CN108808632A - It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature - Google Patents
It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature Download PDFInfo
- Publication number
- CN108808632A CN108808632A CN201710307064.XA CN201710307064A CN108808632A CN 108808632 A CN108808632 A CN 108808632A CN 201710307064 A CN201710307064 A CN 201710307064A CN 108808632 A CN108808632 A CN 108808632A
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- China
- Prior art keywords
- execute
- switch
- fragmentation feature
- substation
- sides
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Classifications
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of guard methods and device that coincidence fragmentation feature is adaptive; when some region is broken down in supply line; all switches from substation to fault point can detect fault current and trip; unilateral side is switched after tripping electricity; then illustrate that installation site is substation exit, to execute reclosing function；The equal dead electricity of bilateral, then segmentation position of the explanation after substation exit switch, will execute fragmentation feature；For switch in position and both sides dead electricity is closed, then explanation is mounted on the segmentation position after substation exit switch, to execute fragmentation feature.By switching division position and both sides voltage condition, judges installation site, execute different function, to eliminate the trouble being manually arranged and the serious consequence caused by mistake is arranged.
Description
Technical field
The present invention relates to a kind of power distribution networks, more particularly, to a kind of isolation of distribution network failure and the method for fault self-recovery.
Background technology
Traditional automatic circuit and sectionaliser is two different products, executes different relay protective schemes.Even if being provided simultaneously with
Function and fragmentation feature are overlapped, artificial setting is also depended on, is individually performed and overlaps function or fragmentation feature.Artificial setting is often held
It is error-prone, once setting error can cause entire power grid to paralyse it will cause switch malfunction and misaction when serious.
Invention content
The present invention relates to the methods and dress in a kind of medium voltage network distribution network isolated fault region and recovery non-faulting region
Set, automatic identification installation site, to execute different defencive functions, for solve it is above-mentioned caused by manually setting error it is tight
Weight consequence.
A kind of overlap works as supply lines with the adaptive method and apparatus of fragmentation feature using breaker as executive component
When certain region is broken down in road, following steps are executed：
（1）Substation actively trips to the switch between fault point；
（2）Both sides voltage is detected after the completion of tripping；
（3）Both sides voltage arbitrarily has side to have electricity, then explanation is mounted on substation exit, needs to execute reclosing function；
（4）If the equal dead electricity of both sides voltage, illustrates to be mounted in after substation exit switch, execute fragmentation feature.
Further, switch is in position and both sides all dead electricity is closed, then explanation is mounted on point after substation exit switch
At section, fragmentation feature is executed.
Coincidence fragmentation feature adaptive approach and device provided by the invention, when some region is broken down in supply line
When, all switches from substation to fault point can detect fault current and trip, and unilateral side is switched after tripping electricity, then says
Bright installation site is substation exit, to execute coincidence function；The equal dead electricity of bilateral then illustrates to switch it mounted on substation exit
Segmentation position afterwards, will execute fragmentation feature；Switch is in position and both sides dead electricity is closed, then explanation is mounted on substation exit and switchs
Segmentation position later, will execute fragmentation feature.By switching division position and both sides voltage condition, judges installation site, hold
Row different function, to eliminate the trouble being manually arranged and the serious consequence caused by mistake is arranged.
Description of the drawings
Fig. 1 is the flow chart overlapped in embodiment with the adaptive method and apparatus of fragmentation feature；
Fig. 2 is the system diagram of power distribution network in embodiment.
Specific implementation mode
The present invention provides a kind of coincidence fragmentation feature adaptive method and apparatus, can automatic identification installation site, hold
The corresponding function of row, to avoid the trouble being manually arranged and the serious consequence caused by mistake is arranged.
Embodiment of the method：
It is provided by the present invention coincidence and the adaptive method and apparatus of fragmentation feature flow chart as shown in Figure 1, specific steps such as
Under：
（1）Substation actively trips to the switch between fault point；
（2）Both sides voltage is detected after the completion of tripping；
（3）Both sides voltage arbitrarily has side to have electricity, then explanation is mounted on substation exit, needs to execute reclosing function；
（4）If the equal dead electricity of both sides voltage, illustrates to be mounted in after substation exit switch, execute fragmentation feature.
