CN107611946A - A kind of full killer switch feeder fault control method - Google Patents

A kind of full killer switch feeder fault control method Download PDF

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Publication number
CN107611946A
CN107611946A CN201710931088.2A CN201710931088A CN107611946A CN 107611946 A CN107611946 A CN 107611946A CN 201710931088 A CN201710931088 A CN 201710931088A CN 107611946 A CN107611946 A CN 107611946A
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CN
China
Prior art keywords
switch
killer
killer switch
transformer station
failure
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Pending
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CN201710931088.2A
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Chinese (zh)
Inventor
吴敏
杨建平
潘志远
徐丙垠
王慧勇
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SHANDONG KEHUI POWER AUTOMATION CO Ltd
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SHANDONG KEHUI POWER AUTOMATION CO Ltd
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Priority to CN201710931088.2A priority Critical patent/CN107611946A/en
Publication of CN107611946A publication Critical patent/CN107611946A/en
Pending legal-status Critical Current

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Abstract

A kind of full killer switch feeder fault control method, belongs to power system automation field.It is characterized in that:Comprise the following steps:Step 1001, functional configuration;Step 1002 ~ 1003, the tripping operation of failure side transformer station and reclosing after failure.Step 1004, killer switch closes a floodgate.Step 1005 ~ 1006, stoppage circuit breaker switch trip is detected again and enters Y time limit lockings.Step 1007, the killer switch of the fault section other end detects that residual voltage performs step 1008, otherwise performs step 1009;Step 1008, into X time limit lockings;Step 1009, faulty section is isolated.Step 1010, faulty section power supply is recovered;Step 1011, killer switch closing success, step 1012 ~ step 1013, restore electricity;This full killer switch feeder fault control method, participates in without main website, reduces transformer station's reclosing number and killer switch divide-shut brake number.

