CN106374444B - A kind of distribution line first section fault handling method under the conditions of non-interactive type - Google Patents
A kind of distribution line first section fault handling method under the conditions of non-interactive type Download PDFInfo
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- CN106374444B CN106374444B CN201611023196.1A CN201611023196A CN106374444B CN 106374444 B CN106374444 B CN 106374444B CN 201611023196 A CN201611023196 A CN 201611023196A CN 106374444 B CN106374444 B CN 106374444B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses the distribution line first section fault handling methods under the conditions of a kind of non-interactive type, pass through the matching and logical action of substation's outlet guard time definite value, and the fault recovery under the conditions of the distributed feeder automation communications of combination, the Fault Isolation of substation's outlet route first section and the service restoration of non-first section fault zone are realized in the case where substation exit protection does not have information interaction condition with first station power distribution line terminal, solution can only be using the troubleshooting of this section of route as blind area, the feeder automation Fault Isolation of the route first section is not considered, if the route first section breaks down, then only rely on the movement of outlet protection exit, whole route all fronts power loss cuts off failure, and it can not automatic separating fault region and the problem of complete the power supply of non-first section fault zone.
Description
Technical field
The invention patent belong to electrical power distribution automatization system FEEDER AUTOMATION field more particularly to a kind of non-interactive type
Under the conditions of distribution line first section fault handling method.
Background technique
Feeder automation is an extremely important aspect of electrical power distribution automatization system, and distributed feeder automation passes through adjacent
Communication and information exchange between terminal come positioning failure region and complete troubleshooting.Therefore, generation is commonly being segmented
Line fault between switch, by between distribution terminal relevant information interaction, can successfully realize fault zone positioning, every
It powers from non-first section fault zone；But for occurring in substation exit to the route first section event between first block switch
Barrier, because only outlet protection can detect failure at this time, and first station power distribution terminal is can not to examine out of order, therefore accurately to be determined
Position and isolated fault section then export the condition that must have information exchange between protection and first station power distribution terminal；But in reality
In, it is restricted distance and execution conditions between the two, is more limited to the system and administration authority and letter of client
(substation typically belongs to districts and cities to breath security doctrine problem or higher level dispatches administration, and distribution line typically belongs to base's transport inspection department door
Administration), often do not have information interaction condition between substation exit protection and first station power distribution terminal.Under these conditions, lead to
Normal processing method can only not consider the feeder automation of the route first section using the troubleshooting of this section of route as blind area
Fault Isolation can only act, whole route all fronts power loss is come if the route first section breaks down by outlet protection exit
It cuts off failure, and automatic separating fault region and the power supply of non-first section fault zone can not be completed.
Summary of the invention
The technical problem to be solved by the present invention is the distribution line first section troubleshooting under the conditions of providing a kind of non-interactive type
Method, common solution can only not consider the feedback of the route first section using the troubleshooting of this section of route as blind area
Line automation Fault Isolation only relies on the movement of outlet protection exit, whole route is completely if the route first section breaks down
Power loss cuts off failure, and can not automatic separating fault region and the problem of complete the power supply of non-first section fault zone.
Technical solution provided by the invention is the distribution line first section fault handling method under the conditions of a kind of non-interactive type, is led to
The matching and logical action of substation's outlet guard time definite value are crossed, and combines the event under the conditions of distributed feeder automation communications
Barrier restores, and realizes substation's outlet line in the case where substation exit protection does not have information interaction condition with first station power distribution line terminal
The service restoration of the Fault Isolation of road first section and non-first section fault zone.
Substation's outlet guard time definite value is tripping delay definite value T, substation exit protects single shot reclosing
Time T1 and substation exit protect secondary reclosure time T2；The T > T1+T2.
Substation's outlet route first section is the distribution between substation exit protection and first station power distribution line terminal
Route.
Headed by non-substation's outlet first section between station power distribution line terminal and last station power distribution line terminal
Distribution line.
