CN107561409A - A kind of fault diagnosis method and system of transmission line of electricity - Google Patents
A kind of fault diagnosis method and system of transmission line of electricity Download PDFInfo
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- CN107561409A CN107561409A CN201710789642.8A CN201710789642A CN107561409A CN 107561409 A CN107561409 A CN 107561409A CN 201710789642 A CN201710789642 A CN 201710789642A CN 107561409 A CN107561409 A CN 107561409A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a kind of fault diagnosis method and system of transmission line of electricity, method includes step：Traveling wave detector device is installed on transmission line of electricity；Traveling wave detector device gathers the fault recorder data of each transmission line of electricity and is sent to power distribution automation main station system；The transient zero-sequence current amplitude of corresponding distribution line is calculated according to the fault recorder data of each transmission line of electricity, select transient zero-sequence current amplitude maximum is used as first object faulty line；The transient current polarity of corresponding distribution line is calculated according to the fault recorder data of each transmission line of electricity, selection is used as the second target faults circuit with the opposite polarity of other distribution lines；If first object faulty line and the second target faults circuit are same distribution line, it is determined that the distribution line is faulty line.The present invention is combined by two kinds of method of discrimination of transient zero-sequence current amplitude and transient current polarity is determined faulty line, and not only method is simple, and thinking is clear and definite, and result of determination is accurate.
Description
Technical field
The present invention relates to a kind of fault diagnosis method and system of transmission line of electricity, belong to technical field of electric system protection.
Background technology
Transmission line of electricity is broken down, and can not only influence industrial production and the daily life of the mankind, and entail dangers to electricity is gone back when serious
The safe and stable operation of Force system.Therefore, the position of failure point of transmission line of electricity is quickly and accurately determined, permanent fault can be accelerated
Reparation, remove a hidden danger in time to avoid the generation again of a large amount of transient faults, to ensure power system safety and stability and
Economical operation is of great significance.
At present, the fault location of transmission line of electricity, has been proposed a variety of methods both at home and abroad, mainly there is impedance method, S injections
Method, " fault detector " technology, FEEDER AUTOMATION and traveling wave method.Impedance method is by line impedance, load and power parameter
Have a great influence, for the distribution line with multiple-limb, impedance method can not exclude pseudo-fault point.The Injection Signal of S injection methods
Finite energy, if trouble point is far through very big resistance eutral grounding, or trouble point distance line top, then signal will be very faint
Can not accurate measurement.Although " fault detector " technology has obtained practical, but the using effect of earth-fault indicator is then not
Highly desirable, accuracy is not high, and power network occurs usually not react during singlephase earth fault.FEEDER AUTOMATION can not accurately
Failure is positioned, and the section of fault location is influenceed by feeder automation equipment packing density.
Therefore, in order to solve the above problems, there is an urgent need to a kind of effective transmission line malfunction diagnosis scheme.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of fault diagnosis method and system of transmission line of electricity, and
The fault diagnosis localization method and system of a kind of transmission line of electricity, can not only Accurate Diagnosis faulty line, and quickly to failure
Circuit is positioned.
The present invention solves its technical problem and adopted the technical scheme that：
In a first aspect, a kind of method for diagnosing faults of transmission line of electricity provided in an embodiment of the present invention, it comprises the following steps：
Step 1, the traveling wave detector device for detecting travelling wave signal is installed on transmission line of electricity；
Step 2, traveling wave detector device gathers the fault recorder data of each transmission line of electricity and by wireless when breaking down
Communication mode is sent to power distribution automation main station system；
Step 3, the transient zero-sequence current width of corresponding distribution line is calculated according to the fault recorder data of each transmission line of electricity
Value, the distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Step 4, the transient current polarity of corresponding distribution line, choosing are calculated according to the fault recorder data of each transmission line of electricity
Select with the opposite polarity distribution line of other distribution lines as the second target faults circuit；
Step 5, if first object faulty line and the second target faults circuit are same distribution line, it is determined that this is matched somebody with somebody
Electric line is faulty line.
