CN108306265A - A kind of intelligent distributed feeder line fault of distribution network processing method - Google Patents
A kind of intelligent distributed feeder line fault of distribution network processing method Download PDFInfo
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- CN108306265A CN108306265A CN201810152258.1A CN201810152258A CN108306265A CN 108306265 A CN108306265 A CN 108306265A CN 201810152258 A CN201810152258 A CN 201810152258A CN 108306265 A CN108306265 A CN 108306265A
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- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 26
- 230000001052 transient effect Effects 0.000 claims abstract description 8
- 230000006837 decompression Effects 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 241000283899 Gazella Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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
- H02H7/261—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 involving signal transmission between at least two stations
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- H02J13/0006—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of intelligent distributed feeder line fault of distribution network processing method, any line feed terminals on circuit are communicated with adjacent feeders terminal respectively by communication unit；When line failure; mains side feeder switch close to fault point trips; the load side feeder switch decompression separating brake of fault point; line feed terminals close to the mains side of fault point judge to be transient fault or permanent fault by reclosing; in the case of permanent fault; close to fault point mains side feeder switch trip protection and be latched, close to fault point load side feeder switch locking, isolated fault；So that the protection of different location is coordinated and is coordinated within the Millisecond time information of each switch and adjacent switch Real-Time Sharing by peer-to-peer communication network, keeps fault outage range minimum, fault outage time most short.
Description
Technical field
The invention belongs to electrical engineering technical fields, more particularly to a kind of intelligent distributed feeder line fault of distribution network processing side
Method.
Background technology
Distribution contacts most closely with user, directly affects 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.
Invention content
In view of the above-mentioned deficiencies, the present invention provides one kind by introducing peer-to-peer communication network, will each switch detection
Data information and adjacent switch Real-Time Sharing feeder line fault of distribution network processing method, be suitable for suburb without ring environment, failure
After point both ends circuit breaker lock, after waiting for malfunction elimination, circuit replys power supply.Specific technical solution is as follows：
A kind of intelligent distributed feeder line fault of distribution network processing method, any line feed terminals on circuit pass through communication unit point
It is not communicated with adjacent feeders terminal；When line failure, the mains side line feed terminals close to fault point detect itself
Fault current, and receive adjacent feeders switch and have and only once faulty electric current, close to the mains side feeder line of fault point
Switch trip, the load side feeder switch decompression separating brake of fault point, failure removal；Close to the line feed terminals of the mains side of fault point
Detect that corresponding feeder switch only has side and has voltage, the mains side feeder switch close to fault point is by reclosing judgement
Transient fault or permanent fault；If transient fault, close to the mains side feeder switch closing success of fault point, on feeder line
Feeder switch step by step electric combined floodgate；In the case of permanent fault, close to fault point mains side feeder switch trip protection and close
Lock, the line feed terminals itself close to the load side of fault point detect residual voltage pulse, are closed close to fault point load side feeder switch
Lock, isolated fault.
When further, close to the mains side feeder switch reclosing of fault point, the mains side feeder line close to fault point is whole
It holds and itself detects fault current, and receive adjacent feeders switch to have and only once faulty electric current, close to fault point
Mains side feeder switch trip protection and be latched.
When further, close to the mains side feeder switch reclosing of fault point, the load side feeder line close to fault point is whole
End detects that corresponding feeder switch is in point position, and detects residual voltage pulse, is latched close to fault point load side feeder switch,
Isolated fault；That is the condition of feeder switch locking, which is that feeder switch is in, divides position, and detects residual voltage pulse.
Further, when line failure, the mains side line feed terminals close to fault point itself detect fault current,
And receiving adjacent feeders switch has and only once faulty electric current, the mains side feeder switch close to fault point are instantaneously jumped
Lock.
Further, when line failure, the mains side line feed terminals close to fault point itself detect fault current,
And receive that adjacent feeders switch has and only once faulty electric current, the mains side feeder switch close to fault point trip,
The instantaneous separating brake of load side feeder switch decompression of fault point.
When further, close to the mains side feeder switch reclosing of fault point, the mains side feeder line close to fault point is opened
Instantaneous protection is closed to trip and be latched.
Further, after line fault excision, the line feed terminals close to the mains side of fault point detect corresponding feeder line
Switch only have side have voltage, close to the feeder switch 5s of fault point after starting recloser, close to the mains side feeder line of fault point
Switch is transient fault or permanent fault by reclosing judgement；After line fault excision, line feed terminals start reclosing and sentence
Disconnected, the condition of reclosing is that corresponding feeder switch is in and divides position, and feeder switch only has side voltage, all places on circuit
In dividing in the feeder switch of position, only meet reclosing condition close to the feeder switch of the mains side of fault point.
In line failure, line feed terminals analyze whether itself examines by the information exchange with adjacent feeders terminal
Fault current is measured, meanwhile, whether adjacent feeders switch has and the only faulty electric current in side；Failure electricity is detected for one
For the feeder switch of the "on" position of stream, if fault point in its adjacent power side or load side gusset, by close to fault point
Mains side feeder switch tripping, cut off failure；Therefore, in arbitrary line failure, the electricity close to fault point can be realized
Source feeder switch trips.
