CN106646104A - Power distribution network fault diagnosis method - Google Patents
Power distribution network fault diagnosis method Download PDFInfo
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- CN106646104A CN106646104A CN201610863912.0A CN201610863912A CN106646104A CN 106646104 A CN106646104 A CN 106646104A CN 201610863912 A CN201610863912 A CN 201610863912A CN 106646104 A CN106646104 A CN 106646104A
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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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- 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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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Locating Faults (AREA)
Abstract
The invention relates to a power distribution network fault diagnosis method. The method comprises steps that a power grid full model is constructed; the fault information of a feed line is acquired, and the feed line with a fault is positioned according to the fault information and the power grid full model; the fault indication information of a fault indicator is acquired, and a first fault section with the fault is positioned according to the fault indication information and the power grid full model; a distribution transform power failure event of a distribution transformer is acquired, and first trip-out equipment with the fault is positioned according to the distribution transform power failure event and the power grid full model; the measurement drop information of a wire outgoing switch is acquired, and a second fault section and second trip-out equipment with the fault are positioned according to the measurement drop information and the power grid full model. Through the power distribution network fault diagnosis method, a fault generation line segment can be precisely acquired through the fault indication information, the distribution transform power failure event and the measurement drop information in combination with the power grid full model, and thereby fault diagnosis efficiency is effectively improved.
Description
Technical field
The present invention relates to electric network failure diagnosis technical field, more particularly, to Fault Diagnosis Method for Distribution Networks.
Background technology
In current distribution network monitoring, dispatcher depends on the distribution terminal two for collecting distant (remote signalling and remote measurement)
Or three distant (remote signalling, remote measurement, remote control) information carry out system monitoring, when power distribution network breaks down, by what is sent on distribution terminal
The fault message of switch changed position signal and its correlation carries out fault diagnosis, and positioning failure is interval, and instructs according to this with robbing work.
But power distribution network realizes that the circuit of feeder automation is limited, and the coverage rate of some areas distribution terminal is relatively low, to not having
Have access two distant or three distant feeder lines cannot carry out monitor in real time, can only according to the repairing information of client, by virtue of experience carry out therefore
Barrier diagnosis, causing trouble diagnosis efficiency is low, and on the other hand, the result of feeder automation feedback can only often reflect that the feeder line goes out
Line failure, and the concrete part of path of feeder line outlet failure can not be judged so that the precision of fault diagnosis is low, so, undoubtedly will lead
Cause fault restoration inefficiency.
The content of the invention
Based on this, it is necessary to low for existing electric network failure diagnosis precision, a kind of defect of inefficiency, there is provided power distribution network
Method for diagnosing faults.
A kind of Fault Diagnosis Method for Distribution Networks, including：
Build model step：Build electrical network full model；
Obtain fault message step：The fault message of feeder line is obtained, according to the fault message and the electrical network full model
The feeder line that positioning failure is located；
Obtain failure indication information step：The failure indication information of fault detector is obtained, is believed according to the indicating fault
The Fisrt fault that breath and the electrical network full model positioning failure are located is interval；
Obtain distribution power-off event step：The distribution transforming power-off event of distribution transformer is obtained, according to the distribution transforming power failure thing
The first trip device that part and the electrical network full model positioning failure are located；
Obtain and measure bust information Step：The measurement bust information of outlet switch is obtained, according to the measurement bust information
The second fault section being located with the electrical network full model positioning failure and the second trip device.
In one embodiment, obtain and measure after bust information Step, also include：Output fault comprehensive information, it is described
Fault comprehensive information includes the interval Fisrt fault, first trip device, second fault section and described second
Trip device.
In one embodiment, obtain and measure after bust information Step, also include：
Generate diagnosis report step：According to positioning obtain the feeder line, the Fisrt fault it is interval, it is described first tripping operation
Equipment, second fault section and second trip device, generate diagnosis report.
In one embodiment, generate after diagnosis report step, also include：Transmit the diagnosis report.
In one embodiment, the measurement is surveyed bust information and includes measuring bust ratio.
