CN104266827A - Circuit breaker state evaluation system and method based on mechanical performance parameters - Google Patents
Circuit breaker state evaluation system and method based on mechanical performance parameters Download PDFInfo
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- CN104266827A CN104266827A CN201410375884.9A CN201410375884A CN104266827A CN 104266827 A CN104266827 A CN 104266827A CN 201410375884 A CN201410375884 A CN 201410375884A CN 104266827 A CN104266827 A CN 104266827A
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Abstract
The invention discloses a circuit breaker state evaluation system and method based on mechanical performance parameters so that an efficient and convenient circuit breaker state evaluation system based on mechanical performance parameters can be provided and production or scientific research personnel can conveniently query needed information such as the image sequence, the mechanical performance parameters and data according to the query condition. The system is formed by connecting an evaluation center module (1), an image monitoring module (2), a judgment module (3), an image acquisition module (4), an image recognition module (5), an image calibration module (6), a calculation module (7), a state evaluation module (8) and a database module (9) in sequence. Through the software system, the information of the image sequence of the circuit breaker can be processed efficiently, effective mechanical performance parameters are extracted from the image sequence and stored in a database to provide a query interface to the high level, and the circuit breaker state evaluation system and method based on mechanical performance parameters are applicable to the field of state evaluation of various types of circuit breakers.
Description
Technical field
The present invention relates to the evaluating system of circuit-breaker status, in particular, relate to the evaluating system based on the circuit-breaker status of mechanical performance parameter and appraisal procedure technical field.
Background technology
Primary cut-out operation of power networks, control in play vital effect, its run, safeguard and maintenance situation and whole system reliability closely related.International conference on large HV electric systems (CIGRE) in 1988-1999 to the 66kV put into operation and above single pressure type SF
6isolating switch has carried out reliability study, totally 70708 year, and the inefficacy caused because of operating mechanism fault accounts for 64.8% of total failure number, and wherein secondary electrical control and subsidiary loop fault account for 21% of sum, and operating mechanism mechanical fault accounts for 43.8% of total failare.According to statistics, same period etc., mechanical fault did not cause serious accident to account for more than 80% of total accident for isolating switch tripping, malfunction, slow point and three-phase, and isolating switch major failure is operating mechanism fault, in essence because the characteristic parameter of breaker operation mechanism there occurs change.Isolating switch is owing to existing measuring technology and analytical approach being subject to the limitation of intrinsic thoughtcast, as in testing tool, grating sensor, conductive plastic potentiometer is often adopted to measure moving contact stroke in current breaker mechanic property test, principle does not depart from " contact " to measure, not only the precision of sensor own is not high, and fixture is installed loaded down with trivial details, is difficult to describe moving contact motion locus comprehensively.This patent is intended to adopt " noncontact " sensing technology, high speed, high-resolution camera is utilized to catch the operation conditions of isolating switch on/off switch process drive disk assembly, graphical analysis and recognition technology is adopted to obtain progress of disease component movement displacement in isolating switch actuating, main axis process and angle parameter, calculate breaker mechanical performance parameter, fundamentally reform breaker mechanic property method of testing, improve parameter measurement precision and speed, and obtain circuit-breaker status exactly, thus improve the accuracy of its running status judgement.
Between above-mentioned situation, concentrate based on mechanical performance parameter acquisition circuit-breaker status and by circuit-breaker status assessment and be saved in database so that later stage inquiry, become a problem anxious to be resolved in this area.
Summary of the invention
Technical purpose of the present invention solves the problems of the technologies described above, there is provided a kind of efficient easily based on circuit-breaker status evaluating system and the appraisal procedure of mechanical performance parameter, so that production or scientific research personnel are according to information such as querying condition inquiry required image sequence, mechanical performance parameter and data.
