CN109959842A - A kind of method, apparatus and distribution terminal of fault detection - Google Patents
A kind of method, apparatus and distribution terminal of fault detection Download PDFInfo
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- CN109959842A CN109959842A CN201711429660.1A CN201711429660A CN109959842A CN 109959842 A CN109959842 A CN 109959842A CN 201711429660 A CN201711429660 A CN 201711429660A CN 109959842 A CN109959842 A CN 109959842A
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- simulated failure
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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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- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention is suitable for field of feeder automation, provides a kind of method of fault detection, including obtaining the recorded wave file recorded under preset state；According to the first preset rules and the recorded wave file of acquisition, the voltage pattern and current graph of simulated failure signal are generated；According to the voltage pattern and current graph of the simulated failure signal, calculate the voltage effective value and current effective value of the simulated failure signal, and be compared the voltage effective value of the simulated failure signal with the first preset value, the current effective value of the simulated failure signal is compared with the second preset value；If the voltage effective value of the simulated failure signal is greater than the first preset value, and the current effective value of the simulated failure signal is greater than the second preset value, then generates remote signals, and the remote signals are sent to third party device.The present invention can effectively improve the efficiency of detection, reduce the cost of detection by the Earth Fault Detection function using distribution terminal itself.
Description
Technical field
The present invention relates to FEEDER AUTOMATION field more particularly to a kind of method, apparatus of fault detection, distribution terminal
And computer readable storage medium.
Background technique
In global smart grid industry, distribution network automated importance has leapt to the first.The core function of smart grid
First is that realize using the detection of failure, positioning and isolation and service restoration as the feeder automation of target, the function is to improve
Distribution production and operation management level and promotion power supply reliability are all extremely important.
However, there are following technical problems for existing fault detection method: system needs a very worthy failure same
Tester is walked, testing cost is higher.In addition, needing to remove fault detection system to scene for mounted equipment under test
It could detect, not only consume a large amount of human and material resources, but also detection efficiency is lower.
Summary of the invention
In consideration of it, the embodiment of the present invention provides the method, apparatus and distribution terminal of a kind of fault detection, can not by
Under the premise of external test device, complete detection to ground fault on a plurality of feeder line, improve detection efficiency, reduce detection at
This.
The first aspect of the embodiment of the present invention provides a kind of method of fault detection, is applied to distribution terminal, the side
Method includes:
Obtain the recorded wave file recorded under preset state；
According to the first preset rules and the recorded wave file of acquisition, the voltage pattern and electric current of simulated failure signal are generated
Figure；
According to the voltage pattern and current graph of the simulated failure signal, the voltage effective value of the simulated failure signal is calculated
And current effective value, and the voltage effective value of the simulated failure signal is compared with the first preset value, by the simulation
The current effective value of fault-signal is compared with the second preset value；
If the voltage effective value of the simulated failure signal is greater than the first preset value, and the electric current of the simulated failure signal
Virtual value is greater than the second preset value, then generates remote signals, and the remote signals are sent to third party device, the remote signalling
Signal includes fault-signal.
The second aspect of the embodiment of the present invention provides a kind of device of fault detection, is applied to distribution terminal, the dress
It sets and includes:
Reading unit, for obtaining the recorded wave file recorded under preset state；
Analogue unit generates simulated failure signal for the recorded wave file according to the first preset rules and acquisition
Voltage pattern and current graph；
Image processing unit calculates the simulation event for the voltage pattern and current graph according to the simulated failure signal
Hinder the voltage effective value and current effective value of signal, and by the voltage effective value of the simulated failure signal and the first preset value into
Row compares, and the current effective value of the simulated failure signal is compared with the second preset value；
Communication unit, if the voltage effective value for the simulated failure signal is greater than the first preset value, and the simulation
The current effective value of fault-signal is greater than the second preset value, then generates remote signals, and the remote signals are sent to third
Method, apparatus, the remote signals include fault-signal.
