CN110068746A - Gird fault diagnosis method and system - Google Patents
Gird fault diagnosis method and system Download PDFInfo
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- CN110068746A CN110068746A CN201910288065.3A CN201910288065A CN110068746A CN 110068746 A CN110068746 A CN 110068746A CN 201910288065 A CN201910288065 A CN 201910288065A CN 110068746 A CN110068746 A CN 110068746A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The embodiment of the invention provides a kind of gird fault diagnosis method and system, the wave-record chart of the fault wave recording device acquisition accessed in power grid after being occurred by acquisition failure, wave-record chart is analyzed, can determine the information such as abort situation, fault type, fault current and the false voltage in the power grid for including in wave-record chart.Wave-record chart is matched with the knowledge information in knowledge base, searches out the knowledge information to match in knowledge base with wave-record chart.The corresponding known fault equipment of obtained knowledge information is the faulty equipment in power grid.The method can fast implement the diagnostic analysis of electric network fault, subsequent accident treatment, which is carried out, for dispatcher plays strong supporting role, powerful technical support is provided for the operation and scheduling of power grid, improves the diagnostic analysis ability of electric network fault, and then can ensure the safe and stable operation of power grid.
Description
Technical field
The present embodiments relate to electric network failure diagnosis technical fields, more particularly, to gird fault diagnosis side
Method and system.
Background technique
Currently, the increase of the Quantity with each department intelligent substation, a large amount of new technology and equipments are applied
And popularization.
Under the overall background of intelligent substation, intelligent sensing technology and network technology are widely used in all kinds of smart machines
In, therefore the data that can be monitored are also more and more abundant.With 220kV can only substation Network records analysis system
For, 24 hours record data volumes can reach 740GB or so.Meanwhile under the same specification of IEC61850 standard, pass through light
Fine digitized mode carries out information transmission, brings flexibility for the various information access and distribution of substation, improves station
The exchange capacity and data-handling capacity of interior information.
It is compared with conventional substation, intelligent substation uses numerous new technologies, such as the shape of primary equipment and secondary device
State monitoring, electronic mutual inductor, integrated monitoring system, 1588 network clock synchronization technologies, integrated protection supervisory equipment etc..And by
Primary equipment and secondary device are still corresponded respectively in the research at this stage for intelligent substation, it can not be by intelligent substation
The abundant information of offer is maximumlly utilized, and causes existing gird fault diagnosis method to electric network failure diagnosis knot
The confidence level of fruit is poor.
Therefore, now be badly in need of a kind of gird fault diagnosis method and system are provided, to intelligent substation provide it is new into
Row makes full use of to improve the confidence level of electric network failure diagnosis result.
Summary of the invention
In order to overcome the problems referred above or it at least is partially solved the above problem, the embodiment of the invention provides a kind of power grid events
Hinder diagnostic analysis method and system.
In a first aspect, the embodiment of the invention provides a kind of gird fault diagnosis methods, comprising:
The wave-record chart of the fault wave recording device acquisition accessed in power grid after failure occurs is obtained, and to the wave-record chart
It is analyzed, the wave-record chart is matched with the knowledge information in knowledge base；The knowledge information is the knowledge base
Middle storage, corresponding with known fault equipment in power grid information；
Based on the matched knowledge information of the wave-record chart, determine the faulty equipment in the power grid.
Second aspect, the embodiment of the invention provides a kind of gird fault diagnosis systems, comprising: data obtaining module
With faulty equipment determining module.Wherein,
Data obtaining module, for obtaining the recording letter of the fault wave recording device acquisition accessed in power grid after failure occurs
Breath, and the wave-record chart is analyzed, wave-record chart will be stated and matched with the knowledge information in knowledge base；The knowledge
Information is information store in the knowledge base, corresponding with known fault equipment in power grid；
Faulty equipment determining module, for based on the matched knowledge information of the wave-record chart, determine in the power grid
Faulty equipment.
The third aspect, the embodiment of the invention provides a kind of electronic equipment, comprising:
At least one processor, at least one processor, communication interface and bus；Wherein,
The processor, memory, communication interface complete mutual communication by the bus；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
It enables, to execute the gird fault diagnosis method of first aspect offer.
Fourth aspect, the embodiment of the invention provides a kind of non-transient computer readable storage medium, the non-transient meter
Calculation machine readable storage medium storing program for executing stores computer instruction, and the computer instruction makes the computer execute the electricity that first aspect provides
Net Analysis on Fault Diagnosis method.
