CN107894553A - A kind of power cable device for monitoring and analyzing - Google Patents
A kind of power cable device for monitoring and analyzing Download PDFInfo
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- CN107894553A CN107894553A CN201711082878.4A CN201711082878A CN107894553A CN 107894553 A CN107894553 A CN 107894553A CN 201711082878 A CN201711082878 A CN 201711082878A CN 107894553 A CN107894553 A CN 107894553A
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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
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Locating Faults (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention provides a kind of power cable device for monitoring and analyzing, it includes current sensor, temperature sensor, displacement transducer, integrated front end monitoring device, high-speed figure storage oscillograph, server and signal alarm module, integrated front end monitoring device includes DSP high-speed data acquistion systems, and server includes removal noise suppressed interference module, characteristic parameter extraction module, pattern recognition module, determines fault type module and query display module.The present invention is directed to electric cable with large cross-section temperature-rise effect research under the conditions of typical channel, thermal stress and Study on Thermal Deformation and thermal deformation to the adverse effect of cable insulation, it is proposed a kind of device for being measured to the parameter such as deformation, displacement caused by cable in operation, analyzing simultaneously early warning, find in time due to unusual condition caused by thermomechanical effect, reduce the probability that cable failure caused by thermomechanical effect occurs, reduce the heavy losses brought by high pressure electric cable with large cross-section failure, improve cable reliability of operation.
Description
Technical field
The invention belongs to cable monitoring technical field, more particularly to a kind of power cable device for monitoring and analyzing.
Background technology
The problem of thermomechanical effect is inevitable in Voltage Cable Lines Construction development and application, the event that thermomechanical effect induces
Barrier is as one of major failure reason of high-tension cable.Cable will occur bending repeatedly in the presence of thermomechanical effect and become
Shape, cable metal sheath is produced repeated strain, cause the loss of cable body and its annex, power failure occurs.Particularly
Increasing with the selection of the cross-section of cable, voltage class more and more higher, thermomechanical effect also will increasingly caused by cable
Greatly, if not taking effective counter-measure, cable arch camber, displacement, undue bending or even damage cable can be caused.In order to subtract
Harm of the small thermomechanical effect to cable, reduce cable fault rate, there is provided cable safe and stable operation is horizontal, studies thermomechanical effect
Should be very necessary.
Thermomechanical effect can not possibly take measures to be completely eliminated in construction in theory, and it exists all the time in operation, mesh
Before, the research not being monitored both at home and abroad to operating thermomechanical effect and corresponding device achievement.
The content of the invention
In order to find that the presence of thermomechanical effect avoids it from causing cable fault in time, the present invention is directed to typical channel condition
The lower research of electric cable with large cross-section temperature-rise effect, thermal stress and Study on Thermal Deformation and thermal deformation carry to the adverse effect of cable insulation
Go out it is a kind of the parameter such as deformation, displacement caused by cable in operation is measured, analyze and early warning device, in time find due to
Unusual condition caused by thermomechanical effect, take measures to reduce the probability that cable failure caused by thermomechanical effect occurs, subtract
The small heavy losses brought by high pressure electric cable with large cross-section failure, improve cable reliability of operation.
The present invention is specially a kind of power cable device for monitoring and analyzing, and the power cable device for monitoring and analyzing includes electric current
Sensor, temperature sensor, displacement transducer, integrated front end monitoring device, high-speed figure storage oscillograph, server and signal
Alarm module, the current sensor are used for detection load electric current, and the temperature sensor is used to detect oversheath temperature, described
Displacement transducer is used for the Displacement-deformation amount of detection cable；The integrated front end monitoring device includes DSP high-speed data acquisitions system
System, rectified signal is sent to the DSP high speeds number by the current sensor, the temperature sensor and institute's displacement sensors
According to acquisition system, the DSP high-speed data acquistion systems also have power frequency reference signal；The high-speed figure storage oscillograph point
It is not connected with the current sensor, the temperature sensor and institute's displacement sensors, to the current sensor, the temperature
The detection signal of degree sensor and institute's displacement sensors is shown；The DSP high-speed data acquistion systems are connected to described
High-speed figure storage oscillograph, triggering startup is carried out to the high-speed figure storage oscillograph by trigger signal.The service
Device includes removing noise suppressed interference module, characteristic parameter extraction module, pattern recognition module, determines fault type module and look into
Ask display module, it is described except noise suppressed interference module, it is the characteristic parameter extraction module, the pattern recognition module, described
Determine that fault type module and the query display module are linked in sequence successively；The DSP high-speed data acquistion systems pass through light
Cable is connected to the removal noise suppressed interference module, and rectified signal and power frequency reference signal transmission to the removal noise are pressed down
Interference module processed；The removal noise suppressed interference module is carried out by way of wavelet transformation or FFT to rectified signal
Noise remove；The characteristic parameter extraction module receives the signal transmitted from the removal noise suppressed interference module, and successively
Carry out data statistics, Waveform Matching and wavelet analysis；The pattern recognition module receives to be passed from the characteristic parameter extraction module
The signal come, and signal is identified by ART2 neural network；The determination fault type module is received from the pattern
The pattern-recognition information that identification module transmits, and fault type determination is carried out by expert system；The query display module connects
The fault type information transmitted from the determination fault type module is received, and fault type situation is shown, operating personnel
Also actively the failure situation of cable can be inquired about by the query display module；The determination fault type module also connects
The signal alarm module is connected to, fault type information is sent to the signal alarm module, the signal alarm module root
The alarm signal of respective type is sent according to fault type information.