The third aspect of the embodiment of the present invention provides a kind of distribution terminal, comprising: including memory, processor and storage
On a memory and the computer program that can run on a processor, above-mentioned processor are realized when executing above-mentioned computer program
State the fault detection method that first aspect refers to.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, comprising: this is computer-readable
Computer program is stored on storage medium, above-mentioned computer program is realized mentioned in the first aspect when being executed by processor
Fault detection method.
Existing beneficial effect is the embodiment of the present invention compared with prior art: the present embodiment is by obtaining under preset state
The recorded wave file of record, and according to the first preset rules and the recorded wave file of acquisition, generate the electricity of simulated failure signal
Pressure figure and current graph；According to the voltage pattern and current graph of the simulated failure signal, the voltage of the simulated failure signal is calculated
Virtual value and current effective value, and the voltage effective value of the simulated failure signal is compared with the first preset value, by institute
The current effective value for stating simulated failure signal is compared with the second preset value, if the voltage effective value of the simulated failure signal
Greater than the first preset value, and the current effective value of the simulated failure signal is greater than the second preset value, then generates and believe comprising failure
Number remote signals, and the remote signals comprising fault-signal are sent to third party device.The present embodiment can be not
Under the auxiliary for needing external test device, so that it may complete fault detection task, greatly improve the efficiency of detection, and save
Testing cost.In addition, by the way that the remote signals comprising fault-signal are sent to third party device, it can also be automatic to feeder line
The correctness and reasonability for changing logic are verified, and have stronger usability and practicality.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation process schematic diagram for the fault detection method that the embodiment of the present invention one provides；
Fig. 2 is the implementation process schematic diagram of fault detection method provided by Embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram for the fault detection means that the embodiment of the present invention three provides；
Fig. 4 is the schematic diagram for the distribution terminal that the embodiment of the present invention four provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in following methods embodiment, respectively
The execution sequence of process should be determined by its function and internal logic, and the implementation process without coping with each embodiment constitutes any limit
It is fixed.
It should be noted that distribution terminal described in the embodiment of the present invention is mainly the power distribution station in distribution automation system
Terminal, the distribution automation system may include third party device, distribution terminal etc..It is understood that the distribution
Terminal can be one or more distribution terminals on a feeder line, and the one or more distribution being also possible on a plurality of feeder line are whole
End.
In addition, the present embodiment fault detection method/device is preferably applied to detect in type feed line automatization system on the spot
Ground fault and/short trouble, wherein ground fault may include singlephase earth fault, double earthfault or three-phase ground event
Any one in barrier.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment one
Fig. 1 is the implementation process schematic diagram for the fault detection method that the embodiment of the present invention one provides, and this method may include
Following steps:
S101: the recorded wave file recorded under preset state is obtained.
Applicant has found in the course of the research, when ground fault occurring in existing distribution automation system, can all generate
One fault-signal can record the fault-signal in the different location on distribution line by oscillograph.Wherein, described
The file recorded can be recorded wave file described in Comtrade formatted file namely the present embodiment.
Wherein, above-mentioned Comtrade formatted file is ieee standard electrical power system transient data interchange general format.Each
All record has one group of relative file in Comtrade file, and the relevant file includes: heading file, configuration text
Part, data file and message file etc..
Distribution terminal can obtain electric parameter by the data for including in reading Comtrade file, such as: failure hair
The time of the generation of voltage value, current value, performance number, failure when raw and the duration of failure.
In the present embodiment, the recorded wave file in chronological sequence can sequentially carry out wave recording figure.Therefore the default shape
State can be multiple states, it may be assumed that the recorded wave file 1 in a period of time T1, ground fault before being occurred by acquisition ground fault
The recorded wave file 3 in a period of time T2 after recorded wave file 2 and ground fault generation when generation, can be more accurately to mould
The generation parameter of quasi- fault-signal is configured.
S102: according to the first preset rules and the recorded wave file of acquisition, the voltage pattern of simulated failure signal is generated
And current graph.
