CN105527541B - A method of judgement distribution line failure tripping - Google Patents
A method of judgement distribution line failure tripping Download PDFInfo
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- CN105527541B CN105527541B CN201610030248.1A CN201610030248A CN105527541B CN 105527541 B CN105527541 B CN 105527541B CN 201610030248 A CN201610030248 A CN 201610030248A CN 105527541 B CN105527541 B CN 105527541B
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- tripping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention belongs to distribution network line operation and maintenance field more particularly to a kind of methods of judgement distribution line failure tripping.Distribution line failure tripping is divided into generic failure tripping, transmission test tripping, trial line charging tripping and extension wire four classes of tripping by this method; and the comprehensive judgement of tripping type is calculated and made by the telemetering of current data of switch remote signals associated by distribution line, protection act remote signals and circuit; in order to be controlled in time to distribution network line trip condition; it can targetedly assist carrying out power distribution network production maintenance work, to further increase distribution network line reliability.
Description
Technical field
The invention belongs to distribution network line operation and maintenance field more particularly to a kind of sides of judgement distribution line failure tripping
Method.
Background technology
With State Grid Corporation of China's " general overhaul " management system and grab the implementation of " both ends weak link " gist of a document, power saving
Power company requires power grid transport inspection department door to control the administrative power grid condition of production of the whole province and low company of the county condition of production totally, more
Add precision, flattening, carry out to lean production maintenance work；But in actual operation, each Utilities Electric Co. is to administrative electricity
Whole line tripping situations within the scope of net are controlled incomplete.
Due to regulating and controlling differentiated control, regulation and control centers at different levels only reflect that this grade is adjusted to transport inspection department door under normal circumstances
The case where line tripping unsuccessful reclosing that control center is grasped, provincial company are difficult to grasp the complete of districts and cities and county's company line substantially
The distribution line trip condition of portion's trip condition, especially the whole province is substantially unclear, also lacks effective technological means, Wu Fazhen
Property is carried out line tripping renovation effectively to reduce line tripping rate.
In conclusion controlled totally to the power distribution network condition of production to realize, more precision, flattening, lean
Change ground and carry out production maintenance work, urgently needs very much to study a kind of method of judgement distribution line failure tripping, it can
Enough targetedly auxiliary carry out power distribution network and produce maintenance work.
Currently, on the market some be related to power industry operation system research and development with implement manufacturer, also to line tripping into
The research gone in certain methods, but ripe or disclosed clear method is also had no at present, therefore, it is necessary to research and develop one kind to match
The computational methods of electric line tripping can meet generic failure tripping judgement, transmission test judgement, trial line charging tripping judgement
And extension wire tripping judges the demand of this few class line tripping；And need in calculating process, occupying system resources are few, right
CPU and request memory are low, and the characteristics of support automatic and manual calculations.
Invention content
It is a primary object of the present invention to provide a kind of method of judgement distribution line failure tripping, accurately sentenced with meeting
Break and the demand of line tripping type, achieve the effect that judgement promptly and accurately, solves distribution network line trip condition and be difficult in time
The problem of control.