As a kind of possible implementation of the present embodiment, the detailed process of the step 2 comprises the following steps：
Step 21, traveling wave detector device gathers fault recorder data and the storage of each transmission line of electricity；
Step 21, the communication conditions between traveling wave detector device and power distribution automation main station system are monitored, if communication is just
Chang Ze enters step 24, otherwise into step 23,
Step 23, carry out communication failure positioning and repair logical between traveling wave detector device and power distribution automation main station system
Believe link；
Step 24, traveling wave detector device sends out the fault recorder data for gathering each transmission line of electricity by communication
Give power distribution automation main station system.
As a kind of possible implementation of the present embodiment, the detailed process of the step 23 comprises the following steps：
Step 231, obtain traveling wave detector device wireless module service communication state, radio communication network management system it is wireless
Module grid tubulose state, SIM card state, base station state information, and the state and positional information of power distribution automation main station system；
Step 232, according to the up-downgoing data flow to be communicated between traveling wave detector device and power distribution automation main station system, divide
Communication path is analysed, extracts path and annexation that packet passes through, establishes the topological relation of a network communication path, simultaneously
The Network Topology Discovery algorithm being combined using three kinds of snmp protocol, ICMP agreements and ARP protocol agreements, find wireless communication networks
The link layer network topology of network and the configuration information of extraction network；
Step 233, by describing the key node facility information and IP address information of communication path, using the side of ping bags
Formula carries out network collection key node status information, and the key node state includes State Grid Corporation of China's fire wall, communication lines
Key node state inside router, mobile operator on footpath；
Step 234, according to the communication topology relation and key node status information of foundation, each traveling wave detector of automatic detection
The communications status of device, it is associated and compares according to business datum state and network management data state, analyzes fault type, if
Webmaster state is normal and service condition is abnormal, and failure cause is traveling wave detector device part, if webmaster state and business shape
State is abnormal, and failure cause is communications portion；Then communications portion determines failure further according to the status information of each key node
Specific node；
Step 235, according to the failure cause of determination and position, carry out repairing traveling wave detector device and power distribution automation main station
Communication link between system.
As a kind of possible implementation of the present embodiment, in step 232, the detailed process of the analysis communication path
To analyze the second layer and third layer information of 7 layers of standard agreement model of ISO networks.
Second aspect, a kind of fault diagnosis system of transmission line of electricity provided in an embodiment of the present invention, it includes：
Traveling wave detector device, for installed in transmission line of electricity, the failure of each transmission line of electricity to be recorded when collection is broken down
Wave number evidence；
Wireless communication system, the fault recorder data for traveling wave detector device to be gathered to each transmission line of electricity, which is sent to, matches somebody with somebody
Electric automation main station system；
First object faulty line module, for calculating corresponding distribution wire according to the fault recorder data of each transmission line of electricity
The transient zero-sequence current amplitude on road, the distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Second target faults line module, for calculating corresponding distribution wire according to the fault recorder data of each transmission line of electricity
The opposite polarity distribution line of the transient current polarity on road, selection and other distribution lines is as the second target faults circuit；
Faulty line determining module, to be contrasted to first object faulty line and the second target faults circuit, such as
Fruit first object faulty line and the second target faults circuit are same distribution line, it is determined that the distribution line is fault wire
Road.
The third aspect, a kind of fault diagnosis localization method of transmission line of electricity provided in an embodiment of the present invention, it includes following
Step：
Step S1, the travelling wave signal detection means of some equidistantly distributeds is installed on transmission line of electricity；
Step S2, travelling wave signal detection means is sent out travelling wave signal data are gathered by communication when breaking down
Give power distribution automation main station system；
Step S3, the travelling wave signal data meter that power distribution automation main station system gathers according to each travelling wave signal detection means
Calculate the location of distribution line failure.