Further, the temperature sensor is fiber-optical grating temperature sensor.
Further, the power cable device for monitoring and analyzing is used for the flexible arc of transition joint of tunnel Voltage Cable Lines Construction
Monitoring and analysis at position, turning of cable, at cable termination and at snake laying.
Brief description of the drawings
Fig. 1 is a kind of structure composition schematic diagram of power cable device for monitoring and analyzing of the present invention.
Embodiment
A kind of embodiment of power cable device for monitoring and analyzing of the present invention is elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, the power cable device for monitoring and analyzing of the present invention includes current sensor, temperature sensor, displacement
Sensor, integrated front end monitoring device, high-speed figure storage oscillograph, server and signal alarm module, the current sense
Device is used for detection load electric current, and the temperature sensor is used to detect oversheath temperature, and institute's displacement sensors are used to detect electricity
The Displacement-deformation amount of cable；The integrated front end monitoring device includes DSP high-speed data acquistion systems, the current sensor, institute
State temperature sensor and institute's displacement sensors and rectified signal is sent to the DSP high-speed data acquistion systems, the DSP is high
Fast data collecting system also has power frequency reference signal；The high-speed figure storage oscillograph respectively with the current sensor,
The temperature sensor and institute's displacement sensors are connected, to the current sensor, the temperature sensor and the displacement
The detection signal of sensor is shown；The DSP high-speed data acquistion systems are connected to the high-speed figure storage oscillograph,
Triggering startup is carried out to the high-speed figure storage oscillograph by trigger signal.
The server includes removing noise suppressed interference module, characteristic parameter extraction module, pattern recognition module, determination
Fault type module and query display module, it is described except noise suppressed interference module, the characteristic parameter extraction module, the mould
Formula identification module, the determination fault type module and the query display module are linked in sequence successively；The DSP high-speed datas
Acquisition system is connected to the removal noise suppressed interference module by optical cable, by rectified signal and power frequency reference signal transmission extremely
The removal noise suppressed interference module；The removal noise suppressed interference module is by way of wavelet transformation or FFT
Noise remove is carried out to rectified signal；The characteristic parameter extraction module receives to be transmitted from the removal noise suppressed interference module
Signal, and carry out data statistics, Waveform Matching and wavelet analysis successively；The pattern recognition module receives joins from the feature
The signal that number extraction module transmits, and signal is identified by ART2 neural network；The determination fault type module connects
The pattern-recognition information transmitted from the pattern recognition module is received, and fault type determination is carried out by expert system；It is described to look into
Ask display module and receive the fault type information transmitted from the determination fault type module, and fault type situation is shown
Show, operating personnel actively can be also inquired about the failure situation of cable by the query display module；The determination failure
Type block is also connected to the signal alarm module, and fault type information is sent into the signal alarm module, the letter
Number alarm module sends the alarm signal of respective type according to fault type information.
The temperature sensor is fiber-optical grating temperature sensor.
The power cable device for monitoring and analyzing is used for the flexible arc position of transition joint of tunnel Voltage Cable Lines Construction, cable
Monitoring and analysis at turning, cable termination and at snake laying.
Finally it should be noted that only illustrating technical scheme rather than its limitations with reference to above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair to the embodiment of the present invention
Change or equivalent substitution, but these modifications or change are among pending claims are applied for.
