CN102261948A - System for monitoring and analyzing sound of operating state of transformer on line - Google Patents
System for monitoring and analyzing sound of operating state of transformer on line Download PDFInfo
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- CN102261948A CN102261948A CN 201010574919 CN201010574919A CN102261948A CN 102261948 A CN102261948 A CN 102261948A CN 201010574919 CN201010574919 CN 201010574919 CN 201010574919 A CN201010574919 A CN 201010574919A CN 102261948 A CN102261948 A CN 102261948A
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Abstract
The invention relates to a system for monitoring and analyzing a sound of an operating state of a transformer on line. The system consists of a computer, a central processing unit, a transformer sound sensor acquisition unit, a field sound sensor acquisition unit and a high-frequency acoustic sensor, wherein the transformer sound sensor acquisition unit is arranged in the transformer; the field sound sensor acquisition unit is arranged outside the transformer; the high-frequency acoustic sensor is arranged outside an oil tank of the transformer; a graphical display functional module, a trend analysis functional module, a data report functional module and an alarm functional module are arranged in the computer; the central processing unit is in a reduced instruction-set computer (RISC) architecture and consists of a central processor and a real-time operating system; and the transformer sound sensor acquisition unit and the field sound sensor acquisition unit are ultra-wide frequency anti-shock type optical fiber transformer sound sensors. The system for monitoring and analyzing the sound of the operating state of the transformer on line can display a sound numerical value and an ultrasonic graph during the operation of the transformer in real time and can indicate and record an abnormal state of the transformer.
Description
Technical field
The invention belongs to the supervisory control of substation technical field, particularly a kind of transformer operation sound on-line monitoring and analytic system.
Background technology
Sound is a whether normal main performance of reflection transformer operation.When transformer normally moves, should send uniformly " drone " sound, if this is because the sound that the vibration of electromagnetic attracting force siliconized plate that alternating current produces during by transformer coil and transformer self is sent. produce inhomogeneous or other different sound, all belong to abnormal.
Transformer sound increases than usual, and cacophonia has following reason:
1. electrical network generation superpotential. electrical network generation single-phase earthing or when producing resonance overvoltage all can make the sound of transformer increase;
2. during the transformer overload, will make transformer send heavy " drone " sound;
3. transformer has noise, if might be owing to the loosening vibration that causes of some parts on the transformer. obviously increase with transformer sound, and during the current/voltage Non Apparent Abnormality, then may be inner folder or the screw loosening that compresses iron core, siliconized plate vibration increase is caused;
4. transformer has discharging sound, transformer has the discharging sound of " pipa ", if under night or rainy weather, see near the bushing shell for transformer blue corona or spark are arranged, if the filthy serious or equipment ply-yarn drill loose contact of porcelain spare then is described. the transformer internal discharge then is to discharge between earth-free parts static discharge or coil turn, or because shunting switch loose contact discharge;
5. transformer has cracker, illustrates that transformer inside or surface insulation puncture, and should immediately transformer be stopped using and check;
6. transformer has the water boil, and temperature sharply changes, and oil level raises, and then should be judged as seriously overheated that Transformer Winding is short-circuited or the shunting switch loose contact causes, should immediately transformer be stopped using and check.
By to above analysis of phenomenon as can be seen a lot of unusual service conditions of transformer can cause the sound of transformer to become big, judge so we can gather the state that the voice signal of transformer carries out transformer in real time, judge the internal fault or the latency fault of transformer with this.
To the sound on-line monitoring method of transformer running status, make relevant managerial personnel can in the office computer of oneself, grasp the running status that each station owner becomes at any time, so that in time make decisions, trouble-saving generation.
Summary of the invention
The purpose of this invention is to provide a kind of transformer running status sound on-line monitoring and analytic system, can show the operating sound numerical value of transformer in real time, and can provide indication and record the abnormality of transformer.
The objective of the invention is to realize by following technical proposals.