In one embodiment, the measurement bust information Step that obtains is specifically included：
Obtain the measurement bust ratio of multiple outlet switchs；
Whether the detection measurement bust ratio is more than predetermined threshold value, when the measurement bust ratio of outlet switch described in it is big
When predetermined threshold value, the second fault section and the second trip device are positioned according to the outlet switch and the electrical network full model.
In one embodiment, the measurement bust information Step that obtains is specifically included：
When the measurement bust ratio for detecting a certain outlet switch is more than predetermined threshold value, the outlet switch is obtained corresponding
Two distant and three distant switches, distribution transformer and fault detector measurement informations on feeder line, according to two is distant and three distant switches, matches somebody with somebody
The measurement information and the electrical network full model of piezoelectric transformer and fault detector positions the second fault section and the second trip device.
In one embodiment, the failure indication information includes board turning action message, fault curre and load current
Value.
In one embodiment, the acquisition distribution power-off event step is specifically included：
Detect the distribution transforming power-off event of the distribution transformer；
When the distribution transforming power-off event is triggered, the distribution transforming power-off event of the distribution transformer is obtained；
According to diagnostic process of the distribution power-off event triggering to the corresponding feeder line.
In one embodiment, the diagnostic process to the corresponding feeder line is specifically included：
Obtain the current value of the distribution transformer of the corresponding feeder line；
According to the first trip device that the current value and the electrical network full model positioning failure of the distribution transformer are located.
Above-mentioned Fault Diagnosis Method for Distribution Networks, by failure indication information, distribution transforming power-off event and measurement bust information,
The part of path of failure generation can be accurately obtained with reference to electrical network full model, the diagnosis efficiency of failure is effectively increased.
Description of the drawings
Fig. 1 is the schematic flow sheet of the Fault Diagnosis Method for Distribution Networks of an embodiment；
Fig. 2 is the schematic flow sheet of the Fault Diagnosis Method for Distribution Networks of another embodiment.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with certain large-scale provincial power network to implement
Example, with reference to accompanying drawing, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to
The present invention is explained, is not intended to limit the present invention.
For example, a kind of Fault Diagnosis Method for Distribution Networks, including build model step：Build electrical network full model；Obtain failure
Information Step：The fault message of feeder line is obtained, according to the feedback that the fault message and the electrical network full model positioning failure are located
Line；Obtain failure indication information step：The failure indication information of fault detector is obtained, according to the failure indication information and institute
The Fisrt fault for stating electrical network full model positioning failure place is interval；Obtain distribution power-off event step：Obtain distribution transformer
Distribution transforming power-off event, according to the first trip device that the distribution transforming power-off event and the electrical network full model positioning failure are located；
Obtain and measure bust information Step：The measurement bust information of outlet switch is obtained, according to the measurement bust information and the electricity
The second fault section and the second trip device that net full model positioning failure is located.
As shown in figure 1, one embodiment of Fault Diagnosis Method for Distribution Networks of the present invention, including：
Step 102, builds model step：Build electrical network full model.
Specifically, the topological model that electrical network full model is constituted for the bus and feeder line of electrical network, for example, the electrical network full model is
Including the topological model of the load equipment on each feeder line and each feeder line in electrical network, the electrical network full model can obtain each feeder line with
And the parameter of load equipment, the parameter includes current value, magnitude of voltage, metrical information and positional information etc., and for example, the electrical network is complete
Model obtains each feeder line and each negative by GIS (Geographic Information System, GIS-Geographic Information System) system
The positional information of lotus equipment.
The electrical network full model collects the relevant mode of the systems such as major network, marketing, power information collection, metering, GIS by obtaining
Type and machine account information, it is established that the electrical network full model based on polygeny data model, so as to set up the topology of electrical network full model.
Step 104, obtains fault message step：The fault message of feeder line is obtained, according to the fault message and the electricity
The feeder line that net full model positioning failure is located.