Further, switch is in position and both sides all dead electricity is closed, then explanation is mounted on point after substation exit switch
At section, fragmentation feature is executed.
Below by actually use the above method realize to overlap and fragmentation feature adaptive approach for, to the present embodiment into
Row further illustrates.
It is provided by the present invention coincidence and fragmentation feature adaptive approach as shown in Fig. 2, wherein CB1 be substation, KG1,
KG2, KG3 are the device of the embodiment of the present invention.Embodiment in order to further illustrate the present invention, it is assumed that the area between KG2 and KG3
Permanent failure occurs for domain, is as follows：
（1）KG1 and KG2 detects fault current, tripping；KG3 can't detect fault current, be failure to actuate；
（2）After tripping, KG1 detects that there is electricity in unilateral side, illustrates that installation at substation exit, next should execute coincidence work(
Energy；KG2 detects bilateral dead electricity, illustrates to be mounted at the segmentation after substation exit switchs, next should execute segmentation
Function；KG3 illustrates to be installed at the segmentation after substation exit switchs, it should trip also in position and bilateral dead electricity is closed
And execute fragmentation feature；
（3）Following KG1, which is executed, overlaps function, and KG2 and KG3 execute fragmentation feature, and separating brake is latched by KG2, and KG3 will be latched reversely
Incoming call closes a floodgate, to by the fault section isolation between KG2 and KG3, restore the non-faulting block supply between KG1 and KG2.
Specific implementation mode of the present invention is presented above, but the present invention is not limited to described embodiment.
Under the thinking that the present invention provides, to the skill in above-described embodiment by the way of being readily apparent that those skilled in the art
Art means are converted, are replaced, are changed, and play the role of with the present invention in relevant art means it is essentially identical, realize
Goal of the invention it is also essentially identical, the technical solution formed in this way is finely adjusted above-described embodiment to be formed, this technology
Scheme is still fallen in protection scope of the present invention.
Claims (2)
1. a kind of overlapping fragmentation feature adaptive guard method and device, which is characterized in that be used as using breaker and execute member
Part executes following steps when certain region is broken down in supply line：
（1）Substation actively trips to the switch between fault point；
（2）Both sides voltage is detected after the completion of tripping；
（3）Both sides voltage arbitrarily has side to have electricity, then explanation is mounted on substation exit, needs to execute reclosing function；
（4）If the equal dead electricity of both sides voltage, illustrates to be mounted in after substation exit switch, execute fragmentation feature；
Further, switch then illustrates in position and both sides all dead electricity is closed at the segmentation after substation exit switch,
Execute fragmentation feature.
2. a kind of guard method and device that coincidence fragmentation feature is adaptive according to claim 1, which is characterized in that logical
Switch division position and both sides voltage condition are crossed, judges installation site, executes different function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307064.XA CN108808632A (en) | 2017-05-04 | 2017-05-04 | It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307064.XA CN108808632A (en) | 2017-05-04 | 2017-05-04 | It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108808632A true CN108808632A (en) | 2018-11-13 |
Family
ID=64054455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710307064.XA Pending CN108808632A (en) | 2017-05-04 | 2017-05-04 | It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108808632A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102570594A (en) * | 2012-03-08 | 2012-07-11 | 华南理工大学 | Spare automatic adaptive switching method for transformer substation based on automatic reclosing information |
| CN106026051A (en) * | 2016-07-26 | 2016-10-12 | 国电南瑞科技股份有限公司 | Fixed-value adaptive voltage and current time type on-site feeder automation method |
-
2017
- 2017-05-04 CN CN201710307064.XA patent/CN108808632A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102570594A (en) * | 2012-03-08 | 2012-07-11 | 华南理工大学 | Spare automatic adaptive switching method for transformer substation based on automatic reclosing information |
| CN106026051A (en) * | 2016-07-26 | 2016-10-12 | 国电南瑞科技股份有限公司 | Fixed-value adaptive voltage and current time type on-site feeder automation method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |