CN110221174A - A kind of tuning on-line device and method of transmission line malfunction - Google Patents
A kind of tuning on-line device and method of transmission line malfunction Download PDFInfo
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- CN110221174A CN110221174A CN201910543704.6A CN201910543704A CN110221174A CN 110221174 A CN110221174 A CN 110221174A CN 201910543704 A CN201910543704 A CN 201910543704A CN 110221174 A CN110221174 A CN 110221174A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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Abstract
The present invention relates to a kind of tuning on-line device and method of transmission line malfunction, described device includes: one end that distance host and coupled signal acquisition process and impulse ejection control unit, signal acquisition process cell signal acquisition process and impulse ejection control unit are set to transmission line of electricity, emits when for failure and receives calibration pulse and extract the fault-signal at the transmission line of electricity end；Signal acquisition process unit is set to the other end of transmission line of electricity, for receiving calibration pulse and extracting transmission line malfunction signal；Distance host completes timing synchronization and data processing, realizes fault location.The method regard fault-signal itself as trigger signal, using the method for transmitting calibration pulse, calibration pulse is avoided to be submerged in the biggish fault-signal of amplitude, makes both-end timing synchronization, and then obtains fault-signal and reach the time difference of both-end to calculate abort situation.Tuning on-line error of the present invention is small, positioning is at low cost.
Description
Technical field
The present invention relates to transmission line malfunction tuning on-line field, exist more particularly, to a kind of transmission line malfunction
Line positioning device and method.
Background technique
With power transmission cable and overhead line quantity increase and the extension of runing time, their failure occur also more
It is frequent；Accurate abort situation is rapidly calculated, the repairing for live route gains time, and debugs in time, this is right
It is significant using department in power supply；In recent years, industry proposes the Dual-Ended Loop Test method based on GPS to carry out determining for failure
Position provides both-end clock using GPS and synchronizes, realizes the extraction of failure wave head arrival time, then reach both ends by fault traveling wave
Time difference and velocity of wave calculate abort situation.
But due to the influence of meteorological and geographical conditions etc. it some times happens that time service GPS signal is unstable, both ends clocking error
Greatly, lead to the operating cost that system in addition undoubtedly can be also increased using GPS.
Summary of the invention
The present invention is to overcome that the tuning on-line error of transmission line malfunction described in the above-mentioned prior art is big, positioning is at high cost
Defect, a kind of tuning on-line device and method of transmission line malfunction are provided.
Described device includes: signal acquisition process and impulse ejection control unit, signal acquisition process unit, long-range master
Machine；Signal acquisition process and impulse ejection control unit, signal acquisition process unit are connected with distance host respectively；
Signal acquisition process and impulse ejection control unit, signal acquisition process unit are respectively arranged on the two of transmission line of electricity
End；Signal acquisition process and impulse ejection control unit are set to one end of transmission line of electricity, are used to emitting and receiving calibration when failure
Pulse and the fault-signal (fault-signal is fault current travelling wave signal) for extracting transmission line of electricity, and the calibration arteries and veins that will be received
It rushes signal and fault-signal is sent to distance host；Signal acquisition process unit is set to the other end of transmission line of electricity, for connecing
Close alignment pulse and the fault-signal for extracting transmission line of electricity, and the calibration pulse signal and fault-signal that receive are sent to far
Journey host；
What distance host reception signal acquisition process and impulse ejection control unit and the transmission of signal acquisition process unit came
Pulse matching signal and fault-signal, and timing synchronization and data processing are carried out, realize fault location.