As a kind of possible implementation of the present embodiment, the detailed process of the step S3 is：It was found that fault traveling wave is believed
After number, travelling wave signal detection means Q corresponding to the fault traveling wave signal is foundiAnd travelling wave signal detection means adjacent thereto
Qi+1Corresponding second fault traveling wave signal, determined after analyzing respectively fault traveling wave signal and the second fault traveling wave signal
Position at failure.
It is described to fault traveling wave signal and the second fault traveling wave signal point as a kind of possible implementation of the present embodiment
The process do not analyzed is：
The transient zero-sequence current amplitude per phase distribution line is calculated according to fault traveling wave signal first；Select transient zero-sequence electricity
The phase distribution line for flowing amplitude maximum is target faults circuit；
Then the transient zero-sequence current amplitude per phase distribution line is calculated according to the second fault traveling wave signal；Judge transient state zero
Whether the maximum phase distribution line of sequence current amplitude is target faults circuit, and if it is the phase distribution line is fault wire
Road, and judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
The implementation alternatively possible as the present embodiment, it is described to fault traveling wave signal and the second fault traveling wave signal
The process analyzed respectively is：
The transient current polarity per phase distribution line is calculated according to fault traveling wave signal first；Selection and other distribution lines
Opposite polarity phase distribution line be target faults circuit；
Then the transient current polarity per phase distribution line is calculated according to the second fault traveling wave signal；Judge and other distribution
Whether the opposite polarity phase distribution line of circuit is target faults circuit, and if it is the phase distribution line is fault wire
Road, and judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
Fourth aspect, a kind of fault diagnosis alignment system of transmission line of electricity provided in an embodiment of the present invention, it includes：
Travelling wave signal detection means, transmission line of electricity is arranged on for equidistantly distributed, collection is each defeated when breaking down
The fault recorder data of electric line；
Wireless communication system, the fault recorder data for detection means to be gathered to each transmission line of electricity are sent to distribution certainly
Dynamicization main station system；
Power distribution automation main station system, the travelling wave signal data for being gathered according to each travelling wave signal detection means calculate
The location of distribution line failure.
The technical scheme of the embodiment of the present invention can have the advantage that as follows：
In a first aspect, a kind of method for diagnosing faults of transmission line of electricity of technical scheme of the embodiment of the present invention, it utilizes traveling wave
The fault recorder data of each transmission line of electricity when detection means collection is broken down, and pass through transient zero-sequence current amplitude and transient state
Two kinds of method of discrimination of current polarity, which are combined, is determined faulty line, and not only method is simple, and thinking is clear and definite, and result of determination
Accurately；By monitoring the communication conditions between traveling wave detector device and power distribution automation main station system, and carry out communication failure and determine
The communication link between traveling wave detector device and power distribution automation main station system is simultaneously repaired in position, and ensure that will gather each power transmission line
The fault recorder data on road is timely and accurately sent to power distribution automation main station system；Can using a kind of communication failure localization method
Actively discover, analyze failure, provide analysis result, the specific trouble point of positioning automatically, not only ensure that traveling wave detector device with matching somebody with somebody
Good communication situation between electric automation main station system, and substantially reduce trouble shoot positioning time, reduce communication
Breakdown Maintenance cost.The technical scheme by the fault recorder data that gets can fast positioning faulty line, realize therefore
Hinder the fast positioning of circuit, reduce the loss of manpower and materials.
Second aspect, a kind of fault diagnosis system of transmission line of electricity of technical scheme of the embodiment of the present invention include traveling wave detector
Device, wireless communication system, first object faulty line module, the second target faults line module and faulty line determine mould
Block, the fault recorder data of each transmission line of electricity when it is broken down using the collection of traveling wave detector device, and pass through first object
Faulty line module, the second target faults line module and faulty line determining module are determined faulty line, pass through acquisition
The fault recorder data arrived can fast positioning faulty line, realize the fast positioning of faulty line, reduce manpower and materials
Loss.
