CN104124672B - For the method that voltage-type fault section front end restores electricity - Google Patents
For the method that voltage-type fault section front end restores electricity Download PDFInfo
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- CN104124672B CN104124672B CN201410362059.5A CN201410362059A CN104124672B CN 104124672 B CN104124672 B CN 104124672B CN 201410362059 A CN201410362059 A CN 201410362059A CN 104124672 B CN104124672 B CN 104124672B
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- 230000005611 electricity Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001131 transforming effect Effects 0.000 claims abstract description 13
- 230000002633 protecting effect Effects 0.000 claims abstract description 11
- 238000004146 energy storage Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000000205 computational method Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
A kind of method restored electricity for voltage-type fault section front end, transforming plant protecting trip time, first time reclosure time, transformer station trip time again, calculates the time for overlapping to tripping operation.Then calculated according to the time limit arrange parameter of voltage-type switchgear on this time, with circuit, judge the concrete section of fault section, when failure is located at first interval, main station system locking transformer station outlet switch closes a floodgate.When faulty section is in non-first interval, main station system remote control sends reclosing command.The present invention is not under conditions of transformer station's outlet switch has secondary reclosing; using distribution automation system automatic decision fault section; in the case where the secondary reclosing of transforming plant protecting setting is not transformed, voltage-type feeder automation fault section can be both solved and restore electricity problem.It can also avoid changing transformer station's reclosing device, reduce the expense of change setting or more changing device, it is to avoid affect the operation of transforming plant protecting device.
Description
Technical field
The present invention relates to a kind of distribution network failure treatment technology, specifically a kind of to be used for voltage-type fault section front end
The method for restoring electricity.
Background technology
With voltage as failure criterion, transformer station jumps when a failure occurs it for existing normal voltage time type feeder automation
Lock, after transformer station's reclosing, terminal step by step through time-delay closing, trip to transformer station after fault section again, recognizes faulty section by conjunction
Between；Transformer station close a floodgate again after terminal time-delay closing step by step again, fault section front end termination locking completes fault section isolation,
Realize restoring electricity for fault section front end.
Under this method of operation, transformer station needs reclosing twice, realizes fault section isolation and the recovery of front end
The isolation of fault section is realized in power supply, first time reclosing, and second reclosing realizes that fault section front end restores electricity.But electricity
Power operating standard defines some live service conditions does not allow second coincidence, such as cable run not to allow to overlap.Therefore, no
Second reclosing function can be realized, causes fault section front end realize the step of restoring electricity, so as to electricity can not be realized
Die mould feeder automation function.Accordingly, it would be desirable to solve the problems, such as second reclosing of transformer station.
The content of the invention
For the shortcoming for overcoming above-mentioned prior art to exist, the invention provides a kind of be used for voltage-type fault section front end
The method for restoring electricity, it can both solve voltage-type in the case where the secondary reclosing of transforming plant protecting setting is not transformed
Feeder automation fault section restores electricity problem.
In order to solve the above problems, the present invention is employed the following technical solutions：It is a kind of extensive for voltage-type fault section front end
The method of multiple power supply, is characterized in that, comprise the following steps：
A kind of method restored electricity for voltage-type fault section front end, is characterized in that being to include：
A, setting transforming plant primary reclosing attribute, arrange voltage-type method of operation attribute, arrange transformer station and switch occur
Spring energy-storage time t1；
B, using power distribution automation main station system failure processing function, according to topology information, the transforming plant protecting trip time,
First time reclosure time, transformer station trip time again, calculate first interval accident and judge time limit T；
C, according to first interval accident judge time limit T, with circuit voltage-type switchgear time limit arrange parameter calculate,
Judge the concrete section of fault section；
D, when the fault section for calculating is located at first interval, main station system locking transformer station outlet switch closes a floodgate；
E, when calculate fault section be located at non-first interval when, main station system remote control sends reclosing command.
Further, the first interval accident in step b judge the computational methods in time limit as：When power distribution network occurs thing
Therefore when, the time that outlet switch first time reclosing action, switch close a floodgate is designated as t2, trouble point, transformer station is closed to again
The protection act outlet switch trip time is designated as t3, then first interval accident judges time limit T=t3-t2.
Further, step c includes：Determined in outlet according to the x time limits of first block switch for collecting
In the x time limits of second interval, tq1 is designated as, if T<Tq1*5/7, then be judged to first interval accident, if T>=tq1*5/7, then judge
For non-first interval accident.
The invention has the beneficial effects as follows：Under conditions of transformer station's outlet switch does not have secondary reclosing, using distribution certainly
Dynamicization system automatic decision fault section, recovers the power supply of fault section front end, realizes voltage-type feeder automation function, not
In the case of the secondary reclosing that transformation transforming plant protecting is arranged, the recovery of voltage-type feeder automation fault section can have both been solved
Powerup issue.It can also avoid changing transformer station's reclosing device, reduce the expense of change setting or more changing device, it is to avoid shadow
Ring the operation of transforming plant protecting device.
Description of the drawings
The present invention is described further with reference to the accompanying drawings and examples：
Fig. 1 is voltage-type transmission line structure schematic diagram；
Fig. 2 is the flow chart of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further details：
As in Fig. 1, FCB is that transformer station 10 kV outgoing line is switched, and PVS is voltage-type block switch, and A and F is first interval, B-
E is non-first interval.The method of the present invention is explained in conjunction with the flow chart of Fig. 2 below：
The Integral Thought of the method for the invention is：Using power distribution automation main station system failure processing function, according to opening up
Information, transforming plant protecting trip time, first time reclosure time, transformer station trip time again is flutterred, is calculated and is overlapped to jump
The time of lock.Then calculated according to the time limit arrange parameter of voltage-type switchgear on this time, with circuit, judge faulty section
Between concrete section.
