CN202196143U - GIS partial discharge on-line monitoring system - Google Patents
GIS partial discharge on-line monitoring system Download PDFInfo
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- CN202196143U CN202196143U CN2011203041912U CN201120304191U CN202196143U CN 202196143 U CN202196143 U CN 202196143U CN 2011203041912 U CN2011203041912 U CN 2011203041912U CN 201120304191 U CN201120304191 U CN 201120304191U CN 202196143 U CN202196143 U CN 202196143U
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Abstract
A GIS (Gas Insulated Switchgear) partial discharge on-line monitoring system consists of UHF (Ultra High Frequency) sensors, signal processing modules, on-site monitoring systems, a communication unit, a local diagnosis server and a local work station, wherein the UHF sensors are connected with input ends of the signal processing modules through data lines, output ends of the signal processing modules are connected with the on-site monitoring systems through data lines, output ends of the on-site monitoring systems are connected with the communication unit through data lines, and communication ports of the communication unit send data which is obtained by calculations, analyses and judgements of the on-site monitoring systems to the local work station and the local diagnosis server according to communication protocols. The GIS partial discharge on-line monitoring system of the utility model is used for the field of electrical equipment maintenance, and has a diagnosis function and an alarm function; in addition, the GIS partial discharge on-line monitoring system also has a strong anti-interference capability, and can effectively prevent the occurrences of accidents.
Description
Technical field
The utility model relates to status of electric power maintenance field, specifically, relates to a kind of all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system.
Background technology
Development along with fault diagnosis technology; The status of electric power maintenance progressively gets into practicability; And because its huge benefit and cause extensive attention in industry member; Abroad obtaining than successful experience aspect Condition-Based Maintenance Technology research and the practical application, China is also wideling popularize the application state service technique at present.Implement Condition-Based Maintenance Technology, the status monitoring of equipment and fault diagnosis technology are key points.Than other high voltage electric equipment; The all-closed gas insulating combined electrical apparatus; Be called for short GIS (Gas Insulated Switchgear), with its compact conformation, floor area is little, noise is low, no fire hazard, time between overhauls(TBO) are long, high other power equipment of reliability incomparable advantage, since appearance; Develop very fastly, obtained application more and more widely.
Shelf depreciation is the inevitable phenomenon that occurs in the electrical equipment ageing process.Measurement and local discharge characteristic quantitative analysis and processing through shelf depreciation; Can confirm whether inside electric appliance exists serious insulation hidden danger; Confirm the type of insulation damages; The scope and the order of severity, thus help the design of insulation system, the improvement of installation and the generation that the aging insulation system of replacing prevents accident.
At present, it is clear and definite gradually that the partial discharge monitoring system requirements are carried out to GIS equipment in market, and by the engineering pilot to bid on a large scale excessively, there is huge demand in market to local discharge on-line monitoring system.
Summary of the invention
The purpose of the utility model provides a kind of have diagnostic function, warning function, and antijamming capability is strong and can effectively prevent the all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system that accident takes place.
The technical scheme that realizes above-mentioned purpose is: a kind of all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system; This system is made up of UHF sensor, signal processing module, field monitoring system, communication unit, local diagnosis server and local work station; The UHF sensor is connected through the input end of data line and signal processing module; The output terminal of signal processing module is connected with the field monitoring system through data line; The output terminal of field monitoring system is connected with communication unit through data line, and the COM1 of communication unit is sent to local work station and local diagnosis server through the data of calculating, analyzing and judgement draws by communication protocol with the field monitoring system.
The antenna bandwidth of operation of UHF sensor is 300MHz ~ 2.7GHz.
Signal processing module is made up of the filtering circuit that links together through lead, amplifying circuit and detecting circuit, and to the UHF sensor acquisition to signal carry out filtering, amplification, detection, be resent to the field monitoring system.
The field monitoring system is made up of the sample circuit that links together through lead, analog to digital conversion circuit, digital filter circuit, comparator circuit, warning circuit, memory circuit and time control circuit.
