CN110261727A - A kind of fault detector and its working method - Google Patents
A kind of fault detector and its working method Download PDFInfo
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- CN110261727A CN110261727A CN201910386114.7A CN201910386114A CN110261727A CN 110261727 A CN110261727 A CN 110261727A CN 201910386114 A CN201910386114 A CN 201910386114A CN 110261727 A CN110261727 A CN 110261727A
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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
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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Abstract
This application provides a kind of fault detector and its working methods, comprising: micro-control module, remote-wireless electricity module, multi-power module, ground fault detection module and alarm module；Micro-control module is communicated to connect with remote-wireless electricity module, ground fault detection module and alarm module respectively；Multi-power module and micro-control module and remote-wireless electricity module wired connection；Ground fault detection module, for acquiring the magnitude of current of faulty line and load resistance, and Signal separator is carried out by the magnitude of current of the signal separation unit to faulty line and load resistance, obtain quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance switching signal；Micro-control module, quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance switching signal for transmitting to ground fault monitoring modular compare and analyze, to judge whether ground fault occurs, if judging ground fault, micro-control module generates ground fault information and fault-signal.
Description
Technical field
This application involves power line failure detection fields, in particular to a kind of fault detector and its working method.
Background technique
Currently, smart grid is in the state of high speed development, consequent is the fault detector to power line
Demand is also higher and higher, is detected using line fault of the fault detector to power line, the line to power line may be implemented
Road failure carries out Rapid Alarm and positioning, and maintenance personal is helped to be quickly found out fault zone, maintenance process, reduce power off time and
Range.Therefore, accurate, the steady running of fault detector are the evaluation indexes important for fault detector.
In the prior art, fault detector is presently mainly and passes through lithium battery to provide energy for indicating fault, due to failure
Indicator needs to work on the line for a long time, and lithium battery runing time is shorter, is insufficient for fault detector
Demand produces serious influence to equipment operation duration；Also, importantly, being in the prior art logical for fault detection
Current break and the duration for crossing electromagnetic induction route are short, and acquisition points are few, and judge that the variable of failure is single, therefore make
It is not high at malfunction monitoring sensitivity, fault detector malfunction or tripping frequent occurrence.
Summary of the invention
In view of this, the application's is designed to provide a kind of fault detector and its working method, it is existing for solving
Fault detector cruising ability difference and the low problem of fault detection accuracy in technology.Using multi-power module, event is improved
Hinder the cruising ability of indicator, and used transient state harmonic data algorithm, improves the precision of fault detection.
In a first aspect, the embodiment of the present application provides a kind of fault detector, which includes: micro-control module, long distance
From radio module, multi-power module, ground fault detection module and alarm module；The micro-control module respectively with it is described remote
It is communicated to connect apart from radio module, ground fault detection module and alarm module；The multi-power module respectively with it is described micro-
Control module and remote-wireless electricity module wired connection；
The ground fault detection module for acquiring the magnitude of current of faulty line and load resistance, and passes through signal point
Signal separator is carried out from the magnitude of current of the unit to the faulty line and load resistance, obtains quintuple harmonics head half-wave signa, base
Wave head half-wave signa and load resistance switching signal；By the quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load
Resistance switching signal is transferred to the micro-control module；
The micro-control module, for the quintuple harmonics head half-wave letter to the ground fault detection module transfer
Number, fundamental wave head half-wave signa and load resistance switching signal compare and analyze, to judge whether ground fault occurs, if judgement
Ground fault occurs, and the micro-control module generates ground fault information and fault-signal；
The remote-wireless electricity module, it is corresponding for the ground fault information to be sent to the micro-control module
Host computer；
The alarm module is alarmed for receiving the fault-signal, and accordingly.
According in a first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, wherein institute
State multi-power module, including induction power supply module, lithium Asia power module, wind power source module and electric quantity monitoring module；
The induction power supply module, for obtaining mutual inducing current by current transformer；The mutual inducing current is successively passed through
After over commutation filter protective circuit and direct-current voltage reducing circuit are rectified and be depressured, it is input in accumulator；Pass through the storage
Energy circuit charges to chargeable super capacitor, and is supplied by the chargeable super capacitor via linear voltage-stabilizing circuit
Electricity；The accumulator also charges to the lithium Asia battery in the power module of the lithium Asia；
Lithium Asia power module, for being powered by lithium Asia battery via linear voltage-stabilizing circuit；
The wind power source module for being generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface；
The electric quantity monitoring module is used for by under-voltage without pressure detection circuit to the induction power supply module, lithium Asia battery
Module and the electric current of wind power source module output carry out voltage monitoring.
