CN106526426A - Power distribution network fault analyzing system and method - Google Patents
Power distribution network fault analyzing system and method Download PDFInfo
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- CN106526426A CN106526426A CN201611058731.7A CN201611058731A CN106526426A CN 106526426 A CN106526426 A CN 106526426A CN 201611058731 A CN201611058731 A CN 201611058731A CN 106526426 A CN106526426 A CN 106526426A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 18
- 238000007405 data analysis Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000009877 rendering Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract description 6
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- 238000012423 maintenance Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
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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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Abstract
The embodiment of the invention provides a power distribution network fault analyzing system and method. The system comprises an electrical parameter acquisition apparatus and a data analyzing and processing apparatus, wherein the electrical parameter acquisition apparatus obtains current values of power lines of a power distribution network, and the data analyzing and processing apparatus receives the current values of the power lines, draws current waves of the power lines according to the current values of the power lines and the power frequency corresponding to the current values of the power lines, and determines the fault type of the power distribution network according to the current waves. The system records and reproduces the current waves at the moment when power consumption fault occurs on the power distribution network, reproduces the fault occurring process for maintenance workers and turns randomly occurred fault into manually reproduced fault, thereby realizing fault prevention and fault experience accumulation. The system facilitates fault analysis for power systems in old residential communities.
Description
Technical field
The present invention relates to power fault analysis technical field, more particularly to a kind of power distribution network fault analysis system and side
Method.
Background technology
On power distribution network, electrical appliance is sufficiently complex：The unlatching of high-power electric appliance can cause circuit overload；Frequency conversion equipment makes
With bringing high order current wave, these current waves can affect the Targets of electric energy meter, the normal operation of other electrical appliances, power distribution network
Safety and stability etc.；The intermittent work of the electrical appliances such as refrigerator, also can cause the impact of regularity to power distribution network, or even common
Shake.On the one hand, power distribution network can also be become with certain rule because affecting by people's activity, and such as winter can be taken
The impact load of warmer is increased；Meal time load is increased；Night load is relatively low etc..On the other hand, distribution net side user mistake
It is many, the most common failure such as Jing is often short-circuited, leaks electricity.The troubleshooting of power distribution network as can be seen here is a very complicated job.
At present, for common distribution network failure is processed, such as air switch tripping operation, user can be settled a dispute by the parties concerned themselves, but for
Some are unconventional, do not allow the failure of detectable, random appearance, just must could by the maintainer for possessing professional skill
Reason, generally require failure after maintainer arrives at scene make a look up analysis to failure.
Line node relation is complicated, fault type is complicated, trouble point is not easy due to existing for the power distribution network of power system
The features such as searching；More difficulty of getting up is carried out in failure cleaning work, is particularly some power distribution networks for including old-fashioned living area.Always
Formula living area builds of the remote past due to existing, and nonstandard problem of constructing, distribution line Jing often do not have certain rule, arbitrarily
Arrangement, or even the also obvious electrical isolation of neither one between several different users, plus the high-power electricity consumption of current era
The popularization of the household electrical appliances such as device, frequency conversion electrical appliance, increases the difficulty to power fault analysis.Therefore existing power fault analysis handss
Section is difficult to be analyzed the failure problems in old-fashioned living area.
The content of the invention
The goal of the invention of the present invention is to provide a kind of power distribution network fault analysis system and method, to solve prior art
It is difficult to carry out the power system of old-fashioned cell the problem of accident analysis.
Embodiments in accordance with the present invention provide a kind of power distribution network fault analysis system, and the system includes, electrical quantity
Harvester and data APU；
The electrical quantity harvester obtains the current value of the supply line of adapted electrical network in real time；
Data Analysis Services device receives the current value of the supply line, according to current value and the confession of the supply line
The corresponding work frequency of current value of electric line draws the current wave of supply line；Adapted electrical network is determined according to the current wave
Fault type.
Further, the electrical quantity harvester includes：First current unit, the second current unit and the 3rd electric current list
Unit；
The supply line includes：Zero line, live wire and ground wire；
First current unit is used to gather the live wire current value, and the live wire current value is uploaded to data analysiss
Processing meanss；
Second current unit is used to gather the neutral line current value；The neutral line current value is uploaded to into data analysiss
Processing meanss；
3rd current unit is used to gather the ground line current value；The ground line current value is uploaded to into data analysiss
Processing meanss.