Specifically, when there is switch trip or during trigger protection action, feeder line is by the switch trip signal for feeding back and guarantor
Shield action signal, for example, in the present embodiment, the fault message of feeder line includes switch trip signal and protection signal, this
In embodiment, according to switch trip signal and protection signal, and occur so as to be accurately positioned failure with reference to electrical network full model
Feeder line, i.e. the feeder line of guilty culprit.
Step 106, obtains failure indication information step：The failure indication information of fault detector is obtained, according to the event
The Fisrt fault that barrier configured information and the electrical network full model positioning failure are located is interval.
Specifically, the failure indication information of fault detector is used to indicate the back segment positioned at the fault detector place circuit
Fault message, therefore, location of fault can be accurately positioned by the failure indication information, that is, position the failure and occur in feedback
Which part of path of line, for example, connects multiple fault detectors on a feeder line, the failure fed back by multiple fault detectors is referred to
Show information, and the back segment that failure occurs a certain fault detector on the feeder line can be accurately obtained with reference to electrical network full model, i.e.,
Fisrt fault is interval.
Step 108, obtains distribution power-off event step：The distribution transforming power-off event of distribution transformer is obtained, is matched somebody with somebody according to described
Become the first trip device that power-off event and the electrical network full model positioning failure are located.
Specifically, trip device is located at the end of feeder line, and in the present embodiment, the trip device is distribution transformer, is matched somebody with somebody
Piezoelectric transformer is located at the end of feeder line, the distribution transformer that failure occurs is obtained according to the distribution power-off event, so as to position this
The part of path of guilty culprit feeder line, specifically, because distribution transformer is located at the end of feeder line, therefore, failure occurs in feeder line
The leading portion of upper distribution transformer.
Step 110, obtains and measures bust information Step：The measurement bust information of outlet switch is obtained, according to the measurement
The second fault section and the second trip device that bust information and the electrical network full model positioning failure are located.
Specifically, outlet switch is located at the top of feeder line, is the switch of bus outlet to feeder line, by the measurement of the outlet
Bust information, and the interval of guilty culprit can be obtained with reference to electrical network full model and the equipment of the tripping operation for causing of breaking down.
Step 112, generates diagnosis report step：The feeder line, the Fisrt fault according to positioning acquisition is interval, described
First trip device, second fault section and second trip device, generate diagnosis report.
In the present embodiment, the diagnosis report is diagnosis output result, and for example, the diagnosis report is believed including fault comprehensive
Breath, for example, according to fault comprehensive information diagnosis report is generated.Specifically, combination failure is located feeder line, the Fisrt fault area
Between and first trip device can accurately obtain failure and a certain part of path on feeder line, specifically, Fisrt fault occur
Interval for the feeder fault indicator back segment, and the first trip device is located at the leading portion of the feeder line, by leading portion and back segment
With reference to, can position on feeder line occur suspected malfunctions part of path；And by former with according to measure bust acquisition of information second
Barrier is interval and the second trip device carries out checking detection, for example, the interval and described first trip device positioning of Fisrt fault is obtained
The fault wire section that the fault wire section for taking obtains with the second fault section and the second trip device positioning is contrasted, when both
When consistent, then can accurately judge that failure occurs, and generate diagnosis report, the line on feeder line occurs so as to be accurately determined failure
Section, and the diagnosis efficiency of failure is effectively increased, even if also can be accurately positioned in the circuit for being not carried out feeder automation
The part of path that failure occurs.
For example, generate after diagnosis report step, also include：Transmit the diagnosis report.For example, by the diagnosis report
Transmit to system, for example, the diagnosis report is transmitted to display device and is shown.
In one embodiment, also include after measurement bust information Step is obtained：
Output fault comprehensive information, the fault comprehensive information include the Fisrt fault it is interval, it is described first tripping operation set
Standby, described second fault section and second trip device.
In the present embodiment, diagnosis report is generated according to fault comprehensive information, and for example, the diagnosis report includes fault comprehensive
Information.
In one embodiment, the measurement is surveyed bust information and includes measuring bust ratio.
