CN110635477B - Multi-system fusion-based distribution network fault studying and judging method, device and system - Google Patents
Multi-system fusion-based distribution network fault studying and judging method, device and system 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
- 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
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- 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
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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
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- 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
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
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Abstract
The invention discloses a method, a device and a system for judging distribution network faults based on multi-system fusion, wherein the method comprises the following steps: acquiring a power failure event signal from a corresponding system; and determining a corresponding judging inlet for comprehensive judging according to the power failure event signal, and determining the type of the power failure event and the fault source. The system comprises: the acquisition module is used for acquiring power failure event signals from corresponding systems; and the judging module is used for determining the corresponding judging inlet to carry out comprehensive judgment according to the power failure event signal and determining the type of the power failure event and the fault source. The device comprises: a memory: for storing instructions; a processor: for operating according to said instructions to perform the steps of the above method. The invention can improve the efficiency of fault research and judgment through multi-system fusion and provide powerful conditions for the subsequent maintenance process.
Description
Technical Field
The invention belongs to the technical field of power maintenance, and particularly relates to a method, a device and a system for judging distribution network faults based on multi-system fusion.
Background
The power distribution network is an important junction for connecting users and a power transmission network, has an important role in the operation of the whole power system, and can effectively ensure the operation efficiency and the power supply quality of the whole power system through the normal operation of the power distribution network. The power distribution network fault repair efficiency is more and more concerned, the fault repair efficiency directly affects the production and life of users, and the low-efficiency repair service can even affect the economic development and social stability. However, the current determination of the type of distribution network failure and the source of the failure has problems of inefficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method, a device and a system for researching and judging a distribution network fault based on multi-system fusion, which can improve the efficiency of the fault research and judgment through the multi-system fusion and provide powerful conditions for the subsequent fault treatment process.
In order to solve the problems in the prior art, the invention discloses a method for studying and judging a distribution network fault based on multi-system fusion, which comprises the following contents:
acquiring a power failure event signal from a corresponding system;
and determining a corresponding judging inlet for comprehensive judging according to the power failure event signal, and determining the type of the power failure event and the fault source.
Further, the method comprises the steps of,
if the power failure event signal is the repair work order information of the 95598 system, the process of judging the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, carrying out the next step;
acquiring the electrified state of the ammeter corresponding to the repair work order information, if the ammeter is in the electrified state, considering the power failure event as an indoor fault, otherwise, performing the next step;
acquiring the electrified states of other meters under the same access point, if the meters are in the power-off state, performing the next step, otherwise, enabling the power-off event to be a single-user power-off event;
and acquiring the electrified state of the distribution transformer of the access point, if the distribution transformer is in the power-off state, judging the distribution transformer to determine the event type and the fault source according to the distribution transformer power-off event, otherwise, determining the power-off event to be a low-voltage fault power-off event and determining the fault source.
Further, the method comprises the steps of,
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
acquiring a power supply point of the ammeter in the current power grid running state;
judging whether a homologous unaddressed power failure event set exists, if so, judging the power failure event set to be a known power failure event and carrying out the next step, and if not, judging the power failure event set to be a new power failure event;
combining the signal of the outage event with a known outage event set to update the outage event set;
finding out power supply paths of all power outage distribution transformers in the power outage event set and distribution transformers of newly received power outage signals;
finding out the most remote equipment with repeated power supply paths and taking the most remote equipment as a fault point;
further, the method comprises the steps of,
if the power failure event signal is a distribution transformer power failure event signal of the power consumption information acquisition system, the judging process of the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, performing the next step, otherwise, performing the next step;
judging the electrified state of other distribution transformers homologous to the power failure event, if the power failure event is a low-voltage fault power failure event, determining a fault source, otherwise, determining a single distribution transformer power failure event;
judging whether the power failure event is a displacement signal power failure event or not, and if so, judging according to the displacement signal power failure event to determine the event type and the fault source.