The third aspect, a kind of fault diagnosis localization method of transmission line of electricity of technical scheme of the embodiment of the present invention, it passes through
Travelling wave signal data when some travelling wave signal detection means collections installed in equidistantly distributed on transmission line of electricity are broken down, and
The location of distribution line failure is calculated according to the travelling wave signal data of collection；Pass through both-end travelling wave positioning method, Neng Gouzhun
Really rapidly calculate abort situation；By using the positioning of both-end traveling wave and transient zero-sequence current amplitude features method or use
Both-end traveling wave positions and transient current polarity discriminating method is combined and failure is differentiated and positioned, can not only quick diagnosis
Be out of order circuit and abort situation, and fault distinguishing is accurate, registration.
Fourth aspect, a kind of fault diagnosis alignment system of transmission line of electricity of technical scheme of the embodiment of the present invention, it includes
Travelling wave signal detection means, wireless communication system and power distribution automation main station system, it is gathered using travelling wave signal detection means
Travelling wave signal data when breaking down, the travelling wave signal data of collection are sent to by power distribution automation master by wireless communication system
Stand system, power distribution automation main station system calculates the location of distribution line failure according to the travelling wave signal data of collection；With
The location of distribution line failure is calculated in the travelling wave signal data gathered according to each travelling wave signal detection means, by double
Hold travelling wave positioning method, can quickly and accurately calculate abort situation, by the fault recorder data that gets can quickly,
The position of failure point of transmission line of electricity is accurately determined, ensure that safety and stability and the economical operation of power system.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the method for diagnosing faults of transmission line of electricity according to an exemplary embodiment；
Fig. 2 is a kind of block diagram of the fault diagnosis system of transmission line of electricity according to an exemplary embodiment；
Fig. 3 is a kind of flow chart of the fault diagnosis localization method of transmission line of electricity according to an exemplary embodiment；
Fig. 4 is a kind of block diagram of the fault diagnosis alignment system of transmission line of electricity according to an exemplary embodiment.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
Fig. 1 is a kind of flow chart of the method for diagnosing faults of transmission line of electricity according to an exemplary embodiment.Such as Fig. 1
Shown, the method for diagnosing faults of the transmission line of electricity may comprise steps of：
Step 1, the traveling wave detector device for detecting travelling wave signal is installed on transmission line of electricity；
Step 2, traveling wave detector device gathers the fault recorder data of each transmission line of electricity and by wireless when breaking down
Communication mode is sent to power distribution automation main station system；
Step 3, the transient zero-sequence current width of corresponding distribution line is calculated according to the fault recorder data of each transmission line of electricity
Value, the distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Step 4, the transient current polarity of corresponding distribution line, choosing are calculated according to the fault recorder data of each transmission line of electricity
Select with the opposite polarity distribution line of other distribution lines as the second target faults circuit；
Step 5, if first object faulty line and the second target faults circuit are same distribution line, it is determined that this is matched somebody with somebody
Electric line is faulty line.
The failure of each transmission line of electricity is recorded when the technical scheme of the present embodiment is broken down using the collection of traveling wave detector device
Wave number evidence, and be combined by two kinds of method of discrimination of transient zero-sequence current amplitude and transient current polarity and be determined fault wire
Road, not only method is simple, and thinking is clear and definite, and result of determination is accurate.The technical scheme passes through the fault recorder data that gets
Can fast positioning faulty line, realize the fast positioning of faulty line, reduce the loss of manpower and materials.
In a kind of possible implementation, the detailed process of the step 2 comprises the following steps：
Step 21, traveling wave detector device gathers fault recorder data and the storage of each transmission line of electricity；
Step 21, the communication conditions between traveling wave detector device and power distribution automation main station system are monitored, if communication is just
Chang Ze enters step 24, otherwise into step 23,
Step 23, carry out communication failure positioning and repair logical between traveling wave detector device and power distribution automation main station system
Believe link；
Step 24, traveling wave detector device sends out the fault recorder data for gathering each transmission line of electricity by communication
Give power distribution automation main station system.