According in a first aspect, the embodiment of the present application provides second of possible embodiment of first aspect, wherein also
It include: short trouble monitoring modular and 4G communication module；
The short trouble monitoring modular, for obtaining electric current pick-up signal by Current Mutual Inductance；To the electric current pick-up
After signal is filtered, carries out I/V and convert to obtain differential voltage signal；The differential voltage signal is subjected to A/D conversion, is obtained
The corresponding digital signal of the differential voltage signal, and it is transferred to the micro-control module；
The micro-control module is also used to calculate the digital signal, obtains load current；If the load electricity
Stream exceeds preset threshold, and the micro-control module determines that short trouble occurs, and generates short trouble information；
It is corresponding to be also used to for the short trouble information being sent to the micro-control module for the remote-wireless electricity module
Host computer；
The 4G communication module, for the short trouble information to be sent to client.
According in a first aspect, the embodiment of the present application provides the third possible embodiment of first aspect, wherein also
It include: double-frequency GPS module；
The double-frequency GPS module, for using double-frequency GPS locating bad lines location information, and by the faulty line
Location information is transferred to the micro-control module.
Second aspect, the embodiment of the present application provide a kind of working method of fault detector, the fault detector packet
Include micro-control module, remote-wireless electricity module, multi-power module, ground fault detection module and alarm module；The micro-control
Molding block is communicated to connect with the remote-wireless electricity module, ground fault detection module and alarm module respectively；It is described mostly electric
Source module respectively with the micro-control module and remote-wireless electricity module wired connection；The working method includes:
The magnitude of current of the acquisition of ground fault detection the module faulty line and load resistance, and pass through signal separation unit
Signal separator is carried out to the magnitude of current of the faulty line and load resistance, obtains quintuple harmonics head half-wave signa, fundamental wave first half
Wave signal and load resistance switching signal；
The micro-control module believes the quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance switching
It number compares and analyzes, to judge whether ground fault occurs；
If judging ground fault, the micro-control module generates ground fault information and fault-signal；
The ground fault information is sent to described micro- by the micro-control module by the remote-wireless electricity module
The corresponding host computer of control module, and the fault-signal is sent to alarm module, to be alarmed accordingly.
According to second aspect, the embodiment of the present application provides the first possible embodiment of second aspect, wherein institute
Stating multi-power module includes induction power supply module, lithium Asia power module and electric quantity monitoring module；The electric quantity monitoring module passes through
Under-voltage to carry out voltage detecting to the induction power supply module and lithium Asia battery module without pressure detection circuit, which includes:
The induction power supply module obtains mutual inducing current by current transformer；
By the mutual inducing current successively after rectifying and wave-filtering protects circuit and direct-current voltage reducing circuit to be rectified and be depressured,
It is input in accumulator；
The accumulator is that chargeable super capacitor charges, and passes through the chargeable super capacitor via linear
Voltage regulator circuit is powered；
The accumulator also charges to the lithium Asia battery in the power module of the lithium Asia, lithium Asia battery via
Linear voltage-stabilizing circuit is powered.
According to the first possible embodiment of second aspect, the embodiment of the present application provides second of second aspect
Possible embodiment, wherein the multi-power module further includes wind power source module；The electric quantity monitoring module passes through under-voltage
Voltage detecting is carried out to the wind power source module without pressure detection circuit, which includes:
The wind power source module is generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface.
According to second aspect, the embodiment of the present application provides the third possible embodiment of second aspect, wherein institute
Stating fault detector further includes short trouble monitoring modular and 4G communication module；The working method includes:
The short trouble monitoring modular obtains electric current pick-up signal by Verification of Measuring Current Transformer, and by the electric current
Pick-up signal is input in phase current sensing circuit；
After the electric current pick-up signal is filtered by the filter capacitor in the phase current sensing circuit, I/V is carried out
Transformation obtains differential voltage signal；
The differential voltage signal is converted to digital signal via A/D converter, and is transferred to the micro-control module；
The micro-control module calculates the digital signal, obtains load current；
If load current exceeds preset threshold, the micro-control module determines that short trouble occurs, and generates corresponding short
Road fault message；
The short trouble information is sent to the microcontroller by remote-wireless electricity module by the micro-control module
The corresponding host computer of module, and the short trouble information is sent to client by 4G communication module.