Further, Data Analysis Services device includes：Standard time clock, joint account unit, internal storage, comparator and
Fault database；
The standard time clock is used for the corresponding work frequency of current value for recording supply line and uploads the time point
To the joint account unit；
The joint account unit is used for the current value for receiving the supply line, according to the current value of the supply line
Work frequency corresponding with the current value of supply line draws the current wave of supply line, and the current wave is uploaded in described
Portion's memorizer；
The internal storage is used to receive the current wave, and the current wave is stored, and by the current wave
Reach in comparator；
The fault database is for preset fault wave collection is uploaded in the comparator；
The comparator is used to travel through the preset fault wave collection, searches for the preset failure matched with the current wave
Ripple, determines the fault type of adapted electrical network according to the preset fault wave.
Further, the system also includes the power source controlled output device of simulated failure output；
The power source controlled output device of the simulated failure output exports the current wave, and the current wave is the event
Non-existent current wave in barrier storehouse.
Further, the power source controlled output device of simulated failure output includes：
Source o controller and output source；
The source o controller is used to receive current wave in the internal storage, judges that whether the current wave is
The preset fault wave of preset fault wave collection, if the current wave is not the preset fault wave of the preset fault wave collection, by institute
State fault wave to export to output source；
The output source is used to receive the current wave, reproduces the corresponding event of the current wave according to the current wave
Barrier.
Second aspect present invention illustrates a kind of power distribution network fault analysis method, including：
The current value of the supply line of adapted electrical network is obtained in real time；
Supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Current wave；
The fault type of adapted electrical network is determined according to the current wave.
Further, the current value of the supply line of adapted electrical network is obtained in real time；
Supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Current wave the step of include：
The current value of supply line's zero line of adapted electrical network is obtained in real time；
The current value of supply line's live wire of adapted electrical network is obtained in real time；
Judge whether the current value of the zero line is equal to the current value of the live wire；
If the current value of the zero line is equal to the current value of live wire, the current value of real time record zero line and the live wire
Current value；
The current wave of supply line is drawn according to the current value of the zero line and the corresponding work frequency of the current value of zero line；
The current wave of supply line is drawn according to the current value of the live wire and the corresponding work frequency of the current value of live wire.
Further, the current value of the supply line of adapted electrical network is obtained in real time；
Supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Current wave the step of include：
The current value of supply line's ground wire of adapted electrical network is obtained in real time；
Judge the current value of the ground wire whether more than or equal to zero；
If the current value of the ground wire is more than zero, the current value of real time record ground wire；
According to the current value of the ground wire and the current wave of the corresponding time point-rendering supply line of the current value of ground wire.
Further, determine that the fault type of adapted electrical network includes according to the current wave：
Preset fault wave collection is traveled through, the preset fault wave matched with the current wave is searched for；
The fault type of the adapted electrical network is determined according to the preset fault wave.
From above technical scheme, the embodiment of the present invention illustrates a kind of power distribution network fault analysis system and method, institute
The system of stating includes, electrical quantity harvester and data APU；The electrical quantity harvester is obtained in real time with electricity consumption
The current value of the supply line of net；Data Analysis Services device receives the current value of the supply line, according to the supply lines
The current value on road work frequency corresponding with the current value of supply line draws the current wave of supply line；According to the current wave
Determine the fault type of adapted electrical network.System record and reduce the electricity that electricity consumption instant of failure occurs on power distribution network that the present invention is provided
Stream ripple, by the current wave and the contrast of preset fault wave that gather, helps the service work personnel of power distribution net side to find event
The cause of barrier and the process for checking failure, conveniently, intuitively can provide analysis foundation to maintainer；Such that it is able to realize event
The prevention of barrier and the experience accumulation of failure, facilitate the power system of old-fashioned cell to carry out accident analysis.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing that needs are used is briefly described, it should be apparent that, drawings in the following description are only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can be being obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is to be preferable to carry out exemplifying a kind of structured flowchart of power distribution network fault analysis system according to one；
Fig. 2 is to be preferable to carry out exemplifying a kind of flow chart of power distribution network fault analysis method according to one.