Optionally, above-mentioned first preset rules include following formula (1) and formula (2):
Wherein, U indicates that the instantaneous voltage value of the simulated failure signal, I indicate the instantaneous electricity of the simulated failure signal
Flow valuve；U indicates that the voltage value obtained according to the recorded wave file, i indicate the current value obtained according to the recorded wave file；W table
Show the angular speed of the simulated failure signal；T is the time；Indicate the first of the instantaneous voltage value for generating simulated failure signal
Beginning phase,Indicate the initial phase for generating the instantaneous current value of simulated failure signal.
S103: according to the voltage pattern and current graph of the simulated failure signal, the voltage of the simulated failure signal is calculated
Virtual value and current effective value, and the voltage effective value of the simulated failure signal is compared with the first preset value, by institute
The current effective value for stating simulated failure signal is compared with the second preset value.
Optionally, the voltage effective value of the simulated failure signal is calculated by following formula (3):
Wherein, U indicates the voltage effective value of the simulated failure signal；UiIndicate the instantaneous electricity of the simulated failure signal
Pressure value can specifically be obtained by the formula (1) in step S102；The number of N expression sampled point.
Furthermore it is possible to which the current effective value of the simulated failure signal is calculated by following formula (4):
Wherein, I indicates the current effective value of the simulated failure signal；IiIndicate the instantaneous electricity of the simulated failure signal
Flow valuve can specifically be obtained by the formula (2) in step S102；The number of N expression sampled point.
Wherein, it in a period of time before occurring due to failure, may be considered just using the waveform that oscillograph is recorded
Ordinary wave shape, therefore by analyzing this waveform diagram, the voltage value and current value extracted can be used as in the present embodiment
The preset value.
Optionally, by calculating in scheduled duration, the difference of the virtual value of the voltage or electric current of the simulated failure signal,
That is the variable quantity is compared by variable quantity with a certain preset range.
S104: if the voltage effective value of the simulated failure signal is greater than the first preset value, and the simulated failure signal
Current effective value be greater than the second preset value, then generate remote signals, and the remote signals are sent to third party device, institute
Stating remote signals includes fault-signal.
In the present embodiment, the remote signals can include but is not limited to lower column signal: the position signal of switch, failure
Signal, equipment operation condition signal etc..When indicating that ground fault occurs on feeder line with high level, low level indicates do not have on feeder line
When ground fault, it is greater than the first preset value, and the simulated failure in the voltage effective value for detecting the simulated failure signal
When the current effective value of signal is greater than the second preset value, the remote signals comprising high level signal are sent to third party device,
At this point, the high level signal indicates fault-signal.
It is understood that for third party device, the remote signals be mainly used for current line state into
Row compares, with the correctness of the determination distribution terminal analysis identification route fault-signal.
Optionally, if the virtual value of the simulated failure signal is greater than preset value, remote signals is generated and pass through communication
Specification is sent to third party device.
Optionally, the third party device includes main website.
Further, above-mentioned communication protocol can be 101 specifications or 104 specifications.It should be noted that 101 rule
About it is mainly used for serial communication；104 specification is mainly used for network communication.
Further, the remote signals comprising fault-signal are being sent to by above-mentioned 101 specification or 104 specifications
While main website, it can also be sent to adjacent distribution terminal simultaneously.
In the embodiment of the present invention, pass through the processing capacity to recorded wave file having using distribution terminal itself, Ke Yi
The voltage pattern and current graph of distribution terminal generation fault simulation signal；Pass through the voltage pattern and electricity according to the simulated failure signal
Flow graph, calculates the voltage effective value and current effective value of the simulated failure signal, and by the voltage of the simulated failure signal
Virtual value is compared with the first preset value, and the current effective value of the simulated failure signal is compared with the second preset value
Compared with if the voltage effective value of the simulated failure signal is greater than the first preset value, and the electric current of the simulated failure signal is effective
Value is greater than the second preset value, then generates remote signals, and the remote signals are sent to third party device, can not need
Under the auxiliary of external test device, so that it may complete to simulate the fault identification task under true ground fault scene, greatly mention
The high efficiency of test, and saved cost；Simultaneously can also correctness to feeder automation logic and reasonability test
Card has stronger usability and practicality.
