CN104092305A - Power distribution network fault handling method - Google Patents
Power distribution network fault handling method Download PDFInfo
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- CN104092305A CN104092305A CN201410329816.9A CN201410329816A CN104092305A CN 104092305 A CN104092305 A CN 104092305A CN 201410329816 A CN201410329816 A CN 201410329816A CN 104092305 A CN104092305 A CN 104092305A
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Abstract
The invention discloses a power distribution network fault handling method adopted under the condition of fault information loss or mistakes. The method includes the following steps that (1) fault-related remote signaling information is read, wherein after receiving fault signals, a master station of a power distribution automatic system executes a forced data call on related devices; (2) fault information is corrected, wherein a united fault information identification method is used, so that influences of distribution wire mistaken-reporting accident signals are removed; (3) faults are located, wherein the faults are located through an improved 'rough set' fault locating method; (4) the faults are isolated, wherein according to fault localization, a fault section is determined and is isolated through operation of a fault region boundary switch; (5) power supply is recovered, wherein power recovery of non-fault sections is achieved. According to the method, under the conditions that delay or loss or report omission or mistaken-reporting exists in the fault signals pushed by a power distribution network fault detection device, occurrence of the faults can be correctly judged, the faults are located and isolated, and power recovery of non-fault areas is achieved.
Description
Technical field
The present invention relates to power distribution technical field, a kind of method that specifically distribution network failure under fault message disappearance or error situation is processed.
Background technology
Under normal running (operation) conditions, distribution dispatcher periodically carries out switch operation with regulating networks structure (as by season), and by network reconfiguration, balanced load, eliminates overload on the one hand, improves supply power voltage quality; Reduce on the other hand via net loss, the economy of raising system, under failure condition, more closed often operate on lock, isolated fault branch road, open some normally closed disconnecting links simultaneously, make system keep open loop running status, on all or part of another branch road of transferring to another feeder line or same feeder line of the load of fault branch.So network reconfiguration is the important means that improves power distribution system secure and economy.
After distribution network failure restores electricity and refers to that power distribution network breaks down, fault be positioned and the basis that isolates on, how research recovers the problem to the power supply in fault-free fixed point region.
Because of the problem of detecting fault line for un-ground neutral power system self or the problem of communications existence, when fault occurs, the multiple abnormal conditions such as the fault message that main station system is received may exist delay, lacks, fails to report, wrong report, and traditional distribution wire troubleshooting algorithm is only applicable to the correct complete situation of fault message.
Summary of the invention
The deficiency existing for overcoming above-mentioned prior art, the invention provides a kind of method that distribution network failure is processed, its can be under fault message disappearance or error situation the generation of correct failure judgement, and carry out location and the isolation of fault and non-incident area restored electricity.
The present invention solves the technical scheme that its technical problem takes: a kind of method that distribution network failure is processed, in order to carry out distribution network failure processing under fault message disappearance or error situation, it is characterized in that, and it comprises the following steps:
1) the relevant remote signalling information of read failure: electrical power distribution automatization system main website is received after fault-signal, and relevant device is carried out and forced data calling;
2) correct fault message: use the recognition methods of associating fault message, get rid of the impact of distribution wire wrong report trouble signal;
3) fault location: use improved " rough set " Fault Locating Method to carry out fault location;
4) Fault Isolation: determine fault section according to fault location, by operating trouble zone boundary switch, fault section is isolated;
5) restore electricity: non-fault section is restored electricity.
In said method, described in the process of relevant device execution pressure data calling, time delay is set and waits for.
In said method, described associating fault message identification comprehensively judges in conjunction with distribution wire fault-signal, transformer station's fault-signal, switch position signal, guard signal and reclosing signal exactly, carries out fault message identification.
In said method, described use improved " rough set " fault location is exactly: when fault occurs, the equipment with fault-signal of close load side is used as to failure boundary equipment, the communication abnormality of described failure boundary device power supply (DPS) side or do not fail to report abort situation is judged and produced harmful effect; The communication abnormality situation of described failure boundary machine utilization side, regards manual equipment as and processes, the processing of magnifying between emergency area.
