribution network, reversely pushing to determine the power equipment points;
generating a connecting wire by forward pushing according to the static network structure of the transmission and distribution network;
and generating a geographical wiring diagram of the transmission and distribution network according to the geographical coordinates of the connecting lines, the power equipment points and the power equipment.
Optionally, if the line fault includes a short circuit fault, the fault interval determining module 330 is configured to:
when the circuit simultaneously meets the following conditions, determining that the circuit has a short circuit fault:
the abrupt current appears in the circuit, and the abrupt current is larger than the first current value;
the current variation in the line is greater than or equal to the normal line current;
the current abrupt change time length in the circuit is larger than or equal to the first time length and smaller than or equal to the second time length; wherein the first duration is less than the second duration;
after the second period of time the line current is zero.
Optionally, if the line fault includes a ground fault, the fault interval determining module 330 is configured to: when the line simultaneously meets the following conditions, determining that the line has a ground fault:
the transient capacitance current suddenly increased in the circuit, and the transient capacitance current at the moment of grounding is detected to be larger than a second current value;
the ground line voltage is reduced to above the set voltage value.
Optionally, the apparatus further comprises:
and the wiring diagram display module is used for displaying the geographic wiring diagram in the form of a map interface.
Optionally, the fault interval determining module 330 is configured to:
based on the reflux principle, the path of the power equipment point in the geographic wiring diagram through which the fault current flows is used as a fault interval.
Optionally, the apparatus further comprises:
the video checking module is used for responding to the video checking operation of the fault display points in the fault interval after the fault interval is determined according to the fault current and the geographic wiring diagram, and acquiring and displaying the field video of the power equipment corresponding to the fault display points.
The power transmission and distribution fault positioning device provided by the embodiment of the invention can execute the power transmission and distribution fault positioning method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example IV
Fig. 4 is a schematic structural diagram of an electronic device implementing the power transmission and distribution fault locating method according to an embodiment of the present invention. Fig. 4 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 4, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the power transmission and distribution fault location method.
In some embodiments, the power transmission and distribution fault localization method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the power transmission and distribution fault location method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the power transmission and distribution fault location method in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. The power transmission and distribution fault positioning method is characterized by comprising the following steps of:
obtaining geographic coordinates of power equipment in a transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer;
generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment;
and when detecting that a line fault occurs in the line in the transmission and distribution network, determining a fault interval according to the fault current and the geographic wiring diagram.
2. The method of claim 1, wherein the generating the geographical wiring diagram of the power transmission and distribution network from the static mesh structure and tree application structure of the power transmission and distribution network and the geographical coordinates of the power device comprises:
according to the tree-shaped application structure of the transmission and distribution network, reversely pushing to determine power equipment points;
generating a connecting wire by forward pushing according to the static network structure of the transmission and distribution network;
and generating a geographical wiring diagram of the transmission and distribution network according to the connecting lines, the power equipment points and the geographical coordinates of the power equipment.
3. The method of claim 1, wherein the line fault comprises a short circuit fault, and detecting that a line fault occurs in a line in the power transmission and distribution network comprises:
when the circuit simultaneously meets the following conditions, determining that the circuit has a short circuit fault:
the abrupt current appears in the circuit, and the abrupt current is larger than the first current value;
the current variation in the line is greater than or equal to the normal line current;
the current abrupt change time length in the circuit is larger than or equal to the first time length and smaller than or equal to the second time length; wherein the first duration is less than the second duration;
after the second period of time the line current is zero.
4. The method of claim 1, wherein the line fault comprises a ground fault, and detecting the line fault in the line in the power transmission and distribution network comprises:
when the line simultaneously meets the following conditions, determining that the line has a ground fault:
the transient capacitance current suddenly increased in the circuit, and the transient capacitance current at the moment of grounding is detected to be larger than a second current value;
the ground line voltage is reduced to above the set voltage value.
5. The method as recited in claim 1, further comprising:
the geographical wiring diagram is shown in the form of a map interface.
6. The method of claim 1, wherein said determining a fault interval from the fault current and the geographical wiring diagram comprises:
and taking the path of the power equipment point in the geographic wiring diagram through which the fault current flows as a fault interval based on a reflux principle.
7. The method of claim 1, wherein after determining a fault interval from the fault current and the geographical wiring diagram, further comprising:
and responding to the video viewing operation of the fault display point in the fault interval, and acquiring and displaying the field video of the power equipment corresponding to the fault display point.
8. A power transmission and distribution fault locating device, comprising:
the geographic coordinate acquisition module is used for acquiring geographic coordinates of power equipment in the transmission and distribution network; the power equipment comprises a pole tower, a tapping box and a box transformer;
the geographical wiring diagram generation module is used for generating a geographical wiring diagram of the transmission and distribution network according to the static network structure and the tree-shaped application structure in the transmission and distribution network and the geographical coordinates of the power equipment;
and the fault interval determining module is used for determining a fault interval according to the fault current and the geographic wiring diagram when the line faults in the lines in the transmission and distribution network are detected.
9. An electronic device, the electronic device comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the power transmission and distribution fault location method of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions for causing a processor to perform the power transmission and distribution fault location method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311351914.8A CN117269674A (en) | 2023-10-18 | 2023-10-18 | Fault positioning method, device, equipment and storage medium for transmission and distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311351914.8A CN117269674A (en) | 2023-10-18 | 2023-10-18 | Fault positioning method, device, equipment and storage medium for transmission and distribution network |
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| CN202311351914.8A Pending CN117269674A (en) | 2023-10-18 | 2023-10-18 | Fault positioning method, device, equipment and storage medium for transmission and distribution network |
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