Specifically, the measurement bust ratio is the bust ratio of the data for measuring, and for example, the measurement bust ratio is measurement
The bust ratio of electric current, the bust ratio is the down ratio of current value.It is noted that due to the current value on each feeder line
It is not constant uncertain in other words conj.or perhaps, therefore, the monitoring to current value can not accurately monitor the generation of failure, and
The bust of electric current then shows that electric current significantly declines, then can accurately monitor the generation of failure, therefore and in the present embodiment
The fall is monitored, the bust ratio of feeder line measured current is obtained, that is, obtains the measurement bust ratio
In one embodiment, the measurement bust information Step that obtains is specifically included：
Step 110a, obtains the measurement bust ratio of multiple outlet switchs.
Step 110b, detects whether the measurement bust ratio is more than predetermined threshold value, when the measurement of outlet switch described in
When bust ratio is more than predetermined threshold value, according to the outlet switch and electrical network full model positioning the second fault section and second
Trip device.
Specifically, in the present embodiment, when bust ratio is measured predetermined threshold value is more than, is then shown corresponding to the outlet switch
Feeder line breaks down, therefore, it is possible to navigate to the feeder line of guilty culprit according to the measurement bust ratio.
In one embodiment, when the measurement bust ratio for detecting a certain outlet switch is more than predetermined threshold value, obtain
Two distant and three distant switches, distribution transformer and fault detector measurement informations on the corresponding feeder line of the outlet switch, according to
Two distant and three distant switches, distribution transformer and fault detector measurement informations and the electrical network full model position the second faulty section
Between and the second trip device.
Specifically, in the present embodiment, the state and measurement information of the outlet switch of all transformer stations of system real-time monitoring,
Outlet switch normally runs but its electric current is once occurring bust and reaching setting ratio, then trigger the fault diagnosis of whole piece feeder line：
Total calling order is issued to the acquisition terminal involved by this feeder line, fault detector, distribution transformer, and according to the outlet for returning
Switch, disconnecting link, distribution transformer, the data identification power failure equipments scope of fault detector, positioning failure is interval.
In one embodiment, the failure indication information includes board turning action message, fault curre and load current
Value.
Specifically, the board turning action message is normal or abnormal information, for indicating the corresponding feeder line of the fault detector
Back segment circuit it is normal or abnormal, when the board turning action message of a certain fault detector is abnormal information board turning shape in other words
State is abnormality, then the circuit of the back segment of the corresponding feeder line of the fault detector is abnormal, shows that the part of path breaks down.
Current value when load current value is equipment or circuit normal work, fault curre is for equipment or circuit break down
When current value.
In the present embodiment, obtain failure indication information step to specifically include：
Obtain the board turning action message of fault detector, fault curre and load current value, according to board turning action message,
The Fisrt fault that fault curre, load current value and the electrical network full model positioning failure are located is interval.
Board turning action message, fault curre and load current value according to each fault detector, picks out and breaks down
The fault detector of board turning, so as to the Fisrt fault being located with reference to electrical network full model positioning failure is interval.
The measurement information of system real-time monitoring fault detector, receives the short-circuit board turning signal of certain fault detector
Afterwards, the diagnostic process of whole piece feeder line is triggered：It is preposition with public network collection to interact, whole fault detectors of this feeder line are issued always
Calling order；Board turning state, fault current and load current value identification according to the total fault detector according in for returning is set out
The indicator of raw failure board turning；Suspicious fault section is positioned based on the relation in the electrical network full model of fault detector.
In one embodiment, the acquisition distribution power-off event step is specifically included：
Step 108a, detects the distribution transforming power-off event of the distribution transformer.
Step 108b, when the distribution transforming power-off event is triggered, obtains the distribution transforming power failure thing of the distribution transformer
Part.
Step 108c, according to diagnostic process of the distribution power-off event triggering to the corresponding feeder line.
For example, the diagnostic process to the corresponding feeder line is specifically included：
Step A, obtains the current value of the distribution transformer of the corresponding feeder line.
Step B, according to the first jump that the current value and the electrical network full model positioning failure of the distribution transformer are located
Brake apparatus.
