CN103078302A - Automatic network reconstruction implementation method for power grid feeder line - Google Patents
Automatic network reconstruction implementation method for power grid feeder line Download PDFInfo
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- CN103078302A CN103078302A CN2012105939996A CN201210593999A CN103078302A CN 103078302 A CN103078302 A CN 103078302A CN 2012105939996 A CN2012105939996 A CN 2012105939996A CN 201210593999 A CN201210593999 A CN 201210593999A CN 103078302 A CN103078302 A CN 103078302A
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Abstract
The invention relates to an automatic network reconstruction implementation method for a power grid feeder line, which is used for limiting a station outlet breaking condition in a power grid feeder line automatic system, the breaking conditions of feeder terminal units and the divide-shut brake and locking condition of an interconnection switch to reconstruct a power grid feeder line automatic network. Compared with the prior art, the method has the advantages that the judgment of fault coverage is realized by comparing current signal data of upper and lower adjacent equipment through the feeder terminal units; only equipment on both sides of fault segments are removed, so that circuits in non-fault segments are prevented from suffering from power outage; each feeder terminal unit works independently, and fault handling actions are rapid, so that the defects of poor reliability, slow fault positioning and isolation and high communication requirements existing in the conventional automatic feeder line system are overcome; and the method is easy and rapid for implementing, can contribute to realizing in-situ intelligent judgment of divide-shut brake and one-time divide-shut brake network reconstruction, has no impact on a system and low communication requirements, and can be implemented through general public network communication.
Description
Technical field
The present invention relates to electric power system distribution automation field, be specifically related to a kind of electrical network feeder line automatic network reconstruction implementation method.
Background technology
Feeder automation refers to that transformer station's outlet is to the feeder line automation between the user power utilization equipment, mainly contain at present three kinds of feed automation modes: the first is based on the feed automation of main website, the second is voltage-type feeder automation, the third is the current mode feeder automation, and respectively there is following defective in these three kinds of feeder automation modes:
Feed automation mode based on main website: the information that main website sends by collecting all field apparatuss, the fault analysis and judgement position, carrying out automatic or manual issues guidance command and carries out network reconfiguration and adjust, this mode dependence is strong, require main website hardware, software, communication apparatus, communication channel, terminal, current-voltage transformer etc. all intact, information is comprehensively accurate, and the enforcement time is long;
Voltage-type feeder automation mode: carry out corresponding function and realize feeder automation by judging having or not of voltage, implement simple, but need transformer station to revise the reclosing number of times more than 2 times, each switch needs repeatedly folding that system is repeatedly impacted, and the whole system deadline is long;
Current mode feeder automation mode: carry out corresponding function and realize feeder automation by judging residual voltage pulse and overcurrent number of times, in the looped network of handing in hand, switch needs automatic circuit or circuit breaker to cooperate, need multiple shot reclosing, current ration is difficult to cooperate at circuit more in short-term, residual tooth pulse under some fault not or be difficult to adjust.
Summary of the invention
Technical problem to be solved by this invention be for above-mentioned prior art provide a kind of corresponding speed fast, implement simple, low on communication need, equipment is affected little, do not rely on the electrical network feeder line automatic network reconstruction implementation method of main website.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this electrical network feeder line automatic network reconstruction implementation method, thereby the separating brake condition that exports separating brake condition, line feed terminals for the electrical network feed line automatization system is stood and divide-shut brake, the barring condition of interconnection switch limit electrical network feeder line automatic network are reconstructed, the electrical network feed line automatization system comprises the station outlet, a plurality of line feed terminals and interconnection switch is characterized in that:
The station outlet separating brake condition of electrical network feed line automatization system:
Stand the outlet electric current greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
Stand when exporting decompression and three-phase no current, immediately separating brake;
The outlet electric current of standing does not receive the feedback signal that the adjacent feeders terminal is sent during greater than setting current, the protection again separating brake of adjusting after a period of time;
The outlet of standing receives that other equipment send requires separating brake information, immediately separating brake;
The separating brake condition of line feed terminals in the electrical network feed line automatization system:
This line feed terminals electric current is greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
This line feed terminals receives that other equipment send requires separating brake information, immediately separating brake;
The divide-shut brake of interconnection switch and barring condition in the electrical network feed line automatization system:
In the interconnection switch both end voltage during any end no-voltage signal, time-delay closing;
During any one line feed terminals separating brake adjacent with interconnection switch, immediately locking;
Interconnection switch receives that other equipment send requires separating brake information, immediately separating brake;
Interconnection switch receives the requirement combined floodgate information that other equipment are sent, and closes a floodgate immediately;
Interconnection switch receives that other equipment send requires locking information, immediately locking.
