CN110514972A - A kind of GIS equipment partial discharge test macro and equipment - Google Patents
A kind of GIS equipment partial discharge test macro and equipment Download PDFInfo
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- CN110514972A CN110514972A CN201910970362.6A CN201910970362A CN110514972A CN 110514972 A CN110514972 A CN 110514972A CN 201910970362 A CN201910970362 A CN 201910970362A CN 110514972 A CN110514972 A CN 110514972A
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
Abstract
The present invention provides a kind of GIS equipment partial discharge test macro and equipment, utilize central processing unit, current sensor, signal processing circuit, A/D conversion module, ultraviolet lens, image capture module, image processing module, display, memory, radio transmitting device and remote monitoring end, GIS partial discharge mode to be measured is identified, image capture module acquires the image information of GIS partial discharge to be measured, central processing unit will be compared by image processing module treated image and standard picture, to identify the shelf depreciation mode of the GIS, and it is detected using high-frequency current signal of the current sensor to GIS equipment partial discharge point to be measured, and it will test result and be transmitted to display and memory, staff can know GIS partial discharge letter to be measured by display Breath, can also obtain GIS partial discharge information to be measured by memory, study convenient for the later period.
Description
Technical field
The present invention relates to technical field of power systems more particularly to a kind of GIS equipment partial discharge test macros and equipment.
Background technique
With the development of the society, electric system is also rapidly developing, network voltage grade is higher and higher, and coverage area is more next
Wider, the safe and reliable operation of power equipment is also more and more important, since power equipment is generally all in outdoor, inevitably
Phenomena such as insulation damages, aging can be generated, shelf depreciation can also generate therewith.Shelf depreciation can be accelerated to Electric Power Equipment Insulation
Damage reduces insulation life, seriously affects the safe operation of equipment.
GIS is switchgear mostly important in electric system.Can the switch inside GIS correctly act, and be power grid energy
The key factor of no safe operation.The GIS switch motion of voltage levels, it is most of to lean on hydraulic-driven or compressed air-driven,
For the normal operation for guaranteeing hydraulic-driven and pneumatics drive system, it is necessary to start by set date motor work done pressurization, to confirm system work
Whether reliable make performance.But it is lacked since the manufacture craft, installation process or O&M of device manufacturer are improper to caused by equipment
It falls into or even air compressor machine damage, causes that driving speed slows down or failure accidents are more and more, seriously threaten power grid stablizes fortune
Row, directly influences the life and production of the people, societal consequence is serious.Local discharge of electrical equipment logging, utilization are advanced
Ultrasonic wave principle and exquisite sensing technology, the hydraulic internal leakage with air compression system of the lively detection of energy, the event of discovery driving in advance
Barrier, and inform that operation maintenance personnel carries out defect elimination in a manner of number and sound, it is ensured that the safe operation of GIS.
The inside switch cabinet partial discharge failure of various regions power plant, the GIS/GCB of substation, power supply bureau and central station of floating dock is more and more, anxious
Suitable detection means is needed to carry out anticipatory maintenance and alarm.Local discharge of electrical equipment logging is happened at that time, GIS/GCB's
Dielectric is different, and the spread speed of inside and outside partial discharge is also different.Detection method or with chromatography or electrical measuring method, not only step
It is trouble, dangerous, it is expensive and real-time detection cannot be done.Electrical operation maintenance personnel is badly in need of a kind of easy to operate, reasonable price and is grasped again
The detection method for making safety carries out spring inspection, autumn inspection and usually predictive maintenance.Local discharge of electrical equipment logging can be complete
Full up foot.
Currently, the detection of GIS partial discharge still rely on ocular estimate carry out shelf depreciation and in conjunction with existing experience come into
Row shelf depreciation mode, this method have certain subjectivity, lack scientific and accuracy, while low efficiency, therefore, need
A kind of more effectively method is wanted to realize GIS partial discharge mode.