When the fault section for calculating is located at first interval（A in such as Fig. 1 is interval）, the outlet of main station system locking transformer station
Switch closes a floodgate.
When the fault section for calculating is located at second interval（B in such as Fig. 1 is interval）Or when later interval, main station system is distant
Control sends reclosing command.Reclosing command is issued, according to the spring energy-storage Time Calculation of transformer station's outlet switch, it is desirable to more than bullet
Spring energy storage time.
After transformer station's outlet switch closes a floodgate, realize that the fault section front end of voltage-type feeder automation restores electricity, so as to
Realize voltage-type feeder automation function.
The present invention's comprises the following steps that：
Step 1, it is a coincidence system in electrical power distribution automatization system configuration transformer station reclosing.
Step 2, power distribution automation main station system configuration outlet the feeder automation method of operation be voltage-type.
Step 3, in the spring energy-storage time t1 of power distribution automation main station system configuration transformer station outlet switch.
Step 4, when power distribution network 10KV failures occur, outlet switch（FCB1 in Fig. 1）Tripping operation, afterwards, system is carried out
Overlap for the first time, the time that outlet switch FCB1 first time reclosing actions, switch close a floodgate is designated as t2.When overlapping at failure
When, outlet switch FCB1 can be tripped again, and the current trip time of transforming plant protecting action outlet switch FCB1 is designated as t3.
Step 5, according to x time limits of first block switch for collecting determining the x time limits of second interval in outlet, remember
For tq1.
Step 6, determine first interval accident judge time limit T=t3-t2.
If step 7, T<Tq1*5/7, then be judged to first interval accident, and locking transformer station closes a floodgate, transformer station 10 kV outgoing line
Circuit breaker lock, it is impossible to close a floodgate, accident treatment is completed.
If step 8, T>=tq1*5/7, then be judged to non-first interval accident, after the t1 times are waited, power distribution automation system
System sends out reclosing command, and close transformer station outlet switch FCB1, and accident treatment is completed.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this
Bright protection domain.
Claims (3)
1. a kind of method restored electricity for voltage-type fault section front end, is characterized in that being to include：
A, setting transforming plant primary reclosing attribute, arrange voltage-type method of operation attribute, arrange transformer station and switch spring occur
Energy storage time t1；
B, using power distribution automation main station system failure processing function, according to topology information, the transforming plant protecting trip time, first
Secondary reclosure time, transformer station trip time again, calculate first interval accident and judge time limit T；
C, according to first interval accident judge time limit T, with circuit voltage-type switchgear time limit arrange parameter calculate, judge
The concrete section of fault section；
D, when the fault section for calculating is located at first interval, main station system locking transformer station outlet switch closes a floodgate；
E, when calculate fault section be located at non-first interval when, main station system remote control sends reclosing command.
2. the method restored electricity for voltage-type fault section front end according to claim 1, it is characterised in that described
First interval accident in step b judge the computational methods of time limit T as：When power distribution network occurs accident, outlet switch first
The time that secondary reclosing action, switch close a floodgate is designated as t2, is closed to trouble point, the tripping operation of transforming plant protecting action outlet switch again
Time is designated as t3, then first interval accident judges time limit T=t3-t2.
3. the method restored electricity for voltage-type fault section front end according to claim 1, it is characterised in that described
Step c includes：The x time limits of second interval in outlet are determined according to the x time limits of first block switch for collecting, is designated as
Tq1, if T<Tq1*5/7, then be judged to first interval accident, if T>=tq1*5/7, then be judged to non-first interval accident.
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| CN201410362059.5A CN104124672B (en) | 2014-07-28 | 2014-07-28 | For the method that voltage-type fault section front end restores electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410362059.5A CN104124672B (en) | 2014-07-28 | 2014-07-28 | For the method that voltage-type fault section front end restores electricity |
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| CN104124672B true CN104124672B (en) | 2017-03-29 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137294B (en) * | 2015-09-25 | 2018-08-31 | 国网山东省电力公司济南供电公司 | A kind of voltage-type distribution system single phase earthing troubleshooting methodology |
| CN107453317B (en) * | 2017-09-21 | 2019-01-04 | 国网山东省电力公司 | A kind of reclosing method three times of distribution line |
| CN108548990B (en) * | 2018-04-04 | 2020-08-04 | 国电南瑞科技股份有限公司 | Power restoration strategy recommendation method based on power grid fault behavior analysis |
| CN110224882B (en) * | 2019-04-25 | 2021-01-22 | 国网江苏省电力有限公司电力科学研究院 | Energy storage power station remote control time delay test method and device |
| CN112003232B (en) * | 2020-08-17 | 2022-07-01 | 国网安徽省电力有限公司黄山供电公司 | Transformer substation tripping coincidence determination method based on network topology |
| CN113690834A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Overlapping type feeder automation line short circuit fault interval detection system on spot |
| CN113690835A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Detection method for short-circuit fault section of in-situ overlapping type feeder automation line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102005819A (en) * | 2010-11-12 | 2011-04-06 | 南京因泰莱配电自动化设备有限公司 | Fault isolation method of electric distribution network |
| 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 |
| CN103746353A (en) * | 2013-12-31 | 2014-04-23 | 宏秀电气有限公司 | Self-healing control system of intelligent distribution network and working method thereof |
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