After adopting technique scheme, built-in or external UHF sensor can be gathered local discharge signal, just filtering of signal, amplification, detection that the signal condition module mainly arrives the UHF sensor acquisition; Be sent to the field monitoring system; The field monitoring system is installed in the monitored equipment scene, and real time monitoring GIS equipment correlated characteristic parametric data realizes the pre-service of the GIS shelf depreciation data of collection; Realize image data in-situ digitalization and buffer memory; Through calculating, analyze and judging, accomplish the monitoring on the spot and the defective warning function of the current operation conditions of GIS equipment, be sent to local work station and local diagnosis server by COM1 by the IEC61850 communication protocol.The advantage of native system is that antijamming capability is strong, and the undesired signal that can distinguish local discharge signal and inside and outside boundary in service is like undesired signals such as opening and closing movement signal, self-test signal, radio, communication signals.The transient state ripple that can high-tension switch gear operation be produced, and the influence of other external interference signals (undesired signals such as mobile telephone signal, radar signal, motor interference, fluorescent light) minimize.Can confirm whether inside electric appliance exists serious insulation hidden danger, confirms the type of insulation damages, the scope and the order of severity, thus help the design of insulation system, the improvement of installation and the generation that the aging insulation system of replacing prevents accident.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
As shown in Figure 1; A kind of all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system; This system is made up of UHF sensor, signal processing module, field monitoring system, communication unit, local diagnosis server and local work station; The UHF sensor is connected through the input end of data line and signal processing module; The output terminal of signal processing module is connected with the field monitoring system through data line, and the output terminal of field monitoring system is connected with communication unit through data line, and the COM1 of communication unit is sent to local work station and local diagnosis server through the data of calculating, analyzing and judgement draws by communication protocol with the field monitoring system.
The antenna bandwidth of operation of UHF sensor is 300MHz ~ 2.7GHz.
Signal processing module is made up of the filtering circuit that links together through lead, amplifying circuit and detecting circuit, and to the UHF sensor acquisition to signal carry out filtering, amplification, detection, be resent to the field monitoring system.
The field monitoring system is made up of the sample circuit that links together through lead, analog to digital conversion circuit, digital filter circuit, comparator circuit, warning circuit, memory circuit and time control circuit.
The UHF sensor of the utility model adopts built-in or external, and the built-in sensors mode is adopted in the new equipment suggestion, before device fabrication, adopts integrated design with GIS.Equipment to having moved adopts the outer sensor mode, and external local discharge signal detecting sensor size and GIS match, and do not influence the normal operation of GIS.The position distribution of sensor can influence Partial Discharge Detection sensitivity, and the transducer arrangements of on-line monitoring system should be satisfied with the equipment that covering is to greatest extent monitored.For guaranteeing detection sensitivity, should fully prove and propose rational transducer arrangements scheme when system installs, and prove in detail.
Communication unit adopts and satisfies Monitoring Data transmission needed, standard, reliable on-the-spot industrial-controlled general line, Ethernet bus or fiber optic network.The communication network of on-line monitoring system and stipulations should meet the relevant regulations of the overall treatment unit of power equipment remote monitoring diagnostic center system, must support IEC61850, and through the test of IEC61850 interoperability.
Local work station has following function
1, data presentation
On-line monitoring system software possesses the real time data Presentation Function, shows that directly the office that sensor receives lets live moving.The shelf depreciation characterization parameter that software systems have that the office of listing puts that probe identity distributes and the GIS separation figure of disc insulator position and signal amplitude, phase place, the discharge frequency etc. are basic and the demonstration of various statistical nature parameters.
2, data recording function
(1) alert data uploaded of field monitoring system (Local Monitoring System, be called for short LMS) should be able to carry out this locality storage accurately and reliably; LMS should be able to correctly write down dynamic data after uploading warning; Install under the situation such as unusual and should be able to correctly set up event identifier.
(2) guarantee the security of record data, can be, fluctuate fast or slowly and fall and lose the dynamic data that has write down because of power interruption; Can not delete the dynamically recording data because of external reference; The function of artificial deletion and modification dynamically recording data is not provided; By any switch or button, can not lose or erase information recorded.
3, warning function
Can send alerting signal according to the alert data that LMS uploads, but and the alerting signal teletransmission, the warning function limit value can be revised.Warning comprises forms such as sound, light, note, and the signaling interface that can insert main control room is provided.
4, communication function
(1) the monitoring device communication is adopted and is satisfied Monitoring Data transmission needed, standard, reliable on-the-spot industrial-controlled general line, Ethernet bus or fiber optic network.
(2) communication of monitoring device and data layout satisfy on-line monitoring system communication protocol and device data modeling standard, and by above-mentioned standard Monitoring Data are linked on the local diagnosis server.
(3) can preestablish the strategy of reporting to the police to LMS
5, data history inquiry, trend analysis
Through calling the historical data on the LMS, support trend analysis, and the demonstration time period of data trend should be selectable with different update cycles such as ' hours, day, week, the moon, year '.
6, to the time function
The monitoring variable and the environmental parameter that are connected the monitoring device on the communication unit in the same transformer station should guarantee to gather at one time; Walk time error and be superior to ± 0.5s/24h, should have with LMS and local diagnosis server to the time function.
7, system management control of authority
The rights management function of addressable LMS is controlled by methods such as passwords.
8, operating system
The computer operating system of back-up system operation adopts Microsoft's windows system the most reliably.Operating system is adaptive and pass through test, guarantees the sustainable operation of on-line monitoring system software.System hardware is configured to latest configuration on the current market.
9, system upgrade
System software can be upgraded, and is in tenure of use, synchronous through system upgrade, renewal and office's discharge technique.
10 ' software interfaces
Software systems adopt the convenient interface of using of user.
11, the open requirement of data-interface
System provides following data-interface:
(a) receive the data that LMS uploads.
(b) alert data of being gathered externally is provided.
(c) other professional needed data-interface information.
Local diagnosis server has following function
1, data presentation
On-line monitoring system software possesses the real time data Presentation Function, shows that directly the office that sensor receives lets live moving.The shelf depreciation characterization parameter that software systems have that the office of listing puts that probe identity distributes and GIS (HGIS) the separation figure of disc insulator position and signal amplitude, phase place, the discharge frequency etc. are basic and the demonstration of various statistical nature parameters
2, data statistics atlas analysis function
Have PD Online amplitude cumulative chart, office put data presentation, monocycle diagram data show, in, short-term trend displayed map and basic statistics spectrogram (φ-q-n) and two-dimentional spectrogram (φ-q; φ-n; Q-n), collection of illustrative plates such as PRPD, PRPS show, and can accomplish that data laterally contrast, the stack comparing function between the different chart.
3, data analysis and diagnostic system
On-line monitoring system has intelligent diagnostics software that various defectives are recognized automatically; System carries out pattern-recognition with the signal that collects automatically; Can judge dissimilar offices discharge signal; Comprise the electrode of floating potential, free particulate, inner corona, inner cavity, bus burr, housing burr etc., and the different types of interference signal.Diagnostic system can find the immediate cause of phenomenon of the failure accurately and effectively, and its diagnostic mode also should be able to be worked under the incomplete situation of data message, avoids false-alarm to greatest extent and fails to pinpoint a disease in diagnosis.Diagnostic system is clearly pointed out warning message and diagnosis to the ins and outs of the hiding system of common field service personnel, has improved the ease for use of comprehensive diagnos system; To advanced level user then stress diagnostic system configuration flexibility and diagnostic result from illustrative.
4, data history inquiry, trend analysis
Through calling the historical data on the LMS, support trend analysis, and the demonstration time period of data trend should be selectable with different update cycles such as ' hours, day, week, the moon, year '.
5, data output function
Can the function that database data outputs to softwares such as Word or Excel automatically be put in office, perhaps can automatically database be put in office and convert sql server database or oracle database form and output into.
6, remote data transmission diagnostic function
Have functions such as Long-distance Control, diagnosis, inquiry, visit, through wide area network data in real time is sent to the remote diagnosis server and carries out unified management and diagnosis.LAN medium-long range client can pass through network mode connecting system at any time, checks up-to-date monitoring, diagnosing result.The information interaction of on-Line Monitor Device and remote diagnosis server is followed the mode of remote diagnosis server platform system construction drawing defined.
7, single incident is caught and is reported to the police
Can make it can adopt multiple alarm modes such as Threshold Alerts, related warning and trend warning through communication unit configuration LMS; Configurable a plurality of alert levels.Can catch and write down the office's discharge signal that starts warning automatically, report to the police simultaneously, reporting to the police comprises forms such as sound, light, note, and the signaling interface that can insert local work station is provided.
8, parameter is provided with function
In menu, can long-rangely carry out the parameter setting, comprise that an innings discharge signal threshold value, hardware controllable parameter are provided with etc. LMS.
9, data call function
Can carry out the calling of historical data such as date created and access time of historical data and file to LMS.
10, defect information statistical function
Can draw the signal collection of illustrative plates of each measuring point automatically according to the data of reporting to the police.Automatically the data that LMS reported are drawn, and make things convenient for the related personnel to carry out analysis and judgement.Has manual select time function simultaneously.Institute's drawing table can export to the word document and make things convenient for the preparing various kinds form to use.
11, to the time function
The monitoring variable and the environmental parameter that are connected the monitoring device on the communication unit in the same transformer station should guarantee to gather at one time; Walk time error and be superior to ± 0.5s/24h, should have with LMS and local work station to the time function.
12, system management control of authority
The rights management function of addressable LMS is controlled by methods such as passwords.
13, operating system
The computer operating system of back-up system operation adopts Microsoft's windows system the most reliably.Operating system is adaptive and pass through test, guarantees the sustainable operation of on-line monitoring system software.System hardware is configured to latest configuration on the current market.
14, system upgrade
System software can be upgraded, and is in tenure of use, synchronous through system upgrade, renewal and office's discharge technique.
15, software interface
Software systems adopt the convenient interface of using of user.
16, the open requirement of data-interface
System provides following data-interface:
(a) receive the data that LMS uploads.
(b) alert data of being gathered externally is provided.
(c) other professional needed data-interface information.