Transformer running status sound on-line monitoring of the present invention and analytic system, it is characterized in that by computing machine, the CPU (central processing unit) that is connected of computing machine therewith, respectively therewith CPU (central processing unit) be connected be located at transformer sound transducer collecting unit in the transformer, be located at the outer acoustic scene sound sensor collecting unit of transformer and be located at the outer high frequency acoustic sensor of oil tank of transformer and form, be provided with the graphical display function module in the described computing machine, the trend analysis functional module, data sheet functional module and warning function module, described CPU (central processing unit) is made of a kind of central processing unit and real time operating system of reduced instruction set computer RISC framework, when transformer puts into operation, voice signal when at first writing down one section normal operation is also stored, this section voice signal is thought normal voice signal, as judging whether normally threshold value of transformer operation, afterwards voice signal that collects in real time and the threshold value that stores are before this compared, judge the operating condition of transformer with this.
Described transformer sound transducer collecting unit is super broadband antidetonation type optical fiber transformer sound transducer collecting unit, and described acoustic scene sound sensor collecting unit is super broadband antidetonation type optical fiber transformer sound transducer collecting unit.
Described transformer sound transducer collecting unit is gathered the voice signal of the running status of transformer in real time, described acoustic scene sound sensor collecting unit is gathered near the voice signal the transformer scene, near the voice signal of the running status of the transformer that collects and the transformer scene voice signal passes to described CPU (central processing unit) simultaneously, the reduced instruction set computer RISC of this CPU (central processing unit) is by the analysis to two kinds of signals, filter on-the-spot background sound, obtain the sound of transformer running status thus.
Described CPU (central processing unit) passes to described computing machine with the voice signal of resultant transformer running status, carry out graphic presentation, trend analysis, organized data form respectively after graphical display function module in the machine, trend analysis functional module, data sheet functional module and warning function module are handled as calculated, in time send alerting signal when finding alarm condition.
Native system by super broadband antidetonation type optical fiber acoustic sensor gather send when transformer normally moves " drone " sound and gather near the sound of transformer by auxiliary super broadband antidetonation type optical fiber acoustic sensor.Near the sound of transformer that utilizes auxiliary super broadband antidetonation type optical fiber acoustic sensor to collect can filter extraneous background sounds such as thunder and lightning.By optical fiber two kinds of voice signals are sent to CPU (central processing unit), CPU (central processing unit) stores this signal, and by Computer Analysis and storage, real-time curve can draw simultaneously.
When transformer puts into operation, voice signal when at first writing down one section normal operation is also stored, this section voice signal is thought normal voice signal, afterwards voice signal that collects in real time and the information that stores are before this compared and Fuzzy Processing, judge the operating condition of transformer with this.
The invention has the beneficial effects as follows: this system helps power plant, transformer station to realize truly unmanned, can minimizing accident and maintenance cost, realize status monitoring.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, transformer running status sound on-line monitoring of the present invention and analytic system, it is characterized in that by computing machine 5, the CPU (central processing unit) 4 that is connected of computing machine 5 therewith, respectively therewith CPU (central processing unit) 4 be connected be located at the transformer sound transducer collecting unit 2 in the transformer 3 and be located at transformer 3 outer acoustic scene sound sensor collecting units 1 and form, be provided with the graphical display function module in the described computing machine 5, the trend analysis functional module, data sheet functional module and warning function module, described CPU (central processing unit) 4 is made of a kind of central processing unit and real time operating system of reduced instruction set computer RISC framework, when transformer puts into operation, voice signal when at first writing down one section normal operation is also stored, this section voice signal is thought normal voice signal, as judging whether normally threshold value of transformer operation, afterwards voice signal that collects in real time and the threshold value that stores are before this compared and Fuzzy Processing, judge the operating condition of transformer with this.
Described transformer sound transducer collecting unit 2 is super broadband antidetonation type optical fiber transformer sound transducer collecting unit, and described acoustic scene sound sensor collecting unit 1 is super broadband antidetonation type optical fiber transformer sound transducer collecting unit.
