CN104237735A - Modeling and fault analysis method combining fault indicator and power distribution terminal - Google Patents
Modeling and fault analysis method combining fault indicator and power distribution terminal Download PDFInfo
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- CN104237735A CN104237735A CN201310243111.0A CN201310243111A CN104237735A CN 104237735 A CN104237735 A CN 104237735A CN 201310243111 A CN201310243111 A CN 201310243111A CN 104237735 A CN104237735 A CN 104237735A
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Abstract
The invention discloses a modeling and fault analysis method combining a fault indicator and a power distribution terminal. Turnover information of the fault indicator hung on an overhead line is sent to a distribution network automatic master station system and a dispatcher is assisted in locating a fault region through fault localization and fault region framed pattern display. According to the modeling and fault analysis method combining the fault indicator and the power distribution terminal, the fault processing efficiency of a distribution line is improved and power failure time is shortened, so that the method becomes an effective measure for improving the power supply reliability of suburb and rural power distribution networks and is one of measures which are small in investment and rapid in effect acquisition currently, and the technology popularization speed is high.
Description
Technical field
The present invention relates to electrical power distribution automatization system technology, particularly relate to a kind of modeling in conjunction with fault detector and distribution terminal and failure analysis methods.
Background technology
In May, 2009, plan that State Grid Corporation of China formally discloses to external world " strong intelligent grid ", and in the participation of personages of various circles of society and under coordinating, a large amount of research and practice work has been carried out in association area, and achieve certain achievement, can say, the intelligent grid construction of China is fully under way.
In intelligent distribution network, State Grid Corporation of China drops into large quantities of fund and carries out first and second scrap build work for distribution.The most of first class city of present stage China, the part cities of secondary grade complete distribution retrofit work substantially, such as, the distribution retrofit work on the ground such as Yinchuan, Hangzhou, Nanjing, Chengdu have passed the acceptance of work of Guo Wang company, and practical checking and accepting, intelligent power distribution network construction is quiet has pulled open curtain; Feeder automation (FA), as one of the important module of distribution automation, it provides effective support means to raising power supply reliability.
Rural power grids circuit is different is that circuit is longer with a feature of urban power distribution network, and section breaker is less, and automated information is few; In order to tackle the maintenance of rural power grids long transmission line, adopt on overhead transmission line, mount the more and more of the method for fault detector, when line failure, fault detector carries out board turning according to failed shorted electric current, auxiliary track walker's quick position fault section, accelerate first-aid repair efficiency, shorten power off time.
Along with the development of wireless communication technique, can be articulated in this part and the fault detector board turning information on distribution line is delivered in distribution automation main station system, and by the analysis of main station system, auxiliary dispatching person's localizing faults section, effectively assigns repair personnel to keep in repair to scene.
The raising of power distribution automation overall technology level has also promoted the development and construction in outskirts of a town and Rural Power Distribution Network.It is current that what pay close attention to is the power supply reliability and the rate of qualified voltage that improve outskirts of a town and Rural Power Distribution Network.
Fault detector is adopted to accelerate localization of fault, improve the fault handling efficiency of distribution line, shortening the effective means that power off time is the power supply reliability improving outskirts of a town and Rural Power Distribution Network, is also one of means of current less investment instant effect, Technique Popularizing speed.
Summary of the invention
In order to the situation solving fault detector, fault detector mixes mutually with distribution terminal, the invention provides a kind of modeling in conjunction with fault detector and distribution terminal and failure analysis methods,
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of modeling in conjunction with fault detector and distribution terminal and failure analysis methods, to the fault detector board turning information that overhead transmission line mounts be delivered in distribution network automated main station system, and by localization of fault, fault zone confine figure show come auxiliary dispatching person's localizing faults section, be made up of following steps:
(1) built on stilts fault detector equipment modeling: the function of fault detector is not limited to single remote signalling (overcurrent action), when building fault detector model, measurement signal mainly comprises three-phase over-current signal, whether three-phase current amplitude, device be online;
(2) localization of fault: because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore the start-up criterion of transformer station's outlet switch emergency stop valve trip cannot be adopted to carry out startup separator analysis, utilize the board turning information of fault detector to carry out trigger fault to monitor, oppositely find corresponding outlet switch as starting point by the action message of fault detector, then carried out the topological analysis of classic method again by this starting point downwards;
(3) figure displaying is confined in fault zone: when the judgement to equipment in fault section, will by boundary node connect feeder line section and be included, connected for fault zone node two feeder line section are all carried out painted, and with fault detector, switch for equipment border, use empty frame to be confined fault zone.
During the distribution line failure section of operational failure indicator location, fault detector information is needed to associate with feeder line section.
Operational failure indicator location distribution line failure section is with the feature difference between the distribution feeder automation of traditional cities: the failure message of traditional cities feeder automation is mainly associated with distribution-network automation switch, and outskirts of a town and Rural Power Distribution Network overhead transmission line longer, almost do not have block switch, fault detector information needs to be associated with feeder line section.
