CN103607042A - Power distribution network fault processing method for suburb long overhead line-oriented fault indicator - Google Patents

Power distribution network fault processing method for suburb long overhead line-oriented fault indicator Download PDF

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Publication number
CN103607042A
CN103607042A CN201310299164.4A CN201310299164A CN103607042A CN 103607042 A CN103607042 A CN 103607042A CN 201310299164 A CN201310299164 A CN 201310299164A CN 103607042 A CN103607042 A CN 103607042A
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fault
distribution network
power distribution
fault detector
detector
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CN201310299164.4A
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CN103607042B (en
Inventor
谭志军
苏标龙
时金媛
武会超
周养浩
顾礼斌
沈浩东
杜红卫
韩韬
刘健
宋英华
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State Grid Corp of China SGCC
Nari Technology Co Ltd
State Grid Electric Power Research Institute
Electric Power Research Institute of State Grid Shaanxi Electric Power Co Ltd
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Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
Nari Technology Co Ltd
State Grid Electric Power Research Institute
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Locating Faults (AREA)

Abstract

The invention discloses a power distribution network fault processing method for a suburb long overhead line-oriented fault indicator. Board turning information of the fault indicator hung on an overhead line of a suburb power distribution network is sent to an automated master station system of the power distribution network, according to a grid structure of the power distribution network and real-time information of equipment operation, and in combination with a fault signal, a fault is analyzed and processed through fault positioning, fault isolation and fault recovery. The power distribution fault processing method for the suburb long overhead line-oriented fault indicator provided by the invention improves the fault processing efficiency of the power distribution line, and shortens the time of power failure, thereby becoming an effective means of improving power supply reliability of rurban and rural power distribution networks.