This implementation is gone forward side by side by monitoring the communication conditions between traveling wave detector device and power distribution automation main station system
Row communication failure positions and repairs the communication link between traveling wave detector device and power distribution automation main station system, and ensure that to adopt
The fault recorder data for collecting each transmission line of electricity is timely and accurately sent to power distribution automation main station system.
In a kind of possible implementation, the detailed process of the step 23 comprises the following steps：
Step 231, obtain traveling wave detector device wireless module service communication state, radio communication network management system it is wireless
Module grid tubulose state, SIM card state, base station state information, and the state and positional information of power distribution automation main station system；
Step 232, according to the up-downgoing data flow to be communicated between traveling wave detector device and power distribution automation main station system, divide
Communication path is analysed, extracts path and annexation that packet passes through, establishes the topological relation of a network communication path, simultaneously
The Network Topology Discovery algorithm being combined using three kinds of snmp protocol, ICMP agreements and ARP protocol agreements, find wireless communication networks
The link layer network topology of network and the configuration information of extraction network；The detailed process of the analysis communication path is analysis ISO nets
The second layer and third layer information of 7 layers of standard agreement model of network；
Step 233, by describing the key node facility information and IP address information of communication path, using the side of ping bags
Formula carries out network collection key node status information, and the key node state includes State Grid Corporation of China's fire wall, communication lines
Key node state inside router, mobile operator on footpath；
Step 234, according to the communication topology relation and key node status information of foundation, each traveling wave detector of automatic detection
The communications status of device, it is associated and compares according to business datum state and network management data state, analyzes fault type, if
Webmaster state is normal and service condition is abnormal, and failure cause is traveling wave detector device part, if webmaster state and business shape
State is abnormal, and failure cause is communications portion；Then communications portion determines failure further according to the status information of each key node
Specific node；
Step 235, according to the failure cause of determination and position, carry out repairing traveling wave detector device and power distribution automation main station
Communication link between system.
This implementation can be actively discovered using a kind of communication failure localization method, be analyzed failure, provide analysis knot automatically
Fruit, the specific trouble point of positioning, not only ensure that the good communication shape between traveling wave detector device and power distribution automation main station system
Condition, and substantially reduce trouble shoot positioning time, reduce communication failure maintenance cost.
Fig. 2 is a kind of block diagram of the fault diagnosis system of transmission line of electricity according to an exemplary embodiment.Such as Fig. 2 institutes
Show, the fault diagnosis system of the transmission line of electricity can include：
Traveling wave detector device, for installed in transmission line of electricity, the failure of each transmission line of electricity to be recorded when collection is broken down
Wave number evidence；
Wireless communication system, the fault recorder data for traveling wave detector device to be gathered to each transmission line of electricity, which is sent to, matches somebody with somebody
Electric automation main station system；
First object faulty line module, for calculating corresponding distribution wire according to the fault recorder data of each transmission line of electricity
The transient zero-sequence current amplitude on road, the distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Second target faults line module, for calculating corresponding distribution wire according to the fault recorder data of each transmission line of electricity
The opposite polarity distribution line of the transient current polarity on road, selection and other distribution lines is as the second target faults circuit；
Faulty line determining module, to be contrasted to first object faulty line and the second target faults circuit, such as
Fruit first object faulty line and the second target faults circuit are same distribution line, it is determined that the distribution line is fault wire
Road.
The technical scheme of the present embodiment include traveling wave detector device, wireless communication system, first object faulty line module,
Second target faults line module and faulty line determining module, it is each defeated when being broken down using the collection of traveling wave detector device
The fault recorder data of electric line, and pass through first object faulty line module, the second target faults line module and fault wire
Road determining module is determined faulty line, by the fault recorder data that gets can fast positioning faulty line, realize
The fast positioning of faulty line, reduces the loss of manpower and materials.
Fig. 3 is a kind of flow chart of the fault diagnosis localization method of transmission line of electricity according to an exemplary embodiment.
