CN107942205A - A kind of independent multichannel Analysis of Partial Discharge platform - Google Patents
A kind of independent multichannel Analysis of Partial Discharge platform Download PDFInfo
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- CN107942205A CN107942205A CN201710861357.2A CN201710861357A CN107942205A CN 107942205 A CN107942205 A CN 107942205A CN 201710861357 A CN201710861357 A CN 201710861357A CN 107942205 A CN107942205 A CN 107942205A
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- partial discharge
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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
- G01R31/1263—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 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—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 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Abstract
The present invention provides a kind of independent multichannel Analysis of Partial Discharge platform, including signal processing display unit, high speed acquisition unit, signal condition unit and program control filtering unit, signal processing display unit connects high speed acquisition unit, high speed acquisition unit connects signal condition unit, signal condition unit connection program control filtering unit.Signal condition unit and program control filtering unit respectively set multiple, multiple signal condition units connection high speed acquisition units.Independent multi-channel digital measurement of partial discharge, synchronized sampling, processing, display, synchronous error is less than 1ns, high sampling rate, multichannel gathers at the same time, per passage highest sample rate 80MS/s, can effectively differentiate the discharge signal in the range of 0.3m, it is widely used in the shelf depreciation test of high-tension electricity equipment, including detection and prerun after equipment factory testing, commissioning test, overhaul.Possesses experts database analysis system.Being capable of analytical equipment shelf depreciation value, and the insulation status of analytical equipment can be capable of exactly.
Description
Technical field
The present invention relates to Partial Discharge Detection analysis technical field, more particularly to a kind of independent multichannel Analysis of Partial Discharge
Platform.
Background technology
With expanding economy, the application to electric power is more and more extensive, and power failure can undoubtedly cause power consumer great damage
Lose.And substation is electric system hair, defeated, the indispensable link of distribution engineering, so the safe operation of substation is electric power
The important component of system safety operation, if substation occurs accident and can directly affect the safe operation of power grid, forces electricity
The method of operation of Force system changes, and power failure can be caused when serious, causes large-area power-cuts.Power transformation operation work is flat
It is all.
Since current high-tension apparatus is to large capacity, function centralization development, such as high-power transformer, multi-compartment GIS
Etc. equipment, and current Analysis of Partial Discharge instrument number of channels is few, and acquisition rate is slow, and the detection operation to Large-scale High-Pressure equipment is multiple
Miscellaneous, efficiency is low, it is not easy to judges the specific location of point of discharge.So as to which measurement of partial discharge multiple spot gathers local discharge signal at the same time
As development trend.
With the rapid development of digital collection technology, make multichannel while collection becomes a reality, research and develop a kind of multichannel office
Portion's electric discharge digital analysis platform becomes inexorable trend.
It is now 2,4,6,8 logical in industry as the development of digital collection technology is developed multichannel shelf depreciation instrument
Road PD meter has occurred and has applied, and more 12 passages, 24 passages also have been reported that, but most multi-path-apparatus is all
Applied to fields such as on-line monitorings, and sample rate is low, and measurement frequency band is relatively narrow.
The content of the invention
In order to solve the problems, such as described in background technology, the present invention provides a kind of independent multichannel Analysis of Partial Discharge platform,
Independent multi-channel digital measurement of partial discharge, synchronized sampling, processing, display, synchronous error are less than 1ns, and high sampling rate is more logical
Road gathers at the same time, per passage highest sample rate 80MS/s, can effectively differentiate the discharge signal in the range of 0.3m, which can
Be widely used in high-tension electricity equipment shelf depreciation test in, including after equipment factory testing, commissioning test, overhaul detect with
And prerun.Possesses experts database analysis system.Being capable of analytical equipment shelf depreciation value, and the exhausted of analytical equipment can be capable of exactly
Edge situation.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of independent multichannel Analysis of Partial Discharge platform, including signal processing display unit, high speed acquisition unit, signal
Conditioning unit and program control filtering unit, signal processing display unit connection high speed acquisition unit, high speed acquisition unit connection signal
Conditioning unit, signal condition unit connection program control filtering unit.
Signal condition unit and program control filtering unit respectively set multiple, multiple signal condition units connection high speed acquisition lists
Member.
The signal processing display unit completes the processing to having gathered information using industrial personal computer and display, realizes number
According to processing, waveform display function.
The high speed acquisition unit multichannel gathers at the same time, single channel can complete independently collection, and trigger source is set, can
Passage triggering and external trigger mode, single channel highest sample frequency 80MS/s are set as, interchannel minimum resolving time is less than
1ns, can effectively differentiate the discharge signal in the range of 0.3m.
Adjustment of the signal condition unit to signal amplitude, waveform parameter, can reach acquisition condition.
The program control filtering module, high-pass filtering and low-pass filtering independent assortment, can select between 10kHZ-30MHZ
Select.
The signal processing display unit include man-machine administration interface module, parameter configuration module, data acquisition module,
Data extraction module, the interference module that disappears, statistical analysis module, expert intelligence judgment module, data analysis module, data export and
Generate reporting modules, parameter configuration module, data acquisition module, data extraction module, data analysis module, data export and life
It is sequentially connected into reporting modules, data extraction module is also associated with disappear interference module and statistical analysis module, statistical analysis module
Expert intelligence judgment module is connected, man-machine administration interface module exports and generates reporting modules with data and is connected.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, a kind of independent multichannel Analysis of Partial Discharge platform of the invention, independent multi-channel digital shelf depreciation are surveyed
Amount, synchronized sampling, processing, display, synchronous error are less than 1ns, high sampling rate, and multichannel gathers at the same time, per the sampling of passage highest
Rate 80MS/s, can effectively differentiate the discharge signal in the range of 0.3m, which can be widely applied to high-tension electricity equipment
In shelf depreciation test, including detection and prerun after equipment factory testing, commissioning test, overhaul.
2nd, a kind of independent multichannel Analysis of Partial Discharge platform of the invention, possesses experts database analysis system.Can be accurate
Ground analytical equipment shelf depreciation value, and the insulation status of analytical equipment can be capable of.
3rd, a kind of independent multichannel Analysis of Partial Discharge platform system of the invention, each passage can external a variety of biographies
Sensor, is suitable for the Partial Discharge Detection of distinct device.Such as can external impedance, HF current transformer, ultrasonic sensor
Measuring transformer shelf depreciation, can external uhf sensor, ultrasonic sensor measurement GIS partial discharge.
Brief description of the drawings
Fig. 1 is a kind of structure chart of independent multichannel Analysis of Partial Discharge platform of the present invention；
Fig. 2 is a kind of signal processing display unit built-in system of independent multichannel Analysis of Partial Discharge platform of the present invention
Structure chart.
Embodiment
Embodiment provided by the invention is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of independent multichannel Analysis of Partial Discharge platform, including signal processing display unit, adopt at a high speed
Collect unit, signal condition unit and program control filtering unit, signal processing display unit connection high speed acquisition unit, high speed acquisition list
Member connection signal condition unit, signal condition unit connection program control filtering unit.
Signal condition unit and program control filtering unit respectively set multiple, multiple signal condition units connection high speed acquisition lists
Member.
The signal processing display unit completes the processing to having gathered information using industrial personal computer and display, realizes number
According to processing, waveform display function.
The high speed acquisition unit multichannel gathers at the same time, single channel can complete independently collection, and trigger source is set, can
Passage triggering and external trigger mode, single channel highest sample frequency 80MS/s are set as, interchannel minimum resolving time is less than
1ns, can effectively differentiate the discharge signal in the range of 0.3m.
Adjustment of the signal condition unit to signal amplitude, waveform parameter, can reach acquisition condition.
The program control filtering module, high-pass filtering and low-pass filtering independent assortment, can select between 10kHZ-30MHZ
Select.
As shown in Fig. 2, the signal processing display unit includes man-machine administration interface module, parameter configuration module, number
According to acquisition module, data extraction module, the interference module that disappears, statistical analysis module, expert intelligence judgment module, data analysis mould
Block, data export and generation reporting modules, parameter configuration module, data acquisition module, data extraction module, data analysis mould
Block, data export and generation reporting modules are sequentially connected, and data extraction module is also associated with disappear interference module and statistical analysis mould
Block, statistical analysis module connection expert intelligence judgment module, man-machine administration interface module export and generate reporting modules with data
It is connected.
The independent multichannel Analysis of Partial Discharge platform of the present invention has following features：
1) high sampling rate, 9 passages gather at the same time
Per passage highest sample rate 80MS/s, nine passages gather at the same time, and any passage can be taken to trigger, and external trigger etc. is touched
Originating party formula.Passage is shown in that minimum resolving time is less than 1ns, can effectively differentiate the discharge signal in the range of 0.3m.
2) can external multiple sensors
The system every passage all can external multiple sensors, be suitable for the Partial Discharge Detection of distinct device.Such as can
External impedance, HF current transformer, ultrasonic sensor measuring transformer shelf depreciation, can external uhf sensor, super
Sonic sensor measures GIS partial discharge.
3) multiband filters
The system possesses simulation, digital two kinds of means of filtering, can effectively remove external interference.
4) ultra-wideband detection
Traditional PD meter measurement frequency band generally can reach 10MHz in hundreds of kHz to 1MHz, the system.
5) software processing
Software realizes that useful signal extracts, expert's identification.
Following table is the equipment technical parameters using 9 passages as embodiment：
Above example is implemented under premised on technical solution of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
It is conventional method not mentionlet alone bright.