Summary of the invention
In order to overcome the deficiencies in the prior art described above, the present invention provides a kind of GIS equipment partial discharge test macro, this
Invention utilizes central processing unit, current sensor, signal processing circuit, A/D conversion module, ultraviolet lens, Image Acquisition
Module, image processing module, display, memory, radio transmitting device and remote monitoring end, to GIS partial discharge to be measured
Mode is identified that the image information of image acquisition device GIS partial discharge to be measured, central processing unit will pass through image
Standard picture in processing unit treated image and memory is compared, to identify the shelf depreciation mode of the GIS,
And it is detected using high-frequency current signal of the current sensor to GIS equipment partial discharge point to be measured, and will test result biography
Display and memory are transported to, staff can know GIS partial discharge information to be measured by display, also can be by depositing
Reservoir obtains GIS partial discharge information to be measured, studies convenient for the later period.
The GIS equipment partial discharge test macro provided according to the present invention includes central processing unit, current sensor, letter
Number processing circuit, A/D conversion module, ultraviolet lens, image capture module, image processing module, display, memory, nothing
Line transmitting device and remote monitoring end.
The output end of current sensor and the input terminal of signal processing circuit connect, the output end and A/ of signal processing circuit
The input terminal of D conversion module connects, and the output end of A/D conversion module and the input terminal of central processing unit connect, Image Acquisition
The input terminal of the output end of module and image processing module connects, the output end of image processing module and central processing unit it is defeated
Enter end connection, the input terminal of the input terminal of display, the input terminal of memory and radio transmitting device is filled with central processing
The output end connection set, the output end of radio transmitting device and the input terminal of remote monitoring end connect, and current sensor is for adopting
Collect the high-frequency current signal of GIS equipment partial discharge point to be measured, image capture module acquires GIS to be measured by ultraviolet lens and sets
The ultraviolet image of standby shelf depreciation.
Preferably, current sensor is used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and will be upper
It states high-frequency current signal and is transmitted to signal processing circuit, signal processing circuit includes signal acquisition unit and signal processing unit,
The output end of current sensor and the input terminal of signal acquisition unit connect, the output end and signal processing list of signal acquisition unit
The input terminal connection of member, the output end of signal processing unit are connect with the input terminal of A/D conversion module.
Preferably, signal acquisition unit includes resistance R1 and filter capacitor C1, wherein the output end of current sensor connects
The both ends of resistance R1 are connected to, the both ends of resistance R1 are connect with the both ends of filter capacitor C1, and resistance R1 is connected with filter capacitor C1
One end draw output end as signal acquisition unit, the other end that resistance R1 is connected with filter capacitor C1 is grounded.
Preferably, the voltage signal after signal processing unit processes is V1, and signal processing unit includes resistance R2-
R8, capacitor C2-C3 and integrated transporting discharging A1-A2；
The output end of signal acquisition unit is connect with one end of resistance R3, and the other end of resistance R3 is same with integrated transporting discharging A1's
The connection of phase input terminal, one end ground connection of resistance R2, the other end of resistance R2 are connect with the inverting input terminal of integrated transporting discharging A1, resistance
The other end of R2 is also connect with one end of resistance R4, and the other end of resistance R4 is connect with the output end of integrated transporting discharging A1, resistance R4
The other end also connect with one end of resistance R5, the other end of resistance R5 is connect with one end of capacitor C2, the other end of resistance R5
It is also connect with one end of resistance R6, the other end ground connection of capacitor C2, the other end of resistance R6 and the anti-phase input of integrated transporting discharging A2
End connection, one end after resistance R7 is in parallel with capacitor C3 are connect with the inverting input terminal of integrated transporting discharging A2, resistance R7 and capacitor C3
The other end after parallel connection is connect with the output end of integrated transporting discharging A2, and one end of resistance R8 and the non-inverting input terminal of integrated transporting discharging A2 connect
It connects, the other end of resistance R8 ground connection, signal processing unit is by the input of treated voltage signal V1 is transmitted to A/D conversion module
End.