After failure removal, line feed terminals analyze the information of voltage of the mains side and load side of feeder switch, if feeder switch
Only there is voltage in side, then line feed terminals send out reclosing instruction to feeder switch；By the information exchange of adjacent feeders terminal,
If failure is permanent fault unsuccessful reclosing, whether line feed terminals itself detect fault current by analyzing, meanwhile, phase
Whether adjacent feeder switch has and only the faulty electric current in side makes failure influence time and model to quickly cut off isolated fault
Enclose minimum；Fault clearing time 100ms, fault section isolation time 200ms.
Further, the information that the line feed terminals are communicated with adjacent feeders terminal includes：Mark, feeder line are sent in active
Switch number, feeder switch position, over-current state, feeder switch serial number, fault trip failure flags, Fault Isolation are successfully marked
Will, fault trip mark.
Beneficial effects of the present invention：
The present invention forms novel intelligent distributed (network type protection) strategy by introducing peer-to-peer communication network；By
Peer-to-peer communication network opens the information such as each data information, fault distinguishing information, on off state for switching and detecting with adjacent
Real-Time Sharing is closed, so that the protection of different location is coordinated and is coordinated within the Millisecond time, fault clearing time
100ms, fault section isolation time 200ms, non-faulting region turn within power-on time 2s；Ensure the open circuit nearest from fault point
Device trips, and keeps fault outage range minimum, fault outage time most short.
Description of the drawings
A kind of structural schematic diagram of intelligent distributed feeder line fault of distribution network processing method of Fig. 1 present invention；
Fig. 2 is a kind of intelligent distributed feeder line fault of distribution network processing method communications framework schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in detail：
A kind of intelligent distributed feeder line fault of distribution network processing method based on structure as depicted in figs. 1 and 2, appointing on circuit
One line feed terminals are communicated with adjacent feeders terminal respectively by communication unit；When line failure, specific process flow
It is as follows：
(1) started close to the mains side line feed terminals of fault point according to fault current, close to the mains 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 send out trip command to corresponding feeder switch, and the mains 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) 5s after tripping close to the line feed terminals of the mains side of fault point, close to the line feed terminals of the mains side of fault point
Detect that corresponding feeder switch only has side and has voltage, the mains side feeder switch close to fault point is by reclosing judgement
Transient fault or permanent fault.
(3) if transient fault, close to the mains 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 mains side feeder switch reclosing when, close to the mains side of fault point
Line feed terminals itself detect fault current, and receive adjacent feeders switch and have and only once faulty electric current, close to
The mains side line feed terminals of fault point send out tripping and blocking order to corresponding feeder switch, and the mains side close to fault point is presented
Wiretap instantaneous protection trips and is latched.
(5) it detects residual voltage pulse close to the line feed terminals itself of the load side of fault point, is presented close to fault point load side
Wiretap is latched, isolated fault.
(6) after by manually debugging, the power supply of circuit Reverse recovery.
The information that line feed terminals are communicated with adjacent feeders terminal includes：Mark, feeder switch number, feeder line is sent to open in active
Off position, over-current state, feeder switch serial number, fault trip failure flags, Fault Isolation Success Flag, fault trip mark.
Wherein, the number for the adjacent intelligent terminal that the IP address confirmation message that line feed terminals are distributed by intelligent terminal is sent, communication at
Link acknowledgement mark is returned after work(；After fault message is sent successfully, return information receives successful answer logo.
A kind of intelligence point involved by a kind of intelligent distributed feeder line fault of distribution network processing method as depicted in figs. 1 and 2
Cloth feeder line fault of distribution network processing system, including intellectualized switchgear, communication unit and line feed terminals；Being provided on circuit
Multiple intellectualized switchgears, each intellectualized switchgear are connect with a communication unit communication and a line feed terminals signal；Institute
The intellectualized switchgear stated includes feeder switch, 2 voltage transformers, current transformer and intelligent terminal, the feeder line
Switch, current transformer and line feed terminals are connected on three-phase line, and 2 voltage transformers are connected in parallel on corresponding feeder switch respectively
Mains side and load side；Intelligent terminal is connect with feeder switch, voltage transformer, current transformer, communication unit signal, feedback
Line terminal is connect with communication unit, feeder switch signal；Intelligent terminal acquires corresponding feeder switch, voltage transformer and electric current
Corresponding communication unit is sent information to after the information of mutual inductor；Each communication unit and adjacent intellectualized switchgear pair
The communication unit answered is communicated, and communication unit is by the collected information of intelligent terminal and the letter of neighbouring communication units received
Breath is sent to corresponding line feed terminals and is analyzed, and line feed terminals are to feeder switch output order.
