阅读说明：本技术 一种gis设备局部放电测试系统及设备 (A kind of GIS equipment partial discharge test macro and equipment ) 是由 亓曙光 王函旭 李松晨 孟凡敏 亓红 刘增昕 宋培泽 王俊相 朱云贵 武军 刘治 于 2019-10-13 设计创作，主要内容包括：本发明提供一种GIS设备局部放电测试系统及设备,利用中央处理装置、电流传感器、信号处理电路、A/D转换模块、紫外光镜头、图像采集模块、图像处理模块、显示器、存储器、无线传输装置以及远程监控端,对待测GIS局部放电模式进行识别,图像采集模块采集待测GIS局部放电的图像信息,中央处理装置将经过图像处理模块处理后的图像和标准图像进行比对,以识别所述GIS的局部放电模式,并使用电流传感器对待测GIS设备局部放电点的高频电流信号进行检测,并将检测结果传输至显示器和存储器,工作人员能够通过显示器获知待测GIS局部放电信息,也能够通过存储器获取待测GIS局部放电信息,便于后期研究。(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.)

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.

The present invention relates to technical field of power systems more particularly to a kind of GIS equipment partial discharge test macros and equipment.

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.

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.

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.