For realizing above technical purpose, technical scheme of the present invention is:
Based on the circuit-breaker status evaluating system of mechanical performance parameter, comprise with lower module:
Assessment center module, for assigning assessment instruction to breaker apparatus, then sends into image monitoring module;
Image monitoring module, assessment instruction assessment center assigned for image monitoring module is transmitted to corresponding isolating switch image monitoring device, and sends into determination module;
Determination module, for judging that this isolating switch image monitoring device enters into image capture module or in image monitoring module;
Image capture module, gathers for the isolating switch image sequence data of being monitored by image monitoring device, and sends into picture recognition module;
Picture recognition module, for carrying out graphical analysis identification to the isolating switch image sequence data of image capture module collection, identifying the drive disk assembly such as breaker main shaft, shackle rod and sending into image calibration module;
Image calibration module, for calibrating the isolating switch image sequence in picture recognition module, eliminating owing to vibrating the distortion causing isolating switch image, and sending into computing module;
Computing module, for calculating the mechanical property parameter of breaker trip, divide-shut brake speed and movement locus, and sends into state estimation module;
State estimation module, carries out comprehensive assessment for the breaker mechanic property parameter obtained computing module, thus obtains circuit-breaker status, and sends into database module;
Database module, receives the data transmitted from state estimation module, is saved to database and upwards provides various query interface;
Annexation between each module is, assessment center module, image monitoring module are sequentially connected by determination module, image capture module, picture recognition module, image calibration module, computing module, state estimation module, database module; Wherein image monitoring module is also connected with determination module separately.
Based on the circuit-breaker status appraisal procedure of mechanical performance parameter, step is,
1) start, start up system general supply;
2) assessment center module assigns assessment instruction to breaker apparatus, the assessment instruction assigned by image monitoring module forwards assessment center is to corresponding isolating switch image monitoring device, whether image changes to judge this isolating switch image monitoring device by determination module, image capture module is entered into if changed, otherwise maintain image monitoring module, by image capture module, the isolating switch image sequence data that image monitoring device is monitored is gathered again, then sending in picture recognition module utilizes graphical analysis recognizer to identify breaker main shaft, the drive disk assemblies such as shackle rod, send into again in image calibration module and utilize calibration algorithm to calibrate isolating switch image sequence, eliminate owing to vibrating the distortion causing isolating switch image, send in computing module afterwards and calculate breaker trip, the mechanical property parameter of divide-shut brake speed and movement locus, send into the breaker mechanic property parameter obtained according to computing module in state estimation module again and comprehensive assessment is carried out to isolating switch, thus obtain circuit-breaker status, finally to send into the data that transmit from state estimation module in database module stored in database, terminate, workflow exits.
Advantageous Effects of the present invention is:
1) picture recognition module uses and carries out graphical analysis identification for isolating switch image sequence data specially, is convenient to identify the drive disk assembly such as breaker main shaft, shackle rod targetedly;
2) image calibration module adopts image calibration techniques targetedly, carries out calibration eliminate because vibration causes the distortion of isolating switch image to calculate to facilitate user to isolating switch image sequence;
3) achieve the database of polytype circuit-breaker status assessment, and realize the management of circuit-breaker status assessment data.
Below in conjunction with the drawings and specific embodiments, the present invention is further explained.
Accompanying drawing explanation
Accompanying drawing 1 is each module diagram of circuit-breaker status evaluating system that the present invention is based on mechanical performance parameter;
Accompanying drawing 2 is the circuit-breaker status evaluating system data input stream journey figure that the present invention is based on mechanical performance parameter.
Embodiment
Based on the circuit-breaker status evaluating system of mechanical performance parameter, comprise with lower module:
Assessment center module 1, for assigning assessment instruction to breaker apparatus, then sends into image monitoring module;
Image monitoring module 2, assessment instruction assessment center assigned for image monitoring module is transmitted to corresponding isolating switch image monitoring device, and sends into determination module 3;
Determination module 3, for judging that this isolating switch image monitoring device enters into image capture module or in image monitoring module;
Image capture module 4, gathers for the isolating switch image sequence data of being monitored by image monitoring device, and sends into picture recognition module;
Picture recognition module 5, for carrying out graphical analysis identification to the isolating switch image sequence data of image capture module collection, identifying the drive disk assembly such as breaker main shaft, shackle rod and sending into image calibration module;
Image calibration module 6, for calibrating the isolating switch image sequence in picture recognition module, eliminating owing to vibrating the distortion causing isolating switch image, and sending into computing module;
Computing module 7, for calculating the mechanical property parameter of breaker trip, divide-shut brake speed and movement locus, and sends into state estimation module;
State estimation module 8, carries out comprehensive assessment for the breaker mechanic property parameter obtained computing module, thus obtains circuit-breaker status, and sends into database module;
Database module 9, receives the data transmitted from state estimation module, is saved to database and upwards provides various query interface;
Annexation between each module is, assessment center module 1, image monitoring module 2 are sequentially connected by determination module 3, image capture module 4, picture recognition module 5, image calibration module 6, computing module 7, state estimation module 8, database module 9; Wherein image monitoring module 2 is also connected with determination module 3 separately.