Marginal data：
201- electrical quantity harvesters；The first current units of 101-；The second current units of 102-；The 3rd electric current lists of 103-
Unit；104- voltage acquisition units；105- supply lines；202- Data Analysis Services devices；106- standard time clocks；107- merges meter
Calculate unit；108- internal storages；109- comparators；110- fault databases；The power source controlled output of 203- simulated failures output
Device；111- sources o controller；112- outputs source.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
First aspect present invention illustrates a kind of power distribution network fault analysis system, as shown in figure 1, the system includes, electricity
Parameter acquisition devices 201 and data APU 202；The electrical quantity harvester 201 obtains adapted electrical network in real time
The current value of supply line 105；Data Analysis Services device 202 receives the current value of the supply line 105, according to the confession
The current value of electric line 105 work frequency corresponding with the current value of supply line 105 draws the current wave of supply line 105；
The fault type of adapted electrical network is determined according to the current wave.
Specifically, there is the current wave of electricity consumption instant of failure on the system record power distribution network that the present invention is provided, according to described
Current wave determines fault type；Preset fault wave collection is prestored specifically, according to current wave search and the electric current of collection
The preset fault wave that ripple matches, determines the corresponding fault type of the preset fault wave, and then determines the failure of adapted electrical network
Type.The system can help the service work personnel of power distribution net side to find the cause of failure and check the mistake of failure
Journey, conveniently, intuitively can provide analysis foundation to maintainer；Additionally, the output function of the system, can be by failure wink
Between current wave simulation output, maintainer can be helped to reappear the generating process of failure, the random failure for occurring can be become
Into the failure that artificially can be reappeared, such that it is able to realize the prevention of failure and the experience accumulation of failure, malfunction analysis procedure is in institute
State in system and complete, therefore the power system suitable for old-fashioned cell carries out accident analysis.
Further, the electrical quantity harvester 201 includes：First current unit 101, the second current unit 102 and
Three current units 103；
The supply line 105 includes：Zero line, live wire and ground wire；
First current unit 101 is used to gather the live wire current value, and the live wire current value is uploaded to data
APU 202；
Second current unit 102 is used to gather the neutral line current value；The neutral line current value is uploaded to into data
APU 202；
3rd current unit 103 is used to gather the ground line current value；The ground line current value is uploaded to into data
APU 202.
Specifically, because supply line 105 is usually zero line, live wire, three lines of earth lead, wherein zero line and live wire is to carry
For the loop of electric power energy, it is ensured that supply of electric power；Earth lead is for the Leakage Current or electrostatic on device housings is connect
Ground release, for ensureing Electrical Safety, because the electric current under normal circumstances on zero line is equal to the electric current on live wire, ground wire is without electricity
Stream, when a failure occurs it (situations such as example household electrical appliance electric leakage, user sneak current), can cause zero line live wire electric current unequal, ground
Line has electric current, and therefore the embodiment of the present invention is used to gather the live wire current value, the second electric current list using the first current unit 101
Unit 102 is used to gather the neutral line current value；3 current unit monitoring circuits carry out the situation of change of standby current, to carry out event
Barrier analysis.The current wave of supply line 105 is drawn, the fault type of adapted electrical network is determined according to the current wave.
The electrical quantity harvester 201 also adopts unit including voltage simultaneously, for real-time collection voltages.
Further, the Data Analysis Services device 202 includes：Standard time clock 106, joint account unit 107, inside is deposited
Reservoir 108, comparator 109 and fault database 110；
The standard time clock 106 is used to record the corresponding time point of current value of supply line 105 and by the time point
It is uploaded to the joint account unit 107；
The joint account unit 107 is used for the current value for receiving the supply line 105, according to the supply line
105 current value work frequency corresponding with the current value of supply line 105 draws the current wave of supply line 105, will be described
Current wave is uploaded to the internal storage 108；
The internal storage 108 is used to receive the current wave, and the current wave is stored, and by the current wave
It is uploaded in comparator 109；
The fault database 110 is for preset fault wave collection is uploaded in the comparator 109；
The comparator 109 is used to travel through the preset fault wave collection, searches for the preset event matched with the current wave
Barrier ripple, determines the fault type of adapted electrical network according to the preset fault wave.
