CN208127873U - A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system - Google Patents
A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system Download PDFInfo
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- CN208127873U CN208127873U CN201820259233.7U CN201820259233U CN208127873U CN 208127873 U CN208127873 U CN 208127873U CN 201820259233 U CN201820259233 U CN 201820259233U CN 208127873 U CN208127873 U CN 208127873U
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- communication unit
- switch
- feed terminals
- line feed
- distribution network
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- 238000004891 communication Methods 0.000 claims abstract description 54
- 230000000875 corresponding Effects 0.000 claims abstract description 19
- 230000003287 optical Effects 0.000 claims description 5
- 241000272814 Anser sp. Species 0.000 claims description 3
- 241000283899 Gazella Species 0.000 claims description 3
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000001052 transient Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 230000004382 visual function Effects 0.000 description 1
Abstract
The utility model discloses a kind of intelligent distributed feeder line fault of distribution network quickly to cut off shielding system, belongs to electrical engineering technical field；Including intellectualized switchgear, communication unit and line feed terminals；Multiple intellectualized switchgears are provided on route, each intellectualized switchgear is connect with a communication unit communication and a line feed terminals signal；Intellectualized switchgear includes feeder switch, voltage transformer, current transformer and intelligent terminal, each communication unit communication unit corresponding with adjacent intellectualized switchgear is communicated, and the collected information of intelligent terminal and the information received are sent to corresponding line feed terminals and analyzed by communication unit；By peer-to-peer communication network; by the information of each switch and adjacent switch Real-Time Sharing; so that the protection of different location is coordinated and is cooperated within the Millisecond time, keep fault outage range minimum, fault outage time most short, is suitable for suburb without ring environment.
Description
Technical field
The utility model belongs to electrical engineering technical field, fast more particularly to a kind of intelligent distributed feeder line fault of distribution network
Speed excision isolation processing system.
Background technique
Distribution and user contact most closely, directly affect the overall performance of system and the power supply quality of user.Instantly, match
It nets diversified switchtype and communication system and switch mechanical part easily breaks down, meanwhile, the height of distributed generation resource
Degree infiltration also proposes new challenge to the operation of distribution and control.
Utility model content
In view of the above-mentioned deficiencies, the utility model provide a kind of processing system that can quickly cut off isolated fault and its
Method is suitable for suburb without ring environment, and after the circuit breaker lock of fault point both ends, after waiting malfunction elimination, route replys power supply.Tool
Body technique scheme is as follows：
A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system, including intellectualized switchgear, communication unit
Member and line feed terminals；Multiple intellectualized switchgears, each intellectualized switchgear and a communication unit are provided on route
Communication is connected with a line feed terminals signal；The intellectualized switchgear includes feeder switch, voltage transformer, Current Mutual Inductance
Device and intelligent terminal, the feeder switch, current transformer and line feed terminals are connected on three-phase line, and voltage transformer is simultaneously
It is associated in corresponding feeder switch line side；Intelligent terminal and feeder switch, voltage transformer, current transformer, communication unit are believed
Number connection, line feed terminals connect with communication unit, feeder switch signal；It is mutual that intelligent terminal acquires corresponding feeder switch, voltage
Corresponding communication unit is sent information to after the information of sensor and current transformer；Each communication unit and adjacent intelligence
The corresponding communication unit of switchgear is communicated, and communication unit is by the collected information of intelligent terminal and receives adjacent logical
The information of letter unit is sent to corresponding line feed terminals and is analyzed, and line feed terminals are to feeder switch output order.
On the basis of above structure, line feed terminals are started using mutation current, only logical with adjacent line feed terminals equity
News, in the moment broken down, line feed terminals can not depend on main website, be carried out pair by communication unit and adjacent line feed terminals
Deng communication, the information such as the collected pressure flow data of each intelligent terminal, switch state and adjacent feeders terminal Real-Time Sharing make
The protection coordination of different location cooperates, and completes failure removal and isolation in Millisecond, can handle with online all fault types (three
Mutually short circuit, phase fault, single-phase earthing and combined failure etc.), adapt to the change of system operation mode.
Further, the communication unit is interchanger；The interchanger and substation, adjacent exchange main website
The connection of machine signal.