A kind of gird fault diagnosis method and system provided in an embodiment of the present invention, electricity after being occurred by acquisition failure
The wave-record chart of the fault wave recording device acquisition accessed in net, analyzes wave-record chart, can determine in wave-record chart
The information such as the abort situation in power grid, fault type, fault current and the false voltage that include.By wave-record chart and knowledge base
In knowledge information matched, search out the knowledge information to match in knowledge base with wave-record chart.Obtained knowledge information
Corresponding known fault equipment is the faulty equipment in power grid.The gird fault diagnosis side provided in the embodiment of the present invention
Method introduces knowledge base, by knowledge information storing in knowledge base, corresponding with known fault equipment in power grid, believes recording
Breath is matched, and known fault equipment corresponding with the matched knowledge information of wave-record chart is determined as to the faulty equipment of power grid.
The method can fast implement the diagnostic analysis of electric network fault, carry out subsequent accident treatment for dispatcher and play strong support work
With providing powerful technical support for the operation and scheduling of power grid, improve the diagnostic analysis ability of electric network fault, and then can be with
The safe and stable operation of power grid is ensured.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram of gird fault diagnosis method provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of gird fault diagnosis method provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of gird fault diagnosis system provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of gird fault diagnosis methods, comprising:
S1 obtains the wave-record chart of the fault wave recording device acquisition accessed in power grid after failure occurs, and to the recording
Information is analyzed, and will be stated wave-record chart and is matched with the knowledge information in knowledge base；The knowledge information is the knowledge
Information being stored in library, corresponding with known fault equipment in power grid；
S2, based on the matched knowledge information of the wave-record chart, determine the faulty equipment in the power grid.
Specifically, in the gird fault diagnosis method provided in the embodiment of the present invention firstly the need of determine power grid send out
After raw failure, the wave-record chart of the fault wave recording device acquisition accessed in power grid, fault wave recording device is specifically as follows failure record
Wave device.Under normal circumstances, the station end in power grid is arranged in fault wave recording device.Record can be established in the embodiment of the present invention in power grid
Wave main station system and Prudential Master system are realized by Prudential Master system and access protective relaying device and failure wave-recording in power grid
Communication between device is completed to station end protection, the definite value of fault wave recording device, switching value, analog quantity, action event and record
The acquisition and storage of wave information are filed, and the wave-record chart of the fault wave recording device acquisition to station end is realized by recording main station system
Automatically it is obtained.Recording main station system obtains the wave-record chart of the fault wave recording device acquisition accessed in power grid after failure occurs
Afterwards, wave-record chart is analyzed, determines that abort situation, fault type, the failure in the power grid for including in wave-record chart are electric
The information such as stream and false voltage.Then wave-record chart is matched with the knowledge information in knowledge base.
Wherein, knowledge information is stored in knowledge base, knowledge information refers to record corresponding with known fault equipment in power grid
Wave information.That is, what is actually stored in knowledge base is the corresponding relationship between known fault equipment and knowledge information.Know
It is usually true according to expertise and experience for knowing the corresponding relationship between the known fault equipment and knowledge information stored in library
It is fixed.By matching wave-record chart with the knowledge information in knowledge base, searches out in knowledge base and match with wave-record chart
Knowledge information.The corresponding known fault equipment of obtained knowledge information is the faulty equipment in power grid.
The gird fault diagnosis method provided in the embodiment of the present invention accesses in power grid after being occurred by acquisition failure
Fault wave recording device acquisition wave-record chart, wave-record chart is analyzed, can determine the electricity for including in wave-record chart
The information such as abort situation, fault type, fault current and false voltage in net.By the knowledge in wave-record chart and knowledge base
Information is matched, and the knowledge information to match in knowledge base with wave-record chart is searched out.Obtained knowledge information is corresponding
Know that faulty equipment is the faulty equipment in power grid.The gird fault diagnosis method provided in the embodiment of the present invention introduces
Knowledge base, by knowledge information being stored in knowledge base, corresponding with known fault equipment in power grid, to wave-record chart progress
Match, known fault equipment corresponding with the matched knowledge information of wave-record chart is determined as to the faulty equipment of power grid.The method can
The diagnostic analysis of electric network fault is fast implemented, subsequent accident treatment is carried out for dispatcher and plays strong supporting role, for electricity
The operation and scheduling of net provide powerful technical support, improve the diagnostic analysis ability of electric network fault, and then can ensure
The safe and stable operation of power grid.