Description

A kind of full killer switch feeder fault control method
Technical field
A kind of full killer switch feeder fault control method, belongs to power system automation field.
Background technology
Existing domestic feeder line using breaker and transformer station's outlet switch when being used cooperatively, using electricity Piezo-electric stream-time type processing mode.In process circuit failure, by remembering decompression number and excessively stream number, coordinate transformer station Outlet switch repeatedly overlaps the mode for realizing fault section isolation and restoring power supply in non-broken-down section.If it happens is that in feeder line Permanent fault, transformer station's outlet switch will perform reclosing three times, and feeder line controller, which will carry out divide-shut brake three times, could realize event The ability that the isolation of barrier and fault-free region restore electricity, because transformer station's outlet switch reclosing is often, feeder line monitoring dress Put that action frequency is more, the impact to whole circuit is larger, therefore is unfavorable for improving the related request such as power supply quality and reliability, together When judgement for failure, judged by main website, therefore deterministic process is relatively complicated.
The content of the invention
The technical problem to be solved in the present invention is:Overcome the deficiencies in the prior art, there is provided it is a kind of to be participated in without main website, reduce The full killer switch feeder fault control method of transformer station's reclosing number and killer switch divide-shut brake number.
The technical solution adopted for the present invention to solve the technical problems is:The full killer switch feeder fault controlling party Method, multiple killer switches are provided between the transformer station at feeder line both ends, wherein any one killer switch is interconnection switch, therefore Barrier point is fault section between any two killer switch, between the killer switch of trouble point both sides, positioned at contact The transformer station of switch fault point side is failure side transformer station, and the transformer station of interconnection switch opposite side is non-faulting side transformer station; It is characterized in that:The control method comprises the following steps:
Step 1001, functional configuration is carried out to the transformer station on feeder line, killer switch and interconnection switch;
Step 1002, short trouble occurs in feeder line;
Step 1003, failure side transformer station detects over current fault, the tripping operation of its outlet switch, interconnection switch and failure side transformer station Between killer switch decompression tripping operation, again be delayed after, failure side transformer station carry out first time reclosing;
Step 1004, stood from the power transformation of failure side, the killer switch between failure side transformer station and interconnection switch closes a floodgate successively;
Step 1005, failure side transformer station judges whether to detect failure again, if detecting failure again, performs step successively Rapid 1006 ~ step 1010, if not detecting failure again, step 1011 ~ step 1013 is performed successively;
Step 1006, the killer switch Accelerated trip to be closed a floodgate for the last time in step 1004 and entrance Y time limit lockings;
Step 1007, whether the killer switch of the fault section other end detects residual voltage, if detecting residual voltage, performs step 1008, if being not detected by residual voltage, perform step 1009;
Step 1008, the killer switch of the fault section other end enters X time limit lockings;
Step 1009, from interconnection switch, the killer switch between interconnection switch and fault section perform successively step 1004 ~ Step 1006;The killer switch of the fault section other end enters Y time limit lockings, by fault section isolation;
Step 1010, interconnection switch starts contact closing function, and the killer switch between interconnection switch and fault section is without pressure Close a floodgate simultaneously locking decompression separating brake, is restored electricity between fault section and non-faulting side transformer station;
Step 1011, killer switch closing success, and locking o-volt protection;
Step 1012, if all killer switches are completed to close a floodgate, and complete to close a floodgate if all of killer switch, hold Row step 1015;If also killer switch does not close a floodgate, return to step 1004;
Step 1013, the failure that trouble point occurs is transient fault, and the breaker between failure side transformer station and interconnection switch is opened Whole closing success are closed, are restored electricity.
Preferably, in described step 1001, described functional configuration includes:Described transformer station's configuration excessively stream is protected Protective function and single shot reclosing function;Corresponding to described killer switch distribution monitor device configuration o-volt protection function and Acceleration protection function after reclosing;Described tie switches allocation contact closing function.
Preferably, described interconnection switch, which is in, divides position.
Compared with prior art, beneficial effect possessed by the present invention is:
By this full killer switch feeder fault control method, the feeder line of killer switch type when breaking down, Transformer station's outlet switch only needs reclosing that the isolation of fault section and the ability that restores electricity, feeder line supervising device once can be achieved The fault-free then locking decompression separating brake function after reclosing, accelerate to jump afterwards if on feeder line supervising device reclosing to failure Lock, therefore this method significantly reduces the divide-shut brake number of transformer station's reclosing number and line switching, greatly reduces existing There is impact of the multiple shot reclosing to circuit in technology, improve power supply quality, ensure that power supply reliability.Realize on the spot simultaneously Fault Isolation and the ability to restore electricity, participated in without main website, simplify judgement flow.
Brief description of the drawings
Fig. 1 is full killer switch feeder fault control method flow chart.
Fig. 2 ~ Figure 10 is full killer switch feeder fault control method feeder line control schematic diagram.
Wherein:1st, transformer station 2, killer switch 3, interconnection switch.
Embodiment
Fig. 1 ~ 10 are highly preferred embodiment of the present invention, and 1 ~ 10 the present invention will be further described below in conjunction with the accompanying drawings.