Claims (3)
1. a kind of power cable device for monitoring and analyzing, it is characterised in that the power cable device for monitoring and analyzing passes including electric current
Sensor, temperature sensor, displacement transducer, integrated front end monitoring device, high-speed figure storage oscillograph, server and signal report
Alert module, the current sensor are used for detection load electric current, and the temperature sensor is used to detect oversheath temperature, institute's rheme
Displacement sensor is used for the Displacement-deformation amount of detection cable；The integrated front end monitoring device includes DSP high-speed data acquistion systems,
Rectified signal is sent to the DSP high-speed datas by the current sensor, the temperature sensor and institute's displacement sensors
Acquisition system, the DSP high-speed data acquistion systems also have power frequency reference signal；The high-speed figure storage oscillograph difference
It is connected with the current sensor, the temperature sensor and institute's displacement sensors, to the current sensor, the temperature
The detection signal of sensor and institute's displacement sensors is shown；The DSP high-speed data acquistion systems are connected to the height
Speed digital storage oscillograph, triggering startup is carried out to the high-speed figure storage oscillograph by trigger signal；
The server includes removing noise suppressed interference module, characteristic parameter extraction module, pattern recognition module, determines failure
Type block and query display module, it is described except noise suppressed interference module, the characteristic parameter extraction module, the pattern are known
Other module, the determination fault type module and the query display module are linked in sequence successively；The DSP high-speed data acquisitions
System is connected to the removal noise suppressed interference module by optical cable, by rectified signal and power frequency reference signal transmission to described
Remove noise suppressed interference module；The removal noise suppressed interference module is by way of wavelet transformation or FFT to inspection
Ripple signal carries out noise remove；The characteristic parameter extraction module receives the letter transmitted from the removal noise suppressed interference module
Number, and data statistics, Waveform Matching and wavelet analysis are carried out successively；The pattern recognition module is received and carried from the characteristic parameter
The signal that modulus block transmits, and signal is identified by ART2 neural network；The determination fault type module receive from
The pattern-recognition information that the pattern recognition module transmits, and fault type determination is carried out by expert system；The inquiry is aobvious
Show that module receives the fault type information transmitted from the determination fault type module, and fault type situation shown,
Operating personnel actively can be also inquired about the failure situation of cable by the query display module；The determination fault type
Module is also connected to the signal alarm module, and fault type information is sent into the signal alarm module, the signal report
Alert module sends the alarm signal of respective type according to fault type information.
2. a kind of power cable device for monitoring and analyzing according to claim 1, it is characterised in that the temperature sensor is
Fiber-optical grating temperature sensor.
A kind of 3. power cable device for monitoring and analyzing according to claim 2, it is characterised in that the power cable monitoring
Analytical equipment be used for tunnel Voltage Cable Lines Construction transition joint stretch arc position, at turning of cable, it is at cable termination and snakelike
Monitoring and analysis at laying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082878.4A CN107894553B (en) | 2017-11-07 | 2017-11-07 | Power cable monitoring and analyzing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082878.4A CN107894553B (en) | 2017-11-07 | 2017-11-07 | Power cable monitoring and analyzing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107894553A true CN107894553A (en) | 2018-04-10 |
| CN107894553B CN107894553B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711082878.4A Active CN107894553B (en) | 2017-11-07 | 2017-11-07 | Power cable monitoring and analyzing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107894553B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109344359A (en) * | 2018-09-25 | 2019-02-15 | 海南大学 | A kind of sea water anticorrosive cable and its production method, detection method |
| CN110631683A (en) * | 2019-09-26 | 2019-12-31 | 华北水利水电大学 | Building rigid part strain safety monitoring method |
| CN110631682A (en) * | 2019-09-26 | 2019-12-31 | 华北水利水电大学 | Strain safety monitoring method for cable tunnel bearing body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109344359A (en) * | 2018-09-25 | 2019-02-15 | 海南大学 | A kind of sea water anticorrosive cable and its production method, detection method |
| CN110631683A (en) * | 2019-09-26 | 2019-12-31 | 华北水利水电大学 | Building rigid part strain safety monitoring method |
| CN110631682A (en) * | 2019-09-26 | 2019-12-31 | 华北水利水电大学 | Strain safety monitoring method for cable tunnel bearing body |
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| Publication number | Publication date |
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| CN107894553B (en) | 2023-09-26 |
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