Preferably, image processing module includes image smoothing unit, image enhancing unit and image sharpening unit；
The output end of image capture module is connect with the input terminal of image smoothing unit, the output end of image smoothing unit with
The input terminal of image enhancing unit connects, and the output end of image enhancing unit is connect with the input terminal of image sharpening unit, image
The input terminal of the output end and central processing unit that sharpen unit connects.
Preferably, current sensor is used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and will be high
Frequency current signal is transmitted to signal acquisition unit, and the signal received is transmitted to signal processing unit by signal acquisition unit, letter
Number processing unit is transmitted to A/D conversion module after being filtered the signal received, A/D conversion module will receive
Analog signal is transmitted to central processing unit after being converted to digital signal, and the signal received is transmitted to aobvious by central processing unit
Show that device is shown, the signal received is transmitted to memory and stored by central processing unit, and central processing unit will connect
The signal received is transmitted to remote monitoring end by radio transmitting device.
Preferably, image capture module is transmitted to the ultraviolet of the GIS equipment partial discharge to be measured of image processing module
Image definition is two-dimensional function f (x, y), and wherein x, y are space coordinates, and it is clear that image smoothing unit carries out image to image f (x, y)
Clear degree enhancing processing, by image definition enhancing, treated that two-dimensional image function is g (x, y), wherein smooth function q
(x, y),
G (x, y)=q (x, y) * f (x, y)；
﹡ is convolution symbol, and σ is customized adjustable constant, and smooth effect is controlled by σ.
Preferably, image enhancing unit carries out brightness of image enhancing processing to image g (x, y), increases by brightness of image
Treated by force, and two-dimensional image function is h (x, y), wherein
Preferably, image sharpening unit carries out image sharpening processing to image h (x, y), after image sharpening is handled
Two-dimensional image function be d (x, y), wherein
By treated, image d (x, y) is transmitted to central processing unit to image processing module.
Preferably, the image information received is transmitted to display and shown by central processing unit, central processing
The image information received is transmitted to memory and stored by device, and central processing unit passes through the image information received
Radio transmitting device is transmitted to remote monitoring end, and the image received and standard picture are compared remote monitoring end, to know
The shelf depreciation mode of other GIS, wherein gap electric discharge, creeping discharge, the floating potentical body electric discharge that standard picture is GIS to be measured
With the image of bubble electric discharge.
Based on above system, the present invention also provides a kind of equipment for realizing GIS equipment partial discharge test macro, comprising:
Memory, for storing computer program and GIS equipment partial discharge test macro；
Processor, for executing the computer program and GIS equipment partial discharge test macro, to realize GIS device
The step of partial discharge test system.
As can be seen from the above technical solutions, the invention has the following advantages that
(1) GIS equipment partial discharge test macro provided by the invention, utilizes central processing unit, current sensor, letter
Number processing circuit, A/D conversion module, ultraviolet lens, image capture module, image processing module, display, memory, nothing
Line transmitting device and remote monitoring end identify that image capture module acquisition is to be measured to GIS partial discharge mode to be measured
The image information of GIS partial discharge, central processing unit will by image processing module treated image and standard picture into
Row compares, to identify the shelf depreciation mode of the GIS, and using current sensor to GIS equipment partial discharge point to be measured
High-frequency current signal is detected, and be will test result and be transmitted to display and memory, and staff can pass through display
Know GIS partial discharge information to be measured, GIS partial discharge information to be measured can be also obtained by memory, is studied convenient for the later period.
(2) GIS equipment partial discharge test macro provided by the invention, image processing module to the image of acquisition successively into
Row image smoothing, image enhancement, image sharpening processing, can efficiently, quickly extract the image information of image capture module, can mention
Height efficiently reduces erroneous judgement and happens to the identification precision of the ultraviolet image of GIS equipment partial discharge to be measured.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in description will be made below simple
Ground introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill
For personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of GIS equipment partial discharge test macro of the invention；
Fig. 2 is the circuit diagram of signal processing circuit of the invention；
Fig. 3 is the schematic diagram of image processing module of the invention.