In the present embodiment, the measurement information of system real-time detection distribution transformer, receives certain distribution transformer
After distribution transforming power-off event, the diagnostic process to whole piece feeder line is triggered：Acquisition distribution transformer is interacted with power information acquisition system
Measurement information and filter out the distribution transformer of power failure, the electrical network full model positioning based on power failure distribution transforming causes the tripping operation of power failure
Equipment, so as to according to trip device positioning failure place part of path.
In a specific embodiment, the implementation process of the Fault Diagnosis Method for Distribution Networks is as follows：
1) electrical network full model and full model topological analysis are built based on polygeny data model.
Based on distribution network model collect splicing major network, marketing, metering, use adopt, the pertinent model information of multiple systems such as GIS,
Machine account information, builds static full electric network model；And the equipment state according to collection in application service carries out topology point with measurement
Analysis, realizes the dynamic topology analysis of full model.
2) fault diagnosis based on distribution transforming information, with extraction system interact according to distribution transforming power-off event, calling measurement information
Analysis judges power failure range, and positions trip device with reference to topological analysis.
After monitoring the power-off event of distribution transforming, the diagnostic process of whole piece feeder line is triggered：To under whole distribution transformings of this feeder line
Send out total calling order；The distribution transforming of power failure is filtered out according to the current value of the total distribution transforming according in for returning, power failure range is confirmed；It is based on
What the topological power supply relation positioning of power failure distribution transforming caused power failure cut-offs equipment.
3) fault diagnosis is carried out based on measurement bust, the measurement bust ratio, calling equipment according to outlet switch is measured, knot
Closing feeder line state of other carries out accident analysis positioning failure interval and trip device.
Monitor that outlet switch measures bust situation and carries out fault diagnosis, measurement bust ratio according to outlet switch, call together
The measurement of the equipment such as the distant switch of two Remote Sensing 3, distribution transforming, the fault detector of affiliated feeder line is called out, it is determined that actual power-off condition, bonding apparatus
Topology status carry out that accident analysis positioning failure is interval and trip device.
4) fault diagnosis is carried out based on fault detector, the board turning action for interacting according to public network acquisition system therefore referring to is believed
Breath, fault curre, load current value confirm thus refer to action situation, analyzing and positioning fault section.
Monitoring fault detector information simultaneously carries out fault diagnosis, and the board turning action for obtaining therefore referring to is interacted with public network acquisition system
Information, fault curre, load current value；Therefore while call its total evidence when referring to board turning action, confirm each therefore refer to actual dynamic
Make situation；It is interval according to fault information analysis positioning failure that is all on feeder line therefore referring to.
5) multisource data fusion carries out fault diagnosis, with multiple system interactions to during failure chronologically on three remote signalling sent
Cease therefore refer to, distribution transforming information carries out comprehensive analysis, amendment progressive to diagnostic result is final to be realized being accurately positioned.
Multisystem interaction collection outlet switch measurement information, the Remote Sensing 3 remote sensing information of feeder line two thus refer to information, distribution transforming information, meter
Draw the multi-source data such as have a power failure, when distribution network failure occurs because the different all kinds of fault-signals of physical communication in different sequential by giving,
The method will collect various types of signal aggregate analysis, and amendment progressive to diagnostic result is final to be realized being accurately positioned.
In a specific embodiment, the implementation process of the Fault Diagnosis Method for Distribution Networks is as follows：
1) electrical network full model and full model topological analysis are built based on polygeny data model
Based on distribution network model collect splicing major network, marketing, metering, use adopt, the correlation model of multiple systems such as GIS, structure
Static models；And the equipment state according to collection in application service carries out topological analysis with measurement, realizes the dynamic of full model
Topological analysis.
For example, by EMS (Energy Management System, electric energy management system) major network models and DMS
(Distribution Management System, Distribution Management System) distribution network model is spliced, and builds full electric network mould
Type, and real-time topology analysis is carried out according to the equipment state of collection in application service.