On the basis of the above embodiments, a kind of gird fault diagnosis method is additionally provided in the embodiment of the present invention,
After the wave-record chart of the fault wave recording device acquisition accessed in power grid after the acquisition failure occurs, further includes:
The wave-record chart is merged with history wave-record chart, fused result is stored into database.
Specifically, the gird fault diagnosis method provided in the embodiment of the present invention, the failure record accessed in power grid
After the wave-record chart of wave apparatus acquisition, wave-record chart can be sent to data sink, pass through the detection of data sink
Wave-record chart is merged with history wave-record chart with intellectual analysis, fused result is stored into database, is passed through
Database is filed, and electric network fault is further analyzed convenient for subsequent.
On the basis of the above embodiments, the gird fault diagnosis method provided in the embodiment of the present invention, in determination
After faulty equipment in the power grid, further includes:
Trouble Report is generated, and the Trouble Report is sent to the control centre of the power grid.
Specifically, in the embodiment of the present invention after determining the faulty equipment in power grid, Trouble Report can also be generated, so
Trouble Report is sent to the control centre of power grid afterwards, subsequent processing is carried out by the staff of control centre, or directly
It is issued by control centre.
On the basis of the above embodiments, the gird fault diagnosis method provided in the embodiment of the present invention is described right
The wave-record chart is analyzed, and is specifically included:
COMTRADE waveform analysis is carried out to the wave-record chart, determine abort situation in the power grid, fault type,
Fault current and false voltage.
Specifically, being analyzed in the embodiment of the present invention wave-record chart specifically can be using COMTRADE format to recording
Information carries out waveform analysis, undergo wave file delete choosing, mergings is extracted in channel, Frequency Synchronization, clock synchronization carry out later it is professional
Fault point waveform analysis can determine that abort situation, fault type, fault current and failure in power grid after waveform analysis
The information such as voltage can also determine the impedance for separate protective device installation place of being out of order.Wherein, COMTRADE format is IEEE
Standard power systems transient data interchange general format.Fault current includes phase current and zero sequence negative-sequence current etc..
On the basis of the above embodiments, the gird fault diagnosis method provided in the embodiment of the present invention, further includes:
Obtain protection act information after failure occurs in the power grid, switch events journal and the power grid
Real-time Power Flow section information；
Based on the protection act information, the switch events journal and the Real-time Power Flow section information, really
Faulty equipment in the fixed power grid.
Specifically, it as shown in Fig. 2, in the gird fault diagnosis method provided in the embodiment of the present invention, is sent out determining
After raw failure, obtain protection act information in power grid, switch events sequence (sequence of events, SOE) record with
And Real-time Power Flow section information, these information can obtain in several seconds after the failure occurred.Then to protection act information, open
It closes SOE record and Real-time Power Flow section information is analyzed, switched in the system operation mode, fault zone when according to failure
The information such as divide-shut brake action situation, protective device action situation, automatic safety device action situation carry out fast failure analysis and examine
It is disconnected, determine the faulty equipment in power grid.
Wherein, protection act information usually obtains in relay protection failure information system (system i.e. information-preserving).Switch
SOE record includes breaker breaker tripping and closing record, protection act journal.When remote signalling displacement such as switch change occur for equipment in power grid
When position, electrical protection apparatus or intelligent electric instrument can automatically record the lower displacement time, conjugate it is corresponding when reason, switch trip
Telemetering magnitude (such as corresponding three-phase current, active power) forms switch SOE record, in order to ex-post analysis.The reality of power grid
Trend flow section information refers to the excessive stability that will affect network system or partial electric grid of certain Line Flows, power grid in power grid
The trend of these interior routes is the Real-time Power Flow section information of power grid.
After determining the faulty equipment in power grid, quick diagnosis failure bulletin can also be generated, by quick diagnosis failure letter
Report is sent to control centre, to obtain the relevant most core of failure in the operator on duty of control centre after a failure shortest time
The information and data of the heart, can quick positioning failure equipment.
The wave-record chart that will acquire in the embodiment of the present invention and the protection act information of acquisition, switch events journal with
And the Real-time Power Flow section information of the power grid combines, the comprehensive faulty equipment determined in power grid, to make up using different letters
The faulty equipment bring error determined in power grid is ceased, the accuracy of the diagnostic analysis of power grid internal fault equipment is improved.
On the basis of the above embodiments, the gird fault diagnosis method provided in the embodiment of the present invention, further includes:
Obtain the traveling wave data after failure occurs in the power grid；
Based on the traveling wave data, the position of the faulty equipment is determined.