Wherein, communication unit is interchanger, and interchanger uses Gazelle S1010i Ethernet switches；Interchanger passes through
Optical cable and transformer substation communication, interchanger pass through goose communication modes and adjacent switch communication；By interchanger and optical cable looped network
The LAN of composition, every intelligent terminal inside LAN 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 circuit, voltage, third-harmonic component, have
The parameters of electric power such as work(, idle, power factor；The over current fault of the state of monitoring feeder switch and detection feeder switch circuit in real time
State simultaneously records；Meanwhile intelligent terminal has RS232,10/100M Ethernet interface, supports IEC60870-5-101/104 etc.
A variety of communication protocols.
Although specific embodiments of the present invention are described in detail and are illustrated above, it should be noted that
We can make various changes and modifications the embodiment above, but these spirit without departure from the present invention and appended power
Profit requires recorded range.
Claims (8)
1. a kind of intelligent distributed feeder line fault of distribution network processing method, which is characterized in that any line feed terminals on circuit pass through
Communication unit is communicated with adjacent feeders terminal respectively；When line failure, close to the mains side line feed terminals of fault point
Fault current itself is detected, and receive adjacent feeders switch to have and only once faulty electric current, close to fault point
Mains side feeder switch trips, the load side feeder switch decompression separating brake of fault point, failure removal；Close to the mains side of fault point
Line feed terminals detect that corresponding feeder switch only has side and has voltage, the mains side feeder switch close to fault point pass through weight
It closes a floodgate and judges to be transient fault or permanent fault；If transient fault, close to fault point mains side feeder switch close a floodgate at
Work(, feeder switch on feeder line step by step electric combined floodgate；In the case of permanent fault, the mains side feeder switch close to fault point is protected
Shield trips and is latched, and the line feed terminals itself close to the load side of fault point detect residual voltage pulse, close to fault point load side
Feeder switch is latched, isolated fault.
2. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that close to event
When hindering the mains side feeder switch reclosing of point, the mains side line feed terminals close to fault point itself detect fault current, and
And receive adjacent feeders switch and have and only once faulty electric current, close to the mains side feeder switch trip protection of fault point
And it is latched.
3. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that close to event
When hindering the mains side feeder switch reclosing of point, the load side line feed terminals close to fault point detect at corresponding feeder switch
It in dividing position, and detects residual voltage pulse, is latched close to fault point load side feeder switch, isolated fault.
4. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that circuit is sent out
When raw failure, the mains side line feed terminals close to fault point itself detect fault current, and receive adjacent feeders switch
Have and only once faulty electric current, close to the mains side feeder switch instantaneous tripping of fault point.
5. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that circuit is sent out
When raw failure, the mains side line feed terminals close to fault point itself detect fault current, and receive adjacent feeders switch
Have and only once faulty electric current, the mains side feeder switch close to fault point trip, the load side feeder switch of fault point
The instantaneous separating brake of decompression.
6. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that close to event
When hindering the mains side feeder switch reclosing of point, the mains side feeder switch instantaneous protection close to fault point trips and is latched.
7. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that circuit event
After barrier excision, the line feed terminals close to the mains side of fault point detect that corresponding feeder switch only has side and has voltage, close to
Starting recloser after the feeder switch 5s of fault point, the mains side feeder switch close to fault point judge to be instantaneous by reclosing
Failure or permanent fault.
8. a kind of intelligent distributed feeder line fault of distribution network processing method according to claim 1, which is characterized in that described
The information that line feed terminals are communicated with adjacent feeders terminal includes：Sent in active mark, feeder switch number, feeder switch position,
Over-current state, feeder switch serial number, fault trip failure flags, Fault Isolation Success Flag, fault trip mark.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810152258.1A CN108306265A (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network processing method |
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| CN201810152258.1A CN108306265A (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network processing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233345A (en) * | 2018-02-14 | 2018-06-29 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off partition method |
| CN108306264A (en) * | 2018-02-14 | 2018-07-20 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network immediate processing method |
| CN110571771A (en) * | 2019-10-17 | 2019-12-13 | 广西电网有限责任公司南宁供电局 | novel self-adaptive power distribution automation fault judgment isolation mode method |
| CN112067884A (en) * | 2020-09-16 | 2020-12-11 | 广东电网有限责任公司 | Feeder branch fault detection method and system |
| CN112072622A (en) * | 2020-09-15 | 2020-12-11 | 广东电网有限责任公司 | Network type protection multi-point fault processing method |
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| CN108233345A (en) * | 2018-02-14 | 2018-06-29 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off partition method |
| CN108306264A (en) * | 2018-02-14 | 2018-07-20 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network immediate processing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233345A (en) * | 2018-02-14 | 2018-06-29 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off partition method |
| CN108306264A (en) * | 2018-02-14 | 2018-07-20 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network immediate processing method |
| CN110571771A (en) * | 2019-10-17 | 2019-12-13 | 广西电网有限责任公司南宁供电局 | novel self-adaptive power distribution automation fault judgment isolation mode method |
| CN110571771B (en) * | 2019-10-17 | 2021-06-15 | 广西电网有限责任公司南宁供电局 | Novel self-adaptive power distribution automation fault judgment isolation mode method |
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| CN112067884A (en) * | 2020-09-16 | 2020-12-11 | 广东电网有限责任公司 | Feeder branch fault detection method and system |
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