To solve the above-mentioned problems, the present invention provides a kind of method of judgement distribution line failure tripping, this method packets
Include following steps：
1）Distribution line failure tripping is divided into generic failure tripping, transmission test trips, trial line charging trips and spare
Four class of line tripping；
The generic failure tripping is divided into as reclosing success tripping and reclosing two classes of unsuccessful tripping；
The transmission test tripping refers to distribution line switch caused by carrying out transmission test operation and is produced with protection act
Raw tripping；
The trial line charging tripping refers to what distribution line switch caused by carrying out trial line charging operation was generated with protection act
Tripping；
The extension wire tripping refers to the tripping that switch is generated with protection act caused by extension wire switching；
2）Switch derives from " dividing ", " conjunction " signal and the protection of the switchgear on distribution line with protection signal
Action state signal；The telemetering of current for obtaining the switch remote signals associated by distribution line, protecting remote signals and circuit
Data, are calculated and are judged, finally obtain the type of tripping as a result, decision process is as follows:
A) generic failure tripping is determine whether：The upper position of the switch data that there is " separating brake " at some time point, and
In 1 minute at the time point, there are the data of any one protection act measuring point on corresponding protection act data, that is, circuit,
Then judge that the circuit trips for generic failure, and is judged as a result, dividing into reclosing success tripping and overlapping according to reclosing
The unsuccessful tripping of lock；
B) transmission test tripping is determine whether：Transmission test tripping judges it is on the basis that generic failure tripping judges
On, judge whether the current value of continuous two points is less than threshold values, while 15 minutes memories before this to the circuit before this
It is " combined floodgates " in " combined floodgate " data and final state, is determined as transmission test tripping if setting up；Or the circuit herein it
The current value of the first two point is more than threshold values, and centered on the point, whether the electric current of former and later two points is less than threshold values, if setting up
It is determined as that transmission test trips；Or if the circuit deposits repair ticket at the time point, also it is determined as that transmission test trips；
C) trial line charging tripping is determine whether：Trial line charging tripping judge to be divided on the basis of transmission test tripping judges
There are " combined floodgate " data in analysis, and it is " combined floodgate " to switch final state, is determined as trial line charging if meeting before this in 5 seconds
Tripping；
D) determine whether that extension wire trips：
Extension wire tripping judge to be judged before this in 2 days, current value on the basis of transmission test tripping judges
Whether it is the threshold values being arranged less than some always, and the previous day is all the state closed, and is determined as that extension wire is jumped if meeting
Lock.
Preferably, the step of reclosing judgement is, when in switching signal in 30 seconds it is existing have again comprising SOE do not include
The data of SOE take the last one not on off state for the point of SOE to take the switch of the last one point when not meeting the above situation
State；Reclosing success if first current value is greater than threshold values after switch is determined as that reclosing success trips；After coincidence
Electric current be then determined as the unsuccessful tripping of reclosing if it is less than 70% of electric current before tripping.
Preferably, this method further includes calculating line tripping duration step,
1) normal to calculate：
If reclosing success, restore duration=reclosure time-tripping time of origin；
If reclosing is failed, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping, when a nearest switch being taken to be combined into recovery time-tripping generation
Between=restore duration；
B. the time that first electric current restores in 15 days is calculated, when nearest switch before first electric current recovery time being taken to close
Between, then this when m- tripping time of origin=recovery duration；
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration；
2) if reclosing is failed and restores duration less than 30 seconds：
Restore duration=reclosure time-tripping time of origin；
If 3) reclosing success and restore duration it is very long, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping, then a nearest switch is taken to be combined into recovery time-tripping generation
Time=recovery duration；
B. the time that first electric current restores in 15 days is calculated, when nearest switch before first electric current recovery time being taken to close
Between, then this when m- tripping time of origin=recovery duration；
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration.
Described method provide a kind of methods of judgement distribution line failure tripping, pass through the switch associated by distribution line
The telemetering of current data of remote signals, protection act remote signals and circuit are calculated and are done the comprehensive judgement to trip, with
Convenient for controlling distribution network line trip condition in time, can targetedly assist carrying out power distribution network production maintenance work, from
And further increase distribution network line reliability.
Description of the drawings
Fig. 1 is distribution line failure tripping familygram of the present invention；
Fig. 2 is the flow chart of judgement distribution line failure trip method of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Fig. 1 show distribution line failure tripping familygram of the present invention, and Fig. 2 is judgement distribution of the present invention
The flow chart of line fault trip method, the preferred implementation for representing distribution line failure trip method according to the present invention are real
Example.Sentenced according to the embodiment, including generic failure tripping, transmission test tripping, trial line charging tripping and extension wire tripping
Fixed four parts, are implemented by following steps.
Step 1：Judge generic failure tripping：
The upper position of the switch that there is " separating brake " at some time point（Division）Data, and in 1 minute at the time point,
There are corresponding protection act data（The data of any one protection act measuring point on circuit）, that is, it is judged to the line tripping.
Step 2：Determine whether that transmission test trips：
Meet following either condition, is then judged as that transmission test trips.