As shown in Fig. 2 being respectively arranged with a transformer station 1 at the both ends of one section of feeder line, set between Liang Ge transformer stations 1 There are some killer switches 2, wherein any one killer switch 2 is defined as interconnection switch 3.In the present embodiment two Six killer switches 2 are provided between transformer station 1, killer switch S1 ~ killer switch S6 are followed successively by, in killer switch Killer switch 2 between S5 and killer switch S6 is defined as interconnection switch 3, is defined as interconnection switch LS.In Fig. 2 ~ figure In feeder line control schematic diagram shown in 10, transformer station 1, killer switch 2 and interconnection switch 3, it is identified with black solid Transformer station 1 or killer switch 2 or interconnection switch 3 be in position state of closing, the transformer station 1 being identified with white framework or disconnected Road device switch 2 or interconnection switch 3 are in and divide position state.
As shown in figure 1, a kind of full killer switch feeder fault control method, comprises the following steps:
Step 1001, functional configuration is carried out;
On feeder line, functional configuration, wherein feeder line are carried out to the transformer station 1 at its both ends, killer switch 2 and interconnection switch 3 The transformer station 1 at both ends is configured with overcurrent protection function and single shot reclosing function, the distribution prison corresponding to killer switch S1 ~ S6 Control the acceleration protection function after device configuration o-volt protection function and reclosing, the configuration contact closing function of interconnection switch 3.
Step 1002, short trouble occurs in feeder line;
Short trouble occurs in feeder line, in this example, it is assumed that short trouble occurs in killer switch S3 and breaker Between switching S4, as shown in figure 3, the section between killer switch S3 and breakdown switch S4 is fault section.With interconnection switch 3 For basic point, the transformer station 1 positioned at the trouble point side of interconnection switch 3 is designated as failure side transformer station(Transformer station CB1), opened positioned at contact The transformer station 1 for closing 3 trouble point opposite sides is designated as non-faulting side transformer station(Transformer station CB2).
Step 1003, failure side transformer station outlet switch trips, the breaker between interconnection switch 3 and failure side transformer station Switch decompression tripping operation, failure side transformer station reclosing;
After short trouble occurs in feeder line, failure side transformer station(Transformer station CB1)Over current fault is detected, it goes out after delay Wiretap trips, the killer switch S1 between interconnection switch 3 and transformer station CB1 ~ killer switch S5 decompressions tripping operation, such as Fig. 4 After shown delay again, transformer station CB1 carries out first time reclosing, as shown in Figure 5.
Step 1004, killer switch closes a floodgate successively;
With failure side transformer station(Transformer station CB1)For starting point, killer switch 2 between failure side transformer station and interconnection switch according to Secondary combined floodgate.
Step 1005, if detect failure again;
Failure side transformer station judges whether to detect failure again, if detecting failure again, performs step 1006 ~ step successively Rapid 1011, if not detecting failure again, step 1012 ~ step 1014 is performed successively.
Step 1006, the Accelerated trip of killer switch 2 of last time combined floodgate and entrance Y time limit lockings;
If the killer switch 2 to close a floodgate for the last time in step 1004 breaks down again after closing a floodgate, represent to occur The short trouble of trouble point is permanent fault, now the Accelerated trip of killer switch 2 and entrance Y time limit lockings.Work as generation After the situation of fault recurrence, while represent to occur to close a floodgate in last time(Fault recurrence after combined floodgate)Killer switch 2 For the end points of fault section.
With reference to Fig. 8, because trouble point occurs between killer switch S3 and killer switch S4, therefore when breaker is opened Fault recurrence after S3 closes a floodgate, now killer switch S3 o-volt protections tripping operation are closed, and enters Y time limit lockings.
Step 1007, whether the killer switch of the fault section other end detects residual voltage, if detecting residual voltage, performs Step 1008, if being not detected by residual voltage, step 1009 is performed.
Step 1008, into X time limit lockings;
The killer switch of the fault section other end(Killer switch S4 in Fig. 8)Into X time limit lockings.
Step 1009, from interconnection switch be starting point to fault section direction, the open circuit between interconnection switch and fault section Device switch performs step 1004 ~ step 1006 successively.
With reference to Fig. 9, since interconnection switch 3, there is voltage side without pressure in killer switch S5 sides, close a floodgate and be delayed it Killer switch S5 closing success and locking o-volt protection afterwards;Killer switch S4 is fault section relative to killer switch S3 The killer switch of opposite side, therefore killer switch S4 enters Y time limit lockings, and fault section is isolated.
Step 1010, the power supply between fault section and non-faulting side transformer station is recovered;
Interconnection switch 3 starts contact closing function, and after delay, killer switch S5 switches divide position, and side You Ya sides are without pressing Lock and locking decompression separating brake, restore electricity between fault section and non-faulting side transformer station.
Step 1011, the 2-in-1 lock success of killer switch, and locking o-volt protection;
If not detecting failure after the 2-in-1 lock of killer switch again, the 2-in-1 lock success of killer switch, locking mistake after delay Pressure protection and overcurrent protection;
With reference to Fig. 6, there is voltage side without pressure in killer switch S1 sides, after closing a floodgate and being delayed killer switch S1 close a floodgate into Work(and locking o-volt protection and overcurrent protection;There is voltage side without pressure in killer switch S2 sides, disconnected after closing a floodgate and being delayed Road device switch S2 closing success and locking o-volt protection and overcurrent protection, as shown in Figure 7.
Step 1012, if all killer switches 2 are completed to close a floodgate;
Whether all killer switches 2 are completed to close a floodgate, and complete to close a floodgate if all of killer switch 2, perform step 1013;If also killer switch 2 does not close a floodgate, return to step 1004.
Step 1013, restore electricity;
The failure that trouble point occurs is transient fault, and the killer switch 2 between failure side transformer station and interconnection switch all closes Lock success, restores electricity, as shown in Figure 10.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.