As shown in figure 3, the fault diagnosis localization method of the transmission line of electricity may comprise steps of：
Step S1, the travelling wave signal detection means of some equidistantly distributeds is installed on transmission line of electricity；
Step S2, travelling wave signal detection means is sent out travelling wave signal data are gathered by communication when breaking down
Give power distribution automation main station system；
Step S3, the travelling wave signal data meter that power distribution automation main station system gathers according to each travelling wave signal detection means
Calculate the location of distribution line failure.
The technical scheme of the present embodiment detects dress by some travelling wave signals installed in equidistantly distributed on transmission line of electricity
Put travelling wave signal data when collection is broken down, and the position according to residing for the travelling wave signal data of collection calculate distribution line failure
Put；
In a kind of possible implementation, the detailed process of the step S3 is：It was found that after fault traveling wave signal, find
Travelling wave signal detection means Q corresponding to the fault traveling wave signaliAnd travelling wave signal detection means Q adjacent theretoi+1It is corresponding
Second fault traveling wave signal, determine that failure place exists after analyzing respectively fault traveling wave signal and the second fault traveling wave signal
Position.This implementation can quickly and accurately calculate abort situation by both-end travelling wave positioning method.
It is described that fault traveling wave signal and the second fault traveling wave signal are divided respectively in a kind of possible implementation
The process of analysis is：
The transient zero-sequence current amplitude per phase distribution line is calculated according to fault traveling wave signal first；Select transient zero-sequence electricity
The phase distribution line for flowing amplitude maximum is target faults circuit；
Then the transient zero-sequence current amplitude per phase distribution line is calculated according to the second fault traveling wave signal；Judge transient state zero
Whether the maximum phase distribution line of sequence current amplitude is target faults circuit, and if it is the phase distribution line is fault wire
Road, and judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
This implementation is combined to failure by using the positioning of both-end traveling wave and transient zero-sequence current amplitude features method
Differentiated and positioned, can not only quick diagnosis be out of order circuit and abort situation, and fault distinguishing is accurate, positioning accurate
Really.
The implementation alternatively possible as the present embodiment, it is described to fault traveling wave signal and the second fault traveling wave signal
The process analyzed respectively is：
The transient current polarity per phase distribution line is calculated according to fault traveling wave signal first；Selection and other distribution lines
Opposite polarity phase distribution line be target faults circuit；
Then the transient current polarity per phase distribution line is calculated according to the second fault traveling wave signal；Judge and other distribution
Whether the opposite polarity phase distribution line of circuit is target faults circuit, and if it is the phase distribution line is fault wire
Road, and judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
This implementation is combined to failure by using using the positioning of both-end traveling wave and transient current polarity discriminating method
Differentiated and positioned, can not only quick diagnosis be out of order circuit and abort situation, and fault distinguishing is accurate, positioning accurate
Really.
Fig. 4 is a kind of block diagram of the fault diagnosis alignment system of transmission line of electricity according to an exemplary embodiment.Such as
Shown in Fig. 4, the fault diagnosis alignment system of the transmission line of electricity can include：
Travelling wave signal detection means, transmission line of electricity is arranged on for equidistantly distributed, collection is each defeated when breaking down
The fault recorder data of electric line；
Wireless communication system, the fault recorder data for detection means to be gathered to each transmission line of electricity are sent to distribution certainly
Dynamicization main station system；
Power distribution automation main station system, the travelling wave signal data for being gathered according to each travelling wave signal detection means calculate
The location of distribution line failure.
The technical scheme of the present embodiment includes travelling wave signal detection means, wireless communication system and power distribution automation main station system
System, travelling wave signal data when it is broken down using the collection of travelling wave signal detection means, by wireless communication system by collection
Travelling wave signal data are sent to power distribution automation main station system, and power distribution automation main station system is according to the travelling wave signal data of collection
Calculate the location of distribution line failure；Travelling wave signal data for being gathered according to each travelling wave signal detection means calculate
The location of distribution line failure, by both-end travelling wave positioning method, abort situation can be quickly and accurately calculated, is passed through
The fault recorder data got can quickly and accurately determine the position of failure point of transmission line of electricity, ensure that power system
Safety and stability and economical operation.