Preferably, in the station of electrical network feed line automatization system outlet separating brake condition, when station outlet electric current does not receive the feedback signal that the adjacent feeders terminal is sent during greater than setting current, the protection again separating brake of adjusting behind 0.3S～0.5S.
Compared with prior art, the invention has the advantages that: line feed terminals through neighbouring device current signal data relatively, realize the judgement of fault coverage, only excise two side apparatus of faulty section, avoided non-faulty section line outage, each line feed terminals works alone, the excision fault actions is rapid, has overcome existing automation feeder system poor reliability, the fault location isolation reaches the shortcoming high to communication need slowly, implements simple, speed is fast, intelligent decision divide-shut brake on the spot, disposable deciliter reconstructed network, to system without impact, low to communication need, general public network communication can realize.
Description of drawings
Fig. 1 is the typical 5 switches looped network electrical network feed line automatization system schematic diagram of handing in hand in the embodiment of the invention;
Fig. 2 is line feed terminals in the embodiment of the invention, the theory diagram of the outlet of standing, interconnection switch place control system.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Electrical network feeder line automatic network reconstruction implementation method provided by the invention, thereby the separating brake condition that exports separating brake condition, line feed terminals for the electrical network feed line automatization system is stood and divide-shut brake, the barring condition of interconnection switch limit electrical network feeder line automatic network are reconstructed, the electrical network feed line automatization system comprises the station outlet, a plurality of line feed terminals and interconnection switch, stand outlet separating brake condition, the separating brake condition of line feed terminals and divide-shut brake, the barring condition of interconnection switch are:
The station outlet separating brake condition of electrical network feed line automatization system:
Stand the outlet electric current greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
Stand when exporting decompression and three-phase no current, immediately separating brake;
The outlet electric current of standing does not receive the feedback signal that the adjacent feeders terminal is sent during greater than setting current, the protection again separating brake of adjusting behind 0.3 ~ 0.5S;
The outlet of standing receives that other equipment send requires separating brake information, immediately separating brake;
The separating brake condition of line feed terminals in the electrical network feed line automatization system:
This line feed terminals electric current is greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
This line feed terminals receives that other equipment send requires separating brake information, immediately separating brake;
The divide-shut brake of interconnection switch and barring condition in the electrical network feed line automatization system:
In the interconnection switch both end voltage during any end no-voltage signal, time-delay closing;
During any one line feed terminals separating brake adjacent with interconnection switch, immediately locking;
Interconnection switch receives that other equipment send requires separating brake information, immediately separating brake;
Interconnection switch receives the requirement combined floodgate information that other equipment are sent, and closes a floodgate immediately;
Interconnection switch receives that other equipment send requires locking information, immediately locking.