Embodiment two
Fig. 2 shows a kind of implementation processes of the method for fault detection of second embodiment offer, and details are as follows:
S201: the recorded wave file recorded under preset state is obtained.
Wherein, above-mentioned steps S201 and the step S101 in embodiment one are essentially identical, so here is no more repetition.
S202: being arranged synchronization time, so that the distribution terminal synchronous can generate the mould with other distribution terminals
The voltage pattern and current graph of quasi- fault-signal.
Wherein, other described distribution terminals can be the adjacent distribution terminal of same feeder line, be also possible to other feeder lines
On distribution terminal.
Optionally, pass through the generation of clock control fault-signal.Such as: using distribution terminal itself based on GPS, Beidou
Or the time adjustment function of other time synchronizing device, guarantee that the clock of all tested distribution terminals is synchronous.
S203: according to the first preset rules and the recorded wave file of acquisition, the voltage pattern of simulated failure signal is generated
And current graph.
Wherein, above-mentioned steps S203 and the step S102 in embodiment one are essentially identical, so here is no more repetition.
S204: according to the voltage pattern and current graph of the simulated failure signal, the voltage data and electricity of simulated failure are obtained
Flow data；The voltage data and current data of the simulated failure are stored to Circular buffer area.
It is understood that detection judgement is executed according to preset detection algorithm for the ease of the distribution terminal, it can
The simulated failure signal of the generation to be carried out to the extraction and storage of data.
Optionally, the data in the simulated failure signal of the generation are stored to annular memory block.It needs to illustrate
It is that the Circular buffer area usually has a read pointer and a write pointer.Read pointer is directed toward number readable in buffer circle
According to write pointer is directed toward buffer area writeable in buffer circle.It can be right by mobile read pointer and write pointer in the present embodiment
Simulated failure data in buffer area are read and writen, and can be more nearly the processing habit that people in scene occur for failure
It is used, it may be assumed that first to carry out the write-in storage of fault data, the rear reading judgement for carrying out fault data.
S205: according to the voltage pattern and current graph of the simulated failure signal, the voltage of the simulated failure signal is calculated
Virtual value and current effective value, and the voltage effective value of the simulated failure signal is compared with the first preset value, by institute
The current effective value for stating simulated failure signal is compared with the second preset value.
S206: if the voltage effective value of the simulated failure signal is greater than the first preset value, and the simulated failure signal
Current effective value be greater than the second preset value, then generate remote signals, and the remote signals are sent to third party device, institute
Stating remote signals includes fault-signal.
Wherein, above-mentioned steps S205-S206 and the step S103-S104 in embodiment one are essentially identical, do not make weight herein
It repeats again.
In the embodiment of the present invention, by the time adjustment function having using distribution terminal itself so that the distribution terminal with
Other distribution terminals can synchronize the voltage pattern and current graph for generating the simulated failure signal, ensure that it is in closer failure
It completes to synchronize detection to the ground fault on a plurality of feeder line under live real scene, greatly improves the efficiency of detection；In addition,
By the voltage pattern and current graph according to the simulated failure signal, the voltage data and current data of simulated failure are obtained, and
The voltage data and current data of the simulated failure are stored to Circular buffer area, fault in-situ people docking is more in line with
The processing mode of earth fault has stronger usability and practicality.
Embodiment three
Fig. 3 be the embodiment of the present invention three provide fault detection schematic device, for ease of description, illustrate only with
The relevant part of the embodiment of the present invention.
The device of the fault detection, comprising:
Reading unit 31, for obtaining the recorded wave file recorded under preset state；
Analogue unit 32 generates simulated failure letter for the recorded wave file according to the first preset rules and acquisition
Number voltage pattern and current graph；
Image processing unit 33 calculates the simulation for the voltage pattern and current graph according to the simulated failure signal
The voltage effective value and current effective value of fault-signal, and by the voltage effective value and the first preset value of the simulated failure signal
It is compared, the current effective value of the simulated failure signal is compared with the second preset value；
Communication unit 34, if the voltage effective value for the simulated failure signal is greater than the first preset value, and the mould
The current effective value of quasi- fault-signal is greater than the second preset value, then generates remote signals, and the remote signals are sent to the
Three method, apparatus, the remote signals include fault-signal.