Appended drawing reference:
1- central processing unit；2- current sensor；3- signal processing circuit；4-A/D conversion module；The ultraviolet light microscopic of 5-
Head；6- image capture module；7- image processing module；8- display；9- memory；10- radio transmitting device；11- is remotely supervised
Control end.
Specific embodiment
Those of ordinary skill in the art may be aware that the reality in conjunction with disclosed in GIS equipment partial discharge test macro
Each exemplary unit and algorithm steps of example description are applied, can be come with the combination of electronic hardware, computer software or the two real
It is existing, in order to clearly illustrate the interchangeability of hardware and software, generally described in the above description according to function
Each exemplary composition and step.These functions are implemented in hardware or software actually, depending on the specific of technical solution
Using and design constraint.Professional technician can realize each specific application using distinct methods described
Function, but such implementation should not be considered as beyond the scope of the present invention.
Block diagram shown in the drawings is only functional entity, not necessarily must be corresponding with physically separate entity.
I.e., it is possible to realize these functional entitys using software form, or realized in one or more hardware modules or integrated circuit
These functional entitys, or these functional entitys are realized in heterogeneous networks and/or processor device and/or microcontroller device.
GIS equipment partial discharge test macro provided by the invention is carried out specifically with reference to the accompanying drawings and examples
It is bright.
As shown in Figure 1, GIS equipment partial discharge test macro provided by the invention includes central processing unit 1, electric current biography
Sensor 2, signal processing circuit 3, A/D conversion module 4, ultraviolet lens 5, image capture module 6, image processing module 7, display
Device 8, memory 9, radio transmitting device 10 and remote monitoring end 11；
Wherein, the output end of current sensor 2 is connect with the input terminal of signal processing circuit 3, signal processing circuit 3 it is defeated
Outlet is connect with the input terminal of A/D conversion module 4, and the output end of A/D conversion module 4 and the input terminal of central processing unit 1 connect
It connects, the output end of image capture module 6 is connect with the input terminal of image processing module 7, and the output end of image processing module 7 is in
Entreat the input terminal connection of processing unit 1, the input terminal of display 8, the input terminal of memory 9 and radio transmitting device 10 it is defeated
Enter end to connect with the output end of central processing unit 1, the output end of radio transmitting device 10 and the input of remote monitoring end 11
End connection, current sensor 2 are used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and image capture module 6 is logical
Cross the ultraviolet image that ultraviolet lens 5 acquires GIS equipment partial discharge to be measured.
In above embodiment, central processing unit 1, current sensor 2, signal processing circuit 3, A/D modulus of conversion are utilized
Block 4, ultraviolet lens 5, image capture module 6, image processing module 7, display 8, memory 9, radio transmitting device 10 with
And remote monitoring end 11, image capture module 6, which acquires GIS partial discharge to be measured, to be identified to GIS partial discharge mode to be measured
Image information, central processing unit 1 will be compared by treated the image of image processing module 6 and standard picture, with
Identify the shelf depreciation mode of the GIS, and using current sensor 2 to the high-frequency current of GIS equipment partial discharge point to be measured
Signal is detected, and be will test result and be transmitted to display 8 and memory 9, staff can be known by display 8 to
GIS partial discharge information is surveyed, GIS partial discharge information to be measured can be also obtained by memory 9, is studied convenient for the later period.
Specifically, display 8 is liquid crystal display.Central processing unit 1 is executed including one or more processors, and such as one
A or multiple digital signal processors (DSP), general purpose microprocessor, application-specific integrated circuit (ASICs), field programmable gate
Array (FPGA) or other equivalents are integrated circuit or discrete logic.Therefore, term " processor, " due to
It can refer to that any aforementioned structure or any other structure are more suitable for the technology as described herein realized when this paper.In addition,
In some respects, function described in the disclosure can be provided in software module and hardware module.
Specifically, GIS equipment partial discharge test macro further includes a power supply, and power supply is GIS equipment partial discharge test
System provides electric power support.
Specifically, power supply is sun-generated electric power.
Specifically, current sensor 2 is High Frequency Current Sensor, and the frequency detection range of the current sensor 2 is
50kHz-20MHz, sample frequency >=3MHz.