Specifically, Data Analysis Services device 202 is the most crucial most important place of this equipment, wherein standard time clock 106,
A markers can be provided to all of data, can not only help to record the time of failure generation, may also help in searching and
Time cycle related fault observer；For example：The method of discovery time rule is that continuous long-time is monitored, if a certain type
Failure certain time period (such as：Family cooking time, summer turn on the aircondition the time, and winter opens the electric furnace time) appearance is easy to,
So such failure is exactly have relation with the time cycle.Electrical quantity collecting unit can be adopted by joint account unit 107
The parameter that collection comes up is calculated, and obtains the data such as power, angle；Sampling each time can be obtained by internal storage 108
Electrical parameter data is stored in real time, for checking and calling at any time；Comparator 109 is except can be calculated by combining unit
The electrical parameter data at the upper moment in electrical quantity memory storage is compared outer in real time, moreover it is possible to and inside fault database 110
The characteristic parameter of known preset fault wave is compared, once draw data exception or meet the typical case in fault database 110
Failure, is informed about memorizer and marks the electrical quantity near the moment.
Further, the system also includes the power source controlled output device 203 of simulated failure output；
Current wave described in the power source controlled output of the simulated failure output, the current wave is the fault database 110
In non-existent current wave.
Further, the power source controlled output device 203 of simulated failure output includes：Source o controller 111 and output
Power source 112；
The source o controller 111 is used to receive the current wave in the internal storage 108, judges the current wave
It is whether preset fault wave that preset fault wave is concentrated, if the current wave is not the preset failure that the preset fault wave is concentrated
Ripple, then export the fault wave to output source 112；
The output source 112 is used to receive the current wave, reproduces the current wave correspondence according to the current wave
Failure.
Specifically, power source controlled output device, is on the one hand by the corresponding fault recurrence of current wave of collection, the electricity
Stream ripple is non-existent current wave in the fault database 110.For example：Be short-circuited failure, and electric current can increase decades of times in moment,
Power source controlled output device can simulate the generation of short circuit, the size of suddenly change output current at the output source 112,
Suddenly increase to decades of times.Power source controlled output device on the other hand recorded, the inner feelings not having of fault database 110
Condition, reproduces completely.For example：Oscillograph recorded a kind of jump side repeatedly of electric current, but, source is defeated in fault database 110 beyond example
Go out the corresponding fault wave of amplitude that controller 111 just records this exception time of saltus step, the frequency of saltus step, saltus step repeatedly,
Then this exception is reproduced according to these fault waves, analyze failure for staff.
Second aspect present invention illustrates a kind of power distribution network fault analysis method, as shown in Fig. 2 methods described includes：
S301 obtains the current value of the supply line of adapted electrical network in real time；
S302 draws power supply according to the current value of the supply line and the corresponding work frequency of the current value of supply line
The current wave of circuit；
S303 determines the fault type of adapted electrical network according to the current wave.
Specifically, obtain in real time the current value of the supply line of adapted electrical network, according to the current value of the supply line with
The corresponding work frequency of current value of supply line draws the current wave of supply line, occurs to use electric fault wink on record power distribution network
Between current wave, fault type is determined according to the current wave；Preset fault wave collection is prestored specifically, according to the electricity of collection
The preset fault wave that stream ripple search is matched with the current wave, determines the corresponding fault type of the preset fault wave, and then
Determine the fault type of adapted electrical network.Methods described can help the service work personnel of power distribution net side to find rising for failure
Cause and the process for checking failure, conveniently, intuitively can provide analysis foundation to maintainer；Additionally, the output of the system
The current wave simulation output of instant of failure can be helped maintainer to reappear the generating process of failure by function, can be by
The random failure for occurring becomes the failure that artificially can be reappeared, such that it is able to realize the prevention of failure and the experience accumulation of failure, side
Just the power system of old-fashioned cell carries out accident analysis.
Further, drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line and supplied
The step of current wave of electric line, includes：
The current value of supply line's zero line of adapted electrical network is obtained in real time；
The current value of supply line's live wire of adapted electrical network is obtained in real time；
Judge whether the current value of the zero line is equal to the current value of the live wire；
If the current value of the zero line is equal to the current value of live wire, the current value of real time record zero line and the live wire
Current value；
The current wave of supply line is drawn according to the current value of the zero line and the corresponding work frequency of the current value of zero line；
The current wave of supply line is drawn according to the current value of the live wire and the corresponding work frequency of the current value of live wire.
