CN103364698B - Utilize the detection method of ultrasonic detecting technology quick position GIS partial discharge - Google Patents
Utilize the detection method of ultrasonic detecting technology quick position GIS partial discharge Download PDFInfo
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Abstract
The present invention relates to a kind of detection method utilizing ultrasonic detecting technology quick position GIS partial discharge, the steps include: (1) in an interval of electric power GIS, to place a ultrasonic probe respectively in each air chamber; (2) synchronous data collection is carried out to described each ultrasonic probe; (3) the data analysis contrast after each ultrasonic probe being gathered; (4) (1) extremely (3) sequentially each air chamber in other intervals of electric power GIS is detected one by one according to step.The present invention adopts the hyperchannel GIS ultrasound partial discharge of zigBee wireless sensor network transmission technology and GPS synchronous acquisition technology to detect GIS partial discharge, ultrasonic probe is placed on each independently in air chamber respectively, acquisition is sent by control display section main frame, each probe is by GPS synchronous acquisition, which thereby enhance the test efficiency of Ultrasonic Detection GIS internal discharge, realize the function of shelf depreciation in quick detection and positioning GIS, shorten detection time, overcome the difficulty detecting multi-compartment equipment in GIS commissioning test within the limited time.<!--1-->
Description
Technical field
The invention belongs to electromechanical equipment detection field, especially a kind of detection method utilizing ultrasonic detecting technology quick position GIS partial discharge.
Background technology
Each interval of electric power GIS is all adopt airproof air bound insulator to be divided into several independently SF
6air chamber, namely air bound unit, each independent air chamber communicate with each other on circuit, and mutually isolated in gas circuit, and arranging air bound can by different SF
6each electrical equipment of gaseous tension is separated, and the electrical equipment with particular/special requirement can also set up separately an air bound, not only can reduce power failure range and reduce SF when checking when overhauling
6the recovery of gas and inflation/deflation workload, but also be convenient to equipment installation in the future and enlarging.But this detects GIS partial discharge and brings inconvenience, in current detection, ultrasonic is the very effective means of one detecting GIS partial discharge, the acoustical signal that moving particle in GIS and shelf depreciation are launched can be detected, the type of defect is identified, and is positioned by the position finding highest signal level.Owing to standing, interior GIS interval is more, and each interval exists multiple air chamber, and electric pressure is higher, and GIS volume is huger, brings a lot of difficulty to test, particularly in commissioning test, there is a definite limitation pressing time to equipment, needs to improve test speed.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of and shorten detection time, improve the detection method utilizing ultrasonic detecting technology quick position GIS partial discharge of detection efficiency.
The technical solution used in the present invention is:
Utilize a detection method for ultrasonic detecting technology quick position GIS partial discharge, the steps include:
(1) in an interval of electric power GIS, place a ultrasonic probe respectively in each air chamber;
(2) synchronous data collection is carried out to described each ultrasonic probe;
(3) the data after each ultrasonic probe collection are changed, digital signal data is generated after conversion, to each analysis digital signal data contrast, as data without exception, then the air chamber conversion of the ultrasonic probe corresponding to these data at its place is installed and detect position continuation measurement, after reaching measurement point requirement, as data without exception, then can take off this air chamber ultrasonic probe; If any abnormal data, then concentrate this air chamber and place multiple ultrasonic probe, the data analysis contrast after gathering each ultrasonic probe, the position at the ultrasonic probe place of location corresponding to abnormal data, finds air chamber local anomaly discharge position;
(4) (1) extremely (3) sequentially each air chamber in other intervals of electric power GIS is detected one by one according to step.
And the (1) described each ultrasonic probe of step is all connected to a signal filtering amplifier, and this filter amplifier connects A/D converter, and A/D converter is connected with single-chip microcomputer.
And described single-chip microcomputer is integrated with the GPS module with distributed synchronization data acquisition function and wireless radio frequency modules, and single-chip microcomputer connects main frame, for the mutual of data message and analysis.
And described single-chip microcomputer is MCU module.
And data, for storing transmitting test data, by external equipment, being shown or printing or export by described MCU module and wireless radio frequency modules composition ZigBee module.
And described ultrasonic probe is 8, the number of channels with the GPS module of distributed synchronization data acquisition function is equal with ultrasonic probe quantity.