Further, the communication unit 34 may include wireless communication unit and Landline communication unit, to support a variety of lead to
News mode；
Wherein, the wireless communication unit may include 3G communication subelement, 4G communication subelement, WIFI communication subelement,
Bluetooth communication subelement and radio communication subelement；
Wherein, the Landline communication unit may include USB interface communication subelement, serial communication subelement, Parallel Interface Communication
Subelement and/or bus communication subelement.
Optionally, described device further include:
Clock Managing Unit, for synchronization time to be arranged, so that the distribution terminal can be same with other distribution terminals
Step generates the voltage pattern and current graph of the simulated failure signal.
Further, described device further include:
Sampling unit obtains simulated failure for the voltage pattern and current graph according to the simulated failure signal respectively
Voltage data and current data；
Circular buffer area, for storing the voltage data and current data of the simulated failure.
Example IV
Fig. 4 is the schematic diagram for the distribution terminal that the present embodiment four provides.As shown in figure 4, the distribution terminal 4 of the embodiment wraps
It includes: processor 40, memory 41 and being stored in the computer that can be run in the memory 41 and on the processor 40
Program 42, realizes the step in above-mentioned fault detection method embodiment one, for example, step S101 to S104 shown in FIG. 1 or on
State the step in fault detection method embodiment two, such as step S201 to S206 shown in Fig. 2.The processor 40 executes institute
The function of each module/unit in above-mentioned each Installation practice, such as module 31 to 34 shown in Fig. 3 are realized when stating computer program 42
Function.
Illustratively, the computer program 42 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 41, and are executed by the processor 40, to complete the present invention.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 42 in the distribution terminal 4 is described.For example, the computer program 42 can be divided
It is cut into reading unit, analogue unit, image processing unit, communication unit, each unit concrete function is as follows:
Reading unit, for obtaining the recorded wave file recorded under preset state；
Analogue unit generates simulated failure signal for the recorded wave file according to the first preset rules and acquisition
Voltage pattern and current graph；
Image processing unit calculates the simulation event for the voltage pattern and current graph according to the simulated failure signal
Hinder the voltage effective value and current effective value of signal, and by the voltage effective value of the simulated failure signal and the first preset value into
Row compares, and the current effective value of the simulated failure signal is compared with the second preset value；
Communication unit, if the voltage effective value for the simulated failure signal is greater than the first preset value, and the simulation
The current effective value of fault-signal is greater than the second preset value, then generates remote signals, and the remote signals are sent to third
Method, apparatus, the remote signals include fault-signal.
The distribution terminal 4 may include, but be not limited only to, processor 40, memory 41.Those skilled in the art can manage
Solution, Fig. 4 is only the example of distribution terminal 4, does not constitute the restriction to distribution terminal 4, may include more or more than illustrating
Few component perhaps combines certain components or different components, such as the distribution terminal can also be set including input and output
Standby, network access equipment, bus etc..
The processor 40 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 41 can be the internal storage unit of the distribution terminal 4, such as the hard disk or interior of distribution terminal 4
It deposits.The memory 41 is also possible to the External memory equipment of the distribution terminal 4, such as be equipped on the distribution terminal 4
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 41 can also both include the storage inside list of the distribution terminal 4
Member also includes External memory equipment.The memory 41 is for storing needed for the computer program and the distribution terminal
Other programs and data.The memory 41 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that each embodiment described in conjunction with the examples disclosed in this document
Module, unit and/or method and step can be realized with the combination of electronic hardware or computer software and electronic hardware.This
A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-described embodiment side
All or part of the process in method can also instruct relevant hardware to complete, the computer by computer program
Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each
The step of a embodiment of the method.Wherein, the computer program includes computer program code, the computer program code
It can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium can
With include: can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk,
CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random
Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer
The content that readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as
It does not include electric carrier signal and telecommunication signal according to legislation and patent practice, computer-readable medium in certain jurisdictions.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of method of fault detection, which is characterized in that be applied to distribution terminal, which comprises
Obtain the recorded wave file recorded under preset state；
According to the first preset rules and the recorded wave file of acquisition, the voltage pattern and current graph of simulated failure signal are generated；
According to the voltage pattern and current graph of the simulated failure signal, the voltage effective value and electricity of the simulated failure signal are calculated
Virtual value is flowed, and the voltage effective value of the simulated failure signal is compared with the first preset value, by the simulated failure
The current effective value of signal is compared with the second preset value；
If the voltage effective value of the simulated failure signal is greater than the first preset value, and the electric current of the simulated failure signal is effective
Value is greater than the second preset value, then generates remote signals, and the remote signals are sent to third party device, the remote signals
Include fault-signal.