Below, hand in hand looped network electrical network feed line automatization system as example take typical 5 switches, said method is described in detail: the typical 5 switches looped network electrical network feed line automatization system of handing in hand comprises first stop outlet 1, second station outlet 2, the first line feed terminals 3, the second line feed terminals 4, interconnection switch 5, the 3rd line feed terminals 6, the 4th line feed terminals 7, referring to shown in Figure 1, wherein first stop outlet 1 links to each other by the first feeder line F1 with the first line feed terminals 3, link to each other by the second feeder line F2 between the first line feed terminals 3 and the second line feed terminals 4, link to each other by the 3rd feeder line F3 between the second line feed terminals 4 and the interconnection switch 5, link to each other by the 4th feeder line F4 between interconnection switch 5 and the 3rd line feed terminals 6, link to each other by the 5th feeder line F5 between the 3rd line feed terminals 6 and the 4th line feed terminals 7, link to each other by the 6th feeder line F6 between the 4th line feed terminals 7 and the second station outlet 2, the first line feed terminals, the second line feed terminals, the 3rd line feed terminals, the 4th line feed terminals, the first stop outlet, the second station outlet, the control system at interconnection switch place all has same structure, be routine techniques, include communication module, processor module, relay protection module and circuit breaker, referring to shown in Figure 2, the input of each line feed terminals receives the information that neighbouring line feed terminals is sent by communication module, also send simultaneously the information of this equipment by communication module, the processor module of line feed terminals links to each other with circuit breaker, send deciliter operational order to circuit breaker, and send local information for neighbouring equipment line feed terminals by communication module;
Under normal circumstances, first stop outlet 1, second station outlet the 2, first line feed terminals 3, the second line feed terminals 4 the 3rd line feed terminals 6, the 4th line feed terminals 7 are combined floodgate, interconnection switch 5 separating brakes;
When the first feeder line F1 fault,
(1), first stop exports the first line feed terminals 3 electric currents that the processor module at 1 place obtains according to communication module, and compare with first stop outlet self electric current, at this moment station outlet electric current is significantly greater than the first line feed terminals 3 electric currents, the processor module of first stop outlet sends information, makes first stop outlet separating brake;
(2), at this moment, the first stop outlet electric current that the processor module at the first line feed terminals place obtains according to communication module, and this electric current and self electric current compared, at this moment first stop outlet electric current is significantly greater than the first line feed terminals electric current, the first line feed terminals electric current approximates the second line feed terminals electric current, and the processor module of the first line feed terminals sends information and allows the first line feed terminals separating brake;
(3), the electric current of the first line feed terminals of obtaining according to communication module of the processor module at the second line feed terminals place and the electric current of the second line feed terminals, and these two current values are compared, at this moment the first line feed terminals electric current approximates the second line feed terminals electric current, the second line feed terminals electric current is less than setting value, and the second line feed terminals is failure to actuate;
(4), the processor module at interconnection switch place exports and the first line feed terminals separating brake information according to the first stop that communication module obtains, the processor module of interconnection switch sends information restores electricity the interconnection switch time-delay closing, and the first feeder line F1 fault namely is isolated.
After the first feeder line F1 fault is got rid of, general by manually first stop outlet and the first line feed terminals being closed a floodgate, with the interconnection switch separating brake;
When feeder line F2 fault:
(1), the electric current of the first line feed terminals of obtaining according to communication module of the processor module in first stop exit, and compare with self electric current, the electric current of at this moment first stop outlet approximates the electric current of the first line feed terminals, the first stop outlet is failure to actuate;
(2), the processor module at the first line feed terminals place exports electric current and the second line feed terminals electric current according to the first stop that communication module obtains, and these two electric currents and self electric current are compared, at this moment first stop outlet electric current approximates the first line feed terminals electric current, the first line feed terminals electric current is significantly greater than the second line feed terminals electric current, and the processor module at the first line feed terminals place sends information and makes immediately separating brake of the first line feed terminals;
(3), the first line feed terminals of obtaining according to communication module of the processor module at the second line feed terminals place, and this electric current and self electric current compared, at this moment the first line feed terminals electric current is significantly greater than the second line feed terminals electric current, and the processor module at the second line feed terminals place sends information and makes immediately separating brake of the second line feed terminals;
(4), the first line feed terminals of obtaining according to communication module of the processor module at interconnection switch place and the separating brake information of the second line feed terminals, send information by processor module the interconnection switch time-delay closing restored electricity, the F2 fault namely is isolated.
After the second feeder line F2 fault is got rid of, general by manually the first line feed terminals, the second line feed terminals being closed a floodgate, with the interconnection switch separating brake.