Simply the preferred embodiment of the present invention described above, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection domain.
Claims (10)
1. a kind of method for diagnosing faults of transmission line of electricity, it is characterized in that, comprise the following steps：
Step 1, the traveling wave detector device for detecting travelling wave signal is installed on transmission line of electricity；
Step 2, traveling wave detector device gathers the fault recorder data of each transmission line of electricity and passes through radio communication when breaking down
Mode is sent to power distribution automation main station system；
Step 3, the transient zero-sequence current amplitude of corresponding distribution line, choosing are calculated according to the fault recorder data of each transmission line of electricity
The distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Step 4, calculate the transient current polarity of corresponding distribution line according to the fault recorder data of each transmission line of electricity, selection with
The opposite polarity distribution line of other distribution lines is as the second target faults circuit；
Step 5, if first object faulty line and the second target faults circuit are same distribution line, it is determined that the distribution wire
Road is faulty line.
2. a kind of method for diagnosing faults of transmission line of electricity as claimed in claim 1, it is characterized in that, the specific mistake of the step 2
Journey comprises the following steps：
Step 21, traveling wave detector device gathers fault recorder data and the storage of each transmission line of electricity；
Step 21, the communication conditions between traveling wave detector device and power distribution automation main station system are monitored, if communication is normal
Into step 24, otherwise into step 23,
Step 23, carry out communication failure positioning and repair the communication chain between traveling wave detector device and power distribution automation main station system
Road；
Step 24, the fault recorder data for gathering each transmission line of electricity is sent to by traveling wave detector device by communication
Power distribution automation main station system.
3. a kind of method for diagnosing faults of transmission line of electricity as claimed in claim 2, it is characterized in that, the specific mistake of the step 23
Journey comprises the following steps：
Step 231, the wireless module service communication state of traveling wave detector device, the wireless module of radio communication network management system are obtained
Webmaster state, SIM card state, base station state information, and the state and positional information of power distribution automation main station system；
Step 232, it is logical according to the up-downgoing data flow to be communicated between traveling wave detector device and power distribution automation main station system, analysis
Believe path, the path and annexation that extraction packet passes through, establish the topological relation of a network communication path, utilize simultaneously
The Network Topology Discovery algorithm that three kinds of snmp protocol, ICMP agreements and ARP protocol agreements are combined, finds cordless communication network
The configuration information of link layer network topology and extraction network；
Step 233, by describing the key node facility information and IP address information of communication path, entered by the way of ping bags
Row network gathers key node status information, and the key node state is including on State Grid Corporation of China's fire wall, communication path
Router, key node state inside mobile operator；
Step 234, according to the communication topology relation and key node status information of foundation, each traveling wave detector device of automatic detection
Communications status, be associated and compare according to business datum state and network management data state, analyze fault type, if webmaster
State is normal and service condition is abnormal, and failure cause is traveling wave detector device part, if webmaster state and service condition are equal
Abnormal, failure cause is communications portion；Then communications portion determines the tool of failure further according to the status information of each key node
Body node；
Step 235, according to the failure cause of determination and position, carry out repairing traveling wave detector device and power distribution automation main station system
Between communication link.
4. a kind of method for diagnosing faults of transmission line of electricity as claimed in claim 3, it is characterized in that, in step 232, described point
The detailed process for analysing communication path is the second layer and third layer information of analysis ISO 7 layers of standard agreement models of network.
