CN207636751U - Ultrasonic discharge mode control device - Google Patents
Ultrasonic discharge mode control device Download PDFInfo
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- CN207636751U CN207636751U CN201721826844.7U CN201721826844U CN207636751U CN 207636751 U CN207636751 U CN 207636751U CN 201721826844 U CN201721826844 U CN 201721826844U CN 207636751 U CN207636751 U CN 207636751U
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- control device
- insulation crust
- discharge
- signal
- mode control
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Abstract
Ultrasonic discharge mode control device, including：Insulation crust；The mode memory being set in insulation crust, for storing different types of discharge pulse characteristic sequence；The master controller being set in insulation crust reads discharge pulse characteristic sequence for slave pattern memory, and is exported after being converted；The signal amplifier being set in insulation crust, the signal amplification for autonomous control device will to be exported；The discharge capacity collator being set in insulation crust, amplitude and pulse width for adjusting amplified signal；The tdm controller being set in insulation crust, for control it is adjusted after signal output time it is poor；The power module being set in insulation crust；A pair of of the electroacoustic transducer being set to outside insulation crust, discharge capacity collator divide the signal into two-way and are exported respectively through tdm controller to each electroacoustic transducer.The utility model can generate a variety of local discharge signals, and can ensure that the accuracy and repeatability of partial discharge pulse's signal and fault mode.
Description
Technical field
The utility model belongs to power equipment safety detection technique field, insulate for GIS more specifically to one kind
The ultrasonic discharge mode control device of status monitoring and diagnostic device test.
Background technology
Power equipment is particularly important one of device in modernization industry production, and power equipment once breaks down will
Bring great economic loss.Insulation breakdown is the main reason for causing electrical equipment fault.With manufacturing process raising and
The progress of technology, more and more novel electric power apparatus are constantly put into electric system, and combined electrical apparatus (GIS/HGIS) is because of it
It is compact-sized, advantages of environment protection application is increasingly extensive.
The reason of GIS internal discharge defects, has following several：Micro-bubble in minute metallic particle, dielectric connects
The tiny tips etc. on tiny tips and conductor on ground shell.Ultrasonic sensor can detect the ultrasound of shelf depreciation generation
Wave signal, and be widely used in the insulation Site Detection of power equipment.But the Performance Assessment of Partial Discharge Detection equipment, one
As all by being arranged artificial defect inside GIS, apply high pressure and bring it about electric discharge, with this testing instruments performance.This mode
There are artificial defect consistency, and undesirable, experimental repeatability is difficult to ensure, replaces the shortcomings of artificial defect model is cumbersome, compels to be essential
Want some new simulation means.
Utility model content
The purpose of this utility model is to provide a kind of ultrasonic discharge mode control device, can generate a variety of shelf depreciation letters
Number, and can ensure that the accuracy and repeatability of partial discharge pulse's signal and fault mode.
To achieve the goals above, the utility model takes following technical solution：
Ultrasonic discharge mode control device, including：Insulation crust；The mode memory being set in the insulation crust,
The mode memory is for storing different types of discharge pulse characteristic sequence；The main control being set in the insulation crust
Device, the master controller reads discharge pulse characteristic sequence from the mode memory, and is exported after carrying out signal conversion；Setting
Signal amplifier in the insulation crust, the signal amplifier are used to put output from the signal of the master controller
Greatly；The discharge capacity collator being set in the insulation crust, the discharge capacity collator is for adjusting amplified signal
Amplitude and pulse width；The tdm controller being set in the insulation crust, the tdm controller is for controlling through adjusting
The output time of signal after whole is poor；The power module being set in the insulation crust, the power module are the master control
Device power supply processed；A pair of of the electroacoustic transducer being set to outside the insulation crust, the discharge capacity collator divide the signal into two-way
It is exported respectively to each electroacoustic transducer through the tdm controller.
More specifically, the master controller includes internal storage, arm processor and D/A converter, the ARM processing
Device is connect with the internal storage and the D/A converter respectively；The internal storage is used for storage file system, described
Arm processor is connect with the mode memory, after the mode memory reads discharge pulse characteristic sequence, by the D/
A converters export after carrying out signal conversion.
More specifically, the arm processor uses the OMAP34X0 series processors of Texas Instrument.
More specifically, the internal storage uses the memory of model WS25S022A.
More specifically, the D/A converter uses the Direct Digital Frequency Synthesizers chip of model AD9959.
More specifically, the signal amplifier uses the operational amplifier of model OPA627.
More specifically, the discharge capacity collator is pulse shaper.
More specifically, the tdm controller uses fpga chip.
More specifically, the electroacoustic transducer uses frequency for the electroacoustic transducer of 20kHz~200kHz.