Preferably, signal acquisition process and impulse ejection control unit include: the first receiving coil, impulse ejection coil,
First signal conditioning circuit, the first data collecting card, delay trigger circuit, impulse ejection circuit, first microprocessor；
First receiving coil and impulse ejection coil are set on transmission line of electricity, and impulse ejection coil receives line close to first
Circle setting, ignores so that calibration pulse is issued to the time that the first receiving coil receives from impulse sender；
First receiving coil is connect with the input terminal of the first signal conditioning circuit, the output end point of the first signal conditioning circuit
It is not connect with the input terminal of the input terminal of the first data collecting card, delay circuit；
The output end of first data collecting card and the input terminal of first microprocessor connect；The output end of first microprocessor
It is connect with distance host；
The output end of delay trigger circuit is connect with the input terminal of impulse ejection circuit；The output end of impulse ejection circuit with
The connection of impulse ejection coil；
The transmitting of impulse ejection circuit control pulse signal；
First receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
First signal adjustment circuit receives the signal come to the first receiving coil and is adjusted；
First data collecting card is for acquiring the calibration pulse signal from transmitting coil that the first receiving coil receives
And the fault-signal propagated in transmission line of electricity；
First microprocessor integrates data acquisition, data processing, data management.
Preferably, delay trigger circuit sends signal to impulse ejection circuit sending signal from signal conditioning circuit is received
Delay time be 60ms.
Preferably, signal acquisition process unit includes the second receiving coil, second signal conditioning circuit, second signal acquisition
Card, the second microprocessor；
Second receiving coil is set on transmission line of electricity, and the input terminal of the second receiving coil and second signal conditioning circuit connects
It connects, the output end of second signal conditioning circuit is connect with the input terminal of the second data collecting card, the output of the second data collecting card
End is connect with the input terminal of the second microprocessor, and the output end of the second microprocessor is connect with distance host；
Second receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
Second signal adjustment circuit receives the signal come to the second receiving coil and is adjusted；
Second data collecting card is for acquiring the calibration pulse signal from transmitting coil that the second receiving coil receives
And the fault-signal propagated in transmission line of electricity；
Second microprocessor integrates data acquisition, data processing, data management.
Preferably, the first receiving coil, the second receiving coil basic structure be the Roche line based on Ampere's law coiling
Circle.
Preferably, distance host is connect with first microprocessor, the second microprocessor by wireless communication respectively.
Preferably the first data collecting card and the second data collecting card are 5242 two-channel digital oscillograph of Picoscope.
First microprocessor and the second microprocessor are CTN-BA0135G single-borad computer；The acquisition of single-borad computer collection data, place
Reason, management are communicated in one, and with wireless network and distance host.
Pulse transmitting coil, the first receiving coil are placed in one end of transmission line of electricity in device of the present invention, and second receives
Coil is placed in one end of another transmission line of electricity, and impulse ejection coil makes both-end timing synchronization for transmitting calibration pulse；Signal acquisition
Processing and impulse ejection control unit are used to record the fault current letter for reaching signal acquisition process and impulse ejection control unit
Number and calibration pulse signal and control calibration pulse Time-delayed trigger；Signal acquisition process unit is adopted for recording arriving signal
Collect fault-signal and the calibration pulse of processing unit；Distance host is for receiving both ends detection signal and calculating abort situation.
The method is applied to the tuning on-line device of the transmission line malfunction, the described method comprises the following steps:
First receiving coil and impulse sender: being placed in one end of transmission line of electricity by S1, and the second receiving coil is placed in transmission of electricity
The other end of route, and the first receiving coil, the second receiving coil are kept it turned on；
S2: when transmission line malfunction occurs, fault-signal is propagated to transmission line of electricity both ends, signal acquisition process and pulse hair
It penetrates control unit and signal acquisition process unit records fault-signal respectively, in signal acquisition process and impulse ejection control unit
Delay circuit delay 60ms after transmit give impulse ejection circuit control impulse ejection coil transmissions calibration pulse；At signal acquisition
Reason and impulse ejection control unit and signal acquisition process unit successively receive and record calibration pulse；
S3: signal acquisition process and impulse ejection control unit and signal acquisition process unit are respectively to be recorded failure letter
Number moment is respective zero starting point, chooses 100ms time window, is detection signal with the signal in time window, wraps simultaneously in time window
Containing fault-signal and calibration pulse；
S4: signal acquisition process and impulse ejection control unit and signal acquisition process unit respectively believe respective detection
Number distance host is reached by wireless network, the detection signal that signal acquisition process and impulse ejection control unit are recorded is to connect
Receiving calibration pulse time is zero moment；Velocity of wave is v in transmission line of electricity, is transmitted electricity between the first receiving coil and the second receiving coil
Line length is l, signal acquisition process unit record to the zero moment of detection signal be to receive calibration pulse time to subtract arteries and veins
Propagation time l/v is rushed, at this point, two detection signal zero moments are synchronization, that is, the emission time of pulse is calibrated, when realizing
Sequence is synchronous；
S5: after realizing timing synchronization, difference at the time of reaching both ends by extracting fault-signal calculates fault bit
Set the distance to the first receiving coil.
