CN104266827B - 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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- CN104266827B CN104266827B CN201410375884.9A CN201410375884A CN104266827B CN 104266827 B CN104266827 B CN 104266827B CN 201410375884 A CN201410375884 A CN 201410375884A CN 104266827 B CN104266827 B CN 104266827B
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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 assessment system of circuit-breaker status, in particular, it is related to the open circuit based on mechanical performance parameter
The assessment system of device state 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 with
Whole system reliability is closely related.International conference on large HV electric systems (cigre) in 1988-1999 to the 66kv having put into operation and more than
Single pressure type sf6Chopper has carried out reliability study, totally 70708 year, because the inefficacy that operating mechanism fault causes accounts for total inefficacy
The 64.8% of number, wherein secondary electrical control and subsidiary loop fault account for the 21% of sum, and operation structure mechanical fault accounts for total event
The 43.8% of barrier.According to statistics, the mechanical breakdown such as same period does not cause serious accident to account for always for chopper tripping, malfunction, slow point and three-phase
More than the 80% of accident, and chopper major failure is operating mechanism fault, substantially due to the spy of breaker operation mechanism
Levy parameter and there occurs change.Chopper is limited to by intrinsic thinking model due in existing measuring technology and analysis method, such as
In terms of test instrunment, dynamic frequently with grating sensor, conductive plastic potentiometer measurement in current breaker mechanic property examination
Contact travel, principle measures without departing from " contact ", not only sensor precision itself is not high, and fixture installs loaded down with trivial details, hardly possible
In comprehensive description moving contact motion locus.This patent is intended to using " noncontact " sensing technology, using high speed, high-resolution shooting
Machine catches the operation conditions of chopper on/off switch process drive disk assembly, obtains chopper actuating using graphical analyses and technology of identification
Middle change of disease part moving displacement, main axis process and angle parameter, calculate breaker mechanical performance parameter, fundamentally reform
Breaker mechanic property examination method, improves parameter measurement precision and speed, and obtains circuit-breaker status exactly, thus improving
The accuracy that its running status judges.
Between above-mentioned situation, based on mechanical performance parameter acquisition circuit-breaker status and circuit-breaker status assessment is concentrated and preserve
To in data base so that later stage inquiry, become a problem anxious to be resolved in this area.
Content of the invention
The technical purpose of the present invention is to solve above-mentioned technical problem, provides one kind to be efficiently easily based on mechanical performance parameter
Circuit-breaker status assessment system and appraisal procedure, in order to produce or scientific research personnel according to querying condition inquire about required image sequence
The information such as row, mechanical performance parameter data.
For realizing above technical purpose, the technical scheme is that
Based on the circuit-breaker status assessment system of mechanical performance parameter, including with lower module:
Assessment center module, for breaker apparatus are assigned with assessment instruction, is then fed into image monitoring module；
Image monitoring module, the assessment instruction for assigning assessment center is transmitted to corresponding breaker image monitoring
Device, and send into determination module；
Determination module, still supervises in image for judging that this breaker image monitoring device is into image capture module
Survey module；
Image capture module, the breaker image sequence data for monitoring image monitoring device is acquired, and send
Enter picture recognition module；
Picture recognition module, the breaker image sequence data for gathering to image capture module carries out graphical analyses knowledge
Not, identify the drive disk assemblies such as breaker main shaft, shackle rod and send into image calibration module；
Image calibration module, for calibrating to the breaker image sequence in picture recognition module, eliminates due to shaking
The dynamic distortion leading to breaker image, and send 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, the breaker mechanic property parameter for obtaining to computing module carries out comprehensive assessment, thus
Obtain circuit-breaker status, and send into DBM；
DBM, receives the data transmitting from state estimation module, preserves to data base and provide various looking into upwards
Ask interface；
Annexation between each module is, assessment center module, image monitoring module, determination module, image acquisition mould
Block, picture recognition module, image calibration module, computing module, state estimation module, DBM sequentially connect；Wherein scheme
As monitoring modular is also individually connected with determination module.