2) multi-source metric data fusion is accessed, and builds real time data center, fault message real-time monitoring and alarm
Access conventional feeder automation information；With EMS major network system interactions, collection 10KV busbar voltages, feeder line outlet
The measurement informations such as switch；Interact with power information acquisition system, gather power-off event, the measurement information of distribution transforming；With battalion's match system
Interaction obtains the information such as Unit account of plant, scheduled outage；Public network acquisition system accesses failure indicator terminal, gathers fault detector
Board turning, measurement information.
3) fault diagnosis based on feeder automation information
Will be according to switch trip information, excessively stream Information locating and isolated fault area when realizing the line fault of feeder automation
Between, release FA schemes.
4) fault diagnosis based on distribution transforming information, with extraction system interact according to distribution transforming information analysis position power failure range with
Trip device
The measurement information of system real-time monitoring distribution transforming, after receiving the power-off event of certain distribution transforming, triggers whole piece feeder line
Diagnostic process：The distribution transforming for obtaining the measurement information of distribution transforming and filtering out power failure is interacted with power information acquisition system；Based on power failure
What the topological power supply relation positioning of distribution transforming caused power failure cut-offs equipment.
5) fault diagnosis based on fault detector, interacts according to public network acquisition system therefore refers to information analysis positioning failure
It is interval
The measurement information of system real-time monitoring fault detector, receives the short-circuit board turning signal of certain fault detector
Afterwards, the diagnostic process of whole piece feeder line is triggered：It is preposition with public network collection to interact, whole fault detectors of this feeder line are issued always
Calling order；Board turning state, fault current and load current value identification according to the total fault detector according in for returning is set out
The indicator of raw failure board turning；Topological power supply relation based on fault detector positions suspicious fault section.
6) based on the fault diagnosis for measuring bust, measurement bust ratio according to outlet switch, with reference to feeder line miscellaneous equipment
State carries out accident analysis positioning failure interval and trip device
The state and measurement information of all transformer station's outlet switchs of system real-time monitoring, outlet switch normally runs but its electricity
Stream then triggers the fault diagnosis of whole piece feeder line once bust occurs and setting ratio is reached；To the collection end involved by this feeder line
End, fault detector, distribution transforming issue total calling order, and according to the data of the switch, disconnecting link, distribution transforming, fault detector for returning
Identification power failure equipments scope, positioning failure is interval.
7) fault diagnosis of multisource data fusion, with multiple system interactions to during failure successively on send three remote sensing informations, therefore
Refer to, distribution transforming information carries out comprehensive analysis, amendment progressive to diagnostic result is final to be realized being accurately positioned
The collection of above-mentioned signal in the non-power distribution network for perfecting information not necessarily can possess, but whole Fault Diagnosis Strategy
Compatible various situations.Meanwhile, during physical fault all kinds of fault-signals on send Time Inconsistency, system is believed based on follow-up failure
Cease the fault diagnosis conclusion to same failure before constantly to be corrected.Known plan is filtered during whole diagnosis simultaneously
Outage information, is diagnosed only for fault message.
As shown in Fig. 2 concrete diagnosis process of the Fault Diagnosis Method for Distribution Networks to failure according to the flow process：
Step 1, fault message real-time monitoring.
The fault message real-time monitoring includes the monitoring to feed line automatization system and to fault detector, distribution transformer
The monitoring of device and outlet switch.Specifically, real-time monitoring can be carried out to fault message by electrical network full model topology.
Step 2, receives switch trip, protection signal.
Switch trip signal and protection signal are received from feed line automatization system.
Step 3, conventional feeder automation fault location.
In this step, the switch trip signal and protection signal to receiving is made conventional feeder automation failure and is determined
Position, to determine that failure occurs position.
Step 4, generates diagnosis report Report1.
Diagnosis report Report1 provides interval position that suspected malfunctions are located.
Step 5, receives fault detector board turning action signal or distribution transforming power-off event or outlet switch measures bust letter
Breath.