Specifically, memory 9 includes a data read port, and staff is read by the data read port of memory 9
Take GIS partial discharge information to be measured.
As above-mentioned further preferential, as shown in Figure 2, wherein current sensor 2 is for acquiring GIS device office to be measured
The high-frequency current signal of portion's point of discharge, and above-mentioned high-frequency current signal is transmitted to signal processing circuit 3, signal processing circuit 3
Including signal acquisition unit and signal processing unit, the output end of current sensor 2 and the input terminal of signal acquisition unit are connected,
The output end of signal acquisition unit and the input terminal of signal processing unit connect, and the output end and A/D of signal processing unit are converted
The input terminal of module 4 connects.
Specifically, signal acquisition unit includes resistance R1 and filter capacitor C1, wherein the output end of current sensor 2 connects
The both ends of resistance R1 are connected to, the both ends of resistance R1 are connect with the both ends of filter capacitor C1, and resistance R1 is connected with filter capacitor C1
One end draw output end as signal acquisition unit, the other end that resistance R1 is connected with filter capacitor C1 is grounded.
Specifically, the voltage signal after signal processing unit processes is V1, and signal processing unit includes resistance R2-
R8, capacitor C2-C3 and integrated transporting discharging A1-A2；
Wherein, the output end of signal acquisition unit is connect with one end of resistance R3, the other end and integrated transporting discharging of resistance R3
The non-inverting input terminal of A1 connects, and one end ground connection of resistance R2, the other end of resistance R2 and the inverting input terminal of integrated transporting discharging A1 connect
It connecing, the other end of resistance R2 is also connect with one end of resistance R4, and the other end of resistance R4 is connect with the output end of integrated transporting discharging A1,
The other end of resistance R4 is also connect with one end of resistance R5, and the other end of resistance R5 is connect with one end of capacitor C2, resistance R5's
The other end is also connect with one end of resistance R6, the other end of capacitor C2 ground connection, and the other end of resistance R6 is anti-with integrated transporting discharging A2's
The connection of phase input terminal, one end after resistance R7 is in parallel with capacitor C3 are connect with the inverting input terminal of integrated transporting discharging A2, resistance R7 and
The other end after capacitor C3 is in parallel is connect with the output end of integrated transporting discharging A2, and one end of resistance R8 is same mutually defeated with integrated transporting discharging A2's
Enter end connection, the other end ground connection of resistance R8, voltage signal V1 is transmitted to A/D conversion module to signal processing unit by treated
4 input terminal.
In above embodiment, the resistance value of resistance R1 is 1K Ω, and the resistance value of resistance R2 is 10K Ω, and the resistance value of resistance R3 is
The resistance value of 15K Ω, resistance R4 are 4K Ω, and the resistance value of resistance R5 is 6K Ω, and the resistance value of resistance R6 is 10K Ω, the resistance value of resistance R7
For 15K Ω, the resistance value of resistance R8 is 17K Ω, and the capacitance of capacitor C1 is 1 μ F, and the capacitance of capacitor C1 is 0.1 μ F, capacitor C1
Capacitance be 0.1 μ F.
Signal acquisition unit is powered using single supply, reduces power supply, and does not increase the complexity of signal acquisition circuit
Property, circuit structure is succinct, easy to accomplish, save the cost, and realizes the two-way acquisition that electric current is exported to current sensor 2,
Broad quantum, precision are high.
Current signal I0 is converted to measurable voltage signal after resistance R1, the entering signal after capacitor C1 filtering
The input terminal of processing unit, wherein resistance R1 is the build-out resistor of current sensor 2.
Signal processing unit passes through the signal that resistance R2-R4, capacitor C2 and integrated transporting discharging A1 export current sensor 2
Processing is amplified, resistance R5-R8, capacitor C2-C3 and integrated transporting discharging A2 is then reused and believes by amplified voltage
Number carry out low-pass filtering treatment, to improve the precision of current detecting.