Further, the interchanger is made of optical cable and substation, master station communication interchanger and optical cable looped network
Local area network, every intelligent terminal inside local area network distributes IP address, passes through network topology and configure neighbouring relations, realize feeder line
Information exchange between terminal；Main website sends transformation isolated fault instruction by remotely controlling, to line feed terminals, changes route
Fault Isolation mode.
Further, the interchanger meets adjacent feeders by goose communication mode and adjacent switch communication
Real-time reliable communication between terminal.
Further, the interchanger uses Gazelle S1010i Ethernet switch.
Further, the intellectualized switchgear includes 2 voltage transformers, and voltage transformer is connected in parallel on pair respectively
The power supply side and load side for the feeder switch answered.
Further, the intellectualized switchgear and line feed terminals use integrated YDFW-12 cable branch box.
Intelligent terminal integrates relay protection, four functions such as distant, configures three sections of overcurrents and network type defencive function；With measurement and prison
Visual function：Measure the parameters of electric power such as three-phase current, voltage, third-harmonic component, the active and reactive, power factor of route；Real feedback
The state of wiretap and the excess flow fault condition and record for detecting feeder switch route；Meanwhile intelligent terminal has RS232,10/
100M Ethernet interface supports a variety of communication protocols such as IEC60870-5-101/104.
The beneficial effects of the utility model：
The moment that the utility model breaks down in distribution, line feed terminals can not depend on main website, by feeder switch it
Between communication, Millisecond complete failure removal；It ensures the circuit breaker trip nearest from fault point, makes fault outage range most
It is small, the fault outage time is most short.
Detailed description of the invention
Fig. 1 is that a kind of intelligent distributed feeder line fault of distribution network of the utility model quickly cuts off the structural representation of shielding system
Figure；
Fig. 2 is that a kind of intelligent distributed feeder line fault of distribution network of the utility model quickly cuts off shielding system communications framework and shows
It is intended to.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing：
A kind of intelligent distributed feeder line fault of distribution network as depicted in figs. 1 and 2 quickly cuts off shielding system, including intelligence
Switchgear, communication unit and line feed terminals；Multiple intellectualized switchgears are provided on route, each intelligent switch is set
It is standby to be connect with a communication unit communication and a line feed terminals signal；The intellectualized switchgear includes feeder switch, 2 electricity
Pressure mutual inductor, current transformer and intelligent terminal, the feeder switch, current transformer and line feed terminals are connected on triple line
On the road, 2 voltage transformers are connected in parallel on the power supply side and load side of corresponding feeder switch respectively；Intelligent terminal and feeder switch,
Voltage transformer, current transformer, the connection of communication unit signal, line feed terminals are connect with communication unit, feeder switch signal；Intelligence
Can terminal acquire corresponding feeder switch, voltage transformer and current transformer information after send information to corresponding communication
Unit；Each communication unit communication unit corresponding with adjacent intellectualized switchgear is communicated, and communication unit will be intelligent
The collected information of terminal and the information of the neighbouring communication units received are sent to corresponding line feed terminals and are analyzed, feeder line
Terminal is to feeder switch output order.
Wherein, communication unit is interchanger, and interchanger uses Gazelle S1010i Ethernet switch；Interchanger passes through
Optical cable and transformer substation communication, interchanger pass through goose communication mode and adjacent switch communication；By interchanger and optical cable looped network
The local area network of composition, every intelligent terminal inside local area network distribute IP address, pass through network topology and configure neighbouring relations, realize
Information exchange between line feed terminals.
Intellectualized switchgear and line feed terminals are using integrated Beijing Creative Distribution Automation Co., Ltd.
YDFW-12 (Dy22-M) high voltage cable branch box.Intelligent terminal integrates relay protection, four functions such as distant, configures three sections of mistakes
Stream and network type defencive function；With measurement and function for monitoring：It measures the three-phase current of route, voltage, third-harmonic component, have
The parameters of electric power such as function, idle, power factor；The state of real-time monitoring feeder switch and the over current fault for detecting feeder switch route
State simultaneously records；Meanwhile intelligent terminal has RS232,10/100M Ethernet interface, supports IEC60870-5-101/104 etc.
A variety of communication protocols.