Based on the circuit-breaker status appraisal procedure of mechanical performance parameter, step is,
1) start, activation system main power；
2) assessment center module assigns assessment instruction to breaker apparatus, forwards assessment center to assign by image monitoring module
Assessment instruction to corresponding breaker image monitoring device, whether this breaker image monitoring device is judged by determination module
Image changes, if change entering into image capture module, otherwise maintains image monitoring module, then by image acquisition mould
The breaker image sequence data that block is monitored to image monitoring device is acquired, and is then fed in picture recognition module using figure
As analysis recognizer identifies the drive disk assemblies such as breaker main shaft, shackle rod, it is re-fed in image calibration module utilizing school
Quasi- algorithm is calibrated to breaker image sequence, eliminates and leads to the distortion of breaker image due to vibration, sends into afterwards and calculates
Calculate the mechanical property parameter of breaker trip, divide-shut brake speed and movement locus in module, be re-fed in state estimation module
Comprehensive assessment is carried out to chopper according to the breaker mechanic property parameter that computing module obtains, thus obtaining circuit-breaker status,
Finally send in DBM and the data transmitting from state estimation module is stored in data base；Terminate, workflow exits.
The method have the benefit that:
1) picture recognition module carries out graphical analyses identification using being specifically designed for breaker image sequence data, is easy to be directed to
Property identify the drive disk assemblies such as breaker main shaft, shackle rod；
2) image calibration module, using targetedly image calibration techniques, carries out calibration and eliminates to breaker image sequence
Because vibration leads to the distortion of breaker image to facilitate user to calculate；
3) achieve the data base of polytype circuit-breaker status assessment, and realize the pipe of breaker state assessment data
Reason.
With specific embodiment, the present invention is further explained below in conjunction with the accompanying drawings.
Brief description
Accompanying drawing 1 is each module diagram of the circuit-breaker status assessment system based on mechanical performance parameter for the present invention；
Accompanying drawing 2 is the circuit-breaker status assessment system data input flow process figure based on mechanical performance parameter for the present invention.
Specific embodiment
Based on the circuit-breaker status assessment system of mechanical performance parameter, including with lower module:
Assessment center module 1, for breaker apparatus are assigned with assessment instruction, is then fed into image monitoring module；
Image monitoring module 2, the assessment instruction for assigning assessment center is transmitted to corresponding breaker image prison
Survey device, and send into determination module 3；
Determination module 3, for judging that this breaker image monitoring device is into image capture module still in image
Monitoring modular；Image capture module 4, the breaker image sequence data for monitoring image monitoring device is acquired, and
Send into picture recognition module；
Picture recognition module 5, the breaker image sequence data for gathering to image capture module carries out graphical analyses
Identification, identifies the drive disk assemblies such as breaker main shaft, shackle rod and sends into image calibration module；
Image calibration module 6, for calibrating to the breaker image sequence in picture recognition module, eliminates due to shaking
The dynamic distortion leading to breaker image, and send into computing module；
Computing module 7, for calculating the mechanical property parameter of breaker trip, divide-shut brake speed and movement locus, and send
Enter state estimation module；
State estimation module 8, the breaker mechanic property parameter for obtaining to computing module carries out comprehensive assessment, thus
Obtain circuit-breaker status, and send into DBM；
DBM 9, receives the data transmitting from state estimation module, preserves to data base and provide various looking into upwards
Ask interface；Annexation between each module is, assessment center module 1, image monitoring module 2, determination module 3, image acquisition
Module 4, picture recognition module 5, image calibration module 6, computing module 7, state estimation module 8, DBM 9 sequentially connect
Connect；Wherein image monitoring module 2 is also individually connected with determination module 3.
Based on the circuit-breaker status appraisal procedure of mechanical performance parameter, step is,
1) start, activation system main power；
2) assessment center module 1 assigns assessment instruction to breaker apparatus, is forwarded under assessment center by image monitoring module 2
The assessment instruction reaching, to corresponding breaker image monitoring device, judges this breaker image monitoring device by determination module 3
Whether image changes, if change entering into image capture module 4, otherwise maintains image monitoring module, then by image
The breaker image sequence data that acquisition module 4 is monitored to image monitoring device is acquired, and is then fed into picture recognition module 5
Middle identify the drive disk assemblies such as breaker main shaft, shackle rod using image analysis recognition caculation, be re-fed into image calibration module 6
Middle using calibration algorithm, breaker image sequence is calibrated, eliminate and the distortion of breaker image led to due to vibration, afterwards
Send into the mechanical property parameter calculating breaker trip, divide-shut brake speed and movement locus in computing module 7, the state of being re-fed into is commented
Estimate in module 8 and comprehensive assessment is carried out to chopper according to the breaker mechanic property parameter that computing module obtains, thus being broken
Road device state, finally sends in DBM 9 and for the data transmitting from state estimation module to be stored in data base；Terminate, work
Flow process exits.