Because the electric current on zero line is equal to the electric current on live wire, ground wire no current, when a failure occurs it (example under normal circumstances
Situations such as sneaking current such as household electrical appliance electric leakage, user), now draw the current wave of supply line and the electric current of drafting supply line
Ripple, the current wave of the electric line when current wave of electric line now is accident, just records the electricity of electric line with the present embodiment
Stream ripple, can reduce the frequency of the current wave of drafting electric line, therefore the amount of calculation of reduction system, and then lift determination failure
Speed.
Further, the current value of the real-time supply line for obtaining adapted electrical network；
Supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Current wave, step includes：
The current value of supply line's ground wire of adapted electrical network is obtained in real time；
Judge the current value of the ground wire whether more than or equal to zero；
If the current value of the ground wire is more than zero, the current value of real time record ground wire；
According to the current value of the ground wire and the electric current of the corresponding work frequency point-rendering supply line of the current value of ground wire
Ripple.
Specifically, because under normal circumstances, ground wire no current, (such as household electrical appliance electric leakage, user steals when a failure occurs it
Electric situations such as), ground line current can be caused to be not equal to zero；The current wave for now drawing supply line and the electric current for drawing supply line
Ripple, the current wave of the electric line when current wave of electric line now is accident, just records the electricity of electric line with the present embodiment
Stream ripple, can reduce the frequency of the current wave of drafting electric line, therefore the amount of calculation of reduction system, and then lift determination failure
Speed.
Further, determine that the fault type of adapted electrical network includes according to the current wave：
Preset fault wave collection is traveled through, the preset fault wave matched with the current wave is searched for；
The fault type of the adapted electrical network is determined according to the preset fault wave.
There is the current wave of electricity consumption instant of failure on the system record power distribution network that the present invention is provided, it is true according to the current wave
Determine fault type；Preset fault wave collection is specifically prestored, is matched with the current wave according to the current wave search of collection
Preset fault wave, determine the corresponding fault type of the preset fault wave, and then determine the fault type of adapted electrical network.This
There is the current wave of electricity consumption instant of failure on the system record and reduction power distribution network of bright offer, the system can help electric power to match somebody with somebody
The service work personnel of grid side find the cause of failure and check the process of failure, can conveniently, intuitively give maintainer
Analysis foundation is provided；Additionally, the current wave simulation output of instant of failure can be helped by the output function of the system
Maintainer reappears the generating process of failure, the random failure for occurring can be become the failure that artificially can be reappeared, such that it is able to
The prevention of failure and the experience accumulation of failure are realized, facilitates the power system of old-fashioned cell to carry out accident analysis.
From above technical scheme, the embodiment of the present invention illustrates a kind of power distribution network fault analysis system and method, institute
The system of stating includes, electrical quantity harvester 201 and data APU 202；The electrical quantity harvester 201 is obtained in real time
Take the current value of the supply line 105 of adapted electrical network；Data Analysis Services device 202 receives the electric current of the supply line 105
Value, draws supply line according to the current value work frequency corresponding with the current value of supply line 105 of the supply line 105
105 current wave；The fault type of adapted electrical network is determined according to the current wave.System record and go back first wife that the present invention is provided
There is the current wave of electricity consumption instant of failure on electrical network, by the current wave and the contrast of preset fault wave that gather, help electric power to match somebody with somebody
The service work personnel of grid side find the cause of failure and check the process of failure, can conveniently, intuitively give maintainer
Analysis foundation is provided；Additionally, the current wave simulation output of instant of failure can be helped by the output function of the system
Maintainer reappears the generating process of failure, the random failure for occurring can be become the failure that artificially can be reappeared, such that it is able to
The prevention of failure and the experience accumulation of failure are realized, facilitates the power system of old-fashioned cell to carry out accident analysis.
Those skilled in the art will readily occur to its of the present invention after considering description and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification of the present invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the precision architecture for being described above and being shown in the drawings is the invention is not limited in, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is limited only by appended claim.
