CN114184881A - Fault event positioning method based on topological model tracking analysis - Google Patents
Fault event positioning method based on topological model tracking analysis Download PDFInfo
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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
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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 event positioning method based on topological model tracking analysis, which comprises the following steps of obtaining address information provided by a user in a report according to a fault report uploaded by the user; graphically displaying the fault location according to the address information; analyzing the operation conditions of the power failure equipment and an upstream power supply system thereof by using a topological model, judging a power failure event in an auxiliary manner, and positioning a fault position; according to the method, firstly, fault areas are divided according to a user fault report, according to the number of the fault problems in the same area, a dispatching system is used for allocating personnel from a power supply network and electric equipment respectively, the fault areas are divided primarily, comprehensive fault analysis is avoided, the working efficiency is improved, then a topological network is utilized, correlation analysis is carried out by combining current and voltage sensors and actual positions, the fault position is determined, the accuracy of fault positioning is high, the working efficiency of maintenance personnel is further improved, and rapid power supply is realized.
Description
Technical Field
The invention relates to the technical field of power fault positioning, in particular to a fault event positioning method based on topological model tracking analysis.
Background
According to statistics, in the existing power system, more than 80% of faults are from a power distribution network, along with the development of economy and the construction of cities, families, enterprises and even factories have high requirements on power utilization, if the power utilization faults occur, huge influences can be generated on the operation of the factories and the enterprises, and huge losses are caused.
The existing power failure method divides the structure of a power distribution network by using a hierarchical model and an intelligent verification method, and performs equivalent processing on branch ports in the technology of analyzing the logic rule of a switching function, so that the complexity of the construction of the switching function is reduced to a certain extent, but if the method is applied to a high-permeability and large-scale power distribution network, the method is still very complex, so that the accuracy of power distribution network failure positioning is influenced, and the method cannot be applied to all power systems.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
In order to solve the technical problems, the invention provides the following technical scheme: the method comprises the steps of obtaining address information provided by a user in a report according to a fault report uploaded by the user; graphically displaying the fault location according to the address information; and analyzing the operation conditions of the power failure equipment and an upstream power supply system thereof by using the topological model, judging the power failure event in an auxiliary manner, and positioning the position where the power failure occurs.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: the fault report comprises a user name, a user number, a user address, fault occurrence time and a fault occurrence position.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: and receiving the fault report through the power distribution network operation platform, carrying out preliminary analysis and judgment on the fault by using the topological model and the geographic information according to the fault occurrence time and the fault occurrence position in the fault report, and simultaneously displaying the fault reports belonging to the same region.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: further comprising, dividing the power system into three layers by the topology model: a sensor network layer, an application device layer and a power supply network layer.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: the method also comprises the steps that the address information preliminarily positions the fault according to the address information in the fault report, a power supply area is used as a dividing standard of the geographic position, the dividing standard is graded according to different power supply areas, and the grading of the geographic position comprises the following steps of: the grade of the specific location is grade 1, the grade of the street is grade 2, and the grade of the urban area is grade 3.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: if more than 4 fault reports are collected in the same 2-level area, firstly, fault positioning is carried out on a power supply network layer of the power system, a distribution and preemption command system sends fault notification to a responsible person in the power supply area according to the geographic position of the GIS, and the fault position of the power supply network layer is judged by utilizing a topological model; if no fault is found, transmitting a normal command to a dispatching and robbing command system, and dispatching maintenance personnel to the fault occurrence position by the command system to judge and maintain the fault; if a plurality of fault reports do not exist in the level 2 region to which the collected fault reports belong, firstly, fault location is carried out on an application equipment layer in the power system, and a distributing and robbing command system directly distributes maintenance personnel to the fault occurrence position for fault detection and maintenance.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: the analysis includes, at power supply unit's connector, sets up electric current, voltage sensor, sets up the current strength of each node that current sensor surveyed to:
X＝(x1,x2,…,xn)n
the voltage intensity is set as:
Y＝(y1，y2，…，yn)n
the position information is set as:
Z＝(z1,z2,…,zn)n×p
wherein n is the nth node, p is the dimension of the position coordinate, and p is 2 or 3 because the coordinate is generally two-dimensional or three-dimensional;
the similarity matrix in the topological structure in current, voltage and position space is:
wherein: i is the ith sensor, j is the adjacent sensor, and in the topological network structure, the correlation equation of each factor can be expressed as:
wherein wnA vector machine for position coordinates.
As a preferred embodiment of the method for locating a fault event based on a topology model tracking analysis according to the present invention, the method comprises: the method comprises the steps of correlating the coordinate positions through measured values of current and voltage according to the similarity matrix, and calculating the coordinates of the fault positions according to the change conditions of the current and the voltage as the current and the voltage can be measured by sensors.
The invention has the beneficial effects that: according to the method, firstly, fault areas are divided according to a user fault report, according to the number of the fault problems in the same area, a dispatching system is used for allocating personnel from a power supply network and electric equipment respectively, the fault areas are divided primarily, comprehensive fault analysis is avoided, the working efficiency is improved, then a topological network is utilized, correlation analysis is carried out by combining current and voltage sensors and actual positions, the fault position is determined, the accuracy of fault positioning is high, the working efficiency of maintenance personnel is further improved, and rapid power supply is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic flowchart of a fault event location method based on topology model tracking analysis according to a first embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a method for locating a fault event based on a topology model tracking analysis, including:
s1: and according to the fault report uploaded by the user, acquiring the address information provided by the user in the report.
The power grid information collection system collects fault reports uploaded by users, wherein the content of the fault reports comprises the following steps: user name, user number, user address, fault occurrence time and fault occurrence position.
And receiving the fault report through the power distribution network operation platform, carrying out preliminary analysis and judgment on the fault by using the topological model and the geographic information according to the fault occurrence time and position in the fault report, and simultaneously displaying the fault reports belonging to the same region.
S2: and graphically displaying the fault location according to the address information.
The address information is used for preliminarily positioning the fault according to the address information in the fault report, the power supply area is used as a dividing standard of the geographical position, the dividing standard is graded according to different power supply areas, and the grading of the geographical position comprises the following steps of: the grade of the specific location is grade 1, the grade of the street is grade 2, and the grade of the urban area is grade 3.
S3: and analyzing the operation conditions of the power failure equipment and an upstream power supply system thereof by using the topological model, judging the power failure event in an auxiliary manner, and positioning the position where the power failure occurs.
If more than 4 fault reports are collected in the same 2-level area, firstly, fault positioning is carried out on a power supply network layer of the power system, a distributing and robbing command system issues fault notification to responsible personnel of the power supply area according to the geographic position of the GIS, and a topological model is utilized to judge the fault position of the power supply network layer;
if no fault is found, transmitting a normal command to a dispatching and robbing command system, and dispatching maintenance personnel to the fault occurrence position by the command system to judge and maintain the fault;
if a plurality of fault reports do not exist in the level 2 region to which the collected fault report belongs at the same time, firstly, fault positioning is carried out on an application equipment layer in the power system, and a distributing and robbing command system directly distributes maintenance personnel to the fault occurrence position for fault detection and maintenance; the judgment standard for simultaneously collecting a plurality of fault reports is as follows: when the time of occurrence of a failure in a failure report provided by a user is within 10 minutes and the number of failure events in the same level 2 region is 10 or more and 4, it is determined that a plurality of failure reports are collected at the same time.
The power system is divided into three layers through a topological model: a sensor network layer, an application equipment layer and a power supply network layer; at power supply unit's connector, set up electric current, voltage sensor, set up the current strength of each node that measures current sensor as:
X＝(x1,x2,…,xn)n
the voltage intensity is set as:
Y＝(y1，y2，…，yn)n
the position information is set as:
Z＝(z1,z2,…,zn)n×p
wherein n is the nth node, p is the dimension of the position coordinate, and p is 2 or 3 because the coordinate is generally two-dimensional or three-dimensional;
the similarity matrix in the topological structure in current, voltage and position space is:
wherein: i is the ith sensor, j is the adjacent sensor, and in the topological network structure, the correlation equation of each factor can be expressed as:
wherein wnA vector machine for position coordinates.
Furthermore, according to the similarity matrix, the coordinate position is correlated through the measured values of the current and the voltage, and the current and the voltage can be measured through the sensors, so that the coordinate of the fault position can be calculated according to the change conditions of the current and the voltage.
Example 2
In order to verify and explain the technical effects adopted in the method, the embodiment selects the traditional technical scheme and adopts the method to perform comparison test, and compares the test results by means of scientific demonstration to verify the real effect of the method.
In this embodiment, the conventional technical solution and the method are adopted to perform fault detection and location comparison on the electric devices, and the results are shown in the following table.
Table 1: and (4) fault positioning accuracy.
| Conventional technical solutions | Method for producing a composite material | |
| Device 1 | 70％ | 100％ |
| Device 2 | 50％ | 100％ |
| Device 3 | 75％ | 100％ |
| Device 4 | 45％ | 95％ |
| Device 5 | 60％ | 95％ |
As can be seen from the above table, compared with the conventional technical scheme, the method can accurately locate the equipment fault.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein. A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
As used in this application, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of example, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A fault event positioning method based on topological model tracking analysis is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
according to a fault report uploaded by a user, acquiring address information provided by the user in the report;
graphically displaying the fault location according to the address information;
and analyzing the operation conditions of the power failure equipment and an upstream power supply system thereof by using the topological model, judging the power failure event in an auxiliary manner, and positioning the position where the power failure occurs.
2. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: the fault report comprises a user name, a user number, a user address, fault occurrence time and a fault occurrence position.
3. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: also comprises the following steps of (1) preparing,
and receiving the fault report through the power distribution network operation platform, carrying out preliminary analysis and judgment on the fault by using the topological model and the geographic information according to the fault occurrence time and position in the fault report, and simultaneously displaying the fault reports belonging to the same region.
4. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: also comprises the following steps of (1) preparing,
dividing the power system into three layers through the topological model: a sensor network layer, an application device layer and a power supply network layer.
5. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: also comprises the following steps of (1) preparing,
the address information is used for preliminarily positioning the fault according to the address information in the fault report, the power supply area is used as a dividing standard of the geographical position, the dividing standard is graded according to different power supply areas, and the grading of the geographical position comprises the following steps of: the grade of the specific location is grade 1, the grade of the street is grade 2, and the grade of the urban area is grade 3.
6. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: also comprises the following steps of (1) preparing,
if more than 4 fault reports are collected in the same 2-level area, firstly, fault positioning is carried out on a power supply network layer of the power system, a distributing and robbing command system issues fault notification to responsible personnel of the power supply area according to the geographic position of the GIS, and a topological model is utilized to judge the fault position of the power supply network layer;
if no fault is found, transmitting a normal command to a dispatching and robbing command system, and dispatching maintenance personnel to the fault occurrence position by the command system to judge and maintain the fault;
if a plurality of fault reports do not exist in the level 2 region to which the collected fault reports belong, firstly, fault location is carried out on an application equipment layer in the power system, and a distributing and robbing command system directly distributes maintenance personnel to the fault occurrence position for fault detection and maintenance.
7. The method for locating fault events based on topological model tracking analysis according to claim 1, wherein: the analysis includes the steps of analyzing the data of the object,
at power supply unit's connector, set up electric current, voltage sensor, set up the current strength of each node that measures current sensor as:
X＝(x1,x2,…,xn)n
the voltage intensity is set as:
Y＝(y1，y2，...，yn)n
the position information is set as:
Z＝(z1,z2,…,zn)n×p
wherein n is the nth node, p is the dimension of the position coordinate, and p is 2 or 3 because the coordinate is generally two-dimensional or three-dimensional;
the similarity matrix in the topological structure in current, voltage and position space is:
wherein: i is the ith sensor, j is the adjacent sensor, and in the topological network structure, the correlation equation of each factor can be expressed as:
wherein wnA vector machine for position coordinates.
8. The method for locating fault events based on topological model tracking analysis according to claim 7, wherein: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
according to the similarity matrix, the coordinate position is correlated through the measured values of the current and the voltage, and the current and the voltage can be measured through the sensors, so that the coordinate of the fault position can be calculated according to the change conditions of the current and the voltage.
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