CN104808113A - Intelligent distribution line fault point location method - Google Patents
Intelligent distribution line fault point location method Download PDFInfo
- Publication number
- CN104808113A CN104808113A CN201510215674.8A CN201510215674A CN104808113A CN 104808113 A CN104808113 A CN 104808113A CN 201510215674 A CN201510215674 A CN 201510215674A CN 104808113 A CN104808113 A CN 104808113A
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- CN
- China
- Prior art keywords
- distribution line
- fault point
- positioning method
- point positioning
- substation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
Disclosed is an intelligent distribution line fault point location method. Currently, large amount of labor force, material and time are wasted for finding line faults of feeder lines, and the reliability of power supply is reduced seriously. The method includes according to each intelligent distribution line system, firstly, segmenting the distribution line, arranging a distribution pillar switch data terminal FTU, used for detecting the fault current of the distribution line segment, on a distribution pillar of each segment of the distribution line, arranging a data terminal DTU on a sub section post and ring main unit, and arranging a substation data terminal RTU on the entire distribution system. The fault point location method particularly includes 1, acquiring substation data; 2, analyzing the fault current data; 3, determining the fault segment of the distribution line; 4, transmitting the fault information to a main station. The method is applied to intelligent distribution line fault point location.
Description
technical field:
the present invention relates to a kind of fault point positioning method of intelligent distribution line.
background technology:
in electric system, 35kV, 10kV system is isolated neutral system, quick and precisely trouble spot is found in current not good method when 35kV, 10kV feeder line breaks down, feeder line is the power circuit of being powered to secondary substation by Bulk Supply Substation in distribution system, feeder line is made up of many distribution lines, every bar distribution line is divided into multistage, at present, when searching the trouble spot of feeder line, by work about electric power personnel line walking looking up the fault point piecemeal, this just needs human and material resources and the time of at substantial, therefore seriously reduces power supply reliability.
summary of the invention:
the object of this invention is to provide a kind of fault point positioning method of intelligent distribution line.
above-mentioned object is realized by following technical scheme:
a fault point positioning method for intelligent distribution line, its composition comprises: data terminal D TU, be no less than a RTU and be no less than a FTU, in each described intelligent distribution line system, first every bar distribution line is divided into multistage S
1
, S
2
s
n
, the distribution pillar of each section of distribution line is all provided with one for detecting the distribution pillar switch data terminal FTU of the fault current of this section of distribution line
1
, FTU
2
... FTU
n
; A described opening and closing in one's power ring main unit is provided with n substation data terminal D TU
1
, DTU
2
... DTU
n
; Described whole distribution system is provided with 1 data terminal RTU, and the step of described fault point positioning method is as follows: gather each substation data; To fault current data analysis; Determine the faulty section of distribution line; Send failure message to main website.
the fault point positioning method of described a kind of intelligent distribution line, the step of described fault point positioning method is as follows: (one) gathers each substation data; The fault current data of each substation data terminal RTU, each opening and closing distribution pillar switch data terminal FTU of ring main unit data terminal DTU, each bar distribution line and every section of distribution line thereof are in one's power gathered by substation;
the fault point positioning method of described a kind of intelligent distribution line, the step of described fault point positioning method is as follows: (two) substation is to fault current data analysis, if the fault current of T article of distribution line is greater than zero, then judge that T article of distribution line is faulty line;
the fault point positioning method of described a kind of intelligent distribution line, the step of described fault point positioning method is as follows: the fault current of each section of distribution line on T article of distribution line is analyzed in (three) substation, if the fault current of n-th section of distribution line is greater than zero, the fault current of (n+1)th section of distribution line is zero, then judge that n-th section of distribution line on T article of distribution line breaks down;
the fault point positioning method of described a kind of intelligent distribution line, the step of described fault point positioning method is as follows: failure message is sent to main website by (four) substation, the position of the failure message localization of faults that maintainer obtains according to main website.