The third aspect, the embodiment of the present application provide a kind of computer equipment and include memory, processor and be stored in institute
The computer program that can be run on memory and on the processor is stated, the processor executes real when the computer program
The step of method described in existing any one of above-mentioned second aspect and its possible embodiment.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, the computer-readable storage
It is stored with computer program on medium, the computer program executes above-mentioned second aspect and its possible when being run by processor
The step of method described in any one of embodiment.
A kind of fault detector and its working method that the embodiment of the present application proposes, are collected by way of transient state recording
Faulty line data and the faulty line data are analyzed by microprocessor, to judge the generation of line fault, and
The technologies such as multiple feed, double-frequency GPS, remote-wireless electricity have been used to promote the performance of fault detector.The application is implemented
The fault detector that example is proposed has the advantages that high detection precision, length in cruise duration, accurate positioning.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram of fault detector provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of another fault detector provided by the embodiments of the present application；
Fig. 3 is a kind of flow diagram of the working method of fault detector provided by the embodiments of the present application；
Fig. 4 is the flow diagram of the working method of another fault detector provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of computer equipment provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
The embodiment of the present application provides a kind of fault detector, as shown in Figure 1, comprising: micro-control module 11, remote nothing
Line electricity module 12, multi-power module 13, ground fault detection module 14 and alarm module 15；Micro-control module 11 respectively with long distance
It is communicated to connect from radio module 12, ground fault detection module 14 and alarm module 15；Multi-power module 13 respectively with micro-control
12 wired connection of molding block 11 and remote-wireless electricity module；
Ground fault detection module 14 for acquiring the magnitude of current of faulty line and load resistance, and passes through Signal separator
Unit carries out Signal separator to the magnitude of current of above-mentioned faulty line and load resistance, obtains quintuple harmonics head half-wave signa, fundamental wave
First half-wave signa and load resistance switching signal；By above-mentioned quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load electricity
Resistance switching signal is transferred to above-mentioned micro-control module.
If occurring single-phase earthing in power line, the protective device of substation can control resistance switching device in network system
Load resistance is cut and disconnects repeatedly, resistance switching device carries out the incision repeatedly and disconnection of load resistance according to certain frequency,
The detection of ground fault is utilized this mechanism of network system in above-mentioned fault detector, to detect the hair of ground fault
It is raw.
Specifically, ground fault detection module includes sampling unit and signal separation unit, wherein includes in sampling unit
There is zero sequence current mutual inductor.
When in above-mentioned fault detector access faulty line, the acquisition unit of ground fault detection module collects failure
The magnitude of current of route and load resistance, then by signal separation unit by the electric current of faulty line quintuple harmonics signal and
It exchanges fundamental signal and carries out positive and negative half-wave separation, obtain quintuple harmonics head half-wave signa and fundamental wave head half-wave signa, and will load
The magnitude of current of resistance is separated, and load resistance switching signal is obtained.
Then, ground fault detection module is electric by above-mentioned quintuple harmonics head half-wave signa, fundamental wave head half-wave signa, load
It hinders switching signal and is sent to micro-control module with fundamental signal is exchanged.
Micro-control module 11, for above-mentioned ground fault detection module transfer above-mentioned quintuple harmonics head half-wave signa,
Fundamental wave head half-wave signa and load resistance switching signal compare and analyze, to judge whether ground fault occurs, if judgement connects
Earth fault occurs, and above-mentioned micro-control module generates ground fault information and fault-signal.
Micro-control module is receiving quintuple harmonics head half-wave signa, the fundamental wave head that above-mentioned ground fault detection module is sent
Half-wave signa, load resistance switching signal with exchange fundamental signal after, by positive and negative half wavelength-division in quintuple harmonics head half-wave signa
It is not compared with the positive and negative half-wave in fundamental wave head half-wave signa, meanwhile, the waveform for exchanging fundamental signal and load resistance are thrown
The waveform for cutting signal compares, and the generation of ground fault is judged by above two comparative analyses.
If micro-control module after comparative analysis, confirm the positive and negative half-wave in above-mentioned quintuple harmonics head half-wave signa respectively with
The same phase of positive and negative half-wave in fundamental wave head half-wave signa, and the wave of the waveform of above-mentioned exchange fundamental signal and load resistance switching signal
When both shapes waveform is consistent, then, micro-control module determines singlephase earth fault, and generates ground fault information and failure
Signal.
It wherein, include ground fault relevant information in ground fault information, for example, all kinds of electric currents of above-mentioned judgement are believed
Number, the section of faulty line etc., the application not limits this.
Remote-wireless electricity module 12, it is corresponding for above-mentioned ground fault information to be sent to above-mentioned micro-control module
Position machine.