Description

Distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town
?
Technical field
The present invention relates to the feeder automation module in electrical power distribution automatization system, relate in particular to a kind of distribution network failure processing method towards the long fault indicator for overhead lines of outskirts of a town power distribution network.
Background technology
In May, 2009, State Grid Corporation of China has formally announced " strong intelligent grid " plan to external world, and in personages of various circles of society's presence and cooperation, in association area, carried out a large amount of research and practice work, and obtained certain achievement, intelligent grid construction that can Shuo, China is fully under way.
Distribution automation utilizes modern electronic technology, mechanics of communication, computer and network technology exactly, realizes the modernization of monitoring, protection, control and distribution management under the normal operation of distribution system and accident conditions.Along with the high speed development of national economy and going deep into of reform and opening-up, power consumer is more and more higher to the requirement of the quality of power supply and power supply reliability, and voltage fluctuation and power failure in short-term all can cause huge loss.Therefore, need in power distribution network, realize in conjunction with electric network reconstruction power distribution automation, to improve the managerial skills of power distribution network, for vast power consumer is continual, provide high-quality electric energy.Feeder automation (FA), as one of important module of distribution automation, it provides effective support means to improving power supply reliability.
The feature that rural power grids circuit is different from urban power distribution network is that circuit is longer, and section breaker is less, and automated information is few.In order to tackle the maintenance of rural power grids long transmission line, adopt and on overhead transmission line, to articulate more and more that the method for fault detector uses.Development along with wireless communication technique, can this part be articulated in the fault detector board turning information on distribution line and be delivered in distribution automation main station system, and by the analysis of main station system, auxiliary dispatching person locates fault section, effectively assign repair personnel to keep in repair to scene.
Summary of the invention
Goal of the invention: in order to solve the fault message access power distribution automation main station system of fault detector, and rely on distribution
Automation main website system is carried out effective analyzing and positioning.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town, it is characterized in that: will in the fault detector board turning information articulating on the electric distribution network overhead wire of outskirts of a town, deliver in distribution network automated main station system, and according to the grid structure of power distribution network and the real time information of equipment operation, in conjunction with fault-signal, carry out fault location, Fault Isolation, fault recovery and carry out analyzing and processing fault; This analytical method comprises the steps:
(1) to fault indicator for overhead lines equipment modeling: the function of fault detector is not limited to single remote signalling (overcurrent action), and current fault detector product also carries out phase-splitting by mistake stream information, and can gather line current.Therefore when building fault detector model, the measurement signal of consideration comprises that whether three-phase over-current signal, three-phase current amplitude, fault detector be online; Fault detector information is associated with feeder line section, and fault detector gathers situation according to the overcurrent of three-phase, reports respectively the board turning information of three-phase;
When fault detector information is associated with feeder line section, fault detector is affiliated in feeder line section; By clicking " articulating fault detector " menu on the feeder line section equipment of graphical interfaces by right key, can eject fault detector and articulate interface, select relevant device to click to have determined to articulate setting, after having articulated, generation primitive information automatically on figure.
(2) fault location: because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore cannot adopt the start-up criterion of transformer station's outlet switch emergency stop valve trip to start accident analysis, need to utilize the board turning information that fault detector reports to trigger failure monitoring; Action message by fault detector oppositely finds corresponding outlet switch as starting point, then by this starting point, carry out the topological analysis of conventional method downwards again, carry out fault section location, power distribution automation main station system provides failure separation method and fail-over policy subsequently;
(3) Fault Isolation: process the various fault types of distribution network, for simultaneous multipoint fault on circuit, according to the significance level of every distribution line, fault is carried out to priority division, and by the processed distribution network failure of dividing;
(4) fault recovery: design the scheme that restores electricity of non-fault section, in the situation that possessing a plurality of stand-by power supply, according to the load capacity of each power supply point, recovery region is split and restored electricity.
Fault detector adopts the communication mode of wireless public network, and fault message is linked into automated system from outer net, and public network by safe III district is preposition to be gathered this part fault message.
In order not affect normal model, import, artwork is not done to secondary maintenance, fault detector is carried out to modeling as an associate device.
During to fault detector modeling, the mode by fault detector with a pel, is articulated in feeder line section by hand by attendant.
By power distribution automation main station system backstage, complete the login of relevant information in " fault detector articulates information table ", " fault detector figure locating information table ".
The beneficial effect that the present invention reaches:
Adopt fault detector to accelerate fault location, improve the troubleshooting efficiency of distribution line, shortening interruption duration is the effective means that improves the power supply reliability of outskirts of a town and Rural Power Distribution Network, is also one of means of current less investment instant effect, Technique Popularizing speed.Distribution fault processing method towards the long fault indicator for overhead lines of outskirts of a town power distribution network provided by the invention has improved the troubleshooting efficiency of distribution line, shorten interruption duration, thereby become the effective means of the power supply reliability that improves outskirts of a town and Rural Power Distribution Network.
Accompanying drawing explanation
Fig. 1 is the technology of the present invention block diagram.
Embodiment
The invention discloses a kind of distribution network failure processing method towards the long fault indicator for overhead lines of outskirts of a town power distribution network, not only meet the demand of distribution scheduling information security, also meeting based on distribution geographical map and locate fast and visual interactive operation, is the new failure analysis methods that is based on fault detector and distribution terminal.
Operational failure indicating device location distribution line failure section is with the feature difference between the distribution feeder automation of traditional cities: the fault 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 are longer, almost there is no block switch, fault detector informational needs is associated with feeder line section.The fault section that the method is judged is different with normal fault section, edge device is originally not in the fault painted areas, but for built on stilts fault detector, may break down in region and only have a node, therefore in to fault section, during the judgement of equipment, feeder line section that boundary node connects is included.
Because the height station outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore cannot adopt the start-up criterion of transformer station's outlet switch emergency stop valve trip to start accident analysis, need to utilize the board turning information of fault detector to trigger failure monitoring.Action message by fault detector oppositely finds corresponding outlet switch as starting point, then by this starting point, carries out the topological analysis of conventional method downwards again.
After delivering to distribution automation main station system in fault detector information, need to start accident analysis according to fault message, and adopt the mode of geographical map location, intelligent alarm, visual interactive operation to offer auxiliary tone personnel accident analysis result.Step as shown in Figure 1.
A kind of Fault Identification new method is provided:
Because transformer station's outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore cannot
Adopt the start-up criterion of transformer station's outlet switch emergency stop valve trip to start accident analysis, need to utilize the board turning information of fault detector to trigger failure monitoring.Action message by fault detector oppositely finds corresponding outlet switch as starting point, then by this starting point, carries out the topological analysis of conventional method downwards again.
(1) monitor fault detector board turning information
Because transformer station's outlet switch information of the remote circuit of part is not forwarded in power distribution automation main website, therefore cannot
Adopt the start-up criterion of transformer station's outlet switch emergency stop valve trip to start accident analysis, need to utilize the board turning information of fault detector to trigger failure monitoring.
(2) build fault detector modeling
The function of fault detector is not limited to single remote signalling (overcurrent action), and current fault detector product also carries out phase-splitting by mistake stream information, and can gather line current.Therefore when building fault detector model, the measurement signal that needs to consider mainly comprises that whether three-phase over-current signal, three-phase current amplitude, device be online etc.The basic function of fault detector is to gather situation according to the overcurrent of three-phase, reports respectively the board turning information of three-phase.The fault type that generic failure indicating device can be identified comprises:
Three-phase shortcircuit: fault detector will report the board turning action of A, B, C three-phase.
Line to line fault: fault detector will report the board turning action of short circuit two-phase.
Single-phase earthing: fault detector will report the board turning action of Earth Phase.
Operational failure indicating device location distribution line failure section is with the feature difference between the distribution feeder automation of traditional cities: the fault 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 are longer, almost there is no block switch, fault detector informational needs is associated with feeder line section.
(3) equipment is associated
By clicking " articulating fault detector " menu on the feeder line section equipment of graphical interfaces by right key, can eject fault detector and articulate interface, select relevant device click to determine and articulate setting, after having articulated, on figure, automatically generate primitive information (wherein red representative action, not action of green representative).
(4) fault location, Fault Isolation and fault recovery
Troubleshooting is according to the real time information of the grid structure of power distribution network and equipment operation, in conjunction with fault-signal, carries out the restoring electricity of location, isolation and non-fault dead electricity region of fault.The troubleshooting scheme generating can directly provide concrete console switch, disconnecting link and they meet the operating sequence of schedule regulation.There is the operability consistent with actual schedule process.
Fault location: increased the analysis of fault detector in the analysis of fault location; The scope of location is more accurate, and fault detector is affiliated on feeder line section, and anchor point is more accurate.
Fault Isolation: process the various fault types of distribution network, can carry out priority division to fault according to the significance level of every distribution line for simultaneous multipoint fault on circuit, important distribution network failure can preferentially be processed.
Fault recovery: the scheme that restores electricity that can the non-fault section of Automated Design, and can avoid recovery process to cause the overload of All other routes; In the situation that possessing a plurality of stand-by power supply, can, according to the load capacity of each power supply point, recovery region be split and be restored electricity.
(5) miscellaneous function
A. pattern exhibiting is confined in fault zone: for fault indicator for overhead lines, may break down in region and only have a node, therefore in to fault section during the judgement of equipment, feeder line section that boundary node connects is included, node connected two feeder line section in fault zone are all carried out painted.And take fault detector, switch is equipment border, uses empty frame that fault zone is confined;
B. fault detector management function: fault detector is associated with history alarm information, can checks on the one hand the Back ground Information of fault detector, the information accuracy that can report fault detector is on the other hand done a verification;
C. load current data query: adopt chart and curve chart mode to represent collection point current data, by date query filter.Query Result data can be printed, derive.
(6) troubleshooting completes, and preserves fault message.

