CN106711961A - Method for multidimensional evaluation of alternating current filter group breaker operation state - Google Patents
Method for multidimensional evaluation of alternating current filter group breaker operation state Download PDFInfo
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- CN106711961A CN106711961A CN201710007634.3A CN201710007634A CN106711961A CN 106711961 A CN106711961 A CN 106711961A CN 201710007634 A CN201710007634 A CN 201710007634A CN 106711961 A CN106711961 A CN 106711961A
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- Prior art keywords
- alternating current
- filter group
- current filter
- breaker
- state
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
Abstract
The present invention discloses a method for multidimensional evaluation of an alternating current filter group breaker operation state. The method refers to the fault tree analysis mode of high-voltage breaker state evaluation and employs the logic causal relationship of the whole faults of the breaker and the part faults to strengthen weak links, perform fault diagnosis and make a reasonable management and maintenance schemes, etc. according to the factors of evaluation and aiming at the subjection condition of an evaluated object, a weight idea is introduced to give a weight for each factor of evaluation so as to embody the important degree of the evaluation result influence and perform integration evaluation through operation.
Description
Technical field
The present invention relates to technical field of HVDC transmission, and in particular to a kind of various dimensions assessment alternating current filter group breaks
The method of road device running status.
Background technology
Breaker is used to be switched on or switched off circuit in normal operation, and failure situation is fast in the presence of protective relaying device
Quick-break open circuit, short circuit current is reliably connected under special circumstances (when such as automatic reclosing is on faulty line).Primary cut-out
It is the dedicated electric appliance that high-tension circuit is switched on or switched off in the case of normal or failure, its risk assessment is with Strategies of Maintenance with electric power
Equipment improvement, scientific and technological progress, management philosophy lifting, theoretical foundation develop and constantly change.
But current research contents is based on the primary cut-out put into operation in AC Substation, without specifically for straight mostly
Ac filter field circuit breaker in stream current conversion station.And during actual O＆M, it has been found that ac filter field circuit breaker is different
In normal circuit breaker, due to wave filter group capacity big (capacitive), switching frequently, so with general AC Substation in use it is disconnected
Road device is compared, for DC converter station alternating current filter switching breaker in addition to it should meet generally conventional requirement, it is necessary to it is full
Sufficient breaker fracture recovery voltage (Transient Recover Voltage, TRV) is higher, cut-out capacitance current is bigger and matches somebody with somebody
The particular/special requirements such as standby phase selection function are faced with more harsh operating mode.
The content of the invention
In view of the shortcomings of the prior art, break it is an object of the invention to provide a kind of various dimensions assessment alternating current filter group
The method of road device running status, so that the risk existed to breaker carries out accurate evaluation.
To achieve these goals, the present invention is adopted the technical scheme that：
A kind of appraisal procedure of the single-phase repeated breakdown risk of alternating current filter group breaker, including step：
Obtain the overall firsthand information of alternating current filter group breaker, operational data, checking experiment data and other moneys
Material, described other data include the operation of same category of device, repair the situation of examination, defect and failure；
Obtain the walkaround inspection data and checking experiment data of alternating current filter group each part of breaker, the part bag
Include body, equalizing capacitor and operating mechanism；
Each state is obtained in the various data of overall and part from alternating current filter group breaker, according to default button
Divider is then deducted points to each state, and default deduction of points rule includes being the default basic deduction of points value of each state, weight system
Number and standard of deducting point, are multiplied by basic deduction of points weight coefficient and obtain the value that should deduct points；
It is overall and three parts that single-phase deduction of points value according to each state calculates alternating current filter group breaker respectively
Total deduction of points value, according to total deduction of points value, to alternating current filter group breaker, the O＆M risk of overall and three parts is commented
Level.