A kind of intelligent distributed feeder line fault of distribution network based on structure as depicted in figs. 1 and 2 quickly cuts off shielding system, line
When road is broken down, specific process flow is as follows：
(1) the source side line feed terminals close to fault point start according to fault current, close to the source side feeder line of fault point
Terminal itself detects fault current, and receives adjacent feeders switch and have and only once faulty electric current, close to failure
Point source side line feed terminals issue trip command to corresponding feeder switch, and the source side feeder switch close to fault point is instantaneously jumped
Lock, the instantaneous separating brake of load side feeder switch decompression of fault point, failure removal.
(2) close to 5s after the line feed terminals tripping of the source side of fault point, close to the line feed terminals of the source side of fault point
Detect that corresponding feeder switch only has side and has voltage, the source side feeder switch close to fault point is by reclosing judgement
Transient fault or permanent fault.
(3) if transient fault, close to the source side feeder switch closing success of fault point, feeder switch on feeder line by
Grade obtains electric combined floodgate.
(4) if permanent fault, close to fault point source side feeder switch reclosing when, close to the source side of fault point
Instantaneous protection trips and is latched after line feed terminals itself detect fault current.
(5) residual voltage pulse is detected close to the line feed terminals itself of the load side of fault point, present close to fault point load side
Wiretap locking, isolated fault.
(6) after by manually debugging, the power supply of route Reverse recovery.
Although the specific embodiment of the utility model is described in detail and is illustrated above, it should be noted that
Be that we can make various changes and modifications the embodiment above, but these without departure from the utility model spirit and
Range documented by the attached claims.
Claims (7)
1. a kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system, which is characterized in that set including intelligent switch
Standby, communication unit and line feed terminals；Multiple intellectualized switchgears, each intellectualized switchgear and one are provided on route
Communication unit communication and line feed terminals signal connection；
The intellectualized switchgear includes feeder switch, voltage transformer, current transformer and intelligent terminal, the feedback
Wiretap, current transformer and line feed terminals are connected on three-phase line, and voltage transformer is connected in parallel on corresponding feeder switch line
Trackside；Intelligent terminal is connect with feeder switch, voltage transformer, current transformer, communication unit signal, line feed terminals with communicate
Unit, the connection of feeder switch signal；
Intelligent terminal acquire corresponding feeder switch, voltage transformer and current transformer information after send information to correspondence
Communication unit；Each communication unit communication unit corresponding with adjacent intellectualized switchgear is communicated, communication unit
The information of the collected information of intelligent terminal and the neighbouring communication units received is sent to corresponding line feed terminals to be divided
Analysis, line feed terminals are to feeder switch output order.
2. a kind of intelligent distributed feeder line fault of distribution network according to claim 1 quickly cuts off shielding system, feature exists
In the communication unit is interchanger；The interchanger is connect with substation, main website, adjacent interchanger signal.
3. a kind of intelligent distributed feeder line fault of distribution network according to claim 2 quickly cuts off shielding system, feature exists
In the interchanger passes through optical cable and substation, master station communication.
4. a kind of intelligent distributed feeder line fault of distribution network according to claim 2 quickly cuts off shielding system, feature exists
In the interchanger passes through goose communication mode and adjacent switch communication.
5. a kind of intelligent distributed feeder line fault of distribution network according to claim 2 quickly cuts off shielding system, feature exists
In the interchanger uses Gazelle S1010i Ethernet switch.
6. a kind of intelligent distributed feeder line fault of distribution network according to claim 1 quickly cuts off shielding system, feature exists
In the intellectualized switchgear includes 2 voltage transformers, and voltage transformer is connected in parallel on corresponding feeder switch respectively
Power supply side and load side.
7. a kind of intelligent distributed feeder line fault of distribution network according to claim 1 quickly cuts off shielding system, feature exists
In the intellectualized switchgear and line feed terminals use integrated YDFW-12 cable branch box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820259233.7U CN208127873U (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820259233.7U CN208127873U (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208127873U true CN208127873U (en) | 2018-11-20 |
Family
ID=64204219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820259233.7U Active CN208127873U (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208127873U (en) |
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2018
- 2018-02-14 CN CN201820259233.7U patent/CN208127873U/en active Active
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