Described transformer sound transducer collecting unit 2 is gathered the voice signal of the running status of transformer in real time, described acoustic scene sound sensor collecting unit 1 is gathered near the voice signal the transformer scene, near the voice signal of the running status of the transformer that collects and the transformer scene voice signal passes to described CPU (central processing unit) 4 simultaneously, the reduced instruction set computer RISC of this CPU (central processing unit) is by the analysis to two kinds of signals, filter on-the-spot background sound, obtain the sound of transformer running status thus.
Described CPU (central processing unit) passes to described computing machine with the voice signal of resultant transformer running status, carry out graphic presentation, trend analysis, organized data form respectively after graphical display function module in the machine, trend analysis functional module, data sheet functional module and warning function module are handled respectively as calculated, in time send alerting signal when finding alarm condition.
Transformer running status sound on-line monitoring of the present invention and analytic system can show operating sound numerical value of transformer and ultrasound wave figure in real time, and can provide indication and record to the abnormality of transformer.
Claims (4)
1. transformer running status sound on-line monitoring and analytic system, it is characterized in that by computing machine, the CPU (central processing unit) that is connected of computing machine therewith, respectively therewith CPU (central processing unit) be connected be located at transformer sound transducer collecting unit in the transformer, being located at the outer acoustic scene sound sensor collecting unit of transformer forms, be provided with the graphical display function module in the described computing machine, the trend analysis functional module, data sheet functional module and warning function module, described CPU (central processing unit) is made of a kind of central processing unit and real time operating system of reduced instruction set computer RISC framework, when transformer puts into operation, voice signal when at first writing down one section normal operation is also stored, this section voice signal is thought normal voice signal, as judging whether normally threshold value of transformer operation, afterwards voice signal that collects in real time and the threshold value that stores are before this compared, judge the operating condition of transformer with this.
2. transformer running status sound on-line monitoring according to claim 1 and analytic system, it is characterized in that described transformer sound transducer collecting unit is super broadband antidetonation type optical fiber transformer sound transducer collecting unit, described acoustic scene sound sensor collecting unit is super broadband antidetonation type optical fiber transformer sound transducer collecting unit.
3. transformer running status sound on-line monitoring according to claim 1 and analytic system, it is characterized in that described transformer sound transducer collecting unit gathers the voice signal of the running status of transformer in real time, described acoustic scene sound sensor collecting unit is gathered near the voice signal the transformer scene, near the voice signal of the running status of the transformer that collects and the transformer scene voice signal passes to described CPU (central processing unit) simultaneously, the reduced instruction set computer RISC of this CPU (central processing unit) is by the analysis to two kinds of signals, filter on-the-spot background sound, obtain the sound of transformer running status thus.
4. transformer running status sound on-line monitoring according to claim 1 and analytic system, it is characterized in that described CPU (central processing unit) passes to described computing machine with the voice signal of resultant transformer running status, carry out graphic presentation, trend analysis, organized data form respectively after graphical display function module in the machine, trend analysis functional module, data sheet functional module and warning function module are handled respectively as calculated, in time send alerting signal when finding alarm condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010574919 CN102261948A (en) | 2010-12-07 | 2010-12-07 | System for monitoring and analyzing sound of operating state of transformer on line |
