CN108376965A - A kind of intelligent distributed feeder line fault of distribution network house dog processing method - Google Patents
A kind of intelligent distributed feeder line fault of distribution network house dog processing method Download PDFInfo
- Publication number
- CN108376965A CN108376965A CN201810152251.XA CN201810152251A CN108376965A CN 108376965 A CN108376965 A CN 108376965A CN 201810152251 A CN201810152251 A CN 201810152251A CN 108376965 A CN108376965 A CN 108376965A
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- CN
- China
- Prior art keywords
- house dog
- line
- feed terminals
- pressure
- line feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
Abstract
The invention discloses a kind of intelligent distributed feeder line fault of distribution network house dog processing method, when line failure, if line feed terminals detect fault current and zero-pressure is no more than definite value, then detect without pressure without stream, house dog action, feeder switch tripping；If line feed terminals detect fault current and zero-pressure is more than definite value, house dog action, feeder switch tripping；The present invention may be provided at branch line, and branch line is nursed as house dog.
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 house dog
Processing 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 a kind of intelligent distributed feeder line fault of distribution network house dog processing methods.
Specific technical solution is as follows：
A kind of intelligent distributed feeder line fault of distribution network house dog processing method, when line failure, if line feed terminals are examined
It measures fault current and zero-pressure is no more than definite value, then detect without pressure without stream, house dog action, feeder switch tripping；If feedback
Line terminal detects fault current and zero-pressure is more than definite value, house dog action, feeder switch tripping.
Further, when line failure, if line feed terminals in voltage transformer acquisition voltage range, if occur it is short
Road failure, line feed terminals detect high current and zero-pressure is no more than definite value, and substation trips after also detecting that failure, line feed terminals
After detecting without pressing without stream, house dog action, feeder switch tripping；If line feed terminals are in voltage transformer acquisition voltage range
Interior, if earth fault occurs, line feed terminals detect high current and zero-pressure is more than definite value, and house dog action is jumped prior to substation
Lock.
The corresponding voltage transformer acquisition voltage range of line feed terminals is set as to the boundary of house dog.Occur in circuit short
In the case of the failure of road, if fault point in the boundary of house dog, line feed terminals according to the high current and zero-pressure detected not
It is judged as boundary internal short-circuit failure more than definite value, after substation fault tripping, line feed terminals detect that without pressure, without stream, house dog is dynamic
Make, line feed terminals send out trip command to corresponding feeder switch；If short circuit trouble point is not in house dog boundary, line feed terminals
High current is not detected and zero-pressure is no more than definite value, after substation fault tripping, line feed terminals are detected without pressure without stream, house dog
It is failure to actuate, is acted by other relay protective schemes.In the case where earth fault occurs for circuit, if fault point is in the boundary of house dog
Interior, line feed terminals are judged as earth fault in boundary according to the high current and zero-pressure detected more than definite value, house dog prior to
Substation's action tripping；If fault point, not in house dog boundary, high current is not detected in line feed terminals and zero-pressure is no more than fixed
Value, house dog are failure to actuate, and wait for substation La Lu.
Beneficial effects of the present invention：
On the basis of feeder line fault of distribution network processing system structure, by long-range or field adjustable, Fault Isolation mould can be changed
Formula improves the operability of fault of branch line protection；This system can be arranged in branch line simultaneously, branch line is nursed as house dog.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of intelligent distributed feeder line fault of distribution network house dog processing method of the present invention；
Fig. 2 is a kind of communications framework schematic diagram of intelligent distributed feeder line fault of distribution network house dog processing method 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 house dog processing method based on structure as depicted in figs. 1 and 2, circuit
When breaking down, house dog tripping need to meet one of the following conditions：
(1) if line feed terminals are in voltage transformer acquisition voltage range, if short trouble occurs, line feed terminals detect big electricity
Stream and zero-pressure are no more than definite value, and substation fault tripping, after line feed terminals are detected without pressing without stream, house dog action, feeder line is opened
Close tripping；
(2) if line feed terminals are in voltage transformer acquisition voltage range, if earth fault occurs, line feed terminals detect big electricity
Stream and zero-pressure are more than definite value, and house dog acts prior to substation and trips.