If 2.1, judge the electric current of preceding 2 points when tripping have both less than threshold values (main transformer threshold values is 2, circuit threshold values for 1),
Then it is judged as that transmission test trips；
If 2.2, judging that (main transformer threshold values is for 2, circuit threshold values there are one threshold values is more than for the electric currents of preceding 2 points when tripping
1) it is exactly transmission test, then to judge whether the electric current of former and later two points by this centered on putting is less than threshold values less than threshold values again
It trips, is not otherwise；
2.3, judge that whether occurring 2 times or more in a front/rear hour trips, and current value is less than 3A during this, then
It is determined as that transmission test trips；
2.4, judge that the circuit/main transformer whether there is the repair ticket at the time point if there is repair ticket, be then judged to being driven
Experiment tripping.
Step 3：Whether calculate is trial line charging tripping：
Calculated on the basis of transmission test, divide-shut brake in 5 seconds in transmission test, final state to close a floodgate and first five
There is switch to close in second
Step 4：Whether calculate is extension wire tripping：
In transmission test, before emergency stop valve trip in 2 days, switching current be always less than threshold values 1 (maximum value be less than 1), and it is preceding
One day is all the state closed（The state being not turned off）It is considered as extension wire tripping.
Step 5：Calculate line tripping duration：
1) normal to calculate
If reclosing success, restore duration=reclosure time-tripping time of origin.
If reclosing is failed, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping (in 1 day), a nearest switch is taken to be combined into recovery time-tripping
Time of origin=recovery duration.
B. the time that first electric current restores in 15 days is calculated, when nearest switch before first electric current recovery time being taken to close
Between, then this when m- tripping time of origin=recovery duration.
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration.
2) if reclosing is failed and restores duration less than 30 seconds
Restore duration=reclosure time-tripping time of origin.
If 3) reclosing success and restore duration it is very long, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping (in 1 day), then a nearest switch is taken to be combined into recovery time-jump
Lock time of origin=recovery duration
B. the time that first electric current restores in 15 days is calculated, when nearest switch before first electric current recovery time being taken to close
Between, then this when m- tripping time of origin=recovery duration.
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration.
So far, this method is implemented to complete, and the above is only a kind of preferred implementation method of the present invention, it is noted that
For those skilled in the art, without departing from the technical principles of the invention, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Finally it should be noted that：The above embodiment is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Invention is explained in detail with reference to aforementioned embodiment for pipe, it will be understood by those of ordinary skill in the art that：Its according to
It can so modify to the technical solution recorded in aforementioned each embodiment, or which part technical characteristic is equal
It replaces；And these modifications or replacements, each embodiment technical solution of the present invention that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (3)
1. a kind of method of judgement distribution line failure tripping, which is characterized in that this approach includes the following steps：
1）Distribution line failure tripping is divided into generic failure tripping, transmission test tripping, trial line charging tripping and extension wire
Trip four classes；
The generic failure tripping is divided into as reclosing success tripping and reclosing two classes of unsuccessful tripping；
The transmission test tripping refers to what distribution line switch caused by carrying out transmission test operation was generated with protection act
Tripping；
The trial line charging tripping refers to the distribution line tripping that switch is generated with protection act caused by carrying out trial line charging operation；
The extension wire tripping refers to the tripping that switch is generated with protection act caused by extension wire switching；
2）Switch derives from " dividing ", " conjunction " signal and the protection act of the switchgear on distribution line with protection signal
Status signal；Switch remote signals, the telemetering of current data of protection remote signals and circuit associated by distribution line are obtained,
It is calculated and is judged, finally obtain the type of tripping as a result, decision process is as follows:
A) generic failure tripping is determine whether：The upper position of the switch data that there is " separating brake " at some time point, and at this
In 1 minute of time point, there are the data of any one protection act measuring point on corresponding protection act data, that is, circuit, then sentence
The fixed circuit trips for generic failure, and is judged as a result, dividing into reclosing success tripping and reclosing not according to reclosing
Success is tripped；
B) transmission test tripping is determine whether：Transmission test tripping judge to be sentenced on the basis of generic failure tripping judges
Breaking, whether the current value of continuous two points is less than threshold values to the circuit before this, while existing in 15 minutes before this and " closing
Lock " data and final state are " combined floodgate ", are determined as that transmission test trips if setting up；Or if the circuit there are when this
Between the repair ticket put, be also determined as that transmission test trips；
C) trial line charging tripping is determine whether：Trial line charging tripping judges it is on the basis of transmission test tripping judges, analysis exists
There are " combined floodgate " data before this in 5 seconds, and it is " combined floodgate " to switch final state, is determined as that trial line charging is jumped if meeting
Lock；
D) determine whether that extension wire trips：Extension wire tripping judge to be sentenced on the basis of transmission test tripping judges
Break before this in 2 days, whether current value is the threshold values being arranged less than some always, and the previous day is all the state closed, if
Satisfaction is then determined as that extension wire trips.