Claims (6)

1. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town, it is characterized in that: will in the fault detector board turning information articulating on the electric distribution network overhead wire of outskirts of a town, deliver in distribution network automated main station system, and according to the grid structure of power distribution network and the real time information of equipment operation, in conjunction with fault-signal, carry out fault location, Fault Isolation, fault recovery and carry out analyzing and processing fault; This analytical method comprises the steps:
(1) to fault indicator for overhead lines equipment modeling: the measurement signal of consideration comprises that whether three-phase over-current signal, three-phase current amplitude, fault detector be online; Fault detector information is associated with feeder line section, and fault detector gathers situation according to the overcurrent of three-phase, reports respectively the board turning information of three-phase;
When fault detector information is associated with feeder line section, fault detector is affiliated in feeder line section;
(2) fault location: utilize the board turning information that fault detector reports to trigger failure monitoring; Action message by fault detector oppositely finds corresponding outlet switch as starting point, then by this starting point, carry out the topological analysis of conventional method downwards again, carry out fault section location, power distribution automation main station system provides failure separation method and fail-over policy subsequently;
(3) Fault Isolation: process the various fault types of distribution network, for simultaneous multipoint fault on circuit, according to the significance level of every distribution line, fault is carried out to priority division, and by the processed distribution network failure of dividing;
(4) fault recovery: design the scheme that restores electricity of non-fault section, in the situation that possessing a plurality of stand-by power supply, according to the load capacity of each power supply point, recovery region is split and restored electricity.
2. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town according to claim 1, is characterized in that: also comprise the step that pattern exhibiting is confined in fault zone:
For fault indicator for overhead lines, in to fault section, during the judgement of equipment, feeder line section that boundary node connects is included, and take fault detector, switch and confine as ,Jiang fault zone, equipment border.
3. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town according to claim 1, it is characterized in that: fault detector adopts the communication mode of wireless public network, fault message is linked into automated system from outer net, and public network by safe III district is preposition to be gathered this part fault message.
4. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town according to claim 1, is characterized in that: fault detector is carried out to modeling as an associate device.
5. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town according to claim 1, it is characterized in that: during to fault detector modeling, mode by fault detector with a pel, is articulated in feeder line section by hand by attendant.
6. the distribution network failure processing method towards the long fault indicator for overhead lines in outskirts of a town according to claim 1, is characterized in that: by power distribution automation main station system backstage, complete the login of relevant information in " fault detector articulates information table ", " fault detector figure locating information table ".
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Cited By (12)