As above-mentioned further preferential, as shown in figure 3, image processing module 7 includes image smoothing unit, image enhancement
Unit and image sharpening unit；
Wherein, the output end of image capture module 6 is connect with the input terminal of image smoothing unit, image smoothing unit it is defeated
The connection of the input terminal of outlet and image enhancing unit, the output end of image enhancing unit and the input terminal of image sharpening unit connect
It connects, the output end of image sharpening unit is connect with the input terminal of central processing unit 1.
In above embodiment, the image of 7 pairs of image processing module acquisitions successively carries out image smoothing, image enhancement, figure
As Edge contrast, the image information of image capture module 6 can efficiently, be quickly extracted, can be improved and GIS device to be measured is locally put
The identification precision of the ultraviolet image of electricity, efficiently reduces erroneous judgement and happens.
Specifically, current sensor 2 is used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and will be high
Frequency current signal is transmitted to signal acquisition unit, and the signal received is transmitted to signal processing unit by signal acquisition unit, letter
Number processing unit is transmitted to A/D conversion module 4 after being filtered the signal received, and A/D conversion module 4 will receive
Analog signal be converted to and be transmitted to central processing unit 1 after digital signal, central processing unit 1 transmits the signal received
It is shown to display 8, the signal received is transmitted to memory 9 and stored by central processing unit 1, central processing dress
It sets 1 and the signal received is transmitted to remote monitoring end 11 by radio transmitting device 10.
Display 8 and memory 9 are located in monitoring room, staff's energy when being monitored to GIS partial discharge to be measured
It is enough that GIS partial discharge information to be measured is directly acquired in monitoring room.
Specifically, image capture module 6 is transmitted to the ultraviolet of the GIS equipment partial discharge to be measured of image processing module 7
Image definition is two-dimensional function f (x, y), and wherein x, y are space coordinates, and it is clear that image smoothing unit carries out image to image f (x, y)
Clear degree enhancing processing, by image definition enhancing, treated that two-dimensional image function is g (x, y), wherein smooth function q
(x, y),
G (x, y)=q (x, y) * f (x, y)；
Wherein , ﹡ is convolution symbol, and σ is customized adjustable constant, and smooth effect is controlled by σ.
Specifically, image enhancing unit carries out brightness of image enhancing processing to image g (x, y), enhances by brightness of image
Treated, and two-dimensional image function is h (x, y), wherein
Specifically, image sharpening unit carries out image sharpening processing to image h (x, y), and by image sharpening, treated
Two-dimensional image function is d (x, y), wherein
In above embodiment, inhibit its low to protrude the high-frequency information of image by the comparison to Image neighborhood frequency
Frequency information.
By treated, image d (x, y) is transmitted to central processing unit 1 to image processing module 7.
Specifically, the image information received is transmitted to display 8 and shown by central processing unit 1, central processing
The image information received is transmitted to memory 9 and stored by device 1, the image information that central processing unit 1 will receive
It is transmitted to remote monitoring end 11 by radio transmitting device 10, remote monitoring end 11 carries out the image received and standard picture
It compares, to identify the shelf depreciation mode of GIS, wherein standard picture is the gap electric discharge of GIS to be measured, creeping discharge, suspend electricity
The image of position body electric discharge and bubble electric discharge.
Based on above system, the present invention also provides a kind of equipment for realizing GIS equipment partial discharge test macro, comprising: deposits
Reservoir, for storing computer program and GIS equipment partial discharge test macro；Processor, for executing the computer journey
Sequence and GIS equipment partial discharge test macro, the step of to realize GIS equipment partial discharge test macro.
Person of ordinary skill in the field is it is understood that realize the various aspects of GIS equipment partial discharge test macro
It can be implemented as system, method or program product.Therefore, various aspects of the disclosure can be with specific implementation is as follows, it may be assumed that
It is combined in terms of complete hardware embodiment, complete Software Implementation (including firmware, microcode etc.) or hardware and software
Embodiment, may be collectively referred to as circuit, " module " or " system " here.