The troubleshooting of substation's outlet route first section is to set transforming plant protecting and first station power distribution route end first
Substation's outlet first section between end breaks down, and the two does not have information interaction condition；Secondly transforming plant protecting detects failure
After act, single shot reclosing baulk after the T1 time illustrates for permanent fault；After first station power distribution line terminal detection decompression,
Start the timing of decompression delay tripping；The secondary unsuccessful reclosing of transforming plant protecting after the T2 time again, first station power distribution line terminal is still
In detection decompression state；Then first station power distribution line terminal delay T, and T > T1+T2, still in decompression, explanation after arrival
Failure occurs in route first section, and first station power distribution line terminal tripping, fault section positioning and isolation are completed；Final fault success every
From rear, distributed feeder automation restores function starting, and non-faulting side distribution line terminal is calculated by information exchange and topology,
Interconnection switch, which confirms, itself to be needed to act, and starting is closed a floodgate, and the power supply of non-first section fault zone is completed after closing success.
The service restoration of the non-first section fault zone is to set the adjacent part of path for carrying out information exchange first to occur
Failure, at the same transforming plant protecting and first station power distribution line terminal it is straight between do not have information interaction condition；Secondly transforming plant protecting
It is acted after detection failure, single shot reclosing baulk after T1 illustrates for permanent fault；First station power distribution line terminal detects decompression
Afterwards, start the timing of decompression delay tripping；The secondary reclosing timing starting of transforming plant protecting；Again because movement occurs in non-power transformation
It stands out route first section, related distribution line terminal can detect failure, while start distributed feeder automation positioning function success
Positioning and isolated fault；Then after the completion of Fault Isolation, distributed feeder automation restores function starting, non-faulting side distribution wire
Road terminal is calculated by information exchange and topology, and interconnection switch, which confirms, itself to be needed to act, and starting is closed a floodgate, and is completed after closing success
The power supply of non-first section fault zone；Subsequently after the secondary reclosing delay T2 of transforming plant protecting is reached, because failure has succeeded
It is isolated, at this time the secondary reclosing success of transforming plant protecting；Finally because of the secondary reclosing success of transforming plant protecting, first station power distribution line
Road terminal decompression condition disappears, and decompression delay does not reach T > T1+T2, and first station power distribution line terminal will not act tripping, until
This troubleshooting terminates.
Using technical solution of the present invention, by the matching and logical action with substation outlet guard time definite value, and
In conjunction with the fault recovery under the conditions of distributed feeder automation communications, can transforming plant protecting and first station power distribution line terminal not
Have and effectively realize the Fault Isolation of route first section and restoring electricity for non-first section fault zone under information interaction condition, to solve
Certainly common processing method can only be do not consider using the troubleshooting of this section of route as blind area the feeder line of the route first section from
Dynamicization Fault Isolation can only act, whole route completely loses if the route first section breaks down by outlet protection exit
Electricity cuts off failure, and can not automatic separating fault region and the problem of complete the power supply of non-first section fault zone.
Beneficial effects of the present invention: compared with prior art, the present invention is directed to the practical application of distributed feeder automation
In, due to route caused by often not having information interaction condition between transforming plant protecting and first route distribution line terminal
First section troubleshooting becomes blind zone problem, is mentioned based on existing condition in the case where not increasing additional investment and treatment conditions
A kind of novel route first section fault handling method that can be combined together completely with distributed feeder automation is gone out, can succeed
Realize the full line covering of feeder automation fault location, isolation and the power supply of non-first section fault zone, implementation is simple, effect is bright
It is aobvious.
Detailed description of the invention
Fig. 1 is that novel feeder of the present invention automates route first section troubleshooting process figure；
Fig. 2 is embodiment topological diagram.
Specific embodiment
With reference to the accompanying drawing and invention is described further in specific embodiment:
As shown in Fig. 1~2, a kind of distribution line first section fault handling method under the conditions of non-interactive type passes through substation
The matching and logical action of outlet guard time definite value, and the fault recovery under the conditions of distributed feeder automation communications is combined,
Substation's outlet route first section is realized in the case where substation exit protection does not have information interaction condition with first station power distribution line terminal
Fault Isolation and non-first section fault zone service restoration.