Preferably, the concrete operations of S4 are as follows:
(1) time that the first receiving coil of signal receives fault-signal is calculated:
t1=tA1-tA2
Wherein, tA1At the time of being that fault-signal reaches the first receiving coil, tA2It is that calibration pulse is connect by the first receiving coil
At the time of receipts, the emission time of pulse is also calibrated.
(2) timing synchronization: pulse time Forward △ is detected receiving in the detection signal of signal acquisition process unit record
t1=l/v, using the moment as time zero starting point, wherein transmission line of electricity overall length is l, and the velocity of wave in transmission line of electricity is v；In this way
Signal acquisition process and impulse ejection control unit are identical with the zero moment of signal acquisition process unit, and clock, which is realized, to be synchronized；And
Calculate the time that the second receiving coil receives fault-signal:
t2=tB1-tB2+t3
t3=Δ t1=l/v
Wherein, tB1At the time of being that fault-signal reaches the second receiving coil, tB2It is that calibration the second receiving coil of pulse receives
At the time of.
Under this clock, t2At the time of receiving fault-signal for the second receiving coil, t3It is received for the second receiving coil
At the time of calibrating pulse.
Preferably, in S5 abort situation to the first receiving coil distance calculation formula are as follows:
Wherein, d is distance of the abort situation to the first receiving coil.
The method of the invention regard fault-signal itself as trigger signal, utilizes the side of Time-delayed trigger transmitting calibration pulse
Method avoids calibration pulse from being submerged in the biggish fault-signal of amplitude, makes both-end timing synchronization, and then obtains fault-signal and reach
The time difference of both-end calculates abort situation.
Compared with prior art, the beneficial effect of technical solution of the present invention is: apparatus cost of the present invention is low, work can
It leans on, is easy to operate, being widely portable to the on-line monitoring of all kinds of overhead lines and power transmission cable failure, can be realized the accurate of failure
Positioning；
Compared with existing GPS type both-end time synchronization fault locator, not caused by by meteorological and geographical conditions
The unstable influence of GPS signal, can be effectively reduced the error of tuning on-line；GPS system is not used to propose this patent yet simultaneously
Device operating cost substantially reduce；
Algorithm complexity in the method for the invention is lower, can quickly complete mentioning for detection signal after the failure occurred
The calculating with abort situation is taken, is gained time for breakdown repair.
Detailed description of the invention
Fig. 1 is the tuning on-line schematic device of transmission line malfunction described in the present embodiment.
Fig. 2 is the basic structure schematic diagram of the first receiving coil, the second receiving coil.
Fig. 3 is the detection of synchronous front signal acquisition process and impulse ejection control unit and signal acquisition process unit record
The schematic diagram of signal.
Fig. 4 is the detection for synchronizing rear signal acquisition process and impulse ejection control unit and signal acquisition process unit record
The schematic diagram of signal.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
Embodiment 1
The present embodiment provides a kind of tuning on-line devices of transmission line malfunction, as shown in Figure 1, described device includes: letter
Number acquisition process and impulse ejection control unit, signal acquisition process unit, distance host；Signal acquisition process and impulse ejection
Control unit, signal acquisition process unit are connected with distance host respectively；
Signal acquisition process and impulse ejection control unit, signal acquisition process unit are respectively arranged on the two of transmission line of electricity
End；Signal acquisition process and impulse ejection control unit are set to one end of transmission line of electricity, are used to emitting and receiving calibration when failure
Pulse and the fault-signal (fault-signal is fault current travelling wave signal) for extracting transmission line of electricity, and the calibration arteries and veins that will be received
It rushes signal and fault-signal is sent to distance host；Signal acquisition process unit is set to the other end of transmission line of electricity, for connecing
Close alignment pulse and the fault-signal for extracting transmission line of electricity, and the calibration pulse signal and fault-signal that receive are sent to far
Journey host；
What distance host reception signal acquisition process and impulse ejection control unit and the transmission of signal acquisition process unit came
Pulse matching signal and fault-signal, and timing synchronization and data processing are carried out, realize fault location.