In the storage medium for realizing GIS equipment partial discharge test macro, it is stored with that can be realized this specification above-mentioned
The program product of method.In some possible embodiments, various aspects of the disclosure is also implemented as a kind of program production
The form of product comprising program code, when described program product is run on the terminal device, said program code is for making institute
Terminal device is stated to execute described in above-mentioned " illustrative methods " part of this specification according to the various exemplary embodiment party of the disclosure
The step of formula.
Realize that the program code for including in GIS equipment partial discharge test macro can transmit with any suitable medium,
Including but not limited to wireless, wired, optical cable, RF etc. or above-mentioned any appropriate combination.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of GIS equipment partial discharge test macro characterized by comprising central processing unit (1), current sensor
(2), ultraviolet lens (5), image capture module (6), image processing module (7), display (8), memory (9)；
Image capture module (6) passes through image processing module (7) connection central processing unit (1)；
Remote monitoring end (11) passes through radio transmitting device (10) connection central processing unit (1)；
Current sensor (2) is connect with central processing unit (1)；
Display (8) and memory (9) are communicated to connect with central processing unit (1) respectively；
Current sensor is used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and is transferred to central processing dress
Set (1)；
Image capture module acquires the ultraviolet image of GIS equipment partial discharge to be measured by ultraviolet lens (5), and is transferred to
It entreats processing unit (1)；
Central processing unit (1) will compare by the standard picture in image processing apparatus treated image and memory
It is right, to identify the shelf depreciation mode of GIS, and using current sensor to the high-frequency current of GIS equipment partial discharge point to be measured
Signal is detected, and be will test result and be transmitted to display and shown, is stored by memory.
2. GIS equipment partial discharge test macro according to claim 1, which is characterized in that
Further include: signal processing circuit (3) and A/D conversion module (4),
Current sensor (2) passes sequentially through signal processing circuit (3) and A/D conversion module (4) connection central processing unit (1)；
Current sensor is also used to acquire the high-frequency current signal of GIS equipment partial discharge point to be measured, and by above-mentioned high-frequency current
Signal is transmitted to signal processing circuit (3), and signal processing circuit (3) includes signal acquisition unit and signal processing unit, electric current
The output end of sensor and the input terminal of signal acquisition unit connect, the output end of signal acquisition unit and signal processing unit
Input terminal connection, the output end of signal processing unit are connect with the input terminal of A/D conversion module；
The output end of A/D conversion module connects central processing unit (1).
3. GIS equipment partial discharge test macro according to claim 2, which is characterized in that
Signal acquisition unit includes: resistance R1 and filter capacitor C1, and the output end of current sensor is connected to the both ends of resistance R1,
The both ends of resistance R1 are connect with the both ends of filter capacitor C1, and one end that resistance R1 is connected with filter capacitor C1, which is drawn, is used as signal
The output end of acquisition unit, the other end ground connection that resistance R1 is connected with filter capacitor C1.
4. GIS equipment partial discharge test macro according to claim 2, which is characterized in that
Signal processing unit include resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, capacitor C2,
Capacitor C3 and integrated transporting discharging A1 and integrated transporting discharging A2；
Voltage signal after signal processing unit processes is V1；
The output end of signal acquisition unit is connect with one end of resistance R3, and the other end of resistance R3 is same mutually defeated with integrated transporting discharging A1's
Enter end connection, one end ground connection of resistance R2, the other end of resistance R2 is connect with the inverting input terminal of integrated transporting discharging A1, resistance R2's
The other end is also connect with one end of resistance R4, and the other end of resistance R4 is connect with the output end of integrated transporting discharging A1, and resistance R4's is another
One end is also connect with one end of resistance R5, and the other end of resistance R5 is connect with one end of capacitor C2, the other end of resistance R5 also with
One end of resistance R6 connects, and the other end ground connection of capacitor C2, the other end of resistance R6 and the inverting input terminal of integrated transporting discharging A2 connect
It connects, one end after resistance R7 is in parallel with capacitor C3 is connect with the inverting input terminal of integrated transporting discharging A2, and resistance R7 is in parallel with capacitor C3
The other end afterwards is connect with the output end of integrated transporting discharging A2, and one end of resistance R8 is connect with the non-inverting input terminal of integrated transporting discharging A2,
The other end of resistance R8 is grounded, and signal processing unit is by the input terminal of treated voltage signal V1 is transmitted to A/D conversion module.