(1) localization of fault, fault isolation and fault recovery;
The real-time information that fault handling runs according to the grid structure of power distribution network and equipment, in conjunction with fault-signal, carries out the location of fault, the restoring electricity of isolation and non-faulting dead electricity region.The fault handling scheme generated can directly to go out concrete operating switch, disconnecting link and they meet the sequence of operation of schedule regulation.There is the operability consistent with actual schedule process.
Fault handling is considered from simple fault and complex fault two aspects.
If looped network is dual power supply, and meet N-1 principle, namely when a power supply point breaks down, opposite end power supply can drive all loads on looped network, and system processes by simple fault tupe.Isolating switch outlet fault, bus-bar fault, cable fault, load side fault, line end fault all belong to the scope of simple fault.Respectively its fault treating procedure will be introduced below.
If looped network has many power supplys (being greater than 2), though or be dual power supply, do not meet N-1 principle, system will process by complex fault tupe further.Discontinuous fault, side multipoint fault, side and offside simultaneous faults, the extended fault of the uncontrollable needs of switch, load can not all be turned for needing the fault of removal of load, interconnection switch place fault all belongs to complex fault.
Localization of fault: the analysis adding fault detector in the analysis of localization of fault; The scope of location is more accurate, and fault detector is affiliated on feeder line section, and anchor point is more accurate.
Fault isolation: the various fault types of process distribution network, can carry out priority division according to the significance level of every bar distribution line to fault for multipoint fault simultaneous on circuit, important distribution network failure can preferentially process.
Fault recovery: can the scheme that restore electricity of Automated Design non-faulting section, and rejuvenation can be avoided to cause the overload of All other routes; When possessing multiple standby power supply, according to the load capacity of each power supply point, fractionation can be carried out to recovery region and restores electricity.
(2) fault analysis new method
Do for the situation only having fault detector, fault detector and distribution terminal to mix mutually and consider, and abnormality processing is done to situations such as fault detector off-line, fault detector signal deletions.
(3) new method of Fault Identification
Because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore the start-up criterion of transformer station's outlet switch emergency stop valve trip cannot be adopted to carry out startup separator analysis, need the board turning information utilizing fault detector to carry out trigger fault and monitor.Oppositely find corresponding outlet switch as starting point by the action message of fault detector, then carried out the topological analysis of classic method again by this starting point downwards.
(4) figure displaying is confined in fault zone
For built on stilts fault detector, in region of may breaking down, only have a node, therefore when the judgement to equipment in fault section, by boundary node connect feeder line section and be included.Connected for fault zone node two feeder line section are all carried out painted.And with fault detector, switch for equipment border, use empty frame to be confined fault zone.
(5) demand based on power distribution network geographic map location and visual interactive operation is met
Geographic map quick position: for the overhead transmission line that power supply distance is longer, the mode effect that localization of fault shows with geographic map is better, it is in which geographic position break down that auxiliary tone personnel can be allowed to learn fast, directly quote fault detector place shaft tower during location, facilitate yardman and repair personnel to link up.
Intelligent alarm: the circuit carrying out localization of fault owing to mounting fault detector future can get more and more, overlay area wants large many relative to city, needs and sends short message alarm information to the maintainer of each responsible section targetedly.System is by the zone of responsibility according to guilty culprit circuit, and from this zone of responsibility of trend, managerial personnel send SMS alarm information.
Visual interactive operation: when there is distribution network failure, distribution main station system will for fault detector position, fault section is confined, and provides the interactive means of screen operation for yardman, facilitate yardman to carry out fault and to isolate fast and load turns the policy selection in generation.
(5) subsidiary function
Load current data query: adopt chart and curve map mode to represent collection point current data, can query filter by date.Query Result data can print, derive.
Indicating fault management: fault detector can be associated with history alarm information, can check the Back ground Information of fault detector on the one hand, and the information accuracy that can report fault detector on the other hand does a verification.
Modeling in conjunction with fault detector and distribution terminal provided by the invention and failure analysis methods improve the fault handling efficiency of distribution line, shorten power off time, thus become the effective means of the power supply reliability improving outskirts of a town and Rural Power Distribution Network, also be one of means of current less investment instant effect, Technique Popularizing speed.
Accompanying drawing explanation
Fig. 1 is the modeling in conjunction with fault detector and distribution terminal of the present invention and failure analysis methods schematic flow sheet.
Embodiment
As shown in Figure 1, modeling in conjunction with fault detector and distribution terminal of the present invention and failure analysis methods, not only meet the demand of distribution scheduling information security, also meeting based on distribution geographic map quick position and visual interactive operation, is the new failure analysis methods based on fault detector and distribution terminal.
Therefore, when building fault detector model, the measurement signal considered is needed mainly to comprise three-phase over-current signal, three-phase current amplitude, device whether online etc.
Operational failure indicator location distribution line failure section is with the feature difference between the distribution feeder automation of traditional cities: the failure message of traditional cities feeder automation is mainly associated with distribution-network automation switch, and outskirts of a town and Rural Power Distribution Network overhead transmission line longer, almost do not have block switch, fault detector information needs to be associated with feeder line section.