In this step, receive board turning action signal from fault detector, distribution transformer or outlet switch or distribution transforming stops
Electric event or outlet switch measure bust information.In the present embodiment, step 5 can synchronously be carried out with step 2, also may be used
Being carried out according to sequential with step 2.
Step 6, issues always to call together and changes order to the fault detector of whole piece feeder line.
Specifically, after the board turning action signal of fault detector is received, under the feeder line being located to the fault detector
Total calling order is sent out, total calling order for example sends related for asking each fault detector to send relevant information to system
Information.So that the fault detector on the feeder line sends board turning state, fault current and load current.
Step 7, the board turning state, fault current and load current according to fault detector determines that the failure of actual board turning refers to
Show device.
In this step, board turning state, fault current and the load current of fault detector is received, to determine the failure of board turning
Indicator such that it is able to determine that failure occurs by the fault detector of the board turning of the determination interval.
Step 8, topological analysis, the suspicious interval of positioning failure.
In this step, it is determined that after the fault detector of actual board turning, it is analyzed with reference to the topology of electrical network full model, it is fixed
The interval that position failure occurs.
Step 9, generates diagnosis report Report2.
It is suspicious interval according to the failure of step 8 and combine diagnosis report Report1 generation diagnosis reports
Report2, diagnosis report Report2 provide interval position that suspected malfunctions are located.
Step 10, issues always to call together and changes order to the distribution transforming of whole piece feeder line.
In this step, distribution transforming is distribution transformer, specifically, when the distribution transforming power-off event for receiving distribution transformer
Afterwards, always calling order is issued to the feeder line that the distribution transformer is located, total calling order is used to ask each distribution transformer to be sent out
Relevant information is sent, for example, sends relevant information to system.So that the current value of the distribution transformer transmission distribution transforming on the feeder line,
Power-off event, scheduled outage information.In the present embodiment, step 10 both can be synchronously carry out with step 6, or with step
Rapid 6 are carried out according to sequential.
Step 11, the current value, power-off event, scheduled outage information according to distribution transforming, determines the scope of fault outage.
In this step, current value, power-off event and scheduled outage information that each distribution transformer on feeder line sends are received,
The scope of fault outage is judged according to above- mentioned information, specifically, because distribution transformer is located at the end of feeder line, therefore, pass through
It is abnormal that above- mentioned information can determine that the numerical value of a certain distribution transformer on feeder line occurs, then on the feeder line distribution transformer leading portion
It is then interval for suspected malfunctions.
Step 12, topological analysis positions suspicious trip device.
In this step, trip device is distribution transformer, is analyzed with reference to the topology of electrical network full model, it is determined that tripping operation
Distribution transformer.
Step 13, generates diagnosis report Report3.
According to the suspicious trip device of step 12 and combine diagnosis report Report2 and generate diagnosis report Report3, should
Diagnosis report Report3 provides suspected malfunctions corresponding trip device.
Step 13, fault diagnosis report is integrated.
In this step, diagnosis report Report1, diagnosis report Report2 and diagnosis report Report3 are integrated, with essence
Really judge the generation of failure, specifically, combine the Trouble Report in certain hour before, recognize whether same failure, i.e., due to
Diagnosis report Report1, diagnosis report Report2 and diagnosis report Report3 generation times are possible to inconsistent, when default
Diagnosis report Report1, diagnosis report Report2 and diagnosis report Report3, and above-mentioned diagnosis report are sequentially generated in time
Suspected fault interval it is identical, then can determine that failure occur, and can accurately obtain failure generation concrete part of path position.
So as to effectively prevent the erroneous judgement of failure, and effectively increase abort situation diagnosis efficiency.
Step 14, final fault diagnosis report Report4.
Specifically, when it is determined that failure occur, and finally get failure generation position, then generate diagnosis report
Report4。
The enforcement of the Fault Diagnosis Method for Distribution Networks of the various embodiments described above has the effect that：
1) correlation model, the machine account information based on the systems such as multiple, splices to necessary information, needed for collecting
Power distribution network full model, it is to avoid repeat to model, realizes that source safeguards resource-sharing, reduces investment and maintenance cost.