More specifically, the master controller, mode memory, signal amplifier, discharge capacity collator, tdm controller according to
Secondary to be connected, the tdm controller is connected with electroacoustic transducer.
By above technical scheme it is found that the utility model stores the electric discharge class of various faults pattern using mode memory
Type data can generate various types of discharge signals, by master controller read discharge pulse characteristic sequence after output signal, from
And ensure the accuracy and repeatability of partial discharge pulse's signal and fault mode；And partial discharge pulse's signal and failure mould
Formula can also update at any time according to demand, it is ensured that the diversity of shelf depreciation electric impulse signal and fault mode.The utility model can
Efficiently, the performance of different businessman's detection devices is quickly evaluated；It can be used for the on-line monitoring equipment shelf depreciation being fixedly mounted
The examination of pattern-recognition and source of trouble positioning function；And training and examination for testing staff.
Description of the drawings
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of the utility model embodiment
The attached drawing used does simple introduction, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the circuit block diagram of master controller；
Fig. 3 is the schematic diagram of one application example of the utility model.
Specific embodiment of the present utility model is described in more detail below in conjunction with attached drawing.
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings, when the utility model embodiment is described in detail, for ease of
Illustrate, indicates that the attached drawing of device architecture can disobey general proportion and do partial enlargement, and the schematic diagram is example, herein
The range of the utility model protection should not be limited.It should be noted that attached drawing is using simplified form and uses non-accurate
Ratio, only to purpose that is convenient, clearly aiding in illustrating the utility model embodiment.
As shown in Figure 1, the ultrasonic discharge mode control device of the present embodiment includes insulation crust 11, power module 12, master
Controller 13, mode memory 14, signal amplifier 15, discharge capacity collator 16, tdm controller 17 and a pair of of electroacoustic turn
Parallel operation 18.Wherein, power module 12, master controller 13, mode memory 14, signal amplifier 15, discharge capacity collator 16, point
When controller 17 may be contained in insulation crust 11, electroacoustic transducer 18 is set on the outer surface of insulation crust 11.Main control
Device 13, mode memory 14, signal amplifier 15, discharge capacity collator 16, tdm controller 17 are sequentially connected, tdm controller
17 are connected with electroacoustic transducer 18.The insulation crust 11 of the present embodiment is made of epoxy resin, is long 80mm, a width
The thickness of the box body of 80mm, high 100mm, insulation crust 11 is 2mm.
Master controller 13 is used in slave pattern memory 14 read the discharge pulse characteristic sequence of electric discharge type, and will power generation
Pulse pulse sequence is converted to output of pulse signal to signal amplifier 15.Stored in mode memory 14 corona, sharp plate and
Various types of discharge pulse characteristic sequences such as free particle include the width of various electric discharge types in discharge pulse characteristic sequence
Value tag and temporal aspect.Signal amplifier 15 is for amplifying signal, the power and amplitude of promotion signal.Amplified signal
Output is divided into two-way, through tdm controller 17 to discharge capacity collator 16 after being adjusted to signal by discharge capacity collator 16
It is exported respectively to two electroacoustic transducers 18.Tdm controller 17 is used to adjust the time difference of two paths of signals output.Power module
12 power for master controller 13.Power module 12 includes rechargeable lithium battery and power supply changeover device, and power supply changeover device is by lithium battery
Voltage be converted to 5V needed for master controller 13 and 3.3V voltages, voltage ripple is less than 1mV.
As shown in Fig. 2, master controller 13 includes internal storage 131, arm processor 132 and D/A converter 133, ARM
Processor 132 is connect with internal storage 131 and D/A converter 133 respectively.Internal storage 131 is used for storage file system,
D/A converter is converted for digital and analogue signals.Arm processor 132 is connect with mode memory 14, and the reading of slave pattern memory 14 is put
After electric pulse characteristic sequence, signal conversion is carried out by D/A converter 133 and is exported.The arm processor 132 of the present embodiment uses
The OMAP34X0 series processors of Texas Instrument (TI), internal storage 131 is using the memory of model WS25S022A, D/A
Converter 133 uses the Direct Digital Frequency Synthesizers chip of model AD9959.
The signal amplifier 15 of the present embodiment uses the operational amplifier of model OPA627.Discharge capacity collator 16 is arteries and veins
Shaping circuit is rushed, by adjusting the amplitude and pulse width of signal, realizes that the control of discharge capacity is examined with accuracy of detection.Timesharing control
Device 17 processed uses fpga chip.Electroacoustic transducer 18 uses frequency for the electroacoustic transducer of 20kHz~200kHz.