Signal acquisition process and impulse ejection control unit include: the first receiving coil, impulse ejection coil, the first signal
Conditioning circuit, the first data collecting card, delay trigger circuit, impulse ejection circuit, first microprocessor；
First receiving coil and impulse ejection coil are set on transmission line of electricity, and impulse ejection coil receives line close to first
Circle setting, the two position is closer, and the time that calibration pulse is received from impulse ejection to the first receiving coil is negligible.
First receiving coil is connect with the input terminal of the first signal conditioning circuit, the output end point of the first signal conditioning circuit
It is not connect with the input terminal of the input terminal of the first data collecting card, delay circuit；
The output end of first data collecting card and the input terminal of first microprocessor connect；The output end of first microprocessor
It is connect with distance host；
The output end of delay trigger circuit is connect with the input terminal of impulse ejection circuit；The output end of impulse ejection circuit with
The connection of impulse ejection coil；
The transmitting of impulse ejection circuit control pulse signal；
First receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
First signal adjustment circuit receives the signal come to the first receiving coil and is adjusted；
First data collecting card is for acquiring the calibration pulse signal from transmitting coil that the first receiving coil receives
And the fault-signal propagated in transmission line of electricity；
First microprocessor integrates data acquisition, data processing, data management.
Delay trigger circuit sends signal to the delay to impulse ejection circuit sending signal from signal conditioning circuit is received
Time is 60ms.
Signal acquisition process unit includes the second receiving coil, second signal conditioning circuit, second signal capture card, second
Microprocessor；
Second receiving coil is set on transmission line of electricity, and the input terminal of the second receiving coil and second signal conditioning circuit connects
It connects, the output end of second signal conditioning circuit is connect with the input terminal of the second data collecting card, the output of the second data collecting card
End is connect with the input terminal of the second microprocessor, and the output end of the second microprocessor is connect with distance host；
Second receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
Second signal adjustment circuit receives the signal come to the second receiving coil and is adjusted；
Second data collecting card is for acquiring the calibration pulse signal from transmitting coil that the second receiving coil receives
And the fault-signal propagated in transmission line of electricity；
Second microprocessor integrates data acquisition, data processing, data management.
First receiving coil, the second receiving coil, impulse ejection coil basic structure be based on Ampere's law coiling
Rogowski coil.
Distance host is connect with first microprocessor, the second microprocessor by wireless communication respectively.
First data collecting card and the second data collecting card are 5242 two-channel digital oscillograph of Picoscope.
First microprocessor and the second microprocessor are CTN-BA0135G single-borad computer；The acquisition of single-borad computer collection data, place
Reason, management are communicated in one, and with wireless network and distance host
After equipment brings into operation, the first receiving coil, the second receiving coil are all in the state for receiving signal, failure hair
After life, fault-signal is propagated to transmission line of electricity both ends；At this point, one end and the second receiving coil place where the first receiving coil
One end clock it is not identical, need it is synchronous after could determine abort situation by the fault-signal arrival both ends time difference；
Methods different from existing GPS both-end synchronous method, that the present embodiment described device calibrates pulse using delay emission；In failure
After generation within about 2~3 cycles, line protective devices will be acted, and faulty section is cut off from route；Fault-signal amplitude compared with
Greatly, calibration impulse ejection can be submerged in fault-signal too early, therefore, with fault-signal sheet as trigger signal, touched
Be delayed the pulse of 60ms transmitting calibration after hair, and signal acquisition process and impulse ejection control unit connect while transmitting calibration pulse
Calibration pulse is received, also signal acquisition process unit receives after the propagation of entire route for pulse.Signal acquisition process and arteries and veins
Rushing emission controlling unit and signal acquisition process unit will be in the 100ms time window comprising fault-signal and calibration pulse signal
Sampled data is uploaded to distance host as detection signal, and distance host is completed to carry out timing synchronization, data processing and fault point
Location Calculation.
In addition, the basic structure of the first receiving coil, the second receiving coil described in the present embodiment is based on Ampere ring road
The Rogowski coil of law coiling, as shown in Figure 2.When breaking down in overhead line or power transmission cable, fault-current signal passes through
Line propagation to the position for being equipped with Rogowski coil measurement sensor, current signal can be produced in overhead line or cable surrounding space
Raw corresponding magnetic field, Rogowski coil winding sense the magnetic field and generate an induced voltage, the voltage direct ratio in coil termination
The differential value of the current signal flowed through at this therefore, can as long as connecting an integrating circuit after the coil termination
Measure the signal of discharge current at this.
The integrating circuit of Rogowski coil can use outer integrating circuit, can also use from integrating circuit；By analysis, originally
Invention can be using more simply and easily restoring tested current waveform from integral way.
Embodiment 2
The present embodiment provides a kind of tuning on-line method of transmission line malfunction, the method is applied to described in embodiment 1
Device, the described method comprises the following steps:
First receiving coil and impulse sender: being placed in one end of transmission line of electricity by S1, and the second receiving coil is placed in transmission of electricity
The other end of route, and the first receiving coil, the second receiving coil are kept it turned on；
S2: after failure occurs, fault-signal is propagated in the form of traveling wave from fault point to transmission line of electricity both ends, signal acquisition
Waveform, signal acquisition process and impulse ejection is recorded in processing and impulse ejection control unit, signal acquisition process unit respectively
Delay trigger circuit in control unit is triggered by fault-signal, and be delayed the pulse of 60ms transmitting calibration, signal acquisition process and
Calibration pulse is successively recorded in impulse ejection control unit and signal acquisition process unit；
S3: signal acquisition process and impulse ejection control unit and signal acquisition process unit are first respectively to be recorded failure
The signal moment is respective zero starting point, chooses 100ms time window, and the signal in time window is to detect signal, in time window simultaneously
Include fault-signal and calibration pulse；
S4: detection signal reaches distance host, signal acquisition process and impulse ejection control unit note by wireless network
The detection signal recorded is to receive calibration pulse time as zero moment；Velocity of wave is known as v, the first receiving coil in transmission line of electricity
And second the length of transmission line of electricity between receiving coil be known as l, the zero of the detection signal that signal acquisition process unit record is arrived
Moment is to receive calibration pulse time to subtract pulse propagation time l/v, and two detection signal zero moments are synchronization, that is, are calibrated
The emission time of pulse, realizes timing synchronization；
S5: after realizing timing synchronization, difference at the time of reaching both ends by extracting fault-signal calculates fault bit
It sets with a distance from the first receiving coil.
Specific calculating of the abort situation with a distance from the first receiving coil is as follows:
As shown in figure 3, Fig. 3 is synchronous front signal acquisition process and impulse ejection control unit and signal acquisition process unit
The schematic diagram of the detection signal of record；tA1At the time of being that fault-signal reaches the first receiving coil, tA2It is calibration pulse by first
At the time of receiving coil receives, the emission time of pulse is also calibrated.
tB1At the time of being that fault-signal reaches the second receiving coil, tB2When being that calibration the second receiving coil of pulse is received
It carves.
As shown in figure 4, Fig. 4 is to synchronize rear signal acquisition process and impulse ejection control unit and signal acquisition process unit
The schematic diagram of the detection signal of record；Signal acquisition process and impulse ejection control unit will receive calibration pulse i.e. school
The quasi- impulse ejection moment is as time zero starting point, under this clock, t1At the time of receiving fault-signal for the first receiving coil,
Then:
t1=tA1-tA2
Pulse time Forward Δ t is detected receiving in the detection signal of signal acquisition process unit record1=l/v, Δ t1For
Signal leading is detected, using the moment as time zero starting point, wherein l is cable overall length, and v is the velocity of wave in cable；Believe in this way
Number acquisition process and impulse ejection control unit are identical with the zero moment of signal acquisition process unit, and clock, which is realized, to be synchronized.