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CN104155577A (en) * 2014-08-11 2014-11-19 国家电网公司 Information transmission control system and method based on overhead line wireless fault indicator
CN104391228A (en) * 2014-12-03 2015-03-04 国家电网公司 System and method for automatically detecting functions of feeder line
CN104635712A (en) * 2015-03-04 2015-05-20 国家电网公司 Safety guarantee method for full-automatic fault treatment of power distribution network
CN104655989A (en) * 2015-03-02 2015-05-27 国电南瑞科技股份有限公司 Smart meter collecting function based remote inspection method for power outage fields
CN105260239A (en) * 2015-10-19 2016-01-20 福建奥通迈胜电力科技有限公司 Function and performance balanced scheduling method for fault indicators
CN105322654A (en) * 2014-07-25 2016-02-10 国家电网公司 Overhead line current status displaying method and device
CN105426671A (en) * 2015-11-11 2016-03-23 重庆大学 Method for evaluating reliability of overhead power distribution line in thunderstorm weather
CN105467276A (en) * 2016-01-13 2016-04-06 国网浙江省电力公司 Line fault monitoring method and system
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
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
CN112946417A (en) * 2021-01-27 2021-06-11 杭州夏众电子科技有限公司 Electric power monitoring system with fault position detection function
CN115275396A (en) * 2022-08-15 2022-11-01 珠海冠宇电源有限公司 Battery protection technology and battery pack

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CN102299563A (en) * 2011-08-26 2011-12-28 任建福 Digital-analog (DA) protection method for intelligent distribution network
CN104237735A (en) * 2013-06-19 2014-12-24 国家电网公司 Modeling and fault analysis method combining fault indicator and power distribution terminal

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US5517423A (en) * 1994-01-11 1996-05-14 Systems Analysis And Integration, Inc. Power distribution system control network
CN102299563A (en) * 2011-08-26 2011-12-28 任建福 Digital-analog (DA) protection method for intelligent distribution network
CN104237735A (en) * 2013-06-19 2014-12-24 国家电网公司 Modeling and fault analysis method combining fault indicator and power distribution terminal

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105322654B (en) * 2014-07-25 2018-09-18 国家电网公司 Overhead line current state display methods and device
CN105322654A (en) * 2014-07-25 2016-02-10 国家电网公司 Overhead line current status displaying method and device
CN104155577A (en) * 2014-08-11 2014-11-19 国家电网公司 Information transmission control system and method based on overhead line wireless fault indicator
CN104391228A (en) * 2014-12-03 2015-03-04 国家电网公司 System and method for automatically detecting functions of feeder line
CN104391228B (en) * 2014-12-03 2017-11-24 国家电网公司 feeder automation function detecting system and method
CN104655989A (en) * 2015-03-02 2015-05-27 国电南瑞科技股份有限公司 Smart meter collecting function based remote inspection method for power outage fields
CN104635712B (en) * 2015-03-04 2017-04-26 国家电网公司 Safety guarantee method for full-automatic fault treatment of power distribution network
CN104635712A (en) * 2015-03-04 2015-05-20 国家电网公司 Safety guarantee method for full-automatic fault treatment of power distribution network
CN105260239A (en) * 2015-10-19 2016-01-20 福建奥通迈胜电力科技有限公司 Function and performance balanced scheduling method for fault indicators
CN105260239B (en) * 2015-10-19 2019-01-11 福建奥通迈胜电力科技有限公司 One kind being used for fault detector functional performance equalization scheduling method
CN105426671A (en) * 2015-11-11 2016-03-23 重庆大学 Method for evaluating reliability of overhead power distribution line in thunderstorm weather
CN105426671B (en) * 2015-11-11 2018-02-16 重庆大学 The reliability evaluating method of overhead distribution under a kind of Thunderstorm Weather
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
CN105467276A (en) * 2016-01-13 2016-04-06 国网浙江省电力公司 Line fault monitoring method and system
CN105467276B (en) * 2016-01-13 2018-09-21 国网浙江省电力公司 A kind of line fault monitoring method and system
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
CN112946417A (en) * 2021-01-27 2021-06-11 杭州夏众电子科技有限公司 Electric power monitoring system with fault position detection function
CN115275396A (en) * 2022-08-15 2022-11-01 珠海冠宇电源有限公司 Battery protection technology and battery pack

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