beneficial effect of the present invention:
1. when distribution line of the present invention breaks down, bus all detects fault current to all RTU, DTU and FTU of trouble spot, and RTU, DTU and FTU outside trouble spot all can't detect fault current, and fault current is zero; Accurately really can find trouble spot according to this feature, when line failure, on bus, the data of collection and computing are delivered to substation by branch's communication network by data terminal RTU, DTU or FTU of all feeder lines, carry out comprehensive analysis and judgement by substation; The result of comprehensive analysis and judgement is sent to main website by substation, by operations staff, the result of comprehensive analysis and judgement is informed maintainer, and maintainer quick and precisely can find trouble spot according to result, quick and precisely can find trouble spot.
the present invention is for avoiding the weak point that exists in above-mentioned prior art, providing a kind of fault point positioning method of intelligent distribution line, to improve the search efficiency of feeder fault point and accuracy, raising power supply reliability.
the fault point positioning method of intelligent distribution line of the present invention, has the advantages such as the functional reliability can locating, can improve distribution line to the trouble spot of distribution line rapidly and accurately.
accompanying drawing illustrates:
accompanying drawing 1 is fault point positioning method block diagram of the present invention.
accompanying drawing 2 is DTN figure of the present invention.
accompanying drawing 3 is line assumption diagrams of the present invention.
embodiment:
embodiment 1:
a fault point positioning method for intelligent distribution line, its composition comprises: data terminal D TU, be no less than a RTU and be no less than a FTU, in each described intelligent distribution line system, first every bar distribution line is divided into multistage S
1
, S
2
s
n
, the distribution pillar of each section of distribution line is all provided with one for detecting the distribution pillar switch data terminal FTU of the fault current of this section of distribution line
1
, FTU
2
... FTU
n
; A described opening and closing in one's power ring main unit is provided with n substation data terminal D TU
1
, DTU
2
... DTU
n
; Described whole distribution system is provided with 1 data terminal RTU, and the step of described fault point positioning method is as follows: (one) gathers each substation data; (2) to fault current data analysis; (3) faulty section of distribution line is determined; (4) failure message is sent to main website.
embodiment 2:
the fault point positioning method of a kind of intelligent distribution line according to embodiment 1, the step of described fault point positioning method is as follows: (one) gathers each substation data; The fault current data of each substation data terminal RTU, each opening and closing distribution pillar switch data terminal FTU of ring main unit data terminal DTU, each bar distribution line and every section of distribution line thereof are in one's power gathered by substation;
embodiment 3:
the fault point positioning method of a kind of intelligent distribution line according to embodiment 1, the step of described fault point positioning method is as follows: (two) substation is to fault current data analysis, if the fault current of T article of distribution line is greater than zero, then judge that T article of distribution line is faulty line;
embodiment 4:
the fault point positioning method of a kind of intelligent distribution line according to embodiment 1, the step of described fault point positioning method is as follows: the fault current of each section of distribution line on T article of distribution line is analyzed in (three) substation, if the fault current of n-th section of distribution line is greater than zero, the fault current of (n+1)th section of distribution line is zero, then judge that n-th section of distribution line on T article of distribution line breaks down;
embodiment 5:
the fault point positioning method of a kind of intelligent distribution line according to embodiment 1, the step of described fault point positioning method is as follows: failure message is sent to main website by (four) substation, the position of the failure message localization of faults that maintainer obtains according to main website.
Claims (5)
1. the fault point positioning method of an intelligent distribution line, its composition comprises: data terminal D TU, be no less than a RTU and be no less than a FTU, it is characterized in that: in each described intelligent distribution line system, first every bar distribution line is divided into multistage S
1, S
2s
n, the distribution pillar of each section of distribution line is all provided with one for detecting the distribution pillar switch data terminal FTU of the fault current of this section of distribution line
1, FTU
2... FTU
n; A described opening and closing in one's power ring main unit is provided with n substation data terminal D TU
1, DTU
2... DTU
n; Described whole distribution system is provided with 1 data terminal RTU, and the step of described fault point positioning method is as follows: gather each substation data; To fault current data analysis; Determine the faulty section of distribution line; Send failure message to main website.
2. the fault point positioning method of a kind of intelligent distribution line according to claim 1, is characterized in that: the step of described fault point positioning method is as follows: (one) gathers each substation data; The fault current data of each substation data terminal RTU, each opening and closing distribution pillar switch data terminal FTU of ring main unit data terminal DTU, each bar distribution line and every section of distribution line thereof are in one's power gathered by substation.