Further, the method comprises the steps of,
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
acquiring a power supply point of the distribution transformer in the current power grid running state;
judging whether the power failure event is a planned power failure event, if not, carrying out the next step;
judging whether a power failure event with the same power supply point exists, if so, judging that the power failure event is a known power failure event, otherwise, judging that the power failure event is a new power failure event.
Further, the method comprises the steps of,
if the power failure event signal is a switch deflection signal of the power distribution automation system, the process of judging the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, carrying out the next step;
judging whether the power failure event is a branch line switch deflection signal power failure event or a 10kV outgoing line tripping power failure event, and determining a fault source.
Further, the method comprises the steps of,
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
judging whether the power failure event is a planned power failure event, if not, carrying out the next step;
and determining the influence range of the power outage event, wherein if the power outage event has intersection with power outage equipment with a known power outage, the power outage event is the known power outage event, and otherwise, the power outage event is a new power outage event.
Further, the method comprises the steps of,
if the power failure event is a planned event, the power failure event is associated with the maintenance plan; if the power outage event is a known power outage event, the power outage event is merged with the known power outage event.
The invention also provides a distribution network fault studying and judging system based on multi-system fusion, which comprises the following steps:
the acquisition module is used for acquiring power failure event signals from corresponding systems; and
And the judging module is used for determining a corresponding judging inlet according to the power failure event signal to carry out comprehensive judging and determining the type of the power failure event and the fault source.
The invention also provides a distribution network fault studying and judging device based on multi-system fusion, which comprises the following steps:
a memory: for storing instructions;
a processor: for operating according to said instructions to perform the steps of the above method.
The invention has the beneficial effects that:
1) The power distribution network fault studying and judging method is beneficial to intelligent management and control of the power outage work orders, and builds a correlation model of users, equipment and a robbery operation and maintenance team through intelligent correlation of information such as customers, power grid topology, equipment operation state, maintenance plan and the like, so that intelligent combination of the power outage work orders and auxiliary dispatching of the power outage work orders are realized, and customer service level is improved.
2) According to the power distribution network fault judging method, system data of a 95598 system, a PMS2.0 system, a distribution network automation system, a dispatching management system and the like are integrated to form a power distribution network fault data source, faults of medium-voltage equipment and low-voltage equipment of a power distribution network are obtained and analyzed, data communication of a power distribution network related system is achieved on the basis of unified power distribution network equipment models, and the utilization efficiency of the power distribution network data is effectively improved.
3) The method for judging the faults of the power distribution network is beneficial to comprehensive automatic judging and quick and accurate positioning of the faults caused by power failure, judging the type of the faults caused by power failure, the section with the faults and the process of the influence range of the power failure, and fundamentally improving the operation efficiency of the power distribution network and maintaining the safe operation of the power distribution network.
4) The invention has the advantages of sensing the power failure data in real time, adapting to different transmission protocols and supporting the data exchange of any format. In addition, data service data exchange is supported, and the data source directly reads data from a service interface of an application system, so that application integration is realized, complex business application can be realized, and the method has good application prospect.
Drawings
FIG. 1 is a flow chart of a distribution network fault determination in an embodiment of the present invention;
FIG. 2 is a flow chart of a known power-cut sheet combining in accordance with an embodiment of the present invention;
FIG. 3 is a flow chart of a test and study decision in an embodiment of the invention;
fig. 4 is a flowchart of a called-up measurement and transformation extraction in an embodiment of the invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the invention provides a method for judging a distribution network fault based on multi-system fusion, which comprises the following steps:
a power outage event signal from a corresponding system is obtained.
And determining a corresponding judging inlet for comprehensive judging according to the power failure event signal, and determining the type of the power failure event and the fault source. Specifically:
in one embodiment, if the power outage event signal is the report worksheet information of the 95598 system, the process of determining the power outage event is specifically as follows:
s11, judging whether the power failure event is a new power failure event, and if so, proceeding to the next step.
S12, acquiring the electrified state of the ammeter corresponding to the repair work order information, if the ammeter is in the electrified state, the power failure event is an indoor fault, otherwise, the next step is carried out.
S13, acquiring the electrified states of other meters under the same access point according to the low-voltage topological relation, if the meters are in the power-losing state, carrying out the next step, otherwise, enabling the power failure event to be a single-user power failure event.
S14, acquiring the electrified state of the distribution transformer of the access point, if the electrified state is in the power-off state, the distribution transformer of the access point is in the power-off state, and performing research and judgment according to the power-off event of the distribution transformer to determine the event type and the fault source, otherwise, the power-off event is a low-voltage fault power-off event and the fault source is determined.
It should be noted that, the report and repair work order information includes a user number and an address, matching of the distribution transformer can be performed according to the address, if the matching is to the corresponding distribution transformer, auxiliary dispatching is performed according to the distribution transformer, otherwise, auxiliary dispatching is performed according to the address and history information.
As shown in fig. 2, in one embodiment, the process of determining whether the outage event is a new outage event is specifically as follows:
s111, acquiring a power supply point of the ammeter in the current power grid running state.
S112, judging whether the power failure event exists in the overhaul plan, if so, planning the power failure event, otherwise, performing the next step;
s113, judging whether a non-filed power failure event set of the homologous battery exists, if so, judging that the power failure event is known and carrying out the next step, and if not, judging that the power failure event is new.
S114, combining the signal of the power outage event with the known power outage event set to update the power outage event set.
S115, finding out power supply paths of all power outage distribution transformers in the power outage event set and the distribution transformers of the newly received power outage signals.
And S116, finding out the most remote equipment with repeated power supply paths and taking the most remote equipment as a fault point.
In one embodiment, if the outage event signal is a power distribution transformer outage event signal of the power consumption information collection system, the procedure for determining the outage event is specifically as follows:
s21, judging whether the power failure event is a new power failure event, if so, performing the next step, and if not, performing the next step.
S22, searching the electrified state of other distribution transformers which are homologous to the power failure event through calling, if all power is lost, the power failure event is a low-voltage fault power failure event, determining a fault source, and otherwise, the power failure event is a single distribution transformer power failure event. The method for determining the fault source is as follows: and acquiring power supply paths of all power-off distribution transformers by combining the distribution network topological relation, acquiring intersection points of power failure areas by combining graph theory knowledge, and taking the intersection points as fault sources of the power failure events. The fault source determining method is a fault source determining method in the prior art, so that the description is omitted.
S23, judging whether the power failure event is a displacement signal power failure event, if so, judging according to the displacement signal power failure event to determine the event type and the fault source.
As shown in fig. 3, in one embodiment, the process of calling up a grinding decision is specifically as follows:
if the type of the distribution transformer power failure event is a single distribution transformer power failure event, taking the distribution transformer as a starting point to acquire a power supply path and all the switching-off equipment in the power supply path; otherwise, optionally selecting a configuration transformer as a starting point to acquire a power supply path and all the switching-on and switching-off equipment in the power supply path.
And extracting the to-be-called measurement configuration transformer for one-time calling, and determining the fault point range.
And according to the power supply path, if disconnection points still exist between the fault point ranges, carrying out secondary recall to determine the fault points.
Updating/merging the received outage event and processing the outage event.
As shown in fig. 4, in one embodiment, the method for extracting the to-be-called measurement transformer is specifically as follows:
a disconnection point is selected.
Judging whether the disconnection point comprises a configuration transformer powered by the disconnection point only, if so, carrying out the next step, otherwise, carrying out filtering.
Adding a list of disconnection points to be selected and performing the following process:
if the number of disconnection points is zero, adding the disconnection points into the to-be-called measurement and configuration transformer; if the number of the disconnection points is less than or equal to 5, sequentially and circularly selecting the distribution transformer according to the sequence of the disconnection points until 5 distribution transformers are selected and the to-be-called measurement distribution transformer is added; if the number of the disconnection points is greater than 5, selecting one distribution transformer from the beginning to the end, then selecting three distribution transformers in the middle, and adding the to-be-called measurement distribution transformer.