Using route hand in hand when test, as shown in Fig. 2, wherein switch 1 and switch 6 correspond to transforming plant protecting, switch
2- switch 5 corresponds to distribution line terminal, the protection of switch 1 and 2 distribution line terminal of switch, the protection of switch 6 and 5 distribution wire of switch
Do not have information interaction condition between the terminal of road, information exchange can be carried out between remaining distribution line terminal；2 distribution line of switch
Terminal, the adjusting of 5 distribution line terminal of switch are decompression delay tripping, delay time T=8s；The protection of switch 1,6 relaying configuration of switch
Secondary reclosing, wherein first time reclosure time T1=2s, second of reclosure time T2=5s；
If failure occurs between switch 1 and switch 2:
1) it is acted after the protection of switch 1 detection failure, first time reclosing baulk after 2s illustrates for permanent fault；It opens
After closing 2 distribution line terminals detection decompression, start the timing of decompression delay tripping；
2) switch 1 protects secondary unsuccessful reclosing after 7s, and 2 distribution line terminal of switch is still in detection decompression state；
3) 2 distribution line terminal of switch illustrates that failure generation is opened in substation's outlet first section still in decompression state after 8s
It closes between 1 and switch 2, the tripping of 2 distribution line terminal of switch, fault section positioning and isolation are completed；
4) after failure is successfully isolated, distributed feeder automation restores function starting, and non-faulting side distribution line terminal is logical
It crosses information exchange and topology calculates, 5 distribution line terminal check of interconnection switch itself needs to act, and starting is closed a floodgate, closing success
The power supply of non-first section fault zone is completed afterwards；
If failure occurs between switch 2 and switch 3:
1) it is acted after the protection of switch 1 detection failure, single shot reclosing baulk after 2s illustrates for permanent fault；Switch 2
After distribution line terminal detects decompression, start the timing of decompression delay tripping；The protection of switch 1 starts secondary reclosing timing starting；
2) the synchronous detection failure of 2 distribution line terminal of switch starts distributed feeder automation positioning function, positioning failure
For point between switch 2 and switch 3, the two corresponds to distribution line terminal difference tripping switch 2 and switch 3, completes isolated fault；
3) after the completion of Fault Isolation, distributed feeder automation restores function starting, and non-faulting side distribution line terminal is logical
It crosses information exchange and topology calculates, the confirmation of interconnection switch 5 itself needs to act, and starting is closed a floodgate, and completes non-first section after closing success
The power supply of fault zone；
4) switch 1 protects secondary reclosing to act after 7s occurs for failure simultaneously, because failure is successfully isolated, at this time two
Secondary reclosing success；
5) because switch 1 protects secondary reclosing success, 2 distribution line terminal decompression condition of switch disappears, and decompression is prolonged
When 8s do not reach, 2 distribution line terminal of switch will not act tripping, this troubleshooting terminates.
The present invention is directed in the practical application of distributed feeder automation, due to transforming plant protecting and first route distribution wire
Route first section troubleshooting becomes blind zone problem caused by often not having information interaction condition between the terminal of road, based on existing
Condition, in the case where not increasing additional investment and treatment conditions, propose a kind of novel can present with distribution completely
The route first section fault handling method that line automation combines together can successfully realize feeder automation fault location, isolation and non-
The full line covering of first section fault zone power supply, implementation is simple, effect is obvious.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (2)
1. the distribution line first section fault handling method under the conditions of a kind of non-interactive type, it is characterised in that: pass through substation's outlet
The matching and logical action of guard time definite value, and the fault recovery under the conditions of distributed feeder automation communications is combined, becoming
Outlet protection in power station does not have the event that substation's outlet route first section is realized under information interaction condition with first station power distribution line terminal
Phragma is from the service restoration with non-first section fault zone；The described first station power distribution line terminal tripping delay definite value T, substation go out
Mouth protection single shot reclosing time T1 and substation exit protect secondary reclosure time T2；The T > T1+T2；
The Fault Isolation of substation's outlet route first section is to set substation exit protection and first station power distribution route end first
Substation's outlet first section between end breaks down, and the two does not have information interaction condition；Secondly substation exit protection detection