Based on the circuit-breaker status appraisal procedure of mechanical performance parameter, step is,
1) start, start up system general supply;
2) assessment center module 1 pair of breaker apparatus assigns assessment instruction, assessment instruction that assessment center assigns is forwarded to corresponding isolating switch image monitoring device by image monitoring module 2, whether image changes to judge this isolating switch image monitoring device by determination module 3, image capture module 4 is entered into if changed, otherwise maintain image monitoring module, the isolating switch image sequence data of being monitored by image capture module 4 pairs of image monitoring devices again gathers, then sending in picture recognition module 5 utilizes graphical analysis recognizer to identify breaker main shaft, the drive disk assemblies such as shackle rod, send into again in image calibration module 6 and utilize calibration algorithm to calibrate isolating switch image sequence, eliminate owing to vibrating the distortion causing isolating switch image, send in computing module 7 afterwards and calculate breaker trip, the mechanical property parameter of divide-shut brake speed and movement locus, send into the breaker mechanic property parameter obtained according to computing module in state estimation module 8 again and comprehensive assessment is carried out to isolating switch, thus obtain circuit-breaker status, finally to send into the data that transmit from state estimation module in database module 9 stored in database, terminate, workflow exits.
Modules working condition is as follows: after system cloud gray model gets up, assessment center module 1 can assign assessment instruction to breaker apparatus at any time, image monitoring module 2, determination module 3, image capture module 4, picture recognition module 5, image calibration module 6, computing module 7, state estimation module 8, these nine modular concurrent of database module 9 run, after assessment center 1 pair of isolating switch assigns assessment instruction, through determination module 3, to this isolating switch image monitoring device, whether image changes image monitoring module 2 judges, image capture module 4 is entered into if changed, in image capture module 4, the isolating switch image sequence data of image monitoring device monitoring is gathered, give after collection in picture recognition module 5 and carry out image recognition, sending into image calibration module 6 after identification again utilizes calibration algorithm to calibrate isolating switch image sequence, eliminate owing to vibrating the distortion causing isolating switch image, send in computing module 7 afterwards and calculate breaker mechanic property parameter, then send into the breaker mechanic property parameter obtained according to computing module in state estimation module 8 and comprehensive assessment is carried out to isolating switch, thus obtain circuit-breaker status, finally give database module 9 stored in database by the data that state estimation module 8 transmits.
Claims (2)
1. based on the circuit-breaker status evaluating system of mechanical performance parameter, it is characterized in that, system comprises with lower module:
Assessment center module (1), for assigning assessment instruction to breaker apparatus, then sends into image monitoring module;
Image monitoring module (2), assessment instruction assessment center assigned for image monitoring module is transmitted to corresponding isolating switch image monitoring device, and sends into determination module (3);
Determination module (3), for judging that this isolating switch image monitoring device enters into image capture module or in image monitoring module;
Image capture module (4), gathers for the isolating switch image sequence data of being monitored by image monitoring device, and sends into picture recognition module;
Picture recognition module (5), for carrying out graphical analysis identification to the isolating switch image sequence data of image capture module collection, identifying the drive disk assembly such as breaker main shaft, shackle rod and sending into image calibration module;
Image calibration module (6), for calibrating the isolating switch image sequence in picture recognition module, eliminating owing to vibrating the distortion causing isolating switch image, and sending into computing module;
Computing module (7), for calculating the mechanical property parameter of breaker trip, divide-shut brake speed and movement locus, and sends into state estimation module;
State estimation module (8), carries out comprehensive assessment for the breaker mechanic property parameter obtained computing module, thus obtains circuit-breaker status, and sends into database module;
Database module (9), receives the data transmitted from state estimation module, is saved to database and upwards provides various query interface;
Annexation between each module is, assessment center module (1), image monitoring module (2) are sequentially connected by determination module (3), image capture module (4), picture recognition module (5), image calibration module (6), computing module (7), state estimation module (8), database module (9); Wherein image monitoring module (2) is also connected with determination module (3) separately.