The invention discloses a kind of appraisal procedure of the single-phase repeated breakdown risk of alternating current filter group breaker, the method ginseng
According to the failure tree analysis (FTA) mode that high-voltage circuit-breaker status are evaluated, according to breaker overall failure and the logic cause and effect of component failure
Relation, strengthens weak link, carries out fault diagnosis, formulates rational management and maintenance program etc..It is final according to multiple evaluate because
Element introduces weight thought for being evaluated the situation that is subordinate to of object, a weight is assigned to each factor of evaluation, to embody it
For the significance level that evaluation result influences, overall merit is carried out by computing.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method for various dimensions assessment alternating current filter group the High Voltage Circuit Breaker Condition of the present invention.
Specific embodiment
For the situation of prior art, it is necessary to which the ac filter field circuit breaker for DC converter station restudies quantization
Method and parameter, the on the one hand common feature based on primary cut-out, the on the other hand spy based on ac filter field circuit breaker
Different behaviour in service, the various internal and external factors to influenceing high-voltage circuit-breaker status carry out comprehensive analysis, finally to primary cut-out shape
State and risk are evaluated, and its operation conditions and health condition are grasped accurately and in time, are that the normal of equipment is used and maintenance is carried
For foundation.
Alternating current filter group described herein breaker is the exchange filter of the DC transmission system current conversion station of 220kV and the above
Bo Qi groups breaker, below the latent defect to alternating current filter group breaker important component be estimated, and according to commenting
Estimate result and propose Pre-control measures and O＆M strategy.
According to the method that status of electric power is evaluated, finishing analysis are carried out to following four classes data, as ACF breakers
Quantity of state：
(1) firsthand information
The firsthand information of equipment mainly includes：Order technical specification, nameplate, type-test report, Manufacturing Supervision are reported, gone out
Factory's test report, transport install record, check report, install and use specification etc..
(2) operational data
The operational data of equipment mainly includes：Equipment-patrolling record, defect over the years and exception record, infrared measurement of temperature record
Deng.
(3) checking experiment data
The checking experiment data of equipment mainly includes：Service bulletin, prerun report, special test report, relevant counter arranging are held
Market condition, equipment technological transformation and critical piece replacing situation etc..
(4) other data
Other data of equipment mainly include：The operation of homotype (similar) equipment, the situation for repairing examination, defect and failure；If
Change, the change of system operation mode of standby running environment；Factor of other influences transformer safety stable operation etc..
Basic deduction of points value and weight coefficient are assigned respectively with regard to the defect failure that ACF breakers are likely to occur, and are finally calculated
Should be deducted points value, as the basis of ACF breaker O＆M risk assessment, for follow-up repair based on condition of component provides reference frame.
The standard of ACF breaker O＆M risk assessment and requirement
The risk assessment of ACF breaker O＆Ms is evaluated based on ACF circuit-breaker status, and is divided into according to the result of state evaluation
Normally, four levels such as attention, abnormal, serious, take corresponding O＆M measure accordingly.
When carrying out the evaluation of ACF circuit-breaker status, it is contemplated that ACF breakers are in configuration aspects and general porcelain knob breaker
Configuration aspects are consistent, according to the independence of each part, ACF breakers are divided into：Body, equalizing capacitor, operating mechanism etc. three
Individual part.Its state evaluation is divided into part evaluation and overall evaluation two parts.
Simultaneously, it is contemplated that ACF breakers have very big difference on applying working condition with general porcelain knob breaker, to it
Basic deduction of points value has carried out special assignment with weight coefficient, referring especially to being on December 31,1 day to 2015 January in 2000
ACF breaker historic defects failures, and current conversion station ACF groups accurate analogue simulation.
Wherein, basic deduction of points value Main Basiss with reference to such defect failure the extent of injury, respectively value be 2,4,6,8,
10, basic deduction of points value is bigger, then such defect failure is more serious for the harm of equipment, system；Weight coefficient Main Basiss are joined
The scope that such defect failure may influence is examined, respectively value 1,2,3,4, weight coefficient is bigger, and such defect failure may be
More equipment have jointly.