One fault detection system is generally made of three parts, collection terminal (fault detector), collect end (concentrator) and
Main website.Collection terminal acquisition data simultaneously obtain fault message by calculating and analysis, are then sent to and collect end progress fault message
Summarize, then be uniformly sent to main website.
Remote-wireless electricity module is called wireless LoRa module, is a kind of low-power consumption and the remote radio of propagation distance.It is micro-
Ground fault information is sent to concentrator by the remote-wireless electricity by control module.
Alarm module 15 is alarmed for receiving above-mentioned fault-signal, and accordingly.
Above-mentioned fault-signal is transferred to alarm module by micro-control module, alarm module after receiving the fault-signal,
Carry out corresponding audible alarm and/or light warning.
In an optional embodiment, multi-power module 13, including induction power supply module 131, lithium Asia power module 132,
Wind power source module 133 and electric quantity monitoring module 134；
Induction power supply module 131, for obtaining mutual inducing current by current transformer；Above-mentioned mutual inducing current is successively passed through
After rectifying and wave-filtering protection circuit and direct-current voltage reducing circuit are rectified and be depressured, it is input in accumulator；Pass through above-mentioned energy storage
Circuit charges to chargeable super capacitor, and is supplied by above-mentioned chargeable super capacitor via linear voltage-stabilizing circuit
Electricity；Above-mentioned accumulator also charges to the lithium Asia battery in the power module of above-mentioned lithium Asia.
In induction power supply module include current transformer, rectifying and wave-filtering protection circuit, direct-current voltage reducing circuit, accumulator,
Linear voltage-stabilizing circuit.
Current transformer obtains mutual inducing current by Current Mutual Inductance, however mutually the waveform of inducing current is unstable and voltage compared with
Greatly, it needs by being just able to satisfy requirement after whole wave and decompression, so protecting circuit and DC decompression by rectifying and wave-filtering
Circuit obtains stable electric current.Again by the current transmission into accumulator, accumulator is that chargeable super capacitor is filled
Electricity, super capacitor electric discharge output electric current are conveyed to the module of the needs such as micro-control module power supply by linear voltage-stabilizing circuit.
Meanwhile one part of current is also conveyed to lithium Asia power module by accumulator, is charged for lithium Asia battery.
Lithium Asia power module 132, for being powered by lithium Asia battery via linear voltage-stabilizing circuit.
Lithium Asia battery is a kind of relatively common lithium battery, needs to power to micro-control module etc. by linear voltage-stabilizing circuit
Module for power supply.
Wind power source module 133 for being generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface.
Wind-powered electricity generation power generator is connected with micro-control module by wind energy battery interface to supply by wind power source module
Electricity.
Electric quantity monitoring module 134 is used for by under-voltage without pressure detection circuit to above-mentioned induction power supply module, lithium Asia battery mould
Block and the electric current of wind power source module output carry out voltage monitoring.
Power supply in order to guarantee fault detector is normal, and each power module and micro treatment module etc. need in multi-power module
The under-voltage of electric current and the detection without pressure are powered by electric quantity monitoring module before the connection of the module to be powered.
In an optional embodiment, above-mentioned fault detector further include: short trouble monitoring modular 16 and 4G communicate mould
Block 17；
Short trouble monitoring modular 16, for obtaining electric current pick-up signal by Current Mutual Inductance；Above-mentioned electric current pick-up is believed
After number being filtered, carries out I/V and convert to obtain differential voltage signal；Above-mentioned differential voltage signal is subjected to A/D conversion, is obtained
The corresponding digital signal of differential voltage signal is stated, and is transferred to above-mentioned micro-control module.
Short trouble monitoring modular includes Verification of Measuring Current Transformer, phase current sensing circuit, wherein phase current sensing electricity
It include filter capacitor, two electrostatic lightning strike protection pipes, I/V translation circuit and difference type A/D converter, two electrostatic lightning strokes in road
It is in parallel with filter capacitor after protection pipe docking.
When carrying out short trouble monitoring, the connector of Verification of Measuring Current Transformer is accessed in route to be detected, electricity is obtained
The rheology number of delivering letters will be filtered in filter capacitor that the electric current pick-up signal is input under electrostatic lightning strike protection protection of pipe, filter
Electric current pick-up signal after wave passes through I/V translation circuit again and obtains differential voltage signal, which passes through difference again
Type A/D converter is converted to the available digital signal of micro treatment module.
Then, which is sent to micro-control module by short trouble monitoring modular.
Micro-control module 11 is also used to calculate above-mentioned digital signal, obtains load current；If above-mentioned load current
Beyond preset threshold, above-mentioned micro-control module determines that short trouble occurs, and generates short trouble information.