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| CN 201010574919 CN102261948A (en) | 2010-12-07 | 2010-12-07 | System for monitoring and analyzing sound of operating state of transformer on line |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995194A (en) * | 2014-05-08 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Early-warning transformer based on sound monitoring |
| CN103995195A (en) * | 2014-05-08 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Sound abnormity monitoring device of transformer |
| CN105352541A (en) * | 2015-10-14 | 2016-02-24 | 国网福建省电力有限公司 | Transformer operation auxiliary monitoring system and method based on disaster prevention and reduction system of power grid |
| CN106323456A (en) * | 2016-08-18 | 2017-01-11 | 济南学泰电子科技有限公司 | Sound detecting type electric power equipment operation state monitor and sound detecting type electric power equipment operation state monitoring method |
| CN109507494A (en) * | 2017-09-15 | 2019-03-22 | 国网安徽省电力公司阜阳供电公司 | Transformer acoustic wave sensing system |
| CN109682890A (en) * | 2018-12-06 | 2019-04-26 | 六安富华智能信息科技有限公司 | A kind of improved high iron locker closure monitoring system |
| CN109870621A (en) * | 2019-03-08 | 2019-06-11 | 厦门尚为科技股份有限公司 | Run judgment method and device |
| CN110319924A (en) * | 2019-07-10 | 2019-10-11 | 上海建工材料工程有限公司 | The online fault detection method of concrete production equipment and system based on noise decibel |
| CN111442827A (en) * | 2020-04-08 | 2020-07-24 | 南京艾森斯智能科技有限公司 | Optical fiber passive online monitoring system and method for transformer winding vibration |
| CN112033496A (en) * | 2020-09-10 | 2020-12-04 | 上海星融汽车科技有限公司 | Method for judging fuel quantity abnormal change based on fuel tank liquid level monitoring |
| CN113721167A (en) * | 2021-09-08 | 2021-11-30 | 浙江日新电气有限公司 | Transformer voiceprint vibration detection system based on Internet of things framework |
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| CN2742706Y (en) * | 2004-07-30 | 2005-11-23 | 黑龙江金辰科技有限公司 | Automatic detector for acoustic equipment work state |
| CN101029855A (en) * | 2007-04-05 | 2007-09-05 | 童军 | Method and apparatus for instantaneouslly inspecting motor vehicle fault |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995194A (en) * | 2014-05-08 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Early-warning transformer based on sound monitoring |
| CN103995195A (en) * | 2014-05-08 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Sound abnormity monitoring device of transformer |
| CN105352541A (en) * | 2015-10-14 | 2016-02-24 | 国网福建省电力有限公司 | Transformer operation auxiliary monitoring system and method based on disaster prevention and reduction system of power grid |
| CN105352541B (en) * | 2015-10-14 | 2017-12-08 | 国网福建省电力有限公司 | A kind of transformer station high-voltage side bus auxiliary monitoring system and its monitoring method based on power network disaster prevention disaster reduction system |
| CN106323456A (en) * | 2016-08-18 | 2017-01-11 | 济南学泰电子科技有限公司 | Sound detecting type electric power equipment operation state monitor and sound detecting type electric power equipment operation state monitoring method |
| CN109507494A (en) * | 2017-09-15 | 2019-03-22 | 国网安徽省电力公司阜阳供电公司 | Transformer acoustic wave sensing system |
| CN109682890A (en) * | 2018-12-06 | 2019-04-26 | 六安富华智能信息科技有限公司 | A kind of improved high iron locker closure monitoring system |
| CN109870621A (en) * | 2019-03-08 | 2019-06-11 | 厦门尚为科技股份有限公司 | Run judgment method and device |
| CN110319924A (en) * | 2019-07-10 | 2019-10-11 | 上海建工材料工程有限公司 | The online fault detection method of concrete production equipment and system based on noise decibel |
| CN110319924B (en) * | 2019-07-10 | 2021-05-04 | 上海建工建材科技集团股份有限公司 | Online fault detection method and system for concrete production equipment based on noise decibels |
| CN111442827A (en) * | 2020-04-08 | 2020-07-24 | 南京艾森斯智能科技有限公司 | Optical fiber passive online monitoring system and method for transformer winding vibration |
| CN112033496A (en) * | 2020-09-10 | 2020-12-04 | 上海星融汽车科技有限公司 | Method for judging fuel quantity abnormal change based on fuel tank liquid level monitoring |
| CN113721167A (en) * | 2021-09-08 | 2021-11-30 | 浙江日新电气有限公司 | Transformer voiceprint vibration detection system based on Internet of things framework |
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Application publication date: 20111130 |