The ACF circuit-breaker status evaluation tables of table 1
The result and treatment principle of ACF breaker O＆M risk assessment
Calculated according to above table, obtained the deduction of points value of each state individual event, and with regard to the deduction of points value meter of each state individual event
Total deduction of points value is calculated, corresponding state evaluation criterion is shown in Table 2.
When any state amount individual event deduction of points and part add up to deduction of points simultaneously in the normal envelope of the regulation of table 2, depending on
It is normal condition；When any state amount individual event deduction of points or the total deduction of points of all quantity of states of part reach 2 regulation attention state of table,
It is considered as attention state；When any state amount individual event deduction of points reaches table 4-2 specification exceptions state or severe conditions, it is considered as abnormal shape
State or severe conditions.
Table 2ACF circuit breaker components state and evaluation deduction of points corresponding table
Finally, the evaluation result of comprehensive its part is answered in the overall evaluation of ACF breakers.When all parts are evaluated as normal shape
During state, the overall evaluation is normal condition；When either component state is attention state, abnormality or severe conditions, integrally comment
Valency should be the state of wherein most serious.Overall evaluation general comment is divided into each part total penalties sum.
Wherein, when ACF breakers are in normal condition, show that each quantity of state of the equipment is in stabilization and in code regulation
Warning value, in the range of demand value, can normally run.
When ACF breakers are in attention state, show equipment individual event (or multinomial) the quantity of state variation tendency towards close mark
Quasi- limit value direction is developed, but not less than standard limited value, or part general state amount is above standard value, can still continue to run with, but
Operating monitoring should be strengthened.
When ACF breakers are in abnormality, show that the equipment individual event important state is changed greatly, approached or slightly
Be above standard limit value, should monitor operation, and arranges interruption maintenance in good time.
ACF breakers be in severe conditions when, show the equipment individual event important state be seriously above standard limit value, it is necessary to
Interruption maintenance is arranged as early as possible.
Simultaneously, it is contemplated that the defect failure of ACF breakers can develop rapidly, expand as jeopardizing the risk that whole system is run
Hidden danger, is when having following quantity of states to reach maximum deduction of points value, no longer the breaker to be estimated O＆M risk assessment is carried out
And it is directly entered following processing routine.
1) when adding up to cut-off fault current and reach manufactory's setting, into overhaul program；
2) when accumulative mechanically actuated number of times reaches manufactory's setting, into overhaul program；
3) when SF6 gas pressures reach alarm, into processing routine of shutting off power in emergency；
4) when SF6 gas water contents are more than 600 μ L/L, into processing routine of shutting off power in emergency；
5) when all kinds of quantity of states of operating mechanism cause breaking-closing operating locking or tripping, into processing routine of shutting off power in emergency；
6) when unbalanced three-phase lines, anti-jump loop function are damaged, into processing routine of shutting off power in emergency；
7) mechanism's spring has crackle or fracture, when connecting lever, connecting rod, pull bar are broken, into processing routine of shutting off power in emergency.
Above-listed detailed description is directed to illustrating for possible embodiments of the present invention, and the embodiment simultaneously is not used to limit this hair
Bright the scope of the claims, all equivalence enforcements or change without departing from carried out by the present invention are intended to be limited solely by the scope of the claims of this case.
Claims (5)
1. a kind of method that various dimensions assess alternating current filter group the High Voltage Circuit Breaker Condition, it is characterised in that including step：
Obtain the overall firsthand information of alternating current filter group breaker, operational data, checking experiment data and other data, institute
State operation of other data including same category of device, repair the situation of examination, defect and failure；
The walkaround inspection data and checking experiment data of alternating current filter group each part of breaker are obtained, the part includes this
Body, equalizing capacitor and operating mechanism；
Each state is obtained in the various data of overall and part from alternating current filter group breaker, is advised according to default deduction of points
Then each state is deducted points, it is default deduction of points rule include for the default basic deduction of points value of each state, weight coefficient and
Standard of deducting point, is multiplied by basic deduction of points weight coefficient and obtains the value that should deduct points；
It is overall and three parts total that individual event deduction of points value according to each state calculates alternating current filter group breaker respectively
Deduction of points value, according to individual event deduction of points value and adds up to deduction of points value overall to alternating current filter group breaker and three O＆M wind of part
Graded danger.