Because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore the start-up criterion of transformer station's outlet switch emergency stop valve trip cannot be adopted to carry out startup separator analysis, need the board turning information utilizing fault detector to carry out trigger fault and monitor.Oppositely find corresponding outlet switch as starting point by the action message of fault detector, then carried out the topological analysis of classic method again by this starting point downwards.
Different with normal fault section, edge device is originally not in fault painted areas, but for built on stilts fault detector, may break down in region and only have a node, therefore when the judgement to equipment in fault section, by boundary node connect feeder line section and be included.After fault detector information being delivered to distribution automation main station system, need to analyze according to failure message startup separator, and failure analysis result is adopted geographic map location, intelligent alarm, visual interactive operation mode be supplied to auxiliary tone personnel.
Claims (2)
1. the modeling in conjunction with fault detector and distribution terminal and failure analysis methods, it is characterized in that: will the fault detector board turning information that overhead transmission line mounts be delivered in distribution network automated main station system, and by localization of fault, fault zone confine figure show come auxiliary dispatching person's localizing faults section, be made up of following steps:
(1) built on stilts fault detector equipment modeling: the function of fault detector is not limited to single remote signalling (overcurrent action), when building fault detector model, measurement signal mainly comprises three-phase over-current signal, whether three-phase current amplitude, device be online;
(2) localization of fault: because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore the start-up criterion of transformer station's outlet switch emergency stop valve trip cannot be adopted to carry out startup separator analysis, utilize the board turning information of fault detector to carry out trigger fault to monitor, oppositely find corresponding outlet switch as starting point by the action message of fault detector, then carried out the topological analysis of classic method again by this starting point downwards;
(3) figure displaying is confined in fault zone: when the judgement to equipment in fault section, will by boundary node connect feeder line section and be included, connected for fault zone node two feeder line section are all carried out painted, and with fault detector, switch for equipment border, use empty frame to be confined fault zone.
2. the modeling in conjunction with fault detector and distribution terminal according to claim 1 and failure analysis methods, is characterized in that: during the distribution line failure section of operational failure indicator location, fault detector information needed to be associated with feeder line section.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607042A (en) * | 2013-07-17 | 2014-02-26 | 国电南瑞科技股份有限公司 | Power distribution network fault processing method for suburb long overhead line-oriented fault indicator |
| CN104914356A (en) * | 2015-06-21 | 2015-09-16 | 国家电网公司 | Distribution network fault positioning method based on network structure matrix |
| CN105606957A (en) * | 2015-12-23 | 2016-05-25 | 国网福建省电力有限公司 | Grid fault research and judge method based on fault indicator and public/specific transformer |
| CN106646104A (en) * | 2016-09-28 | 2017-05-10 | 广东电网有限责任公司肇庆供电局 | Power distribution network fault diagnosis method |
| CN107765140A (en) * | 2017-12-06 | 2018-03-06 | 福建奥通迈胜电力科技有限公司 | Simple power distribution network active failure analysis method based on fault detector board turning Information Matrix |
| CN109683062A (en) * | 2019-01-31 | 2019-04-26 | 中国矿业大学(北京) | A kind of electric distribution network overhead wire Fault Locating Method based on fault detector |
| 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 |
-
2013
- 2013-06-19 CN CN201310243111.0A patent/CN104237735A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607042A (en) * | 2013-07-17 | 2014-02-26 | 国电南瑞科技股份有限公司 | Power distribution network fault processing method for suburb long overhead line-oriented fault indicator |
| CN103607042B (en) * | 2013-07-17 | 2015-10-14 | 国家电网公司 | The distribution network failure processing method of long fault indicator for overhead lines towards outskirts of a town |
| CN104914356A (en) * | 2015-06-21 | 2015-09-16 | 国家电网公司 | Distribution network fault positioning method based on network structure matrix |
| CN105606957B (en) * | 2015-12-23 | 2018-12-11 | 国网福建省电力有限公司 | A kind of distribution network failure analysis method specially become based on fault detector and public affairs |
| CN105606957A (en) * | 2015-12-23 | 2016-05-25 | 国网福建省电力有限公司 | Grid fault research and judge method based on fault indicator and public/specific transformer |
| CN106646104A (en) * | 2016-09-28 | 2017-05-10 | 广东电网有限责任公司肇庆供电局 | Power distribution network fault diagnosis method |
| CN106646104B (en) * | 2016-09-28 | 2019-08-06 | 广东电网有限责任公司肇庆供电局 | Fault Diagnosis Method for Distribution Networks |
| CN107765140A (en) * | 2017-12-06 | 2018-03-06 | 福建奥通迈胜电力科技有限公司 | Simple power distribution network active failure analysis method based on fault detector board turning Information Matrix |
| CN107765140B (en) * | 2017-12-06 | 2020-12-08 | 福建奥通迈胜电力科技有限公司 | Power distribution network active fault studying and judging method based on fault indicator card turning information array |
| CN109683062A (en) * | 2019-01-31 | 2019-04-26 | 中国矿业大学(北京) | A kind of electric distribution network overhead wire Fault Locating Method based on fault detector |
| CN109683062B (en) * | 2019-01-31 | 2020-01-24 | 中国矿业大学(北京) | Fault indicator-based power distribution network overhead line fault positioning method |
| 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: 20141224 |