5. a kind of fault diagnosis system of transmission line of electricity, it is characterized in that, including：
Traveling wave detector device, for installed in transmission line of electricity, the fault recorder of each transmission line of electricity when collection is broken down
According to；
Wireless communication system, the fault recorder data for traveling wave detector device to be gathered to each transmission line of electricity are sent to distribution certainly
Dynamicization main station system；
First object faulty line module, for calculating corresponding distribution line according to the fault recorder data of each transmission line of electricity
Transient zero-sequence current amplitude, the distribution line for selecting transient zero-sequence current amplitude maximum is first object faulty line；
Second target faults line module, for calculating corresponding distribution line according to the fault recorder data of each transmission line of electricity
The opposite polarity distribution line of transient current polarity, selection and other distribution lines is as the second target faults circuit；
Faulty line determining module, to be contrasted to first object faulty line and the second target faults circuit, if the
One target faults circuit and the second target faults circuit are same distribution line, it is determined that the distribution line is faulty line.
6. a kind of fault diagnosis localization method of transmission line of electricity, it is characterized in that, comprise the following steps：
Step S1, the travelling wave signal detection means of some equidistantly distributeds is installed on transmission line of electricity；
Step S2, travelling wave signal detection means is sent to travelling wave signal data are gathered by communication when breaking down
Power distribution automation main station system；
Step S3, the travelling wave signal data that power distribution automation main station system gathers according to each travelling wave signal detection means, which calculate, matches somebody with somebody
The location of line fault.
7. a kind of fault diagnosis localization method of transmission line of electricity as claimed in claim 6, it is characterized in that, the tool of the step S3
Body process is：It was found that after fault traveling wave signal, travelling wave signal detection means Q corresponding to the fault traveling wave signal is foundiAnd with
Adjacent travelling wave signal detection means Qi+1Corresponding second fault traveling wave signal, to fault traveling wave signal and the second failed row
Ripple signal determines position at failure after being analyzed respectively.
8. a kind of fault diagnosis localization method of transmission line of electricity as claimed in claim 7, it is characterized in that, it is described to fault traveling wave
The process that signal and the second fault traveling wave signal are analyzed respectively is：
The transient zero-sequence current amplitude per phase distribution line is calculated according to fault traveling wave signal first；Select transient zero-sequence current width
The maximum phase distribution line of value is target faults circuit；
Then the transient zero-sequence current amplitude per phase distribution line is calculated according to the second fault traveling wave signal；Judge transient zero-sequence electricity
Whether the phase distribution line for flowing amplitude maximum is target faults circuit, and if it is the phase distribution line is faulty line, and
Judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
9. a kind of fault diagnosis localization method of transmission line of electricity as claimed in claim 7, it is characterized in that, it is described to fault traveling wave
The process that signal and the second fault traveling wave signal are analyzed respectively is：
The transient current polarity per phase distribution line is calculated according to fault traveling wave signal first；Selection and the pole of other distribution lines
Property an opposite phase distribution line be target faults circuit；
Then the transient current polarity per phase distribution line is calculated according to the second fault traveling wave signal；Judge and other distribution lines
Opposite polarity phase distribution line whether be target faults circuit, if it is the phase distribution line is faulty line, and
Judge travelling wave signal detection means QiWith travelling wave signal detection means Qi+1Between distribution line section be abort situation.
10. a kind of fault diagnosis alignment system of transmission line of electricity, it is characterized in that, including：
Travelling wave signal detection means, transmission line of electricity, each power transmission line when collection is broken down are arranged on for equidistantly distributed
The fault recorder data on road；
Wireless communication system, the fault recorder data for detection means to be gathered to each transmission line of electricity are sent to power distribution automation
Main station system；
Power distribution automation main station system, the travelling wave signal data for being gathered according to each travelling wave signal detection means calculate distribution
The location of line fault.
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| CN108287286A (en) * | 2018-01-16 | 2018-07-17 | 济南置真电气有限公司 | A kind of polarity check method based on singlephase earth fault recorder data |
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| CN112526293A (en) * | 2020-12-30 | 2021-03-19 | 北京合锐赛尔电力科技股份有限公司 | Distribution line online fault monitoring device, system and method |
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| CN108287286A (en) * | 2018-01-16 | 2018-07-17 | 济南置真电气有限公司 | A kind of polarity check method based on singlephase earth fault recorder data |
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