In one embodiment, the process of determining whether the outage event is a new outage event is specifically as follows:
s211, acquiring a power supply point of the distribution transformer in the current power grid running state according to the distribution network topological relation and the opening and closing states of all the switches of the line.
S212, judging whether the power failure event is a planned power failure event according to the information of the power failure distribution transformer and the maintenance plan, and if not, carrying out the next step.
S213, judging whether a power failure event with the same power supply point exists in the current power failure set, if so, determining that the power failure event is a known power failure event, otherwise, determining that the power failure event is a new power failure event.
In one embodiment, if the power outage event signal is a switch displacement signal of the power distribution automation system, the process of determining the power outage event is specifically as follows:
s31, judging whether the power failure event is a new power failure event, and if so, proceeding to the next step.
S32, judging whether the power failure event is a branch switch deflection signal power failure event or a 10kv line-out tripping power failure event, and determining a fault source.
In one embodiment, the fault source of the branch line switch deflection outage event or the 10kV outgoing line switch trip outage event defaults to the switch itself. If a plurality of switches exist in the same line and are simultaneously disconnected, and the power supply range of one switch comprises the power supply range of the other switch, the former switch is taken as a fault source of the power failure event.
In one embodiment, the process of determining whether the outage event is a new outage event is specifically as follows:
and S311, judging whether the power failure event is a planned power failure event according to the displacement signal information and the maintenance plan, and if not, carrying out the next step.
S312, determining the influence range of the power outage event based on the distribution network graph model relation, if the power outage event has an intersection with the power outage equipment with the known power outage, the power outage event is the known power outage event, and otherwise, the power outage event is a new power outage event.
In one embodiment, if the outage event is a planned event, then associating the outage event with the service plan; if the power outage event is a known power outage event, the power outage event is merged with the known power outage event.
It should be noted that, in the embodiment of the present invention, after the power failure event signal is obtained, filtering is performed according to the signal type to remove the repeated signal or the error signal.
It should be understood that, although the steps in the flowcharts of fig. 1 to 4 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 to 4 may comprise a plurality of sub-steps or phases, which are not necessarily performed at the same time, but may be performed at different times, nor does the order of execution of the sub-steps or phases necessarily follow one another, but may be performed alternately or alternately with at least a portion of the sub-steps or phases of other steps or other steps.
Based on the same inventive concept, the invention also provides a distribution network fault studying and judging system based on multi-system fusion, which comprises the following steps:
the acquisition module is used for acquiring power failure event signals from corresponding systems; and
And the judging module is used for determining a corresponding judging inlet according to the power failure event signal to carry out comprehensive judging and determining the type of the power failure event and the fault source. It should be noted that, the research and judgment module provides three research and judgment inlets, which respectively correspond to three different power failure event signals, and the different inlets output corresponding research and judgment results.
Based on the same inventive concept, a distribution network fault studying and judging device based on multi-system fusion comprises:
a memory: for storing instructions;
a processor: steps for operating according to said instructions to perform the method of any one of claims 1 to 8.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (8)
1. A method for studying and judging distribution network faults based on multi-system fusion is characterized by comprising the following steps: the method comprises the following steps:
acquiring a power failure event signal from a corresponding system;
determining a corresponding judging inlet for comprehensive judging according to the power failure event signal, and determining the type of the power failure event and a fault source;
if the power failure event signal is the repair work order information of the 95598 system, the process of judging the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, carrying out the next step;
acquiring the electrified state of the ammeter corresponding to the repair work order information, if the ammeter is in the electrified state, the power failure event is an indoor fault, otherwise, performing the next step;
acquiring the electrified states of other meters under the same access point, if the meters are in the power-off state, performing the next step, otherwise, enabling the power-off event to be a single-user power-off event;
acquiring the electrified state of the distribution transformer of the access point, if the electrified state is in the power-off state, considering that the distribution transformer of the access point is in the power-off state, and performing research and judgment according to a power-off event of the distribution transformer to determine the event type and the fault source, otherwise, determining that the power-off event is a low-voltage fault power-off event and determining the fault source;