2. based on the circuit-breaker status appraisal procedure of mechanical performance parameter, it is characterized in that, step is:
1) start, start up system general supply;
2) assessment center module (1) assigns assessment instruction to breaker apparatus, the assessment instruction assigned by image monitoring module (2) forwarding assessment center is to corresponding isolating switch image monitoring device, whether image changes to judge this isolating switch image monitoring device by determination module (3), image capture module (4) is entered into if changed, otherwise maintain image monitoring module, by image capture module (4), the isolating switch image sequence data that image monitoring device is monitored is gathered again, then sending in picture recognition module (5) utilizes graphical analysis recognizer to identify breaker main shaft, the drive disk assemblies such as shackle rod, sending in image calibration module (6) utilizes calibration algorithm to calibrate isolating switch image sequence again, eliminate owing to vibrating the distortion causing isolating switch image, send into afterwards in computing module (7) and calculate breaker trip, the mechanical property parameter of divide-shut brake speed and movement locus, send into the breaker mechanic property parameter obtained according to computing module in state estimation module (8) again and comprehensive assessment is carried out to isolating switch, thus obtain circuit-breaker status, finally to send into the data that transmit from state estimation module in database module (9) stored in database, terminate, workflow exits.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510824A (en) * | 2016-01-28 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Method and system for monitoring high-voltage circuit breaker operating mechanism |
| CN110646728A (en) * | 2019-09-27 | 2020-01-03 | 国网冀北电力有限公司检修分公司 | Breaker fault analysis method and device based on moving speed of breaker contact |
| CN110648315A (en) * | 2019-09-06 | 2020-01-03 | 国网浙江省电力有限公司嘉兴供电公司 | High-voltage circuit breaker state evaluation method based on big data technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417300Y (en) * | 2009-05-31 | 2010-03-03 | 中能电力科技开发有限公司 | State monitoring system for circuit breaker |
| CN101893686B (en) * | 2010-06-11 | 2012-10-24 | 河南电力试验研究院 | Digital radiography-based breaker operating characteristic on-line detection device and method |
| CN202793771U (en) * | 2012-08-27 | 2013-03-13 | 武汉义天科技有限公司 | Breaker testing system applying high-speed charge coupled device (CCD) image-forming principle |
| CN103822781A (en) * | 2014-03-14 | 2014-05-28 | 云南电力试验研究院（集团）有限公司电力研究院 | Mechanical property detection method of non-contact breaker |
| CN103913304A (en) * | 2014-03-28 | 2014-07-09 | 云南电力试验研究院（集团）有限公司电力研究院 | Non-contact type four-in-one breaker testing and mechanical fault identification system |
-
2014
- 2014-08-01 CN CN201410375884.9A patent/CN104266827B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510824A (en) * | 2016-01-28 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Method and system for monitoring high-voltage circuit breaker operating mechanism |
| CN105510824B (en) * | 2016-01-28 | 2018-07-31 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage breaker operation mechanism monitoring method and system |
| CN110648315A (en) * | 2019-09-06 | 2020-01-03 | 国网浙江省电力有限公司嘉兴供电公司 | High-voltage circuit breaker state evaluation method based on big data technology |
| CN110648315B (en) * | 2019-09-06 | 2022-04-26 | 国网浙江省电力有限公司嘉兴供电公司 | High-voltage circuit breaker state evaluation method based on big data technology |
| CN110646728A (en) * | 2019-09-27 | 2020-01-03 | 国网冀北电力有限公司检修分公司 | Breaker fault analysis method and device based on moving speed of breaker contact |
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