2. the method according to claim 1, wherein in the recording according to the first preset rules and acquisition
File, generate simulated failure signal voltage pattern and current graph before, further includes:
Synchronization time is set, so that the distribution terminal synchronous can generate the simulated failure signal with other distribution terminals
Voltage pattern and current graph.
3. the method according to claim 1, wherein in the recording according to the first preset rules and acquisition
File, generate simulated failure signal voltage pattern and current graph after, further includes:
According to the voltage pattern and current graph of the simulated failure signal, the voltage data and current data of simulated failure are obtained；
The voltage data and current data of the simulated failure are stored to Circular buffer area.
4. according to the method in any one of claims 1 to 3, it is characterised in that first preset rules include:
Wherein, U indicates that the instantaneous voltage value of the simulated failure signal, I indicate the instantaneous current value of the simulated failure signal；
U indicates that the voltage value obtained according to the recorded wave file, i indicate the current value obtained according to the recorded wave file；Described in w expression
The angular speed of simulated failure signal；T is the time；Indicate the initial phase for generating the instantaneous voltage value of simulated failure signal
Position,Indicate the initial phase for generating the instantaneous current value of simulated failure signal.
5. if according to the method described in claim 4, it is characterized in that the voltage effective value of the simulated failure signal is big
In the first preset value, and the current effective value of the simulated failure signal is greater than the second preset value, then generates remote signals, and will
The remote signals are sent to third party device, and the remote signals include fault-signal, comprising:
If the voltage effective value of the simulated failure signal is greater than the first preset value, and the electric current of the simulated failure signal is effective
Value is greater than the second preset value, then generates remote signals, and be sent to the remote signals by 101 specifications or 104 specifications
Third party device, the remote signals include fault-signal.
6. a kind of device of fault detection, which is characterized in that be applied to distribution terminal, described device includes:
Reading unit, for obtaining the recorded wave file recorded under preset state；
Analogue unit generates the electricity of simulated failure signal for the recorded wave file according to the first preset rules and acquisition
Pressure figure and current graph；
Image processing unit calculates the simulated failure letter for the voltage pattern and current graph according to the simulated failure signal
Number voltage effective value and current effective value, and the voltage effective value of the simulated failure signal is compared with the first preset value
Compared with the current effective value of the simulated failure signal is compared with the second preset value；
Communication unit, if the voltage effective value for the simulated failure signal is greater than the first preset value, and the simulated failure
The current effective value of signal is greater than the second preset value, then generates remote signals, and the remote signals are sent to third party and are set
Standby, the remote signals include fault-signal.
7. device according to claim 6, which is characterized in that described device further include:
Clock Managing Unit, for synchronization time to be arranged, so that the distribution terminal can synchronous life with other distribution terminals
At the voltage pattern and current graph of the simulated failure signal.
8. device according to claim 6, which is characterized in that described device further include:
Sampling unit obtains the voltage of simulated failure for the voltage pattern and current graph according to the simulated failure signal respectively
Data and current data；
Circular buffer area, for storing the voltage data and current data of the simulated failure.
9. a kind of distribution terminal, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 5 when executing the computer program
Any one of described in fault detection method the step of.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In the step of realization fault detection method as described in any one of claims 1 to 5 when the computer program is executed by processor
Suddenly.
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