3. the fault point positioning method of a kind of intelligent distribution line according to claim 1 and 2, it is characterized in that: the step of described fault point positioning method is as follows: (two) substation is to fault current data analysis, if the fault current of T article of distribution line is greater than zero, then judge that T article of distribution line is faulty line.
4. the fault point positioning method of a kind of intelligent distribution line according to claim 1 or 2 or 3, it is characterized in that: the step of described fault point positioning method is as follows: the fault current of each section of distribution line on T article of distribution line is analyzed in (three) substation, if the fault current of n-th section of distribution line is greater than zero, the fault current of (n+1)th section of distribution line is zero, then judge that n-th section of distribution line on T article of distribution line breaks down.
5. the fault point positioning method of a kind of intelligent distribution line according to claim 1 or 2 or 3 or 4, it is characterized in that: the step of described fault point positioning method is as follows: failure message is sent to main website by (four) substation, the position of the failure message localization of faults that maintainer obtains according to main website.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215674.8A CN104808113A (en) | 2015-04-30 | 2015-04-30 | Intelligent distribution line fault point location method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215674.8A CN104808113A (en) | 2015-04-30 | 2015-04-30 | Intelligent distribution line fault point location method |
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| CN104808113A true CN104808113A (en) | 2015-07-29 |
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| CN201510215674.8A Pending CN104808113A (en) | 2015-04-30 | 2015-04-30 | Intelligent distribution line fault point location method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445619A (en) * | 2015-11-25 | 2016-03-30 | 国网辽宁省电力有限公司阜新供电公司 | Power distribution circuit fault point positioning method |
| CN106291251A (en) * | 2016-09-07 | 2017-01-04 | 国电南瑞科技股份有限公司 | A kind of Fault Locating Method based on unit style power distribution network |
| CN106655128A (en) * | 2016-12-27 | 2017-05-10 | 国网浙江省电力公司 | Partial power off control system of distribution network and distribution network system |
| CN106711974A (en) * | 2016-12-27 | 2017-05-24 | 国网浙江省电力公司 | Local power failure control system for power distribution network, and power distribution network system |
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| CN102624097A (en) * | 2012-04-16 | 2012-08-01 | 安徽省电力公司合肥供电公司 | Fault point positioning method for intelligent distribution lines |
| CN102628914A (en) * | 2012-04-16 | 2012-08-08 | 安徽省电力公司合肥供电公司 | Method for positioning grounding point of intelligent distribution line |
| CN104101814A (en) * | 2014-07-21 | 2014-10-15 | 国网上海市电力公司 | Line fault accurate location method based on distribution automation system |
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2015
- 2015-04-30 CN CN201510215674.8A patent/CN104808113A/en active Pending
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| CN101017974A (en) * | 2007-03-06 | 2007-08-15 | 耿玉泉 | Single phase grounding failure positioning method and device of neutral point non direct grounding power grid |
| CN202042946U (en) * | 2011-04-25 | 2011-11-16 | 成都思晗科技有限公司 | Automatic power distribution network fault positioning system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445619A (en) * | 2015-11-25 | 2016-03-30 | 国网辽宁省电力有限公司阜新供电公司 | Power distribution circuit fault point positioning method |
| CN106291251A (en) * | 2016-09-07 | 2017-01-04 | 国电南瑞科技股份有限公司 | A kind of Fault Locating Method based on unit style power distribution network |
| CN106291251B (en) * | 2016-09-07 | 2018-11-30 | 国电南瑞科技股份有限公司 | A kind of Fault Locating Method based on unit style power distribution network |
| CN106655128A (en) * | 2016-12-27 | 2017-05-10 | 国网浙江省电力公司 | Partial power off control system of distribution network and distribution network system |
| CN106711974A (en) * | 2016-12-27 | 2017-05-24 | 国网浙江省电力公司 | Local power failure control system for power distribution network, and power distribution network system |
| CN106655128B (en) * | 2016-12-27 | 2019-10-08 | 国网浙江省电力公司 | A kind of power distribution network part power-off control system and distribution network system |
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Application publication date: 20150729 |
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