the repair work order information comprises a user number and an address, matching is carried out according to the address, if the matching is carried out to the corresponding matching, auxiliary dispatching is carried out according to the matching, otherwise, auxiliary dispatching is carried out according to the address and the history information;
if the power failure event signal is a distribution transformer power failure event signal of the power consumption information acquisition system, the judging process of the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, performing the next step, otherwise, performing the next step;
judging the electrified state of other distribution transformers homologous to the power failure event, if the power failure event is a medium-voltage fault power failure event and determining a fault source, otherwise, the power failure event is a single distribution transformer power failure event;
judging whether the power failure event is a displacement signal power failure event or not, if so, performing research and judgment according to the displacement signal power failure event to determine the event type and the fault source;
if the type of the distribution transformer power failure event is a single distribution transformer power failure event, taking the distribution transformer as a starting point to acquire a power supply path and all the switching-off equipment in the power supply path; otherwise, optionally selecting a configuration transformer as a starting point to acquire a power supply path and all the switching-on and switching-off equipment in the power supply path;
extracting a to-be-called measurement configuration transformer for one-time calling measurement, and determining a fault point range;
according to the power supply path, if disconnection points still exist between the fault point ranges, carrying out secondary calling to determine the fault points;
updating/merging the received power outage event and processing the power outage event;
the extraction method of the to-be-called measurement and distribution transformer specifically comprises the following steps:
selecting a disconnection point;
judging whether the disconnection point comprises a configuration transformer powered by the disconnection point only, if so, carrying out the next step, otherwise, carrying out filtering;
adding the disconnection point into a list of disconnection points to be selected and performing the following process:
if the number of disconnection points is zero, adding the disconnection points into the to-be-called measurement and configuration transformer; if the number of the disconnection points is less than or equal to 5 and greater than 0, sequentially and circularly selecting the configuration changes according to the sequence of the disconnection points until 5 configuration changes are selected and the configuration changes to be called are added; if the number of the disconnection points is greater than 5, selecting one distribution transformer from the beginning to the end, then selecting three distribution transformers in the middle, and adding the to-be-called measurement distribution transformer.
2. The method for judging the faults of the distribution network based on multi-system fusion according to claim 1, wherein the method is characterized by comprising the following steps:
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
acquiring a power supply point of the ammeter in the current power grid running state;
judging whether a homologous unaddressed power failure event set exists, if so, judging the power failure event set to be a known power failure event and carrying out the next step, and if not, judging the power failure event set to be a new power failure event;
combining the signal of the outage event with a known outage event set to update the outage event set;
finding out power supply paths of all power outage distribution transformers in the power outage event set and distribution transformers of newly received power outage signals;
the most distal device where the power supply path is repeated is found and taken as a fault point.
3. The method for judging the faults of the distribution network based on multi-system fusion according to claim 1, wherein the method is characterized by comprising the following steps:
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
acquiring a power supply point of the distribution transformer in the current power grid running state;
judging whether the power failure event is a planned power failure event, if not, carrying out the next step;
judging whether a power failure event with the same power supply point exists, if so, judging that the power failure event is a known power failure event, otherwise, judging that the power failure event is a new power failure event.
4. The method for judging the faults of the distribution network based on multi-system fusion according to claim 1, wherein the method is characterized by comprising the following steps:
if the power failure event signal is a switch deflection signal of the power distribution automation system, the process of judging the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, carrying out the next step;
judging whether the power failure event is a branch line switch deflection signal power failure event or a 10kV outgoing line switch tripping power failure event, and determining a fault source.
5. The method for judging the faults of the distribution network based on multi-system fusion according to claim 4, wherein the method is characterized in that:
the process of judging whether the power failure event is a new power failure event specifically comprises the following steps:
judging whether the power failure event is a planned power failure event, if not, carrying out the next step;
and determining the influence range of the power outage event, wherein if the power outage event has intersection with power outage equipment with a known power outage, the power outage event is the known power outage event, and otherwise, the power outage event is a new power outage event.
6. The method for judging distribution network faults based on multi-system fusion according to any one of claims 2 to 5, wherein the method is characterized by comprising the following steps of:
if the power failure event is a planned event, correlating the power failure event with the planned event; if the power outage event is a known power outage event, the power outage event is merged with the known power outage event.
7. A distribution network fault studying and judging system based on multi-system fusion is characterized in that: comprising the following steps:
the acquisition module is used for acquiring power failure event signals from corresponding systems; and
The judging module is used for determining a corresponding judging inlet according to the power failure event signal to carry out comprehensive judging and determining the type of the power failure event and the fault source;
if the power failure event signal is the repair work order information of the 95598 system, the process of judging the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, carrying out the next step;
acquiring the electrified state of the ammeter corresponding to the repair work order information, if the ammeter is in the electrified state, the power failure event is an indoor fault, otherwise, performing the next step;
acquiring the electrified states of other meters under the same access point, if the meters are in the power-off state, performing the next step, otherwise, enabling the power-off event to be a single-user power-off event;
acquiring the electrified state of the distribution transformer of the access point, if the electrified state is in the power-off state, considering that the distribution transformer of the access point is in the power-off state, and performing research and judgment according to a power-off event of the distribution transformer to determine the event type and the fault source, otherwise, determining that the power-off event is a low-voltage fault power-off event and determining the fault source;
the repair work order information comprises a user number and an address, matching is carried out according to the address, if the matching is carried out to the corresponding matching, auxiliary dispatching is carried out according to the matching, otherwise, auxiliary dispatching is carried out according to the address and the history information;
if the power failure event signal is a distribution transformer power failure event signal of the power consumption information acquisition system, the judging process of the power failure event is specifically as follows:
judging whether the power failure event is a new power failure event, if so, performing the next step, otherwise, performing the next step;
judging the electrified state of other distribution transformers homologous to the power failure event, if the power failure event is a medium-voltage fault power failure event and determining a fault source, otherwise, the power failure event is a single distribution transformer power failure event;
judging whether the power failure event is a displacement signal power failure event or not, if so, performing research and judgment according to the displacement signal power failure event to determine the event type and the fault source;
if the type of the distribution transformer power failure event is a single distribution transformer power failure event, taking the distribution transformer as a starting point to acquire a power supply path and all the switching-off equipment in the power supply path; otherwise, optionally selecting a configuration transformer as a starting point to acquire a power supply path and all the switching-on and switching-off equipment in the power supply path;
extracting a to-be-called measurement configuration transformer for one-time calling measurement, and determining a fault point range;
according to the power supply path, if disconnection points still exist between the fault point ranges, carrying out secondary calling to determine the fault points;
updating/merging the received power outage event and processing the power outage event;
the extraction method of the to-be-called measurement and distribution transformer specifically comprises the following steps:
selecting a disconnection point;
judging whether the disconnection point comprises a configuration transformer powered by the disconnection point only, if so, carrying out the next step, otherwise, carrying out filtering;
adding the disconnection point into a list of disconnection points to be selected and performing the following process:
if the number of disconnection points is zero, adding the disconnection points into the to-be-called measurement and configuration transformer; if the number of the disconnection points is less than or equal to 5 and greater than 0, sequentially and circularly selecting the configuration changes according to the sequence of the disconnection points until 5 configuration changes are selected and the configuration changes to be called are added; if the number of the disconnection points is greater than 5, selecting one distribution transformer from the beginning to the end, then selecting three distribution transformers in the middle, and adding the to-be-called measurement distribution transformer;
and the repair work order information comprises a user number and an address, matching is carried out according to the address, if the matching is carried out to the corresponding matching, auxiliary dispatching is carried out according to the matching, and otherwise, auxiliary dispatching is carried out according to the address and the history information.
8. A distribution network fault studying and judging device based on multi-system fusion is characterized in that: comprising the following steps:
a memory: for storing instructions;
a processor: steps for operating according to said instructions to perform the method of any one of claims 1 to 6.
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