The ultrasonic discharge mode control device of the utility model exports characteristic pulse signal by electroacoustic transducer, can be used for
Partial discharge test equipment is detected, partial discharge test equipment couples the feature arteries and veins that electroacoustic transducer exports by receiving coupler
Signal is rushed, realizes that accuracy of detection examination is examined with pattern recognition function.As shown in figure 3, by ultrasonic discharge mode control device 100
It is positioned over the inside of GIS101, two couplers 102 are tightly attached on the disc insulator of GIS101 respectively, and coupler 102 surpasses
Acoustical signal accesses in detector 103.Various electric discharge type signals are generated by controlling ultrasonic discharge mode control device 100, it is right
The pattern recognition function of detector 103 is examined.
Ultrasonic discharge mode control device can also be positioned over inside GIS, two ultrasonic sensors are attached to GIS shells
The different location of disc insulator on body connects two ultrasonic sensors to oscillograph with two cable links.It opens super
Sound discharge mode control device generates the different discharge signal of output time；The letter received according to two ultrasonic sensors
Number propagation time difference and two ultrasonic sensors between position carry out partial discharge fault source positioning test.
In addition, the utility model applies also for training testing staff, by controlling ultrasonic discharge mode control device production
Raw different electric discharge type and time difference variation can have visual understanding to electric discharge type and positioning accuracy, reach training employee
The application method of pertinent instruments is grasped, the purpose of monitoring technical ability is improved.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, this practicability is not intended to be limited to embodiment illustrated herein, and is to fit to and principles disclosed herein and novelty
The consistent widest range of feature.
Claims (10)
1. ultrasonic discharge mode control device, which is characterized in that including：
Insulation crust；
The mode memory being set in the insulation crust, the mode memory is for storing different types of discharge pulse
Characteristic sequence；
The master controller being set in the insulation crust, the master controller read discharge pulse spy from the mode memory
Sequence is levied, and is exported after carrying out signal conversion；
The signal amplifier being set in the insulation crust, the signal amplifier will be for that will export from the master controller
Signal amplifies；
The discharge capacity collator being set in the insulation crust, the discharge capacity collator is for adjusting amplified signal
Amplitude and pulse width；
The tdm controller being set in the insulation crust, the tdm controller be used for control it is adjusted after signal it is defeated
Go out the time difference；
The power module being set in the insulation crust, the power module are powered for the master controller；
A pair of of the electroacoustic transducer being set to outside the insulation crust, the discharge capacity collator divide the signal into described in two-way warp
Tdm controller is exported respectively to each electroacoustic transducer.
2. ultrasound discharge mode control device as described in claim 1, it is characterised in that：The master controller is deposited including inside
Reservoir, arm processor and D/A converter, the arm processor connect with the internal storage and the D/A converter respectively
It connects；The internal storage is used for storage file system, and the arm processor is connect with the mode memory, from the mould
After formula memory reads discharge pulse characteristic sequence, exported after carrying out signal conversion by the D/A converter.
3. ultrasound discharge mode control device as claimed in claim 2, it is characterised in that：The arm processor uses Dezhou
The OMAP34X0 series processors of instrument.
4. ultrasound discharge mode control device as claimed in claim 2, it is characterised in that：The internal storage uses model
For the memory of WS25S022A.
5. ultrasound discharge mode control device as claimed in claim 2, it is characterised in that：The D/A converter uses model
For the Direct Digital Frequency Synthesizers chip of AD9959.
6. the ultrasonic discharge mode control device as described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The signal is put
Big device uses the operational amplifier of model OPA627.
7. the ultrasonic discharge mode control device as described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The discharge capacity
Collator is pulse shaper.
8. the ultrasonic discharge mode control device as described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The timesharing control
Device processed uses fpga chip.
9. the ultrasonic discharge mode control device as described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The electroacoustic turns
Parallel operation uses frequency for the electroacoustic transducer of 20kHz~200kHz.
10. the ultrasonic discharge mode control device as described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The master control
Device processed, mode memory, signal amplifier, discharge capacity collator, tdm controller are sequentially connected, the tdm controller and electricity
Acoustical convertor is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721826844.7U CN207636751U (en) | 2017-12-21 | 2017-12-21 | Ultrasonic discharge mode control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721826844.7U CN207636751U (en) | 2017-12-21 | 2017-12-21 | Ultrasonic discharge mode control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207636751U true CN207636751U (en) | 2018-07-20 |
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ID=62852292
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721826844.7U Active CN207636751U (en) | 2017-12-21 | 2017-12-21 | Ultrasonic discharge mode control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327108A (en) * | 2020-10-09 | 2021-02-05 | 国网冀北电力有限公司检修分公司 | Tank-type circuit breaker partial discharge ultrasonic signal denoising and time difference identification method |
-
2017
- 2017-12-21 CN CN201721826844.7U patent/CN207636751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327108A (en) * | 2020-10-09 | 2021-02-05 | 国网冀北电力有限公司检修分公司 | Tank-type circuit breaker partial discharge ultrasonic signal denoising and time difference identification method |
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