2) the method builds the data center that it is based on multi-source data, and for fault diagnosis comprehensive basic data is provided, and carries
The integrated application of high data.
3) the method is applied to all kinds of electrical power distribution automatization systems or electricity consumption scheduling system, especially to the non-distribution for perfecting information
Web area provides the method for diagnosing faults of automation and substitutes existing manual analysis.
4) this method realizes multithreading and calls, and can simultaneously carry out the diagnostic analysis of a lot of failures.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of Fault Diagnosis Method for Distribution Networks, it is characterised in that include：
Build model step：Build electrical network full model；
Obtain fault message step：The fault message of feeder line is obtained, is positioned according to the fault message and the electrical network full model
The feeder line of guilty culprit；
Obtain failure indication information step：Obtain the failure indication information of fault detector, according to the failure indication information and
The Fisrt fault that the electrical network full model positioning failure is located is interval；
Obtain distribution power-off event step：Obtain the distribution transforming power-off event of distribution transformer, according to the distribution transforming power-off event and
The first trip device that the electrical network full model positioning failure is located；
Obtain and measure bust information Step：The measurement bust information of outlet switch is obtained, according to the measurement bust information and institute
State second fault section and the second trip device at electrical network full model positioning failure place.
2. Fault Diagnosis Method for Distribution Networks according to claim 1, it is characterised in that obtain measure bust information Step it
Afterwards, also include：Output fault comprehensive information, the fault comprehensive information include the Fisrt fault it is interval, it is described first tripping operation
Equipment, second fault section and second trip device.
3. Fault Diagnosis Method for Distribution Networks according to claim 1, it is characterised in that obtain measure bust information Step it
Afterwards, also include：
Generate diagnosis report step：According to positioning obtain the feeder line, the Fisrt fault it is interval, it is described first tripping operation set
Standby, described second fault section and second trip device, generate diagnosis report.
4. Fault Diagnosis Method for Distribution Networks according to claim 2, it is characterised in that after generating diagnosis report step,
Also include：Transmit the diagnosis report.
5. Fault Diagnosis Method for Distribution Networks according to claim 1, it is characterised in that bust information is surveyed in the measurement to be included
Measure bust ratio.
6. Fault Diagnosis Method for Distribution Networks according to claim 5, it is characterised in that the acquisition measures bust information step
Suddenly specifically include：
Obtain the measurement bust ratio of multiple outlet switchs；
Whether the detection measurement bust ratio is more than predetermined threshold value, when the measurement bust ratio of outlet switch described in is more than pre-
If during threshold value, according to the outlet switch and the electrical network full model the second fault section and the second trip device are positioned.
7. Fault Diagnosis Method for Distribution Networks according to claim 6, it is characterised in that the acquisition measures bust information step
Suddenly specifically include：
When the measurement bust ratio for detecting a certain outlet switch is more than predetermined threshold value, the corresponding feeder line of the outlet switch is obtained
On two distant and three distant switches, distribution transformer and fault detector measurement informations, according to two is distant and three distant switches, distribution become
The measurement information and the electrical network full model of depressor and fault detector positions the second fault section and the second trip device.
8. Fault Diagnosis Method for Distribution Networks according to claim 1, it is characterised in that the failure indication information includes turning over
Board action message, fault curre and load current value.
9. Fault Diagnosis Method for Distribution Networks according to claim 1, it is characterised in that the acquisition distribution power-off event step
Suddenly specifically include：
Detect the distribution transforming power-off event of the distribution transformer；
When the distribution transforming power-off event is triggered, the distribution transforming power-off event of the distribution transformer is obtained；
According to diagnostic process of the distribution power-off event triggering to the corresponding feeder line.
10. Fault Diagnosis Method for Distribution Networks according to claim 9, it is characterised in that described to the corresponding feeder line
Diagnostic process specifically include：
Obtain the current value of the distribution transformer of the corresponding feeder line；
According to the first trip device that the current value and the electrical network full model positioning failure of the distribution transformer are located.
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