Claims (4)
1. all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system; It is characterized in that: this system is made up of UHF sensor, signal processing module, field monitoring system, communication unit, local diagnosis server and local work station; The UHF sensor is connected through the input end of data line and signal processing module; The output terminal of signal processing module is connected with the field monitoring system through data line; The output terminal of field monitoring system is connected with communication unit through data line, and the COM1 of communication unit is sent to local work station and local diagnosis server through the data of calculating, analyzing and judgement draws by communication protocol with the field monitoring system.
2. all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system according to claim 1 is characterized in that: the antenna bandwidth of operation of described UHF sensor is 300MHz ~ 2.7GHz.
3. all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system according to claim 1 and 2; It is characterized in that: signal processing module is made up of the filtering circuit that links together through lead, amplifying circuit and detecting circuit; And to the UHF sensor acquisition to signal carry out filtering, amplification, detection, be resent to the field monitoring system.
4. all-closed gas insulating combined electrical apparatus partial-discharge on-line monitoring system according to claim 1 and 2 is characterized in that: the field monitoring system is made up of the sample circuit that links together through lead, analog to digital conversion circuit, digital filter circuit, comparator circuit, warning circuit, memory circuit and time control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011203041912U CN202196143U (en) | 2011-08-19 | 2011-08-19 | GIS partial discharge on-line monitoring system |
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| CN2011203041912U CN202196143U (en) | 2011-08-19 | 2011-08-19 | GIS partial discharge on-line monitoring system |
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| CN202196143U true CN202196143U (en) | 2012-04-18 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636736A (en) * | 2012-05-10 | 2012-08-15 | 山东电力集团公司济南供电公司 | Online monitoring system for partial discharge of middle-high voltage power cable |
| CN102680867A (en) * | 2012-05-22 | 2012-09-19 | 北京杰远电气有限公司 | Device and method for on-line monitoring partial discharge of solid ring-network cabinet |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103197206A (en) * | 2013-03-12 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Electrical level scanning type ultrahigh frequency partial discharge on-line monitoring system and monitoring method |
| CN103336199A (en) * | 2013-06-21 | 2013-10-02 | 国家电网公司 | Device and method for predicting fault rate of totally-closed tube type busbar |
| CN104251962A (en) * | 2013-06-27 | 2014-12-31 | 国家电网公司 | Gas-insulation completely-enclosed combined electrical appliance monitoring device and system |
| CN104655994A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | GIS partial discharge online monitoring system |
| CN104655993A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | Transformer partial discharge online monitoring system |
| CN105703258A (en) * | 2016-03-21 | 2016-06-22 | 广东电网有限责任公司东莞供电局 | GIS switch equipment action state monitoring system and use method thereof |
-
2011
- 2011-08-19 CN CN2011203041912U patent/CN202196143U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636736A (en) * | 2012-05-10 | 2012-08-15 | 山东电力集团公司济南供电公司 | Online monitoring system for partial discharge of middle-high voltage power cable |
| CN102680867A (en) * | 2012-05-22 | 2012-09-19 | 北京杰远电气有限公司 | Device and method for on-line monitoring partial discharge of solid ring-network cabinet |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103197206A (en) * | 2013-03-12 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Electrical level scanning type ultrahigh frequency partial discharge on-line monitoring system and monitoring method |
| CN103336199A (en) * | 2013-06-21 | 2013-10-02 | 国家电网公司 | Device and method for predicting fault rate of totally-closed tube type busbar |
| CN103336199B (en) * | 2013-06-21 | 2015-04-22 | 国家电网公司 | Device and method for predicting fault rate of totally-closed tube type busbar |
| CN104251962A (en) * | 2013-06-27 | 2014-12-31 | 国家电网公司 | Gas-insulation completely-enclosed combined electrical appliance monitoring device and system |
| CN104655994A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | GIS partial discharge online monitoring system |
| CN104655993A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | Transformer partial discharge online monitoring system |
| CN105703258A (en) * | 2016-03-21 | 2016-06-22 | 广东电网有限责任公司东莞供电局 | GIS switch equipment action state monitoring system and use method thereof |
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Owner name: JIANGSU BORUN ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANJING ZHIXINDA ELECTRIC POWER AUTOMATION CO., LTD. Effective date: 20141117 |
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Free format text: CORRECT: ADDRESS; FROM: 211300 NANJING, JIANGSU PROVINCE TO: 213003 CHANGZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141117 Address after: Tianning District Hehai road 213003 Jiangsu city of Changzhou province No. 9 Patentee after: JIANGSU BORUN ELECTRICAL TECHNOLOGY CO., LTD. Address before: Hengsheng Road Economic Development Zone in Gaochun County of Nanjing City, Jiangsu province 211300 No. 5 Building No. 4 room 208-C Patentee before: Nanjing Zhixinda Electric Power Automation Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20160819 |
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| CF01 | Termination of patent right due to non-payment of annual fee |