Advantage of the present invention and good effect are:
1, the present invention adopts the hyperchannel GIS ultrasound partial discharge of zigBee wireless sensor network transmission technology and GPS synchronous acquisition technology to detect GIS partial discharge, ultrasonic probe is placed on each independently in air chamber respectively, acquisition is sent by control display section main frame, each probe is by GPS synchronous acquisition, thus reduce because system transient modelling is unstable to measuring the interference caused, thus improve the test efficiency of Ultrasonic Detection GIS internal discharge, realize the function of shelf depreciation in quick detection and positioning GIS, shorten detection time, overcome the difficulty detecting multi-compartment equipment in GIS commissioning test within the limited time.
2, GIS ultrasound partial discharge of the present invention is detected as 8 passages, can realize 8 groups of probe detections simultaneously, the air chamber that each passage is separate and mutually isolated in the corresponding each gas circuit of difference, provide convenience thus for GIS partial discharge detects.
Accompanying drawing explanation
Fig. 1 is the 8 passage GIS ultrasound partial discharge structure of the detecting device block diagrams adopting zigBee wireless sensor network transmission technology and GPS synchronous acquisition technology in the present invention;
Fig. 2 is interval ultrasonic probe inside arrangenent diagram (for double-bus) of electric power GIS in the present invention.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Utilize a detection method for ultrasonic detecting technology quick position GIS partial discharge, the steps include:
(1) in an interval of electric power GIS, place a ultrasonic probe respectively in each air chamber, for double-bus in an interval, see that Fig. 2 places 8 probes altogether, a probe 1 and 2 respectively arranged by two bus air chambers, bus isolation knife and earthing air chamber 2 probe 3 and 4, a probe 6 arranged by isolating switch air chamber, the each probe 5 and 7 of CT air chamber of isolating switch air chamber both sides, 1 probe 8 arranged by outlet isolation knife and earthing air chamber, each ultrasonic probe is all connected to a signal filtering amplifier, this filter amplifier connects A/D converter, A/D converter is connected with single-chip microcomputer, convert the signal data after amplification to digital signal data thus, described single-chip microcomputer is MCU module, MCU module is integrated with the GPS module and wireless radio frequency modules with distributed synchronization data acquisition function,
(2) synchronous data collection is carried out to described each ultrasonic probe;
(3) each ultrasonic probe is carried out synchronous data collection and through conversion after each digital signal data carry out analysiss contrast, as data without exception, then the air chamber conversion of the ultrasonic probe corresponding to these data at its place is installed and detect position continuation measurement, after reaching measurement point requirement, as data without exception, then can take off this air chamber ultrasonic probe; If any abnormal data, then concentrate this air chamber and place multiple ultrasonic probe, the data analysis contrast after gathering each ultrasonic probe, the position at the ultrasonic probe place of location corresponding to abnormal data, finds air chamber local anomaly discharge position;
(4) (1) extremely (3) sequentially each air chamber in other intervals of electric power GIS is detected one by one according to step.
Data, for storing transmitting test data, by external equipment, being shown or printing or export by MCU module and wireless radio frequency modules composition ZigBee module.
Ultrasonic probe is 8, and the number of channels with the GPS module of distributed synchronization data acquisition function is equal with ultrasonic probe quantity.
Single-chip microcomputer connects main frame, and for the mutual of data message and analyze, popping one's head in sends acquisition by main frame.
Claims (2)
1. utilize a detection method for ultrasonic detecting technology quick position GIS partial discharge, the steps include:
(1) in an interval of electric power GIS, place a ultrasonic probe respectively in each air chamber, double-bus in an interval, place 8 probes altogether, a probe respectively arranged by two bus air chambers, bus isolation knife and earthing air chamber 2 probe, a probe arranged by isolating switch air chamber, the each probe of CT air chamber of isolating switch air chamber both sides, 1 probe arranged by outlet isolation knife and earthing air chamber, each ultrasonic probe is all connected to a signal filtering amplifier, this filter amplifier connects A/D converter, A/D converter is connected with single-chip microcomputer, convert the signal data after amplification to digital signal data thus, described single-chip microcomputer is MCU module, MCU module is integrated with the GPS module and wireless radio frequency modules with distributed synchronization data acquisition function,
(2) synchronous data collection is carried out to described each ultrasonic probe;
(3) the data after each ultrasonic probe collection are changed, digital signal data is generated after conversion, to each digital signal data analysis contrast, as data without exception, then the air chamber conversion of the ultrasonic probe corresponding to these data at its place is installed and detect position continuation measurement, after reaching measurement point requirement, as data without exception, then can take off this air chamber ultrasonic probe; If any abnormal data, then concentrate this air chamber and place multiple ultrasonic probe, the data analysis contrast after gathering each ultrasonic probe, the position at the ultrasonic probe place of location corresponding to abnormal data, finds air chamber local anomaly discharge position;
(4) (1) extremely (3) sequentially each air chamber in other intervals of electric power GIS is detected one by one according to step.
2. the detection method utilizing ultrasonic detecting technology quick position GIS partial discharge according to claim 1, it is characterized in that: described MCU module and wireless radio frequency modules composition ZigBee module, for storing transmitting test data, by external equipment, data are shown or prints or export.
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Families Citing this family (14)
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|---|---|---|---|---|
| CN104142177B (en) * | 2013-11-29 | 2018-04-20 | 国家电网公司 | The experimental rig of supercritical ultrasonics technology local discharge signal attenuation measurement |
| CN104407276A (en) * | 2014-11-04 | 2015-03-11 | 国网河南省电力公司电力科学研究院 | Signal acquisition device for laboratory partial discharge tests |
| CN104808106A (en) * | 2015-04-02 | 2015-07-29 | 广州供电局有限公司 | Electrical equipment local discharge positioning method and system |
| CN105588884A (en) * | 2016-03-08 | 2016-05-18 | 成都众山科技有限公司 | Remote multi-channel acoustic emission detecting terminal |
| CN105911436A (en) * | 2016-04-11 | 2016-08-31 | 国网上海市电力公司 | Supersonic wave-based partial discharge wireless monitoring system |
| CN105913631A (en) * | 2016-04-11 | 2016-08-31 | 国网上海市电力公司 | Wireless data transmission method of partial discharge wireless monitoring system |
| CN105911435A (en) * | 2016-04-11 | 2016-08-31 | 国网上海市电力公司 | Ultrasonic wave wireless sensor |
| CN105842594A (en) * | 2016-05-20 | 2016-08-10 | 国网河南省电力公司电力科学研究院 | Intelligent supersonic wave partial discharge on-line monitoring system and monitoring method |
| CN109444680A (en) * | 2018-10-23 | 2019-03-08 | 国网天津市电力公司 | GIS metal particle extent of injury judgment method |
| CN109507548A (en) * | 2018-11-08 | 2019-03-22 | 国网浙江省电力有限公司金华供电公司 | 10kV route on-pole switch charges partial discharge test method |
| CN109351952A (en) * | 2018-11-22 | 2019-02-19 | 杭州电子科技大学 | A kind of test ultrasonic wave is to the method and device thereof of molten metal Grain Refinement Effect |
| CN110243479A (en) * | 2019-06-20 | 2019-09-17 | 国网山东省电力公司济宁市任城区供电公司 | A kind of method and system improving the online fault detection accuracy rate of overhead line structures |
| CN111999620A (en) * | 2020-09-22 | 2020-11-27 | 珠海华网科技有限责任公司 | Multi-channel joint positioning method for partial discharge of power equipment |
| CN113588724B (en) * | 2021-09-29 | 2021-12-21 | 国网天津市电力公司电力科学研究院 | Defect detection method, device and equipment for cable buffer layer |
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| CN101702002A (en) * | 2009-12-07 | 2010-05-05 | 上海市电力公司 | Local discharge electroacoustic united detection positioning system and positioning method thereof |
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| CN202119871U (en) * | 2011-07-01 | 2012-01-18 | 昆明益通美尔防雷工程有限公司 | Geographic information system (GIS) partial discharge intelligent on-line monitoring device |
| CN202693740U (en) * | 2012-06-25 | 2013-01-23 | 广西电网公司电力科学研究院 | GIS (Geographic Information System) partial discharge online monitoring comprehensive processing unit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702002A (en) * | 2009-12-07 | 2010-05-05 | 上海市电力公司 | Local discharge electroacoustic united detection positioning system and positioning method thereof |
| CN102103176A (en) * | 2009-12-21 | 2011-06-22 | 上海莫克电子技术有限公司 | GIS (Geographic Information System) online monitoring system |
| CN202119871U (en) * | 2011-07-01 | 2012-01-18 | 昆明益通美尔防雷工程有限公司 | Geographic information system (GIS) partial discharge intelligent on-line monitoring device |
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