Claims (9)
1. a kind of power distribution network fault analysis system, it is characterised in that the system includes, electrical quantity harvester and data point
Analysis processing meanss；
The electrical quantity harvester obtains the current value of the supply line of adapted electrical network in real time；
Data Analysis Services device receives the current value of the supply line, according to the current value and supply lines of the supply line
The corresponding work frequency of current value on road draws the current wave of supply line；The failure of adapted electrical network is determined according to the current wave
Type.
2. system according to claim 1, it is characterised in that the electrical quantity harvester includes：First current unit,
Second current unit and the 3rd current unit；
The supply line includes：Zero line, live wire and ground wire；
First current unit is used to gather the live wire current value, and the live wire current value is uploaded to Data Analysis Services
Device；
Second current unit is used to gather the neutral line current value；The neutral line current value is uploaded to into Data Analysis Services
Device；
3rd current unit is used to gather the ground line current value；The ground line current value is uploaded to into Data Analysis Services
Device.
3. system according to claim 1, it is characterised in that the Data Analysis Services device includes：Standard time clock, closes
And computing unit, internal storage, comparator and fault database；
The standard time clock is used for the corresponding time point of current value for recording supply line and is uploaded to the time point described
Joint account unit；
The joint account unit is used for the current value for receiving the supply line, according to current value and the confession of the supply line
The corresponding work frequency of current value of electric line draws the current wave of supply line, the current wave is uploaded to the inside and is deposited
Reservoir；
The internal storage is used to receive the current wave, and the current wave is stored, and the current wave is uploaded to
In comparator；
The fault database is for preset fault wave collection is uploaded in the comparator；
The comparator is used to travel through the preset fault wave collection, searches for the preset fault wave matched with the current wave, root
The fault type of adapted electrical network is determined according to the preset fault wave.
4. system according to claim 1, it is characterised in that the system also includes the power source control of simulated failure output
Output device processed；
The power source controlled output device of the simulated failure output exports the current wave, and the current wave is the fault database
In non-existent current wave.
5. system according to claim 4, it is characterised in that the power source controlled output device of the simulated failure output
Including：
Source o controller and output source；
The source o controller is used to receive the current wave in the internal storage, judges whether the current wave is preset
The preset fault wave of fault wave collection, if the current wave is not the preset fault wave of the preset fault wave collection, will the event
Barrier ripple is exported to output source；
The output source is used to receive the current wave, reproduces the corresponding failure of the current wave according to the current wave.
6. a kind of power distribution network fault analysis method, it is characterised in that include：
The current value of the supply line of adapted electrical network is obtained in real time；
The electricity of supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Stream ripple；
The fault type of adapted electrical network is determined according to the current wave.
7. method according to claim 6, it is characterised in that obtain the current value of the supply line of adapted electrical network in real time；
The electricity of supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
The step of stream ripple, includes：
The current value of supply line's zero line of adapted electrical network is obtained in real time；
The current value of supply line's live wire of adapted electrical network is obtained in real time；
Judge whether the current value of the zero line is equal to the current value of the live wire；
If the current value of the zero line is equal to the electric current of the current value of live wire, the current value of real time record zero line and the live wire
Value；
The current wave of supply line is drawn according to the current value of the zero line and the corresponding work frequency of the current value of zero line；
The current wave of supply line is drawn according to the current value of the live wire and the corresponding work frequency of the current value of live wire.
8. method according to claim 6, it is characterised in that the electric current of the real-time supply line for obtaining adapted electrical network
Value；
The electricity of supply line is drawn according to the current value of the supply line and the corresponding work frequency of the current value of supply line
Stream ripple, step include：
The current value of supply line's ground wire of adapted electrical network is obtained in real time；
Judge the current value of the ground wire whether more than or equal to zero；
If the current value of the ground wire is more than zero, the current value of real time record ground wire；
According to the current value of the ground wire and the current wave of the corresponding work frequency point-rendering supply line of the current value of ground wire.
9. method according to claim 1, it is characterised in that the failure that adapted electrical network is determined according to the current wave
Type includes：
Preset fault wave collection is traveled through, the preset fault wave matched with the current wave is searched for；
The fault type of the adapted electrical network is determined according to the preset fault wave.
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