Micro-control module after receiving the digital signal that above-mentioned short trouble monitoring modular is sent, to the digital signal into
Row analytical calculation obtains the load current of the currently monitored route of above-mentioned short trouble monitoring modular, if the load current exceeds
Preset threshold, then micro-control module judges that short trouble has occurred in the currently monitored route of above-mentioned short trouble monitoring modular, and
Generate short trouble information.Wherein, maximum load current when being worked normally when preset threshold according to power line confirms.
Remote-wireless electricity module 12 is also used to above-mentioned short trouble information being sent to above-mentioned micro-control module corresponding
Host computer.
Short trouble information is sent to concentrator by the remote-wireless electricity by micro-control module.
4G communication module 17, for above-mentioned short trouble information to be sent to client.
Micro-control module is also immediately sent out short trouble information by 4G communication module after determining that short trouble has occurred
The client of maintenance personal is given, to guarantee that maintenance personal can make at the first time counter-measure.In short trouble information
Definite information comprising faulty line and the related data detected.
In an optional embodiment, above-mentioned fault detector further include: double-frequency GPS module 18；
Double-frequency GPS module 18, for using double-frequency GPS locating bad lines location information, and by above-mentioned faulty line position
Confidence breath is transferred to above-mentioned micro-control module.
By double-frequency GPS, the position of faulty line can be locked more accurately, so that maintenance personal can be quickly found out
Faulty line repairs, and guarantees the safety and stabilization of power line.
In an optional embodiment, above-mentioned fault detector can also include clock module 19, SSD memory module 20,
Temperature management module 21.
As shown in Fig. 2, being the overall construction drawing of above-mentioned fault detector and its alternative embodiment.
The embodiment of the present application also provides a kind of working method of fault detector, fault detector includes micro-control molding
Block, remote-wireless electricity module, multi-power module, ground fault detection module and alarm module；Above-mentioned micro-control module difference
It is communicated to connect with above-mentioned remote-wireless electricity module, ground fault detection module and alarm module；Above-mentioned multi-power module difference
With above-mentioned micro-control module and remote-wireless electricity module wired connection；As shown in figure 3, the working method includes the following steps
S301-S304:
The magnitude of current of S301, above-mentioned ground fault detection module acquisition faulty line and load resistance, and pass through signal point
Signal separator is carried out from the magnitude of current of the unit to above-mentioned faulty line and load resistance, obtains quintuple harmonics head half-wave signa, base
Wave head half-wave signa and load resistance switching signal.
Ground fault detection module includes sampling unit and signal separation unit, wherein includes zero sequence electricity in sampling unit
Current transformer.
When in above-mentioned fault detector access faulty line, the acquisition unit of ground fault detection module collects failure
The magnitude of current of route and load resistance, then by signal separation unit by the electric current of faulty line quintuple harmonics signal and
It exchanges fundamental signal and carries out positive and negative half-wave separation, obtain quintuple harmonics head half-wave signa and fundamental wave head half-wave signa, and will load
The magnitude of current of resistance is separated, and load resistance switching signal is obtained.
S302, above-mentioned micro-control module are to above-mentioned quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance
Switching signal compares and analyzes, to judge whether ground fault occurs.
Micro-control module is receiving quintuple harmonics head half-wave signa, the fundamental wave head that above-mentioned ground fault detection module is sent
Half-wave signa, load resistance switching signal with exchange fundamental signal after, by positive and negative half wavelength-division in quintuple harmonics head half-wave signa
It is not compared with the positive and negative half-wave in fundamental wave head half-wave signa, meanwhile, the waveform for exchanging fundamental signal and load resistance are thrown
The waveform for cutting signal compares, and the generation of ground fault is judged by above two comparative analyses.
If S303, judging that ground fault, above-mentioned micro-control module generate ground fault information and fault-signal.
If micro-control module after comparative analysis, confirm the positive and negative half-wave in above-mentioned quintuple harmonics head half-wave signa respectively with
The same phase of positive and negative half-wave in fundamental wave head half-wave signa, and the wave of the waveform of above-mentioned exchange fundamental signal and load resistance switching signal
When both shapes waveform is consistent, then, micro-control module determines singlephase earth fault, and generates ground fault information and failure
Signal.
Above-mentioned ground fault information is sent to by S304, above-mentioned micro-control module by above-mentioned remote-wireless electricity module
The corresponding host computer of micro-control module is stated, and above-mentioned fault-signal is sent to alarm module, to be alarmed accordingly.