Distribution feedback involved by a kind of intelligent distributed feeder line fault of distribution network house dog processing method as shown in Figure 1 and Figure 2
Line fault processing system, including intellectualized switchgear, communication unit, line feed terminals；It is provided with multiple intelligences on circuit
Switchgear, each intellectualized switchgear are connect with a communication unit communication and a line feed terminals signal；The intelligence
Switchgear includes that feeder switch, 2 voltage transformers, current transformer and intelligent terminal, the feeder switch, electric current are mutual
Sensor and line feed terminals are connected on three-phase line, 2 voltage transformers be connected in parallel on respectively corresponding feeder switch mains side and
Load side；Intelligent terminal is connect with feeder switch, voltage transformer, current transformer, communication unit signal, line feed terminals with it is logical
Believe that unit, the connection of feeder switch signal, communication unit are connect with master station signal；Intelligent terminal acquires corresponding feeder switch, electricity
Corresponding communication unit is sent information to after the information of pressure mutual inductor and current transformer；Each communication unit and main website, phase
Adjacent intellectualized switchgear and corresponding communication unit is communicated, and communication unit is by the collected information of intelligent terminal and connects
The information of the main website, neighbouring communication units that receive 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 is passed through by optical cable and substation and master station communication, interchanger
Goose communication modes and adjacent switch communication；The LAN being made of interchanger and optical cable looped network, it is every inside LAN
Platform intelligent terminal distributes IP address, configures neighbouring relations by network topology, realizes the 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 not depart from the spirit and the attached claims of the present invention
Recorded range.
Claims (2)
1. a kind of intelligent distributed feeder line fault of distribution network house dog processing method, which is characterized in that when line failure, if feedback
Line terminal detects fault current and zero-pressure is no more than definite value, then detects without pressure without stream, house dog action, feeder switch jump
Lock；If line feed terminals detect fault current and zero-pressure is more than definite value, house dog action, feeder switch tripping.
2. a kind of intelligent distributed feeder line fault of distribution network house dog processing method according to claim 1, which is characterized in that
When line failure, if line feed terminals, in voltage transformer acquisition voltage range, if short trouble occurs, line feed terminals are examined
It measuring high current and zero-pressure is no more than definite value, substation trips after also detecting that failure, after line feed terminals are detected without pressing without stream,
House dog acts, feeder switch tripping；If line feed terminals are in voltage transformer acquisition voltage range, if earth fault occurs,
Line feed terminals detect high current and zero-pressure is more than definite value, and house dog action is tripped prior to substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152251.XA CN108376965A (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network house dog processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152251.XA CN108376965A (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network house dog processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108376965A true CN108376965A (en) | 2018-08-07 |
Family
ID=63017782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152251.XA Pending CN108376965A (en) | 2018-02-14 | 2018-02-14 | A kind of intelligent distributed feeder line fault of distribution network house dog processing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108376965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526258A (en) * | 2020-11-16 | 2021-03-19 | 广东电网有限责任公司 | Distribution network feeder line fixed value calibration table |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694419A (en) * | 2012-05-31 | 2012-09-26 | 广西泽龙电子科技有限公司 | Management system for integrated test and control |
| CN202663192U (en) * | 2012-05-31 | 2013-01-09 | 广西泽龙电子科技有限公司 | Detection and control integrated user boundary switch |
-
2018
- 2018-02-14 CN CN201810152251.XA patent/CN108376965A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694419A (en) * | 2012-05-31 | 2012-09-26 | 广西泽龙电子科技有限公司 | Management system for integrated test and control |
| CN202663192U (en) * | 2012-05-31 | 2013-01-09 | 广西泽龙电子科技有限公司 | Detection and control integrated user boundary switch |
Non-Patent Citations (1)
| Title |
|---|
| 王仕昆: "用户分界开关在10kV配电网中的应用研究", 《万方学位论文数据库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526258A (en) * | 2020-11-16 | 2021-03-19 | 广东电网有限责任公司 | Distribution network feeder line fixed value calibration table |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180807 |
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