2. the method that various dimensions according to claim 1 assess alternating current filter group the High Voltage Circuit Breaker Condition, its feature
It is,
Alternating current filter group breaker is the alternating current filter group of the DC transmission system current conversion station of 220kV and the above
Breaker.
3. the method that various dimensions according to claim 1 and 2 assess alternating current filter group the High Voltage Circuit Breaker Condition, it is special
Levy and be,
The firsthand information include order technical specification, nameplate, type-test report, Manufacturing Supervision report, delivery test report,
Transport is installed record, check report and installs and uses specification；
The operational data includes equipment-patrolling record, defect over the years and exception record and infrared measurement of temperature record；
The checking experiment data includes service bulletin, prerun report, special test report, relevant anti-implementation status, the equipment of arranging
Technological transformation and critical piece change situation.
4. the method that various dimensions according to claim 1 and 2 assess alternating current filter group the High Voltage Circuit Breaker Condition, it is special
Levy and be,
Alternating current filter group breaker is overall and three ranks of the O＆M risk of part include normal condition, attention state,
Abnormality and severe conditions；
When the entirety of alternating current filter group breaker or the individual event deduction of points value of total deduction of points value of part and subordinate's any state
When all in the range of normal condition, the entirety or part are considered as normal condition；When the entirety of alternating current filter group breaker
Or total deduction of points value of part or the individual event deduction of points value of subordinate's any state in the range of attention state when, the entirety or part
It is considered as attention state；When the entirety of alternating current filter group breaker or the individual event deduction of points value of part subordinate's any state reach it is different
During the scope of normal state or severe conditions, the entirety or part are considered as abnormality or severe conditions；
When the O＆M risk of overall and all parts is normal condition, the O＆M risk of alternating current filter group breaker is
Normal condition；When entirety or either component state are attention state, abnormality or severe conditions, alternating current filter group breaks
The O＆M risk of road device is the state of wherein most serious.
5. the method that various dimensions according to claim 4 assess alternating current filter group the High Voltage Circuit Breaker Condition, its feature
It is,
When the O＆M risk of alternating current filter group breaker is in normal condition, sends normal operation and notify；
When the O＆M risk of alternating current filter group breaker is in attention state, the notice for strengthening being monitored in operation is sent；
When the O＆M risk of alternating current filter group breaker is in abnormality, sends monitoring operation and arrange the inspection that has a power failure in good time
The notice repaiied；
When the O＆M risk of alternating current filter group breaker is in severe conditions, the notice for arranging interruption maintenance as early as possible is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710007634.3A CN106711961A (en) | 2017-01-05 | 2017-01-05 | Method for multidimensional evaluation of alternating current filter group breaker operation state |
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| CN201710007634.3A CN106711961A (en) | 2017-01-05 | 2017-01-05 | Method for multidimensional evaluation of alternating current filter group breaker operation state |
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Cited By (3)
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| CN109683044A (en) * | 2018-12-29 | 2019-04-26 | 河南辉煌城轨科技有限公司 | Power switchgear malfunction judgment method based on multi-source information |
| CN110910030A (en) * | 2019-11-29 | 2020-03-24 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Breaker health state detection method and device, computer device and storage medium |
| CN116609651A (en) * | 2023-07-20 | 2023-08-18 | 山东德源电力科技股份有限公司 | Detection method of multifunctional circuit breaker for photovoltaic |
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| CN116609651A (en) * | 2023-07-20 | 2023-08-18 | 山东德源电力科技股份有限公司 | Detection method of multifunctional circuit breaker for photovoltaic |
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Application publication date: 20170524 |