5. GIS equipment partial discharge test macro according to claim 1 or 2, which is characterized in that
Image processing module includes: image smoothing unit, image enhancing unit and image sharpening unit；
The output end of image capture module is connect with the input terminal of image smoothing unit, the output end and image of image smoothing unit
The input terminal of enhancement unit connects, and the output end of image enhancing unit is connect with the input terminal of image sharpening unit, image sharpening
The output end of unit and the input terminal of central processing unit connect.
6. GIS equipment partial discharge test macro according to claim 1 or 2, which is characterized in that
Further include: radio transmitting device (10)；
The data information received is transmitted to remote monitoring end (11) by radio transmitting device (10) by central processing unit；
The image received and standard picture are compared remote monitoring end, to identify the shelf depreciation mode of GIS；Standard drawing
As the image of the gap electric discharge, creeping discharge, the floating potentical body electric discharge and bubble electric discharge that are GIS to be measured.
7. GIS equipment partial discharge test macro according to claim 5, which is characterized in that
The GIS equipment partial discharge ultraviolet image to be measured that image processing module is used to transmit image capture module is defined as two dimension
Function f (x, y), wherein x, y are space coordinates, and image smoothing unit carries out image definition enhancing processing to image f (x, y),
It is g (x, y) by image definition enhancing treated two-dimensional image function, wherein smooth function is q (x, y),
G (x, y)=q (x, y) * f (x, y)；
Wherein , ﹡ is convolution symbol, and σ is customized adjustable constant, and smooth effect is controlled by σ.
8. GIS equipment partial discharge test macro according to claim 7, which is characterized in that
Image enhancing unit carries out brightness of image enhancing processing to image g (x, y), by brightness of image enhancing treated image
Two-dimensional function is h (x, y), wherein
9. GIS equipment partial discharge test macro according to claim 8, which is characterized in that
Image sharpening unit carries out image sharpening processing to image h (x, y), by image sharpening treated two-dimensional image function
For d (x, y), wherein
By treated, image d (x, y) is transmitted to central processing unit to image processing module.
10. a kind of equipment for realizing GIS equipment partial discharge test macro characterized by comprising
Memory, for storing computer program and GIS equipment partial discharge test macro；
Processor, for executing the computer program and GIS equipment partial discharge test macro, to realize such as claim 1
To described in 9 any one the step of GIS equipment partial discharge test macro.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910970362.6A CN110514972A (en) | 2019-10-13 | 2019-10-13 | A kind of GIS equipment partial discharge test macro and equipment |
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| CN201910970362.6A CN110514972A (en) | 2019-10-13 | 2019-10-13 | A kind of GIS equipment partial discharge test macro and equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333482A (en) * | 2018-01-17 | 2018-07-27 | 南通尚力机电工程设备有限公司 | A kind of measurement method of GIS partial discharge pattern-recognition |
| CN108892041A (en) * | 2018-08-09 | 2018-11-27 | 南京梵科智能科技有限公司 | A kind of supporting leg detection device of bridge crane |
| CN109085480A (en) * | 2018-09-30 | 2018-12-25 | 中国电力科学研究院有限公司 | It is a kind of for detecting the system and method for GIS internal discharge information |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333482A (en) * | 2018-01-17 | 2018-07-27 | 南通尚力机电工程设备有限公司 | A kind of measurement method of GIS partial discharge pattern-recognition |
| CN108892041A (en) * | 2018-08-09 | 2018-11-27 | 南京梵科智能科技有限公司 | A kind of supporting leg detection device of bridge crane |
| CN109085480A (en) * | 2018-09-30 | 2018-12-25 | 中国电力科学研究院有限公司 | It is a kind of for detecting the system and method for GIS internal discharge information |
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