One fault detection system is generally made of three parts, collection terminal (fault detector), collect end (concentrator) and
Main website.Collection terminal acquisition data simultaneously obtain fault message by calculating and analysis, are then sent to and collect end progress fault message
Summarize, then be uniformly sent to main website.
Remote-wireless electricity module is called wireless LoRa module, is a kind of low-power consumption and the remote radio of propagation distance.It is micro-
Ground fault information is sent to concentrator by the remote-wireless electricity by control module.
Meanwhile above-mentioned fault-signal is transferred to alarm module by micro-control module, alarm module is receiving failure letter
After number, corresponding audible alarm and/or light warning are carried out.
In an optional embodiment, above-mentioned multi-power module includes induction power supply module, lithium Asia power module and electricity
Monitoring modular；Above-mentioned electric quantity monitoring module by it is under-voltage without pressure detection circuit to above-mentioned induction power supply module and lithium Asia battery module
Voltage detecting is carried out, which includes:
3001, above-mentioned induction power supply module obtains mutual inducing current by current transformer.
3002, above-mentioned mutual inducing current is successively passed through rectifying and wave-filtering protects circuit and direct-current voltage reducing circuit to be rectified and dropped
After pressure, it is input in accumulator.
3003, above-mentioned accumulator is that chargeable super capacitor charges, and passes through above-mentioned chargeable super capacitor warp
It is powered by linear voltage-stabilizing circuit.
3004, above-mentioned accumulator also charges to the lithium Asia battery in the power module of above-mentioned lithium Asia, the sub- electricity of above-mentioned lithium
Pond is powered via linear voltage-stabilizing circuit.
Current transformer obtains mutual inducing current by Current Mutual Inductance, however mutually the waveform of inducing current is unstable and voltage compared with
Greatly, it needs by being just able to satisfy requirement after whole wave and decompression, so protecting circuit and DC decompression by rectifying and wave-filtering
Circuit obtains stable electric current.Again by the current transmission into accumulator, accumulator is that chargeable super capacitor is filled
Electricity, super capacitor electric discharge output electric current are conveyed to the module of the needs such as micro-control module power supply by linear voltage-stabilizing circuit.
Meanwhile one part of current is also conveyed to lithium Asia power module by accumulator, is charged for lithium Asia battery.
Power supply in order to guarantee fault detector is normal, and each power module and micro treatment module etc. need in multi-power module
The under-voltage of electric current and the detection without pressure are powered by electric quantity monitoring module before the connection of the module to be powered.
In an optional embodiment, above-mentioned multi-power module further includes wind power source module；Above-mentioned electric quantity monitoring module
Voltage detecting is carried out to above-mentioned wind power source module without pressure detection circuit by under-voltage, which includes:
3005, above-mentioned wind power source module is generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface.
Wind-powered electricity generation power generator is connected with micro-control module by wind energy battery interface to supply by wind power source module
Electricity.
In an optional embodiment, above-mentioned fault detector further includes short trouble monitoring modular and 4G communication module；
As shown in figure 4, the working method includes the following steps S305-S310:
S305, above-mentioned short trouble monitoring modular obtain electric current pick-up signal by Verification of Measuring Current Transformer, and will be upper
Electric current pick-up signal is stated to be input in phase current sensing circuit.
When carrying out short trouble monitoring, the connector of Verification of Measuring Current Transformer is accessed in route to be detected, electricity is obtained
The rheology number of delivering letters.
After S306, above-mentioned electric current pick-up signal are filtered by the filter capacitor in above-mentioned phase current sensing circuit, into
Row I/V converts to obtain differential voltage signal.
It will be filtered, filter in filter capacitor that above-mentioned electric current pick-up signal is input under electrostatic lightning strike protection protection of pipe
Electric current pick-up signal afterwards passes through I/V translation circuit again and obtains differential voltage signal.
S307, above-mentioned differential voltage signal are converted to digital signal via A/D converter, and are transferred to above-mentioned micro-control molding
Block.
Differential voltage signal is passed through to difference type A/D converter again and is converted to the available digital signal of micro treatment module.
Then, which is sent to micro-control module by short trouble monitoring modular.
S308, above-mentioned micro-control module calculate above-mentioned digital signal, obtain load current.
Micro-control module after receiving the digital signal that above-mentioned short trouble monitoring modular is sent, to the digital signal into
Row analytical calculation obtains the load current of the currently monitored route of above-mentioned short trouble monitoring modular.
If S309, load current exceed preset threshold, above-mentioned micro-control module determines that short trouble occurs, and generates correspondence
Short trouble information.