When feeder line F3 fault:
(1), the first line feed terminals electric current of obtaining according to communication module of the processor module in first stop exit, and compare in self electric current, at this moment first stop outlet electric current approximates the first line feed terminals electric current, the first stop outlet is failure to actuate;
(2), the processor module at the first line feed terminals place exports electric current and the second line feed terminals electric current according to the first stop that communication module obtains, at this moment first stop outlet electric current approximates the first line feed terminals electric current, the first line feed terminals electric current approximates the second line feed terminals electric current, and the first line feed terminals is failure to actuate;
(3), the first line feed terminals electric current, interconnection switch electric current and the second line feed terminals electric current that obtain according to communication module of the processor module at the second line feed terminals place, at this moment the first line feed terminals electric current approximates the second line feed terminals electric current, the second line feed terminals electric current is greater than setting value, the interconnection switch electric current is that the processor module at 0, the second line feed terminals place sends information and makes immediately separating brake of the second line feed terminals;
(4), the separating brake information of the second line feed terminals of obtaining according to communication module of the processor module at interconnection switch place, the processor module at interconnection switch place sends information and makes the interconnection switch locking, at this moment, the F3 fault is isolated.
After the 3rd feeder line F3 fault is got rid of, general by manually the second line feed terminals being closed a floodgate, with the interconnection switch separating brake.
The 4th feeder line F4 fault handling method is with the fault handling method of the 3rd feeder line F3, and the 5th feeder line F5 fault handling method is with the fault handling method of the second feeder line F2, and the 6th feeder line F6 fault handling method is with the fault handling method of the first feeder line F1.
Claims (2)
1. electrical network feeder line automatic network reconstruction implementation method, thereby the separating brake condition that exports separating brake condition, line feed terminals for the electrical network feed line automatization system is stood and divide-shut brake, the barring condition of interconnection switch limit electrical network feeder line automatic network are reconstructed, the electrical network feed line automatization system comprises the station outlet, a plurality of line feed terminals and interconnection switch is characterized in that:
The station outlet separating brake condition of electrical network feed line automatization system:
Stand the outlet electric current greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
Stand when exporting decompression and three-phase no current, immediately separating brake;
The outlet electric current of standing does not receive the feedback signal that the adjacent feeders terminal is sent during greater than setting current, the protection again separating brake of adjusting after a period of time;
The outlet of standing receives that other equipment send requires separating brake information, immediately separating brake;
The separating brake condition of line feed terminals in the electrical network feed line automatization system:
This line feed terminals electric current is greater than setting current and greater than the next one with it electric current of adjacent line feed terminals, immediately separating brake;
This line feed terminals receives that other equipment send requires separating brake information, immediately separating brake;
The divide-shut brake of interconnection switch and barring condition in the electrical network feed line automatization system:
In the interconnection switch both end voltage during any end no-voltage signal, time-delay closing;
During any one line feed terminals separating brake adjacent with interconnection switch, immediately locking;
Interconnection switch receives that other equipment send requires separating brake information, immediately separating brake;
Interconnection switch receives the requirement combined floodgate information that other equipment are sent, and closes a floodgate immediately;
Interconnection switch receives that other equipment send requires locking information, immediately locking.
2. electrical network feeder line automatic network reconstruction implementation method according to claim 1; it is characterized in that: in the station of electrical network feed line automatization system outlet separating brake condition; when outlet electric current in station does not receive the feedback signal that the adjacent feeders terminal is sent during greater than setting current, the protection again separating brake of adjusting behind 0.3S～0.5S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210593999.6A CN103078302B (en) | 2012-12-31 | 2012-12-31 | Automatic network reconstruction implementation method for power grid feeder line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210593999.6A CN103078302B (en) | 2012-12-31 | 2012-12-31 | Automatic network reconstruction implementation method for power grid feeder line |
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| CN103078302A true CN103078302A (en) | 2013-05-01 |
| CN103078302B CN103078302B (en) | 2015-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009473A (en) * | 2014-06-16 | 2014-08-27 | 王永法 | Self-healing method of distribution network system |
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