The invention has the beneficial effects as follows, the present invention postpones, lacks, fails to report fault or wrong report fault in the situation that the fault-signal sending on detecting fault line for un-ground neutral power system exists, the correctly generation of failure judgement, and carry out location and the isolation of fault and non-incident area is restored electricity.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described:
Fig. 1 is method flow diagram of the present invention.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the present invention will be described in detail.The present invention has omitted the description of known assemblies and treatment technology and technique to avoid unnecessarily limiting the present invention.
As shown in Figure 1, the method that a kind of distribution network failure of the present invention is processed, in order to carry out distribution network failure processing under fault message disappearance or error situation, it comprises the following steps:
100, work starts.
101, the read failure remote signalling information of being correlated with: electrical power distribution automatization system main website is received after fault-signal, and relevant device is carried out and forced data calling, relevant device is being carried out in the process of forcing data calling, time delay is set and waits for, in the delay of solution fault-signal, send problem.
102, judge whether miss fault information, if relevant device is being carried out in the process of forcing data calling, for there is no the situation of signal feedback in the calling time limit, regard fault-signal as and lack and enter step 103, otherwise pierce step 104.
103, correct fault message: use the recognition methods of associating fault message, get rid of the impact of distribution wire wrong report trouble signal.Described associating fault message identification comprehensively judges in conjunction with distribution wire fault-signal, transformer station's fault-signal, switch position signal, guard signal and reclosing signal exactly, carries out fault message identification.
104, fault location: use improved " rough set " Fault Locating Method to carry out fault location; Described use improved " rough set " fault location is exactly: when fault occurs, the equipment with fault-signal of close load side is used as to failure boundary equipment, the communication abnormality of described failure boundary device power supply (DPS) side or do not fail to report abort situation is judged and produced harmful effect; The communication abnormality situation of described failure boundary machine utilization side, regards manual equipment as and processes, the processing of magnifying between emergency area.
105, Fault Isolation: determine fault section according to fault location, by operating trouble zone boundary switch, fault section is isolated.
106, restore electricity: non-fault section is restored electricity.
107, end-of-job.
Below several committed steps of the present invention are described in detail.
One, to the processing method of sending in fault-signal delay
Electrical power distribution automatization system main website receives that equipment remote signalling becomes after item, by topology search, obtain all associate device lists on the distribution wire of equipment place, armamentarium in list is forced to data calling, and suitable time-delay wait, to obtaining rapidly sufficient relevant fault information; For there is no the situation of signal feedback in the calling time limit, regard communication failure (signal deletion) equipment as and dispose.
Two, associating fault message identification
The main purpose of associating fault message identification is to get rid of the wrong report failure condition that single-point disturbance, equipment fault, execute-in-place etc. cause.
Whether electrical power distribution automatization system is not to have fault to occur and abort situation according to single failure signal determining, but implements the identification of associating fault message according to multiple related information.The information that participates in fault verification has: the actuating signal of the position of the protection information of circuit breaker position, correspondence, associated reclosing information or prepared auto restart information, accident resultant signal, on-load switch and excessively stream information, circuit decompression information, fault detector etc.Information source can be remote signalling displacement or SOE record.
The recognition methods of associating fault message is judging that fault the following condition of minimum needs occurs and sets up simultaneously: circuit breaker automatic trip; Corresponding guard signal action, or the action of accident resultant signal.
Three, use improved " rough set " algorithm to carry out fault location
The data set that is used for carrying out fault location judgement does not require integrality, and can be a rough set that has shortage of data situation.Object is to reduce even to eliminate the harmful effect that fault location is brought such as to fail to report because of communication abnormality or abnormal signal deletion, the fault of equipment fault.
The specific practice of improved " rough set " algorithm is: when fault occurs, the equipment with fault-signal of close load side is used as to failure boundary equipment, the communication abnormality of (being mains side) or do not fail to report abort situation is judged and produced harmful effect before this equipment; The communication abnormality situation of (being load side) after this equipment, regards manual equipment (equipment of unrealized power distribution automation) as and processes, and the processing of magnifying between emergency area, guarantees the loss of communication abnormality to drop to minimum.
The above is the preferred embodiment of the present invention, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications are also regarded as protection scope of the present invention.
Claims (4)
1. the method that distribution network failure is processed, in order to carry out distribution network failure processing under fault message disappearance or error situation, is characterized in that, it comprises the following steps:
1) the relevant remote signalling information of read failure: electrical power distribution automatization system main website is received after fault-signal, and relevant device is carried out and forced data calling;
2) correct fault message: use the recognition methods of associating fault message, get rid of the impact of distribution wire wrong report trouble signal;
3) fault location: use improved " rough set " algorithm to carry out fault location;
4) Fault Isolation: determine fault section according to fault location, by operating trouble zone boundary switch, fault section is isolated;
5) restore electricity: non-fault section is restored electricity.