Under this clock, t2At the time of receiving fault-signal for the second receiving coil, t3It is received for the second receiving coil
At the time of calibrating pulse；
Thus:
t3=Δ t1=l/v
t2-t3=tB1-tB2
After timing synchronization, fault-signal arriving signal acquisition process and impulse ejection control unit can be calculated and signal is adopted
Collect the time difference of processing unit are as follows:
t1-t2=tA1-tA2-tB1+tB2-l/v
Abort situation passes through formula from the first receiving coil distance dIt is calculated.
The same or similar label correspond to the same or similar components；
The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (9)
1. a kind of tuning on-line device of transmission line malfunction, which is characterized in that described device includes: signal acquisition process and arteries and veins
Rush emission controlling unit, signal acquisition process unit, distance host；Signal acquisition process and impulse ejection control unit, signal
Acquisition process unit is connected with distance host respectively；
Signal acquisition process and impulse ejection control unit, signal acquisition process unit are respectively arranged on the both ends of transmission line of electricity；Letter
Number acquisition process and impulse ejection control unit are set to one end of transmission line of electricity, be used to emit when failure and receive calibration pulse with
And fault-signal, and the calibration pulse signal and fault-signal that receive are sent to distance host；Signal acquisition process unit
It is set to the other end of transmission line of electricity, for receiving calibration pulse and extracting fault-signal, and the calibration pulse received is believed
Number and fault-signal be sent to distance host；
The pulse that distance host receives signal acquisition process and impulse ejection control unit and the transmission of signal acquisition process unit comes
Calibration signal and fault-signal, and timing synchronization and data processing are carried out, realize fault location.
2. the tuning on-line device of transmission line malfunction according to claim 1, which is characterized in that signal acquisition process and
Impulse ejection control unit includes: the first receiving coil, impulse ejection coil, the first signal conditioning circuit, the acquisition of the first data
Card, delay trigger circuit, impulse ejection circuit, first microprocessor；
First receiving coil and impulse ejection coil are set on transmission line of electricity, and impulse ejection coil is set close to the first receiving coil
It sets, ignores so that calibration pulse is issued to the time that the first receiving coil receives from impulse sender；
First receiving coil is connect with the input terminal of the first signal conditioning circuit, the output end of the first signal conditioning circuit respectively with
The input terminal connection of the input terminal, delay circuit of first data collecting card；
The output end of first data collecting card and the input terminal of first microprocessor connect；The output end of first microprocessor and remote
The connection of journey host；
The output end of delay trigger circuit is connect with the input terminal of impulse ejection circuit；The output end of impulse ejection circuit and pulse
Transmitting coil connection；
The transmitting of impulse ejection circuit control pulse signal；
First receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
First signal adjustment circuit receives the signal come to the first receiving coil and is adjusted；
First data collecting card be used to acquire the calibration pulse signal that the first receiving coil receives from transmitting coil and
The fault-signal propagated in transmission line of electricity；
First microprocessor integrates data acquisition, data processing, data management.
3. the tuning on-line device of transmission line malfunction according to claim 2, which is characterized in that delay trigger circuit from
Receive signal conditioning circuit send signal to the delay time of impulse ejection circuit sending signal be 60ms.
4. the tuning on-line device of transmission line malfunction according to claim 2, which is characterized in that signal acquisition process list
Member includes the second receiving coil, second signal conditioning circuit, second signal capture card, the second microprocessor；
Second receiving coil is set on transmission line of electricity, and the second receiving coil is connect with the input terminal of second signal conditioning circuit, the
The output end of binary signal conditioning circuit is connect with the input terminal of the second data collecting card, the output end of the second data collecting card and
The input terminal of two microprocessors connects, and the output end of the second microprocessor is connect with distance host；
Second receiving coil is used to receive the pulse signal that fault-signal and impulse ejection circuit issue；
Second signal adjustment circuit receives the signal come to the second receiving coil and is adjusted；
Second data collecting card be used to acquire the calibration pulse signal that the second receiving coil receives from transmitting coil and
The fault-signal propagated in transmission line of electricity；
Second microprocessor integrates data acquisition, data processing, data management.