It is acted after failure, single shot reclosing baulk after single shot reclosing time T1 illustrates for permanent fault；First station power distribution route is whole
After end detection decompression, start the timing of decompression delay tripping；Substation exit protection two after the secondary reclosure time T2 time again
Secondary unsuccessful reclosing, first station power distribution line terminal is still in detection decompression state；Then first station power distribution line terminal tripping delay
Definite value T, and T > T1+T2 illustrate that failure occurs in route first section, first station power distribution line terminal is jumped still in decompression after arrival
Lock, fault section positioning and isolation are completed；After final fault is successfully isolated, distributed feeder automation restores function starting, non-
Failure side distribution line terminal is calculated by information exchange and topology, and interconnection switch, which confirms, itself to be needed to act, and starting is closed a floodgate, and is closed
The power supply of non-first section fault zone is completed after lock success；
The service restoration of the non-first section fault zone is to set the adjacent part of path for carrying out information exchange first to break down,
Do not have information interaction condition between substation exit protection and first station power distribution line terminal；Secondly substation exit protection detection
It is acted after failure, single shot reclosing baulk after single shot reclosing time T1 illustrates for permanent fault；First station power distribution route is whole
After end detection decompression, start the timing of decompression delay tripping；Substation exit protects secondary reclosing timing starting；It is again because dynamic
Work occurs to go out route first section in non-substation, and related distribution line terminal can detect failure, while it is automatic to start distributed feeder line
Change positioning function successfully positions and isolated fault；Then after the completion of Fault Isolation, distributed feeder automation restores function starting,
Non-faulting side distribution line terminal is calculated by information exchange and topology, and interconnection switch, which confirms, itself to be needed to act, and starting is closed a floodgate,
The power supply of non-first section fault zone is completed after closing success；Subsequently when substation exit protects secondary reclosure time T2 to reach
Afterwards, because failure is successfully isolated, substation exit protects secondary reclosing success at this time；It is last to be protected because of substation exit
Secondary reclosing success, first station power distribution line terminal decompression condition disappear, and decompression delay does not reach T > T1+T2, first station power distribution
Line terminal will not act tripping, until this troubleshooting terminates.
2. the distribution line first section fault handling method under the conditions of a kind of non-interactive type according to claim 1, feature
Be: substation's outlet route first section is the distribution wire between substation exit protection and first station power distribution line terminal
Road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611023196.1A CN106374444B (en) | 2016-11-21 | 2016-11-21 | A kind of distribution line first section fault handling method under the conditions of non-interactive type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611023196.1A CN106374444B (en) | 2016-11-21 | 2016-11-21 | A kind of distribution line first section fault handling method under the conditions of non-interactive type |
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| CN106374444B true CN106374444B (en) | 2019-07-19 |
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| CN101867223A (en) * | 2010-04-08 | 2010-10-20 | 浙江省电力试验研究院 | Automatic system fault handling method of distribution network containing a plurality of distributed power supplies |
| CN102005746A (en) * | 2010-11-30 | 2011-04-06 | 南京南瑞继保电气有限公司 | Method based on topology protection of distributing network |
| CN102306929A (en) * | 2011-09-14 | 2012-01-04 | 宁波市鄞州供电局 | Method and system for realizing fault self-healing |
| CN102916409A (en) * | 2012-11-13 | 2013-02-06 | 山东电力集团公司济南供电公司 | Voltage-time type feeder automation running method based on parameter adjustment |
| CN103606910A (en) * | 2013-12-06 | 2014-02-26 | 云南电网公司大理供电局 | Wide area information based fault self-healing method for dead zone of feeder outlet of distribution network |
-
2016
- 2016-11-21 CN CN201611023196.1A patent/CN106374444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867223A (en) * | 2010-04-08 | 2010-10-20 | 浙江省电力试验研究院 | Automatic system fault handling method of distribution network containing a plurality of distributed power supplies |
| CN102005746A (en) * | 2010-11-30 | 2011-04-06 | 南京南瑞继保电气有限公司 | Method based on topology protection of distributing network |
| CN102306929A (en) * | 2011-09-14 | 2012-01-04 | 宁波市鄞州供电局 | Method and system for realizing fault self-healing |
| CN102916409A (en) * | 2012-11-13 | 2013-02-06 | 山东电力集团公司济南供电公司 | Voltage-time type feeder automation running method based on parameter adjustment |
| CN103606910A (en) * | 2013-12-06 | 2014-02-26 | 云南电网公司大理供电局 | Wide area information based fault self-healing method for dead zone of feeder outlet of distribution network |
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