2. the method that a kind of distribution network failure according to claim 1 is processed, is characterized in that, described in the process of relevant device execution pressure data calling, time delay is set and waits for.
3. the method that a kind of distribution network failure according to claim 1 is processed; it is characterized in that; described associating fault message identification comprehensively judges in conjunction with distribution wire fault-signal, transformer station's fault-signal, switch position signal, guard signal and reclosing signal exactly, carries out fault message identification.
4. the method that a kind of distribution network failure according to claim 1 is processed, it is characterized in that, described use improved " rough set " algorithm fault location is exactly: when fault occurs, the equipment with fault-signal of close load side is used as to failure boundary equipment, the communication abnormality of described failure boundary device power supply (DPS) side or do not fail to report abort situation is judged and produced harmful effect; The communication abnormality situation of described failure boundary machine utilization side, regards manual equipment as and processes, the processing of magnifying between emergency area.
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| CN104638618A (en) * | 2015-02-11 | 2015-05-20 | 国网山东省电力公司潍坊供电公司 | Method for quickly recovering power supply of GIS bus device after tripping |
| CN105488742A (en) * | 2015-12-23 | 2016-04-13 | 国网福建省电力有限公司 | Method for filtering misreported signals of fault indicator |
| CN105911424A (en) * | 2016-04-08 | 2016-08-31 | 国网福建省电力有限公司 | Identification method based on fault indicator false alarm signal |
| CN110690699A (en) * | 2019-07-30 | 2020-01-14 | 国网浙江省电力有限公司嘉兴供电公司 | Transformer substation intelligent detection system based on ubiquitous power Internet of things |
| CN110703135A (en) * | 2019-10-18 | 2020-01-17 | 国网福建省电力有限公司 | Full study and judgment method for fault handling of power distribution network |
| CN112162174A (en) * | 2020-09-03 | 2021-01-01 | 国电南瑞科技股份有限公司 | Distribution room fault positioning method and system based on marketing and distribution integration |
| CN113791304A (en) * | 2021-08-23 | 2021-12-14 | 珠海许继芝电网自动化有限公司 | Fault type and fault section identification method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638618A (en) * | 2015-02-11 | 2015-05-20 | 国网山东省电力公司潍坊供电公司 | Method for quickly recovering power supply of GIS bus device after tripping |
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| CN105488742A (en) * | 2015-12-23 | 2016-04-13 | 国网福建省电力有限公司 | Method for filtering misreported signals of fault indicator |
| CN105911424A (en) * | 2016-04-08 | 2016-08-31 | 国网福建省电力有限公司 | Identification method based on fault indicator false alarm signal |
| CN105911424B (en) * | 2016-04-08 | 2018-11-27 | 国网福建省电力有限公司 | A kind of recognition methods based on fault detector false positive signal |
| CN110690699A (en) * | 2019-07-30 | 2020-01-14 | 国网浙江省电力有限公司嘉兴供电公司 | Transformer substation intelligent detection system based on ubiquitous power Internet of things |
| CN110703135A (en) * | 2019-10-18 | 2020-01-17 | 国网福建省电力有限公司 | Full study and judgment method for fault handling of power distribution network |
| CN110703135B (en) * | 2019-10-18 | 2021-10-29 | 国网福建省电力有限公司 | Full study and judgment method for fault handling of power distribution network |
| CN112162174A (en) * | 2020-09-03 | 2021-01-01 | 国电南瑞科技股份有限公司 | Distribution room fault positioning method and system based on marketing and distribution integration |
| CN112162174B (en) * | 2020-09-03 | 2024-04-26 | 国电南瑞科技股份有限公司 | Station area fault positioning method and system based on marketing and distribution integration |
| CN113791304A (en) * | 2021-08-23 | 2021-12-14 | 珠海许继芝电网自动化有限公司 | Fault type and fault section identification method |
| CN113791304B (en) * | 2021-08-23 | 2024-04-09 | 珠海许继芝电网自动化有限公司 | Fault type and fault section identification method |
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Application publication date: 20141008 |