5. the tuning on-line device of transmission line malfunction according to claim 4, which is characterized in that the first receiving coil,
The basic structure of second receiving coil is the Rogowski coil based on Ampere's law coiling.
6. the tuning on-line device of transmission line malfunction according to claim 4 or 5, which is characterized in that distance host point
It is not connect by wireless communication with first microprocessor, the second microprocessor.
7. a kind of tuning on-line side of the tuning on-line device applied to the described in any item transmission line malfunctions of claim 3-6
Method, which is characterized in that the described method comprises the following steps:
First receiving coil and impulse sender: being placed in one end of transmission line of electricity by S1, and the second receiving coil is placed in transmission line of electricity
The other end, and the first receiving coil, the second receiving coil are kept it turned on；
S2: when transmission line malfunction occurs, fault-signal is propagated to transmission line of electricity both ends, signal acquisition process and impulse ejection control
Unit processed and signal acquisition process unit record fault-signal, prolonging in signal acquisition process and impulse ejection control unit respectively
When circuit delay 60ms after transmit and give the calibration pulse of impulse ejection circuit control impulse ejection coil transmissions；Signal acquisition process and
Impulse ejection control unit and signal acquisition process unit successively receive and record calibration pulse；
S3: signal acquisition process and impulse ejection control unit and signal acquisition process unit respectively fault-signal is recorded when
Carving is respective zero starting point, selection 100ms time window, is detection signal with the signal in time window, simultaneously includes event in time window
Hinder signal and calibration pulse；
S4: signal acquisition process and impulse ejection control unit and signal acquisition process unit respectively lead to respective detection signal
It crosses wireless network and reaches distance host, the detection signal that signal acquisition process and impulse ejection control unit are recorded is to receive
Calibration pulse time is zero moment；Velocity of wave is v, transmission line of electricity between the first receiving coil and the second receiving coil in transmission line of electricity
Length is l, signal acquisition process unit record to the zero moment of detection signal be to receive calibration pulse time and subtract pulse to pass
L/v between sowing time calibrates the emission time of pulse, it is same to realize timing at this point, two detection signal zero moments are synchronization
Step；
S5: after realizing timing synchronization, difference at the time of reaching both ends by extracting fault-signal calculates abort situation and arrives
The distance of first receiving coil.
8. the tuning on-line method of transmission line malfunction according to claim 7, which is characterized in that the concrete operations of S4
Are as follows:
(1) time that the first receiving coil of signal receives fault-signal is calculated:
t1=tA1-tA2
Wherein, tA1At the time of being that fault-signal reaches the first receiving coil, tA2It is that calibration pulse is received by the first receiving coil
Moment also calibrates the emission time of pulse；
(2) timing synchronization: pulse time Forward Δ t is detected receiving in the detection signal of signal acquisition process unit record1=l/
V, using the moment as time zero starting point, wherein transmission line of electricity overall length is l, and the velocity of wave in transmission line of electricity is v；Signal is adopted in this way
Collection processing and impulse ejection control unit are identical with the zero moment of signal acquisition process unit, and clock, which is realized, to be synchronized；And calculate the
Two receiving coils receive the time of fault-signal:
t2=tB1-tB2+t3
t3=Δ t1=l/v
Wherein, tB1At the time of being that fault-signal reaches the second receiving coil, tB2When being that calibration the second receiving coil of pulse is received
It carves；
Under this clock, t2At the time of receiving fault-signal for the second receiving coil, t3Calibration is received for the second receiving coil
At the time of pulse.
9. the tuning on-line method of transmission line malfunction according to claim 8, which is characterized in that abort situation arrives in S5
The calculation formula of the distance of first receiving coil are as follows:
Wherein, d is distance of the abort situation to the first receiving coil.
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