Claims (3)

1. a kind of full killer switch feeder fault control method, the transformer station at feeder line both ends(1)Between be provided with multiple breakers Switch(2), wherein any one killer switch(2)For interconnection switch(3), trouble point is located at any two killer switch (2)Between, the killer switch of trouble point both sides(2)Between be fault section, positioned at interconnection switch(3)The change of trouble point side Power station is failure side transformer station, interconnection switch(3)The transformer station of opposite side is non-faulting side transformer station;It is characterized in that:It is described Control method comprises the following steps:
Step 1001, to the transformer station on feeder line(1), killer switch(2)And interconnection switch(3)Carry out functional configuration;
Step 1002, short trouble occurs in feeder line;
Step 1003, failure side transformer station detects over current fault, the tripping operation of its outlet switch, interconnection switch(3)Become with failure side Killer switch decompression tripping operation between power station, after being delayed again, failure side transformer station carries out first time reclosing;
Step 1004, stood from the power transformation of failure side, the killer switch between failure side transformer station and interconnection switch(2)Close successively Lock;
Step 1005, failure side transformer station judges whether to detect failure again, if detecting failure again, performs step successively Rapid 1006 ~ step 1010, if not detecting failure again, step 1011 ~ step 1013 is performed successively;
Step 1006, the killer switch to be closed a floodgate for the last time in step 1004(2)Accelerated trip simultaneously enters Y time limit lockings;
Step 1007, whether the killer switch of the fault section other end detects residual voltage, if detecting residual voltage, performs step 1008, if being not detected by residual voltage, perform step 1009;
Step 1008, the killer switch of the fault section other end enters X time limit lockings;
Step 1009, from interconnection switch(3)Rise, interconnection switch(3)Killer switch between fault section(2)Perform successively Step 1004 ~ step 1006;The killer switch of the fault section other end enters Y time limit lockings, by fault section isolation;
Step 1010, interconnection switch(3)Start contact closing function, interconnection switch(3)Breaker between fault section is opened Close without pressing lock and locking decompression separating brake, restored electricity between fault section and non-faulting side transformer station;
Step 1011, killer switch(2)Closing success, and locking o-volt protection;
Step 1012, if all killer switches(2)Complete to close a floodgate, if all of killer switch(2)Complete Close a floodgate, perform step 1015;If also killer switch(2)Do not close a floodgate, return to step 1004;
Step 1013, the failure that trouble point occurs is transient fault, failure side transformer station and interconnection switch(3)Between breaker Whole closing success are switched, are restored electricity.
2. full killer switch feeder fault control method according to claim 1, it is characterised in that:In described step In 1001, described functional configuration includes:To described transformer station(1)Configure overcurrent protection function and single shot reclosing function; Described killer switch(2)Acceleration protection work(after corresponding distribution monitor device configuration o-volt protection function and reclosing Energy;Described interconnection switch(3)Configuration contact closing function.
3. full killer switch feeder fault control method according to claim 1 or 2, it is characterised in that:Described connection Network switchs(3)In dividing position.
CN201710931088.2A 2017-10-09 2017-10-09 A kind of full killer switch feeder fault control method Pending CN107611946A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109473955A (en) * 2018-11-14 2019-03-15 珠海许继电气有限公司 A kind of adaptive distribution line failure treating method based on breaker
CN110148930A (en) * 2019-06-21 2019-08-20 石家庄科林电气股份有限公司 The method of fault location and topology automatic identification in distribution network
CN110994563A (en) * 2019-08-14 2020-04-10 涂其华 Feeder line current protection function configuration method

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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

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Publication number Priority date Publication date Assignee Title
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

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109473955A (en) * 2018-11-14 2019-03-15 珠海许继电气有限公司 A kind of adaptive distribution line failure treating method based on breaker
CN109473955B (en) * 2018-11-14 2020-04-14 珠海许继电气有限公司 Self-adaptive distribution line fault processing method based on circuit breaker
CN110148930A (en) * 2019-06-21 2019-08-20 石家庄科林电气股份有限公司 The method of fault location and topology automatic identification in distribution network
CN110148930B (en) * 2019-06-21 2021-02-26 石家庄科林电气股份有限公司 Method for fault location and automatic topology identification in power distribution network
CN110994563A (en) * 2019-08-14 2020-04-10 涂其华 Feeder line current protection function configuration method

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