Specifically, traveling wave main station system can be established in the embodiment of the present invention in power grid, is obtained by traveling wave main station system
Traveling wave data in power grid after failure occurs, and determine according to traveling wave data the distance of faulty equipment, and then determine faulty equipment
Position.
On the basis of the above embodiments, the gird fault diagnosis method provided in the embodiment of the present invention, further includes:
The incidence relation of primary equipment and secondary device in the power grid is determined, based on the incidence relation to the power grid
Interior primary equipment carries out fault diagnosis.
Specifically, in the embodiment of the present invention, since secondary device is perception to primary equipment in power grid, be acquisition, point
The process of analysis, optimization and control, such as dispatch automated system, protection failure information system are carried out to the information of primary equipment
Acquisition in real time, monitoring, analysis processing, therefore established in the embodiment of the present invention in power grid between primary equipment and secondary device
Incidence relation handles the information collection and analysis of primary equipment by secondary device, may be implemented in power grid each one
The fault diagnosis of secondary device specifically can be and judge the discrete signal of equipment each in power grid, determines in power grid and respectively set
Whether the action signal between standby is relevant, and the action signal in the short time is that multiple failure generates or uncorrelated twice
What failure generated.In order to improve the precision of fault diagnosis result, it is also necessary to take cluster, grouping, association to draw accident analysis
Point.
The gird fault diagnosis method provided in the embodiment of the present invention, can be in the first time analysis that failure occurs
Accurate failure cause out provides intelligent decision function for the dispatcher of control centre and administrative department at different levels, improves power grid association
Regulation system and emergency disposal ability can provide strong technical support for the processing of power grid internal fault, the event of power grid can be improved
Hinder analysis ability, previous " manual analysis type ", " case type " scheduling can be made to rise to online " fault diagnosis type ", " intelligence
Type " scheduling.System information-preserving and all kinds of stable states of OCS system, Temporal Data are comprehensively utilized, carries out electric network failure diagnosis rapidly, really
Determine abort situation, analyze nature of trouble, provide Trouble Report, carries out accident treatment for dispatcher and play strong support work
With.By establishing perfect Prudential Master system, recording main station system, traveling wave main station system, complete to electric network fault information
Acquisition and is issued intellectual analysis by all kinds of means.By establishing the incidence relation of primary equipment and secondary device, equipment is felt
Know, acquire, analyze, optimize and control, takes cluster, grouping, association to divide accident analysis, can more accurately realize each
The fault diagnosis of primary equipment.
As shown in figure 3, providing a kind of electric network failure diagnosis point on the basis of the above embodiments, in the embodiment of the present invention
Analysis system, comprising: data obtaining module 31 and faulty equipment determining module 32.Wherein,
Data obtaining module 31 is used to obtain the recording letter of the fault wave recording device acquisition accessed in power grid after failure occurs
Breath, and the wave-record chart is analyzed, wave-record chart will be stated and matched with the knowledge information in knowledge base；The knowledge
Information is information store in the knowledge base, corresponding with known fault equipment in power grid；
Faulty equipment determining module 32 be used for based on the matched knowledge information of the wave-record chart, determine in the power grid
Faulty equipment.
Specifically, the effect of each module and above-mentioned side in the gird fault diagnosis system provided in the embodiment of the present invention
The operating process of each step is one-to-one in method class embodiment, and the effect reached is also consistent, in the embodiment of the present invention
It is not specifically limited herein.
As shown in figure 4, on the basis of the above embodiments, a kind of electronic equipment is provided in the embodiment of the present invention, comprising:
Processor (processor) 401, memory (memory) 402, communication interface (Communications Interface) 403
With bus 404；Wherein,
The processor 401, memory 402, communication interface 403 complete mutual communication by bus 404.It is described to deposit
Reservoir 402 is stored with the program instruction that can be executed by the processor 401, and processor 401 is used to call the journey in memory 402
Sequence instruction, to execute method provided by above-mentioned each method embodiment, for example, it is inscribed to obtain power grid after failure occurs by S1
The wave-record chart of the fault wave recording device acquisition entered, and the wave-record chart is analyzed, wave-record chart and knowledge base will be stated
In knowledge information matched；The knowledge information is known fault equipment pair in store in the knowledge base and power grid
The information answered；S2, based on the matched knowledge information of the wave-record chart, determine the faulty equipment in the power grid.