2. judgement distribution line failure trip method according to claim 1, it is characterised in that：It is overlapped described in this method
The step of lock judges is to have the data not comprising SOE again comprising SOE when existing in switching signal in 30 seconds, take the last one not
For the on off state of the point of SOE the on off state of the last one point is taken when not meeting the above situation；If first electricity after switch
Flow valuve is greater than threshold values then reclosing success, then is determined as that reclosing success trips；Electric current after coincidence, before tripping
The 70% of electric current is then determined as the unsuccessful tripping of reclosing.
3. judgement distribution line failure trip method according to claim 1, it is characterised in that：This method further includes calculating
Line tripping duration step,
1) normal to calculate：
If reclosing success, restore duration=reclosure time-tripping time of origin；
If reclosing is failed, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping, a nearest switch is taken to be combined into recovery time-tripping time of origin=extensive
Multiple duration；
B. the time that first electric current restores in 15 days is calculated, nearest switch before first electric current recovery time is taken to close the time,
Then this when m- tripping time of origin=recovery duration；
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration；
2) if reclosing is failed and restores duration less than 30 seconds：
Restore duration=reclosure time-tripping time of origin；
If 3) reclosing success and restore duration it is very long, calculated by following several rule-likes：
A. after a nearest electric current restores after tripping, then take a nearest switch be combined into recovery time-tripping time of origin=
Restore duration；
B. the time that first electric current restores in 15 days is calculated, nearest switch before first electric current recovery time is taken to close the time,
Then this when m- tripping time of origin=recovery duration；
The time is closed if C. not switching, then first electric current recovery time-tripping time of origin=recovery duration.
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| CN201610030248.1A CN105527541B (en) | 2016-01-18 | 2016-01-18 | A method of judgement distribution line failure tripping |
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| CN201610030248.1A CN105527541B (en) | 2016-01-18 | 2016-01-18 | A method of judgement distribution line failure tripping |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107230160A (en) * | 2017-05-08 | 2017-10-03 | 国网江西省电力公司电力科学研究院 | A kind of 10kV line trippings wrong report is intelligent to judge implementation method |
| CN107202923A (en) * | 2017-05-19 | 2017-09-26 | 国网江西省电力公司电力科学研究院 | A kind of method of automatic identification distribution line transmission test tripping operation |
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| CN107942195A (en) * | 2017-11-17 | 2018-04-20 | 国网浙江省电力公司 | Controller switching equipment monitoring method |
| CN108667004A (en) * | 2018-04-03 | 2018-10-16 | 国家电网公司 | The failure analysis method and device of distribution line |
| CN109089361B (en) * | 2018-08-31 | 2023-06-23 | 江苏新广联光电股份有限公司 | Emergency lamp control method, device and system |
| CN109490707A (en) * | 2018-11-13 | 2019-03-19 | 国网江苏省电力有限公司南通供电分公司 | The automatic analysis method of electric network fault tripping based on multidimensional multi-source grid operation data |
| CN112433127B (en) * | 2020-11-13 | 2023-05-12 | 珠海许继电气有限公司 | Fault type identification method and device based on intelligent fusion terminal of transformer area |
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Effective date of registration: 20190507 Address after: 330096 Taihao Building, Nanchang High-tech Development Zone, Jiangxi Province Co-patentee after: Shijiazhuang power supply branch, Hebei Electric Power Co., Ltd. Patentee after: Tai Hao software incorporated company Address before: 330096 Taihao Building, Nanchang High-tech Development Zone, Jiangxi Province Patentee before: Tai Hao software incorporated company |
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Granted publication date: 20181026 Termination date: 20200118 |