CN105203704A - Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system - Google Patents
Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system Download PDFInfo
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- CN105203704A CN105203704A CN201510576056.6A CN201510576056A CN105203704A CN 105203704 A CN105203704 A CN 105203704A CN 201510576056 A CN201510576056 A CN 201510576056A CN 105203704 A CN105203704 A CN 105203704A
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Abstract
The invention relates to a fiber bragg grating-based remote alarm type transformer gas on-line monitoring system, comprising a monitoring center, and a controller, an oil-gas separation detector, a fiber bragg grating sensor array, an optical analyzer, a signal processing unit, a digital sampling module, a diagnosis unit, a communication module and a first sound-light alarm unit which are located at a transformer end, wherein the monitoring center is provided with a main server, a human-machine interface, a control end, a health assessment module, a health early warning module and a second sound-light alarm module. The fiber bragg grating-based remote alarm type transformer gas on-line monitoring system has the beneficial effects of eliminating coupled interference signals in long-distance transmission, realizing small cable usage amount, simple and convenient construction, high reliability and high antijamming capability, adopting a fiber bragg grating sensor to detect gas, having the advantages of being stable and reliable, high in antijamming capability, long in service life, sensitive in response and the like, and saving repair time and effectively reducing loss by arranging the communication module and an alarm device.
Description
Technical field
The present invention relates to electrical equipment monitoring technical field, specifically a kind of remote alarms formula transformer gas on-line monitoring system based on fiber grating.
Background technology
Along with the overall fast development to bulk power grid, large-sized unit, high power capacity of power industry, more and more higher technical requirement is proposed to the real-time grasp of critical electrical equipment running status.When transformer exists local overheating or shelf depreciation, the insulating oil of trouble location or solid insulation can not decomposite small molecule hydrocarbon (as CH
4, C
2h
6, C
2h
4deng) and other gases (as H
2, CO etc.).In the concentration of above-mentioned gas in fluid and oil, the concentration of inflammable gas, can be used as the diagnosis index of not fault in potential device.But traditional transformer monitoring systems exist sensitivity low, be vulnerable to electromagnetic interference (EMI), cost is high, error is large shortcoming, be difficult to meet higher technical requirement.When transformer fault, mainly notify staff by Surveillance center at present, notification procedure experienced by transformer terminal and arrives maintainer again to Surveillance center, and process is loaded down with trivial details and due to reason such as interference damage etc., easily go wrong in notification procedure.Solve the problem so need a kind of remote alarms formula transformer gas on-line monitoring system based on fiber grating badly.
Summary of the invention
Not enough for above-mentioned prior art, the invention provides a kind of remote alarms formula transformer gas on-line monitoring system based on fiber grating.
Remote alarms formula transformer gas on-line monitoring system based on fiber grating provided by the invention is achieved through the following technical solutions:
A kind of remote alarms formula transformer gas on-line monitoring system based on fiber grating, it is characterized in that: comprise Surveillance center, with the controller being positioned at transformer terminal, gas-oil separation detecting device, Fiber Bragg Grating Sensor Array, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit, described Surveillance center arranges master server, man-machine interface, control end, health evaluating module, healthy early warning module and the second acousto-optic alarm module, described master server respectively with man-machine interface, control end, health evaluating module, healthy early warning module, second acousto-optic alarm module is connected with the controller being positioned at transformer terminal, described controller respectively with gas-oil separation detecting device, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit connects, described optical analyser is connected with Fiber Bragg Grating Sensor Array.
Described Fiber Bragg Grating Sensor Array is made up of multiple fiber-optic grating sensor.
Described on-line monitoring system adopts industrial RS485 bus interface.
The invention has the beneficial effects as follows:
1, monitor signal carries out data conversion at the scene, by digital signal, data is sent to Surveillance center, and eliminate the undesired signal of long range propagation coupling, cable consumption is little, and easy construction, reliability are high, antijamming capability is strong;
2, adopt fiber-optic grating sensor to detect gas, not power consumption of fiber-optic grating sensor itself, has the advantages such as reliable and stable, antijamming capability is strong, the life-span is long, be quick on the draw;
3, communication module and warning device are set, when going wrong, transformer terminal gives the alarm in time and notifies maintenance personal rapidly, eliminates the complexity and unstable process that also need Surveillance center remote notification maintenance personal, save emergency repair time, effectively reduced the loss.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of remote alarms formula transformer gas on-line monitoring system based on fiber grating as shown in Figure 1, it is characterized in that: comprise Surveillance center, with the controller being positioned at transformer terminal, gas-oil separation detecting device, Fiber Bragg Grating Sensor Array, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit, described Surveillance center arranges master server, man-machine interface, control end, health evaluating module, healthy early warning module and the second acousto-optic alarm module, described master server respectively with man-machine interface, control end, health evaluating module, healthy early warning module, second acousto-optic alarm module is connected with the controller being positioned at transformer terminal, described controller respectively with gas-oil separation detecting device, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit connects, described optical analyser is connected with Fiber Bragg Grating Sensor Array.
Further, described Fiber Bragg Grating Sensor Array is made up of multiple fiber-optic grating sensor.
Further, described on-line monitoring system adopts industrial RS485 bus interface.