Above-mentioned load current is compared with preset threshold, if the load current exceeds preset threshold, micro-control molding
Block judges that short trouble has occurred in the currently monitored route of above-mentioned short trouble monitoring modular, and generates short trouble information.Its
In, maximum load current when preset threshold works normally according to power line confirms.
Above-mentioned short trouble information is sent to above-mentioned micro- by S310, above-mentioned micro-control module by remote-wireless electricity module
The corresponding host computer of control module, and above-mentioned short trouble information is sent to client by 4G communication module.
Short trouble information is sent to concentrator by the remote-wireless electricity by micro-control module.
Micro-control module is also immediately sent out short trouble information by 4G communication module after determining that short trouble has occurred
The client of maintenance personal is given, to guarantee that maintenance personal can make at the first time counter-measure.In short trouble information
Definite information comprising faulty line and the related data detected.
Corresponding to the working method of the fault detector in Fig. 3, the embodiment of the present application also provides a kind of computer equipments
500, as shown in figure 5, the equipment includes memory 501, processor 502 and is stored on the memory 501 and can be in the processing
The computer program run on device 502, wherein above-mentioned processor 502 realizes that above-mentioned failure refers to when executing above-mentioned computer program
Show the working method of device.
Specifically, above-mentioned memory 501 and processor 502 can be general memory and processor, do not do have here
Body limits, and when the computer program of 502 run memory 501 of processor storage, is able to carry out the work of above-mentioned fault detector
Make method, solves the problems, such as that fault detector cruising ability difference in the prior art and fault detection accuracy are low.
Corresponding to the working method of the fault detector in Fig. 3, the embodiment of the present application also provides a kind of computer-readable
Storage medium is stored with computer program on the computer readable storage medium, which holds when being run by processor
The step of working method of the above-mentioned fault detector of row.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium
Computer program when being run, be able to carry out the working method of above-mentioned fault detector, solve failure in the prior art and refer to
Show device cruising ability difference and the low problem of fault detection accuracy, the application collected fault wire by way of transient state recording
Circuit-switched data simultaneously analyzes the faulty line data by microprocessor, to judge the generation of line fault, and has used more
The technologies such as power supply power supply, double-frequency GPS, remote-wireless electricity promote the performance of fault detector.The embodiment of the present application is proposed
Fault detector have the advantages that high detection precision, cruise duration be long, accurate positioning.
In embodiment provided herein, it should be understood that disclosed method and apparatus, it can be by others side
Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
It connects, 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.
In addition, each functional unit in embodiment provided by the present application can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of fault detector characterized by comprising micro-control module, remote-wireless electricity module, multi-power module,
Ground fault detection module and alarm module；The micro-control module respectively with the remote-wireless electricity module, ground fault
Monitoring modular and alarm module communication connection；The multi-power module respectively with the micro-control module and remote-wireless electricity mould
Block wired connection；
The ground fault detection module for acquiring the magnitude of current of faulty line and load resistance, and passes through Signal separator list
Member carries out Signal separator to the magnitude of current of the faulty line and load resistance, and it is first to obtain quintuple harmonics head half-wave signa, fundamental wave
Half-wave signa and load resistance switching signal；By the quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance
Switching signal is transferred to the micro-control module；
The micro-control module, for the quintuple harmonics head half-wave signa of the ground fault detection module transfer, base
Wave head half-wave signa and load resistance switching signal compare and analyze, to judge whether ground fault occurs, if judgement ground connection
Failure occurs, and the micro-control module generates ground fault information and fault-signal；
The remote-wireless electricity module, it is corresponding upper for the ground fault information to be sent to the micro-control module
Machine；
The alarm module is alarmed for receiving the fault-signal, and accordingly.
2. fault detector as described in claim 1, which is characterized in that the multi-power module, including induction power supply module,
Lithium Asia power module, wind power source module and electric quantity monitoring module；
The induction power supply module, for obtaining mutual inducing current by current transformer；The mutual inducing current is successively passed through whole
After stream filter protective circuit and direct-current voltage reducing circuit are rectified and be depressured, it is input in accumulator；Pass through the energy storage electricity
Road charges to chargeable super capacitor, and is powered by the chargeable super capacitor via linear voltage-stabilizing circuit；
The accumulator also charges to the lithium Asia battery in the power module of the lithium Asia；
Lithium Asia power module, for being powered by lithium Asia battery via linear voltage-stabilizing circuit；
The wind power source module for being generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface；
The electric quantity monitoring module is used for by under-voltage without pressure detection circuit to the induction power supply module, lithium Asia battery module
Voltage monitoring is carried out with the electric current of wind power source module output.