Claims (6)
1. a kind of independent multichannel Analysis of Partial Discharge platform, it is characterised in that including signal processing display unit, high speed acquisition
Unit, signal condition unit and program control filtering unit, signal processing display unit connection high speed acquisition unit, high speed acquisition unit
Connect signal condition unit, signal condition unit connection program control filtering unit；
Signal condition unit and program control filtering unit respectively set multiple, multiple signal condition units connection high speed acquisition units.
A kind of 2. independent multichannel Analysis of Partial Discharge platform according to claim 1, it is characterised in that the signal
Processing display unit completes the processing to having gathered information using industrial personal computer and display, realizes that data processing, waveform show work(
Energy.
A kind of 3. independent multichannel Analysis of Partial Discharge platform according to claim 1, it is characterised in that the high speed
Collecting unit multichannel gathers at the same time, single channel can complete independently collection, and trigger source is set, passage triggering and exterior can be set as
Triggering pattern, single channel highest sample frequency 80MS/s, interchannel minimum resolving time are less than 1ns, can effectively differentiate
Discharge signal in the range of 0.3m.
A kind of 4. multichannel Analysis of Partial Discharge platform according to claim 1, it is characterised in that the signal condition
Adjustment of the unit to signal amplitude, waveform parameter, can reach acquisition condition.
5. a kind of independent multichannel Analysis of Partial Discharge platform according to claim 1, it is characterised in that described is program-controlled
Filter module, high-pass filtering and low-pass filtering independent assortment, can select between 10kHZ-30MHZ.
A kind of 6. independent multichannel Analysis of Partial Discharge platform according to claim 1, it is characterised in that the signal
Processing display unit include man-machine administration interface module, parameter configuration module, data acquisition module, data extraction module, disappear it is dry
Disturb module, statistical analysis module, expert intelligence judgment module, data analysis module, data export and generation reporting modules, parameter
Configuration module, data acquisition module, data extraction module, data analysis module, data export and generation reporting modules connect successively
Connect, data extraction module is also associated with disappear interference module and statistical analysis module, and statistical analysis module connection expert intelligence judges
Module, man-machine administration interface module export and generate reporting modules with data and be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861357.2A CN107942205A (en) | 2017-09-20 | 2017-09-20 | A kind of independent multichannel Analysis of Partial Discharge platform |
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| CN201710861357.2A CN107942205A (en) | 2017-09-20 | 2017-09-20 | A kind of independent multichannel Analysis of Partial Discharge platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175600A (en) * | 2019-12-31 | 2020-05-19 | 浙江黑卡电气有限公司 | Multi-dimensional dynamic acquisition anti-interference comprehensive detection device and detection method |
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| CN202057761U (en) * | 2011-03-14 | 2011-11-30 | 山西省电力公司太原供电分公司 | Front module used in high-voltage crosslinked cable partial discharge on-line monitoring |
| CN102288882A (en) * | 2011-08-16 | 2011-12-21 | 重庆大学 | Partial discharge monitoring system and method for multichannel electrical equipment |
| CN202275135U (en) * | 2011-07-18 | 2012-06-13 | 西安金源电气股份有限公司 | Transformer local discharge on-line monitoring system |
| CN203249989U (en) * | 2013-03-14 | 2013-10-23 | 辽宁省电力有限公司鞍山供电公司 | Transformer partial discharge on-line monitoring system |
| CN103713240A (en) * | 2012-10-08 | 2014-04-09 | 四川金信石信息技术有限公司 | High-precision wireless cable partial discharge detector |
| CN103713245A (en) * | 2014-01-02 | 2014-04-09 | 国家电网公司 | XLPE cable partial discharge on-line monitoring system |
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2017
- 2017-09-20 CN CN201710861357.2A patent/CN107942205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202057761U (en) * | 2011-03-14 | 2011-11-30 | 山西省电力公司太原供电分公司 | Front module used in high-voltage crosslinked cable partial discharge on-line monitoring |
| CN202275135U (en) * | 2011-07-18 | 2012-06-13 | 西安金源电气股份有限公司 | Transformer local discharge on-line monitoring system |
| CN102288882A (en) * | 2011-08-16 | 2011-12-21 | 重庆大学 | Partial discharge monitoring system and method for multichannel electrical equipment |
| CN103713240A (en) * | 2012-10-08 | 2014-04-09 | 四川金信石信息技术有限公司 | High-precision wireless cable partial discharge detector |
| CN203249989U (en) * | 2013-03-14 | 2013-10-23 | 辽宁省电力有限公司鞍山供电公司 | Transformer partial discharge on-line monitoring system |
| CN103713245A (en) * | 2014-01-02 | 2014-04-09 | 国家电网公司 | XLPE cable partial discharge on-line monitoring system |
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| CN111175600A (en) * | 2019-12-31 | 2020-05-19 | 浙江黑卡电气有限公司 | Multi-dimensional dynamic acquisition anti-interference comprehensive detection device and detection method |
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Application publication date: 20180420 |