The above embodiment only represents embodiments of the present invention, and it describes comparatively concrete and detailed, but can not be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to scope.
Claims (3)
1. the remote alarms formula transformer gas on-line monitoring system based on fiber grating, it is characterized in that: comprise Surveillance center, with the controller being positioned at transformer terminal, gas-oil separation detecting device, Fiber Bragg Grating Sensor Array, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit, described Surveillance center arranges master server, man-machine interface, control end, health evaluating module, healthy early warning module and the second acousto-optic alarm module, described master server respectively with man-machine interface, control end, health evaluating module, healthy early warning module, second acousto-optic alarm module is connected with the controller being positioned at transformer terminal, described controller respectively with gas-oil separation detecting device, optical analyser, signal processing unit, digital sample module, diagnosis unit, communication module, first acousto-optic warning unit connects, described optical analyser is connected with Fiber Bragg Grating Sensor Array.
2. the remote alarms formula transformer gas on-line monitoring system based on fiber grating according to claim 1, is characterized in that: described Fiber Bragg Grating Sensor Array is made up of multiple fiber-optic grating sensor.
3. the remote alarms formula transformer gas on-line monitoring system based on fiber grating according to claim 1, is characterized in that: described on-line monitoring system adopts industrial RS485 bus interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576056.6A CN105203704A (en) | 2015-09-11 | 2015-09-11 | Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576056.6A CN105203704A (en) | 2015-09-11 | 2015-09-11 | Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system |
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| CN105203704A true CN105203704A (en) | 2015-12-30 |
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| CN201510576056.6A Pending CN105203704A (en) | 2015-09-11 | 2015-09-11 | Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system |
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| CN102998420A (en) * | 2012-10-11 | 2013-03-27 | 苏州爱知电机有限公司 | Online monitoring device for gas in transformer oil |
| CN202871052U (en) * | 2012-09-19 | 2013-04-10 | 山东电力集团公司济南供电公司 | Comprehensive monitoring alarm system used for 10kV outdoor power distribution network transformer |
| CN203275159U (en) * | 2013-05-28 | 2013-11-06 | 北京华电云通电力技术有限公司 | Device for monitoring content of CO2 gas dissolved in transformer oil |
| CN103512860A (en) * | 2012-06-19 | 2014-01-15 | 中南大学 | Method for monitoring dissolved gas in transformer oil based on terahertz wave photonic crystal fibers |
| CN103675139A (en) * | 2013-12-11 | 2014-03-26 | 上海置信电气非晶有限公司 | Online monitoring system for oil chromatography of wind power dedicated box-type substation |
| CN203561629U (en) * | 2013-11-14 | 2014-04-23 | 成都亿友科技有限公司 | Online gas monitor for transformer |
| CN104406885A (en) * | 2014-12-11 | 2015-03-11 | 广东电网有限责任公司电力科学研究院 | Dissolved hydrogen limited value sensor in power transformer oil and detection system |
| CN104792715A (en) * | 2015-05-04 | 2015-07-22 | 华北电力大学 | Fiber bragg grating hydrogen sensor used for detecting hydrogen in transformer oil |
-
2015
- 2015-09-11 CN CN201510576056.6A patent/CN105203704A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238624A (en) * | 2005-06-21 | 2008-08-06 | 巴西西门子公司 | System and method for centralized monitoring of distributed power transformer |
| CN102123164A (en) * | 2010-12-27 | 2011-07-13 | 安徽继远电网技术有限责任公司 | On-line monitoring management system for dissolved gas in transformer oil |
| CN103512860A (en) * | 2012-06-19 | 2014-01-15 | 中南大学 | Method for monitoring dissolved gas in transformer oil based on terahertz wave photonic crystal fibers |
| CN102818962A (en) * | 2012-09-07 | 2012-12-12 | 江苏有能电力自动化有限公司 | Online monitoring system of all-fiber grating power transformer |
| CN202871052U (en) * | 2012-09-19 | 2013-04-10 | 山东电力集团公司济南供电公司 | Comprehensive monitoring alarm system used for 10kV outdoor power distribution network transformer |
| CN102998420A (en) * | 2012-10-11 | 2013-03-27 | 苏州爱知电机有限公司 | Online monitoring device for gas in transformer oil |
| CN203275159U (en) * | 2013-05-28 | 2013-11-06 | 北京华电云通电力技术有限公司 | Device for monitoring content of CO2 gas dissolved in transformer oil |
| CN203561629U (en) * | 2013-11-14 | 2014-04-23 | 成都亿友科技有限公司 | Online gas monitor for transformer |
| CN103675139A (en) * | 2013-12-11 | 2014-03-26 | 上海置信电气非晶有限公司 | Online monitoring system for oil chromatography of wind power dedicated box-type substation |
| CN104406885A (en) * | 2014-12-11 | 2015-03-11 | 广东电网有限责任公司电力科学研究院 | Dissolved hydrogen limited value sensor in power transformer oil and detection system |
| CN104792715A (en) * | 2015-05-04 | 2015-07-22 | 华北电力大学 | Fiber bragg grating hydrogen sensor used for detecting hydrogen in transformer oil |
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Application publication date: 20151230 |
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