3. fault detector as described in claim 1, which is characterized in that further include: short trouble monitoring modular and 4G communication
Module；
The short trouble monitoring modular, for obtaining electric current pick-up signal by Current Mutual Inductance；To the electric current pick-up signal
After being filtered, carries out I/V and convert to obtain differential voltage signal；The differential voltage signal is subjected to A/D conversion, is obtained described
The corresponding digital signal of differential voltage signal, and it is transferred to the micro-control module；
The micro-control module is also used to calculate the digital signal, obtains load current；If the load current is super
Preset threshold out, the micro-control module determines that short trouble occurs, and generates short trouble information；
The remote-wireless electricity module, be also used to for the short trouble information being sent to the micro-control module it is corresponding on
Position machine；
The 4G communication module, for the short trouble information to be sent to client.
4. fault detector as described in claim 1, which is characterized in that further include: double-frequency GPS module；
The double-frequency GPS module, for using double-frequency GPS locating bad lines location information, and by the faulty line position
Information is transferred to the micro-control module.
5. a kind of working method of fault detector, which is characterized in that the fault detector includes micro-control module, remote
Radio module, multi-power module, ground fault detection module and alarm module；The micro-control module respectively with the long distance
It is communicated to connect from radio module, ground fault detection module and alarm module；The multi-power module respectively with the micro-control
Molding block and remote-wireless electricity module wired connection；The working method includes:
The magnitude of current of the acquisition of ground fault detection the module faulty line and load resistance, and by signal separation unit to institute
The magnitude of current for stating faulty line and load resistance carries out Signal separator, obtains quintuple harmonics head half-wave signa, fundamental wave head half-wave letter
Number and load resistance switching signal；
The micro-control module to the quintuple harmonics head half-wave signa, fundamental wave head half-wave signa and load resistance switching signal into
Row comparative analysis, to judge whether ground fault occurs；
If judging ground fault, the micro-control module generates ground fault information and fault-signal；
The ground fault information is sent to the microcontroller by the remote-wireless electricity module by the micro-control module
The corresponding host computer of module, and the fault-signal is sent to alarm module, to be alarmed accordingly.
6. working method as claimed in claim 5, which is characterized in that the multi-power module includes induction power supply module, lithium
Sub- power module and electric quantity monitoring module；The electric quantity monitoring module by it is under-voltage without pressure detection circuit to the induction power supply mould
Block and lithium Asia battery module carry out voltage detecting, which includes:
The induction power supply module obtains mutual inducing current by current transformer；
By the mutual inducing current successively after rectifying and wave-filtering protects circuit and direct-current voltage reducing circuit to be rectified and be depressured, input
Into accumulator；
The accumulator is that chargeable super capacitor charges, and passes through the chargeable super capacitor via linear voltage stabilization
Circuit is powered；
The accumulator also charges to the lithium Asia battery in the power module of the lithium Asia, and lithium Asia battery is via linear
Voltage regulator circuit is powered.
7. working method as claimed in claim 6, which is characterized in that the multi-power module further includes wind power source module；
The electric quantity monitoring module carries out voltage detecting, the working method to the wind power source module without pressure detection circuit by under-voltage
Include:
The wind power source module is generated electricity by wind-powered electricity generation power generator, and is powered by wind energy battery interface.
8. working method as claimed in claim 5, which is characterized in that the fault detector further includes short trouble monitoring mould
Block and 4G communication module；The working method includes:
The short trouble monitoring modular obtains electric current pick-up signal by Verification of Measuring Current Transformer, and by the electric current pick-up
Signal is input in phase current sensing circuit；
After the electric current pick-up signal is filtered by the filter capacitor in the phase current sensing circuit, I/V transformation is carried out
Obtain differential voltage signal；
The differential voltage signal is converted to digital signal via A/D converter, and is transferred to the micro-control module；
The micro-control module calculates the digital signal, obtains load current；
If load current exceeds preset threshold, the micro-control module determines that short trouble occurs, and generates corresponding short circuit event
Hinder information；
The short trouble information is sent to the micro-control module by remote-wireless electricity module by the micro-control module
Corresponding host computer, and the short trouble information is sent to client by 4G communication module.
9. a kind of computer equipment includes memory, processor and is stored on the memory and can transport on the processor
Capable computer program, which is characterized in that the processor is realized in the claims 5-8 when executing the computer program
The step of described in any item methods.
10. a kind of computer readable storage medium, computer program, feature are stored on the computer readable storage medium
The step of being, method described in any one of the claims 5-8 executed when the computer program is run by processor.
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