Logical order in memory 402 can be realized by way of SFU software functional unit and as independent product pin
It sells or in use, can store in a computer readable storage medium.Based on this understanding, technical side of the invention
Substantially the part of the part that contributes to existing technology or the technical solution can be with the shape of software product in other words for case
Formula embodies, which is stored in a storage medium, including some instructions are used so that a calculating
Machine equipment (can be personal computer, server or the network equipment etc.) executes each embodiment the method for the present invention
All or part of the steps.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. are various can store program
The medium of code.
On the basis of the above embodiments, a kind of non-transient computer readable storage medium is provided in the embodiment of the present invention
Matter, the non-transient computer readable storage medium store computer instruction, and the computer instruction executes the computer
Method provided by above-mentioned each method embodiment, for example, S1 obtains the failure wave-recording dress accessed in power grid after failure occurs
Set the wave-record chart of acquisition, and the wave-record chart analyzed, will state knowledge information in wave-record chart and knowledge base into
Row matching；The knowledge information is information store in the knowledge base, corresponding with known fault equipment in power grid；S2, base
In with the matched knowledge information of the wave-record chart, determine the faulty equipment in the power grid.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of gird fault diagnosis method characterized by comprising
The wave-record chart of the fault wave recording device acquisition accessed in power grid after failure occurs is obtained, and the wave-record chart is carried out
Analysis, the wave-record chart is matched with the knowledge information in knowledge base；The knowledge information is to deposit in the knowledge base
Storage, corresponding with known fault equipment in power grid information；
Based on the matched knowledge information of the wave-record chart, determine the faulty equipment in the power grid.
2. gird fault diagnosis method according to claim 1, which is characterized in that after acquisition failure generation
After the wave-record chart of the fault wave recording device acquisition accessed in power grid, further includes:
The wave-record chart is merged with history wave-record chart, fused result is stored into database.
3. gird fault diagnosis method according to claim 1, which is characterized in that determining the event in the power grid
After barrier equipment, further includes:
Trouble Report is generated, and the Trouble Report is sent to the control centre of the power grid.
4. gird fault diagnosis method according to claim 1, which is characterized in that it is described to the wave-record chart into
Row analysis, specifically includes:
COMTRADE waveform analysis is carried out to the wave-record chart, determines abort situation, fault type, the failure in the power grid
Electric current and false voltage.
5. gird fault diagnosis method according to claim 1, which is characterized in that further include:
Obtain the real-time of protection act information after failure occurs in the power grid, switch events journal and the power grid
Trend section information；
Based on the protection act information, the switch events journal and the Real-time Power Flow section information, institute is determined
State the faulty equipment in power grid.
6. gird fault diagnosis method according to claim 1, which is characterized in that further include:
Obtain the traveling wave data after failure occurs in the power grid；
Based on the traveling wave data, the position of the faulty equipment is determined.
7. gird fault diagnosis method according to claim 1 to 6, which is characterized in that further include:
The incidence relation for determining primary equipment and secondary device in the power grid, based on the incidence relation in the power grid
Primary equipment carries out fault diagnosis.
8. a kind of gird fault diagnosis system characterized by comprising
Data obtaining module, for obtaining the wave-record chart of the fault wave recording device acquisition accessed in power grid after failure occurs, and
The wave-record chart is analyzed, wave-record chart will be stated and matched with the knowledge information in knowledge base；The knowledge information
For information being stored in the knowledge base, corresponding with known fault equipment in power grid；
Faulty equipment determining module, for based on the matched knowledge information of the wave-record chart, determine the event in the power grid
Hinder equipment.
9. a kind of electronic equipment characterized by comprising
At least one processor, at least one processor, communication interface and bus；Wherein,
The processor, memory, communication interface complete mutual communication by the bus；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program instruction,
To execute such as gird fault diagnosis method of any of claims 1-7.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction executes the computer such as power grid event of any of claims 1-7
Hinder diagnostic analysis method.
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| CN110850232A (en) * | 2019-11-13 | 2020-02-28 | 云南电网有限责任公司 | Power grid fault diagnosis system and method based on relay protection auxiliary decision system |
| CN110889602A (en) * | 2019-11-13 | 2020-03-17 | 云南电网有限责任公司 | Relay protection multi-source master station fusion decision rapid support system and method thereof |
| CN110927511A (en) * | 2019-10-18 | 2020-03-27 | 云南电网有限责任公司 | Power grid fault diagnosis system and method using fault waveform |
| CN111008908A (en) * | 2019-11-13 | 2020-04-14 | 广西电网有限责任公司 | Staged fault diagnosis method |
| CN111208385A (en) * | 2019-12-19 | 2020-05-29 | 云南电网有限责任公司玉溪供电局 | Online fault layered diagnosis method for power grid |
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