Modules working condition is as follows: after system operation is got up, assessment center module 1 at any time can be to chopper
Equipment assigns assessment instruction, image monitoring module 2, determination module 3, image capture module 4, picture recognition module 5, image calibration
This nine modular concurrent of module 6, computing module 7, state estimation module 8, DBM 9 run, when assessment center 1 is to open circuit
After assessment instruction assigned by device, through determination module 3, to this breaker image monitoring device, whether image has change to image monitoring module 2
Changing and judged, if change entering into image capture module 4, in image capture module 4, image monitoring device being monitored
Breaker image sequence data be acquired, give after collection in picture recognition module 5 and carry out image recognition, send again after identification
Enter image calibration module 6 using calibration algorithm, breaker image sequence to be calibrated, eliminate and chopper figure is led to due to vibration
The distortion of picture, sends in computing module 7 afterwards and calculates breaker mechanic property parameter, be then fed into root in state estimation module 8
According to the breaker mechanic property parameter that computing module obtains, comprehensive assessment is carried out to chopper, thus obtaining circuit-breaker status,
The data transmitting state estimation module 8 afterwards is given DBM 9 and is stored in data base.
Claims (2)
1. the circuit-breaker status assessment system based on mechanical performance parameter, is characterized in that, system includes with lower module:
Assessment center module (1), for breaker apparatus are assigned with assessment instruction, is then fed into image monitoring module；
Image monitoring module (2), the assessment instruction for assigning assessment center is transmitted to corresponding breaker image monitoring
Device, and send into determination module (3)；
Determination module (3), whether the image for judging this breaker image monitoring device changes, if changed, enters
To image capture module (4), otherwise maintain image monitoring module；
Image capture module (4), the breaker image sequence data for monitoring image monitoring device is acquired, and sends into
Picture recognition module；
Picture recognition module (5), the breaker image sequence data for gathering to image capture module carries out graphical analyses knowledge
Not, identify breaker main shaft, shackle rod and send into image calibration module；
Image calibration module (6), for calibrating to the breaker image sequence in picture recognition module, eliminates due to vibration
Lead to the distortion of breaker image, and send 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), the breaker mechanic property parameter for obtaining to computing module carries out comprehensive assessment, thus obtaining
Obtain circuit-breaker status, and send into DBM；
DBM (9), receives the data transmitting from state estimation module, preserves to data base and provide various inquiries upwards
Interface；
Annexation between each module is that assessment center module (1), image monitoring module (2), determination module (3), image are adopted
Collection module (4), picture recognition module (5), image calibration module (6), computing module (7), state estimation module (8), data base
Module (9) sequentially connects；Wherein image monitoring module (2) is also individually connected with determination module (3).
2. the circuit-breaker status appraisal procedure based on mechanical performance parameter is it is characterised in that step is:
1) start, activation system main power；
2) assessment center module (1) assigns assessment instruction to breaker apparatus, is forwarded under assessment center by image monitoring module (2)
The assessment instruction reaching, to corresponding breaker image monitoring device, judges this breaker image monitoring dress by determination module (3)
Putting whether image changes, if change entering into image capture module (4), otherwise maintaining image monitoring module, then by
The breaker image sequence data that image capture module (4) is monitored to image monitoring device is acquired, and is then fed into image and knows
Identify breaker main shaft, shackle rod using image analysis recognition caculation in other module (5), be re-fed into image calibration module
(6) using calibration algorithm, breaker image sequence is calibrated in, eliminate and the distortion of breaker image is led to due to vibration, it
Send into the mechanical property parameter calculating breaker trip, divide-shut brake speed and movement locus in computing module (7) afterwards, be re-fed into shape
In state evaluation module (8), comprehensive assessment is carried out to chopper according to the breaker mechanic property parameter that computing module obtains, thus
Obtain circuit-breaker status, finally send in DBM (9) and the data transmitting from state estimation module is stored in data base；Knot
Bundle, workflow exits.
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| 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 |
| 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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